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The general cotton denim will have a 2% - 3% horizontal shrinkage, while the elastic denim will have a shrinkage rate of more than 10%, and the high elastic denim will also have a shrinkage rate of 15-18%. What is the reason for the shrinkage of denim after washing?

1、 Elements of natural shortening

Natural shortened factors Natural shortened factors Natural shortened factors refer to

Shortening of fabric from delivery to use. In the process of knitting and processing of denim fabric, the fiber is subject to a certain degree of mechanical external force, which causes the fiber, yarn and fabric to stretch, leaving a potential strain

The variety, knitting process, storage conditions and time of fabric fibers will cause certain accumulated deformation, which will affect the degree of natural shortening of the fabric. The natural shortening of some denim fabrics may also be negative, which gives denim clothing

It is difficult to control the size of the paper pattern.

2、 Elements of heat shrinking

The factor of heat shrinking shortThe factor of heat shrinking shortThe factor of heat shrinking shortThe heat shrinking shorting of denim fabric mainly refers to the shortening phenomenon of denim fabric during the production of ironing and ironing. Because the factors of the thermoplasticity of denim fabric fiber and the fabric drawing property will shorten when the temperature is too high during the ironing and ironing process, which will affect the tailor's scale.

3、 Factors of shortening in case of water

After absorbing water, the denim fabric fiber will expand in the opposite direction. The bending degree of warp and weft yarn will increase, the fabric will become thicker, and the size will be shortened. This shortening is also called shrinkage. Generally speaking, the better the moisture absorption of the fiber used in the fabric, the greater the shrinkage of the fabric itself, and vice versa. General denim will have 2% - 3% horizontal shrinkage, while elastic denim will have a shrinkage of more than 10%.

Clothing made of denim fabric has always been popular with people because of its rough, bold and unrestrained. In order to achieve denim fabric desizing, anti-shrinking, softening, hair removal and tailor's special feel and visual effect, tailor's washing has become one of the characteristics of denim clothing.

The article originates from denim mill:http://www.runsic.cn/