Why is there white powder on hotel sheets?

There is white powder in the hotel sheets, which is the powder left by the dryer after bleaching powder cleaning.

There are many factors that affect the washing quality of hotel linen, including detergent quality, water quality, whether the working temperature can be reached, human factors and so on. The flax washed by many newly-opened or poorly-managed washing plants always feels neither white nor bright, which is caused by insufficient understanding of flax washing technology.

Generally speaking, if the quality of detergent and tap water is good enough, the linen washing requirements of four-star and five-star hotels can be met by strictly referring to the above washing procedures. The main reason is that the stains on flax fibers are not completely removed. When there are stains around flax fibers, whitening or bleaching is futile.

Please pay attention to the following points when using bleach:

First, bleaching agent needs temperature requirements, and oxygen bleaching powder needs to release more than 30 degrees of active oxygen to have bleaching function. The higher the temperature, the more complete the release of active oxygen during the main washing, while chlorine bleaching can only be added to the washing machine for bleaching when it is above 60 degrees.

When the temperature is lower than 60 degrees, it is easy to cause yellowing and serious damage to cotton cloth. Customers often ask why linen suddenly turns yellow. Many times it is because of low temperature chlorine bleaching. Bleach needs to be bleached in alkaline environment. Chlorine bleaching in alkaline environment without washing powder will bring serious damage to flax.