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What pen is not easy to wash off the graffiti on the school uniform?
Using propylene to coat clothes does not fade, and it is quite troublesome to wash them off;

How to wash it off:

The main components of fountain pen are bone glue and

carbon black

Tools/raw materials

Water starch slurry

carbon tetrachloride

oil of turpentine

1. Generally, ink pens will pollute the fabric, adhere to the surface of the fabric, and are easily soluble in water, so water starch slurry can be used to remove stains. Prepare the right amount first

polished glutinous rice

or

rice

Apply rice to the polluted part of the fabric, gently persuade to rub it repeatedly, and use the force evenly, so that the starch sticky substance in the rice can take out the carbon black infiltrated into the fabric fiber, and then use the treated clothes.

cleaning solution

Washington state was finally rinsed with clean water.

2. After dyeing clothes with exotic ink, carbon tetrachloride or turpentine can be tapped to remove dirt.

3. Add warm water according to the ratio of 15: 1.

Detergent essence

Put the dirty clothes in the scrubbing room to remove strange ink stains.

4.

soda

Ink removal method: use 4% size.

soda

Brush off the ink stains on the clothes and then wash them with the usual cleaning method.

5. almond ink removal method: mash almonds and apply them to the ink stains on clothes, and rinse them with clear water after repeated rubbing.

6. Use the ink stains on clothes after they are soaked with water.

rush

Rub it repeatedly, and then rinse it with clear water.