What Are The Common Methods of Water Washing?

1. General washing (GARMENT WASH) General washing is ordinary washing. It just changes the washing we are familiar with to mechanization. The water temperature is around 60°-90°C. Add a certain amount of detergent and wait for about 15 minutes. After ordinary washing, just rinse with clean water and add softener to make the fabric softer, more comfortable, and visually more natural and cleaner. Usually, based on the length of washing time and the amount of chemicals used, general washing can be divided into light general washing, general washing and heavy general washing. Usually light general washing lasts about 5 minutes, general washing lasts about 15 minutes, and heavy general washing lasts about 30 minutes (this time is not precise). There is no obvious boundary between these three washing methods.

2. Stone washing/stone grinding (STONE WASH) Stone washing is to add a certain size of pumice stone to the washing water to polish the pumice stone with the clothes. The water level in the polishing tank is carried out at a low level where the clothes are completely soaked, so that the pumice stone can be well Contact with clothing. General washing or rinsing can be carried out before stone grinding, or rinsing can be carried out after stone grinding. According to the different requirements of customers, ** stone, white stone, AAA stone, artificial stone, rubber balls, etc. can be used for washing to achieve different washing effects. After washing, the cloth surface will appear gray and old, and the clothes will have slight to Heavy damage.

3. Enzyme wash (ENZYME WASH) enzyme is a kind of cellulase, which can degrade the fiber structure under a certain pH value and temperature, so that the cloth surface can fade more gently and lose hair (producing "peach skin"). effect) and get long-lasting softness. Stones can be used together with or instead of stones. If used together with stones, it is usually called ENZYME STONE WASH.

4. SAND WASH Sand washing uses some alkaline and oxidizing additives to make the clothes have a certain fading effect and a sense of staleness after washing. If it is combined with stone grinding, a layer of soft frosty white will be produced on the surface of the cloth after washing. The fluff and some softeners can make the fabric soft and soft after washing, thereby improving the comfort of wearing.

5. Chemical washing (CHEMICAL WASH) Chemical washing mainly uses strong alkali additives (NaOH, NaSiO3, etc.) to achieve the purpose of fading. After washing, the clothes will have a more obvious sense of staleness. Adding softener will make the clothes softer and softer. Plumping effect. If stones are added to chemical washing, it is called fossil washing (CHEMICAL STONE WASH), which can enhance the fading and wear effects, making the clothes have a strong sense of distress. Fossil washing combines the effects of chemical washing and stone washing. After washing, it can achieve an imitation and fluffing effect.

6. Rinse (BLEACH WASH) In order to make the clothes have a white or bright appearance and soft feel, the clothes need to be rinsed, that is, after ordinary washing in clean water, the temperature is heated to 60°C, and an appropriate amount is added according to the depth of the bleached color. Bleaching agent will make the color consistent with the board within 7-10 minutes. During operation, the direction of adding bleach should be consistent with the direction of the rotating cylinder to prevent the bleach from falling directly on the clothes because it cannot be diluted with water as quickly as possible, causing partial bleaching. Before bleaching, the water level in the tank should be slightly higher to facilitate dilution of the bleaching water. After the clothes are bleached, use large (baby) soda (Na2CO3, NaHCO3) to neutralize the residual bleach in the water to completely stop bleaching. After running through clean water, add detergent, fluorescent whitening agent, hydrogen peroxide, etc. to the water temperature of 50°C for final washing, neutralizing the PH value, fluorescent whitening, etc., and finally softening.

Rinsing can be divided into oxygen bleaching and chlorine bleaching. Oxygen bleaching uses the oxidation of hydrogen peroxide at a certain pH value and temperature to destroy the dye structure, thereby achieving the purpose of fading and whitening. Generally, the bleached cloth surface will be slightly red. Chlorine bleaching uses the oxidation of sodium hypochlorite to destroy the dye structure, thereby achieving the purpose of fading. Chlorine bleaching has a rough fading effect and is mostly used for rinsing indigo denim. After bleaching the boards, sea waves should be used to neutralize the residual chlorine in the water and clothing to stop the bleaching. After bleaching, stone grinding is performed, which is called BLEACH STONE WASH.

7. DESTROY WASH: After the garments are polished with pumice and treated with additives, there will be a certain degree of damage in certain parts (bones, collar corners, etc.), and the clothes will have a more obvious dilapidated effect after washing.

8. Snow wash (SNOW WASH) soaks the dry pumice with potassium permanganate solution, and then polishes it directly with the clothes in a special rotating cylinder. The pumice is polished on the clothes, so that the potassium permanganate oxidizes the friction points and makes the clothes more durable. The fabric fades irregularly, forming white spots that resemble snowflakes. The general process of snowflake washing is as follows: Soak pumice in potassium permanganate - Dry grinding of pumice and clothes - Check the snowflake effect - Take out the clothes and wash them with clean water in the washing tank to remove the stone dust on the clothes - Neutralize with oxalic acid --Wash--Apply softener.

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