颜料协同作用对涂布装饰原纸性能的影响

发布时间：2018-09-13 15:02

【摘要】：目的研究颜料协同作用对装饰原纸性能的影响,达到改善纸张表面结构、优化其物理性能的目的。方法优选阔叶木浆和针叶木浆(有效成分的绝对质量比为4∶1)混合打浆至打浆度(SR)38°,再添加二氧化钛填料、PAM、PAE、硫酸铝等抄造装饰原纸;以PVA、阳离子淀粉为胶黏剂,加以蒸馏水、颜料(TiO_2分别与Al_2O_3,Clay,Al_2SiO_5,SiO_2协同)、分散剂、消泡剂、润滑剂、保水剂制备用于装饰纸表面用涂料,采用涂布机和压光机对原纸进行涂布压光,之后浸渍压板,采用凹版进行印刷,探究颜料复配涂布对原纸涂层结构和印刷适性作用。结果颜料协同改性中添加一定的SiO_2颜料有助于纸张表面被有效均匀地涂覆,并能观察到细小的颜料颗粒,形成良好紧密涂层结构,装饰原纸涂布含有SiO_2协同作用颜料后,吸水高度提高了135%,平滑度提高了130%,干抗张强度提高了175%,湿抗张强度提高了160%。印刷性能方面,协同改性添加SiO_2涂料涂布装饰原纸在相对较小的涂层厚度下纸张涂层具有良好的油墨接受性,有助于印刷油墨的吸收固着,进而抑制网点扩大和颜色整体阶调再现范围变大。结论颜料协同改性涂布添加SiO_2有助于改善装饰原纸的物理性能和印刷适性。
[Abstract]:Aim to study the effect of pigment synergism on the properties of decorative base paper, to improve the surface structure of paper and optimize its physical properties. Methods Broad-leaved wood pulp and coniferous wood pulp (the absolute mass ratio of effective component was 4:1) were blended to beating degree (SR) 38 掳, then added titanium dioxide filler Pam Pae, aluminum sulfate and so on to make decorative base paper, PVA, cationic starch was used as adhesive agent, distilled water was distilled. Pigment (TiO_2, in cooperation with Al_2O_3,Clay,Al_2SiO_5,SiO_2), dispersant, defoamer, lubricant, water-retaining agent are used to prepare coatings for decorative paper surface. Coating machine and calender are used to coat the base paper, then impregnate the press board, and print with gravure. To explore the effect of pigment composite coating on base paper coating structure and printing adaptability. Results the addition of certain SiO_2 pigments to the co-modification of pigments can help the paper surface to be effectively and uniformly coated, and the fine pigment particles can be observed, forming a good tight coating structure. The decorative base paper coating contains SiO_2 synergistic pigment. The water absorption height was increased by 135, the smoothness increased by 130, the dry tensile strength increased by 175 and the wet tensile strength increased by 160. In the aspect of printing performance, the paper coating with synergistic modification and SiO_2 coating has good ink acceptability under relatively small coating thickness, which is helpful to the absorption and fixation of printing ink. Then restrain dot expansion and color overall tone reproduction range becomes larger. Conclusion pigment co-coating with SiO_2 is helpful to improve the physical properties and printing adaptability of decorative base paper.
【作者单位】：天津科技大学;
【基金】：天津市高等学校国家级大学生创新创业训练计划(201510057013)
【分类号】：TS727

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