| 摘要 |
PCT No. PCT/JP90/01367 Sec. 371 Date Aug. 20, 1991 Sec. 102(e) Date Aug. 20, 1991 PCT Filed Oct. 24, 1990 PCT Pub. No. WO92/07996 PCT Pub. Date May 14, 1992.A deinking agent comprising an ester mixture as the active ingredient, wherein the ester mixture is obtained by adding ethylene oxide and propylene oxide to a mixture obtained by reacting a natural fat or a reaction product, obtained by preliminarily reacting a natural fat with glycerol, with a monohydric or dihydric alcohol in such a manner as to give a molar ratio of the alcohol to the glycerol in the natural fat of from 0.02/1 to 1/1. By using the deinking agent of the present invention, a less sticky deinked pulp can be obtained without any foaming troubles or dulling.
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