坚膜反应对染印法空白片性能的影响

本文研究了在染印法空白片的各种坚膜条件下媒染层的物理机械性能和染印性能,包括媒染层的断裂强度、空白片的膨胀度、染色密度和线格清晰度。铬矾坚膜的效果用媒染层中铬的含量和媒染层经水萃取后所得交联物含量来表示。在此基础上计算出用铬矾坚膜的媒染层的交联密度。为排除空白片中乳剂层的干扰,采用了单独处理媒染层的方法。得到了在本实验中获得空白片最佳清晰度和最佳物理机械性能的条件,并对媒染层中主要物质分子间的相互关系进行了探讨。

THE INFLUENCE OF THE HARDENING REACTION ON THE PROPERTIES OF IMBIBITION BLANK FILM

The hardening reaction is very important for the utilization of the blank film. It can improve physical and mechanical properties of the film. However, for the imbibition blank film, it is also of great significance to know how the dye transfer printing properties are influenced by the hardening reaction, aside from the physical and mechanical properties. For this purpose the hardening value of the mordant containing layer was observed rather than the melting point of the film. The hardening value could be. determined by water extraction of the mordant-containing layer. The crosslinkage density of the layer was measured by chromium analysis using colorimetric method and neutron Activation method. The influence of the hardening value on the definition and the colour density of the film was also investigated. The tensile strength of the layer and the degree of swelling of the blank film, which was influenced by the addition of the hardening agent were also determined. The optimum definition of the layer was obtained and the relation between the definition and the crosslinkage density was also determined.