CN215400342U

CN215400342U - Flexible bag body and flexible vacuum compression bag

Info

Publication number: CN215400342U
Application number: CN202121626482.3U
Authority: CN
Inventors: 阮斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2022-01-04
Anticipated expiration: 2031-07-16

Abstract

The utility model belongs to the technical field of household articles, and particularly relates to a flexible bag body and a flexible vacuum compression bag. The flexible vacuum compression bag comprises a bag body, wherein the bag body is provided with an opening, a buckling device arranged at the opening and an air valve; at least one bag piece is a flexible bag piece, the flexible bag piece comprises a first membrane piece and a second membrane piece, a first membrane area and a second membrane area are correspondingly arranged on the first membrane piece and the second membrane piece, the first membrane piece and the second membrane piece are mutually compounded at the first membrane area, and the first membrane piece and the second membrane piece are mutually separated at the second membrane area. The flexible vacuum compression bag disclosed by the utility model is formed by adopting the flexible bag sheets, so that the common performance requirements of the conventional vacuum compression bag are met, and the potential safety hazards of failure of a compression function, shortened service life of the bag body or scratching and the like caused by recessive air leakage of the sealing bag, stretching deformation damage of a thin film, stretching damage of a composite film at a folding sharp corner and the like caused by contraction and bending of the bag body during air exhaust and storage can be avoided.

Description

Flexible bag body and flexible vacuum compression bag

Technical Field

The utility model belongs to the technical field of household articles, and particularly relates to a flexible vacuum compression bag for vacuuming and containing clothes, bedding and the like and a flexible bag body for containing general articles.

Background

The bag is commonly used in daily life, and can play a role in packaging, containing and the like. The bags have different names and uses according to different use scenes. For example, the vacuum storage bag is a common tool for storing textiles such as clothes and bedding, and the clothes or bedding with a large volume are placed in the vacuum compression bag, after the self-sealing zipper at the opening is closed, the air in the bag body is pumped out by adopting a dust collector or an air pumping tube, or the air in the bag body can be discharged by extruding the vacuum compression bag without pumping out through external force after the vacuum compression bag is closed, so that the purposes of storing and reducing the volume of the clothes and bedding are achieved.

In prior art, what the bag body need be accomodate is the fabrics such as great clothing, bed clothes, and the bag body often adopts composite film as the bag piece and fuses through the hot pressing and form, for the leakproofness after guaranteeing the overall structure intensity of the bag body and evacuation, the bag piece of the bag body generally adopts multilayer combined type diaphragm to make compression bag ability bearing and keep sealed through different materials.

But also can bring certain weak point like this, because the bilayer film of the constitution bag body is thicker, become as an organic whole back film behind the adhesive complex very hard, the internal layer film of closed angle department is extruded when the packing is folding and is damaged, outer film is by tensile deformation, this closed angle is in easy chronic gas leakage under the vacuum state, thereby lead to vacuum compression bag being adorned the clothing and quilt, gas leakage slowly after the evacuation, influence the service function and the consumption experience of compression bag, increase customer and change the compression bag, accomodate the trouble of bleeding again.

Therefore, there is a need to develop a new ultra-soft vacuum compression bag, which not only ensures the general advantages of the existing vacuum compression bag, but also avoids the damage of the film when the package is folded, and the influence of the service life or the potential safety hazard caused by the sharp edge or corner formed by the shrinkage of the bag body film when the vacuum is pumped.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, and can avoid the damage of a film with sharp corners formed by folding a bag sheet when meeting the requirement of general performance of a vacuum compression bag, thereby fundamentally avoiding potential safety hazards and prolonging the service life, and providing a brand-new flexible vacuum compression bag.

In addition, the vacuum compression bag can form a conventional bag body for accommodating articles after the air valve is removed, so that the novel flexible bag body is also provided.

In order to achieve the purpose, the utility model adopts the scheme that:

a flexible vacuum compression bag comprises a bag body formed by a plurality of bag sheets, wherein the bag body is provided with an opening, a buckling device is arranged at the opening, and an air valve for exhausting is further arranged on the bag body. At least one bag sheet is a flexible bag sheet, and the flexible bag sheet is provided with at least two layers of membrane sheets, namely a first membrane sheet and a second membrane sheet; when the two membranes are mutually compounded to form the flexible bag sheet, a first membrane area and a second membrane area are correspondingly arranged on the first membrane and the second membrane, the first membrane and the second membrane are mutually compounded to form a whole at the first membrane area, and the first membrane and the second membrane are mutually separated at the second membrane area. And, the second membrane region is not formed as a full or near full bubble-like structure.

This vacuum compression bag, through the bag piece that forms by two complete compound diaphragms of modes such as adopting the bonding in traditional compression bag, the replacement is the flexible bag piece of department's part complex at first membrane, make this flexible bag piece be unanimous basically such as the structural performance with traditional bag piece, but its resistant folding does not harm the performance but has obvious promotion, can not leak gas after this vacuum compression bag bleeds air, and when not using to accomodate, the bag piece can not form hard and sharp-pointed limit or angle, thereby can effectively avoid the above-mentioned life that folding caused to shorten with the fish tail user and the potential safety hazard that leads to.

According to the flexible vacuum compression bag, the first film sheet and the second film sheet are formed into a whole by thermal fusion at the first film area, so that the first film sheet and the second film sheet are compounded into a whole, namely the first film sheet has the same structure as the traditional compound film sheet, but the first film sheet and the second film sheet are not bonded at the second film area, and the two layers of films can move freely when being folded.

According to the above-mentioned flexible vacuum compression bag, the first membrane sheet and the second membrane sheet are adhered together by coating an adhesive therebetween at the first membrane area, so that the first membrane sheet and the second membrane sheet are combined with each other to form a whole, that is, the first membrane sheet has the same structure as that of a conventional composite membrane sheet, but the first membrane sheet and the second membrane sheet are not adhered at the second membrane area, and the two layers of films can move freely when folded.

According to the flexible vacuum compression bag, the first membrane sheet and the second membrane sheet are thermally fused into a whole by arranging the intermediate layer for thermal fusion between the two membrane sheets at the first membrane area, so that the first membrane sheet and the second membrane sheet are mutually compounded into a whole, namely the first membrane sheet has the same structure as the traditional composite membrane sheet, but the first membrane sheet and the second membrane sheet are not bonded at the second membrane area, and the two membrane sheets can freely move during folding.

A flexible vacuum compression bag according to any one of the preceding claims, said second membrane region having a shape of a circle, ellipse, triangle, quadrilateral, hexagon or other polygonal shape.

A flexible vacuum compression bag according to any one of the preceding claims, wherein the shape or size of the second film regions are the same or different.

A flexible vacuum compression bag according to any one of the preceding claims, wherein a cavity is formed between the first and second membrane sheets at the second membrane region.

According to any one of the above flexible vacuum compression bags, the cavity is filled with gas, but is not formed into a full or nearly full bubble-like structure.

A flexible vacuum compression bag according to any one of the preceding claims, each second film region being formed in a closed or an open shape.

According to any one of the above flexible vacuum compression bags, the second membrane regions are formed into a closed shape, each second membrane region is completely separated to form a plurality of mutually independent cavities, and the cavities are filled with gas but are not formed into full bubble-shaped structures.

According to any one of the flexible vacuum compression bags, after the cavity is filled with the gas, the gap between the first membrane and the second membrane is 0.01-1mm, so that the cavity is not formed into a full bubble-shaped structure. Since the bubble-like structure increases the packing volume, significantly weakens the structural strength of the bag sheet, and also has adverse effects when the bag body is folded, the bubble structure may also increase the thickness of the vacuum storage bag meaninglessly, which is not suitable for the vacuum storage bag of the present invention.

According to any one of the flexible vacuum compression bags, the flexible bag sheet is further provided with a fusion area formed by hot-pressing fusion of the first membrane sheet and the second membrane sheet, and the fusion area is arranged adjacent to the bottom edge, the side edge or the opening of the bag body so as to form a structure consistent with that of a traditional bag sheet in a local area without affecting the overall bending performance.

A flexible bag body comprises a bag body formed by a plurality of bag sheets, and the bag body is provided with an opening. The flexible bag sheet comprises at least two layers of film sheets, and comprises a first film sheet and a second film sheet, wherein the first film sheet and the second film sheet are correspondingly provided with a first film area and a second film area, the first film sheet and the second film sheet are mutually compounded to form a whole at the first film area, and the first film sheet and the second film sheet are mutually separated at the second film area. And, the second membrane region is not formed as a full or near full bubble-like structure.

According to the above flexible bag, the first film and the second film are integrated by thermal fusion at the first film region, so that the first film and the second film are combined with each other to form an integrated body, that is, the first film has the same structure as a conventional composite film, but the first film and the second film are not bonded at the second film region, and the two films can move freely when being folded.

According to the flexible bag body, the first membrane and the second membrane are adhered into a whole by coating the adhesive between the first membrane and the second membrane at the first membrane area, so that the first membrane and the second membrane are compounded into a whole, namely the first membrane has the same structure as the traditional compound membrane at the first membrane area, but the first membrane and the second membrane are not adhered at the second membrane area, and the two layers of films can move freely when being folded.

According to the flexible bag body, the first film and the second film are thermally fused into a whole by arranging the intermediate layer for thermal fusion between the two films at the first film area, so that the first film and the second film are mutually compounded into a whole, namely the first film has the same structure as the traditional compound film, but the first film and the second film are not bonded at the second film area, and the two films can freely move during folding.

The flexible pouch according to any of the preceding claims, wherein said second film region has the shape of a circle, ellipse, triangle, quadrilateral, hexagon or other polygonal shape.

The flexible pouch according to any of the above, wherein the shape or size of each second film region may be the same or different.

According to any one of the flexible bag bodies, at the second film area, a cavity is formed between the first film and the second film, and the cavity is filled with gas but is not formed into a full bubble-shaped structure. After the cavity is filled with the gas, the gap between the first membrane and the second membrane is 0.01-1mm, so that the cavity is not formed into a full bubble-shaped structure.

According to any one of the above flexible bag bodies, the first film regions are formed into a closed shape, the second film regions are completely separated to form a plurality of mutually independent cavities, and the cavities are filled with gas but are not formed into full bubble-shaped structures.

According to any one of the above flexible bag bodies, a fusion area formed by hot-pressing and fusing the first membrane and the second membrane is further arranged on the flexible bag sheet, and the fusion area is arranged adjacent to the bottom edge, the side edge or the opening of the bag body.

According to any one of the flexible bag bodies, the opening is also provided with a buckling device which is a self-sealing zipper.

According to the vacuum compression bag, the bag sheet forming the bag body is provided with the flexible bag sheet formed by the first film area formed by mutually compounding the two films and the second film area which is formed by mutually separating the two films and forming a gap, so that the vacuum compression bag can meet the common performance requirements of the conventional vacuum compression bag, and can avoid potential safety hazards such as film tensile deformation damage, folding sharp corner composite film tensile damage, compression function failure caused by recessive air leakage of the sealing bag, bag body service life shortening or scratching and the like due to contraction and bending of the bag body during air exhaust and storage.

At the same time, the utility model also provides a general flexible bag body with the same advantages.

Drawings

FIG. 1 is a schematic perspective view of a flexible vacuum compression bag according to an embodiment of the present invention, which is a schematic structural view in an opened state of the bag body; wherein the second membrane region 32 is hexagonal in shape;

FIG. 2 is an enlarged partial schematic view of the embodiment of FIG. 1;

fig. 3a is a schematic cross-sectional structural view of the bag web 2 of the embodiment of fig. 1, wherein the first film web 21 and the second film web 22 are composited with each other at the first film region 31 to form an integral structure; fig. 3b is a schematic cross-sectional view of a pouch sheet 2 of other embodiments, which is an embodiment using an intermediate layer 23 for thermal fusion to combine the first film sheet 21 with the second film sheet 22;

FIG. 4 is a front view of the embodiment of FIG. 1;

FIG. 5 is a schematic perspective view of a flexible vacuum compression bag according to another embodiment of the present invention, which is a schematic structural view in an opened state of the bag body; wherein the second membrane region 32 is oval in shape;

FIG. 6 is a front view of the embodiment of FIG. 5;

FIG. 7 is an enlarged partial schematic view of FIG. 6;

FIG. 8 is a schematic perspective view of a flexible vacuum compression bag according to another embodiment of the present invention, which is a schematic structural view in a closed state of the bag body; wherein the second membrane region 32 is circular in shape;

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a view of another embodiment of the present invention showing a flexible vacuum compression bag having unclosed second membrane regions 32, wherein the second membrane regions 32 are connected but the first membrane region 31 is connected such that the second membrane regions 32 do not change significantly;

fig. 11 is a schematic perspective view of a flexible pouch according to an embodiment of the present invention.

Wherein the reference numbers correspond to the following: the bag comprises a bag body 1, a bag sheet 2, an opening 3, a fastening device 30, an air valve 4, a flexible bag sheet 20, a first membrane 21, a second membrane 22, a middle layer 23, a cavity 24, a fusion area 25, a first membrane area 31 and a second membrane area 32.

Detailed Description

In order that those skilled in the art will better understand the utility model and thus more clearly define the scope of the utility model as claimed, it is described in detail below with respect to certain specific embodiments thereof. It should be noted that the following are only some specific embodiments of the inventive concept, and are only a part of the examples of the present invention, wherein the specific direct description of the related structures is only for the convenience of understanding the present invention, and the specific features do not certainly and directly limit the scope of the present invention. Such alterations and modifications as are made obvious by those skilled in the art and guided by the teachings herein are intended to be within the scope of the utility model as claimed.

A flexible vacuum compression bag (also called flexible vacuum compression bag) comprises a bag body 1, wherein the bag body 1 is formed by at least one bag sheet 2, and the bag body 1 formed by the bag sheets 2 is generally formed by welding and connecting corresponding edges needing to be welded together in a hot-pressing fusion mode.

For example, in some embodiments, the flexible vacuum compression bag can be folded by folding a bag sheet 2 in half, and then closing the sides by heat-fusing or gluing the two sides of the bag sheet 2 to form the bag body 1, wherein the two opposite sides of the bag body 1 which are not closed are formed as the opening 3 of the bag body 1. In more cases, the bag body 1 is composed of two bag pieces 2, for example, two bag pieces 2 having a rectangular shape, and the bottom edge and both side edges thereof are respectively heat-fused to each other (or other known bag body joining techniques), thereby forming the bag body 1 having an unsealed opening 3. Of course, besides the above-mentioned formation of the bag body 1 by one or two bag sheets 2, it is also feasible to form the bag body 1 by mutually heat-fusing a greater number of bag sheets 2; for example, a third sheet 2 is added to two sheets 2 as a bottom surface, or a bottom surface and two side surfaces are provided, respectively, or a top surface is further provided, and so on. These bag structures are mature bag structures in the prior art, and are not described herein again, and refer to patents CN109502157A, CN2863695Y, CN201761728U, CN204096326U, CN204323916U, CN204161844U, etc.

The bag body 1 is also provided with an opening 3 for placing objects in the bag body 1, and a buckling device 30 is arranged at the opening 3 so as to close the opening 3 when needed. The fastening device 30 can be realized by a self-sealing strip (also called a zipper), that is, two mutually matched convex strips and grooves are matched to realize the purpose of closing the opening 3; alternatively, other fastening devices capable of closing the opening 3 are known in the art, and are not described herein, and refer to patents CN1474771A, CN1819953A, CN102849314A, CN202321066U, etc.

The bag body 1 further comprises an air valve 4 for exhausting air in the bag body 1 and preventing outside air from entering the bag body 1. The air valve 4 is also called a one-way valve, an exhaust valve, etc. and is a commonly used component in a vacuum compression bag, and is not described herein again, and refer to patents CN201757198U, CN203009933U, CN202867873U, CN213176923U, etc.

In a conventional vacuum compression bag, the bag sheet 2 constituting the bag body 1 may be formed by compounding a plurality of layered materials, for example, including a nylon layer, a PE layer, etc., such a composite layered structure can significantly improve the structural strength of the film sheet, and improve the load-bearing capacity of the bag body, but this also can bring adverse effects such as easy damage to folding.

Specifically, the thickness of the vacuum storage bag is increased due to the composite material or the multiple layers of the film, so that the vacuum storage bag is hard in the bag body and is easy to form a linear structure when in use, or the vacuum storage bag is folded and stored to form an angular structure, which may cause damage to the film of the bag body at the position due to folding, and may also cause injury to a user due to sharp angles.

To this end, the utility model provides for the vacuum compression bag to be provided with at least one bag web 2 formed by a flexible bag web 20, said flexible bag web 20 having at least two film webs, a first film web 21 and a second film web 22; when the two film sheets are combined with each other to form the flexible bag sheet 20, the first film sheet 21 and the second film sheet 22 are correspondingly provided with a first film region 31 and a second film region 32.

The first film sheet 21 and the second film sheet 22 are combined with each other at the first film region 31, and they may be combined with each other by thermal fusion (as shown in fig. 3 a), or by applying an adhesive at the first film region 31 between them, so that they are adhered together to form the first film region 31 having a specific pattern, or between them to form the whole body (as shown in fig. 3 b), or by being adhered to a nylon film at a high temperature of about 200 ° when the bubble film is poured out with reference to the bubble film manufacturing process, so as to form unbonded small bubbles as the second film region 32. Of course, other known techniques or structures for combining two membranes into a unitary structure may be used, without limitation, as is known in the art.

For example, when the first film 21 and the second film 22 are formed integrally by thermal fusion, the two films may be thermally fused using a relief hot-press mold having a shape corresponding to the first film region 31 so that the two films are thermally fused only at a male mold to form the first film region 31; wherein, the hot pressing can adopt rolling or flat pressing. When the first film 21 and the second film 22 are adhered together at the first film 31 by applying an adhesive therebetween to form a specific pattern, the adhesive is applied to one of the films by using a gravure roll, the films are overlapped and then pressed to adhere the films to each other to form the first film 31, and the two films without the adhesive are separated to form the second film 32. When the first membrane 21 and the second membrane 22 are formed into a whole by arranging the intermediate layer 23 which is beneficial to thermal fusion between the two membranes, the intermediate layer 23 with the shape corresponding to the first membrane 31 is manufactured by processing or special forming process, and the like, then is placed between the two membranes, and finally is subjected to rolling roller or flat plate hot pressing, so that the intermediate layer 23 is fused with the first membrane 21 and the second membrane 22 respectively to form the first membrane 31, and the two membranes which are not provided with the intermediate layer 23 are separated from each other to form the second membrane 32.

At the second membrane region 32, the first membrane sheet 21 and the second membrane sheet 22 are separated from each other, i.e. they are separate laminated sheets, which are not composited with each other to form a thicker overall sheet, but still maintain separate laminated structures.

In a preferred embodiment, the shape of the second film regions 32 may be circular, oval, triangular, quadrilateral, hexagonal or other polygonal shapes, and the shape and size of each second film region 32 may be the same or different, and may be specifically set according to the requirement, which is not limited and does not fundamentally affect the actual effect of the flexible compression bag. For example, the second membrane region 32 of the flexible compression bag shown in fig. 1 is hexagonal in shape, oval in shape in fig. 5, and circular in shape in fig. 8.

In other preferred embodiments, a gas, such as air, nitrogen, or the like, is filled between the first diaphragm 21 and the second diaphragm 22 at the second membrane region 32, so that a cavity 24 is formed between the first diaphragm 21 and the second diaphragm 22 at the second membrane region 32. However, the amount of gas filled in the cavity 24 needs to be controlled, and generally should not be such that the surface is full or nearly full bubble-like, but rather a small amount of gas is required to separate the two membranes.

For example, after the cavity is filled with gas, the gap between the first membrane and the second membrane is 0.01-1mm, so that the cavity is not formed into a full bubble-like structure. Since the bubble-like structure significantly weakens the structural strength of the bag sheet and has a large volume when the bag body package is folded, the bubble structure may also undesirably increase the thickness of the vacuum storage bag, which is not suitable for the vacuum storage bag of the present invention.

In other preferred embodiments, the second membrane regions 32 may be formed in a closed or an open shape, which is preferably formed in a closed shape to ensure that each second membrane region 32 is completely isolated, forming a plurality of cavities 24 independent of each other. In the flexible compression bags of fig. 1, 5 and 8, each second membrane region 32 is completely separated by a partition, while in other embodiments the second membrane regions 32 may not be completely separated by a partition.

In other preferred embodiments, the flexible sheet 20 is further provided with a fused region 25, and the second film sheet 22 is not provided in the fused region 25, i.e., the first and second film sheets in this region are completely fused to each other by heat and pressure. The fused region 25 is preferably provided at an edge position of the bag body 1, such as near the bottom edge, near the side edge, or near the opening.

To facilitate the use of the snap-fit device 30, a score-line is also provided at the opening 3 of the flexible compression bag to seal the opening by snapping the two parts of the snap-fit device 30 together by sliding the score-line along the opening 3. And, near the both ends of opening 3 still are equipped with the stopper to spacing the scribing, avoid it to follow opening part roll-off.

As shown in fig. 11, a flexible bag (also called as a soft bag), otherwise referring to fig. 1-10 (only lacking the air valve 4, the other structures are the same), includes a bag body 1 formed by a plurality of bag sheets 2, the bag body 1 having an opening 3; the opening 3 is also provided with a buckling device 30, and the buckling device 30 is a self-sealing zipper. At least one bag piece 2 is a flexible bag piece 20, the flexible bag piece 20 has at least two layers of membrane pieces, including a first membrane piece 21 and a second membrane piece 22, the first membrane piece 21 and the second membrane piece 22 are correspondingly provided with a first membrane area 31 and a second membrane area 32, the first membrane piece 21 and the second membrane piece 22 are mutually compounded at the first membrane area 31, and the first membrane piece 21 and the second membrane piece 22 are mutually separated at the second membrane area 32.

At the first film region 31, the first film sheet 21 and the second film sheet 22 are integrated by thermal fusion, an adhesive is applied therebetween to be adhered as one body, or an intermediate layer 23 for thermal fusion is provided between the two film sheets to thermally fuse the two film sheets as one body. The second membrane regions 32 may be circular, oval, triangular, quadrilateral or hexagonal in shape, and the shape or size of the second membrane regions 32 may also be the same or different.

At the second membrane area 32, a cavity 24 is formed between the first membrane 21 and the second membrane 22, and the cavity 24 is filled with gas but is not formed into a full bubble-like structure.

The first membrane area 31 is formed into a closed shape, and each second membrane area 32 is completely separated to form a plurality of mutually independent cavities 24, wherein the cavities 24 are filled with gas but are not formed into full bubble-shaped structures. Of course, the shape may be not closed (see fig. 10).

The flexible bag sheet 20 is further provided with a fusion area 25 formed by fusing the first film sheet 21 and the second film sheet 22 by heat pressing, and the fusion area 25 is arranged adjacent to the bottom edge, side edge or opening of the bag body 1.

In the flexible bag body, the manufacturing method is basically the same as that of the flexible vacuum compression bag, and the details are not repeated.

Claims

1. A flexible vacuum compression bag comprises a bag body (1) formed by a plurality of bag sheets (2), wherein the bag body (1) is provided with an opening (3), a buckling device (30) is arranged at the opening (3), and an air valve (4) for exhausting air is also arranged on the bag body (1); the bag is characterized in that at least one bag sheet (2) is a flexible bag sheet (20), the flexible bag sheet (20) is provided with at least two layers of film sheets and comprises a first film sheet (21) and a second film sheet (22), the first film sheet (21) and the second film sheet (22) are correspondingly provided with a first film area (31) and a second film area (32), the first film sheet (21) and the second film sheet (22) are mutually compounded at the first film area (31), the first film sheet (21) and the second film sheet (22) are mutually separated at the second film area (32), and the second film area (32) is not formed into a full bubble-shaped structure.

2. A flexible vacuum compression bag according to claim 1 wherein the first film sheet (21) is formed integrally with the second film sheet (22) at the first film section (31) by heat-fusing, an adhesive is applied therebetween to bond them together, or an intermediate layer (23) for heat-fusing is provided between the two film sheets to heat-fuse them together at the first film section (31).

3. Flexible vacuum compression bag according to claim 2, wherein the shape of the second film regions (32) is circular, oval, triangular, quadrangular or hexagonal, the shape or size of each second film region (32) being the same or different.

4. Flexible vacuum compression bag according to claim 2 or 3, characterized in that a cavity (24) is formed between the first (21) and second (22) membrane sheets at the second membrane region (32).

5. Flexible vacuum compression bag according to claim 4, wherein the cavity (24) is filled with gas but is not formed as a full bubble-like structure, the gap between the first membrane (21) and the second membrane (22) being 0.01-1 mm.

6. Flexible vacuum compression bag according to claim 2 or 3, characterized in that each second film zone (32) is formed in a closed or non-closed shape.

7. Flexible vacuum compression bag according to claim 6, characterized in that the first membrane area (31) is formed in a closed shape and the second membrane areas (32) are completely separated by interruptions, forming several mutually independent cavities (24), said cavities (24) being filled with gas but not formed as full bubble-like structures.

8. A flexible vacuum compression bag according to claim 1, 2, 3, 5 or 7 wherein the flexible bag sheet (20) is further provided with a fused region (25) formed by heat-pressure fusing the first film sheet (21) to the second film sheet (22), the fused region (25) being provided adjacent to a bottom edge, side edge or opening of the bag body (1).

9. A flexible bag body comprises a bag body (1) formed by a plurality of bag sheets (2), wherein the bag body (1) is provided with an opening (3); the bag is characterized in that at least one bag sheet (2) is a flexible bag sheet (20), the flexible bag sheet (20) is provided with at least two layers of film sheets and comprises a first film sheet (21) and a second film sheet (22), the first film sheet (21) and the second film sheet (22) are correspondingly provided with a first film area (31) and a second film area (32), the first film sheet (21) and the second film sheet (22) are mutually compounded at the first film area (31), the first film sheet (21) and the second film sheet (22) are mutually separated at the second film area (32), and the second film area (32) is not formed into a full bubble-shaped structure.

10. Flexible pouch according to claim 9, characterized in that at the first film zone (31) the first film sheet (21) is made integral with the second film sheet (22) by thermal fusion, an adhesive is applied between the two sheets to adhere them together, or an intermediate layer (23) for thermal fusion is provided between the two sheets to thermally fuse them together at the first film zone (31).

11. Flexible pouch according to claim 10, characterized in that said second film zones (32) have a circular, oval, triangular, quadrangular or hexagonal shape, the shape or size of each second film zone (32) being identical or different.

12. Flexible pouch according to claim 9 or 10, characterized in that at the second film zone (32) a cavity (24) is formed between said first (21) and second (22) films, the cavity (24) being filled with gas but not being formed as a full bubble-like structure, the gap between the first (21) and second (22) films being 0.01-1 mm.

13. Flexible pouch according to claim 9 or 10, characterized in that said first film zone (31) is formed in a closed shape and each second film zone (32) is completely interrupted and separated, forming a plurality of cavities (24) independent of each other, said cavities (24) being filled with gas but not being formed in a full bubble-like structure.

14. The flexible bag body according to claim 9 or 10, wherein said flexible bag sheet (20) is further provided with a fused region (25) formed by heat-pressure fusing the first film sheet (21) and the second film sheet (22), said fused region (25) being disposed adjacent to a bottom edge, side edge or opening of the bag body (1); a buckling device (30) is also arranged at the opening (3), and the buckling device (30) is a self-sealing zipper.