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Kraft liner board and method of producing Kraft liner board from bleached or unbleached Kraft pulp, TMP pulp, SCMP or sulfite pulp
Kraft liner board and method of producing Kraft liner board from bleached or unbleached Kraft pulp, TMP pulp, SCMP or sulfite pulp
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机译:牛皮纸衬板和由漂白或未漂白的牛皮纸浆,TMP纸浆,SCMP或亚硫酸盐纸浆生产牛皮纸衬板的方法
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摘要
The invention relates to a method of improving the wet strength of paper products produced from bleached or unbleached kraft pulp, thermomechanical pulp, SCMP or sulfite pulp. The method comprises the steps of subjecting paper to high pressure densification during its production and heating the paper so as to raise its internal temperature to at least 216°C for a period of time sufficient to increase the wet strength thereof.
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