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Laminated polypropylene film

A technology of polypropylene film and resin layer, which is applied in the direction of coating, layered products, polyurea/polyurethane coatings, etc., and can solve the problems that cannot meet the transferability and adhesion of printing coatings, and the transferability and adhesion of printing coatings Problems such as changes in printing properties and reduction in printing appearance, etc., to achieve the effects of not easy to reduce the printing appearance, good transferability and adhesion, and long-term stable quality

Active Publication Date: 2021-01-05
TOYOBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these methods have the following problems: the problem of deterioration of the printed appearance due to electrification, and the problem of changes or reductions in the transferability and adhesion of the printing paint due to time.
[0008] However, although it can prevent the electrification of the polypropylene film substrate, it cannot satisfy the transferability and adhesion to the printing paint

Method used

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  • Laminated polypropylene film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6、 comparative example 1～5

[0113] On the corona-treated surface of a biaxially oriented polypropylene film (Toyobo P2108, thickness 40 μm), the coating solution used to form the resin layer was applied by gravure coating, and dried at a temperature of 100° C. for 30 seconds, the resin-layered polypropylene films of Examples 1-6 and Comparative Examples 1-5 were obtained.

[0114] Table 1 shows the composition of the coating liquid used to form the resin layer and the thickness of the resin layer after coating and drying.

[0115] In addition, the properties of the obtained laminated polypropylene film are shown in Table 1.

[0116] The laminated polypropylene films of Examples 1 to 6 have antistatic properties and satisfy transferability and adhesion to UV ink.

[0117] On the other hand, Comparative Example 1 and Comparative Example 4 did not have a polyurethane resin, and thus could not satisfy transferability to UV ink.

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Abstract

Provided is a laminated polypropylene film that has excellent adhesiveness and transfer properties with respect to a printing application material, the laminated polypropylene film having low static electricity and exceptional transparency. This laminated polypropylene film having a resin layer on at least one surface of a polypropylene substrate, wherein: the resin layer includes at least a polyurethane resin, an ethylene-based copolymer resin, and an anti-static agent; and the resin layer contains 5-50 parts by mass of the ethylene-based copolymer resin relative to 100 parts by mass of the polyurethane resin.

Description

technical field [0001] The present invention relates to a laminated polypropylene film having good printability and adhesiveness. More specifically, it relates to a laminated polypropylene film which is excellent in transferability and adhesiveness to UV ink in a printing finishing process, and is also excellent in transparency. Background technique [0002] Many packaging materials used for food, pharmaceuticals, and industrial products use films made of plastics such as polyolefins, polyesters, and polyamides as base materials. In particular, polypropylene films among polyolefin films are widely used in a wide range of applications such as food, packaging of various products, electrical insulation, and surface protection films due to their excellent mechanical properties, thermal properties, electrical properties, and optical properties. [0003] However, since the polypropylene film does not have a polar group as a functional group in its molecular structure, its surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/40B32B27/30B32B27/20B32B33/00B32B7/022B65D65/40C08J5/18C08J7/04C08J7/043C08J7/044
CPCC08J7/043C08J7/044C09J175/04C08G18/7621C08G18/4216C08G18/0819C08J2323/12C08J2475/04C08J2423/08C08K5/19C08L33/08C09D175/04B65D65/42
Inventor 泽田薫山田浩二
Owner TOYOBO CO LTD
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