CN107640426A - Packaging bag - Google Patents

Abstract

The present invention provides a kind of packaging bag, the packaging bag includes bag film and bag inner chamber, the bag film surrounds the bag inner chamber, the packaging bag also includes air bag post, the air bag post includes balloon membranes and the airbag chamber surrounded by the balloon membranes, the air bag post is attached on the bag film, and the air bag post extends to the edge of the bag film, and the airbag chamber does not connect with the bag inner chamber.The packaging bag of the present invention can keep the corner of packaging bag not collapse, and prevent the article in bag to be damaged, can also keep the attractive in appearance of packaging bag, and eliminate and plastic sheet is placed in packaging bag, save material, protect environment.

Description

packing bag

technical field

The invention relates to the field of packaging, in particular to a packaging bag.

Background technique

Existing small food packaging bags (except potato chip inflatables) are all flat bag-type packaging, and the corners will collapse when placed or hung on the shelf, which not only affects the sales image, but also may cause the items in the bag to break . The solution in the prior art is to place a plastic sheet in the bag, and use the hardness of the sheet to support the bag to prevent the bag from collapsing. However, placing the plastic sheet cannot ensure that the plastic sheet is in the correct position, and it cannot prevent the bag body from collapsing well, and the plastic sheet will still damage the contents of the bag, and the plastic sheet is a waste of material and may be discarded everywhere after use ,polluted environment.

Contents of the invention

The technical problem to be solved by the present invention is to provide a packaging bag in order to make up for the defects in the prior art that the bag body is easy to collapse, the items in the bag are easy to be damaged, and materials are wasted.

The present invention solves the above technical problems through the following technical solutions:

A packaging bag, the packaging bag includes a bag film and a bag inner cavity, and the bag film surrounds the bag inner cavity, and is characterized in that the packaging bag also includes an air bag column, and the air bag column includes an air bag film and The airbag cavity surrounded by the airbag film, the airbag column is attached to the bag film, the airbag column extends to the corner of the bag film, and the airbag cavity is not connected to the inner cavity of the bag . The strength of the airbag column is used to support the shape of the bag body. The airbag column is attached to the bag film, which can protect the airbag column from damage. The airbag column extends to the corner of the bag film, so that it can support the corner of the bag film. Prevents collapse of corners. The airbag cavity is not connected to the inner cavity of the bag, so that the airbag column can maintain its strength and play a role in supporting the packaging bag. At the same time, the airbag column can still support the packaging bag when the packaging bag is not inflated or even under negative pressure. .

Preferably, the airbag column is straight. The linear airbag column is easy to process, the process is simple, and the cost is low.

Preferably, one airbag column is arranged laterally on the upper part of the bag film. Since the two upper corners of the packaging bag are most likely to collapse, only a horizontal straight airbag column can solve the problem, which is simple and practical, and effectively prevents the upper corners of the packaging bag from collapsing.

Preferably, there are multiple airbag columns, and the multiple airbag columns are longitudinally arranged on the bag film. Multiple airbag columns can keep the shape of the whole bag, and the airbag columns are arranged vertically to withstand greater pressure.

Preferably, the multiple airbag columns are not connected to each other. A plurality of airbag columns are not connected to each other, so even if some airbag columns are damaged, there are still airbag columns to maintain the shape of the packaging bag.

Preferably, the airbag column includes four forked parts, the four forked parts communicate with each other in the middle of the bag film, and the forked parts respectively extend to four corners of the bag film. The four forks form an X shape, and the X-shaped airbag column can keep the shape of the four corners of the packaging bag. At the same time, because the X-shaped airbag column is cross-shaped, it can withstand pressure from all directions.

Preferably, the airbag column includes two transverse parts and an oblique part, the two transverse parts are respectively located at the upper part and the lower part of the bag film, and the oblique part is connected end to end with the two transverse parts, so The airbag column passes through the four corners of the bag film. Two horizontal parts and one oblique part form a Z shape, and the Z-shaped air bag column can keep the upper and lower parts of the packaging bag flat, and can also provide support in the longitudinal direction.

Preferably, the airbag column includes a transverse portion and a vertical portion, the transverse portion is located at the upper portion of the bag film, and the vertical portion is located at the middle of the bag film. The transverse part and the vertical part form a T shape, and the T-shaped airbag column can provide higher longitudinal strength, and at the same time, the transverse part can also keep the upper corner of the packaging bag from collapsing.

The air bag column is provided with an inflation port, and the bag film is provided with a bag sealing port. According to different positions of the airbag, the inflation port and the sealing port can be located in different positions of the packaging bag. Preferably, the inflation port is located at the mouth of the envelope. The inflation port and the bag sealing port are located at the same position. When the product is filled, the airbag column can be inflated, and the airbag column can also be sealed when the bag film is sealed, which simplifies the process and reduces the cost. On the finally formed packaging bag, the inflation port and the sealing port are all closed.

Preferably, the airbag film is integrally formed with the bag film. The airbag membrane and the bag membrane are integrally formed, which can not only ensure the strength of the airbag column, but also simplify the process and reduce the cost.

Those of ordinary skill in the art should know how to prepare the packaging bag of the present invention through conventional processes in the art.

On the basis of conforming to common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain preferred examples of the present invention.

The positive and progressive effect of the present invention is that the packaging bag of the present invention can keep the corners of the packaging bag from collapsing, prevent the items in the bag from being damaged, and can also maintain the appearance of the packaging bag, and it saves the need to place plastic sheets in the packaging bag. , saving materials and protecting the environment.

Description of drawings

Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of Embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of Embodiment 3 of the present invention.

Fig. 4 is a schematic structural diagram of Embodiment 4 of the present invention.

Fig. 5 is a schematic structural diagram of Embodiment 5 of the present invention.

Explanation of reference signs:

bag film 1

airbag column 2

Forks 21

cross section 22

oblique 23

Lateral section 24

vertical section 25

detailed description

The present invention will be described more clearly and completely through the following embodiments in conjunction with the accompanying drawings.

Example 1

The packaging bag of this embodiment is shown in Figure 1, the packaging bag includes a bag film 1 and a bag inner cavity, the bag film 1 surrounds the bag inner cavity, and the packaging bag also includes an airbag column 2, the The airbag column 2 includes an airbag membrane and an airbag chamber surrounded by the airbag membrane, the airbag column 2 is attached to the bag membrane 1, and the airbag column 2 extends to the corner of the bag membrane 1, so The cavity of the airbag is not connected with the inner cavity of the bag. The strength of the airbag column 2 is used to support the shape of the bag body. The airbag column 2 is attached to the bag film 1, which can protect the airbag column 2 from damage. The airbag column 2 extends to the corner of the bag film 1, so that it can support The corners of the bag film 1 prevent the corners from collapsing. The airbag cavity is not connected to the inner cavity of the bag, so that the airbag column 2 can maintain the strength and support the packaging bag. At the same time, the airbag column 2 can still support the packaging bag when the packaging bag is not inflated or even under negative pressure. role.

The airbag column 2 is straight. The linear airbag column 2 is easy to process, simple in process and low in cost. The airbag column 2 has an inflation port, the bag film 1 has a sealing port, and the inflation port is located at the sealing port. The inflation port and the bag sealing port are at the same position, and the airbag column 2 can be inflated while the product is being filled, and the airbag column 2 can also be sealed when the bag film 1 is sealed, which simplifies the process and reduces the cost. The airbag film is integrally formed with the bag film 1 . The airbag membrane and the bag membrane 1 are integrally formed, which can not only ensure the strength of the airbag column 2, but also simplify the process and reduce the cost. The airbag column 2 is one, and is arranged laterally on the upper part of the bag film 1 . Since the two upper corners of the packaging bag are most likely to collapse, only one horizontal straight airbag column 2 can solve the problem, which is simple and practical, and effectively prevents the upper corners of the packaging bag from collapsing.

Example 2

Embodiment 2 is basically the same as Embodiment 1, the difference is that in Embodiment 2, as shown in Figure 2, there are multiple airbag columns 2, and multiple airbag columns 2 are longitudinally arranged on the bag film 1 on. A plurality of airbag columns 2 can keep the shape of the entire packaging bag, and the airbag columns 2 are vertically arranged to withstand greater pressure. The multiple airbag columns 2 are not connected to each other. A plurality of airbag columns 2 are not connected to each other, so even if some airbag columns 2 are damaged, there are still airbag columns 2 that can maintain the shape of the packaging bag.

Example 3

Embodiment 3 is basically the same as Embodiment 1, except that in Embodiment 3, as shown in FIG. The middle parts of the bag film 1 communicate with each other, and the bifurcated parts 21 respectively extend to the four corners of the bag film 1 . The four bifurcated parts 21 form an X shape, and the X-shaped airbag column 2 can keep the shape of the four corners of the packaging bag. At the same time, because the X-shaped airbag column 2 is cross-shaped, it can withstand pressure from all directions.

Example 4

Embodiment 4 is basically the same as Embodiment 1, except that in Embodiment 4, as shown in FIG. Located at the upper and lower parts of the bag film 1 respectively, the inclined part 23 and the two transverse parts 22 are connected end to end, and the airbag column 2 passes through the four corners of the bag film 1 . Two transverse parts 22 and one inclined part 23 form a Z shape, and the Z-shaped airbag column 2 can keep the upper and lower parts of the packaging bag flat, and can also provide support in the longitudinal direction.

Example 5

Embodiment 5 is basically the same as Embodiment 1, the difference is that in Embodiment 5, as shown in FIG. The upper part of the bag film 1 , the vertical portion 25 is located in the middle of the bag film 1 . The transverse part 24 and the vertical part 25 form a T shape, and the T-shaped airbag column 2 can provide higher longitudinal strength, and the transverse part 24 can also keep the upper corner of the packaging bag from collapsing.

The packaging bags of Embodiment 1 to Embodiment 5 can keep the corners of the packaging bag from collapsing, prevent the items in the bag from being damaged, and also maintain the appearance of the packaging bag, and save plastic sheets in the packaging bag, saving materials, protecting the environment.

Although the specific implementation of the present invention has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims (9)

1. A packaging bag, the packaging bag comprises a bag film and a bag inner chamber, the bag film surrounds the bag inner cavity, it is characterized in that the packaging bag also includes an airbag column, and the airbag column includes an airbag film and the air bag cavity surrounded by the air bag film, the air bag column is attached to the bag film, the air bag column extends to the corner of the bag film, the air bag cavity and the bag inner cavity Not connected. 2. The packaging bag according to claim 1, characterized in that, the air bag columns are linear. 3 . The packaging bag according to claim 1 , wherein there is one airbag column, and the airbag column is arranged transversely on the upper part of the bag film. 4 . 4. The packaging bag according to claim 1, characterized in that there are multiple airbag columns, and the plurality of airbag columns are longitudinally arranged on the bag film. 5. The packaging bag according to claim 4, characterized in that, the plurality of airbag columns are not connected to each other. 6. The packaging bag according to claim 1, wherein the airbag column comprises four bifurcated parts, and the four bifurcated parts communicate with each other in the middle of the bag film, and the bifurcated parts are respectively Extend to the four corners of the bag film. 7. The packaging bag according to claim 1, wherein the airbag post comprises two transverse portions and an oblique portion, the two transverse portions are located at the upper and lower portions of the bag film respectively, and the oblique portion The two transverse parts are connected end to end, and the airbag column passes through the four corners of the bag film. 8. The packaging bag according to claim 1, wherein the airbag column comprises a transverse portion and a vertical portion, the transverse portion is positioned on the upper portion of the bag film, and the vertical portion is positioned on the top of the bag film. of the middle. 9. The packaging bag according to any one of the preceding claims, wherein the air bag film is integrally formed with the bag film.