Fibrous Assemblies. Now What? At this point the only choices we have to use what we made by both types of spinning –Monofilament –Sewing thread So we.

Fibrous AssembliesFibrous Assemblies

Now What?

• At this point the only choices we have to use what we made by both types of spinning– Monofilament– Sewing thread

• So we move up to the next level

Woven Fabrics

• Woven fabric– formed by interlacing

two distinct sets of yarns

• warp – yarns running the length of the fabric, machine direction

• weft/filling – yarns running width of fabric, cross direction

Woven Fabrics (2)

• Plain weave– tightest, strongest– every end interlaces

with every pick

• Matte weave– good tear and burst

resistance– ends and picks

interlace as groups

Woven Fabrics (3)• Twill weave

– diagonal appearance– good tear strength

• Satin weave– excellent tear strength– good openness– common fabric structure in

composites

Woven Fabrics (4)

• Pile weaves– 3-D structure

• Leno weaves– open– stable

Knitted Fabrics

• Two categories– weft knitted

• high extensibility widthwise• tubing, hosiery

– warp knitted• high dimensional stability• meshes

Weft Knitted Fabrics

• Plain knitted– good widthwise (2x)

and lengthwise (1.5x) extension

• Rib knitted– high widthwise (4x) and

good lengthwise (1.5x) extension

Warp Knitted-Meshes and Nets

Braids

• Diagonally interlaced– strong– torque balanced– sutures– artificial tendons

Nonconventional

• Nonwovens– barriers, suture

buttresses, sponges and absorbents, disposables

• Laminates– barriers, protective

materials