Summer is coming, and the temperature is gradually rising. Many linen washing companies have found that the amount of backwashing of linens has increased. Most of them are yellow stains. This has led to a high rate of customer complaints. So why do these problems occur periodically every summer? And how can they be solved?
Water quality reasons
Generally speaking, you will find that the water in spring and autumn is clear, while the water in summer is turbid. This is because as the water temperature rises, the water’s solubility increases. Substances dissolved in the water cause the water to be unclear.
The same principle applies: summer washing water, as long as it is not treated with reverse osmosis, will dissolve more impurities more easily than water in spring and autumn. These impurities will cause secondary contamination of linens during washing.
Sweat, oil, fruit juice and drinks
In addition to water quality, another problem is sweat stains.
In summer, the temperature rises, and the body secretes sweat and oil. It will naturally be absorbed by cotton linens during sleep. If it is not washed in a targeted manner, it is very easy to form stubborn yellow spots.
In addition, in the hot summer, guests will eat fruits and drinks. Then, the probability of juice getting on the linens will increase. Therefore, it will lead to an increase in yellow stains.
How to improve
For impurities in water
It is recommended to use detergents rich in highly effective surfactants, especially chelating agents and anti-redeposition agents, which can effectively chelate impurities in the water and prevent stains from being deposited on the linens.
For sweat and oil
Since more protein is mixed, it is necessary to make some adjustments to the washing procedure. It is recommended to 1 enter the main washing procedure, 2 add detergent, 3 heat up to 35 degrees and wash for 5-8 minutes. This can completely remove most protein stains and prevent the occurrence of yellow spots.
For juice
Because it contains a lot of pigment, it is difficult to remove. Conventional washing uses color bleaching powder or oxygen bleaching liquid. It is recommended to regularly replace it with chlorine bleaching powder or chlorine bleaching liquid. Increasing the frequency of using chlorine bleaching powder or chlorine bleaching liquid is more conducive to the thorough removal of such stains.
