Zipper self-standing bag
By using guide strips and double-sealed zipper design, the problem of easily damaged sealing zippers when the stand-up pouch is torn is solved, achieving neatness when torn and double sealing, thus ensuring the sealing reliability of the stand-up pouch.
Patent Information
- Application Number
- CN202520099613.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing stand-up pouches are prone to tearing the sealing zipper during the tearing process, resulting in a significant reduction in sealing performance and poor overall reliability.
The bag is designed with a guide strip, a first sealing chain, and a second sealing chain. The bag opening is torn along the guide strip through the easy-tear opening, avoiding tearing the sealing chain. After tearing, the two sealing chains can be used for double sealing as needed.
To ensure a neat opening when torn, avoid damage to the seal, and ensure a good sealing effect, the stand-up pouch achieves good sealing performance under different conditions during use.
Smart Images
Figure CN223765080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging tools, and in particular to a zipper stand-up pouch. Background Technology
[0002] Stand-up pouches are a commonly used type of packaging bag. The current structure of stand-up pouches is shown in patent CN304771325S. There is a problem with this type of stand-up pouch when in use: it only has a sealing zipper at the top. If too much force is used when tearing the stand-up pouch, the sealing zipper can be easily torn. Once the sealing zipper is torn, the resealing ability of the entire packaging bag will be greatly reduced, resulting in poor overall reliability. Utility Model Content
[0003] To address the aforementioned problems, this utility model proposes a zippered stand-up pouch. By setting guide strips, a first sealing zipper, and a second sealing zipper, it ensures a neat opening when torn, avoids tearing the sealing zipper when torn, and allows for double sealing using the first and second sealing zippers as needed after opening, ensuring a good sealing effect.
[0004] The technical solution adopted by this utility model is as follows:
[0005] A zip-lock stand-up pouch includes a bag body with an opening and a bottom. A first sealing zipper and a second sealing zipper are disposed within the bag body. The first sealing zipper is located between the bottom and the opening, and the second sealing zipper is located between the bottom and the first sealing zipper. The first and second sealing zippers are parallel and do not contact each other. A guide strip is provided on the inner wall of the bag body, parallel to the first and second sealing zippers. An easy-tear opening is provided on the bag body, with the guide strip located between the first sealing zipper and the guide strip, and the easy-tear opening located between the opening and the guide strip.
[0006] The guide strip can be made of PP (polypropylene) or PE (polyethylene). The guide strip is fixed to the inner wall of the bag by heat bonding.
[0007] In this type of self-standing bag, when an object is placed inside the bag, the bag opening can be sealed by heat sealing, and the bag stands upright through the bottom.
[0008] This type of stand-up pouch can be torn open again after sealing using the easy-tear opening. Since the easy-tear opening is located between the bag opening and the guide strip, the bag opening is torn along the guide strip through the easy-tear opening, thus preventing the first sealing chain from tearing and ensuring a neat tear. Simultaneously, this type of stand-up pouch, by incorporating a first sealing chain and a second sealing chain, divides the internal space of the bag into two parts when the second sealing chain is closed. When the bag contains a large number of items, the first sealing chain can be used for sealing. When the bag contains fewer items (below the second sealing chain), both the first and second sealing chains can be used for sealing, ensuring a good sealing effect. When the stand-up pouch is first torn open, it contains a large number of items, and the entire stand-up pouch is sealed using the first sealing chain. After some items have been taken out (i.e., after the entire bag has been open for a period of time), the entire stand-up pouch is sealed using the second sealing chain.
[0009] Meanwhile, this type of stand-up pouch, by setting guide strips, a first sealing chain and a second sealing chain, ensures that the opening is neat when torn, avoids tearing the sealing chain when torn, and after opening, the first sealing chain and the second sealing chain can be used for double sealing as needed to ensure good sealing effect.
[0010] Optionally, the tear opening is triangular.
[0011] Optionally, it includes a first bag sheet and a second bag sheet, which are combined to form a bag body.
[0012] Optionally, the first bag sheet includes a heat-sealable polyethylene film, a nylon film, and an oriented polypropylene film, wherein the nylon film is disposed between the heat-sealable polyethylene film and the oriented polypropylene film.
[0013] Optionally, the second bag sheet includes a heat-sealable polyethylene film, an aluminized PET film, and an oriented polypropylene film, wherein the aluminized PET film is disposed between the heat-sealable polyethylene film and the oriented polypropylene film.
[0014] The beneficial effects of this utility model are: by setting guide strips, first sealing clamps and second sealing clamps, the opening is ensured to be neat when it is torn, and the sealing clamps are prevented from being torn when it is torn. After opening, the first sealing clamp and the second sealing clamp can be used for double sealing as needed to ensure good sealing effect. Attached Figure Description
[0015] 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.
[0016] Figure 1 This is a schematic diagram showing the positional relationship between the first sealing chain and the second sealing chain inside the bag;
[0017] Figure 2 This is a simplified structural diagram of the first bag of sheets;
[0018] Figure 3 This is a simplified structural diagram of the second bag sheet.
[0019] The labels in the attached figures are as follows: 101, bag opening; 102, bag bottom; 103, heat-sealed bonding area; 104, easy-tear opening; 2, guide strip; 301, first sealing chain; 302, second sealing chain; 11, oriented polypropylene film; 12, heat-sealed polyethylene film; 13, nylon film; 14, aluminized PET film. Detailed Implementation
[0020] 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.
[0021] 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.
[0022] 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.
[0023] Combined with appendix Figure 1As shown, a zippered stand-up pouch includes a bag body with a bag opening 101 and a bag bottom 102. A first sealing zipper 301 and a second sealing zipper 302 are disposed inside the bag body. The first sealing zipper 301 is located between the bag bottom 102 and the bag opening 101, and the second sealing zipper 302 is located between the bag bottom 102 and the first sealing zipper 301. The first sealing zipper 301 and the second sealing zipper 302 are parallel and do not contact each other. A guide strip 2 is provided on the inner wall of the bag body, parallel to the first sealing zipper 301 and the second sealing zipper 302. An easy-tear opening 104 is provided on the bag body, with the guide strip 2 located between the first sealing zipper 301 and the guide strip 2, and the easy-tear opening 104 located between the bag opening 101 and the guide strip 2.
[0024] The guide strip 2 can be made of PP (polypropylene) or PE (polyethylene). The guide strip 2 is fixed to the inner wall of the bag by heat bonding.
[0025] In this type of self-standing bag, when an object is placed inside the bag, the bag opening 101 can be sealed by heat sealing, and the bag stands upright through the bag bottom 102.
[0026] When this type of stand-up pouch is torn open again after being sealed, it can be opened through the easy-tear opening 104. Since the easy-tear opening 104 is located between the bag opening 101 and the guide strip 2, the bag opening 101 is torn along the guide strip 2 through the easy-tear opening 104. This way, the first sealing chain 301 will not be torn during the tearing process, ensuring a neat tear opening. At the same time, in this type of stand-up pouch, by setting the first sealing chain 301 and the second sealing chain 302, the space inside the bag can be divided into two parts when the second sealing chain 302 is closed. When there are many items in the bag, the first sealing chain 301 can be used for sealing. When there are few items in the bag (below the second sealing chain 302), the first sealing chain 301 and the second sealing chain 302 can be used together to seal, ensuring a good sealing effect. When the stand-up pouch is first torn open, it contains a large number of items. The entire stand-up pouch is sealed using the first sealing chain 301. After some of the items have been taken out (i.e., after the entire pouch has been open for a period of time), the entire stand-up pouch is sealed using the second sealing chain 302.
[0027] Meanwhile, in this type of stand-up pouch, by setting guide strip 2, first sealing chain 301 and second sealing chain 302, the opening is ensured to be neat when torn, and the sealing chain is avoided from being torn when torn. After opening, the first sealing chain 301 and the second sealing chain 302 can be used for double sealing as needed to ensure good sealing effect.
[0028] Need to attach Figure 1 The following is an explanation: Figure 1The image shows the interior of one side of the bag wall, with attached... Figure 1 The shaded area in the diagram represents the heat-sealing bonding area 103.
[0029] As attached Figure 1 As shown, the easy-tear opening 104 is triangular.
[0030] As attached Figure 2 And as shown in 3, including as attached Figure 2 The first bag of sheets shown and as attached Figure 3 The second bag piece shown is formed by combining the first bag piece and the second bag piece to form the bag body.
[0031] As attached Figure 2 As shown, the first bag sheet includes a heat-sealable polyethylene film 12, a nylon film 13, and an oriented polypropylene film 11, with the nylon film 13 disposed between the heat-sealable polyethylene film 12 and the oriented polypropylene film.
[0032] As attached Figure 3 As shown, the second bag sheet includes a heat-sealable polyethylene film 12, an aluminized PET film 14, and an oriented polypropylene film 11, with the aluminized PET film 14 disposed between the heat-sealable polyethylene film 12 and the oriented polypropylene film 11.
[0033] In this type of stand-up pouch, when the first and second bag sheets are formed into the bag body, the heat-sealed polyethylene film 12 is located inside the bag body, while the oriented polypropylene film 11 is located outside the bag body. To ensure the gloss of the bag body surface, matte oil can be applied to one side of the oriented polypropylene film.
[0034] The first sealing chain and the second sealing chain are in a parallel state.
[0035] 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 chain-link self-standing bag characterized by, The bag comprises a bag body having a bag opening and a bag bottom, a first sealing clamping chain and a second sealing clamping chain are arranged in the bag body, the first sealing clamping chain is located between the bag bottom and the bag opening, the second sealing clamping chain is located between the bag bottom and the first sealing clamping chain, the first sealing clamping chain and the second sealing clamping chain are in parallel and non-contact state, a guide strip is arranged on the inner wall of the bag body, the guide strip is parallel to the first sealing clamping chain and the second sealing clamping chain, a tearable opening is arranged on the bag body, the guide strip is located between the first sealing clamping chain and the guide strip, and the tearable opening is located between the bag opening and the guide strip.
2. The pinch- link self- erecting bag according to claim 1, wherein, The tearable opening is a triangular tearable opening.
3. The pinch- link self- erecting bag of claim 1, wherein, The bag comprises a first bag piece and a second bag piece, and the first bag piece and the second bag piece are combined to form a bag body.
4. The pinch- link self- erecting bag of claim 3, wherein, The first bag piece comprises a heat-sealed polyethylene film, a nylon film and a directional polypropylene film, and the nylon film is arranged between the heat-sealed polyethylene film and the directional polypropylene film.
5. The pinch- link self- erecting bag of claim 3, wherein, The second bag piece comprises a heat-sealed polyethylene film, an aluminized PET film and a directional polypropylene film, and the aluminized PET film is arranged between the heat-sealed polyethylene film and the directional polypropylene film.
6. The pinch- link self- erecting bag of claim 1, wherein, The first sealing clamping chain and the second sealing clamping chain are in parallel state.