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Laundry knowledge
Generally speaking, I am in this line of work.

50KG washing machine: high alkali clothing powder for washing sheets (some factories will use inferior caustic soda). Generally, 200 grams of high alkali is added, and 100 grams of organic oxygen bleaching is added. Elegant will add an acid agent (neutralizing alkali), and the main washing time is usually eight minutes. Towels are generally rinsed with 400 grams of high-alkali guest clothing powder and 200 grams of organic oxygen, and finally with acid agent and softener. The main washing time is usually eight minutes, so the PH value of washing is similar.

100K washing machine is doubled on this basis in principle, but generally speaking, 300 grams of high-alkali guest clothing powder is enough for sheets, and 200 grams for machine oxygen bleaching is similar. Of course, it depends on how much flax you add. What I said above is when it is full.

There are two main washing methods for white tablecloths. The first wash 10 minute, 200 grams of strong washing powder and emulsifier. The second one is washed for 6 minutes, with a small amount of strong washing powder and about 200 grams of bleaching powder. Depending on how dirty linen is, it will float up and down. The last one needs to be added with paddle powder (that is, raw powder for home use). This can be a little more. Generally, if a car is full, you need to add 300 ~ 500.

As for other catering fabrics, it's hard to say because different things are used in different places, but we must remember one thing. When adjusting the program, be sure to add cooling after the main washing to let the temperature drop slowly, so that the product will not wrinkle. If there is, it should be washed again. Some silk fabrics must be restored at a higher temperature.