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Method for the production of high quality paper, comprises bleaching a fiber mix of deinked pulp, bleached chemical thermo-mechanical pule and/or alkaline peroxide thermo-mechanical pule as base component of the paper
Method for the production of high quality paper, comprises bleaching a fiber mix of deinked pulp, bleached chemical thermo-mechanical pule and/or alkaline peroxide thermo-mechanical pule as base component of the paper
The method comprises bleaching a fiber mix of deinked pulp (DIP) (50 wt.%), bleached chemical thermo-mechanical pule (BCTMP) (50 wt.%) and/or alkaline peroxide thermo-mechanical pule (APTMP) as base component of the paper. The weight portion of the DIP is selected in such a way that a closed sheet quality is reached. The porosity of the paper is controlled over the weight portion of the DIP. The BCTMP and/or the APTMP is produced from poplar-, acacia-, or eucalyptus wood. The fiber mix is added to 2.5-20% of longitudinal fibers, where all fiber materials are bleached. The method comprises bleaching a fiber mix of deinked pulp (DIP) (50 wt.%), bleached chemical thermo-mechanical pule (BCTMP) (50 wt.%) and/or alkaline peroxide thermo-mechanical pule (APTMP) as base component of the paper. The weight portion of the DIP is selected in such a way that a closed sheet quality is reached. The porosity of the paper is controlled over the weight portion of the DIP. The BCTMP and/or the APTMP is produced from poplar-, acacia-, or eucalyptus wood. The fiber mix is added to 2.5-20% of longitudinal fibers, where all fiber materials are bleached. The bleaching is carried out by a totally chlorine free process, where a filler portion (50 wt.%) is added in the form of mineralized pigment to the paper. The pigment is a hybrid with a base of natural, ground calcium carbonate, and a polymer on the surface of the base. The surface mass of the paper is 80 g/m 2. The paper is pre-calendered before a coating process. The pre-calendering is carried out by a soft-compact-calender. A short-time-hydrophobising of the paper is carried out by a sizing agent in the mass. A refinement of the paper is carried out by a pigment coating. The coating color used for the pigment coating has a solid content of 75-80%. The coating weight is 8-20 g/m 2/side. A synthetic binder contained in the coating color is substituted by dextrinated strength or by grafted polymer based on strength. A film press or a curtain coater is used for coating the coating color. A final calendering is carried out in a multi-nip-soft-compact-calender after coating the paper at high temperature and humidity. An independent claim is included for a device for the production of high quality paper.
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机译：该方法包括对脱墨纸浆（DIP）（50重量％），漂白化学热机械桩（BCTMP）（50重量％）和/或碱性过氧化物热机械桩（APTMP）的纤维混合物进行漂白。的纸。选择DIP的重量部分，以达到封闭的纸张质量。在DIP的重量部分上控制纸的孔隙率。 BCTMP和/或APTMP由杨木，相思木或桉木制成。将纤维混合物添加到纵向纤维的2.5-20％中，在该纵向纤维中所有纤维材料均被漂白。该方法包括对脱墨纸浆（DIP）（50重量％），漂白化学热机械桩（BCTMP）（50重量％）和/或碱性过氧化物热机械桩（APTMP）的纤维混合物进行漂白。的纸。选择DIP的重量部分，以达到封闭的纸张质量。在DIP的重量部分上控制纸的孔隙率。 BCTMP和/或APTMP由杨木，相思木或桉木制成。将纤维混合物添加到纵向纤维的2.5-20％中，在该纵向纤维中所有纤维材料均被漂白。漂白通过完全无氯的方法进行，其中将填料部分（50重量％）以矿化颜料的形式添加到纸中。该颜料是天然的碳酸钙基质和在基质表面上的聚合物的混合物。纸的表面质量为80g / m 2。在涂布过程之前将纸张预压光。预压光是通过软压光机进行的。纸中的短时疏水化是通过大量的施胶剂进行的。通过颜料涂层对纸进行精制。用于颜料涂料的涂料颜色的固含量为75-80％。涂层重量为8-20g / m 2> /面。涂料颜色中包含的合成粘合剂会根据强度用糊化强度或接枝聚合物取代。使用膜压机或幕涂机涂布涂料色。在高温和高湿度下涂布纸张后，最后的压光在多压区软紧凑压光机中进行。包括用于生产高质量纸张的设备的独立权利要求。
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