Manufacturing method for printed matter, manufacturing method for foam, foaming inhibition ink, forming method for three-dimensional formed object, and forming system for three-dimensional formed object

Patent metadata

Field	Value
Publication number	US-11780251-B2
Application number	US-201917295046-A
Country	US
Kind code	B2
Filing date	Nov 19, 2019
Priority date	Nov 20, 2018
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

Provided are a manufacturing method for a foamable printed matter, a manufacturing method for a foam and a foaming inhibition ink. The manufacturing method for a printed matter is a manufacturing method for a foamable printed matter that foams to form an irregular pattern on its surface, the method including a printing step of inkjet-printing a foaming inhibition ink on a printing medium having a layer of a foamable resin composition containing a chemical foaming agent, under a temperature condition lower than a softening temperature of the foamable resin composition, the foaming inhibition ink containing: a foaming inhibitor that deteriorates a heat decomposing ability of the foamable resin composition; and a solvent that dissolves the foaming inhibitor when the foaming inhibitor is solid, is compatible with the foaming inhibitor when the foaming inhibitor is liquid, and is able to move the foaming inhibitor into the foamable resin composition.

First claim

The invention claimed is:

1. A manufacturing method for a printed matter that is foamable and foams to form an irregular pattern on a surface of the printed matter, comprising:
a printing step of inkjet-printing a foaming inhibition ink on a printing medium having a layer of a foamable resin composition containing a chemical foaming agent, under a temperature condition lower than a softening temperature of the foamable resin composition,
wherein a resin of the foamable resin composition comprises a vinyl chloride-based resin or a non-vinyl chloride-based thermoplastic resin;
wherein when the resin of the foamable resin composition is the vinyl chloride-based resin, the foaming inhibition ink comprises:
a foaming inhibitor that deteriorates a heat decomposing ability of the foamable resin composition, wherein the foaming inhibitor comprises 1-[N,N-bis(2-ethylhexyl)aminomethyl]methylbenzotriazole; and
a solvent that dissolves the foaming inhibitor when the foaming inhibitor is solid, is compatible with the foaming inhibitor when the foaming inhibitor is liquid, and is able to move the foaming inhibitor into the foamable resin composition, wherein the solvent comprises diethylene glycol ethyl methyl ether and ε-caprolactone.

2. The manufacturing method for the printed matter as set forth in claim 1 , wherein
the foamable resin composition further comprises: a foaming aid of a metal-base that promotes a foaming reaction of the chemical foaming agent;
the foaming inhibitor is a chelating agent that chelates a metal of the foaming aid; and
the solvent is a non-aqueous solvent when the resin of the foamable resin composition is the vinyl chloride-based resin, and is an aqueous solvent when the resin of the foamable resin composition is the non-vinyl chloride-based thermoplastic resin.

3. The manufacturing method for the printed matter as set forth in claim 1 , wherein
the printing step further comprises: inkjet-printing a coloring ink containing a colorant;
the coloring ink is a non-aqueous ink when the resin of the foamable resin composition is the vinyl chloride-based resin; and
the coloring ink is a latex ink when the resin of the foamable resin composition is the non-vinyl chloride-based thermoplastic resin.

4. A manufacturing method for a foam having an irregular pattern on a surface of the foam, comprising:
a heating step of heating the printed matter as set forth in claim 1 at a temperature at which a difference occurs between heat decomposition of a region where the foaming inhibition ink is printed and heat decomposition of a region where the foaming inhibition ink is not printed, of the layer of the foamable resin composition to foam at least a part of the chemical foaming agent to make the region where the foaming inhibition ink is printed into a recess,
wherein the foaming inhibition ink comprises a black colorant that emphasize the recess.

5. A manufacturing method for a foam having an irregular pattern on a surface of the foam, comprising:
a heating step of heating the printed matter as set forth in claim 2 at a temperature at which a difference occurs between heat decomposition of a region where the foaming inhibition ink is printed and heat decomposition of a region where the foaming inhibition ink is not printed, of the layer of the foamable resin composition to foam at least a part of the chemical foaming agent to make the region where the foaming inhibition ink is printed into a recess,
wherein the foaming inhibition ink comprises a black colorant that emphasize the recess.

6. A manufacturing method for a foam having an irregular pattern on a surface of the foam, comprising:
a heating step of heating the printed matter as set forth in claim 3 at a temperature at which a difference occurs between heat decomposition of a region where the foaming inhibition ink is printed and heat decomposition of a region where the foaming inhibition ink is not printed, of the layer of the foamable resin composition to foam at least a part of the chemical foaming agent to make the region where the foaming inhibition ink is printed into a recess,
wherein the foaming inhibition ink comprises a black colorant that emphasize the recess.

7. A foaming inhibition ink for inkjet printing on a printing medium having a layer of a foamable resin composition containing a chemical foaming agent, comprising:
a foaming inhibitor that deteriorates a heat decomposing ability of the foamable resin composition; and
a solvent that dissolves the foaming inhibitor when the foaming inhibitor is solid, is compatible with the foaming inhibitor when the foaming inhibitor is liquid, and is able to move the foaming inhibitor into the foamable resin composition,
wherein a resin of the foamable resin composition comprises a vinyl chloride-based resin or a non-vinyl chloride-based thermoplastic resin;
wherein
when the resin of the foamable resin composition is the vinyl chloride-based resin, the foaming inhibitor comprises 1-[N,N-bis(2-ethylhexyl)aminomethyl]methylbenzotriazole, and the solvent is a non-aqueous solvent when the resin of the foamable resin composition is the vinyl chloride-based resin, wherein the solvent comprises diethylene glycol ethyl methyl ether and ε-caprolactone;
when the resin of the foamable resin composition is the non-vinyl chloride-based thermoplastic resin, the solvent is an aqueous solvent.

8. A forming method for a three-dimensional formed object, comprising:
an applying step of applying an ink to a medium in sheet shape, wherein the medium has a foaming layer that foams by being heated, and the ink is for controlling a foaming of the foaming layer;
a cutting step of performing a cutting that foil is a perforation or a notch in the medium; and
a foaming step of foaming the foaming layer by heating the medium after the applying step and the cutting step.

9. The forming method for the three-dimensional formed object as set forth in claim 8 , further comprising:
a printing step of printing an image on the medium.

10. The forming method for the three-dimensional formed object as set forth in claim 9 , wherein
in the printing step, a plurality of images arranged in a width direction of the medium are printed on the medium, and
in the cutting step, the perforation or the notch extending along a length direction of the medium is formed between the plurality of images.

11. The forming method for the three-dimensional formed object as set forth in claim 8 , wherein
the applying step and the cutting step are performed by using an identical apparatus.

12. The forming method for the three-dimensional formed object as set forth in claim 8 , wherein
in the cutting step, the medium is cut to form the perforation.

13. The forming method for the three-dimensional formed object as set forth in claim 12 , wherein
in the cutting step, the perforation is formed in which a ratio of a length of an uncut portion to a length of a cut portion ranges from 1:1 to 1:5.

Assignees

• Mimaki Eng Co Ltd

Inventors

• Yamada Yoshimi
• Yokomichi Ayaka

Classifications

• B41J11/68 Primary

  cutting parallel to the direction of paper feed · CPC title

• B29C44/022

  Foaming unrestricted by cavity walls, e.g. without using moulds or using only internal cores · CPC title

• B41M5/0041

  Digital printing on surfaces other than ordinary paper (B41M5/0082 takes precedence; printing on textiles D06P5/00) · CPC title

• B29C2035/0822

  using IR radiation · CPC title

• B41M3/06 Primary

  Veined printings; Fluorescent printings; Stereoscopic images; Imitated patterns, e.g. tissues, textiles · CPC title