storage bag

By setting an arc-shaped notch at the end of the tear line, combined with the side seal and horizontal seal adhesive parts, the problem of the roll-shaped garbage bag being difficult to tear is solved, and convenient garbage bag separation is achieved.

CN224511940UActive Publication Date: 2026-07-17杭州顶正包材有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
杭州顶正包材有限公司
Filing Date
2025-07-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing roll-shaped garbage bags are not easy to tear into individual small garbage bags when opened, and lack an auxiliary tearing structure.

Method used

A rounded notch is provided at both ends of the tear line, combined with parallel side sealing adhesive parts and transverse sealing adhesive parts, to form a structure that is easy to tear.

Benefits of technology

This makes it easier for users to tear the garbage bag from the roll into individual small garbage bags along the tear line, improving the convenience of tearing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a storage bag, including two bag sheets that fit together to form a bag roll. The bag roll contains several independent and non-communicating cavities. Arc-shaped notches are provided at both edges of the bag roll. A tear line is provided on the bag roll, with its two ends located at the two notches. Two parallel side-sealing adhesive portions are provided on the bag roll, and several horizontal sealing adhesive portions are provided between the two side-sealing adhesive portions. The distance between adjacent horizontal sealing adhesive portions is equal, and the tear line is parallel to the horizontal sealing adhesive portions. This storage bag has the following advantages: by providing arc-shaped notches at the two ends of the tear line, the presence of these notches makes it easier for the user to tear the storage bag off the bag roll along the tear line.
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Description

Technical Field

[0001] This utility model relates to the field of household products, and in particular to a storage bag. Background Technology

[0002] Roll-shaped garbage bags are a common household item. The current structure of roll-shaped garbage bags is shown in patent publication document CN213110843U. There is a problem with this type of roll-shaped garbage bag: the edges of the garbage bag are not equipped with corresponding auxiliary tearing structures. Therefore, it is not easy to tear this type of roll-shaped garbage bag into several independent small garbage bags. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a storage bag that features arc-shaped notches at both ends of the tear line. These notches make it easier for users to tear the storage bag off the roll along the tear line.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A storage bag includes two bag panels that fit together to form a bag roll. The bag roll contains several independent and non-communicating cavities. Arc-shaped notches are provided at both edges of the bag roll. A tear line is provided on the bag roll, with its two ends located at the two notches. Two parallel side-sealing adhesive portions are provided on the bag roll, and several horizontal sealing adhesive portions are provided between the two side-sealing adhesive portions. The distance between adjacent horizontal sealing adhesive portions is equal, and the tear line is parallel to the horizontal sealing adhesive portions.

[0006] In this type of storage bag, the bag pieces are joined together to form a roll of storage bag. The roll of storage bag can be torn along the tear line to form individual small storage bags for holding garbage. In this type of roll garbage bag, because the two sides of the bag roll are provided with arc-shaped notches, and the two ends of the tear line are located at the two notches respectively, the existence of the notches makes it easy for users to tear the garbage bag from the bag opening along the tear line at the notches to form several individual small garbage bags.

[0007] In summary, this type of garbage bag features arc-shaped notches at both ends of the tear line, making it easier for users to tear the bag off the roll along the tear line.

[0008] Optionally, the bag roll is provided with multiple hanging through holes, and the hanging through holes are oval in shape.

[0009] Each small garbage bag that is torn off has a hanging hole on its wall. The garbage bag can be hung in the place where it needs to be hung through the hanging hole. At the same time, the oval-shaped hanging hole ensures that the bag wall is not easily torn when hanging.

[0010] Optionally, the bag roll is provided with a dividing seal adhesive part, and each bag cavity is provided with a dividing seal adhesive part, which divides each bag cavity into an independent and interconnected solid containment cavity and a liquid containment cavity.

[0011] The divider seal consists of several non-connected arc-shaped adhesive sections. Its function is to divide the space inside the bag into independent and non-connected solid and liquid containment chambers. When the garbage bag is in use, the solid containment chamber is located at the top and the liquid containment chamber is located at the bottom. When liquid-containing garbage (including but not limited to kitchen waste) is poured into the garbage bag, some of the liquid in the garbage will seep into the liquid containment chamber, while the solid part of the garbage and a small amount of liquid will remain in the solid containment chamber. This structure that diverts some of the liquid can slow down the rate at which the garbage rots and smells bad in the garbage bag.

[0012] Optionally, the volume of the liquid containment cavity is smaller than the volume of the solid containment cavity.

[0013] Optionally, the separator sealing adhesive portion is an arc-shaped separator sealing adhesive portion, the width of the side sealing adhesive portion is equal to the width of the transverse sealing adhesive portion, and the width of the separator sealing adhesive portion is smaller than the width of the side sealing adhesive portion.

[0014] Specifically, the horizontal seal adhesive section is perpendicular to the side seal adhesive section. The separator seal adhesive section, side seal adhesive section, and horizontal seal adhesive section are all areas where two pieces of bag sheet are heat-bonded together.

[0015] Optionally, the bag sheet includes a nylon film layer, a modified polyvinyl alcohol film, and a three-layer co-extruded cast polyethylene film. The nylon film is located between the modified polyvinyl alcohol film and the three-layer co-extruded cast polyethylene film. The thickness of the nylon film is greater than the thickness of the modified polyvinyl alcohol film and the three-layer co-extruded cast polyethylene film. The modified polyvinyl alcohol film is located on the outer wall of the bag body, and the three-layer co-extruded cast polyethylene film is located on the inner wall of the bag body.

[0016] This type of bag sheet is composed of a nylon film layer, a modified polyvinyl alcohol film, and a three-layer co-extruded cast polyethylene film. This ensures that the entire bag sheet has relatively good puncture resistance and barrier properties, making it less prone to puncture during garbage bag manufacturing. Furthermore, the presence of the modified polyvinyl alcohol film and the three-layer co-extruded cast polyethylene film allows the bag sheet to be thermally bonded at any location as needed.

[0017] Optionally, the thickness of the nylon film layer is 60 micrometers to 70 micrometers.

[0018] The nylon membrane layer at this thickness ensures that the entire garbage bag has good puncture resistance.

[0019] Optionally, the thickness of the modified polyvinyl alcohol film is 20 micrometers to 30 micrometers, and the thickness of the three-layer co-extruded cast polyethylene film is 20 micrometers to 30 micrometers.

[0020] The beneficial effect of this utility model is that by setting arc-shaped notches at both ends of the tear line, the presence of the notches makes it easier for users to tear the storage bag off the roll along the tear line. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a simplified structural diagram of a garbage bag;

[0023] Figure 2 This is a simplified schematic diagram of the bag's structure.

[0024] The labels in the figures are as follows: 1. Suspension through hole; 2. Side sealing adhesive part; 3. Separator sealing adhesive part; 4. Tear line; 5. Notch; 6. Horizontal sealing adhesive part; 7. Liquid receiving cavity; 8. Solid receiving cavity; 901. Modified polyvinyl alcohol film; 902. Nylon film layer; 903. Three-layer co-extruded cast polyethylene film. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] As attached Figure 1 and appendix Figure 2 As shown, a storage bag includes two bag panels that fit together to form a bag roll. The bag roll contains several independent and non-communicating cavities. Arc-shaped notches 5 are provided on both sides of the bag roll. Tear lines 4 are provided on the bag roll, with the two ends of the tear lines 4 located at the two notches 5 respectively. Two parallel side-sealing adhesive portions 2 are provided on the bag roll. Several horizontal sealing adhesive portions 6 are provided between the two side-sealing adhesive portions 2. The distance between adjacent horizontal sealing adhesive portions 6 is equal. The tear lines 4 are parallel to the horizontal sealing adhesive portions 6.

[0029] In this type of storage bag, the bag pieces are joined together to form a roll of storage bag. Individual small garbage bags can be torn off the roll of storage bag along the tear line 4. In this type of roll-shaped storage bag, because there are arc-shaped notches 5 on both sides of the bag roll, and the two ends of the tear line 4 are located at the two notches 5 respectively, the existence of the notches 5 makes it easy for users to tear the garbage bag off the bag opening along the tear line 4 at the notches 5 to form several individual small garbage bags.

[0030] In summary, in this type of storage bag, by setting arc-shaped notches 5 at both ends of the tear line 4, the presence of notches 5 makes it easier for users to tear the garbage bag off the bag roll along the tear line 4.

[0031] As attached Figure 1 and appendix Figure 2 As shown, the bag roll has multiple hanging holes 1, and each hanging hole 1 is oval in shape.

[0032] Each small garbage bag that is torn off has a hanging hole 1 on its wall. The garbage bag can be hung in the place where it needs to be hung through the hanging hole 1. At the same time, the oval-shaped hanging hole 1 can ensure that the bag wall is not easily torn when hanging.

[0033] As attached Figure 1 and appendix Figure 2 As shown, the bag roll is provided with a dividing seal adhesive part 3, and each bag cavity is provided with a dividing seal adhesive part 3. The dividing seal adhesive part 3 divides each bag cavity into an independent and connected solid receiving cavity 8 and a liquid receiving cavity 7.

[0034] The dividing and sealing adhesive part 3 consists of several non-connected arc-shaped adhesive parts. The function of the dividing and sealing adhesive part 3 is to divide the space inside the bag cavity into independent and non-connected solid receiving cavity 8 and liquid receiving cavity 7. In this way, when the garbage bag is in use, the solid receiving cavity 8 is located above and the liquid receiving cavity 7 is located below. When liquid garbage (including but not limited to kitchen waste) is poured into the garbage bag, some of the liquid in the garbage will seep into the liquid receiving cavity 7, while the solid part of the garbage and a small amount of liquid will remain in the solid receiving cavity 8. This structure of diverting some liquid can slow down the speed at which the garbage rots and smells in the garbage bag.

[0035] As attached Figure 1 and appendix Figure 2 As shown, the volume of the liquid container 7 is smaller than the volume of the solid container 8.

[0036] As attached Figure 1 and appendix Figure 2 As shown, the partition seal adhesive part 3 is an arc-shaped partition seal adhesive part 3, the width of the side seal adhesive part 2 is equal to the width of the horizontal seal adhesive part 6, and the width of the partition seal adhesive part 3 is less than the width of the side seal adhesive part 2.

[0037] Specifically, the horizontal sealing adhesive part 6 is perpendicular to the side sealing adhesive part 2. The partition sealing adhesive part 3, the side sealing adhesive part 2, and the horizontal sealing adhesive part 6 are all areas where two pieces of bag are thermally bonded together.

[0038] As attached Figure 1 and appendix Figure 2 As shown, the bag sheet includes a nylon film layer 902, a modified polyvinyl alcohol film 901, and a three-layer co-extruded cast polyethylene film 903. The nylon film is located between the modified polyvinyl alcohol film 901 and the three-layer co-extruded cast polyethylene film 903. The thickness of the nylon film is greater than the thickness of the modified polyvinyl alcohol film 901 and the three-layer co-extruded cast polyethylene film 903. The modified polyvinyl alcohol film 901 is located on the outer wall of the bag body, and the three-layer co-extruded cast polyethylene film 903 is located on the inner wall of the bag body.

[0039] This type of bag sheet is composed of a nylon film layer 902, a modified polyvinyl alcohol film 901, and a three-layer co-extruded cast polyethylene film 903. This ensures that the entire bag sheet has relatively good puncture resistance and barrier properties, making it less prone to puncture during garbage bag manufacturing. Furthermore, the presence of the modified polyvinyl alcohol film 901 and the three-layer co-extruded cast polyethylene film 903 allows the bag sheet to be thermally bonded at any location as needed.

[0040] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the nylon film 902 is 60 micrometers to 70 micrometers.

[0041] The 902 nylon membrane layer of this thickness ensures that the entire garbage bag has good puncture resistance.

[0042] As attached Figure 1 and appendix Figure 2 As shown, the thickness of the modified polyvinyl alcohol film 901 is 20 micrometers to 30 micrometers, and the thickness of the three-layer co-extruded cast polyethylene film 903 is 20 micrometers to 30 micrometers.

[0043] It should be further noted that the storage bag disclosed in this embodiment can be used not only to store kitchen waste, but also to store other items that need to be drained.

[0044] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A storage bag, comprising two bag panels, the two bag panels being joined together to form a bag roll, the bag roll containing a plurality of independent and non-communicating bag cavities, characterized in that, The bag roll has arc-shaped notches on both sides of its edge. The bag roll has tear lines with the two ends of the tear lines located at the two notches. The bag roll has two parallel side-sealing adhesive portions. Between the two side-sealing adhesive portions are several horizontal sealing adhesive portions. The distance between two adjacent horizontal sealing adhesive portions is equal. The tear lines are parallel to the horizontal sealing adhesive portions.

2. The storage bag of claim 1 wherein, The bag roll has multiple hanging holes, and the hanging holes are oval in shape.

3. The storage bag of claim 1 wherein, The bag roll is provided with a dividing and sealing adhesive part, and each bag cavity is provided with a dividing and sealing adhesive part, which divides each bag cavity into an independent and connected solid containment cavity and a liquid containment cavity.

4. The bag of claim 3, wherein, The volume of the liquid container is smaller than the volume of the solid container.

5. The bag of claim 3, wherein, The separator sealing adhesive part is an arc-shaped separator sealing adhesive part, the width of the side sealing adhesive part is equal to the width of the horizontal sealing adhesive part, and the width of the separator sealing adhesive part is smaller than the width of the side sealing adhesive part.

6. The storage bag of claim 1 wherein, The bag sheet comprises a nylon film layer, a modified polyvinyl alcohol film, and a three-layer co-extruded cast polyethylene film. The nylon film is located between the modified polyvinyl alcohol film and the three-layer co-extruded cast polyethylene film. The thickness of the nylon film is greater than the thickness of the modified polyvinyl alcohol film and the three-layer co-extruded cast polyethylene film. The modified polyvinyl alcohol film is located on the outer wall of the bag body, and the three-layer co-extruded cast polyethylene film is located on the inner wall of the bag body.

7. The bag of claim 6, wherein, The thickness of the nylon film is 60 micrometers to 70 micrometers.

8. The storage bag of claim 7 wherein, The thickness of the modified polyvinyl alcohol film is 20 micrometers to 30 micrometers, and the thickness of the three-layer co-extruded cast polyethylene film is 20 micrometers to 30 micrometers.