Cotton Flashcards
1
Q
What part of the plant is cotton fibre made from?
A
The seed fibre
2
Q
Top 3 producers of cotton are?
A
- USA
- China
- India
3
Q
What percentages of materials make up cotton? (scientific names)
A
- 94% cellulose (C6H10O5)
- 6% protein, wax and other organic materials
4
Q
What is the general length of cotton?
A
15-50mm, normally 20-40mm
5
Q
What is the average fineness of cotton?
A
10-20 ,u
6
Q
What is the tenacity of cotton?
A
Medium strength, stronger when wet
7
Q
What is the elongation of cotton?
A
Fairly low, 6-10%
8
Q
How good is the elastic recovery of cotton?
A
Not good
9
Q
What is cotton’s resilience like?
A
Low, however abrasion is good
10
Q
How good is cotton’s absorbency?
A
Can hold up to 20% water vapour without feeling wet
11
Q
How does cotton react to heat?
A
- No melting point
- relatively heat resistant
- will yellow with very hot iron
- burns readily and smells like burnt paper
12
Q
What are cotton’s unique selling points?
A
- most commonly used textile in world
- prized for comfort, launderability
- low cost
- easily blended
