Main characteristics of cotton cloth

Cotton cloth is a kind of woven fabric with cotton yarn as raw material, and different varieties are derived due to different organization specifications and different post processing methods.

Cotton cloth has the characteristics of softness, warmth, moisture absorption, strong air permeability and easy dyeing and processing. Because of its natural characteristics, it has long been loved by people and has become an indispensable basic product in life.

The main characteristics are as follows:

(1) have good moisture absorption and breathability, comfortable to wear; (2) soft hand, Hikaruzawa Youwa, simple; (3) good warmth retention, good performance; (4) good dyeing, bright color, complete chromatography, but the color fastness is not good; (5) alkali resistant acid, alkali treatment can make fabric fiber cross section of fabric, so the fabric can circle fiber cross section, so the fabric can round the fiber cross section, so the fabric in the fiber section turns round, thus the fabric can make the fiber cross section of fabric, so the fabric in the fiber section turns round, so that the fabric can turn round, so that the fiber section in the fabric can turn round, so that the fiber cross section in the fabric can be turned round, so that the fiber cross section in the fabric can become round, thus the fiber cross section in the fabric can be round, thus the fiber cross section in the fabric can become round, so that the fiber cross section in the fabric can become round, so that the fiber cross section in the fabric can become round, so that the fiber cross section in the fabric can become round, so that the fiber cross section in the fabric can become round, so that the fiber cross section in the fabric can Improve the luster of the fabric, that is, mercerizing (6) light resistance, but long time exposure will cause discoloration and strength decline; (7) poor elasticity, easy to produce wrinkles and creases are not easy to recover; (8) pure cotton fabric easily mouldy, metamorphic, but resistant to worm moth.

(1) the cotton fiber is a single cell cellulose fiber, one cell is a fiber, the main component of the cotton fiber is cellulose, in addition, there are fat, sugar, ash and some water-soluble substances. The cotton fabric has all the properties of cotton fiber.

The strength of the 1. strength cotton fabric depends mainly on the length of the cotton fiber, the number of twist, the longer the length of the fiber, the greater the number of twists, the stronger the strength, the strength of the finished product is better, the wear resistance is better, the strength of the material in the cotton fabric is better than that of the artificial fiber, but it is worse than the other fiber.

2. the elasticity of elastic cotton fiber is poor, so the cotton fabric is easy to fold.

3. hygroscopic cotton fiber is a porous material, the molecule contains a large hydrophilic structure, so it has good hygroscopicity and good air permeability, and the material made of it is soft and comfortable.

4. warm cotton fiber is a bad conductor of tears. The inner cavity of cotton fiber is full of unflowing air. Therefore, the warmth retention of the cotton fabric is better and the performance of the cotton fiber is excellent.

5. dyed cotton fabric has good dyeing property, bright color, and complete chromatogram. It can match all kinds of fabrics.

6. other properties of cotton fabric are good in alkali resistance, acid resistance, heat resistance and light resistance.

(two) technical requirements for cotton cloth

1. width

Within 100cm width: allowable deviations - 1.0cm ~ +2.0cm

Width of 100 to 140cm: in width is -1.5cm to +2.5cm

Width more than 140cm: allowable deviation from -2.0cm to +3.0cm

2. density

Non finishing fabrics: allowable deviation - 1.5%

Finishing and pending fabric: allowable deviation - 2.5%

(Note: no assessment is made through density, but no change can be made after the total number is prescribed.

3. color fastness

washing

Reducing dye: the original color faded 3 grade; white cloth stained 4 grade

Other dyes: the original color faded 3 grade; white cloth stained 3 grade

Blue vulcanized: the original color faded 3 grade; white cloth stained 2~3 grade

rubbing/crocking

Reducing dyestuff: dry friction 3~4; wet friction 3

Other dyes: dry friction 3; wet friction 2

Vulcanized blue: dry friction 3; wet friction 2

4. shrinkage rate

Large finishing and pre shrinking fabric: Meridian no less than 5%; zonal not less than - 5%

Standard large finishing fabric: Meridian no less than 6%; zonal not less than - 5%