多层涂布制备石头纸基相纸的研究

Manufacture of Photographic Paper Based on Multilayer Coated Rich Mineral Paper

目的研制吸墨性优良的多层涂布石头纸基喷墨打印相纸。方法文中采用表面改性技术改进石头纸基相纸表面结构并通过主观与客观对比评价不同涂层结构的改进效果的方法,研究强吸墨性的石头纸基喷墨打印相纸的造纸工艺。结果其配方如下:底层,m(PCC)∶m(白乳胶)为100∶12;中层,m(沉淀二氧化硅)∶m(胶体二氧化硅)∶m(白乳胶)∶m(PVA-1799)为70∶30∶10∶10;面层,m(胶体二氧化硅)∶m(纳米三氧化二铝)∶m(PVA-1799)为80∶20∶20。涂布量为15 g/m2,经压光工艺处理后的石头纸较石头纸原纸白度提高了6.9%,光泽度提高了151.1%,平滑度提高了976.9%,K色色密度提高了47.4%;较市售的260 g/m2高光相纸平滑度提高了1650%,K色色密度提高了14.3%。结论三层涂布配方效果最佳。

This experiment aimed to develop a kind of photographic paper with excellent ink absorbency based on multilayer coated rich mineral paper. Surface modification technology was used to modify the surface structure of the photographic paper based on coated rich mineral paper and the methods for modification of different layer structures were subjectively and objectively compared and evaluated to research the paper making process of photographic paper with excellent ink absorbency based on coated rich mineral paper. The formula was as follows：bottom layer was PCC/white latex=100∶12; mid-layer was precipitated silica/colloidal silica/white latex/PVA-1799=70∶30∶10∶10; top layer was colloidal silica/nano aluminum oxide/PVA-1799=80∶20∶20. The coating amount was 15 g/m2. After the process, compared with base paper, the brightness of the coated rich mineral paper was increased by 6.9%, glossiness was raised by 151.1%, smoothness was improved by 976.9%, color density（K） was increased by 47.4%. Compared with the commercial 260 g/m2 high glossy photo paper, the smoothness was improved by 1650%, color density（K） was increased by 14.3%. The relevant data test showed the overall performance and print quality of triple coating was the best.