白衣服穿着穿着就黄了怎么办？教你3招搞定

Core Viewpoint - The article discusses the reasons why white clothing turns yellow over time and provides methods for prevention and restoration of whiteness. Group 1: Reasons for Yellowing - Yellowing can occur in specific areas or uniformly across the fabric, indicating multiple complex causes [6] - Sweat and skin oil residues can oxidize and create yellow substances, making it harder to clean if not addressed promptly [7] - Certain fabric materials, such as nylon and silk, are prone to yellowing due to their chemical structure containing amino groups that oxidize in air [8] - Improper cleaning and storage can lead to bacterial growth, which produces carotenoid pigments that cause yellowing [9] - Alkaline detergents can create chromophores that lead to yellowing, suggesting that neutral or acidic detergents are preferable for maintaining whiteness [10] - Cheap plastic packaging may contain BHT, which can transfer to clothing and cause yellowing through oxidation [11] - Airborne pollutants and UV light exposure can also contribute to the yellowing of white fabrics [14][15] - Improper storage conditions, such as humidity, can promote mold growth that leads to yellow stains [16] Group 2: Prevention Methods - To prevent yellowing, it is recommended to use neutral detergents, wash white clothes separately, and promptly address stains [18] - Avoid direct sunlight when drying white clothes to prevent UV damage [19] - Proper storage involves cleaning clothes before storage and maintaining a dry environment to prevent mold [20] Group 3: Restoration Methods - For restoring yellowed white clothes, methods include soaking in sodium percarbonate, which releases active oxygen to break down yellowing substances [21] - DIY options like using bulk sodium percarbonate can effectively bleach without damaging fabric dyes [21] - Textile fluorescent whitening agents can also be used, but caution is advised against using chlorine bleach, which can damage fabric and color [22]