| abstract |
PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive which improves the bonding effect between a polyvinyl alcohol film and a triacetyl cellulose film, and improves the process efficiency and the quality of a polarizing plate. An adhesive material is formed from an aqueous polyvinyl alcohol solution and an aldehyde substance, and a catalyst is added to accelerate the reaction. The aldehyde substance is glyoxyl, the addition ratio thereof is about 0.01 wt% to 5 wt%, and the concentration of the aqueous polyvinyl alcohol solution is about 1 wt% to 10 wt%. [Selection] Figure 2 |