The industrial standard methods to evaluate color care of detergents leverage technical fabrics and use known dye standards from A.I.S.E. (International Association for Soaps, Detergents and Maintenance Products). This has some limitations: (1) it is not always following the latest fashion trends; (2) overall color fading of a garment is due to both dye bleeding out of the fabric as well as friction during the wash leading to fabric texture changes. The latter depends on parameters such as fabric type and surface area that could be better assessed on real garments. To overcome the above limitations, we have designed a new protocol considering the incidence of garment types, fiber and dye chemistry. Leveraging this protocol, we assessed the effect of the presence of a cationic hydroxyethyl cellulose in a commercial detergent formulation on dark fabrics/garments. Our results indicate that the commercial detergent formulation with cationic hydroxyethyl cellulose delivers dark/black color benefit.

中文翻译：

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含有阳离子羟乙基纤维素的洗涤剂：利用与消费者相关的洗涤方法对深色服装的好处

评估洗涤剂颜色护理的工业标准方法利用技术织物并使用 AISE（国际肥皂、洗涤剂和维护产品协会）的已知染料标准。这有一些局限性：（1）它并不总是跟随最新的流行趋势；(2) 服装的整体褪色是由于染料渗出织物以及洗涤过程中的摩擦导致织物质地发生变化。后者取决于织物类型和表面积等参数，这些参数可以在真实服装上进行更好的评估。为了克服上述限制，我们设计了一个新的协议，考虑到服装类型、纤维和染料化学的发生率。利用该协议，我们评估了商业洗涤剂配方中阳离子羟乙基纤维素的存在对深色织物/服装的影响。我们的结果表明，含有阳离子羟乙基纤维素的商业洗涤剂配方提供了深色/黑色的好处。