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Fibrous Assemblies Fibrous Assemblies

Fibrous Assemblies

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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 move up to the next level. Woven Fabrics. Woven fabric formed by interlacing two distinct sets of yarns - PowerPoint PPT Presentation

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Page 1: Fibrous Assemblies

Fibrous AssembliesFibrous Assemblies

Page 2: 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 move up to the next level

Page 3: Fibrous Assemblies

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

Page 4: Fibrous Assemblies

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

Page 5: Fibrous Assemblies

Woven Fabrics (3)• Twill weave

– diagonal appearance– good tear strength

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

composites

Page 6: Fibrous Assemblies

Woven Fabrics (4)

• Pile weaves– 3-D structure

• Leno weaves– open– stable

Page 7: Fibrous Assemblies

Knitted Fabrics

• Two categories– weft knitted

• high extensibility widthwise• tubing, hosiery

– warp knitted• high dimensional stability• meshes

Page 8: Fibrous Assemblies

Weft Knitted Fabrics

• Plain knitted– good widthwise (2x)

and lengthwise (1.5x) extension

• Rib knitted– high widthwise (4x) and

good lengthwise (1.5x) extension

Page 9: Fibrous Assemblies

Warp Knitted-Meshes and Nets

Page 10: Fibrous Assemblies

Braids

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

Page 11: Fibrous Assemblies

Nonconventional• Nonwovens

– barriers, suture buttresses, sponges and absorbents, disposables

• Laminates– barriers, protective

materials