The principle of dry cleaning is to remove oil stains and dirt from clothes with solvents. Because the solvent contains almost no water, it is called dry cleaning. Solvents for dry cleaning can dissolve and remove oil stains on clothes, such as natural fibers such as wool and cashmere, which generally shrink, deform and fade after washing, but dry cleaning with solvents can handle it well, that is, it can remove dirt without shrinking or deforming.
Some people worry that dry cleaning will do great harm to clothes, which is also wrong. Frequent dry cleaning can prolong the service life of clothes, because stains on clothes will penetrate into fibers and dust will wear fabric fibers like sandpaper. Shanghai Donghua University (formerly China Textile University. Note: I graduated from this school. The clothing department recently tested the changes of wool fabrics after dry cleaning. The results show that the toughness and strength of wool fabric have changed significantly.
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Clothes that must be dry-cleaned: (1) clothes with lining and shoulder pads; (2) Silk ties, Tang-style cheongsam, wool products and other thin clothes; (3) Clothing with strong effects such as suits and coats; (4) office workers' professional suits should be dry-cleaned. If the coat is dry-cleaned and the skirt and trousers are washed, the color difference will appear after a long time. 5] Hemp products with severe shrinkage; [6] clothes that fade easily; Leather, fur products, furs, etc.
Clothes that can't be dry-cleaned: (1) clothes coated with chemical fiber, organic solvents will make the coating hard; ⑵ Dry cleaning of down products will degrease down.
Clothes that can be washed and dry-cleaned ... (1) Light cotton clothes are washed with water to make them more vivid; 2 chemical fiber clothes without shoulder pads are best washed with water.