Why is the cloth gray and yellow after use, and how to deal with it after yellowing?

IN HOTEL OPERATIONS

The gray and yellow speed of the newly put into use is relatively slow, but the gray and yellow speed of the used 

for a period of time is faster. Linen, such as bed sheets and quilt covers, grays and yellows slightly slowly, while cloth 

cloth grays and yellows quickly. In fact, this phenomenon is also sometimes encountered in our daily laundry process

their own use of washing machines or hand washing clothes, light clothing may also appear yellow or black, become 

extremely ugly, which not only affects the mood of customers to stay in the hotel, but also pull down the hotel, hotel 

grade.

IN FACT LINEN TURNS YELLOW MAINLY FOR THE FOLLOWING REASONS:

Hard water quality

An important factor in the yellowing of linen is the quality of the washing water. Unsoftened water contains a lot of 

organic salts and inorganic salts, these salts exist in the ionic state, including calcium, magnesium, iron, zinc, 

manganese plasma, during the washing process will be deposited on the fabric, and even penetrate the fiber inside. 

With the increase of the number of washing times, the amount of deposition will continue to accumulate, which will 

lead to the linen, especially the linen cloth gray and hard. If groundwater is used, this phenomenon is even more 

serious

Rinsing is not clean

(1) The quality of detergent is poor or the amount added is small

This is one of the main causes of linen yellowing. Poor quality detergent can not wash clothes thoroughly, in the long 

run, dirt accumulation, detergent residue, clothing will naturally turn yellow. Therefore, not only need high-quality 

professional detergent, laundry workers also need to master the amount of detergent, time and temperature.

(2) Water rinsing is not thorough

When using a fully automatic industrial washing machine, there is a rinsing procedure at the end of washing. If the 

rinsing water is insufficient or the time is too short, it will cause the rinsing is not complete, and the dirt under the 

washing will be evenly attached to the fabric, causing the fabric to turn yellow.

No dechlorination was performed after the use of chlorine-containing bleach

Some textile mills use chlorine-containing bleach for bleaching, but if the dechlorination process is not carried out 

the chlorine will remain on the fabric and cause the linen to turn yellow.

So, what to do with the linen after it turns yellow?

Preparation: Wash after exposure to the sun

No matter which of the following washing methods is chosen, the preliminary work is to first expose the cloth to 

the sun for several hours. Sunlight can effectively improve the yellow situation of the pillowcase, and then choose 

detergent to clean it, which can often achieve twice the result with half the effort. Usually soak and clean immediately 

after exposure to the sun, the effect is better.

Wash with white soap

There are special soaps on the market for washing white clothes, which can ensure that the clothes do not change 

color, and the price can be bought for a few dollars. After cleaning the pillowcase will be slightly white, the effect is 

more obvious, but it needs to be washed several times, the effect of one or two may not be ideal.

Wash with bleach

This washing method is only suitable for pure white pillowcases, otherwise it will make the pillowcase color pale, 

seriously affecting the appearance. We do not recommend this method because it is harmful to the hand and 

pillowcase of the washer.

Wash with rice

Rice washing water has a bleaching effect, but the effect is slightly less than that of bleach, but it is less harmful to 

hands. When washing rice in daily life, as long as the water is retained to soak the pillowcase, it will soon make the 

yellow of the pillowcase pale. No extra cost and easy to use.

Wash with porridge

As mentioned earlier, the reason why the rice washing water can be bleached is because the rice will release 

bleaching substances after soaking in water. In fact, the excess water in the porridge has the same effect, some 

delicate housewives like to fish out the muddy rice water, the water can also be used to soak the pillowcase.

As the authoritative platform in the industry, HANBI hotel linen, with its rich experience, professional team and 

accurate industry analysis, provides authoritative and practical guidance for solving the problem of linen yellowing. 

HANBI Hotel linen recommends that you try the above methods to effectively remove the yellow stains on the linen 

and improve the cleanliness and quality of the linen.