【Washing powder manufacturer】Why do towels turn yellow?

Laundry liquid, washing powder, soap, soap, dishwashing liquid, shampoo, softener, hand sanitizer, etc., the washing and care products you want are all here, welcome to contact us. The white sheets, quilts and towels of the hotel and hotel will turn yellow, gray and hard after using for a period of time! ! 【Washing powder manufacturer】Why do towels turn yellow? If the towel is not dehydrated, it will also make the towel yellow: A: The problem of dehydration: If the towel is not dehydrated during washing, residues of alkaline chemicals will be formed, which will remain in the towel fiber, making the towel hard and making the towel hard. The fastness decreased. B: Alkaline chemicals, which are safe for cotton fibers during the washing process, and will not damage the towel fibers. However, if the dehydration is not clean, the residue of alkaline detergent will remain in the towel fiber, which will make the towel hard and the softness will decrease after the towel is dried. 【Washing powder manufacturer】C: Residue of chlorine bleach. Chlorine bleach is a strong bleaching agent in washing chemicals, and it does some damage to cotton fibers in cotton fabrics. It must be used and controlled reasonably in the washing process. If the temperature and washing time and concentration are well controlled, it is relatively safe. On the contrary, the temperature, concentration and quantity are not well controlled, and the dehydration is not clean, so that residual substances are formed in the cotton fibers, and the residual substances are harmful to the fibers of cotton fabrics. damaged. Lead to yellowing and hard towel fabrics and other phenomena. [Washing powder manufacturer] Solution: 1. Use neutralizing agent for pickling, the temperature is controlled at 45 °C, the time is controlled at 15 minutes, and the dosage is between 200g-500g for a 100 kg equipment. The above operations are recommended in the main wash After the completion of D, the operation effect will be more ideal when passing through the water once. (It is recommended not to use this method for a long time, because the damage to the linen is too great) 2. According to the existing temperature conditions, it is recommended not to use color bleaching and chlorine bleaching at ordinary times, and use chlorine bleaching regularly or periodically. Usually, it is recommended to use whitening washing powder or general washing powder in the main washing process, and use less or no emulsifier. After each main washing, use two peracids, and control the temperature of the first pickling at 45 °C, and the dosage is Take 100kg of equipment as an example, 250g, the washing time is 5-10 minutes, the D secondary pickling temperature is below 35 ℃, the dosage is 100g, and the washing time is 5 minutes. (It is recommended to use this method for a long time, and the whiteness of the linen will become clearer day by day.) 3. Use special reduction powder for reduction treatment. Washing powder processing synthetic detergents are mainly composed of surfactants, and are equipped with appropriate amount of builders with different functions. Laundry powder refers to powdered (granular) synthetic detergents. Washing powder processing Because washing powder can show good decontamination effect in various water quality such as well water, river water, tap water, spring water, and even sea water, and is widely used in various fabrics, its production and use have developed rapidly. . Now, washing powder is almost a necessary washing item for every household.
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