Fibres & fabrics- properties and characteristics Flashcards Preview

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Flashcards in Fibres & fabrics- properties and characteristics Deck (32):
1

Give examples of natural fibres

cotton, wool, flax, silk

2

Give an example of regenerated fibres

viscose

3

Give examples of synthetic fibres

polyester, elastomeric, viscose, acrylic, nylon

4

Cotton properties and uses

Properties: cool to wear, soft handle, good drape, very absorbent
Uses: jeans, t-shirts, towels

5

Wool properties and uses

Properties: warm, absorbent, not durable, creases, can shrink
Uses: jumpers, suits and blankets

6

Flax properties and uses

Properties: warm, absorbent, durable
Uses: tea towels, tablecloths

7

Silk properties and uses

Properties: soft, warm, good drape and absorbent
Uses: evening wear, ties

8

What are combination fabrics?

They can be layered and combined to improve the handle, appearance, performance. Like lining and interfacing

9

Examples of combination fabrics

- Interfacing (to stiffen and strengthen collar or cuffs)
- Quilt (add warmth)
- Gore tex (breathable and waterproof)
- Kevlar (high strength used in bulletproof vests)
- Thinsulate (good insulator and moisture resistant)

10

What are examples of constructed fabrics?

woven fabrics, knitted fabrics, non-woven fabrics,

11

Types of weaves

Plain weave
twill weave
satin weave

12

What is a plain weave?

warp and weft are aligned forming criss cross pattern
Uses- strong and hardwearing furnishings

13

define Weft

Yarn going horizontally of fabric

14

define Warp

Yarn going vertically of fabric

15

define Selvedge

Side where wefts are double backed so that there is no fraying

16

What is a twill weave?

diagonal pattern of warp and weft
Uses- strong and hardwearing things
- drapes well

17

What is a satin weave?

Longer float threads across warp or weft. It is a complex arrangement
Uses- light materials

18

define Elastomerics

high elasticity polymer

19

Why combine fibres?

Fibres are combined so that the material has many properties

20

What are examples of combined fibres?

-polyester cotton
-polyester viscose

21

Types of knitted fabrics

- weft knitted
-warp knitted

22

Warp knitted

- loops interlock vertically along length of fabric

23

Weft knitted

- looping together long lengths of yarn across the fabric

24

how are non-woven fabrics made?

- bonding
- felting

25

Bonding

- webs of synthetic fibres bonded together

26

Felting

- animal hair/wool fibres matted together using heat, pressure and moisture

27

What are microfibres?

they are woven polyester fibres and can be used to construct woven, knitted, laminated and micro-encapsulated smart fabrics.

28

define Micro-encapsulated

various microcapsules embedded in a fibre or fabric
uses: used to give a good smell and reduce body odour

29

examples of technological advances in textiles materials

- light sensitive (photochromic dyes)
- heat sensitive (therm-chronic)
-solvation chromism (changes colour when wet)
- Interactive fibres which incorporates electronics
-Inflatables
- Nanotechnology
- Fibre optics

30

What is a fabric specification?

a particular fabric/s used to make that specific product because certain properties are required

31

what are some popular fabrics?

-denim
-satin
-polar fleece
-corduroy
-tweed
-plain weaves
-velvet
-drill
-knitted jersey
-felt

32

How do manufacturing techniques influence fabric choices?

It depends if the fabric needs to be dyed, printed, flocked or embroidered. This influences the type of fabric chosen.