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Flashcards in Fibres Deck (13):
1

Describe microfibres

60-100 times thinner than a human hair
Narmally mixed with nautral fibres
Synthetic or regenerated
Expensive so it blended with cotton
Thermoplastic polyester is heatedget coils, loops crimps to get texture and stretchy
Outdoor wear

2

What are biofibres?

Renewable fibres that dont pollute the environment

3

What are filament yarns?

continuous lengths of yarns

4

What are staple yarns?

Short fibres

5

What are the two twists and why are they use?

Z&S twist to make them stronger for their end use

6

What is microencapsulation?

Microcapsules are coated in a shell and are embedded in microfibres
Antibacterial socks

7

Why are fibres blended?

To combine properties
reduct fibre cost
Improved wear and care properties

8

What are ply yarns?

2 yarns twisted together

9

What are core spun yarns?

Multi component yarns - core stays central

10

What is lamination?

Two or more layers added to delicate fabrics to add strength

11

What does Goretex do and how is it made?

It has tiny pores to allow water vapour out but rain drops are prevented from getting in. Laminate a gortex membrane between 2 layers; an outer layer (nylon or polyester) and an inner layer (PU) making it sturdier.

12

How are fabrics made from fibres?

Spun into yarns
Woven or knitted
Finished
Made into products

13

Why is silk not a staple fibre?

continuous filaments up to 1km long