A middle-in-middle sealing structure for wet wipe packaging bags

Abstract

The present invention discloses a middle-in-middle sticker sealing structure for a wet wipe packaging bag, belonging to the technical field of packaging bags. It includes a packaging bag body. An opening for taking out the wipes is provided on the top surface of the packaging bag body. A lid for sealing the opening is movably installed on one side of the opening. The side of the lid close to the opening is an adhesive surface. A convex lid fitted with the opening is installed on the adhesive surface. An inner ring glue is installed on the adhesive surface of the outer circle of the convex lid, and a blank area is left on the adhesive surface of the outer part of the inner ring glue; an outer ring glue corresponding to the blank area is installed on the top surface of the packaging bag body. A self-retaining opening corresponding to the inner ring glue is provided on the outer ring glue. A part of the packaging bag body is exposed inside the inner circle of the self-retaining opening and is the bonding surface bonded to the inner ring glue. A blank area is provided on the lid outside the inner ring glue. When in use, the finger contacts the blank area and will not get sticky, and thus has no influence on the adhesiveness of the adhesive.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging bags, and more specifically, to a middle-in-middle sticker sealing structure for a wet wipe packaging bag. Background Art

[0002] Wet wipes are disposable sanitary products, and wet wipe packaging bags are used to store and package wet wipes. Most of them are made of plastic materials. Due to the special use of wet wipes, the cleanliness and sealing performance of wet wipe packaging bags need to be ensured.

[0003] An opening for taking out the paper is provided on the wet wipe packaging belt. In the prior art, the sealing structures for the opening are roughly divided into two types. The first type: a lid is installed at the edge of the paper-taking opening, and an adhesive tape is pasted on the bonding surface of the lid. During each use, the finger will repeatedly contact the adhesive tape on the lid, resulting in a decrease in the stickiness of the adhesive tape. The second type, for example, a wet tissue packaging bag with the publication number CN215045168U, installs a bottom cover at the opening, and a top cover is installed on the bottom cover. The top cover and the bottom cover cooperate with each other to fasten and seal the opening. Although this structure has a good sealing effect, most of the top cover and the bottom cover are made of hard plastic, which is difficult to form an integral body with the packaging bag, affecting the overall aesthetics, and the manufacturing cost is relatively high. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a middle-in-middle sticker sealing structure for a wet wipe packaging bag that is non-sticky, low in manufacturing cost and beautiful.

[0005] To solve the above problems, the present invention adopts the following technical solutions: A middle-in-middle sticker sealing structure for a wet wipe packaging bag, including a packaging bag body. An opening for taking out the paper is provided on the top surface of the packaging bag body. A lid for sealing the opening is movably installed on one side of the opening. The side of the lid close to the opening is a bonding surface. A convex cover fitted with the opening is installed on the bonding surface. An inner ring adhesive is installed on the bonding surface of the outer circle of the convex cover, and a blank area is left on the bonding surface of the outer circle part of the inner ring adhesive. An outer ring adhesive corresponding to the blank area is installed on the top surface of the packaging bag body. A self-retaining opening corresponding to the inner ring adhesive is provided on the outer ring adhesive. A part of the packaging bag body is exposed inside the inner circle of the self-retaining opening and is the bonding surface bonded to the inner ring adhesive.

[0006] Preferably, there is an overlapping part between the bottom of the lid and the packaging bag body, and the edge end of the overlapping part close to the opening is a crease line. The outer edge of the bottom of the convex cover abuts against the crease line.

[0007] Preferably, one end of the lid far from the crease line extends outward to form a lifting end, and the lifting end is not bonded to the outer ring adhesive.

[0008] Preferably, one end of the inner ring rubber away from the crease line extends outward to form an arc-shaped protrusion, and one end of the self-retained opening away from the crease line extends outward to form an arc-shaped notch corresponding to the protrusion.

[0009] Preferably, the opening, the convex cover and the inner ring rubber are all circular.

[0010] Preferably, both the inner ring adhesive and the outer ring adhesive are made of self-adhesive adhesive.

[0011] Preferably, after the cover is peeled off and bonded, the cover completely covers the outer edge of the outer ring rubber.

[0012] Preferably, the lid is made of the same material as the packaging bag body.

[0013] Beneficial effects of the present invention:

[0014] (1) A blank area is provided on the cover outside the inner circle of adhesive. When in use, fingers can touch the blank area without getting your hands dirty, and the adhesiveness of the adhesive is not affected.

[0015] (2) After the cover is peeled off and glued, the convex cover is embedded and sealed on the opening, the inner circle glue is glued to the bonding surface, and the outer circle glue is glued to the blank area on the peeled cover. The double bonding does not affect each other and has a good sealing effect.

[0016] (3) The crease line is located at the outer edge of the convex cover, which shortens the bonding stroke and can effectively prevent the misalignment between the convex cover and the opening, the inner ring glue and the self-retained opening, and the outer ring glue and the blank area.

[0017] (4) The arrangement of the arc-shaped raised portion of the inner ring adhesive and the arc-shaped notch of the self-retained opening allows the raised portion to separate from the notch first when the cover is lifted, thereby providing a breakthrough and driving force, thereby effectively preventing damage to the adhesive.

[0018] (5) The sealing part of the present invention is mainly composed of a lift-off cover, a convex cover, an inner ring rubber and an outer ring rubber, and has a simple structure and a low manufacturing cost.

[0019] (6) After the cover is glued, the convex cover is embedded in the opening, and because the inner and outer ring glues are relatively thin, the cover is integrated with the packaging bag body after gluing, without any abrupt feeling, and more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention after the cover is lifted up;

[0022] Figure 3 It is a partial cross-sectional view after the cover is opened and bonded according to the present invention.

[0023] Description of the numbers in the figure:

[0024] 1. Packaging bag body; 2. Opening; 3. Cover to be lifted; 31. Blank area; 32. Lifting end; 4. Convex cover; 5. Inner ring adhesive; 51. Protruding part; 6. Outer ring adhesive; 7. Self-retaining opening; 71. Bonding surface; 72. Notch; 8. Crease line. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] As Figures 1-3 shown, a middle-in-middle sticker sealing structure for a wet wipe packaging bag includes a packaging bag body 1. An opening 2 for taking out the wipes is provided on the top surface of the packaging bag body 1. A cover to be lifted 3 for sealing the opening 2 is movably installed on one side of the opening 2. The side of the cover to be lifted 3 close to the opening 2 is an adhesive surface. A convex cover 4 fitted with the opening 2 is installed on the adhesive surface. An inner ring adhesive 5 is installed on the adhesive surface of the outer circle of the convex cover 4, and a blank area 31 is left on the adhesive surface of the outer part of the inner ring adhesive 5. Here, the blank area 31 refers to the part of the adhesive surface without the inner ring adhesive 5. An outer ring adhesive 6 corresponding to the blank area 31 is installed on the top surface of the packaging bag body 1. A self-retaining opening 7 corresponding to the inner ring adhesive 5 is provided on the outer ring adhesive 6. A part of the packaging bag body 1 is exposed inside the inner circle of the self-retaining opening 7 and is the bonding surface 71 bonded to the inner ring adhesive 5. The opening 2, the convex cover 4, and the inner ring adhesive 5 are all circular. Of course, they can also be oval, triangular, etc. Both the inner ring adhesive 5 and the outer ring adhesive 6 use non-drying adhesives, which can ensure the ability of the cover to be lifted 3 to be repeatedly bonded to the packaging bag body 1. After the cover to be lifted 3 is bonded, the cover to be lifted 3 completely covers the outer edge of the outer ring adhesive 6. Here, only the area of the cover to be lifted 3 needs to be designed to be larger than the sum of the areas of the outer ring adhesive 6 and the self-retaining hole. Refer to Figure 3 , when the cover to be lifted 3 is bonded to seal the opening 2, the convex cover 4 is embedded in the opening 2 for the first seal. The inner ring adhesive 5 is bonded to the bonding surface 71 inside the inner circle of the self-retaining opening 7 for the second seal. The outer ring adhesive 6 is bonded to the blank area 31 of the adhesive surface for the third seal. After the cover to be lifted 3 is bonded, its whole is almost flat and integrated with the packaging bag body 1, without affecting the overall aesthetics. And the three-seal structure can ensure good sealing performance, prevent the moisture in the wet wipes from evaporating, and at the same time, the two adhesions also have good fixing effects. When in use, the finger contacts the blank area 31 on the cover to be lifted 3, which will not affect the overall adhesiveness.

[0027] The cover 3 is made of the same material as the packaging bag body 1, such as: PET and PE, or OPP and PE, etc. Since the cover 3 and the packaging bag need to have a fixed surface, there is an overlapping part where the bottom of the cover 3 is fixed to the packaging bag body 1, and they are bonded together with glue or heat treatment. Of course, the cover 3 can also be integrally provided with the packaging bag. The edge of the overlapping part close to the opening 2 is the crease line 8. Here, the crease line 8 is the folding line for the cover 3 to flip, and the outer edge of the bottom of the convex cover 4 abuts on the crease line 8. When the cover 3 is flipped down and fitted, it flips with the bottom of the convex cover 4 as the center point. In this way, the convex cover 4 can better fit with the opening 2, and effectively prevent the misalignment of the convex cover 4 and the opening 2, the inner ring glue 5 and the self-retaining hole, etc. caused by excessive force.

[0028] One end of the cover 3 away from the crease line 8 extends outward to form a lifting end 32, and the lifting end 32 is not bonded to the outer ring glue 6. One end of the inner ring glue 5 away from the crease line 8 extends outward to form an arc-shaped convex part 51, and one end of the self-retaining opening 7 away from the crease line 8 extends outward to form an arc-shaped notch 72 corresponding to the convex part. When lifting the cover 3, the lifting end 32 can be pinched and lifted upward. During the lifting process, the convex part 51 serves as the breakthrough point for lifting. The convex part 51 is first separated from the notch 72, and then drives the lifting of the entire inner ring glue 5. Even if the cover 3 is lifted quickly, there is no impact.

[0029] The above is only the preferred specific implementation manner of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A middle-patch sealing structure for a wet wipe packaging bag, comprising a packaging bag body (1). An opening (2) for taking out wipes is provided on the top surface of the packaging bag body (1). A lid (3) for sealing the opening (2) is movably installed on one side of the opening (2). The side of the lid (3) close to the opening (2) is an adhesive surface, and it is characterized in that: A convex cover (4) that fits into the opening (2) is installed on the bonding surface. An inner ring adhesive (5) is installed on the bonding surface of the outer ring of the convex cover (4), and a blank area (31) is left on the bonding surface of the outer ring part of the inner ring adhesive (5); an outer ring adhesive (6) corresponding to the blank area (31) is installed on the top surface of the packaging bag body (1). A self-retaining opening (7) corresponding to the inner ring adhesive (5) is formed in the outer ring adhesive (6). A part of the packaging bag body (1) is exposed inside the inner circle of the self-retaining opening (7), and it is the bonding surface (71) that is bonded to the inner ring adhesive (5).

2. The middle-in-middle sealing structure for a wet wipe packaging bag according to claim 1, characterized in that: There is an overlapping part where the bottom of the cover (3) is fixed to the packaging bag body (1). The edge end of the overlapping part close to the opening (2) is a crease line (8), and the outer edge of the bottom of the convex cover (4) abuts against the crease line (8).

3. A middle-in-middle sealing structure for a wet wipe packaging bag according to claim 2, characterized in that: One end of the cover (3) away from the crease line (8) extends outward to form a lifting end (32), and the lifting end (32) is not bonded to the outer ring adhesive (6).

4. A middle-in-middle sealing structure for a wet wipe packaging bag according to claim 2 or 3, characterized in that: One end of the inner ring adhesive (5) away from the crease line (8) extends outward to form an arc-shaped protruding part (51), and one end of the self-retaining opening (7) away from the crease line (8) extends outward to form an arc-shaped notch (72) corresponding to the protrusion.

5. The middle-in-middle sealing structure for a wet wipe packaging bag according to claim 1, wherein: The opening (2), the convex cover (4), and the inner ring adhesive (5) are all circular.

6. The middle-in-middle sealing structure for a wet wipe packaging bag according to claim 1, characterized in that: Both the inner ring adhesive (5) and the outer ring adhesive (6) use pressure-sensitive adhesives.

7. A middle-in-middle sealing structure for a wet wipe packaging bag according to claim 1, characterized in that: After the cover (3) is bonded, the cover (3) completely covers the outer edge of the outer ring adhesive (6).

8. A middle-in-middle sealing structure for a wet wipe packaging bag according to claim 1, characterized in that: The cover (3) is made of the same material as the packaging bag body (1).

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