Is it true that a brightener added in the production of certain materials can cause yellowing of white fabrics?
Manufacturers treat almost all white fabrics with an optical brightener to intensify the white appearance. Some of these brighteners are unstable and will yellow from age, heat and light (both natural and artificial). The heat used in the laundering process, both at home and a professional cleaners, can cause the breakdown of the optical brighteners. Use of chlorine bleach can also cause yellowing as well in certain fabrics, such as polyester blends. Wildhorse Cleaners uses only oxygen bleaches to avoid such problems. To minimize the potential for yellowing, never place white garments in direct sunlight or artificial light while being stored. Once these brighteners break down and the garment yellows, the yellowing is usually permanent. Yellowing occurs at an even faster rate when wet, thus drying white garments in the sun is not a wise choice.
Manufacturers treat almost all white fabrics with an optical brightener to intensify the white appearance. Some of these brighteners are unstable and will yellow from age, heat and light (both natural and artificial). The heat used in the laundering process, both at home and a professional cleaners, can cause the breakdown of the optical brighteners. Use of chlorine bleach can also cause yellowing as well in certain fabrics, such as polyester blends. Blue Ribbon Dry Cleaners uses only oxygen bleaches to avoid such problems. To minimize the potential for yellowing, never place white garments in direct sunlight or artificial light while being stored. Once these brighteners break down and the garment yellows, the yellowing is usually permanent. Yellowing occurs at an even faster rate when wet, thus drying white garments in the sun is not a wise choice.
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