| 摘要 |
An object of the present invention is to provide an aqueous resin composition that can form a cured resin layer that exhibits high adhesion to a base member and high moisture-heat resistance. The present invention relates to a heat-sealing material including an aqueous urethane resin (A), an aqueous polyolefin resin (B), a cross-linking agent (C), and an aqueous medium (D), wherein the cross-linking agent (C) contains an alkylated methylolmelamine resin (c1) and an epoxy compound (c2); a content of the alkylated methylolmelamine resin (c1) is in a range of 5% by mass to 50% by mass; one or both of the aqueous urethane resin (A) and the aqueous polyolefin resin (B) have a functional group [X] that is capable of reacting with an epoxy group; and a ratio of an amount of substance of an epoxy group of the epoxy compound (c2) to a total amount of substance of the functional group [X] is 5/1 to 1/5. |
