I believe everyone has had the experience of clothes shrinking after being washed. This situation is something that many people don’t want to happen. What kind of clothes are prone to shrinking? The first answer I will tell you is: cotton clothes. Let’s understand why cotton shrinks so easily. Learn from it and avoid pitfalls in the future.
1: Cotton material
Pure cotton quilt cover is composed of plant fibers. When the fabric is soaked, water molecules will enter the interior of the cotton fibers, causing the fibers to puff. , when the weft direction (or warp direction) of the fabric swells and becomes thicker, 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 be absolute. Shrink down restlessly.
2. Textile processing
During the textile dyeing and finishing process, the fibers of pure cotton fabrics are stretched by a certain external force. After finishing, this stretching will 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.
Three: Yarn weaving of fabrics
Everyone should know that the gauze weaving of cotton bedding can be roughly divided into 1288*68, 130*70/13372/40 satin/60 satin /80 satin and so on. The higher the yarn weave, the more high-end the fabric. The processing of the fabric is also different (such as pre-shrinking treatment or steam pre-shrinking, etc.) to eliminate the potential of fabric shrinkage in advance. After pre-shrinking treatment, the fabric will generally not shrink again. There is a large shrinkage)
Four: Classification of fabrics
Commonly used cotton bedding can be roughly divided into four types: ordinary cotton four-piece set, combed cotton four-piece set Set, mercerized cotton four-piece set, brushed four-piece set. The normal shrinkage rate can only depend on personal luck. Generally speaking, you can rest assured of the products of good manufacturers. Combed cotton and mercerized cotton are generally processed before leaving the factory. , the problem is not big. Regarding sanding, I can only say that the cheaper the product, the greater the shrinkage. Why is the same thing cheaper? The size is insufficient and the post-processing process is reduced.
5. Shrinkage rate of pure cotton
For pure cotton fabric products, the national standard shrinkage rate is: less than or equal to 5% (that is to say: 95cm of 100cm cloth is normal 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.
6. Correct washing and maintenance of cotton
Do not use hot water for washing. The water temperature should be controlled below 35°C. Do not soak in detergent for a long time and cannot be used. Ironing at a temperature higher than 120℃, no exposure to the sun, and no drying. 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.
Have you learned the above tutorials on cotton shrinkage? We can apply it well in daily life.
