Cotton has good hygroscopicity, high moisture retention, good heat resistance, strong alkali resistance and good hygiene. These are the reasons why you are willing to buy cotton bedding. As for what you are concerned about, will the cotton shrink? The answer is yes. But do you know why cotton shrinks?
1
Pure cotton material Pure cotton fabric is composed of plant fibers. When the fabric is soaked, water molecules will enter the interior of the cotton fiber, causing the fiber to expand. When the weft (or warp) direction of the fabric expands, When it is thick, the fabric will shrink, so the longer it is immersed in water, the shrinkage will be relatively larger. Of course, this is only relative, and it will not shrink endlessly.
2
Textile processing of pure cotton fabrics in textile dyeing and finishing During the process, the fibers are stretched by a certain external force. After finishing, this stretching will be temporarily in a “stable” state. When washed in water, the moisture will gradually weaken the connection between fiber molecules, reduce the friction on the fiber surface, destroy the temporary “stable” state, and the fiber will return to or approach its original equilibrium state. Generally speaking, during the weaving, dyeing and finishing process, it needs to be stretched many times. The fabric with greater tension will have a greater shrinkage, and vice versa.
3
Everyone should know that the yarn weaving of the fabric is pure cotton The yarn weave of bedding can be roughly divided into 1288*68, 130*70/13372/40 satin/60 satin/80 satin, etc. The higher the yarn weave, the more high-end the fabric, and the fabric treatment is also different (such as pre-shrunk treatment) Or steam pre-shrinking, etc., to eliminate the potential of fabric shrinkage in advance. After pre-shrinking, the fabric will generally not shrink significantly).
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Classification of fabrics Commonly used cotton bedding It can be divided into four types: ordinary cotton four-piece set, combed cotton four-piece set, mercerized cotton four-piece set, and brushed four-piece set. The ordinary shrinkage rate can only depend on personal luck. Generally speaking, good manufacturer products You can still rest assured that combed cotton and mercerized cotton are generally processed before leaving the factory, and the problem is not big. Regarding sanding, I can only say that the cheaper it is, the greater the shrinkage rate. Why is the same thing cheaper? Insufficient size and reduced post-processing steps.
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Shrinkage of cotton For pure cotton fabric products, the national standard shrinkage rate is: less than or equal to 5% (that is, 100cm of fabric is normal to 95cm after washing). Pure cotton bedding should be stretched when it is about to dry after washing. Once the quilt cover is dry, stretching is useless. If your quilt cover is really much larger than the quilt core, shrinking it is useless. A general pure cotton quilt cover shrinks to 10cm, which is a standard 200*230 quilt cover. The shrunk size is 190*220cm.
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Correct washing and maintenance of cotton cannot be used for washing Hot water, the water temperature should be controlled below 35℃, it cannot be soaked in detergent for a long time, it cannot be ironed at a temperature higher than 120℃, it cannot be exposed to the sun, and it cannot be dried. Proper washing and drying should be done in a cool place and laid flat or on a stick-type drying rack. It is best to wash by hand.
Conclusion Objectively speaking, all cotton fabrics have the problem of shrinkage and fading. The key is post-finishing. Therefore, general home textile fabrics have been preshrunk. However, pre-shrinking does not mean that it will not shrink, but it means that the shrinkage rate is controlled within the national standard 3%-4%%. </p
