How do you wash off the black substance on the back of your clothes?

Black is one of the ways to remove sweat stains.

Use a sprayer to spray some vinegar on sweat-stained clothes first, and then wash it after a while, the effect is very good.

The second method of removing perspiration stains.

Mash a piece of winter melon, pour it into a cloth bag, squeeze out the juice, use it to scrub sweat-stained clothes, and then rinse it with water.

The third method of removing perspiration stains.

Add a few drops of ammonia to clean water, rinse the juicy clothes in it, and rinse them with water.

The fourth method of removing perspiration stains.

Put the sweat-stained clothes in 5 salt water, soak for 1 hour, then gently rub and wash with water.

The fifth method of removing perspiration stains.

Chop the ginger into minced pieces, scrub it on the sweat stains of your clothes, and rinse it with water.

If black watercolor paint stains yellow clothes, wash them immediately with detergent and then rinse them with water a few times, which can often be washed clean. This is because they are made with dyes that dissolve in water. If there is still a little residue, it is because the dye and the fiber are combined, and you have to use bleach to remove it.

The main ingredient of bleaching powder is calcium hypochlorite, which decomposes hypochlorous acid in water, which is a strong oxidizing agent. It can oxidize the dye molecule, so that the dye becomes a colorless compound, which is bleaching.

Blue-black ink is an aqueous solution of ferrous tannins and blue dye, ferrous tannins have no color, so the words just written in blue-black ink are blue, and after contact with air on the paper, they gradually oxidize and become iron tannins that do not dissolve in water. The iron is black, so the handwriting gradually turns from blue to black, and it will never fade when exposed to water. To get rid of the ink, you have to turn it into a colorless compound.

The colorless crystals of oxalic acid are dissolved in warm water to scrub the ink stains, and the black iron kneading acid is combined with oxalic acid to form a colorless substance and dissolved into water. It should be noted that oxalic acid is corrosive to clothing and should be rinsed off as soon as possible.

Some clothes have mildew spots, how can I get rid of them?

1. If there are mildew spots on the clothes, you can use a few mung bean sprouts to rub the mildew spots, and then wash them with water.

2. Cotton cloth and linen cloth have mildew spots, and the primary color cloth is moldy, which can be exposed to sunlight; Colored cloth can be dried in a ventilated place, and then brushed to remove mildew spots after drying. If there are many mildew spots that cannot be brushed off, the original color cloth will be re-dyed, and the colored cloth can be sent to the printing and dyeing shop for finishing or counter-dyeing.

3. If the woolen and woolen fabrics are moldy, cotton cloth treatment can be used generally, but they cannot be directly exposed to the sun. If the mildew is slight, it can be dried and then brushed off with a soft brush, if it is mildew due to oil stagnation and sweat stagnation, it can be wiped repeatedly with cotton dipped in high-quality gasoline.

4. If there are mildew spots on satin clothes, you can gently wipe off the slight ones with flannel, new towels or soft brushes; If the mildew spots are heavy, you can spray dilute ammonia on the satin clothes, and then dry them with an iron.

5. The mildew spots of chemical fiber clothing are generally wiped with alcohol, 5 ammonia or turpentine. For mildew that is difficult to remove, you can wipe it with a mixture of 2 soap and alcohol first, and then wipe it with medicated hydrogen peroxide.

6. Leather products such as bags, leather, and suitcases should not be wiped with a damp cloth. It can be dried and wiped with a dry leather or cloth, then applied with petroleum jelly oil, left for 10 minutes and then wiped with a clean cloth.

Here's what you can try: Expose your clothes to the sun, then remove them with a brush, wash them off with alcohol, or scrub them with mung bean sprouts.

What are you talking about in black little by little? Is it oil, or something? To be more detailed, each of these things has a different way of dealing with them.

Ingredients: Milk, white vinegar, water.

Solution: 1. Soak the clothes in clean water.

2. Add an appropriate amount of pure milk.

3. Pour in a little white vinegar, stir the ingredients well, and soak the clothes for 10 minutes.

4. When the time is up, rub the black spots repeatedly for a few minutes, the same as ordinary laundry washing.

5. After rinsing with water, the black spots on the clothes will be cleaned.

To clean off the black spots on the clothes, you need to prepare the following materials: clean water, water basin, dish soap and lead socks, and the detailed cleaning method is as follows

5. Finally, the black spots on the clothes will be cleaned, and the effect is shown in the figure below.

It is recommended that the black spots on the back of the clothes can be scrubbed with alcohol after exposing the clothes to the sun, or you can try to soak them in thick soapy water, salt water, rice washing water, etc. The black spots on the back of the clothes are usually due to the fact that the clothes are not washed in time after sweating and soiling, causing mold to adhere to the clothes to form mold spots, which can be eliminated to a certain extent by ultraviolet rays and acidic and alkaline liquids.

The black spots on the back of the clothes are usually mold spots formed by mold attached to the clothes, it is recommended that the mold can be killed by exposing the clothes to the sun, most of the mold will fall off on its own after the mold dies, and the rest can be wiped off with alcohol.

You can also try to soak and clean the black spots on the back of your clothes with acid-rich liquids such as thick soapy water, salt water, and rice washing water.

Black spots on the back of clothing can also be removed with some mold removers currently available on the market.

Ingredients: vinegar, basin.

1. First of all, take a bottle of vinegar for later use, vinegar can restore the original color of dyed clothes.

<>3. Next, soak the black clothes in the water of the confession bend dripping with vinegar for an hour.

4. After soaking, scrub it by hand several times.

5. After the scrubbing is completed, screw the clothes to a semi-dry state.

6. Finally, the black clothes stained with bleach will return to their original state.