| 摘要 |
Disclosed is a coating liquid for impurity diffusion comprising: (A) a polyvinyl alcohol resin having a 1,2-diol structural unit represented by the following general formula (1):
wherein R 1 , R 2 and R 3 each independently represent a hydrogen atom or an organic group, X represents a single bond or a bond chain, and R 4 , R 5 and R 6 each independently represent a hydrogen atom or an organic group; (B) an impurity; and (C) water. The coating liquid for impurity diffusion is highly stable, and exhibits excellent printing properties; for example, when printing is continuously carried out for a longer period of time or resumed after a pause. Accordingly, the coating liquid for impurity diffusion is particularly suitable as a coating liquid for impurity diffusion for use for applying by screen printing. |
