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Acrylic Fibres - manmade artificial fibres

Acrylic fibres are polymers formed by addition polymerization of at least 85% by weight of a chemical called

acrylonitrile or vinyl chanide. To polymerise vinyl cyanide the double bond between the first two carbon atoms is broken and the molecules

attach themselves to each other in a linear chain.

Acrylic Fibres - manmade artificial fibresAcrylic fibres are polymers formed by addition polymerization of at least 85% by weight of a chemical called acrylonitrile or vinyl chanide. To polymerise vinyl cyanide the double bond between the first two carbon atoms is broken and the molecules attach themselves to each other in a linear chain.

The manufacturing process of acrylic fiber

• ACRYLIC FIBER: A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of at least 85% by weight of acrylonitrile units [-CH2-CH(CN)-] (FTC definition). Acrylic fibers are produced by two basic methods of spinning (extrusion), dry and wet. In the dry spinning method, material to be spun is dissolved is a solvent. Afte extrusion through the spinneret, the solvent is evaporated, producing continuous filaments which later may be cut into staple, if desired. In wet spinning, the spinning solution is extruded into a liquid coagulating bath to form filaments, which are drawn, dried, and processed. CHARACTERISTICS: Because acrylic fibers are thermoplastic, fabrics may be heat-set for wrinkle resistance and to provide permanency to pleats. Acrylic fabrics have low moisture absorbency and dry relatively quickly. In general, acrylic fibers are resistant to the degrading effects of ultraviolet rays in sunlight and to a wide range of chemicals and fumes. They provide warmth in fabrics that are lightweight, soft, and resilient. Acrylic fibers have relatively poor flame resistance compared with other fibers.

• Some acrylic fabrics, particularly knit types, approximate the hand of fine wool. Because of the composition and cross section of the fiber, fabrics made therefrom have a high bulk to weight ratio. This is further enhanced with the so-called “high bulk” spun yarns.

• END USES: End uses of acrylic fibers include floor coverings, blankets, and apparel uses such as suitings, pile fabrics, coats, collars, linings, dresses, and shirts.

• Main properties of acrylic fibres:

Feels like wool, with high bulk.

Very good heat retention and fastness to light.

Very good shape retention, durability, easy care and quick dry qualities.

Qualities such as its wool-like feel and bulk make it pre-destined for use in the knitwear sector. The positive features of acrylic fibres come into their own when they are blended with a suitable proportion of wool or other natural fibres: the wool needs practically no additional finishing, does not felt when washed and is significantly easier to care for.

With sportswear, training and jogging suits particularly benefit from the special advantages of acrylic fibres - be it pure or blended: low water absorption, quicker water transport, light and weather resistance.

Our members use the following trade names for acrylic fibres: • Dolan

Dolanit Dralon Precursor

• Data Sheet for Acrylics • GeneralSynthetic fibre from oil. A synthetic fibre that possess

wool-like properties. Currently 75% of acrylic fibre production is used in clothing manufacture, seeing applications in range of products where it is suitable for use in knitwear. Acrylic fibres can be manufactured to have high bulk and are then ideal for use where good thermal insulation is a pre-requisite. Modacrylics are acrylic fibres that are manufactured with inherent fire retardant properties and are ideal where these are required.Available as:Wide range of woven and knitted fabrics. Generally the fibre used in garments will be as staple. Though predominantly available as 100% fibre, it can be blended with other fibres such as wool. The majority of application of acrylic fibres in corporate clothing will be as knitwear.

Property summary for Acrylics                                        

End of life Opportunity summary for Acrylics

Characteristics / options defined by the above graphs are proportionally represented and approximate,and are only intended as a guide. As such they do not represent any industry standards. Among otherthings, fabric construction and weight will influence the perceived ranking.

• Acrylic and Modacrylic• BISFA defines acrylic fibres as "fibres composed of linear macromolecules having in the chain at

least 85% (by mass) of acrylonitrile repeating units". Modacrylic fibres have, in the chain, at least 50% and less than 85% by mass of acrylonitrile. The first commercial fibres were introduced in the USA and Germany in 1948.

• Production• The starting materials for acrylonitrile are propylene and ammonia, which are reacted with oxygen

in the presence of catalysts. The acrylonitrile is then polymerised to produce polyacrylonitrile (PAN). The PAN is then spun into fibres from a solution in a solvent. Two process routes are used, wet spinning in which the fibres are spun into an aqueous coagulation bath and dry spinning in which the fibres are spun into hot air.

• The fibres are then stretched, washed and crimped. The modacrylic fibres contain halogen comonomers such as vinyl chloride or vinylidene chloride, and have flame-retardant properties.

• Properties and End-Uses• Acrylic fibres are soft, flexible and have a high loft. For this reason they are widely used in knitted

apparel end-uses such as sweaters and socks. In addition to knitted apparel, home furnishing and blankets are other important applications due to its excellent heat retention. 

• Acrylic fibres are polymers formed by addition polymerization of at least 85% by weight of a chemical called acrylonitrile or vinyl chanide. To polymerise vinyl cyanide the double bond between the first two carbon atoms is broken and the molecules attach themselves to each other in a linear chain.

• Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of ~100,000, about 1900 monomer units. To be called acrylic in the U.S, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. The Dupont Corporation created the first acrylic fibers in 1941 and trademarked them under the name Orlon.[1]

Acrylic Fibres - manmade artificial fibresAcrylic fibres are polymers formed by addition polymerization of at least 85% by weight of a chemical called acrylonitrile or vinyl chanide. To polymerise vinyl cyanide the double bond between the first two carbon atoms is broken and the molecules attach themselves to each other in a

linear chain.

e

General

Synthetic fibre from oil. A synthetic fibre that possess wool-like properties. Currently 75% of acrylic fibre production is used in clothing manufacture, seeing applications in range of products where it is suitable for use in knitwear. Acrylic fibres can be manufactured to have high bulk and are then ideal for use where good thermal insulation is a pre-requisite. Modacrylics are acrylic fibres that are manufactured with inherent fire retardant properties and are ideal where these are required.

Available as:

Wide range of woven and knitted fabrics. Generally the fibre used in garments will be as staple. Though predominantly available as 100% fibre, it can be blended with other fibres such as wool. The majority of application of acrylic fibres in corporate clothing will be as knitwear.

Colouration

White through to black possible. Bleaching acrylic fibres is best carried out using a chlorine dioxide based bleach. Acrylics fibres can be dyed using disperse and basic dyes. Pigment dyed fibres are also available where the pigments are added to the spinning dope prior to fibre extrusion. These will have a uniform colour throughout the fibre cross section. It can be dyed to bright colours with excellent colour fastness.

Dimensional

Stability

Generally good. Fabrics produced from acrylic fibres are generally considered to have good dimensional stability, however this will be influenced by the nature of the fabric construction. Looe knits may suffer if hang to dry.

Resistance

to pilling

Poor resistance. Acrylic fabrics are often susceptible to pilling and suffer from poor abrasion resistance.

Moisture

regain

Rapid regain and loss possible. Acrylic fibres show a low level of moisture regain, approximately 2%

Care

information

Warm wash or dry-clean. Acrylic garments may be washed or dry-cleaned. Machine washing with a warm water cycle is recommended with the use of a fabric conditioner to reduce static. Acrylic garments can be tumble-dried but this should be carried out at a low temperature setting with the garments being removed as soon as they are dry. Knitted acrylics should be dried flat to prevent the garments becoming misshapen. Drying over radiators is not recommended. When there is a need to iron the garments a moderate heat setting should be used.

Applications

95% of production into knitwear. Apparel - sweaters, socks, fleece, circular knit apparel, leisurewear.

End of life

Possibilities

Not biodegradable & may generate noxious fumes on burning. Garments made from acrylic fibres can be re-used. The fibres are resistant to biodegradation and therefore disposal to any process reliant on this, is not viable and landfill would be needed. Incineration is a possibility however conditions must be such as to prevent the formation of toxic by-products such as cyanide, from the fibres.

Eco aspects

Cost scope

(economic

impact)

Common

trade names

Dolan, Dralon, Courtelle, Leacryl, Orlon.

Alternatives

Generally used as an alternative to wool.

• Data Sheet for Acrylics • GeneralSynthetic fibre from oil. A synthetic fibre that possess wool-like properties. Currently 75% of acrylic fibre

production is used in clothing manufacture, seeing applications in range of products where it is suitable for use in knitwear. Acrylic fibres can be manufactured to have high bulk and are then ideal for use where good thermal insulation is a pre-requisite. Modacrylics are acrylic fibres that are manufactured with inherent fire retardant properties and are ideal where these are required.Available as:Wide range of woven and knitted fabrics. Generally the fibre used in garments will be as staple. Though predominantly available as 100% fibre, it can be blended with other fibres such as wool. The majority of application of acrylic fibres in corporate clothing will be as knitwear.ColourationWhite through to black possible. Bleaching acrylic fibres is best carried out using a chlorine dioxide based bleach. Acrylics fibres can be dyed using disperse and basic dyes. Pigment dyed fibres are also available where the pigments are added to the spinning dope prior to fibre extrusion. These will have a uniform colour throughout the fibre cross section. It can be dyed to bright colours with excellent colour fastness.DimensionalStabilityGenerally good. Fabrics produced from acrylic fibres are generally considered to have good dimensional stability, however this will be influenced by the nature of the fabric construction. Loose knits may suffer if hang to dry.Resistanceto pillingPoor resistance. Acrylic fabrics are often susceptible to pilling and suffer from poor abrasion resistance.MoistureregainRapid regain and loss possible. Acrylic fibres show a low level of moisture regain, approximately 2%CareinformationWarm wash or dry-clean. Acrylic garments may be washed or dry-cleaned. Machine washing with a warm water cycle is recommended with the use of a fabric conditioner to reduce static. Acrylic garments can be tumble-dried but this should be carried out at a low temperature setting with the garments being removed as soon as they are dry. Knitted acrylics should be dried flat to prevent the garments becoming misshapen. Drying over radiators is not recommended. When there is a need to iron the garments a moderate heat setting should be used.Applications95% of production into knitwear. Apparel - sweaters, socks, fleece, circular knit apparel, leisurewear.End of lifePossibilitiesNot biodegradable & may generate noxious fumes on burning. Garments made from acrylic fibres can be re-used. The fibres are resistant to biodegradation and therefore disposal to any process reliant on this, is not viable and landfill would be needed. Incineration is a possibility however conditions must be such as to prevent the formation of toxic by-products such as cyanide, from the fibres.Eco aspects Cost scope(economicimpact) Commontrade namesDolan, Dralon, Courtelle, Leacryl, Orlon.AlternativesGenerally used as an alternative to wool.

• Acrylic Fibres - manmade artificial fibres• Acrylic fibres are polymers formed by addition

polymerization of at least 85% by weight of a chemical called acrylonitrile or vinyl chanide. To polymerise vinyl cyanide the double bond between the first two carbon atoms is broken and the molecules attach themselves to each other in a linear chain.

• Acrylic Fibres - manmade artificial fibres• Acrylic fibres are polymers formed by addition

polymerization of at least 85% by weight of a chemical called acrylonitrile or vinyl chanide. To polymerise vinyl cyanide the double bond between the first two carbon atoms is broken and the molecules attach themselves to each other in a linear chain.

• In dry spinning the dissolved polymers are extruded into warm air. The fibers solidify by evaporation. In wet spinning the polymer is dissolved and extruded into a bath and then dried.

• In some ways, acrylic imitates wool. It has wool's warmth and softness, but does not absorb water. Instead, acrylic wicks moisture to the surface where it evaporates.

• Acrylic is used in knitted apparels such as fleece, socks, sportswear and sweaters. It is also used to create fake fur, craft yarns, upholstery fabric, carpet, luggage, awnings, and vehicle covers.

• The acrylic fibers include acrylic, modacrylic, and other vinyl fibers containing cyanide groups as side chains. Among the major acrylic fibers used in commerce, acrylonitrile is the comonomer containing a cyanide group.

• In dry spinning the dissolved polymers are extruded into warm air. The fibers solidify by evaporation. In wet spinning the polymer is dissolved and extruded into a bath and then dried.

• In some ways, acrylic imitates wool. It has wool's warmth and softness, but does not absorb water. Instead, acrylic wicks moisture to the surface where it evaporates.

• Acrylic is used in knitted apparels such as fleece, socks, sportswear and sweaters. It is also used to create fake fur, craft yarns, upholstery fabric, carpet, luggage, awnings, and vehicle covers.

• The acrylic fibers include acrylic, modacrylic, and other vinyl fibers containing cyanide groups as side chains. Among the major acrylic fibers used in commerce, acrylonitrile is the comonomer containing a cyanide group.

• USES• [FOR CLOTHING]

Sweaters, Women's and Children's Wear, Sports Wear, Socks, Knitted Underwear, Pajamas, Gloves, etc

• [FOR HOME FURNISHINGS AND BEDDING]Carpets, A Variety of Rugs, Upholstery, Cushions, Blankets, Pile Sheets, etc.

• [FOR INDUSTRIAL USES]Felts for Paper Making, Filter Cloth, Alternative Asbestos, Tents, Sheet, etc.

• [FOR OTHER USES]Rag Doll, Toys, Auxiliary Tapes for Bags, Braids, Cloth for Bags, Wigs, etc.

• 2. FEATURES

• The history of acrylic - By Alternative Plastics Ltd• It’s 1893: French chemist Charles Moureu has just discovered acrylonitrile. He doesn’t know what

to do with it, nor that his name will be forever linked with the modern phenomenon that is acrylic.• By 2001, more than 4 million tonnes of acrylonitrile (a petrochemical) were being produced all

over the world. But when Moureu made his discovery public, it was quite a while before acrylonitrile was put to use in the first synthetic rubbers. The World War slowed down progress even more, and it wasn’t until a few years later that scientists started finding new applications for this acrylic fibre. And when it came to applications, it seemed that the possibilities were endless.

• Formed by dry or wet spinning of the acrylonitrile, acrylic textiles were being manufactured by 1950, and – being resistant to bobbling, soft to touch and colour-fast – are still popular today in various forms. Acrylic textiles are often made to mimic wool or cashmere, without the same drawbacks.

• Polymethyl Methacrylate was one of the earliest commercially produced acrylic substances – an acrylic glass substitute. Created by Otto Rohm and Otto Haas, this ‘acrylic glass’ – they called it Plexiglass – was used to great effect in military bomber planes and aeroplane canopies. Acrylic is typically lighter and stronger than glass, and because it can be melted to join or weld it, it’s a good choice for glass constructions. Today it is used for everything from aquariums to helmet visors, and bullet-proofing to car body panels.

• In the US, researchers at DuPont were also investigating uses of the polymethyl methacrylate. Its ability to contain and direct light made it the perfect choice for fibre-optic instruments. DuPont increased the applications for this type of acrylic when they turned it into hard-wearing, water-resistant acrylic paints and ink, today used by many industrial firms.

• HOME • News • How To Order • Shopping Terms • CONTACT US • LINK • Main properties of acrylic fiber• Main performance: acrylic fiber has many excellent properties, short fiber

leavening, soft, wrinkled, look and feel is very much like wool. Acrylic is the unique characteristics of thermoelastic (shrink), take advantage of this characteristic can be processed bulked yarns. Lightfastness and weatherability of acrylic fiber is one of the best in textile fibers. Acrylic acid is better, more stable to oxidants and organic solvents, poor alkali resistance, when treatment with dilute alkali or ammonia to yellow, to concentrated alkali treatment is being destroyed.

• Related posts:

• ACRYLICMan-made

• Characteristics: Light-weight, soft, warm for winter wearing Fine, soft, lightweight, cotton-like fabrics, which are cool in hot weather Dyes to bright colors with excellent fastness Outstanding wick ability Machine washable, quick drying Resilient; retains shape; resists shrinkage, & wrinkles Flexible aesthetics for wool-like, cotton-like or blended appearance Excellent pleat retention Resistant to moths, oil and chemicals Superior resistance to sunlight degradation Static and pilling can be a problem

• Major End Uses: Apparel - sweaters, socks, fleece, circular knit apparel, sportswear, children's wear Home Fashion - Blankets, throws, upholstery, awnings, outdoor furniture, rugs/floor coverings

Properties of Acrylic Fibres

1. Acrylic has a warm and dry hand like wool. Its density is 1.17 g/cc as compared to 1.32 g/cc of wool. It is about 30% bulkier than wool. It has about 20% greater insulating power than wool.

2. Acrylic has a moisture regain of 1.5-2% at 65% RH and 70 deg F.

3. It has a tenacity of 5 gpd in dry state and 4-8 gpd in wet state.

4. Breaking elongation is 15% ( both states)

5. It has a elastic recovery of 85% after 4% extension when the load is released immediately.

6. It has a good thermal stability. When exposed to temperatures above 175 deg C for prolonged periods some discolouration takes place.

7. Acrylic shrinks by about 1.5% when treated with boiling water for 30 min.

8. It has a good resistance to mineral acids. The resistance to weak alkalies is fairly good, while hot strong alkalies rapidly attack acrylic.

9. Moths, Mildew and insects do not attack Acrylic.

10. It has an outstanding stability towards commonly bleaching agents.

Uses

1. Knit Jersey, Sweater, blankets2. Wrinkle resistant fabrics.3. Pile and Fleece fabrics4. Carpets and rugs.

• Properties of Acrylic Fibres

1. Acrylic has a warm and dry hand like wool. Its density is 1.17 g/cc as compared to 1.32 g/cc of wool. It is about 30% bulkier than wool. It has about 20% greater insulating power than wool.

2. Acrylic has a moisture regain of 1.5-2% at 65% RH and 70 deg F.

3. It has a tenacity of 5 gpd in dry state and 4-8 gpd in wet state.

4. Breaking elongation is 15% ( both states)

5. It has a elastic recovery of 85% after 4% extension when the load is released immediately.

6. It has a good thermal stability. When exposed to temperatures above 175 deg C for prolonged periods some discolouration takes place.

7. Acrylic shrinks by about 1.5% when treated with boiling water for 30 min.

8. It has a good resistance to mineral acids. The resistance to weak alkalies is fairly good, while hot strong alkalies rapidly attack acrylic.

9. Moths, Mildew and insects do not attack Acrylic.

10. It has an outstanding stability towards commonly bleaching agents.

Uses

1. Knit Jersey, Sweater, blankets2. Wrinkle resistant fabrics.3. Pile and Fleece fabrics4. Carpets and rugs.

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• • • • Introduction of Acrylic Fibers | Properties of Acrylic Fiber | Production Process of Acrylic Fiber | Uses of Acrylic Fiber • Print PDF • A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of at least 85% by weight of acrylonitrile units [-CH2-CH(CN)-] (FTC definition). Acrylic fibers are produced by two basic methods of spinning (extrusion), dry and wet. In the dry spinning method, material to be spun is dissolved is a solvent. After extrusion through the spinneret, the solvent is evaporated, producing continuous filaments which later may be cut into staple, if desired. In wet spinning, the spinning solution is extruded into a

liquid coagulating bath to form filaments, which are drawn, dried, and processed.

Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of ~100,000, about 1900 monomer units. To be called acrylic in the U.S, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. The Dupont Corporation created the first acrylic fibers in 1941 and trademarked them under the name "Orlon".•

Raw Material Acrilonitrile is the main main raw material for the manufacture of acrylic fibres. It is made by different methods. In one commercial method, hydrogen cyanide is treated with acetylene:1st Method

• Acetylene + Hydrogen cyanide --> Acrilonitrile

2nd MethodEthylene--Air Oxidation--> Ethylene oxide + HCN--> Ethylene cyanahydrin--Dehydration at 300 deg C (catalyst)--> Acrylonitrile

Production Process of Acrylic FiberThe acrylic process is a "one step technology", with the following main characteristics:

• polymerization in solution • direct feeding of the dope to spinning • wet spinning • DMF as solvent for both polymerization and spinning • Production Process of Acrylic Fiber• In a continuous polymerisation process, 95% acrylonitrile and 6% methyl acrylate (400 parts) 0.25% aqueous solution of K2S2O8(600 parts), 0.50 % Na2S2O5 solution ( 600 Parts) and 2N sulphuric acid (2.5 Parts) are fed into the reaction vessel at 52 deg C under nitrogen atmosphere giving a slurry with 67% polymer. The slurry is continuously withdrawn, filtered and washed till it is free from salts and dried.•

• Acrilonitrile is dry spun. The material is dissolved in dimethyl formamide, the solution contains 10-20 polymers. It is heated and extruded into a heated spinning cell. A heated evaporating medium such as air, nitrogen or steam moves counter current to the travel of filaments and removes the solvent to take it to a recovery unit. The filaments are hot stretched at 100 to 250 C depending on the time of contact in the hot zone, to several times their original length. •

• Properties of Acrylic Fibers• 1. Acrylic has a warm and dry hand like wool. Its density is 1.17 g/cc as compared to 1.32 g/cc of wool. It is about 30% bulkier than wool. It has about 20% greater insulating power than wool.• 2. Acrylic has a moisture regain of 1.5-2% at 65% RH and 70 deg F.• 3. It has a tenacity of 5 gpd in dry state and 4-8 gpd in wet state.• 4. Breaking elongation is 15% ( both states)• 5. It has a elastic recovery of 85% after 4% extension when the load is released immediately.• 6. It has a good thermal stability. When exposed to temperatures above 175 deg C for prolonged periods some discolouration takes place.• 7. Acrylic shrinks by about 1.5% when treated with boiling water for 30 min. • 8. It has a good resistance to mineral acids. The resistance to weak alkalies is fairly good, while hot strong alkalies rapidly attack acrylic.• 9. Moths, Mildew and insects do not attack Acrylic.• 10. It has an outstanding stability towards commonly bleaching agents.•

• Uses of Acrylic Fiber• 1. Knit Jersey, Sweater, blankets• 2. Wrinkle resistant fabrics.• 3. Pile and Fleece fabrics• 4. Carpets and rugs. •

• Precaution of Acrylic Fiber • Wash delicate items by hand in warm water. Static electricity may be reduced by using a fabric softener in every third or fourth washing. Gently squeeze out water, smooth or shake out garment and let dry on a non-rust hanger. (Sweaters, however, should be dried flat.)  • When machine washing, use warm water and add a fabric softener during the final rinse cycle.  • Machine dry at a low temperature setting. Remove garments from dryer as soon as tumbling cycle is completed.  • If ironing is required, use a moderately warm iron. (For specific instructions, refer to garment's sewn-in care label.) •

• • 1 • About the Author

• I'm Md. Mazharul Islam Kiron from Mymensingh, Bangladesh and student of Textile Engineering. I like to blogging. I also write English articles in Wikipedia. My user page in Wikipedia is kironbd07.Find Me on Facebook @ mikironFollow Me on Twitter @ Kiron07

•

• • Related Posts• Definition and Classification of Textile Neps | Count of Neps• Define Jute Fiber | Chemical Composition of Jute Fiber | Defects in Jute• Rayon Fiber | Characteristics of Rayon Fiber | Manufacturing Process of Viscose Rayon | End Uses of Rayon Fiber• Introduction of Glass Fiber | Types of Glass Fiber | Properties of Glass Fiber | Manufacturing Processes of Glass Fiber | Uses of Glass Fiber or Glass Yarn• Carbon Fiber | Characteristics/Properties of Carbon Fibers | Classification of Carbon Fiber | Application/Uses of Carbon Fibers•

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• includes...

What is Textile Fiber?Textile fibers are the materials at natural or artificials...

Properties of Textile FiberFiber should have some properties to be a textile fiber...

Textile Manufacturing ProcessTextile manufacturing is a complex process. It starts from fiber...

Application of DyesThere are different types of dyes for dyeing textile goods. These dyes...

Different Textile MechineriesIn normal concept "Engineering" means gathering of different kinds...

Textile Ebooks for Textile StudentsNow I will give several download links of famous textile books for B.Sc. in Textile Engineering Students...

Textile CalculationCalculate the length of a package of 80/1 and cone weight 2.083 lb...

• • • • Introduction of Acrylic Fibers | Properties of Acrylic Fiber | Production Process of Acrylic Fiber | Uses of Acrylic Fiber • Print PDF • A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of at least 85% by weight of acrylonitrile units [-CH2-CH(CN)-] (FTC definition). Acrylic fibers are produced by two basic methods of spinning (extrusion), dry and wet. In the dry spinning method, material to be spun is dissolved is a solvent. After extrusion through the spinneret, the solvent is evaporated, producing continuous filaments which later may be cut into staple, if desired. In wet spinning, the spinning solution is extruded into a

liquid coagulating bath to form filaments, which are drawn, dried, and processed.

Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of ~100,000, about 1900 monomer units. To be called acrylic in the U.S, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. The Dupont Corporation created the first acrylic fibers in 1941 and trademarked them under the name "Orlon".•

Raw Material Acrilonitrile is the main main raw material for the manufacture of acrylic fibres. It is made by different methods. In one commercial method, hydrogen cyanide is treated with acetylene:1st Method

• Acetylene + Hydrogen cyanide --> Acrilonitrile

2nd MethodEthylene--Air Oxidation--> Ethylene oxide + HCN--> Ethylene cyanahydrin--Dehydration at 300 deg C (catalyst)--> Acrylonitrile

Production Process of Acrylic FiberThe acrylic process is a "one step technology", with the following main characteristics:

• polymerization in solution • direct feeding of the dope to spinning • wet spinning • DMF as solvent for both polymerization and spinning • Production Process of Acrylic Fiber• In a continuous polymerisation process, 95% acrylonitrile and 6% methyl acrylate (400 parts) 0.25% aqueous solution of K2S2O8(600 parts), 0.50 % Na2S2O5 solution ( 600 Parts) and 2N sulphuric acid (2.5 Parts) are fed into the reaction vessel at 52 deg C under nitrogen atmosphere giving a slurry with 67% polymer. The slurry is continuously withdrawn, filtered and washed till it is free from salts and dried.•

• Acrilonitrile is dry spun. The material is dissolved in dimethyl formamide, the solution contains 10-20 polymers. It is heated and extruded into a heated spinning cell. A heated evaporating medium such as air, nitrogen or steam moves counter current to the travel of filaments and removes the solvent to take it to a recovery unit. The filaments are hot stretched at 100 to 250 C depending on the time of contact in the hot zone, to several times their original length. •

• Properties of Acrylic Fibers• 1. Acrylic has a warm and dry hand like wool. Its density is 1.17 g/cc as compared to 1.32 g/cc of wool. It is about 30% bulkier than wool. It has about 20% greater insulating power than wool.• 2. Acrylic has a moisture regain of 1.5-2% at 65% RH and 70 deg F.• 3. It has a tenacity of 5 gpd in dry state and 4-8 gpd in wet state.• 4. Breaking elongation is 15% ( both states)• 5. It has a elastic recovery of 85% after 4% extension when the load is released immediately.• 6. It has a good thermal stability. When exposed to temperatures above 175 deg C for prolonged periods some discolouration takes place.• 7. Acrylic shrinks by about 1.5% when treated with boiling water for 30 min. • 8. It has a good resistance to mineral acids. The resistance to weak alkalies is fairly good, while hot strong alkalies rapidly attack acrylic.• 9. Moths, Mildew and insects do not attack Acrylic.• 10. It has an outstanding stability towards commonly bleaching agents.•

• Uses of Acrylic Fiber• 1. Knit Jersey, Sweater, blankets• 2. Wrinkle resistant fabrics.• 3. Pile and Fleece fabrics• 4. Carpets and rugs. •

• Precaution of Acrylic Fiber • Wash delicate items by hand in warm water. Static electricity may be reduced by using a fabric softener in every third or fourth washing. Gently squeeze out water, smooth or shake out garment and let dry on a non-rust hanger. (Sweaters, however, should be dried flat.)  • When machine washing, use warm water and add a fabric softener during the final rinse cycle.  • Machine dry at a low temperature setting. Remove garments from dryer as soon as tumbling cycle is completed.  • If ironing is required, use a moderately warm iron. (For specific instructions, refer to garment's sewn-in care label.) •

• • 1 • About the Author

• I'm Md. Mazharul Islam Kiron from Mymensingh, Bangladesh and student of Textile Engineering. I like to blogging. I also write English articles in Wikipedia. My user page in Wikipedia is kironbd07.Find Me on Facebook @ mikironFollow Me on Twitter @ Kiron07

•

• • Related Posts• Definition and Classification of Textile Neps | Count of Neps• Define Jute Fiber | Chemical Composition of Jute Fiber | Defects in Jute• Rayon Fiber | Characteristics of Rayon Fiber | Manufacturing Process of Viscose Rayon | End Uses of Rayon Fiber• Introduction of Glass Fiber | Types of Glass Fiber | Properties of Glass Fiber | Manufacturing Processes of Glass Fiber | Uses of Glass Fiber or Glass Yarn• Carbon Fiber | Characteristics/Properties of Carbon Fibers | Classification of Carbon Fiber | Application/Uses of Carbon Fibers•

• 6 comments: • • RESHMA SUBBIAH said...

– its not useful at all........boring......– June 22, 2011 9:03 PM

• • Anonymous said...

– :a :b :c :d :e :f :g :h :i– June 26, 2011 2:56 PM

• • Anonymous said...

– hey hnks 4 info– June 26, 2011 2:57 PM

• • Anonymous said...

– hey thanx alot!!!!!!!!!!:a– July 2, 2011 10:31 PM

• • Anonymous said...

– thanks budy.....– August 9, 2011 11:10 PM

• • Anonymous said...

– nice– June 20, 2012 1:05 PM

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Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKnw2AUw

In a continuous polymerisation process, 95% acrylonitrile and 6% methyl acrylate (400 parts) 0.25% aqueous solution of K2S2O8(600 parts), 0.50 % Na2S2O5 solution ( 600 Parts) and 2N sulphuric acid (2.5 Parts) are fed into the reaction vessel at 52 deg C under nitrogen atmosphere giving a slurry with 67% polymer. The slurry is continuously withdrawn, filtered and washed till it is free from salts and dried.

Acrilonitrile is dry spun. The material is dissolved in dimethyl formamide, the solution contains 10-20 polymers. It is heated and extruded into a heated spinning cell. A heated evaporating medium such as air, nitrogen or steam moves counter current to the travel of filaments and removes the solvent to take it to a recovery unit. The filaments are hot stretched at 100 to 250 C depending on the time of contact in the hot zone, to several times their original length.

Properties of Acrylic Fibers1. Acrylic has a warm and dry hand like wool. Its density is 1.17 g/cc as compared to 1.32 g/cc of wool. It is about 30% bulkier than wool. It has about 20% greater insulating power than wool.2. Acrylic has a moisture regain of 1.5-2% at 65% RH and 70 deg F.3. It has a tenacity of 5 gpd in dry state and 4-8 gpd in wet state.4. Breaking elongation is 15% ( both states)5. It has a elastic recovery of 85% after 4% extension when the load is released immediately.6. It has a good thermal stability. When exposed to temperatures above 175 deg C for prolonged periods some discolouration takes place.7. Acrylic shrinks by about 1.5% when treated with boiling water for 30 min. 8. It has a good resistance to mineral acids. The resistance to weak alkalies is fairly good, while hot strong alkalies rapidly attack acrylic.9. Moths, Mildew and insects do not attack Acrylic.10. It has an outstanding stability towards commonly bleaching agents.

Uses of Acrylic Fiber1. Knit Jersey, Sweater, blankets2. Wrinkle resistant fabrics.3. Pile and Fleece fabrics4. Carpets and rugs.

Precaution of Acrylic Fiber •Wash delicate items by hand in warm water. Static electricity may be reduced by using a fabric softener in every third or fourth washing. Gently squeeze out water, smooth or shake out garment and let dry on a non-rust hanger. (Sweaters, however, should be dried flat.)  •When machine washing, use warm water and add a fabric softener during the final rinse cycle.  •Machine dry at a low temperature setting. Remove garments from dryer as soon as tumbling cycle is completed.  •If ironing is required, use a moderately warm iron. (For specific instructions, refer to garment's sewn-in care label.)

                                                                1

        About the Author

I'm Md. Mazharul Islam Kiron from Mymensingh, Bangladesh and student of Textile Engineering. I like to blogging. I also write English articles in Wikipedia. My user page in Wikipedia is kironbd07.Find Me on Facebook @ mikironFollow Me on Twitter @ Kiron07

Related Posts•Definition and Classification of Textile Neps | Count of Neps

•Define Jute Fiber | Chemical Composition of Jute Fiber | Defects in Jute•Rayon Fiber | Characteristics of Rayon Fiber | Manufacturing Process of Viscose Rayon | End Uses of Rayon Fiber•Introduction of Glass Fiber | Types of Glass Fiber | Properties of Glass Fiber | Manufacturing Processes of Glass Fiber | Uses of Glass Fiber or Glass Yarn•Carbon Fiber | Characteristics/Properties of Carbon Fibers | Classification of Carbon Fiber | Application/Uses of Carbon Fibers                               6 comments:

     RESHMA SUBBIAH said...       

its not useful at all........boring......June 22, 2011 9:03 PM

   Anonymous said...       

:a :b :c :d :e :f :g :h :iJune 26, 2011 2:56 PM

   Anonymous said...       

hey hnks 4 infoJune 26, 2011 2:57 PM

   Anonymous said...       

hey thanx alot!!!!!!!!!!:aJuly 2, 2011 10:31 PM

   Anonymous said...       

thanks budy.....August 9, 2011 11:10 PM

   Anonymous said...       

niceJune 20, 2012 1:05 PM

Your feedback is always appreciated. If you have any question or opinion, you can give comment below. I will try to reply to your queries as soon as time allows.

Note: Please do not spam.

Search This Blog

• HYDROLON• Hydrolon- a product of Pasupati Acrylon is a specialty fiber developed after years of

in-house Research & Development and has acquired a special position in the field of textile applications due to its unique features.

• Hydrolon provides excellent capillary action which transfers the moisture to garments surface enabling it to dry quickly.

• Properties of Hydrolon • • cotton like water absorption.

• Quick drying• Soft,supple & lofty handle.• Lightweight.• Easy dyeing & excellent fastness.• Comfortable fabric breathing property• Easy care• Good wash-n-wear quality

• Hydrolon is most suitable for apparel wear, sport wear, polo-shits, T-shirts, summer & spring wear, socks, towels, bath-mats, bed-spreads etc.

• By virtue of its cotton like excellent moisture absorption properties, this product has gained wide acceptance in domestic as well as international markets and it is being regularly exported to countries like Israel etc.

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• • • • Introduction of Acrylic Fibers | Properties of Acrylic Fiber | Production Process of Acrylic Fiber | Uses of Acrylic Fiber • Print PDF • A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of at least 85% by weight of acrylonitrile units [-CH2-CH(CN)-] (FTC definition). Acrylic fibers are produced by two basic methods of

spinning (extrusion), dry and wet. In the dry spinning method, material to be spun is dissolved is a solvent. After extrusion through the spinneret, the solvent is evaporated, producing continuous filaments which later may be cut into staple, if desired. In wet spinning, the spinning solution is extruded into aliquid coagulating bath to form filaments, which are drawn, dried, and processed.

Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of ~100,000, about 1900 monomer units. To be called acrylic in the U.S, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. The Dupont Corporation created the first acrylic fibers in 1941 and trademarked them under the name "Orlon".

•Raw Material Acrilonitrile is the main main raw material for the manufacture of acrylic fibres. It is made by different methods. In one commercial method, hydrogen cyanide is treated with acetylene:1st Method

• Acetylene + Hydrogen cyanide --> Acrilonitrile

2nd MethodEthylene--Air Oxidation--> Ethylene oxide + HCN--> Ethylene cyanahydrin--Dehydration at 300 deg C (catalyst)--> Acrylonitrile

•Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKokkwji

• A manufactured fiber in which the fiber-forming substance is any long chain synthetic polymer composed of at least 85% by weight of acrylonitrile units [-CH2-CH(CN)-] (FTC definition). Acrylic fibers are produced by two basic methods of spinning (extrusion), dry and wet. In the dry spinning method, material to be spun is dissolved is a solvent. After extrusion through the spinneret, the solvent is evaporated, producing continuous filaments which later may be cut into staple, if desired. In wet spinning, the spinning solution is extruded into aliquid coagulating bath to form filaments, which are drawn, dried, and processed.

Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of ~100,000, about 1900 monomer units. To be called acrylic in the U.S, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. The Dupont Corporation created the first acrylic fibers in 1941 and trademarked them under the name "Orlon".

•

Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKpJs9LQ

• Raw Material Acrilonitrile is the main main raw material for the manufacture of acrylic fibres. It is made by different methods. In one commercial method, hydrogen cyanide is treated with acetylene:1st Method

• Acetylene + Hydrogen cyanide --> Acrilonitrile

2nd MethodEthylene--Air Oxidation--> Ethylene oxide + HCN--> Ethylene cyanahydrin--Dehydration at 300 deg C (catalyst)--> Acrylonitrile

Production Process of Acrylic FiberThe acrylic process is a "one step technology", with the following main characteristics:

• polymerization in solution • direct feeding of the dope to spinning • wet spinning • DMF as solvent for both polymerization and spinning • •

Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKpTpFzD

• MF as solvent for both polymerization and spinning

• Production Process of Acrylic Fiber•

Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKpkaicn

• MF as solvent for both polymerization and spinning

• Production Process of Acrylic Fiber•

Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKpkaicn

• Production Process of Acrylic FiberIn a continuous polymerisation process, 95% acrylonitrile and 6% methyl acrylate (400 parts) 0.25% aqueous solution of K2S2O8(600 parts), 0.50 % Na2S2O5 solution ( 600 Parts) and 2N sulphuric acid (2.5 Parts) are fed into the reaction vessel at 52 deg C under nitrogen atmosphere giving a slurry with 67% polymer. The slurry is continuously withdrawn, filtered and washed till it is free from salts and dried.

•

• Acrilonitrile is dry spun. The material is dissolved in dimethyl formamide, the solution contains 10-20 polymers. It is heated and extruded into a heated spinning cell. A heated evaporating medium such as air, nitrogen or steam moves counter current to the travel of filaments and removes the solvent to take it to a recovery unit. The filaments are hot stretched at 100 to 250 C depending on the time of contact in the hot zone, to several times their original length.

•Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKqgvl8s

• Properties of Acrylic Fibers• 1. Acrylic has a warm and dry hand like wool. Its density is 1.17 g/cc as compared to 1.32 g/cc of wool. It is about 30% bulkier than wool.

It has about 20% greater insulating power than wool.• 2. Acrylic has a moisture regain of 1.5-2% at 65% RH and 70 deg F.• 3. It has a tenacity of 5 gpd in dry state and 4-8 gpd in wet state.• 4. Breaking elongation is 15% ( both states)• 5. It has a elastic recovery of 85% after 4% extension when the load is released immediately.• 6. It has a good thermal stability. When exposed to temperatures above 175 deg C for prolonged periods some discolouration takes

place.• 7. Acrylic shrinks by about 1.5% when treated with boiling water for 30 min. • 8. It has a good resistance to mineral acids. The resistance to weak alkalies is fairly good, while hot strong alkalies rapidly attack acrylic.• 9. Moths, Mildew and insects do not attack Acrylic.• 10. It has an outstanding stability towards commonly bleaching agents.•

• Uses of Acrylic Fiber• 1. Knit Jersey, Sweater, blankets• 2. Wrinkle resistant fabrics.• 3. Pile and Fleece fabrics• 4. Carpets and rugs. •

• Precaution of Acrylic Fiber • Wash delicate items by hand in warm water. Static electricity may be reduced by using a fabric softener in every third or fourth washing.

Gently squeeze out water, smooth or shake out garment and let dry on a non-rust hanger. (Sweaters, however, should be dried flat.)  • When machine washing, use warm water and add a fabric softener during the final rinse cycle.  • Machine dry at a low temperature setting. Remove garments from dryer as soon as tumbling cycle is completed.  • If ironing is required, use a moderately warm iron. (For specific instructions, refer to garment's sewn-in care label.) •

Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKqsOLNy

• Uses Craft yarns, asbestos replacement, concrete and stucco reinforcement, awnings, boat and vehicle covers, and luggage are just a few of the other end uses of acrylic. Caring for Acrylic As with any fiber or fabric, it is best to follow the care label carefully. Acrylic fibers vary with construction and require different care. However, acrylic generally has a strong resistance to most chemicals and has good wash-and-wear characteristics. Some acrylics can be dry cleaned, but finishes may be removed, and a rough feel may result.1 Other tips for caring for acrylic are: -Wash delicate items by hand in warm water 2 -Use warm water when machine washing and add fabric softener to the final rinse 2 -Machine dry at a low temperature and remove promptly 2 -If ironing is required, use a moderately warm iron 2 Acrylic in Disguise As the demand for acrylic increases, so does the number of trade names for which acrylic is most known. Pil-Trol is just one of the many trade names of acrylic and was developed by Monsanto Chemical Company. Pil-Trol allows for the comfort and easy care of acrylic without the pilling. Pills are the little balls that form on fabric when fiber ends break and migrate to the surface.

•

• Uses of Acrylic Fiber• 1. Knit Jersey, Sweater, blankets• 2. Wrinkle resistant fabrics.• 3. Pile and Fleece fabrics

• 4. Carpets and rugs.

•Acrylic is used in knitted apparels such as fleece,• socks, sportswear and sweaters. It is also used to create• fake fur, craft yarns, upholstery fabric, carpet, luggage, awnings, and• vehicle covers.

• History History of Acrylic Acrylic was developed by DuPont in 1944 and was first commercially produced in 1950. Acrylonitrile, the substance from which acrylic fibers are produced, was first made in 1893 in Germany and was used as another chemical in research for the DuPont Company. First used for outdoor purposes, technology has allowed acrylic to come a long way, and it is now most commonly used in apparel and carpets. DuPont ceased production of acrylic in 1991, and only a handful of companies produce acrylic today. Definition of Acrylic Acrylic is defined as a manufactured fiber in which the fiber forming substance is any long-chain synthetic polymer composed of at least 85% by weight of acrylonitrile units. Acrylic fibers create a fine, soft and luxurious fabric with the bulk and hand of wool. Production of Acrylic Acrylic fibers are produced from a petrochemical called acrylontrile and are dry spun or wet spun. In dry spinning, the polymers are dissolved in a suitable solvent, extruded into warm air, and solidified by the evaporation of the solvent. "After spinning, the fibers are stretched hot, three to ten times their original length, and then crimped, and marketed as cut staple or tow. In wet spinning, the polymer is dissolved in solvent, extruded into a coagulating bath, dried, crimped, and collected as tow . . . or cut into staple."1 Acrylic fibers are usually modified to create special properties best suited for their end-uses and are unique because of their uneven surface. Characteristics Characteristics of Acrylic Acrylic has many appealing properties, and the sports world is just one industry that is increasingly taking advantage of them. Acrylic's high performance is making it one of the fastest growing fibers in the outdoor, performance apparel categories. For example, the NBA and NFL have made acrylic socks part of their official uniforms. Athletes of all types are using acrylic because of its elasticity, shape retention, and moisture control. This fiber draws moisture away form the skin and quickly transports it to the surface making the wearer more comfortable. This wicking capability of acrylic is permanent and in a class by itself compared to other fibers. Other characteristics of acrylic include: quick drying time excellent color fastness UV resistance soft hand luxurious touch & drape warmth in thermal constructions easy care bulk without extra weight resistance to weathering durability resilience shape retention stain resistance wrinkle resistance and resistance to shrinking, fading, aging, chemicals, oils, moths, mildew, and fungus End Uses of Acrylic Acrylic not only has many appealing characteristics and advantages, but many apparel, home furnishings, and industrial end uses as well. This fiber accounted for 5 percent of the fiber produced in the United States in 1990 with only three companies producing it at the time. Acrylic is used in apparel including sweaters, fleece fabrics, and socks and in home furnishings such as furniture, carpet, blankets, and upholstery fabrics. Uses Craft yarns, asbestos replacement, concrete and stucco reinforcement, awnings, boat and vehicle covers, and luggage are just a few of the other end uses of acrylic. Caring for Acrylic As with any fiber or fabric, it is best to follow the care label carefully. Acrylic fibers vary with construction and require different care. However, acrylic generally has a strong resistance to most chemicals and has good wash-and-wear characteristics. Some acrylics can be dry cleaned, but finishes may be removed, and a rough feel may result.1 Other tips for caring for acrylic are: -Wash delicate items by hand in warm water 2 -Use warm water when machine washing and add fabric softener to the final rinse 2 -Machine dry at a low temperature and remove promptly 2 -If ironing is required, use a moderately warm iron 2 Acrylic in Disguise As the demand for acrylic increases, so does the number of trade names for which acrylic is most known. Pil-Trol is just one of the many trade names of acrylic and was developed by Monsanto Chemical Company. Pil-Trol allows for the comfort and easy care of acrylic without the pilling. Pills are the little balls that form on fabric when fiber ends break and migrate to the surface. Advantages/Disadvantages Pilling is a disadvantage of acrylic, but has been eliminated by the technology of Pil-Trol. Other trade names that describe acrylic include: Acrilan Acrilan Plus Biofresh Bounce-Back Creslan CresLoft Duraspun Fi-lana Innova MicroSafe MicroSupreme Salus Sayelle So-Lara Smart Yarns Ware-dated WeatherBloc Wintuck Glossary Polymer - a very large molecule made by connecting many small molecules or mers together Dry Spinning - a fiber forming process in which a solution of polymer dissolved in solvent is extruded Wet Spinning - a fiber forming process in which the polymer is dissolved in a solvent and the solutions extruded into a chemical bath Staple Fiber - any natural of manufactured fiber produced in or cut to a short length measured in inches or centimeters Tow - a large assembly of filament fibers (extremely long fibers) to facilitate handling and processing during the production of manufactured staple fibers

• Properties of Acrylic Fibers• 1. Acrylic has a warm and dry hand like wool. Its density is 1.17 g/cc as compared to 1.32 g/cc of wool. It is about 30% bulkier than wool.

It has about 20% greater insulating power than wool.• 2. Acrylic has a moisture regain of 1.5-2% at 65% RH and 70 deg F.• 3. It has a tenacity of 5 gpd in dry state and 4-8 gpd in wet state.• 4. Breaking elongation is 15% ( both states)• 5. It has a elastic recovery of 85% after 4% extension when the load is released immediately.• 6. It has a good thermal stability. When exposed to temperatures above 175 deg C for prolonged periods some discolouration takes

place.• 7. Acrylic shrinks by about 1.5% when treated with boiling water for 30 min. • 8. It has a good resistance to mineral acids. The resistance to weak alkalies is fairly good, while hot strong alkalies rapidly attack acrylic.• 9. Moths, Mildew and insects do not attack Acrylic.• 10. It has an outstanding stability towards commonly bleaching agents.•

• Uses of Acrylic Fiber• 1. Knit Jersey, Sweater, blankets• 2. Wrinkle resistant fabrics.• 3. Pile and Fleece fabrics• 4. Carpets and rugs. •

• Precaution of Acrylic Fiber • Wash delicate items by hand in warm water. Static electricity may be reduced by using a fabric softener in every third or fourth washing.

Gently squeeze out water, smooth or shake out garment and let dry on a non-rust hanger. (Sweaters, however, should be dried flat.)  • When machine washing, use warm water and add a fabric softener during the final rinse cycle.  • Machine dry at a low temperature setting. Remove garments from dryer as soon as tumbling cycle is completed.  • If ironing is required, use a moderately warm iron. (For specific instructions, refer to garment's sewn-in care label.) •

Read more: http://textilelearner.blogspot.com/2011/03/defination-production-properties-and_5024.html#ixzz1yKqsOLNy

• Acrylic can be thought of as artificial wool. It is made from the unlikely combination of coal, air, water, oil and limestone. DuPont first made acrylic fibers in 1944 and began commercial production in 1950. It is spun by either dry spinning or wet spinning. In dry spinning the dissolved polymers are extruded into warm air. The fibers solidify by evaporation. In wet spinning the polymer is dissolved and extruded into a bath and then dried.  

• Properties and Uses In some ways, acrylic imitates wool. It has wool's warmth and softness, but does not absorb water. Instead, acrylic wicks moisture to the surface where it evaporates. Acrylic is used in knitted apparels such as fleece, socks, sportswear and sweaters. It is also used to create fake fur, craft yarns, upholstery fabric, carpet, luggage, awnings, and vehicle covers.

• Acrylic Fiber              • Acrylic Tow Fiber

Acrylic Staple Fiber• First U.S. Commercial Acrylic Fiber Production: 1950, DuPont Company• Current U.S. Acrylic Fiber Producers: Sterling Fibers• Federal Trade Commission Definition for Acrylic Fiber: A manufactured

fiber in which the fiberforming substance is any long-chain synthetic polymer composed of at least 85% by weight of acrylonitrile units (-CH2-CH[CN]-)x. (Complete FTC Fiber Rules here.)

• Basic Principles of Acrylic Fiber Production — Acrylic fibers are produced from acrylonitrile, a petrochemical. The acrylonitrile is usually combined with small amounts of other chemicals to improve the ability of the resulting fiber to absorb dyes. Some acrylic fibers are dry spun and others are wet spun. Acrylic fibers are used in staple or tow form. For a detailed production flowchart (wet and dry spun), go here.

• Acrylic fibers are modified to give special properties best suited for particular end-uses. They are unique among synthetic fibers because they have an uneven surface, even when extruded from a round-hole spinneret.

• Acrylic Fiber Characteristics– Outstanding wickability & quick drying to move moisture from body surface – Flexible aesthetics for wool-like, cotton-like, or blended appearance – Easily washed, retains shape – Resistant to moths, oil, and chemicals – Dyeable to bright shades with excellent fastness – Superior resistance to sunlight degradation

• Some Major Acrylic Fiber Uses• Apparel: Sweaters, socks, fleece wear, circular knit apparel, sportswear and childrens wear • Home Furnishings: Blankets, area rugs, upholstery, pile; luggage, awnings, outdoor furniture • Other Uses: Craft yarns, sail cover cloth, wipe cloths • Industrial Uses: Asbestos replacement; concrete and stucco reinforcement •  • General Acrylic Fiber Care Tips

– Wash delicate items by hand in warm water. Static electricity may be reduced by using a fabric softener in every third or fourth washing. Gently squeeze out water, smooth or shake out garment and let dry on a non-rust hanger.       (Sweaters, however, should be dried flat.)

– When machine washing, use warm water and add a fabric softener during the final rinse cycle. – Machine dry at a low temperature setting. Remove garments from dryer as soon as tumbling cycle is completed. – If ironing is required, use a moderately warm iron. (For specific instructions, refer to garment's sewn-in care label.)

• Acrylic Fiber Characteristics– Outstanding wickability & quick drying to move moisture from body surface – Flexible aesthetics for wool-like, cotton-like, or blended appearance – Easily washed, retains shape – Resistant to moths, oil, and chemicals – Dyeable to bright shades with excellent fastness – Superior resistance to sunlight degradation

• Some Major Acrylic Fiber Uses• Apparel: Sweaters, socks, fleece wear, circular knit apparel, sportswear and childrens wear • Home Furnishings: Blankets, area rugs, upholstery, pile; luggage, awnings, outdoor furniture • Other Uses: Craft yarns, sail cover cloth, wipe cloths • Industrial Uses: Asbestos replacement; concrete and stucco reinforcement •  • General Acrylic Fiber Care Tips

– Wash delicate items by hand in warm water. Static electricity may be reduced by using a fabric softener in every third or fourth washing. Gently squeeze out water, smooth or shake out garment and let dry on a non-rust hanger.       (Sweaters, however, should be dried flat.)

– When machine washing, use warm water and add a fabric softener during the final rinse cycle. – Machine dry at a low temperature setting. Remove garments from dryer as soon as tumbling cycle is completed. – If ironing is required, use a moderately warm iron. (For specific instructions, refer to garment's sewn-in care label.)

• Acrylic Fiber• Characteristics of Acrylic Fibre• • BRIGHTNESS

• EASY DYEABILITY • LIGHT WEIGHT • FLUFFY, SOFT AND WARM • LOW PILL FORMATION • DURABLE AND STRONG • LONG LASTING PLEATS AND CREASE RECOVERY • RESISTANCE TO SUNLIGHT AND CHEMICALS • RESISTANCE TO MOTHS AND INSECTS • EASY LAUNDERING AND LOW MAINTENANCE COST • HIGH RESISTANCE TO ABRASION

• ACRYLIC STAPLE FIBER RAW WHITE

• HYDROLON• Hydrolon- a product of Pasupati Acrylon is a specialty fiber developed after years of

in-house Research & Development and has acquired a special position in the field of textile applications due to its unique features.

• Hydrolon provides excellent capillary action which transfers the moisture to garments surface enabling it to dry quickly.

• Properties of Hydrolon • • cotton like water absorption.

• Quick drying• Soft,supple & lofty handle.• Lightweight.• Easy dyeing & excellent fastness.• Comfortable fabric breathing property• Easy care• Good wash-n-wear quality

• Hydrolon is most suitable for apparel wear, sport wear, polo-shits, T-shirts, summer & spring wear, socks, towels, bath-mats, bed-spreads etc.

• By virtue of its cotton like excellent moisture absorption properties, this product has gained wide acceptance in domestic as well as international markets and it is being regularly exported to countries like Israel etc.