The difference between shrinking, water washing and sand washing

Many customers find that the hand feeling is different from the original after receiving the ready-made goods. This is nothing more than shrinkage, water washing or sand washing. So what is the difference between shrinking, water washing and sand washing?

1. Shrinking

Also called pre-shrinking or shrinkage. First of all, it must be pointed out that all silk materials will shrink after washing. It is just that different processes or different silk fabrics have different shrinkage rates. Especially for wrinkled fabrics, such as Shunyu Georgette, the shrinkage of this kind of fabric can reach 18% to 20%. Therefore, generally when customers buy georgette or crepe de chine, they should be reminded that the shrinkage rate of this kind of fabric is relatively large. Otherwise, customers will unknowingly think that your product itself is defective.

2. Washing with water

Washing with water means adding softener or detergent to the water and directly giving the fabric the next water. Depending on the washing time and the amount of softener, it is generally divided into light and normal. Wash, wash, wash again. The effect after washing is that the fabric will become very soft and tactile, and there will be an illusion that the fabric has become thicker.

3. Sand washing

The process of sand washing is actually similar to that of water washing, but the things added are different. Generally, alkaline or oxidizing additives are added, of course in appropriate amounts. Add some softener. The purpose of adding alkaline additives is to destroy the surface structure of the fabric and make the fabric feel softer after sand washing. Then the surface of the fabric will have some fluff and a light layer of white mist. Therefore, after sand washing, the fabric will become softer and velvety, and the fabric will have an illusion of thickening. However, such fabrics are easy to split and may break with a slight pull. We generally do not recommend thin fabrics. Sand wash.