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Process of eliminating ink from paper scrap fibers composition used for eliminating paper scrap ink and aqueous suspension of paper scrap
Process of eliminating ink from paper scrap fibers composition used for eliminating paper scrap ink and aqueous suspension of paper scrap
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机译:从纸屑纤维组合物中除去油墨的方法,该组合物用于消除纸屑油墨和纸屑的水悬浮液
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摘要
This invention is a method for deinking wastepaper by disintegrating the waste paper in an carbonate aqueous solution containing sodium sulfite and sodium carbonate to produce a fibrous slurry having a pH of at least 7.5, separating the ink from the fibers and removing the ink from the slurry. A composition useful for deinking fiber consists of a relative proportion of sodium sulfite to sodium carbonate between about 95:5 and about 50:50, and a surfactant.
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