white dextrin

Optimum concentration is 4%-5% sulphuric acid and mixed thickener with emulsion thickener and gum tragacanth and white dextrin. Better stability of printing paste and excellent effect of burn-out printing are available.

选用浓度为4%~6%的硫酸及乳化糊、龙胶、白糊精拼混糊料，印浆稳定性好，烂花效果佳。

The dry preparation conditions of white dextrin. At first, the factors which affected dry preparation of white dextrin were studied by single factor experiment, such as: the quality ratio of Hcl/ starch, moisture content, reaction temperature and reaction time.

主要试验结果如下：1、白糊精干法制备工艺的研究通过单因素试验，研究了浓盐酸加入量与淀粉质量之比、体系含水量、反应时间、反应温度对白糊精的糊精化反应的影响。

preparation of white dextrin by dry method

酸催化剂制备白糊精工艺

with cornstarch as raw material and hydrochloric acid as catalyzer, the white dextrin is prepared with dry process.

以玉米淀粉为原料，盐酸作为催化剂，干法工艺制备白糊精。