Aqueous primer and aqueous white inkjet ink composition set for lamination
An object is to improve the lamination strength and anti-blocking suitability of matters printed with an aqueous white inkjet ink composition containing titanium oxide, etc., on polyethylene terephthalate, polypropylene, nylon, and other resin films. As a means for achieving the object, an ink set is provided that includes a combination of: an aqueous primer composition containing an acrylic resin and/or vinyl acetate resin, and a calcium salt; and an aqueous white inkjet ink composition containing a polyester polyurethane resin emulsion with a rate of elongation of 500 to 1500% by 0.1 to 10.0 percent by mass in solids content in the aqueous white inkjet ink composition, a wax emulsion, and a titanium oxide.
1. An ink set that includes a combination of:
an aqueous primer composition containing an acrylic resin and/or vinyl acetate resin, and a calcium salt; and
an aqueous white inkjet ink composition containing a polyester polyurethane resin emulsion with a rate of elongation of 500 to 1500% by 0.1 to 10.0 percent by mass in solids content in the aqueous white inkjet ink composition, a wax emulsion, and a titanium oxide.
2. The ink set according to claim 1 , wherein the aqueous primer composition contains a chlorinated polyolefin.
3. The ink set according to claim 1 , which is for resin films.
4. The ink set according to claim 2 , which is for resin films.
5. A resin film for packaging bags, constituted by, as formed on one side of the resin film for packaging bags in this order:
a layer containing an acrylic resin and/or vinyl acetate resin, and a calcium salt; and
a white printed layer containing a polyester polyurethane resin with a rate of elongation of 500 to 1500% by 0.5 to 50.0 percent by mass, an acrylic resin, a wax, and a titanium oxide.
6. A resin film for packaging bags, constituted by, as formed on one side of the resin film for packaging bag in this order:
a layer containing an acrylic resin and/or vinyl acetate resin, and a calcium salt;
a printed layer having colors other than white; and
a white printed layer containing a polyester polyurethane resin with a rate of elongation of 500 to 1500% by 0.5 to 50.0 percent by mass, an acrylic resin, a wax, and a titanium oxide.