In order to make the cotton conventional denim clothes have a bright or bright appearance and a soft feel, it is necessary to rinse the clothes, that is, after washing the clothes with clean water, heat them to 60 ° C, add an appropriate amount of bleach according to the depth of the bleached color, and make the color match the plate within 7-10 minutes. Then, neutralize the remaining bleaching water in the water with large (small) soda (Na2CO3, NaHCO3) to make the bleaching completely interrupted. After the water is cleaned, add detergent, fluorescent brightener, hydrogen peroxide, etc. in the water temperature of 50 ° C for final cleaning, neutralization of PH value, fluorescent whitening, etc., and finally carry out softening treatment. According to different bleaching agents, bleaching can be divided into oxygen bleaching and chlorine bleaching. Oxygen bleaching uses the oxidation effect of hydrogen peroxide at a certain PH value and temperature, and the cloth surface will turn slightly red after bleaching. Chlorine bleaching uses the oxidation effect of sodium hypochlorite, which has a rough fading effect, and is mainly used for the bleaching of indigo denim. After bleaching the plate, the residual chlorine in the water and the conventional cotton denim clothing should be neutralized with the wave to make the bleaching discontinuous. After bleaching, the stone grinding is called the stone bleaching.

CHEMICAL WASH

Chemical washing mainly uses strong alkali additives (NaOH, NaSiO3, etc.) to achieve the purpose of fading the conventional denim of pure cotton. After washing, the clothes will have a relatively obvious sense of staleness. After adding softeners, the clothes will have a soft and full effect. If rocks are involved in chemical washing, it is called CHEMICAL STONE WASH, which can enhance the fading and wear effects, and then make the clothes have a strong sense of aging. Fossil washing combines chemical washing and stone washing effects, and can achieve a kind of imitation and fuzzing effect after washing.

SAND WASH

Some alkaline and oxidizing additives are used in sand washing to make the clothes have certain fading effect and old feeling of pure cotton conventional denim after washing. If it is combined with stone grinding, a layer of soft frost white fluff will be produced on the surface of the cloth after washing, and some softeners will be added to make the washed fabric soft and soft, and then improve the comfort of wearing.

The article originated from denim millhttp://www.in-it.com.cn