1. Properties of carded and combed yanrs

Question 1

Carding: Definition

Answer 1

A process in which staple fibres are sorted, separated and partially aligned.

Question 2

Carding: Process

Answer 2

The picker lap is passed between cylinders covered with fine wire teeth. This cleans and straightens the fibres so that their longitudinal axes are somewhat parallel.

Question 3

Carding: Properties

Answer 3

A thin web of fibres is formed, which is brought together as a soft rope, 2 to 2,5 cm in diameter, and called a carded sliver. The carded sliver has no twist and very little strength.

Question 4

Combing: Definition

Answer 4

A process in which staple fibres are sorted and straightened, and the short fibres re-moved, resulting in a higher-grade fabric owing to the longer length of the remaining staple fibres.

Question 5

Combing: Process

Answer 5

If a high-quality cotton or a worsted yarn is desired, the fibres go through an additional process called combing.

Question 6

Combing: Purpose

Answer 6

The purpose of combing is to parallel fibres and to remove all the short fibres so that only long uniform staple fibres are left. This is an expensive operation because as much as 20 per cent of the fibre is combed out as waste. The product of combing is called a comber sliver.

Question 7

Carded yarn

Answer 7

Produced from fibres that have been carded but not combed.

Question 8

Carded yarn Strength

Answer 8

Lower

Question 9

Carded yarn Twist

Answer 9

Lower

Question 10

Carded yarn Short fibres

Answer 10

Higher %

Question 11

Carded yarn Texture

Answer 11

Hairy

Question 12

Combed Yarn

Answer 12

Produced from fibres that have been carded and combed

Question 13

Combed Yarn Strength

Answer 13

Higher

Question 14

Combed Yarn Twist

Answer 14

Higher

Question 15

Combed Yarn Short fibres

Answer 15

Lower%

Question 16

Combed Yarn Texture

Answer 16

Smooth