Packaging bag of explosion-proof bag

Abstract

The utility model relates to the field of hygienic product packaging bags, in particular to an anti-explosion packaging bag which comprises a bag body, a ventilation structure is arranged on the upper portion of the bag body, the ventilation structure is a ventilation opening reserved in a hot pressing line on the top of the bag body, and the ventilation opening is formed in the overlapping position of a front bag face, a rear bag face and side bag faces of the bag body. Or the ventilation structure is a glue-free seam arranged on a label used for sealing the object taking opening of the bag body, and the label can be communicated with the object taking opening through the glue-free seam after sealing the object taking opening. The packaging bag can effectively ventilate, prevent bag explosion and effectively prevent dust from entering the bag, and solves the problem that in the prior art, due to the structure that a plurality of air holes are formed, the structural strength of a sealing opening of the packaging bag is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sanitary product packaging bag, specifically to an anti-explosion bag packaging bag. BACKGROUND

[0002] The packaging bag of sanitary napkin requires good sealing to prevent the sanitary napkin in the bag from being polluted, but the current sanitary napkin packaging bag is not vacuum packaging, so it is easy to burst when being squeezed in plateau areas.

[0003] In order to avoid the bursting of the sanitary napkin packaging bag, the prior art discloses various packaging bag ventilation structures, for example, directly punching holes on the side of the packaging bag for ventilation. Through the inventor's experiment, it is found that although this method can ensure the ventilation of the packaging bag and avoid the bursting of the packaging bag, dust is easy to enter the packaging bag from the ventilation hole, causing pollution of the sanitary napkin, and in addition, it is easy to mislead consumers about the integrity of the packaging bag, causing unnecessary safety panic.

[0004] For example, the packaging bag ventilation structure disclosed in Chinese patent A sanitary product packaging bag (publication number: CN209535855U; application date: 2018-12-10) and Chinese patent A ventilation packaging bag (publication number: CN2221561Y; application date: 1995-05-26) uniformly sets multiple ventilation holes on the sealing part of the packaging bag for ventilation. Although this method improves the dustproof effect in preventing the bursting of the packaging bag, it still has the following disadvantages:

[0005] Too many ventilation holes increase the risk of dust entering the packaging bag, and at the same time, they also reduce the structural strength and sealing effect of the sealing part of the packaging bag, causing the packaging bag to be easily layered or even torn from the ventilation hole. UTILITY MODEL CONTENTS

[0006] The utility model intends to provide an anti-explosion bag packaging bag to solve the problem of the reduction of the structural strength of the sealing part of the packaging bag caused by the structure of setting multiple ventilation holes in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] The anti-explosion bag packaging bag comprises a bag body, a ventilation structure is arranged on the upper part of the bag body, the ventilation structure is a ventilation hole reserved on the heat pressing line on the top of the bag body, and the ventilation hole is arranged at the overlapping part of the front bag surface, the rear bag surface and the side bag surface of the bag body; or the ventilation structure is a glue-free seam arranged on the label used to seal the taking opening of the bag body, and the label can communicate with the taking opening through the glue-free seam after sealing the taking opening.

[0009] The principle and advantages of the present scheme are as follows:

[0010] 1. This solution leaves ventilation openings on the heat-pressed lines at the overlap of the front and back bag surfaces and the side bag surfaces of the bag body. This not only allows for ventilation and prevents the bag from bursting, but also ensures the structural strength of the bag body and the structural strength of the sealing area, compared to setting ventilation openings at the two-layer structure where only the front and back bag surfaces overlap in the middle of the bag body. This makes it less likely for the bag body to delaminate or tear from the ventilation openings.

[0011] 2. This design features only one vent, which provides better structural strength and sealing at the bag's closure compared to existing technologies that use multiple vents along the heat-sealing line. Furthermore, the single vent design minimizes structural changes to the bag, reducing the likelihood of consumers misinterpreting the bag's integrity.

[0012] 3. Setting the vents at the overlap of the front and rear bag surfaces and the side bag surfaces has another beneficial effect. Specifically, since the side bag surfaces are folded inward between the front and rear bag surfaces, the pre-reserved gap in the heat-sealing line will form a vent between the back side of the front bag surface and the side bag surface after folding in. At the same time, a vent will also be formed between the other side side of the rear bag surface and the other side bag surface after folding in. That is, the two vents are set up to overlap, which improves the ventilation effect. However, since the two vents are separated by the two folded sides of the side bag surface, the two vents are naturally sealed due to the four overlapping bag surfaces, making it difficult for external dust to enter the bag, thus achieving a good dustproof effect.

[0013] 4. Another solution provided in this plan involves creating a seamless adhesive layer on the label. This seamless layer connects to the inside of the bag, achieving breathability. The seamless layer also has a certain length, effectively preventing dust from entering. Most importantly, this method does not require altering the structure of the heat-sealing thread, ensuring the structural strength of both the heat-sealing thread and the bag itself. Furthermore, creating a seamless label is easier to peel off compared to applying the label across the entire surface.

[0014] Preferably, as an improvement, the distance between the heat-sealing line and the top edge of the bag is 6-8 mm.

[0015] Beneficial effects: This solution can achieve a combination of dust prevention and material saving. If the distance between the heat-sealing line and the top edge of the bag is too small, it will be easier for external dust to enter the bag, and the dust prevention effect will not be ideal. Conversely, if the distance is too large, more material will be needed, increasing the material cost.

[0016] Preferably, as an improvement, the width of the vent is 1-3mm.

[0017] Beneficial effects: This solution can achieve a combination of simplified process, breathability and dust prevention. If the width of the vent is too small, the breathability will be poor and the gap between the two heat-pressed lines will be too small, making the process difficult. Conversely, although the process is simple, external dust can easily enter the bag, resulting in an unsatisfactory dust prevention effect.

[0018] Preferably, as an improvement, the distance from the hot-pressing line to the top of the label is 5-6 mm.

[0019] Beneficial effects: the present scheme can improve the appearance of the bag; if the distance from the hot-pressing line to the top of the label is too small, the label is too high, and the printing or logo on the label is difficult to be seen completely from the front; on the contrary, the label is too low, and the pattern and logo on the front of the bag are blocked.

[0020] Preferably, as an improvement, the hot-pressing line comprises a first half hot-pressing line and a second half hot-pressing line, the first half hot-pressing line and the second half hot-pressing line are arranged in an up-down staggered manner, and a ventilation gap is formed between the first half hot-pressing line and the second half hot-pressing line, and the ventilation gap is communicated with the ventilation opening.

[0021] Beneficial effects: the two half hot-pressing lines arranged in an up-down staggered manner form a ventilation gap communicated with the ventilation opening, the vertical outward ventilation path is changed into a bent ventilation path along the ventilation gap, the staggered part of the two half hot-pressing lines forms an 'obstacle' for dust entering the bag, the difficulty of dust entering the bag is increased, and the dustproof effect is improved.

[0022] Preferably, as an improvement, a short hot-pressing line is arranged above or below the ventilation opening, the short hot-pressing line is aligned with the ventilation opening, and the length of the short hot-pressing line is greater than the width of the ventilation opening.

[0023] Beneficial effects: in the present scheme, the short hot-pressing line can also change the vertical outward ventilation path into a bent path, increase the difficulty of dust entering the bag, and improve the dustproof effect.

[0024] Preferably, as an improvement, the glueless seam is arranged on one side of the label.

[0025] Beneficial effects: the glueless seam is arranged on the side of the label instead of the middle, and the existence of the glueless seam is weakened.

[0026] Preferably, as an improvement, the glueless seam is in a fold line shape or a curve shape.

[0027] Beneficial effects: compared with the straight glueless seam, the fold line shape and the curve shape of the glueless seam can hinder the dust through the bending part, increase the difficulty of dust entering the bag, and improve the dustproof effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a structural schematic view of the present utility model embodiment 1.

[0029] Figure 2 FIG. 2 is a top view of the bag opening in the present utility model embodiment 1.

[0030] Figure 3 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0031] Figure 4 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0032] Figure 5 This is a structural schematic diagram of Embodiment 4 of the present invention.

[0033] Figure 6 This is a structural schematic diagram of Embodiment 5 of the present invention.

[0034] Figure 7 This is a structural schematic diagram of Embodiment 6 of the present invention. Detailed Implementation

[0035] The following detailed description illustrates the specific implementation method:

[0036] The reference numerals in the accompanying drawings include: bag body 1, front bag surface 11, side bag surface 12, back bag surface 13, opening 14, two-layer bag surface 15, four-layer bag surface 16, heat-sealed line 2, first half heat-sealed line 21, second half heat-sealed line 22, ventilation seam 23, short heat-sealed line 24, ventilation opening 3, label 4, and adhesive-free seam 41.

[0037] Example 1:

[0038] like Figure 1 As shown, the explosion-proof bag packaging bag includes a bag body 1. The upper part of the bag body 1 has a breathable structure, which is a vent 3 pre-installed on the heat-sealing line 2 at the top of the bag body 1. The vent 3 is located at the four layers of bag surface 16 formed by the overlapping of the front bag surface 11, the rear bag surface 13, and the side bag surface 12 of the bag body 1 (the top two sides of the bag body 1 have four layers of bag surface 16, and the middle has two layers of bag surface 15; in this embodiment, the vent 3 is located on the four layers of bag surface 16 on the left side). The width of the vent 3 is 1-3 mm, preferably 2 mm in this embodiment. During processing, two heat-sealing lines 2 are successively heat-sealed, and the vent 3 is formed by leaving a gap between the two heat-sealing lines 2. The process is simple.

[0039] Combination Figure 2As shown, in actual use, when in a plateau environment or the bag body 1 is squeezed, it can be ventilated smoothly through the air vent 3 to prevent the bag from exploding. In this embodiment, the air vent 3 is arranged at the overlapping position of the front and rear bag surfaces 13 and the side bag surface 12 of the bag body 1. Since the side bag surface 12 is folded inward between the front and rear bag surfaces 13, the heat sealing line 2 forms an air vent 3 between the front bag surface 11 and the side bag surface 12 folded into the rear surface, and also forms an air vent 3 between the rear bag surface 13 and the side bag surface 12 folded into the other surface, that is, two air vents 3 are arranged in front of and behind each other, and the ventilation effect is better. However, because the two air vents 3 are separated by the two surfaces folded by the side bag surface 12, the two air vents 3 are closed due to the adhesion of the four overlapping bag surfaces in a natural state (not in a heat-sealed state), and external dust is difficult to enter the bag, thereby achieving good dustproof effect. In addition, compared with arranging the air vent 3 at the two-layer bag surface 15 where the front bag surface 11 and the rear bag surface 13 overlap in the middle of the bag body 1, the structural strength of the bag body 1 and the structural strength of the sealing portion are ensured, and the bag body 1 is not easy to be layered or torn from the air vent 3. Figure 2 The position relationship of the side bag surface 12, the front bag surface 11 and the rear bag surface 13 is shown, not in a heat-sealed state), external dust is difficult to enter the bag, and good dustproof effect can be achieved. In addition, compared with arranging the air vent 3 at the two-layer bag surface 15 where the front bag surface 11 and the rear bag surface 13 overlap in the middle of the bag body 1, the structural strength of the bag body 1 and the structural strength of the sealing portion are ensured, and the bag body 1 is not easy to be layered or torn from the air vent 3.

[0040] Embodiment 2:

[0041] As shown, the difference between this embodiment and embodiment 1 is that the air ventilation structure is a glue-free seam 41 formed on the label 4 for sealing the access port 14 of the bag body 1, and the label 4 can communicate with the access port 14 through the glue-free seam 41 after sealing the access port 14. Figure 3 The air ventilation structure of this embodiment does not need to change the structure of the heat sealing line 2, which ensures the structural strength of the heat sealing line 2 and the structural strength of the bag body 1, and the glue-free seam 41 has a certain length, which can also effectively prevent dust from entering the bag.

[0042] Embodiment 3:

[0043] As shown, the difference between this embodiment and embodiment 1 is that the distance a between the heat sealing line 2 and the top edge of the bag body 1 is 6-8 mm.

[0044] Figure 4 Embodiment 4:

[0045] As shown, the difference between this embodiment and embodiment 1 is that the distance b between the heat sealing line 2 and the top of the label 4 is 5-6 mm.

[0046] Embodiment 5: Figure 5 As shown, the difference between this embodiment and embodiment 1 is that the distance b between the heat sealing line 2 and the top of the label 4 is 5-6 mm.

[0047]

[0048] As shown, the difference between this embodiment and embodiment 1 is that the distance b between the heat sealing line 2 and the top of the label 4 is 5-6 mm. Figure 6 ​​As shown, the difference between the present embodiment and embodiment 1 is that the heat pressing line 2 comprises a first half heat pressing line 21 and a second half heat pressing line 22, the first half heat pressing line 21 and the second half heat pressing line 22 are arranged in an up-down staggered manner, and a ventilation gap 23 is formed between the first half heat pressing line 21 and the second half heat pressing line 22, the ventilation gap 23 is in communication with the ventilation port 3.

[0049] The ventilation structure of the present embodiment can change the vertical outward ventilation path into a ventilation path that is bent along the ventilation gap 23 (see the dotted arrow in FIG. 6), so that the staggered parts of the two half heat pressing lines 2 form an "obstacle" for dust entering the bag (because the front bag surface 11, the side bag surface 12 and the rear bag surface 13 are attached in the natural state after the bag opening is heat pressed), increasing the difficulty of dust entering the bag and improving the dust prevention effect. Figure 6

[0050] Embodiment 6:

[0051] As shown, the difference between the present embodiment and embodiment 1 is that a short heat pressing line 24 is arranged above or below the ventilation port 3, the short heat pressing line 24 is aligned with the ventilation port 3 and the length of the short heat pressing line 24 is greater than the width of the ventilation port 3, and in the present embodiment, the short heat pressing line 24 is arranged above the ventilation port 3. Figure 7 The ventilation structure of the present embodiment can change the vertical outward ventilation path into a path that is bent out from both sides of the short heat pressing line 24, and can also increase the difficulty of dust entering the bag and improve the dust prevention effect.

[0052] Embodiment 7:

[0053] The difference between the present embodiment and embodiment 2 is that the glueless seam 41 is arranged on one side of the label 4, and in the present embodiment, the glueless seam 41 is arranged on the left side of the label 4. The present embodiment can weaken the presence of the glueless seam 41 and ensure the aesthetic degree of the bag body 1.

[0054] Embodiment 8:

[0055] The difference between the present embodiment and embodiment 2 is that the glueless seam 41 is in the shape of a fold line or a curve, and the glueless seam 41 in the shape of a fold line or a curve can cause "obstruction" to dust through the bending part, thereby increasing the difficulty of dust entering the bag and improving the dust prevention effect.

[0056]

[0057] ​​The above only is the embodiment of the present application, and the well-known specific technical solutions and / or common knowledge in the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. An explosion-proof bag packaging bag, characterized by: The bag body is provided with a breathable structure on the upper part, the breathable structure is a breathable hole reserved on the heat pressing line on the top of the bag body, the breathable hole is arranged at the overlapping position of the front bag surface, the rear bag surface and the side bag surface; or the breathable structure is a glue-free seam arranged on the label for sealing the taking opening of the bag body, the label can communicate with the taking opening through the glue-free seam after sealing the taking opening.

2. The explosion-proof bag packaging bag according to claim 1, characterized in that: The distance between the heat pressing line and the edge of the top of the bag body is 6-8 mm.

3. A burst bag packaging bag according to claim 1 or 2, characterized in that: The width of the breathable hole is 1-3 mm.

4. The explosion-proof bag packaging bag according to claim 1 or 2, characterized by: The distance between the heat pressing line and the top of the label is 5-6 mm.

5. The explosion-proof bag packaging bag according to claim 1, characterized in that: The heat pressing line comprises a first half heat pressing line and a second half heat pressing line, the first half heat pressing line and the second half heat pressing line are arranged in an upper and lower staggered mode, a breathable seam is formed between the first half heat pressing line and the second half heat pressing line, and the breathable seam communicates with the breathable hole.

6. The explosion-proof bag packaging bag according to claim 1, characterized in that: A short heat pressing line is arranged above or below the breathable hole, the short heat pressing line is aligned with the breathable hole, and the length of the short heat pressing line is greater than the width of the breathable hole.

7. The explosion-proof bag packaging bag according to claim 1, characterized by: The glue-free seam is arranged on one side of the label.

8. The explosion-proof bag packaging bag according to claim 7, characterized in that: The glue-free seam is in the shape of a fold line or a curve.

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