Method for manufacturing printed matter, printing device, and printed can

Patent metadata

Field	Value
Publication number	US-12168360-B2
Application number	US-202117914448-A
Country	US
Kind code	B2
Filing date	Feb 22, 2021
Priority date	Mar 31, 2020
Publication date	Dec 17, 2024
Grant date	Dec 17, 2024

Abstract

The present invention addresses the problem of printing a high-resolution inkjet image on an article to be printed made of a metal or a resin by adjusting wet-spreading of an ink. The problem is solved by a method for producing a printed article which is an inkjet-printed product of an article to be printed made of a metal or a resin, the method including: an underlying layer forming step of forming an underlying layer containing a crosslinkable resin on at least a part of a surface of the article to be printed; a semi-crosslinking step of semi-crosslinking the crosslinkable resin contained in the underlying layer; and a printing step of performing inkjet printing on at least a part of a surface of the underlying layer after the semi-crosslinking step to form an inkjet-printed layer.

First claim

The invention claimed is:

1. A method for producing a printed article which is an inkjet-printed product of an article to be printed made of a metal or a resin, the method comprising:
an underlying layer forming step of forming an underlying layer comprising a crosslinkable resin on at least a part of a surface of the article to be printed;
a semi-crosslinking step of semi-crosslinking the crosslinkable resin comprised in the underlying layer; and
a printing step of performing inkjet printing on at least a part of a surface of the underlying layer after the semi-crosslinking step to form an inkjet-printed layer.

2. The method for producing a printed article according to claim 1 , further comprising an overcoat layer forming step of forming an overcoat layer on at least the inkjet-printed layer.

3. The method for producing a printed article according to claim 1 , wherein the crosslinkable resin is at least one resin selected from the group consisting of an acrylic resin, a polyester resin, an epoxy resin, a vinyl resin, a urethane resin, and an amino resin.

4. The method for producing a printed article according to claim 1 , wherein the underlying layer further comprises titanium oxide.

5. The method for producing a printed article according to claim 1 , wherein the semi-crosslinking step is performed by heating the underlying layer.

6. The method for producing a printed article according to claim 1 , wherein the semi-crosslinking step is performed by irradiating the underlying layer with an active energy ray.

7. The method for producing a printed article according to claim 1 , wherein the article to be printed is a metal sheet for a container, a metal container, a resin film for a container, or a resin container.

8. The method for producing a printed article according to claim 7 , wherein the article to be printed is a seamless beverage can.

9. A printing apparatus for performing inkjet printing on an article to be printed made of a metal or a resin, the printing apparatus comprising:
a transport device for transporting the article to be printed;
an underlying layer forming device for forming an underlying layer comprising a crosslinkable resin on at least a part of a surface of the article to be printed;
a curing device which is arranged downstream of the underlying forming device and is for semi-crosslinking the crosslinkable resin comprised in the underlying layer; and
an inkjet printing station which is arranged downstream of the curing device and which is for performing inkjet printing on at least a part of a surface of the underlying layer to form an inkjet-printed layer.

10. The printing apparatus according to claim 9 , comprising an overcoat layer forming device for forming an overcoat layer on the inkjet-printed layer.

11. A printed can which has an inkjet-printed layer and an underlying layer,
wherein the inkjet-printed layer is formed on at least a part of a surface of the underlying layer, and
the underlying layer is formed on at least a part of a surface of a can body and comprises a crosslinked resin.

12. The printed can according to claim 11 , wherein the inkjet-printed layer has a printing resolution of 300 dpi or more.

13. A metal can having an underlying layer, wherein the metal can has an underlying layer comprising a semi-crosslinked product of a crosslinkable resin on at least a part of a surface of a can body.

Assignees

• Toyo Seikan Co Ltd

Inventors

• Murakami Shigenobu
• Saito Yukiko
• Yamada Kouji

Classifications

• B41J3/413

  for metal · CPC title

• B41J3/40733

  Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles · CPC title

• B41J11/00212

  Controlling the irradiation means, e.g. image-based controlling of the irradiation zone or control of the duration or intensity of the irradiation · CPC title

• B41M7/0054

  using protective coatings or film forming compositions cured by thermal means, e.g. infrared radiation, heat · CPC title

• B41M5/0017

  Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying · CPC title