明胶对宣纸性能的影响

Effect of Gelatin on Xuan Paper's Properties

明胶是我国传统熟宣纸生产、字画装裱中常用的材料之一。通常明胶与明矾按照一定的比例配制成胶矾水,涂布于纸张表面起到固色防洇化的作用。本文研究了明胶作用于生宣纸之后其抗张强度、耐折度、酸度、白度的变化,实验结果表明:明胶作用于纸张之后,纸张的抗张强度、耐折度等显著提高,有益于纸张的耐久保存;湿热老化过程中,明胶对纸张的酸化有一定的促进作用,但对纸张白度的影响不明显。

Gelatin is one of the common materials in China＇s traditional Shu Xuan paper producing and calligraphy and painting mounting. Alum glue water is a mixture of gelatin and alum according to certain proportion, usually, which is coated on paper＇s surface to immobilize the color and prevent the color spreading. This paper studies the change of the Sheng Xuan paper＇s tensile strength, folding resistance, acidity, whiteness after coating gelatin, the experimental results demonstrate that after coating gelatin, paper＇s tensile strength and folding degree increased significantly, which is beneficial to paper＇s durable preservation. In wet and heat aging process, gelatin has a certain promoting effect on acidification, while, the effect of gelatin on whiteness is not obvious.