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We all know that towels often appear yellow and hard during use. In some cases, this condition occurs when the towels are used. It is very confusing. Let's take a look at the reasons for the yellowing of the towels and the countermeasures.
Causes of yellow towels 1 dehydration is not clean. If the towel is not dehydrated in the washing process, alkaline chemical residues will remain and remain in the fiber of the towel, causing the towel to harden and the towel's fastness to decrease.
2 alkaline chemical residues. The cotton fiber is safe during the washing process without damaging the fiber of the towel. However, if the dehydration is not clean, the residual of the alkaline detergent remains in the fiber of the towel. After the towel is dried, the towel is hardened and the flexibility is reduced.
3 chlorine bleach residue. Chlorine bleach is a stronger bleaching agent in laundry products, and it is somewhat detrimental to cotton fibers in cotton fabrics. Must be properly used and controlled in the washing. If the concentration of the temperature during the wash time is well controlled, it is safer. On the other hand, if the dehydration is not clean, the residual material formed on the cotton fibers will damage the fibers of the cotton fabric, resulting in yellowing of the towel fabric.
4 improper acid-base neutralization. The last step in the washing of the towel is neutralization with an acid, and if the acid is not properly neutralized, the fabric will be yellow and gray.
5 bad water quality of washing. In the washing process due to water hardness is too high, poor water quality and other reasons, easy to make the towel gray, yellow.
After yellowing treatment 1 appears yellow, acidity can be used to neutralize the whiteness of the towel. When using, you should pay attention to cotton fiber afraid of acid afraid of alkali, if you often use acid for washing, the life of the towel can be significantly reduced, it should control the amount. The cotton fabric pH adjuster is 5.5 to 6.5, which is basically the same as our human skin pH.
1 It is advisable to put a towel in the pan and drown in a towel, and then sprinkle with a handful of alkali to boil for 5 minutes and rinse with hot water.
2 Use rice water and orange peel. After boiling, put the yellowed towel in it and gently rub it to go to yellow.