Ink set and laminate

Abstract

To provide an ink set that can form a coating film with excellent storage stability and high lamination strength. [Solution] An ink set comprising a primer composition containing a flocculant, a resin emulsion (a), a crosslinking agent (A), and water, and an aqueous inkjet ink composition containing a pigment, a resin (b), a resin emulsion (c), a crosslinking agent (B), a surfactant, a water-soluble solvent, and water, wherein the flocculant is contained in an amount of 10 parts by mass or less, the resin emulsion (a) in an amount of 0.5 to 5 parts by mass in terms of solid content, and the crosslinking agent (A) in an amount of 0.1 to 3 parts by mass in terms of solid content per 100 parts by mass of the primer composition, and the resin emulsion (a) is a nonionic resin emulsion, and the resin (b) is contained in an amount of 0.5 to 5 parts by mass in terms of solid content and the crosslinking agent (B) in an amount of 0.1 to 3 parts by mass in terms of solid content per 100 parts by mass of the aqueous inkjet ink composition.

Claims

1. A primer composition comprising a flocculant, a resin emulsion (a), a crosslinking agent (A), and water, An ink set comprising an aqueous inkjet ink composition containing a pigment, a resin (b), a resin emulsion (c), a crosslinking agent (B), a surfactant, a water-soluble solvent, and water, The primer composition contains, per 100 parts by mass, the flocculant in an amount of 10 parts by mass or less, the resin emulsion (a) in an amount of 0.5 to 5 parts by mass in terms of solid content, and the crosslinking agent (A) in an amount of 0.1 to 3 parts by mass in terms of solid content, wherein the resin emulsion (a) is a nonionic resin emulsion. The aqueous inkjet ink composition contains 100 parts by mass of the resin (b) in an amount of 0.5 to 5 parts by mass in terms of solid content, and the crosslinking agent (B) in an amount of 0.1 to 3 parts by mass in terms of solid content. The crosslinking agents (A) and (B) are at least one selected from the group consisting of oxazoline-based crosslinking agents and carbodiimide-based crosslinking agents. Ink set.

2. The ink set according to claim 1, wherein the resin emulsion (a) is a urethane-based resin emulsion.

3. The ink set according to claim 1 or 2, wherein the resin (b) has an acid value of 50 mg KOH / g or more.

4. An ink set according to claim 1 or 2, used for printing on a recording medium that does not absorb ink well, or a recording medium that does not absorb ink.

5. A laminate comprising, in this order, a printing layer formed from the ink set described in claim 1 or 2, an adhesive layer, and a sealant film on a recording medium that is poorly absorbent of ink or a recording medium that does not absorb ink.

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