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化學(xué)配方數(shù)據(jù)庫

配方類型：	PAPER
配方說明：	Reconditioning Documents (U.S. Patent 2,576,320)
配方組成：
配制方法：	When documents, letters, drawings, or other papers are photostated or blueprinted, the copies often contain "ghosts," i.e., exaggerated reproductions of folds, erasures, or other flaws in the original. A solution consisting of 35 parts glycerin and 65 parts ethyl alcohol is an excellent means for removing all traces of such flaws on the original paper. This solution is applied by brush or glass rod directly to the paper at the point of the flaw or fold. After blotting and drying, the paper will regain ist original over-all uniform appearance.

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