Molding film and molding transfer foil using same

Patent metadata

Field	Value
Publication number	US-10479133-B2
Application number	US-201515323829-A
Country	US
Kind code	B2
Filing date	Jun 24, 2015
Priority date	Jul 7, 2014
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A film for molding has an annular olefin-based resin as the main component thereof and is characterized by an X surface and a Y surface both having a surface glossiness of no more than 50%, when one surface is the X surface and the other surface is the Y surface. The film has excellent winding properties during processing, has high design properties and excellent fingerprint wipe-off properties for the surface of product members (molded members after molding and decoration) when the film is used as a transfer foil for molding.

First claim

The invention claimed is:

1. A molding film comprising mainly a cyclic olefin-based resin, wherein
when an X surface represents one surface of the film and a Y surface represents another surface of the film, the X surface and the Y surface both have a surface glossiness of 50% or less, and
a ratio between thermal shrinkage in a transverse direction and thermal shrinkage in a machine direction at 80° C. satisfies −2< the thermal shrinkage in the transverse direction/the thermal shrinkage in the machine direction <−0.5.

2. The molding film according to claim 1 , wherein when the X surface represents a surface having a surface glossiness equal to or greater than a surface glossiness of the Y surface, the X surface has a surface roughness SRa of not less than 100 nm and not more than 1500 nm and the Y surface has a surface roughness SRa of not less than 100 nm and not more than 2000 nm.

3. The molding film according to claim 1 , which comprises an A layer and a B layer, wherein
when the A layer contains a cyclic olefin-based resin of not less than 50% by mass and not more than 99% by mass and a polyethylene-based resin and/or polypropylene-based resin of not less than 1% by mass and not more than 40% by mass in total with respect to 100% by mass of the layers in total; and
the B layer contains a cyclic olefin-based resin of not less than 50% by mass and not more than 99% by mass and a polyethylene-based resin and/or polypropylene-based resin of not less than 1% by mass and not more than 40% by mass in total with respect to 100% by mass of the layers in total,
the A layer is greater than the B layer in terms of a total content (% by mass) of the polyethylene-based resin and/or polypropylene-based resin in the layers.

4. A molding transfer foil comprising the molding film according to claim 1 , a design layer and an adhesive layer formed in this order on the molding film, wherein
when a Y surface represents a surface having a surface glossiness equal to or lower than a surface glossiness of an X surface, the Y surface is an outmost surface of one side of the molding transfer foil.

5. The molding film according to claim 2 , which comprises an A layer and a B layer, wherein
when the A layer contains a cyclic olefin-based resin of not less than 50% by mass and not more than 99% by mass and a polyethylene-based resin and/or polypropylene-based resin of not less than 1% by mass and not more than 40% by mass in total with respect to 100% by mass of the layers in total; and
the B layer contains a cyclic olefin-based resin of not less than 50% by mass and not more than 99% by mass and a polyethylene-based resin and/or polypropylene-based resin of not less than 1% by mass and not more than 40% by mass in total with respect to 100% by mass of the layers in total,
the A layer is greater than the B layer in terms of a total content (% by mass) of the polyethylene-based resin and/or polypropylene-based resin in the layers.

6. A molding transfer foil comprising the molding film according to claim 2 , a design layer and an adhesive layer formed in this order on the molding film, wherein
when a Y surface represents a surface having a surface glossiness equal to or lower than a surface glossiness of an X surface, the Y surface is an outmost surface of one side of the molding transfer foil.

7. A molding transfer foil comprising the molding film according to claim 3 , a design layer and an adhesive layer formed in this order on the molding film, wherein
when a Y surface represents a surface having a surface glossiness equal to or lower than a surface glossiness of an X surface, the Y surface is an outmost surface of one side of the molding transfer foil.

Assignees

• Toray Industries

Inventors

• Kitamura Yutaka
• Tabata Hisataka

Classifications

• B32B2307/736

  Shrinkable · CPC title

• B32B2307/538

  Roughness · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title

• B32B2307/40

  having particular optical properties · CPC title

• B32B2307/406

  Bright, glossy, shiny surface · CPC title