In the main washing stage of hotel linen, water temperature and detergent dosage directly determine washing effect, linen service life, whiteness and brightness. The key points are as follows:
I. Main Wash Water Temperature: High Temperature Improves Stain Removal; Cold Water Washing Is Not Cost-Effective
The core principle of washing is: the higher the temperature, the stronger the activity of chemical molecules, and the better the effects of decontamination, emulsification and stain decomposition.
Chemical products used in hotel linen washing, such as bleaches, sizing agents, softeners and neutralizers, all have clear temperature requirements and can only function effectively at appropriate water temperatures.
Industry practice shows that washing plants using cold-water detergents for a long time will see linen whiteness decline, brightness deteriorate, and yellowing or graying occur in about three months. In terms of linen loss and washing quality, cold-water washing is not worthwhile.
II. Detergent Dosage: Add at Standard Concentration; Do Not Reduce by Half with Less Linen
Detergent decontamination depends on the effective concentration of the washing solution, not the proportion of linen weight.
Detergent must be added strictly in accordance with the dosage recommended by the manufacturer.
Even if the washing machine is only half-loaded with linen, do not add only half the amount of detergent; otherwise, the insufficient concentration of the washing solution will directly reduce the decontamination effect.
Half-loaded linen also reduces mechanical friction and kneading force between fabrics, further lowering washing efficiency.
III. Detergent Quality: High-Quality Detergent Requires Less Dosage and Easier Rinsing
Under the same decontamination capacity, high-quality detergent requires a lower dosage.
The less detergent used, the more thoroughly it can be rinsed off.
Reduced residue lessens problems such as linen stiffening, graying and skin irritation, improving both washing quality and linen service life.