Foil image formation method

Patent metadata

Field	Value
Publication number	US-10350910-B2
Application number	US-201515326595-A
Country	US
Kind code	B2
Filing date	Jul 24, 2015
Priority date	Jul 25, 2014
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

The present invention addresses at least the problem of providing a method for forming a high-resolution foil image regardless of the hydrophilicity of a recording medium. In order to solve said problem, the present invention provides a method wherein an adhesive ink that is formed by dispersing or dissolving a polymer resin in water and in a water-soluble organic solvent is used as an adhesive for a foil, the adhesive is applied by means of inkjet printing, and a foil image is formed. The polymer resin of the adhesive ink is a polymer of a monomer that includes (meth)acrylic acid and a (meth)acrylic acid alkyl ester having a C 2-12 alkyl group, the acid value of the polymer resin being 50-120 mg KOH/g, and the glass transition temperature of the polymer resin being 30-110° C.

First claim

The invention claimed is:

1. A foil image forming method comprising:
dropping an actinic radiation-curable inkjet ink that comprises a gelling agent, a photocurable compound and a photopolymerization initiator and that undergoes sol-gel phase transition depending on a temperature, onto a recording medium to form an ink image comprising droplets of the actinic radiation-curable inkjet ink;
pressure bonding a transfer surface of transfer foil comprising a foil layer to the ink image to transfer the foil layer onto the ink image; and
irradiating the ink image with an actinic radiation to cure the actinic radiation-curable inkjet ink, allowing the foil layer to be fixed on the recording medium, wherein
the actinic radiation-curable inkjet ink comprises 0.5 to 10 mass % of the gelling agent based on a total mass of the actinic radiation-curable inkjet ink, and
a difference between a temperature of the recording medium in landing of the actinic radiation-curable inkjet ink and a sol-gel phase transition temperature of the actinic radiation-curable inkjet ink is 30° C. or more.

2. The foil image forming method according to claim 1 , wherein the difference between a temperature of the recording medium in landing of the actinic radiation-curable inkjet ink and a sol-gel phase transition temperature of the actinic radiation-curable inkjet ink is 30° C. or more and 70° C. or less.

3. The foil image forming method according to claim 1 , wherein the gelling agent is represented by general formula (1) or (2) below:
R 1 —CO—R 2   (1)

wherein R 1 and R 2 each represent a C 1-24 linear or branched hydrocarbon group, and any one of R 1 and R 2 comprises a C 12 or higher linear alkyl structure; and
R 3 —COO—R 4   (2)

wherein R 3 represents a C 1-24 linear or branched hydrocarbon group, R 4 represents a hydrogen atom or a C 1-24 linear or branched hydrocarbon group, and any one of R 3 and R 4 comprises a C 12 or higher linear alkyl structure.

4. The foil image forming method according to claim 1 , wherein the recording medium is a wallpaper material.

5. The foil image forming method according to claim 4 , wherein the wallpaper material comprises a non-woven fabric in which natural pulp and synthetic fiber are mixed.

Assignees

• Konica Minolta Inc

Inventors

• Miwa Hideya
• Ishikawa Takayuki
• Hiramoto Ryuichi
• Motani Hitomi

Classifications

• B32B37/1292

  selectively, e.g. in stripes, in patterns (B32B37/0076 takes precedence) · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title

• B32B2255/12

  on paper layer · CPC title

• E04F13/07 Primary

  composed of covering or lining elements; Sub-structures therefor; Fastening means therefor · CPC title

• B41M3/12

  Transfer pictures or the like, e.g. decalcomanias {(processes for producing decorative surface effects B44C1/00; B41M5/0256 takes precedence)} · CPC title