Firstly, white shirts should not be washed until they are dirty. They should be washed after wearing them for 1-2 days at most. If worn or left for too long, stains and sweat will stubbornly adhere to the shirt, making it very difficult to wash it as white as new.
It is generally recommended to hand wash cotton white shirts in cold water, gently pinch and wash them, and avoid twisting or rubbing them vigorously to protect the fabric and maintain the color of the shirt, so as not to cause deformation.
If choosing a washing machine to clean shirts, avoid washing them together with dark or easily faded clothes. Use a gentle washing method, such as rinsing or weak washing, and place the shirt in a dedicated laundry bag to prevent tangling and reduce wrinkles. The dehydration process should not be too long, at most 30 seconds, or choose not to dehydrate.
Washing method for yellowing stains on white shirts
Method 1: Special detergent for white clothes
A detergent specifically designed for white clothes can effectively maintain the whiteness of white clothing, making it easy to clean white shirts within the normal range.
Method 2: 250ml baking soda+4L warm water
Soak baking soda in warm water until it dissolves. Soak the white shirt in water for 8 hours, then scoop it up and rinse with clean water. The clothes immediately become soft and white.
Method 3: Baking soda+water
Mix baking soda powder with water until it becomes a paste, apply it to the dyed area of clothing, brush and wipe with a toothbrush, wait for it to dry, and then brush off the baking soda.
Method 4: White Vinegar+Water
Add an appropriate amount of white vinegar to a clean basin of cold water, stir well, and then put the white shirt into the water. Soak for a period of time, which is effective for yellowing. At the same time, it also has a certain effect on removing fresh oil stains. However, white vinegar is an acidic substance after all, soaking clothes for a long time may cause damage, and there may be residual vinegar odor.