CN214297509U

CN214297509U - Powder leakage prevention flexible container

Info

Publication number: CN214297509U
Application number: CN202022444232.XU
Authority: CN
Inventors: 张宝崇
Original assignee: HONG BAU ENTERPRISE CO Ltd
Current assignee: HONG BAU ENTERPRISE CO Ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-09-28
Anticipated expiration: 2030-10-29

Abstract

A powder leakage prevention flexible freight bag is characterized in that an outer leakage prevention coating film and an inner leakage prevention coating film are arranged on the outer surface and the inner surface of a flexible freight bag body through a double-sided film coating process; the bulk bag body is PE (polyethylene) or PP (polypropylene) woven cloth, and the leakage-proof film is preferably a PE film, a PP film or a PE/PP composite film. The ratio of the thickness of the woven cloth to the thickness of the coating film is 4: 1-1: 1. Through inside and outside leak protection tectorial membrane, keep the structure frivolity of flexible container body and strengthen its toughness and improve anti tear ability to this leak protection tectorial membrane reaches leak protection powder, waterproof, dampproofing, dirt-proof purpose, protects the built-in powder.

Description

Powder leakage prevention flexible container

Technical Field

The utility model relates to a flexible container technical field specifically is a leak protection powder flexible container.

Background

The flexible container is widely used for packing or non-packing powdery, granular and blocky materials and the like, and is integrated into an enlarged packing unit which is convenient for loading, unloading, carrying and transporting.

The leakage phenomenon often can appear when the flexible freight bag is used for the splendid attire likepowder or tiny particulate matter, and the reason is that the flexible freight bag body comprises PE woven cloth and nylon composite film layer, and PE woven cloth is woven the silk by PE and is woven according to warp-weft ratio 1 (1 ~ 2) and form, and nylon composite film layer combines in the surface that PE woven cloth. The inevitable gaps exist between the warp and weft knitting yarns of the PE knitting cloth, and the factors such as the weight of the contents, hanging, carrying, traction, pulling and the like can expand the gaps of the warp and weft knitting yarns locally, and the nylon composite film layer can be locally thinned or broken in some areas due to the external force factors, so that the contents of powder particles or fine particles are leaked.

In order to solve the above problems, the prior art has to provide a plastic inner bag inside the flexible freight bag, and the inner bag solves the problem of leakage prevention, so the problem of how to closely connect the inner bag and the flexible freight bag must be solved, otherwise the inner bag is very easy to slide into the flexible freight bag and cannot be sufficiently opened, which causes the trouble of filling materials.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a powder leakage prevention flexible freight bag, which is provided with an outer leakage prevention film and an inner leakage prevention film on the outer surface and the inner surface of a flexible freight bag body through a double-sided film coating process; the bulk bag body is PE (polyethylene) or PP (polypropylene) woven cloth, and the leakage-proof film is preferably a PE film, a PP film or a PE/PP composite film. The ratio of the thickness of the woven cloth to the thickness of the coating film is 4: 1-1: 1.

The utility model has the advantages that: through inside and outside leak protection tectorial membrane, keep the structure frivolity of flexible container body and strengthen its toughness and improve anti tear ability to this leak protection tectorial membrane reaches leak protection powder, waterproof, dampproofing, dirt-proof purpose, protects the built-in powder.

The flexible freight bag with the inner and outer leakproof covering films can be formed by splicing through a heat seal sealing process or by a sewing process.

Drawings

Fig. 1 is an appearance schematic diagram of the flexible freight bag of the present invention.

Fig. 2 is an enlarged schematic view of the partial structure of the flexible freight bag of the present invention.

Fig. 3 is a schematic partial cross-sectional view of the flexible freight bag of the present invention.

Fig. 4 is a schematic view of the powder inside the flexible container of the present invention.

Detailed Description

For the convenience of explanation, the present invention is described with reference to the following embodiments. Various objects in the embodiments are depicted in terms of suitable illustrative proportions, dimensions, deformations, or displacements, rather than in terms of actual components, as previously described.

As shown in figure 1, the utility model discloses flexible freight bag includes body 10, is equipped with a feed inlet 11 in the middle of the body 10 upper portion, and visual bearing and the required setting of unloading or not setting up the discharge opening in the middle of the body lower part, in the legend, do not set up the discharge opening, and flexible freight bag still is equipped with several suspender 12. The bulk bag illustrated in the drawings is intended to describe the basic aspects of the invention and is not intended to limit the invention.

As shown in fig. 2 and 3, the main body 10 is a woven fabric formed by weaving PE (polyethylene) or PP (polypropylene) yarns in warp and weft, and an outer leakage preventing coating 21 and an inner leakage preventing coating 22 are formed on the outer surface and the inner surface of the main body 10 by a double-sided coating process; the leakage-proof coating film is preferably a PE (polyethylene) film, a PP (polypropylene) film, or a PE/PP (polyethylene/polypropylene) composite film. The ratio of the thickness of the woven cloth to the thickness of the coating film of the body 10 is 4: 1-1: 1.

As shown in fig. 4, the utility model discloses the inside splendid attire powder 30 of flexible container body 10 schematic diagram reaches the mesh of leak protection powder through the totally enclosed clearance that can't avoid between the warp and weft knitting silk of this woven cloth of this outer leak protection tectorial membrane 21 and interior leak protection tectorial membrane 22. In addition, the outer leakage-proof coating film 21 and the inner leakage-proof coating film 22 further achieve the purposes of water resistance, moisture resistance and dust resistance, and protect the powder inside. Furthermore, the outer and inner leakage-

proof films

21 and 22 can keep the structure of the container bag body 10 light and thin, enhance the toughness and improve the tear resistance, so that the container bag can bear the weight of the contents and the external forces of hanging, carrying, pulling and the like, thereby reducing the probability of breakage.

The above description is the preferred embodiment of the present invention and the technical principle applied by the same, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a leak protection powder flexible container which characterized in that:

the outer surface and the inner surface of the body of the flexible freight bag are respectively provided with an outer leakage-proof covering film and an inner leakage-proof covering film.

2. The leakage-proof flexible freight bag as defined in claim 1, wherein the ratio of the thickness of the body to the thickness of the film is 4:1 to 1: 1.