A,t;(le Effect of Katha leaves dye on VAS sheep breed wool Collection and processing of wool Atriple crossed UASsheep breed wool was collected from poultry, sheep and goat farm, MainAgricultural Research Station, UAS, Dharwad.Leaves were collected from the Department of Forestry, UAS,Dharwad andthese were shade dried and crushed into fine pieces and used as a dye material for their process. A RashmP, Geeta Mahale* 1, R K Sunanda1 and M Javed2 lDepartment of Textiles and Apparel Designing, Collegeof Rural Home Science, UAS,Dharwad-580 005, Karnataka 2Department of AnimalNutrition, UAS,Dharwad-580 005, Kamataka *Correspondent author, E-mail: [email protected]I June hence leaves are left unused. In the search of new sources of natural dye for wool, authors have attempted extraction of dye from leaves of this tree and examined its effect on yam properties of UASsheep breed wool. The present trend towards revival of natural dyes has encouraged researchers to develop variety of natural dyes from various plants for different fabrics. Among such natural dyes is the Acacia catechu Linn. which is a good source of tannin, gum, timber, fuel and fodder also. The leaves of the tree are also rich in tannin but are left unused. Hence, an attempt was made to dye the UASsheep breed wool (off white colour) with a dye extracted from leaves and dyed samples were assessed for their physical parameters. Keywords: Acacia catechu, Katha, Cutch Tree, Dye, UASsheep wool. IPe code; Int. d. 7_ C09B 61/00, D06p 1/34, D06p 3/14 Abstract Introduction of the wool usually affects. The absorption of dye molecules depends on the polarity In India sheep plays pivotal role of its polymer and its amorphous nature. in the rural agrarian economy. Millions The present trend towards revival of small and marginal farmers and . of natural dyes has encouraged landless labourers are solely dependent researchers to develop variety of natural on sheep production for earning their dyes from various plants for different livelihood. A variety of products are fabrics. Among such natural dyes is the produced from the sheep farming industry Katha obtained from heartwood of Cutch ranging from wool and woolen products, Tree, Acacia catechu Linn. (Hindi- leather and leather products, meat and Khair), used in Pan preparation and for meat products and as manure and milk printing and dyeing purposes. The plant to limited extent. is also a rich source of tannin, gum, This UASsheep wool fibre may timber, fuel and fodder. The chief vary from off white to light cream in constituents are catechin and colour. The variation in colour is due to catechutannic acid and toxifolin. Catechin act of chromophores. The wool polymer is biologically higWyactive and is used as is chemicallyvery sensitiveto atmospheric a haemostatic. Toxifolinhas antibacterial, oxygen and oil pollutants. Since the antifungal,antiviral,anti-intlammatoryand amorphous processing of wool involves antioxidant properties. chemicals and machineries, the strength The tree is leafless during May- Natural Product Radiance Vol 3(6) November-December 2004
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Effect of Katha leaves dye on VAS sheep breed wool
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A,t;(le
Effect of Katha leaves dye on VAS sheep breed wool
Collection and processing ofwool
Atriple crossed UASsheep breed
wool was collected from poultry, sheepand goat farm, MainAgriculturalResearchStation, UAS, Dharwad.Leaves were
collected from the Department of Forestry,UAS,Dharwad and these were shade dried
and crushed into fine pieces and used as
a dye material for their process.
A RashmP, Geeta Mahale* 1, R K Sunanda1 and MJaved2
lDepartment of Textilesand Apparel Designing,College of Rural Home Science, UAS,Dharwad-580 005, Karnataka
2Department of AnimalNutrition, UAS,Dharwad-580 005, Kamataka
search of new sources of natural dye forwool, authors have attempted extraction
of dye from leaves of this tree and
examined its effect on yam properties of
UASsheep breed wool.
The present trend towards revival of natural dyes has encouraged
researchers to develop variety of natural dyes from various plants for different
fabrics. Among such natural dyes is the Acacia catechu Linn. which is a goodsource of tannin, gum, timber, fuel and fodder also. The leaves of the tree are
also rich in tannin but are left unused. Hence, an attempt was made to dye the
UASsheep breed wool (off white colour) with a dye extracted from leaves anddyed samples were assessed for their physical parameters.
IPe code; Int. d. 7_ C09B61/00, D06p 1/34, D06p 3/14
Abstract
Introduction of the wool usually affects.Theabsorption
of dye molecules depends on the polarity
In India sheep plays pivotal role of its polymer and its amorphous nature.
in the rural agrarian economy. Millions Thepresent trend towards revival
of small and marginal farmers and . of natural dyes has encouragedlandless labourers are solely dependent researchers to develop variety of natural
on sheep production for earning their dyes from various plants for different
livelihood. A variety of products are fabrics. Among such natural dyes is the
produced from the sheep farmingindustry Katha obtained from heartwood of Cutchranging from wool and woolen products, Tree,Acacia catechu Linn. (Hindi
leather and leather products, meat and Khair), used in Pan preparation and formeat products and as manure and milk printing and dyeing purposes. The plantto limited extent. is also a rich source of tannin, gum,
This UASsheep wool fibre may timber, fuel and fodder. The chief
vary from off white to light cream in constituents are catechin andcolour. The variation in colour is due to catechutannic acid and toxifolin.Catechin
act of chromophores. The wool polymer is biologicallyhigWyactive and is used as
is chemicallyverysensitiveto atmospheric a haemostatic. Toxifolinhas antibacterial,oxygen and oil pollutants. Since the antifungal,antiviral,anti-intlammatoryand
amorphous processing of wool involves antioxidant properties.
chemicals and machineries, the strength The tree is leafless during May-