The shrinkage rate of fabric refers to the percentage of fabric shrinkage after washing or soaking. Generally speaking, the fabrics with the largest shrinkage rate include synthetic fiber fabrics and its mixed textiles, by woollens, linens and cotton fabrics. Objectively speaking, most of pure cotton fabrics have the problems of shrinkage and fading. The key is the finishing. So the fabrics used in home textiles need preshrunk processing. However, the preshrunk processing does not mean the fabric won’t shrink, but the shrinkage rate is controlled within 3% and 4% as the national standard.

The shrinkage rate of fabric refers to the percentage of fabric shrinkage after washing or soaking. Generally speaking, the fabrics with the largest shrinkage rate include synthetic fiber fabrics and its mixed textiles, by woollens, linens and cotton fabrics. And the fabric with largest shrinkage rate are viscose fiber fabric, artificial cotton, and artificial wool fabrics.

Factors of shrinkage of fabric:

1.The raw material of fabric is different, then the shrinkage rate is different. Generally speaking, for the fiber with large hygroscopicity, it will swell after soaking, its diameter increases, and the length is shortened,  then the shrinkage rate is larger. For example, the hygroscopicity of some viscose fibers can reach 13%, but that of synthetic fiber fabric is weak, so its shrinkage rate is low.

2. The production process of fabric is different, then the shrinkage rate is different. Generally, during weaving and dyeing, the fiber needs several times of stretch. If the processing time is longer, the tension put on the fabric is large, the shrinkage rate is higher.

3. The thickness of yarns is different, then the shrinkage rate is different. The shrinkage rate of thick yarn is high, and the shrinkage of fine yarn is low.

4. The thread count of fabric is different, then the shrinkage rate is different. If the warp and weft counts are similar, the shrinkage rates are close. If the warp count is large, the shrinkage in warp is high. And if the weft count is larger than the warp, the shrinkage in weft is high.(China hotel bedding manufacturer )