蛋白污布的染制均匀性对洗涤剂去污力评价的影响

采用球磨机代替手工磨制炭黑制备改进蛋白污布(改进JB-02),通过测试标准洗衣粉、市售洗衣粉和含蛋白酶的标准洗衣粉对改进JB-02的去污值来评价所制备污布的质量。结果表明,使用球磨机磨制相比于手工磨制的炭黑颗粒的粒径变小,粒度分布变窄,分散均匀性提高;改进JB-02的染制均一度提高;标准洗衣粉对改进JB-02的去污值提高;当标准洗衣粉中蛋白酶的质量分数低于0.15%时,改进JB-02对蛋白酶的敏感度提高;改进JB-02的稳定性较好,可考虑作为标准产品使用。

Effect of dying uniformity of protein stained swatch on detergency evaluation

The preparation method of improved protein stained swatch (Improved JB-02) using ball mill instead of hand grinding was studied, and the quality of the Improved JB-02 was evaluated by comparison of the detergency value of standard laundry powder, market commodity laundry powder and standard laundry powder containing alkaline protease. Results show that after using the ball mill, the carbon black particle size is smaller, the particle size distribution is narrower, the dispersion uniformity is improved, and the dying levelling property of the stained swatch is improved. Furthermore, the detergency value of the standard laundry powder sample formulated with protease mass fraction lower than 0.15% becomes higher since the use of Improved JB-02. It indicates that the Improved JB-02 is more sensitive to protease and displays good storage stability. It can be considered as a standard tool for the evaluation of detergency of laundry products.