主要介绍一种优质涂改液的研制开发过程，讨论不同的树脂、填料、溶剂的选用对所制得的涂改液性能的影响。
This article is mainly about the researching process of a high quality correcting liquid, Discuss the different resin, filler, solvent may lead to the different property of the correcting liquid.
从无毒生物材料中筛选出生物多糖普鲁兰，代替现有涂改液中的有毒物质，用于涂改液的制作。
One of the biotic polysaccharides-pullulan was selected from many nontoxic biotic materials in order to replace some toxic substances in the liquid used in correction pen.
从无毒生物材料中筛选出生物多糖普鲁兰，代替现有涂改液中的有毒物质，用于涂改液的制作。
One of the biotic polysaccharides-pullulan was selected from many nontoxic biotic materials in order to replace some toxic substances in the liquid used in correction pen.
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