sunlight exposure, climate degradation, environmental pollution, furthermore life is getting strained, skin also confronts the unprecedented stress. Water deficiency, skin color imbalance, roughness, sagging, all kinds of various issues comes out. Besides daily cleansing, skin toning, and nourishing trilogy, still need to be coated with layers of nourishing products, process whitening, moisturizing, anti-aging, sun-screening…using too many products, again worry that skin can hardly adopt? Possess naturally repairing effect of organic skin care products.
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The reduced bleaching process is possessed of obvious whitening effects, through the DE iron and reduction bleaching processes in one bath and the orthogonal experiment.
通过脱铁与还原漂白同浴、应用正交实验，优选出的还原漂白工艺增白效果显著。
The whitening process was performed on PAN fiber produced by sodium thiocyanate wet spinning. The effects of the main whitening conditions on whitening effect were discussed.
对硫氢酸钠湿法二步法腈纶进行增白，探讨了主要增白工艺条件对增白效果的影响。
Through practice, PS-1 whitening process is proven easy to operate and has merits of low cost, high percentage of acceptable products and pretty good financial benefits.
生产实践证明，PS—1增白工艺操作方便、成本低、正品率高，经济效益十分显著。
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