模式一
Yellow pillow cases before washing, the best first in the hot sun for one to two hours, so that more useful to wash away the yellow marks. After exposure to the sun, immediately on the pillowcase immersion, to thoroughly soak the stains on the pillowcase, it is best to use warm water or hot water, the laundry detergent and so on into the soak together for more than an hour.
After soaking through, whether by hand or machine wash, first wash with laundry detergent, etc., to wash away basic sweat spots. Many washing powders do not play a role in the retention of sweat spots for a long time, and the effect of dishwashing detergent will be well controlled, therefore, washing powder can be washed again with dishwashing detergent after washing, to wash away these stains.
模式二
If the pillowcase material control heat resistance, you can not on the way of two steps, use the way of boiling. Put the detergent and pillowcase in boiling water for a while, then take it out and scrub it or brush it to see how it cleans. If it doesn’t work, put it in and cook it again and again until you’re satisfied.
For pillowcases that are infrequently changed, or that are poorly washed, these methods may not be able to completely remove yellow spots. You can then use white electric oil to scrub frequently, yellow effect is very good. The above steps can also be omitted and washed directly with white electric oil after exposure to the sun.
注意事项：
White electric oil can be dangerous to human health, so be sure to wear gloves during washing. White electric oil is volatile, after washing the pillowcase to dry enough time, and then rinse with water several times.
Do not use bleach on your pillowcase casually. Some fabrics do not tolerate strong oxidants. The pillowcase may be worn out after bleaching.
If the pillowcase is a solid or light color, and the fabric is dyed firmly and resistant to strong oxidants, you can use bleach (detergent, bleaching water, bleaching powder, etc.) to hold a bubble wash or boil, this way is the most useful, can completely remove the yellow.
