Different Qualities of Yarn that are Used for Knitting Process

Yarns Required for Knitting:
The main raw material for Knitting process is Yarn. So its quality should be standardized. The quality of yarn should be like as follows :



 





Table: Following are the different qualities of Yarn that are used for Knitting process:

Type

Texture

Count

A

Cotton

40/1 Ne

34/1 Ne

30/1 Ne

26/1 Ne

20/1 Ne

B

T.C.

34/1 Ne

30/1 Ne

28/1 Ne

26/1 Ne

20/1 Ne

C

CVC

34/1 Ne

30/1 Ne

26/1 Ne

D

Mellange

30/1 Ne

26/1 Ne

22/1 Ne

20/1 Ne

E

Spandex

40 Denier

70 Denier

F

Polyester

75 Denier

150 Denier

G

Sewing Thread

40/3 Ne

150 Denier

Minimum requirement of other parameters are :

For Yarn :
  1. Yarn strength 13 gm/Tex (minimum)
  2. Should be waxed 0.1% - 0.3% (on the weight of the material)
  3. Yarn should not be dry
  4. Cone angle should be accurate
  5. A tail should be kept during winding
  6. Packing density must be maintained
For Spandex
  1. Should have good elasticity
  2. Yarn should be uniform
  3. Elastic recovery 100%
  4. Elongation 500%.
  5. Should be Acid, Alkali and temperature stable 
Knitting Machine Set-up In accordance with Yarn:

Table: Operator sets the following parameters prior to operation

Parameters

Range

Speed

26 ~ 28 RPM (for Solid dyed)

20 ~ 25 RPM (for Yarn dyed & designed)

Yarn Tension

4 ~ 5 gm/tex.

Stitch Length

2.60 ~3.00 mm

Weight

100 ~ 240 GSM (as requested)

Yarn (Cotton)

16 ~ 40 Ne

Yarn (Polyester)

75 ~ 300 Denier



Author of This Article:
Md. Touhidur Rahman
B.Sc. in Fabric Manufacturing
Noakhali Textile Engineering College

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