Hydraulic transfer film and method for manufacturing decorated molded article using same

Patent metadata

Field	Value
Publication number	US-10544310-B2
Application number	US-201314430726-A
Country	US
Kind code	B2
Filing date	Sep 27, 2013
Priority date	Sep 28, 2012
Publication date	Jan 28, 2020
Grant date	Jan 28, 2020

Abstract

Provided are a hydraulic transfer film capable of manufacturing a decorated molded product that expresses a design with a concavo-convex feeling by a hydraulic transfer method and having excellent transfer processability and a method for manufacturing a decorated molded product using the same. The hydraulic transfer film includes a water-soluble film having thereon a design layer, wherein the design layer has a low-gloss portion and a high-gloss portion; the low-gloss portion and the high-gloss portion are present at least within a plane on the water-soluble film side of the design layer; the low-gloss portion contains a binder resin and a deglossing agent; and the high-gloss portion is composed of a resin composition containing an acrylic polymer polyol and/or a cured product thereof.

First claim

The invention claimed is:

1. A hydraulic transfer film comprising a water-soluble film having thereon a design layer, wherein the design layer has a low-gloss portion and a high-gloss portion; the low-gloss portion and the high-gloss portion are present at least within an end face on the water-soluble film side of the design layer; the low-gloss portion contains a binder resin and a deglossing agent; and the high-gloss portion is composed of a resin composition containing an acrylic polymer polyol and not containing an isocyanate and not containing a curing agent.

2. The hydraulic transfer film according to claim 1 , wherein the resin composition that constitutes the high-gloss portion further contains a urethane resin.

3. The hydraulic transfer film according to claim 2 , wherein a glass transition point of the urethane resin is from 20 to 100° C.

4. The hydraulic transfer film according to claim 1 , wherein the binder resin that constitutes the low-gloss portion comprises one or more members selected from acrylic resins, polyester resins, urethane resins, polycarbonate resins, vinyl chloride-vinyl acetate copolymers, polyvinyl butyral resins, and cellulose nitrate.

5. The hydraulic transfer film according to claim 1 , wherein a compounding amount of the deglossing agent that constitutes the low-gloss portion is from 0.5 to 50% by mass.

6. The hydraulic transfer film according to claim 1 , wherein a pattern layer is further provided on the design layer.

7. The hydraulic transfer film according to claim 1 , wherein the design layer comprises the low-gloss portion formed in a pattern shape and the high-gloss portion formed so as to cover a surface of the low-gloss portion opposite the water-soluble film side of the design layer and so as to cover a region where the low-gloss portion on the water-soluble film is not provided.

8. The hydraulic transfer film according to claim 7 , wherein the low-gloss portion and the high-gloss portion are provided directly on and in contact with the water-soluble film.

9. The hydraulic transfer film according to claim 7 , wherein a further layer is provided between the water-soluble film and the design layer such that the low-gloss portion and the high-gloss portion are not in contact with the water-soluble film.

10. The hydraulic transfer film according to claim 1 , wherein the design layer comprises the high-gloss portion formed in a pattern shape and the low-gloss portion formed so as to cover a surface of the high-gloss portion opposite the water-soluble film side of the design layer and so as to cover a region where the high-gloss portion on the water-soluble film is not provided.

11. The hydraulic transfer film according to claim 1 , wherein the design layer comprises the low-gloss portion formed in a pattern shape and the high-gloss portion formed so as to cover a region where the low-gloss portion on the water-soluble film is not provided.

12. The hydraulic transfer film according to claim 1 , wherein the low-gloss portion and the high-gloss portion are provided directly on and in contact with the water-soluble film.

13. The hydraulic transfer film according to claim 1 , wherein a further layer is provided between the water-soluble film and the design layer such that the low-gloss portion and the high-gloss portion are not in contact with the water-soluble film.

14. The hydraulic transfer film according to claim 1 , wherein a ratio of the resin composition of which the high-gloss portion is composed is 5% by mass or less relative to the binder resin contained in the low-gloss portion.

15. The hydraulic transfer film according to claim 1 , wherein a ratio of the resin composition of which the high-gloss portion is composed is 3% by mass or less relative to the binder resin contained in the low-gloss portion.

16. The hydraulic transfer film according to claim 1 , wherein a ratio of the resin composition of which the high-gloss portion is composed is 1% by mass or less relative to the binder resin contained in the low-gloss portion.

17. A method for manufacturing a decorated molded product using the hydraulic transfer film according to claim 1 and including the following steps (a) to (d):
Step (a): a step of floating the hydraulic transfer film on a water surface such that the water-soluble film side faces on the water surface;
Step (b): a step of coating an activator composition on the design layer side of the hydraulic transfer film;
Step (c): a step of pressing a transfer object onto the hydraulic transfer film having gone through the steps (a) and (b) and bringing the design layer into intimate contact with the surface to be transferred of the transfer object by a hydraulic pressure; and
Step (d): a film stripping step of removing the water-soluble film from the surface to be transferred of the transfer object.

Assignees

• Sutou Masatoshi
• Iizuka Takeshi
• Sendai Takami
• Dainippon Printing Co Ltd

Inventors

• Sutou Masatoshi
• Iizuka Takeshi
• Sendai Takami

Classifications

• B29K2075/00

  Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material · CPC title

• C09D5/00 Primary

  Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes · CPC title

• Y10T428/24802

  Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] · CPC title

• B44C1/175

  Transfer using solvent · CPC title

• C09D101/18

  Cellulose nitrate · CPC title