School Uniform Customization: Washing Instructions for Different Fabrics

　　School uniform manufacturers sometimes receive inquiries from customers about proper care and washing. How should school uniforms be washed, and what’s the best way to do it? Generally speaking, because school uniforms are made from standard fabrics, they’re much easier to wash and maintain than fashion‑oriented garments—this is one of the original reasons students wear them. However, if you want your uniform to look sharper and last longer, it helps to know how to care for it properly.

　　1. Clothes of different shades should be washed separately.

　　Wash light‑ and dark‑colored garments separately to prevent color transfer. Be especially careful with cotton clothing—particularly 100% cotton—as it tends to fade, wrinkle, lose its shape, and shrink. When laundering, never soak white items or pieces with white panels together with other colors; otherwise, you may find that your whites end up yellowed, greenish, bluish, or discolored.

　　2. Do not use bleach-containing laundry detergent on colored garments.

　　Do not wash colored garments with laundry detergent containing bleach, nor soak them in bleach; also, avoid washing them in water hotter than 30°C.

　　3. Do not expose clothing to direct sunlight.

　　No matter what the fabric’s composition, it should never be exposed to direct sunlight, as this can easily cause discoloration and fading.

　　4. Cotton garments all tend to shrink after washing.

　　Clothing containing cotton or made entirely of cotton typically shrinks after washing, so it’s best to buy a size slightly larger.

　　5. Water quality can affect the washing performance and quality of clothing.

　　In some areas, due to environmental pollution, the water quality is poor, causing clothes to turn yellow and become stiff after washing—so extra care is needed.

　　6. Synthetic or blended fabrics do not bleed color, whereas cotton does.

　　Synthetic or blended fabrics are dyed and fixed under high temperature and pressure, allowing the dye to fully penetrate the fiber structure and resulting in excellent colorfastness. In contrast, 100% cotton fabrics are not dyed using this high‑temperature, high‑pressure process, so their colorfastness is lower than that of synthetic fabrics—this is why school uniforms sometimes fade when washed.