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packaging bag

A packaging bag and main body technology, applied in packaging, wrapping paper, packaged food, etc., can solve the problem of low water vapor transmission rate of resin film, and achieve the effect of low water vapor transmission rate and excellent non-adsorption

Active Publication Date: 2019-12-17
FUJIMORI KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to suppress the deterioration of the active ingredients of medicines, cosmetics and foods, etc., the water vapor transmission rate of resin films used as packaging materials for these contents is required to be low

Method used

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no. 2 approach 》

[0132]

[0133] Refer to the following Figure 4 A packaging bag according to a second embodiment of the present invention will be described. Figure 4 It is a cross-sectional view of the packaging bag of the second embodiment, which is equivalent to figure 2 diagram. In this embodiment, the same configurations as those in the first embodiment are assigned the same reference numerals, and detailed description thereof will be omitted.

[0134] Such as Figure 4 As shown, the packaging bag 32 of the second embodiment has a bag body 117 and a spout 20 joined to the bag body 117 . The bag main body 117 is molded into a bag shape by using the laminated body 110 as a molding material and bonding two laminated bodies 110 together.

[0135] The laminated body 110 of 2nd Embodiment has the surface resin layer 111, the 2nd intermediate layer 112, the base material layer 11, the 1st intermediate layer 12, and the sealing layer 13 in this order.

[0136] Figure 4 The shown bag m...

Embodiment 1～13、 comparative example 1

[0148] A laminate having a three-layer structure comprising a substrate layer, an intermediate layer, and a sealant layer in this order was produced. The resins used as raw materials for each layer shown in Table 1 are heated and melted separately, and the resulting components are formed into a multilayer film using an extruder capable of multilayer coextrusion molding to obtain a laminated layer with a three-layer structure. body.

[0149] In addition, a laminate having a five-layer structure comprising a surface resin layer, a second intermediate layer, a base material layer, a first intermediate layer, and a sealant layer in this order was produced. Using the resins shown in Table 2 as raw materials for each layer, film formation was performed in the same manner as for the laminate of the three-layer structure to obtain a laminate of the five-layer structure. In addition, in Table 1 and Table 2, the numerical value in [ ] is the thickness of each layer.

[0150] In additi...

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Abstract

The present invention provides a packaging bag with a low water vapor transmission rate and excellent non-adsorption properties. More specifically, the present invention relates to a packaging bag having a bag body and a spout joined to the bag body. material, and with the sealing layer as the inner side, the opposite sealing layers are bonded to each other to form a bag shape, and the spout is clamped and bonded between the opposite sealing layers. The first intermediate layer contains polyethylene resin, modified Polyethylene-based resin, the base layer includes a layer made of fluorine-based resin as a molding material.

Description

technical field [0001] This application claims the benefit of priority based on Japanese Patent Application No. 2017-091287 filed in Japan on May 1, 2017, and the entirety thereof is incorporated in this specification by reference. [0002] The invention relates to a packaging bag. Background technique [0003] In order to suppress deterioration of active ingredients of medicines, cosmetics, foods, etc., a resin film used as a packaging material for these contents is required to have a low water vapor transmission rate. In particular, packaging bags using sealant resins such as polyolefins are used as packaging materials for products applied to living bodies such as medicines (for example, Patent Document 1). Packaging bags using a sealant resin such as polyolefin can keep the water vapor transmission rate low due to the hydrophobicity of polyolefin. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2000-084...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D33/38B65D30/02B65D65/40B65D81/24
CPCB32B27/08B32B27/32B32B3/08B32B27/302B32B27/325B32B27/322B32B27/38B32B2250/05B32B2250/03B32B2250/24B32B2270/00B32B2274/00B32B2307/7246B32B2307/732B32B2307/31B32B2307/404B32B2307/714B32B2439/46B32B2439/80B32B2439/70B65D75/5883B32B7/12B65D65/40B65D81/24B32B27/36
Inventor 冈本大美尾笃野村纯平铃木丰明
Owner FUJIMORI KOGYO CO LTD