Pretreatment method for coating or printing

Patent metadata

Field	Value
Publication number	US-10737293-B2
Application number	US-201615577367-A
Country	US
Kind code	B2
Filing date	Jun 8, 2016
Priority date	Jun 8, 2015
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

A method for treating a metal substrate surface before coating or printing thereof, the method including preheating to 40° C. or above a specific metal substrate having a thermal conductivity of 10 W/mK or higher, and thereafter performing a flame treatment on the substrate surface, prior to coating or printing of the surface of the substrate with a coating material or an ink.

First claim

The invention claimed is:

1. A method for treating a coated steel sheet surface before forming patterns thereon by inkjet printing, the method comprising: preheating a coated steel sheet having a thermal conductivity of 10 W/mK or higher to 40° C. or above, and thereafter performing a flame treatment on the coated steel sheet surface, followed by inkjet printing of the coated steel sheet surface with an inkjet ink;
wherein a transport speed of the coated steel sheet is 10 m/min to 50 m/min.

2. The treatment method of claim 1 , wherein the coated steel sheet is preheated to 50° C. or above.

3. The treatment method of claim 1 , wherein the coated steel sheet is preheated to 60° C. or above.

4. The treatment method of claim 1 , wherein preheating is carried out in such a manner that the temperature of the coated steel sheet does not exceed 300° C.

5. The treatment method of claim 1 , wherein the coated steel sheet is subjected to the flame treatment using one or two gas burners.

6. The treatment method of claim 1 , wherein the inkjet printing is carried out using an actinic-ray curable ink.

7. The treatment method of claim 1 , wherein occurrence of condensation derived from the flame of a gas burner used in the flame treatment is suppressed.

8. A method for suppressing occurrence of condensation derived from the flame of a gas burner, the method comprising: bringing the temperature of a coated steel sheet during a flame treatment, which is performed by a gas burner prior to forming patterns on the coated steel sheet surface with an inkjet ink by inkjet printing, to 40° C. or above through preheating, wherein the coated steel sheet has a thermal conductivity of 10 W/mK or higher,
wherein a transport speed of the coated steel sheet is 10 m/min to 50 m/min.

9. The treatment method of claim 1 , wherein the patterns are multicolor.

Assignees

• Nisshin Steel Co Ltd

Inventors

• Satou Masaki
• Suzuki Seiju
• Hiraku Masaru
• Sugita Shuichi

Classifications

• B41M5/0011 Primary

  Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating (after-treatment of prints B41M7/00; printers for treating or overcoating copy materials before, during or after printing B41J11/0015) · CPC title

• C09D11/30

  Inkjet printing inks · CPC title

• C09D11/101

  Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing · CPC title

• B41J2/01

  Ink jet · CPC title

• B05D2202/25

  based on Al · CPC title