以硫酸基取代度和糖的质量分数为指标，采用L9(34)正交试验对反应温度、试剂配比和反应时间进行优选。
L9 (34) Orthogonal test was used to optimize the reaction temperature, reagent formula, and reaction time with the degree of sulfate group and carbohydrate content as index.
研究了染色过程中温度、盐类、碱剂、浴比等诸因素对染色效果的影响，优选出最佳方案。
The effects of temperature, salts, basics, bath ratio, etc. on dyeing performance were studied, and the optimum conditions were obtained.
优选适宜的发泡机头温度可以抑制气体逃逸，提高发泡倍率，获得更低密度的聚丙烯发泡材料。
To improve the volume expansion rate, lower the density of pp foam, gas escaping should be avoided by selecting the appropriate die temperature.
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