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研究了聚半乳甘露糖半纤维素对胶印新闻纸抄造纸性能的影响。在旧报纸脱墨浆中,添加少量(0.3%～0.5%)的聚半乳甘露糖半纤维素,就能将纸页中的纤维、胶体组分及填料牢牢结合在一起,提高纸张表面结合强度,减少印刷过程中的掉毛掉粉现象;增强纸张最初的湿强度,改善网部及压榨运行性能;在增强、助留的同时,形成的微絮凝结构不影响纸浆纤维的滤水性能;通过分子缔合力吸附纸机系统中的细小纤维、胶体性糖类以及无机物,降低系统中的COD,有利于高速纸机“零排放”系统的良好运行。
The effect of poly-galactomannan hemicellulose on the properties of offset-press newsprint paper was studied. In the old newspaper deinked pulp, adding a small amount (0.3% ~ 0.5%) of poly-galactomannan hemicellulose, the paper can be fiber, colloidal components and fillers firmly together to improve the paper surface The combination of strength and reduce the printing process of hair loss powder phenomenon; enhance the initial wet strength of paper to improve the net Department and crushing performance; while enhancing, stay at the same time, the formation of micro-flocculation structure does not affect the drainage performance of pulp fibers ; Through the molecular association adsorption of small fibers, colloidal sugars and inorganic substances in the paper machine system to reduce the system of COD, is conducive to the high-speed paper machine “zero emissions ” system running well.