Zipper standing pouch

By replacing aluminum foil with composite structures of OPPZ film, PAP and CPP films, the problems of inability to recover and iridescent phenomena of self-standing bag materials are solved, the stability and aesthetics of the bag body are achieved, and subsequent recycling and granulation are supported.

CN222845710UActive Publication Date: 2025-05-09杭州顶正包材有限公司
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Patent Information

Application Number
CN202421469113.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-25
Publication Date
2025-05-09
Estimated Expiration
2034-06-25

AI Technical Summary

Technical Problem

The existing stand-up bags contain aluminum foil, which makes the material unable to be recycled and reused, and it is easy to form an iridescent phenomenon with the polypropylene film.

Method used

The composite structure of OPPZ film, PAP and CPP film is used to replace aluminum foil, PAP is used to replace aluminum foil in the first side bag sheet, and PET film is used to replace aluminum foil in the second side bag sheet and the negative sheet to ensure the stiffness of the bag body and avoid iridescent phenomena.

Benefits of technology

The self-standing bag recycling is realized, and the iridescence phenomenon is avoided, ensuring the stability and aesthetics of the packaging.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222845710U_ABST
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Abstract

The utility model discloses a zippered doypack which comprises a bottom piece, a first side bag piece and a second side bag piece, the convenient positions of the first side bag piece and the second side bag piece are matched to form a cylindrical bag body, the bottom piece is arranged on one side of the bag body, and the bottom piece is matched with the first side bag piece and the second side bag piece together. A zipper is arranged on the other side of the bag body, the first side bag piece comprises an OPPZ film, PAP and a CPP film, and the CPP film and the OPPZ film are arranged on the two sides of the PAP; the second side bag piece comprises an OPPZ film, a PET film and a CPP film, and the CPP film and the OPPZ film are arranged on the two sides of the PET film. The negative film comprises an OPPZ film, a PET film and a CPP film, and the CPP film and the OPPZ film are arranged on the two sides of the PET film. The self-standing bag has the advantages that aluminum foil is not contained in the self-standing bag, the iridescent phenomenon cannot be generated when the self-standing bag is used, and the self-standing bag can be recycled.
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Description

Technical Field

[0001] The utility model relates to the field of packaging materials, in particular to a zipper stand-up bag. Background Art

[0002] A stand-up bag is a commonly used packaging bag. The structure of the stand-up bag currently used is roughly as shown in patent publication document CN306009982S. The bottom film and two side films of the stand-up bag of this structure are made of the same composite film. The structure of this composite film is shown in patent publication document CN201998496U, which is composed of nylon film, aluminum foil and polypropylene film, wherein the aluminum foil is located in the middle. Due to the presence of a metal film such as aluminum foil, the material of this stand-up bag cannot be recycled and reused. At the same time, the aluminum foil is also easy to form an "iris" phenomenon with the polypropylene film. Utility Model Content

[0003] Aiming at the above problems, the utility model provides a zipper stand-up bag.

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

[0005] A zipper stand-up bag, comprising a bottom sheet, a first side bag sheet and a second side bag sheet, wherein the first side bag sheet and the second side bag sheet are matched at their convenient positions to form a tubular bag body, wherein the bottom sheet is arranged on one side of the bag body, and the bottom sheet, the first side bag sheet and the second side bag sheet are matched together, and a zipper is arranged on the other side of the bag body.

[0006] The first side bag sheet includes an OPPZ film, a PAP film and a CPP film, wherein the CPP film and the OPPZ film are arranged on both sides of the PAP;

[0007] The second side bag sheet includes an OPPZ film, a PET film and a CPP film, wherein the CPP film and the OPPZ film are arranged on both sides of the PET film;

[0008] The bottom film includes an OPPZ film, a PET film and a CPP film, and the CPP film and the OPPZ film are arranged on both sides of the PET film;

[0009] The OPP film on the bottom film is bonded together with the CPP film on the first side bag sheet and the CPP film on the second side bag sheet; the CPP film on the first side bag sheet and the CPP film on the second side bag sheet are bonded together.

[0010] In this kind of stand-up bag, the first side bag sheet is made of OPPZ film (matt polypropylene film), PAP (white kraft paper) and CPP film (unstretched polypropylene film), the second side bag sheet is made of OPPZ film, PET film (polyester film) and CPP film, and the bottom film is also made of OPPZ film, PET film and CPP film. Therefore, the whole stand-up bag does not contain any aluminum foil, which is convenient for the subsequent recycling and granulation of the whole stand-up bag. At the same time, in this kind of stand-up bag, PAP is used in the first side bag sheet to cover the aluminum foil, and PET film is used in the second side bag sheet and the bottom film to replace the aluminum foil, so that the whole stand-up bag can be ensured to have good stiffness without producing iridescence.

[0011] In summary, this kind of self-supporting bag does not contain aluminum foil, will not produce iridescence when used, and can be recycled and reused.

[0012] Optionally, the thickness of the OPPZ film in the first side bag sheet is 19 um, the thickness of the PAP film is 80 um, and the thickness of the CPP film is 35 um.

[0013] Optionally, the thickness of the OPPZ film in the second side bag sheet is 19 um, the thickness of the PET film is 12 um, and the thickness of the CPP film is 60 um.

[0014] Optionally, the thickness of the OPPZ film in the bottom film is 19 um, the thickness of the PET film is 12 um, and the thickness of the CPP film is 60 um.

[0015] Optionally, the bottom film is located at the bottom of the bag body, and the zipper is located at the opening of the bag body.

[0016] The zipper used in this kind of stand-up bag is a plastic zipper.

[0017] The utility model has the beneficial effects that the self-supporting bag does not contain aluminum foil, does not produce iridescence when used, and can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a zipper stand-up bag;

[0019] Figure 2 is a schematic diagram of the structure of the first side bag piece;

[0020] Figure 3 is a schematic diagram of the structure of the second side bag piece;

[0021] Figure 4 It is a schematic diagram of the structure of the film.

[0022] The reference numerals in the figures are: 1, first side bag piece; 2, second side bag piece; 3, bottom film; 4, zipper; 101, OPPZ film; 102, CPP film; 103, PAP; 104, PET film. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings.

[0024] As attached Figure 1 ~Attached Figure 4 As shown, a zipper 4 self-supporting bag comprises a bottom film 3, a first side bag film 1 and a second side bag film 2. The first side bag film 1 and the second side bag film 2 are matched at their convenient positions to form a tubular bag body. The bottom film 3 is arranged on one side of the bag body. The bottom film 3, the first side bag film 1 and the second side bag film 2 are matched together. A zipper 4 is arranged on the other side of the bag body.

[0025] As attached Figure 2 As shown in , the first side bag sheet 1 includes an OPPZ film 101, a PAP 103 and a CPP film 102, and the CPP film 102 and the OPPZ film 101 are arranged on both sides of the PAP 103;

[0026] As attached Figure 3 As shown in , the second side bag sheet 2 includes an OPPZ film 101, a PET film 104 and a CPP film 102, and the CPP film 102 and the OPPZ film 101 are arranged on both sides of the PET film 104;

[0027] As attached Figure 4 As shown in , the bottom film 3 includes an OPPZ film 101, a PET film 104 and a CPP film 102, and the CPP film 102 and the OPPZ film 101 are arranged on both sides of the PET film 104;

[0028] The OPP film on the bottom film 3 is bonded together with the CPP film 102 on the first side bag film 1 and the CPP film 102 on the second side bag film 2; the CPP film 102 on the first side bag film 1 and the CPP film 102 on the second side bag film 2 are bonded together.

[0029] In this kind of self-supporting bag, the first side bag sheet 1 is compounded by OPPZ film 101 (matt polypropylene film), PAP103 (white kraft paper) and CPP film 102 (unstretched polypropylene film), the second side bag sheet 2 is compounded by OPPZ film 101, PET film 104 (polyester film) and CPP film 102, and the bottom film 3 is also compounded by OPPZ film 101, PET film 104 and CPP film 102, so the whole self-supporting bag does not contain any aluminum foil, which is convenient for the subsequent recycling and granulation of the whole self-supporting bag. At the same time, in this kind of self-supporting bag, PAP103 is used in the first side bag sheet 1 to replace the aluminum foil, and PET film is used in the second side bag sheet 2 and the bottom film 3 to replace the aluminum foil, so that the whole self-supporting bag can be ensured to have good stiffness without producing iridescence.

[0030] At the same time, in this kind of self-supporting bag, all the film sheets in the second side bag sheet are transparent, so the second side bag sheet is transparent, so that the content in the self-supporting bag can be displayed on one side.

[0031] In summary, this kind of self-supporting bag does not contain aluminum foil, will not produce iridescence when used, and can be recycled and reused.

[0032] As attached Figure 1 ~Attached Figure 4 As shown, the thickness of the OPPZ film 101 in the first side bag sheet 1 is 19 um, the thickness of the PAP 103 is 80 um, and the thickness of the CPP film 102 is 35 um.

[0033] As attached Figure 1 ~Attached Figure 4 As shown, the thickness of the OPPZ film 101 in the second side bag sheet 2 is 19 um, the thickness of the PET film 104 is 12 um, and the thickness of the CPP film 102 is 60 um.

[0034] As attached Figure 1 ~Attached Figure 4 As shown, the thickness of the OPPZ film 101 in the bottom film 3 is 19 um, the thickness of the PET film 104 is 12 um, and the thickness of the CPP film 102 is 60 um.

[0035] As attached Figure 1 ~Attached Figure 4 As shown, the bottom film 3 is located at the bottom of the bag body, and the zipper 4 is located at the bag opening of the bag body.

[0036] Specifically, the zipper 4 used in this kind of self-supporting bag is a zipper 4 made of plastic material.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A zipper stand-up bag, comprising a bottom sheet, a first side bag sheet and a second side bag sheet, wherein the first side bag sheet and the second side bag sheet are matched at their convenient positions to form a tubular bag body, wherein the bottom sheet is arranged on one side of the bag body, and the bottom sheet, the first side bag sheet and the second side bag sheet are matched together, and a zipper is arranged on the other side of the bag body, wherein: The first side bag sheet includes an OPPZ film, a PAP film and a CPP film, wherein the CPP film and the OPPZ film are arranged on both sides of the PAP; The second side bag sheet includes an OPPZ film, a PET film and a CPP film, wherein the CPP film and the OPPZ film are arranged on both sides of the PET film; The bottom film includes an OPPZ film, a PET film and a CPP film, and the CPP film and the OPPZ film are arranged on both sides of the PET film; The OPP film on the bottom film is bonded together with the CPP film on the first side bag sheet and the CPP film on the second side bag sheet; the CPP film on the first side bag sheet and the CPP film on the second side bag sheet are bonded together.

2. The zipper stand-up bag according to claim 1, characterized in that: The thickness of the OPPZ film in the first side bag sheet is 19 um, the thickness of the PAP film is 80 um, and the thickness of the CPP film is 35 um.

3. The zipper stand-up bag according to claim 1, characterized in that: The thickness of the OPPZ film in the second side bag sheet is 19 um, the thickness of the PET film is 12 um, and the thickness of the CPP film is 60 um.

4. The zipper stand-up bag according to claim 1, characterized in that: The thickness of the OPPZ film in the bottom film is 19 um, the thickness of the PET film is 12 um, and the thickness of the CPP film is 60 um.

5. The zipper stand-up bag according to claim 1, characterized in that: The bottom film is located at the bag bottom of the bag body, and the zipper is located at the bag opening of the bag body.

Citation Information

Patent Citations

  • High-temperature cooked packaging film with linear easy tear resistance and packaging bag

    CN201998496U

  • Stand-up bag

    CN306009982S