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Do You Know Why All Cotton Clothes Shrink?

2020/1/9 12:56:00 0

All Cotton Garments Shrink.

Cotton has good hygroscopicity, high moisture retention, good heat resistance, strong alkali resistance and hygiene. All of you are willing to buy all cotton bed products. As for all concerned, will cotton shrink? The answer is yes. But why does cotton shrink? Do you know?

One

The pure cotton fabric is made up of plant fibers. When the fabric is infiltrated, the water molecules will enter the cotton fiber and expand the fibers. When the weft (or warp) expansion of the fabric becomes thicker, the fabric will contract, so the longer the time is immersed in the water, the larger the shrinkage.

Two

In the process of textile dyeing and finishing, the fibers must be stretched under certain external forces. After finishing, this stretch will be temporarily "stable". When soaking and washing, the water will weaken the relationship between the fibers and reduce the friction force on the surface of the fiber, so that the temporary "stable" state will be destroyed, and the fibers will recover or approach the original equilibrium state. Generally speaking, during weaving, weaving, dyeing and finishing, it is necessary to stretch many times, and the shrinkage rate of fabrics with larger tension will be larger, otherwise, it will be smaller.

Three

Fabric yarn weaving we should all know that the whole cotton bed fabric yarn can be divided into 1288*68, 130*70/13372/40 satin, /60 satin, /80 satin, etc. the higher the yarn is, the higher the fabric is, the higher the fabric is, and the treatment of the fabric is not the same (for example, pre shrink treatment or steam shrinkage, etc.), the fabric shrinkage potential is eliminated in advance, and the cloth will not shrink much after pretreating.

Four

Fabric classification commonly used cotton bedding can be roughly divided into four kinds: ordinary cotton four piece sets, combed cotton four piece sets, mercerized cotton four piece sets, sanding four sets, ordinary shrinkage rate can only see personal luck, generally good manufacturers can still be assured, combed cotton and mercerized cotton are usually processed at the time of factory disposal, and the problem is not big. The size is insufficient and the post-processing procedure is reduced.

Five

The shrinkage rate of cotton for pure cotton fabric products, the national standard shrinkage rate is less than or equal to 5% (that is to say: 95cm after 100cm fabric washing is normal) pure cotton bed products in the wash, when it is about to dry, we need to stretch. When the quilt is dried, stretching will be useless. If your quilt is really much larger than your heart, it will be useless to shrink. The general cotton quilt shrink is 10cm, which is a standard 200*230 quilt. The size of the quilt is 190*220cm.

Six

The correct washing and maintenance of cotton should not be used with hot water. The water temperature should be controlled below 35 degrees Celsius. It can not be soaked in detergent for a long time. It can not be ironed at temperatures above 120 degrees, can not be exposed to sunlight, and can not be dried. Proper washing and drying should be noted in the cool place, using a flat or garden hanger, preferably with hand washing.

Conclusion objectively speaking, there is a problem of shrinkage and fading of all cotton fabrics. The key is finishing after finishing. So the fabric of general home textiles has been pre shrinking. However, shrinkage treatment does not mean that it does not shrink, but that the shrinkage rate is controlled within the national standard 3% - 4%%.

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