白色水性油墨颜料分散性对墨膜表面形貌的影响

Influence of Dispersion on the Surface Morphology of White Water-Based Ink

均匀一致性是控制印刷质量的一个重要指标,它与墨膜的表面形貌有着密切的关系。在印刷中,白色油墨通常作为打底油墨,其墨膜的表面形貌对表层图文再现起着关键的作用。油墨分散性是影响墨膜表面形貌的重要因素之一。为了探讨油墨分散性与墨膜表面形貌的关系,通过控制油墨制备工艺,制备三组分散性不同的油墨样品。首先测试油墨颜料粒径大小及其分散状态,将油墨涂布在塑料薄膜上,拍摄墨膜表面形貌,分析白色水性油墨分散性对表面形貌的影响。实验结果表明:分散性好的油墨表面形貌趋于平滑;反之则较为粗糙。

Uniformity is an important factor in printing quality control,and it has a close relation with surface morphology of ink film.The white ink usually serves as rendering ink in printing,and its ink film morphology,which is assumed to be influenced by the dispersion,plays a key role in printed reproduction on its surface.In order to investigate the relation between ink dispersion and morphology of ink film,ink samples with different dispersion are prepared by changing the dispersion time.Firstly,the diameter size and distribution of the inks were tested;Then,it was coated onto the surface of plastic film.The morphology of ink film was converted into 3D image to examine the white ink's dispersion and its influence on morphology.The results showed that well dispersed inks tend to have more smooth surface morphology;Conversely,unevenly dispersed inks demonstrate rough surface morphology.