There are many small yellow spots on the linen in the hotel. Is it caused by the wrong use of detergent?

Macula appears after washing linen in hotel, which is a frequent problem, but there have been different opinions on its causes and treatment methods. There are many reasons for macular formation, mainly the following reasons. Water or chemicals contain some impurities such as pigments and spots, which should be solved by chlorine bleaching. Rust is easy to remove, and it is caused by excessive whitening washing powder and acid.

I want to give you some advice about flax macula. Sweat stains and newly dyed sweat stains can be removed by soaking in 5 ~ 10% salt solution for 10 minutes and then washing with soap. Old sweat stains can be washed by soaking in a mixture of 10 ammonia,/kloc-0 salt and 1 00 water, and then rinsing with clean water. Sweat stains on white fabrics can be removed with 5% soda solution, and sweat stains on woolen clothes can be wiped with citric acid solution. Avoid using hot water to remove sweat stains from clothes, which will only aggravate yellow sweat stains.