红蓝墨水字迹保护剂的研究

Research on the Protectant for Diffusion of Red and Blue Inks Writing

通过调节壳聚糖、醋酸、双氧水和水的质量比,制备了m_(壳聚糖):m_(醋酸):m_(双氧水):m_水=1.5∶1.6∶3.0∶100的防止红蓝墨水字迹扩散的保护剂。结果表明,保护剂处理后的纸样能够有效防止修裱过程中字迹遇水扩散。此外,采用保护剂保护后的染料字迹纸样经修裱后,纸张pH值不影响档案的保存,纸张耐久性良好,老化前后的耐折度、抗张强度下降不明显,字迹线条依然清晰,修裱平整,裱件粘接紧密,满足了档案字迹的修裱要求。

A kind of protectant for diffusion of red and blue inks writing was studied. When the mass ratio of chitosan,acetic acid,hydrogen peroxide and water was 1. 5,1. 6,3. 0,100,respectively,the optimum protectant could be prepared. The document samples treated with the protectant could prevent diffusion of red and blue inks writing in mounting process. In addition,the treated paper had a favourable durability without any significant decrease of folding endurance,tensile strength and other mechanical performance after aging testing. Furthermore,the p H value of tested paper did not affect the preservation of archives.