The principle and treatment method of stain identification and its removal

The washing powder OEM explained the principle and treatment method of stain identification and its removal: 1. Identification of stains 1. Visual identification Through naked eye observation, many colored stains can be seen. The following table shows the common colors and stain categories. Common colors and stain categories. 2. Identify by touch, smell and the location of stains and linen environment. (2) The basic principle of stain removal The difference between stain removal and stain removal is that stains can be removed with detergents, while stains cannot be completely removed or not removed at all with detergents alone. The stains can be removed by technical treatments using different methods. 1. Dissolution method Dissolving method is to dissolve the stains by chemical means, such as paint stains, rubber stains and other stains can be removed with gasoline, benzene, acetone and other organic solutions; ammonia water can dissolve old blood stains. 2. Oxidation method Oxidation method is to use oxide bleaching, such as hydrogen peroxide and potassium permanganate, and then wash with soap and water to remove it. White light-colored silk fabrics can be washed with alcohol soap solution and then washed with 10% hydrogen peroxide solution, but cannot be washed with bleaching powder. 9 Mildew stain removal method New mildew stains can be cleaned with a soft brush first, and then scrubbed with alcohol to remove them. Chen mildew spots can be removed by applying light ammonia water first, then applying potassium permanganate solution after a while, treating with sodium bisulfite solution and washing with water. 10. Blood stain removal method The blood stains that have just been attached can be removed by soaking them in cold water and then scrubbing with soap. But be careful not to wash with hot water. Because the protein in the blood stain will coagulate when it encounters high temperature, it is not easy to remove it if it is tightly bonded to the fiber. For old blood stains, one part borax, two parts ammonia water, and one part water can be used to make a decontamination solution, and then scrub with a brush. It can be removed by rinsing with water. 11. Milk stain removal method Milk cannot be washed with hot water, soak new stains in tap water for a few minutes, and then remove them by scrubbing with soap. The old stains can be removed by washing with detergent first, and then lightly washing with light ammonia solution. 12. Soy sauce stain removal method New stains can be removed by washing with cold water for a few minutes. Old stains should be washed with some ammonia water, four parts of the solution plus one part of ammonia water, can also be washed with 2% borax solution, silk and wool fabrics can also be removed with 10% citric acid. 13. Removal of shoe polish stains It can be removed with gasoline, turpentine or alcohol. White or light-colored fabrics stained with stains can be wetted with gasoline, wiped with 10% ammonia water, and then washed with detergent to remove. 14. Lipstick, cosmetic stain removal method Wipe with alcohol or gasoline, rinse with clean water, such as white fabric stains, moisten with 10% ammonia water, then wipe with 4% oxalic acid solution, and then rinse with detergent to remove. 15. Perm liquid removal method Perm liquid drops on silk and wool fabrics, and sometimes the color on the fabric disappears. This fading is caused by oxidation, which is the so-called invisible color in dyeing science. Fading caused by perm potions can be restored by decontamination with acetic acid. 16. Removal of coffee, tea and fruit stains can be removed with citric acid solution or alcohol solution, and then soaked with 5% sodium perborate solution. If on white or reducing color fabrics, 2% sodium hypochlorite can be used to remove stains. Fruit juice contains organic acids, which can be removed by dipping with light ammonia water and then washing with soap. 17. The grass stain removal method can be removed with 28% acetic acid solution or 3% hydrogen peroxide, or neutral detergent. 18. Household adhesive stain removal method You can use banana water to scrub repeatedly, and then wash. The above is the introduction of the principle and treatment method of stain identification and stain removal by washing powder OEM. Welcome to inquire: https://www.jingliang-pod.com/
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