Precautions for Garment Washing and Methods for Handling Color Transfer
Release Time:
2011-01-27 14:10
Source:
China Laundry Journal
Some friends are very diligent and always wash clothes immediately after soaking. Actually, this practice is not scientific. Generally speaking, before washing, it is best to soak clothes in cold water for a while. This has several benefits:
① It can make dust and sweat attached to the surface of the fabric detach from the clothes and enter the water, which can improve the washing quality and save detergent. The penetration of water allows the fabric to fully expand before entering the washing liquid, so that dirt in the fabric pores is squeezed out and floats to the surface, making it easier to remove.
② Some poorly colorfast yarn-dyed fabrics are prone to fading; pre-soaking can help detect these problems in time, facilitating preventive measures during washing. The amount of water for soaking should be sufficient, and the soaking time depends on the type, material, age, cleanliness, and colorfastness of the clothes. Generally, down jackets: 5-10 minutes, synthetic fiber garments: 15 minutes, fine wool garments: 15-20 minutes, coarse wool garments: 20-30 minutes, blankets and wool sweaters: 20 minutes.
Four Taboos for Washing Clothes
1. Avoid prolonged soaking. Tests show that dirt in clothing fibers effectively penetrates water after about 14 minutes of soaking, making it easiest to clean. Soaking too long will make washing more time-consuming and laborious.
2. Avoid excessive detergent. Detergent only shows its proper surface activity at a certain concentration. If too concentrated, its decontamination ability weakens.
3. Avoid adding detergent during washing. Adding detergent during washing only dissolves it in already dirty water, losing its effectiveness.
4. Avoid mixing soap and detergent: detergent is alkaline, while soap is generally weakly acidic. Mixing them causes neutralization, which reduces cleaning effectiveness.
Handling Color Transfer in Washing
Washing at too high a temperature can cause color transfer, which should be noted during washing. If color transfer occurs, quickly lift and rinse the clothes up and down in the original washing liquid, then put them into cold water for washing. If that doesn't work, repeatedly lift and rinse the clothes in hot soap alkaline solution (around 80°C, slightly concentrated), then rinse clean with warm water. Generally, this can remove the color transfer. If white clothes still have marks, use bleaching powder or sodium hypochlorite solution to clean them.
Handling "Fading" in Washing
"Fading" refers to some areas becoming lighter in color after washing. This is mostly caused by excessive force during washing, uneven operation, uneven brushing, or too high water temperature. Mild fading can be treated by laying the garment flat on a clean, smooth board, brushing gently twice, then adding a small amount of bleaching powder (half a tablespoon per 5 liters of solution) to warm mild soap solution, and quickly lifting and rinsing the clothes up and down several times in the soap solution. Severe fading requires re-dyeing.
When washing pure cotton velvet garments, first soak and pre-wash the clothes in a washing machine with cold water, then brush heavily soiled parts with soap. Brush gently on local areas to prevent local fading or velvet shedding. After brushing, wash with detergent at normal temperature for 15 minutes, then rinse with warm and cold water, spin dry, and hang to dry.
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