Three-dimensionally shaped object forming sheet, three-dimensionally shaped object and production method for same, and production method for decorated three-dimensional object

Patent metadata

Field	Value
Publication number	US-11685185-B2
Application number	US-202117141826-A
Country	US
Kind code	B2
Filing date	Jan 5, 2021
Priority date	Jul 27, 2017
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

A three-dimensionally shaped object forming sheet includes: a thermally expansive layer distending at a predetermined temperature or higher; a base laminated on one side thereof with the thermally expansive layer; and a photothermal conversion layer for converting absorbed light to heat, formed on at least one side, wherein the base includes a first base and a second base that are laminated; and the first base has an elasticity that is greater than an elasticity of the second base.

First claim

What is claimed is:

1. A production method for a three-dimensionally shaped object, comprising:
a step of producing a sheet by providing a thermally expansive layer on a main surface of a base on a side of a first base, the base including the first base and a second base that are laminated thereon;
a step of providing an electromagnetic wave heat conversion layer on a main surface of the base of the sheet on a side of the second base; and
an unevenness forming step of forming unevennesses on a surface of the sheet by causing the thermally expansive layer of a region corresponding to the electromagnetic wave heat conversion layer to distend by irradiating the electromagnetic wave heat conversion layer with electromagnetic waves of a predetermined wavelength,
wherein the first base and the second base have elasticities different from each other.

2. The production method for a three-dimensionally shaped object according to claim 1 ,
wherein an elasticity of the first base is greater than an elasticity of the second base; and
wherein the first base is a resin film comprising a polyethylene resin, a polypropylene resin, a polyvinyl alcohol resin, a polyvinyl chloride resin, or a polyurethane resin.

3. A production method for a three-dimensionally shaped object having unevennesses in a surface, the production method comprising sequentially performing:
a base laminating step of producing a base by laminating together a second base and a first base having a greater elasticity than an elasticity of the second base;
a thermally expansive layer forming step of forming, on a main surface of the base on a side of the first base, a thermally expansive layer that distends at a predetermined temperature or higher;
a photothermal conversion layer printing step of printing a photothermal conversion layer for converting absorbed light to heat and releasing the heat on a main surface of the base on a side of the second base; and
a light irradiation step of irradiating light so as to reach the photothermal conversion layer thereby causing the thermally expansive layer in a region where the photothermal conversion layer is formed to distend.

4. A production method for a decorated three-dimensional object having unevennesses in at least a portion of a surface, the production method comprising sequentially performing:
a base laminating step for producing a base by laminating a second base and a first base having a greater elasticity than an elasticity of the second base;
a thermally expansive layer forming step of forming, on a main surface of the base on a side of the first base, a thermally expansive layer that distends at a predetermined temperature or higher;
a photothermal conversion layer printing step of printing a photothermal conversion layer for converting absorbed light to heat and releasing the heat on a main surface of the base on a side of the second base;
a light irradiation step of irradiating light from the side of the second base of the base so as to reach the photothermal conversion layer thereby causing the thermally expansive layer in a region where the photothermal conversion layer is formed to distend; and
an affixing step of affixing the base to a surface of an article.

5. The production method for a decorated three-dimensional object according to claim 4 ,
wherein prior to the affixing step, a base peeling step of peeling and removing the second base from the first base is performed, and
wherein, in the affixing step, the first base is affixed to the surface of the article.

6. The production method for a decorated three-dimensional object according to claim 5 ,
wherein the first base is a resin film comprising a polyethylene resin, a polypropylene resin, a polyvinyl alcohol resin, a polyvinyl chloride resin, or a polyurethane resin.

7. The production method for a three-dimensionally shaped object according to claim 1 ,
wherein a thickness of the second base in a direction from a first side facing the first base toward a second side opposite to the first side is selected to transmit the heat emitted by the electromagnetic wave heat conversion layer from the second side of the second base to the thermally expansive layer to cause the thermally expansive layer to distend at the predetermined temperature or higher, and
wherein the second base is configured to be peelable from first base.

Assignees

• Casio Computer Co Ltd

Inventors

• Horiuchi Yuji
• Motoyanagi Yoshimune
• Mitsui Satoshi
• Takahashi Hideki

Classifications

• B32B27/306

  comprising vinyl acetate or vinyl alcohol (co)polymers · CPC title

• B32B27/08

  of synthetic resin · CPC title

• B32B2307/51

  Elastic · CPC title

• B32B27/36

  comprising polyesters · CPC title

• B32B2451/00

  Decorative or ornamental articles · CPC title