WATER-BASED LIQUID INK AND LAMINATE

The present invention addresses the problem of providing: a water-based liquid ink which has outstanding viscosity stability and which has both substrate adhesion as a cured coating and various types of coating strength; and a laminate that uses this water-based liquid ink. The present invention pertains to a water-based liquid ink characterized by comprising: a copolymer which is formed from one or more types of (meth)acrylate monomer and/or one or more types of vinyl monomer, and has an acid value constituting a glass transition temperature of 0-55 DEG C; 0.1-1 mass% of an acetylene surfactant and/or an alcohol-alkoxylate surfactant relative to the total ink amount; and 0.5-5 mass% of wax relative to the total ink amount. 本发明的课题在于提供粘度稳定性优异，还兼具固化涂膜的基材密合性、各种涂膜强度的水性液体墨液、以及使用了该水性液体墨液的层叠体。所述水性液体墨液的特征在于，其含有：共聚物，其由1种或2种以上的(甲基)丙烯酸酯系单体和/或1种或2种以上的乙烯基系单体形成，玻璃化转变温度为0℃～55℃且具有酸值；相对于墨液总量为0.1～1质量％的炔系表面活性剂和/或醇烷氧基化物系表面活性剂；以及相对于墨液总量为0.5～5质量％的蜡。