Packaging bag for transportation

Abstract

A packaging bag for transportation, provided with an openable and closable sealing section (3) for sealing an opening (2). An absorbing material (6) which is a cloth-like material formed by providing synthetic fibers, which have been stretched into a fibrous form, with hydrophilic characteristics is sandwiched between two sheets of packaging materials (4, 5) consisting of a thermoplastic synthetic resin film, and edges (7) sandwiching the absorbing material (6) are fusion bonded together at portions excluding the opening (3). In this way, a bag body (1) is formed.

Description

technical field [0001] The present invention relates to a packaging bag for transportation, which is used for transportation of articles such as containers filled with liquid and food containing exuded liquid. Background technique [0002] When transporting a container containing a liquid, the liquid may overflow due to breakage of the container or loosening of the cap, and this may contaminate other transported objects. In the past, in order to prevent such problems, in order to absorb the spilled liquid, cover the container with an absorbent material and put it in a bag, and then put it in another bag to double-pack, or put it in place of the bag to prevent damage. in a firm container. It is desired to achieve simplification by reducing the operation steps and costs of such a system. [0003] As a technique proposed in response to such a demand, an envelope composed of a packaging bag composed of a surface on at least one side of a sheet-like base material and a liquid a...

AI Technical Summary

Problems solved by technology

However, a fibrous structure made of a thermoplastic resin can hardly absorb liquid, and is not suitable as an absorbent material.

[0011] In addition, it is conceivable to mix thermoplastic resin powder in the slurry to form a fibrous structure and use it as an absorbent material, but if there is little mixing of thermoplastic resin powder, when thermally welding a packaging material composed of a synthetic resin film, The gaps between the fibers of the fibrous structure of the absorbent material are not completely filled by the molten thermoplastic resin, causing capillary phenomenon at the welded part and the liquid in the bag seeps out. In addition, if the thermoplastic resin powder is mixed too much , the gap between the fibers of the fibrous structure of the absorbent material is completely filled by the melted thermoplastic resin, capillary phenomenon will not be caused at the welded part, and the liquid in the bag will not seep out to the outside, but there will be thermoplastic resin powder. The gap between the fibers of the fibrous structure of the absorbent material is filled, and the gap between the fibers of the fibrous structure becomes smaller, thereby reducing the amount of liquid absorbed.

[0012] As a method to solve such a problem, it is conceivable to make the size of the built-in absorbent material slightly smaller than the size of the packaging material made of synthetic resin film, and not to provide the packaging bag with the absorbent material on the outermost part of the thermally welded part, but such When packaging bags, many steps are required to position the absorbing material, which is not conducive to mass production, and there is a problem of high cost

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