Straight-opening packaging bag with opening mark

By setting the backsheet paper, mark-keeping glue layer, adhesive layer, cutting line and release paper in the packaging bag, a straight-mouth packaging bag with open marks was designed, which solved the problem of the inability to determine whether the bag body was unsealed in the prior art, and achieved obvious mark-keeping prompts and improvements in the use effect.

CN223031698UActive Publication Date: 2025-06-27HAI NAN XIN RUI FENG KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202422054610.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-06-27
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

After the existing packaging bag is removed, the user cannot determine whether the bag body has been unpacked, which will affect the use effect.

Method used

A straight-mouth packaging bag with open traces was designed. By setting the negative sheet, mark glue layer, adhesive layer, cutting line and release paper, the sealing bag strip is not stuck on the cover bag strip after being forced to be removed, but is pasted on the bag body. The printed font on the mark glue layer reminds the user that the bag body has been unsealed.

Benefits of technology

After the cover bag strip is removed, obvious traces are reminded to the user to ensure the effect of use, and effectively solve the problem of the inability to determine whether the bag body is unsealed in the prior art.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223031698U_ABST
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Abstract

The utility model discloses a straight mouth packaging bag with opening marks, which comprises a bag body and a sealing cover bag strip on the upper edge side of the bag body, a mark-remaining adhesive tape is arranged on one side face of the sealing cover bag strip, and the mark-remaining adhesive tape comprises release paper, an adhesive layer, a mark-remaining adhesive layer, negative paper, a paper uncovering sheet and a cutting line. Through the negative paper, the mark-remaining glue layer, the sticking glue layer, the cutting line and the release paper, after the packaging belt is sealed, the sealing cover bag strip is firmly stuck on the bag body through the sticking glue layer, and after the sealing cover bag strip is forcibly detached by a person, the mark-remaining glue layer is stuck on the paper layer of the bag body due to the stickiness, so that the sealing cover bag strip is firmly stuck on the bag body through the sticking glue layer. The adhesive layer is also completely adhered to the paper layer of the bag body, so that the mark-remaining adhesive layer and the adhesive layer cannot be adhered to the sealing cover bag strip, meanwhile, printed characters on the mark-remaining adhesive layer can remind a user that the bag body is opened, and the using effect is met.
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Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a straight-mouth packaging bag which leaves marks when opened. Background Art

[0002] In daily life or office work, some sealable bags are needed to hold items, and the bags are sealed with self-sealing adhesive strips to prevent other people from opening the bags to peek at the items in the bags.

[0003] When the existing packaging tape is used, after the bag is opened by other personnel, the user cannot know that the bag has been opened, which affects the use effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a straight-mouth packaging bag with an opening mark. By providing the base paper, the mark-leaving adhesive layer, the adhesive adhesive layer, the cutting line and the release paper, after the packaging strip is sealed, the sealing bag strip is firmly adhered to the bag body through the adhesive adhesive layer. After someone forcibly removes the sealing bag strip, the mark-leaving adhesive layer adheres to the paper layer of the bag body due to its stickiness, and the adhesive adhesive layer is also completely adhered to the paper layer of the bag body, so that the mark-leaving adhesive layer and the adhesive adhesive layer cannot adhere to the sealing bag strip. At the same time, the printed fonts on the mark-leaving adhesive layer can remind the user that the bag has been unsealed, which meets the use effect and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a straight-mouth packaging bag that leaves a mark when opened, comprising a bag body and a sealing bag strip on the upper side of the bag body, a marking adhesive strip is arranged on one side of the sealing bag strip, and the marking adhesive strip comprises: release paper, an adhesive layer, a marking adhesive layer, a negative paper, a peeling piece and a cutting line.

[0006] Furthermore, the adhesive layer is glued to the cover bag strip, and the release paper and the peeling paper are cut and formed as a whole.

[0007] Furthermore, the cutting line is arranged at the contact edge position between the mark-leaving adhesive layer and the adhesive adhesive layer, and the negative paper is glued to the mark-leaving adhesive layer.

[0008] Furthermore, the bag body is heat-sealed and glued, and the release paper is glued to the adhesive layer.

[0009] Furthermore, fonts are printed in the trace adhesive layer, and the negative paper is glued to the sealing bag strip.

[0010] Furthermore, the release paper covers the adhesive layer.

[0011] Through the arranged base paper, trace-retaining adhesive layer, pasting adhesive layer, cutting line and release paper, after the packaging tape is sealed, the cover strip is firmly pasted on the bag body through the pasting adhesive layer. After someone forcibly disassembles the position of the cover strip, the trace-retaining adhesive layer is adhered to the paper layer of the bag body due to adhesiveness, and the pasting adhesive layer is also completely adhered to the paper layer of the bag body, so that the trace-retaining adhesive layer and the pasting adhesive layer cannot be adhered to the cover strip. At the same time, the printed characters on the trace-retaining adhesive layer can remind the user that the bag body has been unsealed, meeting the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural view of the present utility model;

[0013] Figure 2 is a front schematic structural view of the present utility model;

[0014] Figure 3 For the present utility model Figure 1 is an exploded schematic structural view of the trace-retaining adhesive strip;

[0015] Figure 4 For the present utility model Figure 3 is an enlarged schematic structural view of part A in the present utility model.

[0016] In the figure: 1. Bag body; 2. Cover strip; 3. Trace-retaining adhesive strip; 301. Release paper; 302. Pasting adhesive layer; 303. Trace-retaining adhesive layer; 304. Base paper; 305. Lifting paper; 306. Cutting line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Please refer to Figures 1-4 , a straight-mouth packaging bag with trace-retaining opening, including a bag body 1 and a cover strip 2 on the upper side of the bag body 1. A trace-retaining adhesive strip 3 is arranged on one side of the cover strip 2. The trace-retaining adhesive strip 3 includes: release paper 301, pasting adhesive layer 302, trace-retaining adhesive layer 303, base paper 304, lifting paper 305 and cutting line 306.

[0018] As Figures 1-4As shown in the figure, when using the bag body 1, the release paper 301 is removed by peeling off the paper piece 305, and then the capping bag strip 2 is pasted on the bag body 1. The adhesive layer 302 and the trace-retaining adhesive layer 303 can be firmly pasted on the paper layer of the bag body 1. When someone disassembles and removes the capping bag strip 2, due to the cutting line 306 between the trace-retaining adhesive layer 303 and the adhesive layer 302, the trace-retaining adhesive layer 303 can be separated from the base film paper 304 and firmly pasted on the bag body 1, and the adhesive layer 302 can also be pasted on the bag body 1. When the capping bag strip 2 is forcibly removed, the adhesive layer 302 and the trace-retaining adhesive layer 303 can remain on the bag body 1, so that the capping bag strip 2 cannot be pasted on the bag body 1 again. The adhesive layer 302 and the trace-retaining adhesive layer 303 can be coated with a color layer, so that when the adhesive layer 302 and the trace-retaining adhesive layer 303 are pasted on the bag body 1, the color remains on the bag body 1. The color remaining on the bag body 1, the printed font on the adhesive layer 302 and the trace-retaining adhesive layer 303 can remind the user that the bag has been unsealed.

[0019] The adhesive layer 302 is heat-sealed and bonded to the capping bag strip 2. The release paper 301 and the peeling paper piece 305 are integrally cut. The setting of the peeling paper piece 305 facilitates the user to remove the release paper 301.

[0020] The cutting line 306 is set at the contact edge position between the trace-retaining adhesive layer 303 and the adhesive layer 302. The base film paper 304 is adhesively bonded to the trace-retaining adhesive layer 303. The cutting line 306 facilitates the trace-retaining adhesive layer 303 to be separated from the adhesive layer 302 and pasted on the paper layer of the bag body 1, so that the printed font on the trace-retaining adhesive layer 303 can remind the user that the bag has been unsealed.

[0021] The bag body 1 is heat-sealed and bonded. The release paper 301 is adhesively bonded to the adhesive layer 302.

[0022] The trace-retaining adhesive layer 303 is printed with font. The base film paper 304 is heat-sealed and bonded to the capping bag strip 2.

[0023] The release paper 301 is arranged to cover the adhesive layer 302.

[0024] When the bag body 1 is used, the release paper 301 is peeled off by peeling off the paper sheet 305, and then the cover bag strip 2 is pasted on the bag body 1, and the adhesive layer 302 and the trace adhesive layer 303 can be firmly pasted on the paper layer of the bag body 1. If someone disassembles and peels off the cover bag strip 2, the trace adhesive layer 303 can be separated from the base paper 304 and firmly pasted on the bag body 1 because of the cutting line 306 between the trace adhesive layer 303 and the adhesive layer 302, and the adhesive layer 302 can also be pasted on the bag body. 1, when the covering bag strip 2 is forcibly peeled off, the adhesive layer 302 and the trace adhesive layer 303 can remain on the bag body 1, so that the covering bag strip 2 can no longer be pasted on the bag body 1, and the trace adhesive layer 303 and the adhesive layer 302 can be coated with a color layer, so that when the adhesive layer 302 and the trace adhesive layer 303 are pasted on the bag body 1, the color left on the bag body 1, the adhesive layer 302 and the printed fonts on the trace adhesive layer 303 can remind the user that the bag has been unsealed.

Claims

1. A straight-mouth packaging bag with a trace left when opened, comprising a bag body (1) and a sealing bag strip (2) on the upper side of the bag body (1), characterized in that: A trace adhesive strip (3) is arranged on one side of the sealing bag strip (2), and the trace adhesive strip (3) comprises: a release paper (301), an adhesive layer (302), a trace adhesive layer (303), a base paper (304), a peeling paper (305) and a cutting line (306).

2. The straight-mouth packaging bag with a trace left after opening according to claim 1, characterized in that: The adhesive layer (302) is heat-sealed and bonded to the cover bag strip (2), and the release paper (301) and the peeling paper sheet (305) are cut and formed as a whole.

3. The straight-mouth packaging bag with a trace left after opening according to claim 1, characterized in that: The cutting line (306) is arranged at the contact edge position between the trace adhesive layer (303) and the adhesive layer (302), and the negative paper (304) is glued to the trace adhesive layer (303).

4. The straight-mouth packaging bag with opening marks according to claim 1, characterized in that: The bag body (1) is heat-sealed and glued, and the release paper (301) is glued to the adhesive layer (302).

5. The straight-mouth packaging bag with opening marks according to claim 1, characterized in that: The trace adhesive layer (303) is printed with fonts, and the base paper (304) is heat-sealed and glued to the cover bag strip (2).

6. The straight-mouth packaging bag with opening marks according to claim 1, characterized in that: The release paper (301) is arranged to cover the adhesive layer (302).