Yellowing cause 1 If the towel is not dehydrated, the towel will be yellow. If the towel is not dehydrated during washing, it will form a residue of alkaline chemicals, which will remain in the towel fiber, causing the towel to be hard and the towel's fastness to drop. 2 alkaline chemicals, which are safe for cotton fibers during the washing process and do not damage the towel fibers. However, if the dehydration is not clean, the residue of the alkaline detergent is left in the towel fiber, and after the towel is dried, the towel is hardened and the softness is lowered. 3 chlorine bleaching residue, chlorine bleaching agent is a strong bleaching agent in washing chemicals, which is some damage to cotton fiber in cotton fabric. It must be used and controlled reasonably during the washing. If the temperature washing time concentration is well controlled, it is safer. Conversely, the temperature, concentration, and quantity are not well controlled, and the dehydration is not clean, so that the residual material in the cotton fiber is formed, and the residual material is on the fiber of the cotton fabric. Damaged. Leading to the yellowing and hardening of the towel fabric. Industrial washing towel specification operation can reduce yellowing The use of raw materials should be reasonable and appropriate, and should be done according to the operation procedure: the last step of washing the towel is to neutralize with an acid agent. If the acid is not properly neutralized, the fabric will be yellow and gray. In the washing process, due to the high hardness of the water, poor water quality, etc., the towel is easily grayed and yellowed. These phenomena often occur with an acid agent to neutralize the whiteness of the towel. When using it, it should be noted that cotton fiber is not afraid of acid and alkali. If the acid is often used for washing, the life of the towel can be significantly reduced, so the dosage should be controlled. Cotton fabric pH adjuster to 5.5~6.5 The pH of our human skin is basically the same. Cleaning method in life: 1 It is advisable to put the towel into the pot and add water to submerge the towel. Rinse with hot water after boiling for 5 minutes. 2 Use rice water and orange peel. After boiling, put the yellowed towel in, and gently lick to yellow. This information is compiled and published. Gemstone Collection Gemstone Collection,stone collection,crystal collection JOYA GIFT CO.,LIMITED , https://www.joyagifts.com