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Packaging, barrier packaging material, and packaging bag

一种阻隔层、基材层的技术，应用在包装、包装纸、家用包装等方向，能够解决变差、破损撕裂性、阻气膜与密封剂膜密合强度降低等问题，达到保护性能高、热封性良好、高效制造的效果

Pending Publication Date: 2019-07-16
TOPPAN INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, for the gas-barrier packaging materials of the prior art disclosed in the above-mentioned Patent Document 3 and Patent Document 4, especially for liquid, pasty foods, cosmetics, etc. whose contents contain substances such as permeability, volatility, or oil, etc. The gas-barrier packaging material for packaging has the problem that the adhesive strength between the gas-barrier film and the sealant film decreases over time, resulting in damage or poor tearability

Method used

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  • Packaging, barrier packaging material, and packaging bag
  • Packaging, barrier packaging material, and packaging bag
  • Packaging, barrier packaging material, and packaging bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0103] The present invention will be described in more detail below through examples. However, the present invention is not limited by the following examples. In addition, the packaging material of each Example was evaluated according to the following method and index.

[0104] 1) Extrusion processing adaptability

[0105] Measure the width of the resin directly below the die of the extruder and the width of the resin below the die at a distance of 100 mm, and calculate the shrinkage from the difference.

[0106] 2) Lubricity

[0107] The dynamic friction coefficient of the second thermoplastic resin layer side was measured in accordance with Japanese Industrial Standard K7125:1999.

[0108] 3) High-speed filling adaptability

[0109] Using the automatic filling machine DANGAN type3 manufactured by Taisei Lamick Co., Ltd., the bag is filled while forming a three-side sealed bag shape with a width of 80 mm and a feed of 90 mm. The test was performed by changing the conveyi...

Embodiment A1

[0111] Using extruders in series, after coating the anchor coating agent on the substrate layer, extrude the resin of the middle layer from the first extrusion as the first thermoplastic resin layer, and extrude the seal from the second extrusion in a continuous process layer of resin as the second thermoplastic resin layer. As the substrate layer, a stretched nylon film with a thickness of 15 μm was used. The anchor coating is a commercially available general polyurethane resin anchor coating so that the coating thickness after drying becomes 0.7 μm. The resin in the middle layer is mixed with a density of 0.91g / cm in a weight ratio of 8:2 3 LLDPE with a density of 0.92g / cm 3 LDPE, and adjust the average density to 0.912g / cm 3 The resin is extruded with a thickness of 25 μm. The resin used in the sealing layer is mixed with a weight ratio of 8:2 and a density of 0.90g / cm 3 LLDPE with a density of 0.92g / cm 3 LDPE, and adjusted to an average density of 0.904g / cm 3 , The ...

Embodiment A2

[0113] In addition to the resin used as a sealing layer at a density of 0.90g / cm 3 A packaging material was produced in the same configuration as in Example 1, except for the resin obtained by adding 400 ppm of erucamide to LLDPE.

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Abstract

Provided is packaging, wherein: the packaging is provided with a substrate layer that includes at least one biaxially extended resin film and a sealant layer provided with at least a first thermoplastic resin layer and a second thermoplastic resin layer. The substrate layer, the first thermoplastic resin layer, and the second thermoplastic resin are layered in that order; the density of a first resin from which the first thermoplastic resin layer is formed is greater than the density of a second resin from which the second thermoplastic resin layer is formed; the density of the first resin isat least 0.90 g / cm<3>; the density of the second resin is 0.92 g / cm<3> or less; and the second thermoplastic resin layer contains 200-2000 ppm of a lubricant that contains at least a fatty acid amide-based lubricant or a fatty acid ester-based lubricant.

Description

technical field [0001] The present invention relates to packaging materials for containing food, cosmetics, medicines, etc., and packaging materials used in liquid-filled packaging bags. , Non-food liquids such as shampoo and cooling agent can be filled into small packaging bags at high speed, and can be filled at high speed in a high-temperature state such as heat sterilization, and can be efficiently manufactured with stable quality Packaging materials, Barrier packaging materials and packaging bags using this material. [0002] This application claims priority based on Japanese Patent Application No. 2016-233955 filed in Japan on December 1, 2016 and Japanese Patent Application No. 2017-204338 filed in Japan on October 23, 2017, the contents of which are cited here . Background technique [0003] As the thermoplastic resin layer of the packaging material for liquid high-speed filling, low-density low-temperature heat-sealable resin is generally used, and in particular, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B32B27/00B32B27/18B32B27/32
CPCB32B27/18B32B27/32B32B2307/7246B32B15/082B32B2307/31B32B27/36B32B2439/70B32B2255/20B32B2307/7244B32B15/085B32B2307/3065B32B27/08B32B2439/80B32B2250/24B32B7/027B32B27/306B32B7/02B32B2255/28B32B2307/7242B32B27/302B32B2307/72B32B2439/46B32B2250/03B32B15/09B32B7/12B32B15/088B32B2307/748B32B27/304B32B2255/26B32B2307/518B32B15/20B32B27/34B32B27/281B32B2307/5825B32B2255/10B32B27/20B32B2307/412B65D65/40B32B27/00
Inventor 工藤茂树今井伸彦川崎实竹本理
Owner TOPPAN INC
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