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Cover material and packaging container

一种基材、树脂的技术，应用在食品类包装用容器的热封盖材料,具有该盖材料的包装容器领域，能够解决防附着效果消失、填充粒子脱落、填充粒子粘接强度不充分等问题，达到可靠疏水功能、高防附着功能的效果

Inactive Publication Date: 2016-08-10
TOPPAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this antiadhesion layer has the following problems: its particles are fine, its heat resistance is poor, and its storage time in a high-temperature environment becomes long, thereby causing hydrophobic particles to sink into the hot-melt resin layer as a heat-sealing layer. , causing the anti-adhesion effect to disappear
[0012] However, in the laminate described in Patent Document 5, the diameter of the filled particles is large relative to the thickness of the thermoplastic resin, and the thermoplastic resin layer contains particles, so the adhesive strength of the filled particles in the laminate is insufficient.
In addition, since the thermoplastic resin flows easily when heated, the particles also move easily
Therefore, in the process of heat-sealing the container main body, etc., there is a problem that the required water-repellent function may not be exhibited due to the detachment of the filling particles from the laminated body, etc.

Method used

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  • Cover material and packaging container
  • Cover material and packaging container
  • Cover material and packaging container

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0067] figure 1 It is a sectional view showing an example of the layer structure of the lid material of the present invention. In the lid material 1A, a base material layer 10 (base material), an inorganic vapor-deposited film 2 , and a sealant layer 3 are laminated from the outside (the outside of the packaging container to which the lid material is bonded). An antiadhesive layer 4 for preventing the contents from adhering to the lid material 1A is formed on the innermost layer of the lid material joining the packaging container, that is, on the surface facing the contents packed in the packaging container.

[0068] As the substrate layer 10, films such as paper, polyethylene terephthalate resin, stretched olefin resin such as polyethylene and polypropylene, polyamide resin, polyvinyl chloride resin, cellulose acetate, cellophane, etc. can be used. , or a laminate made of these materials, or the like. In addition, secondary processing such as printing, vapor deposition, and...

no. 2 approach

[0086] Below, refer to Figure 4 with Figure 5 A second embodiment of the present invention will be described.

[0087] Figure 4 It is an enlarged cross-sectional view showing a cover material 1B of the second embodiment. The cover material 1B has: a base material 10 (base material layer), a concave-convex layer 20 formed on the base material 10, a sealant layer 30 (thermoplastic resin layer) made of a thermoplastic resin formed on the concave-convex layer 20, The anti-adhesion layer 40 (hydrophobic functional layer) arranged on the layer 30.

[0088] The material of the substrate 10 is not particularly limited as long as the resin contained in the concave-convex layer 20 is sufficiently bonded, and it is not particularly limited. For example, paper, plastic film, aluminum foil, and the like can be used. As the paper, fine paper, special fine paper, coated paper, art paper, cast coated paper, molded paper (simili paper), kraft paper and the like can be used. As the plas...

Embodiment 1

[0126]As the substrate layer, the thickness of 52.3g / m 2 The molded paper is laminated with an aluminum-evaporated polyethylene terephthalate film with a thickness of 16 μm. On the surface of the aluminum vapor-deposited polyethylene terephthalate film of the bonded laminated body, a primer layer is also coated. Curing type thermosetting resin formed. Then, a varnish-type sealant layer containing polyacrylate as a main component was further coated on the primer layer.

[0127] In the anti-adhesion layer, tetraethoxysilane Si(OC 2 h 5 ) 4 The hydrolyzed solution is fully mixed with the hydrophobic particle 5 dispersion liquid dispersed with alcohol, adjusted so that the solid content of the coating solution reaches 10%, and the adjusted coating solution is coated on the sealant layer, and then Drying forms an anti-adhesive layer.

[0128] In the antiadhesive layer 4, when the ratio between the metal oxide conversion amount of the metal alkoxide or its hydrolyzate as the b...

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Abstract

This cover material comprises a substrate, a sealant layer, microparticles having an average particle size of 5-1000 nanometers, and an anti-adhesion layer comprising a binder for affixing the microparticles to the sealant layer.

Description

[0001] This application is a divisional application of the application with the filing date of September 9, 2013, the application number of 201380046333.1, and the title of the invention "lid material and packaging container". technical field [0002] The present invention relates to a lid material and a packaging container, and more specifically, to a lid material having improved hydrophobicity of a surface contacting contents, and a packaging container having the lid material. In particular, the present invention relates to a heat-sealing lid material mainly suitable for food packaging containers. More specifically, it relates to a lid material used for packaging cup-shaped containers for yogurt, jelly, pudding, jam, mousse, etc., and preventing the contents from adhering to the inner surface. [0003] This application claims priority based on "Japanese Patent Application No. 2012-197152" filed in Japan on September 7, 2012 and "Japanese Patent Application No. 2013-090358" f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/12B32B27/08B32B27/20B32B27/28B32B27/32B32B27/34B32B27/36B65D77/20C08J7/04C09D5/16C08J7/043C08J7/048C08J7/052
CPCB32B7/12B32B27/08B32B27/20B32B27/283B32B27/32B32B27/34B32B27/36B65D77/2032C09D5/1681C09D5/1693B32B2307/73B32B2307/31B32B2255/10B32B2255/26B32B2264/102B32B2439/70B32B2439/40C08J7/0423Y10T428/24355Y10T428/25Y10T428/249984C08J7/048C08J7/052C08J7/043B65D43/0202B65D2543/00953
Inventor 今井伸彦卢和敬井口依久乃松尾龙吉
Owner TOPPAN INC
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