PURPOSE: To improve adhesion property between a photosensitive resin and a substrate by incorporating a specified copolymer polyester, polyfunctional isocyanate, and a compd. having hydroxyl groups and acryloil or methacryloil groups into the adhesive layer.
CONSTITUTION: A photosensitive resin layer for water-developable flexographic printing is formed on an adhesive layer on a substrate. The adhesive layer contains a mixture of 90-50wt.% copolymer polyester having ≤10°C glass transition temp. and 10-50wt.% copolymer polyester having ≥50°C glass transition temp. Further, the adhesive layer contains polyfunctional isocyanate and a compd. having hydroxyl groups and acryloil or methacryloil groups. Thereby, adhesion strength of the adhesive layer to the photosensitive resin layer for water-developable flexographic printing can be maintained even when the adhesive layer formed on the substrate is left for a long tide. Further, the photosensitive resin layer does not peel from the substrate when the layer is developed.
OYOKU AKITADA
NANHEI MASARU
| JPS58174945A | 1983-10-14 | |||
| JPS60146235A | 1985-08-01 | |||
| JPS62167383A | 1987-07-23 |