2, the second measure: salt water. If the clothes are just as low as juice, sprinkle some salt and drop some water to dissolve them. After soaking for a period of time, the traces of juice on clothes will disappear.
3, the third measure: white vinegar. Pour white vinegar on the trace, leave it for about 10 minute, then soak it for a few minutes and rub it.
4. The fourth measure: ammonia. Wash the trace with 20 times diluted ammonia water, and then scrub it with detergent.
Extended data:
Ammonia water, also known as ammonia water, is mainly composed of NH3·H2O. It is an aqueous solution of ammonia, colorless and transparent, and has a pungent smell. The melting point of ammonia is -77℃, the boiling point is 36℃, and the density is 0.9 1g/cm? . Ammonia gas is easily soluble in water and ethanol. Volatile, with the universality of some alkali, ammonia water is made by introducing ammonia into water. Ammonia is toxic, irritating and corrosive to eyes, nose and skin, and can suffocate people. The maximum allowable concentration in the air is 30mg/m3. Mainly used as fertilizer.
Industrial ammonia water is an aqueous solution containing 25% ~ 28% ammonia. Only a small part of ammonia molecules in ammonia water react with water to generate ammonia monohydrate, which is a weak base only existing in ammonia water. The freezing point of ammonia water is related to its concentration, and the commonly used (wt)20% concentration freezing point is about -35℃. The neutralization reaction with acid generates heat. Danger of burning and explosion. The specific heat capacity is 4.3× 10? J/kg℃ (10% ammonia)
You should know that ammonia water has a good decomposition ability for sweat stains, mildew spots and grease stains. It can be used as an assistant in detergent. If used as a detergent, its chemical properties are alkaline and corrosive, which may affect some clothing fibers and colors, so the fibers must be diluted with water or protected before use.
If clothes and linen are pretreated before washing, ammonia-containing soap solution (50 g ammonia water +500 g soft water+150 g soap noodles) can be prepared to treat all kinds of heavy oil stains. In addition, ammonia water can dissolve a variety of dyes and pigments, and it also has its unique removal effect on pigment stains stuck on fabrics.
Ammonia water also has its unique function in leather packaging and maintenance. First of all, due to improper storage in summer, leather clothes will be mildewed and frosted due to humidity, which will not only affect the appearance of wearing, but also damage the health. Therefore, it can be wiped and disinfected with 1 part ammonia water and 2 parts alcohol. Secondly, all kinds of pigment pastes are soluble in ammonia water, and the pigment can be diluted with ammonia water after a long thickening time. Because of this characteristic, ammonia water can also be mixed with acetone and butyl acetate to make solvent paint remover, which is used for leather peeling and stripping.
References:
Baidu Encyclopedia: Ammonia Water