Unverified80% confidenceDecision RuleTime unknown
纯黑T恤优先选择硫化黑或活性染料染色工艺，认准洗涤标注「颜色牢度≥4级」，普通直接染料的黑色洗5-8次后会明显泛灰泛红
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80%
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Long-term
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Unverified黑色/深色T恤优先看色牢度，选标注抗UV或活性染色的产品，普通硫化染色的黑T水洗5-10次后明显发灰泛红94% similarUnverified深色T恤优选活性染色或硫化染色工艺，硫化黑不易泛红，普通直接染料多次洗涤后易出现泛白、发灰，购买时可查看吊牌染色标注89% similarUnverified黑色T恤易掉色和显褪色泛白，深色应选活性染料/色牢度4级以上，且首次单独冷水洗；反复洗后泛灰是低色牢度信号88% similarUnverified深色（黑/藏青/深红）polo衫优先选色牢度≥3-4级标注款，避免首次单独手洗即掉色染白裤；活性染料工艺比硫化染料色牢度更好84% similarUnverified深色纯色衬衫(藏蓝/黑/深灰)首选活性染色工艺，洗后不易褪色掉色；避免买硫化染色的廉价深色款，前几次洗涤会掉色染白色衣物且色牢度≤3级84% similar
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