METHOD AND APPARATUS FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE SHEET

PURPOSE: A manufacturing method of a pressure-sensitive adhesive sheet is provided to prevent the degradation of an adhesive performance due to evaporation of monomers, and to stably maintain low oxygen concentration. CONSTITUTION: A manufacturing method of a pressure-sensitive adhesive sheet, which obtains a pressure adhesive layer by polymerizing a photo polymerizable composition layer(9) spread on a support comprises: a step of installing at least one inert gas supply unit(7) in the inlet of the support(1) of a spreading construction part(3), in a light irradiation part(4) which irradiating the photo polymerizable composition layer with light and the spreading construction part which spreads the photo polymerizable layer on the support; and a step of spraying inert gas to the support. [Reference numerals] (12) Second inert gas supply unit; (19) Coolant supplying device; (7) First inert gas supply unit