Waterproof wrapping paper bag structure with buffering protection function
By designing a sandwich structure and a waterproof layer, the traditional paper bag forming difficulties and waterproofing problems are solved, achieving cushioning protection and waterproofing effects, making it suitable for mechanized paper bag production.
Patent Information
- Application Number
- CN202422971645.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Traditional paper bags have a complex structure, are difficult to form, are costly, and lack waterproofing. During transportation in rainy weather, moisture can easily penetrate and affect the packaging effect.
The paper bag features a sandwich structure with an inner folded support layer and a waterproof layer. A waterproof coating is sprayed on both the inside and outside of the paper bag body. Combined with the staggered square protrusions of the folded support layer, it provides cushioning and waterproofing.
It achieves simple and easy-to-process cushioning protection, preventing damage from collisions and moisture intrusion, and improving the packaging effect of paper bags, especially in rainy weather.
Smart Images
Figure CN223575057U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to paper bag structure design technical field, concretely is waterproof wrapping paper bag structure with buffer protection. BACKGROUND
[0002] Paper bag is made of environmental protection material, because its main component is paper, so can carry out regeneration, recycling, and will not pollute the environment. In order to reduce the collision damage of packing goods in the transportation process, usually inserts the inner liner of buffering action in paper bag. The inner liner of the wrapping paper bag of traditional structure usually needs to be processed into the relatively complex three-dimensional shape, such as honeycomb shape, triangular pyramid, etc., and the forming mode is complex, the manufacturing difficulty is big, and the manufacturing cost is high;In addition, the paper bag itself does not have waterproof function, and water vapor can easily enter the paper bag when transporting in rainy weather, and the packaging effect of the paper bag is poor. UTILITY MODEL CONTENTS
[0003] The utility model aims at providing a waterproof wrapping paper bag structure with buffer protection to solve the problems in the above background.
[0004] To achieve the above object, the utility model provides the following technical scheme: a waterproof wrapping paper bag structure with buffer protection, including paper bag body, the paper bag body is the bag body with the cavity, and the paper in the paper bag body is the sandwich structure, and the inner liner is arranged in the sandwich, the inner liner includes folding support layer, waterproof layer, adhesive layer, the folding support layer both sides are staggered with square protrusions, the waterproof layer is bonded on the inside and outside of folding support layer through colloid, the adhesive layer is adhesive colloid, and the adhesive layer is sprayed on the protrusion of square protrusion both sides of folding support layer, and the adhesive layer is adhered in the sandwich inside the paper bag body.
[0005] Further, the upper and lower ends of the paper bag body are both open, and the upper and lower ends of the paper bag body are both provided with sealing pieces for closing, the inner side of the sealing piece is bonded to the outside of the paper bag body by a rubber strip, so as to close the opening of the paper bag body.
[0006] Further, the paper bag body is pressed with inwardly recessed grooves on the left and right sides, which are expanded when loading objects.
[0007] Further, the paper bag body includes two layers of kraft paper, and the surface of the kraft paper is sprayed with a waterproof coating, and the inner liner is arranged between the two layers of kraft paper.
[0008] Further, the folding support layer is made of a whole kraft paper, and the waterproof layer is adhered after spraying glue on both sides of the folding support layer, and then integrally pressed and formed.
[0009] Further, the square protrusions on both sides of the folding support layer are rectangular or trapezoidal.
[0010] Compared with the prior art, the envelope paper bag has the advantages that:
[0011] 1. By setting the paper bag body into a sandwich structure, and setting an inner liner in the sandwich, the folding support layer in the inner liner structure has staggered square protrusions on both sides, the folding support layer can form a buffer and shock absorption outside the storage cavity, reducing the collision damage of the articles placed in the storage cavity; in addition, the square protrusions form a closed cavity, which can play a heat preservation role;
[0012] 2. By setting a waterproof layer on both sides of the folding support layer, the storage cavity can be waterproofed, avoiding water vapor from entering the storage cavity during transportation in rainy weather, causing damage to the articles, and further improving the packaging effect of the envelope paper bag; at the same time, the waterproof coating is sprayed on the inner and outer kraft paper of the paper bag body, overcoming the defects of kraft paper, and further improving the waterproof effect;
[0013] 3. The folding support layer is made of a whole kraft paper, the waterproof layer is adhered after spraying glue on both sides of the folding support layer, and then is integrally pressed and formed, which is convenient and fast to process, and is suitable for mechanical production and processing.
[0014] The envelope paper bag has the advantages of simple structure, convenient use, good use effect and the like. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a structural schematic view of the envelope paper bag;
[0016] Figure 2 is a vertical cross-sectional structural schematic view of the envelope paper bag;
[0017] Figure 3 is a partial cross-sectional schematic view of the inner liner of the envelope paper bag;
[0018] Figure 4 is a horizontal cross-sectional structural schematic view of the envelope paper bag;
[0019] In the drawings: 1-paper bag body; 2-inner liner; 3-folding support layer; 4-waterproof layer; 5-adhesion layer; 6-sealing piece; 7-kraft paper. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the envelope paper bag will be clearly and completely described below with reference to the drawings in the embodiments of the envelope paper bag. Obviously, the described embodiments are only part of the embodiments of the envelope paper bag, rather than all the embodiments. Based on the embodiments in the envelope paper bag, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the envelope paper bag.
[0021] Please refer to Figure 1 ,2 The utility model provides a waterproof wrapping paper bag structure with buffer protection as shown in 3, the utility model provides a waterproof wrapping paper bag structure with buffer protection, including paper bag body 1, the paper bag body 1 is the bag body with the storage cavity, the paper in paper bag body 1 is the sandwich structure, and is equipped with inner liner 2 in sandwich, the inner liner 2 includes folding support layer 3, waterproof layer 4, adhesive layer 5, the folding support layer 3 both sides staggeredly be equipped with square protrusions, waterproof layer 4 be glued in the inside and outside both sides of folding support layer 3, adhesive layer 5 be adhesive colloid, adhesive layer 5 is sprayed in the protruding place of square protrusion of folding support layer 3 both sides, and adhesive layer 5 sticks together inner liner 2 in the sandwich inside paper bag body 1.
[0022] By setting paper bag body 1 into sandwich structure, and setting inner liner 2 in sandwich, the folding support layer 3 both sides in the structure of inner liner 2 structure are staggered square protrusions, and folding support layer 3 can form the buffer and shock attenuation outside storage cavity, reduce the collision damage of the article placed in storage cavity;
[0023] By setting waterproof layer in folding support layer both sides, can form waterproof protection to storage cavity, avoid the water vapor invasion in storage cavity when transportation in rainy weather, cause article damage, further improve the packing effect of envelope paper bag;
[0024] The upper and lower ends of paper bag body 1 are both open, and the upper and lower ends of paper bag body 1 are both provided with sealing pieces 6 for closing, the inner side of sealing piece 6 is bonded to the outside of paper bag body 1 by adhesive tape, so as to close the opening of paper bag body 1.
[0025] As shown in Figure 4 The left and right sides of paper bag body 1 are pressed with inward recessed grooves, which are expanded when loading articles.
[0026] The left and right sides of paper bag body 1 are pressed with inward recessed grooves, which are expanded when loading articles, facilitating the loading of large-volume articles.
[0027] The paper bag body 1 comprises two layers of kraft paper 7, and the surface of the kraft paper 7 is sprayed with a waterproof coating, and the inner liner 2 is arranged between the two layers of kraft paper 7.
[0028] The folding support layer 3 is made of an entire kraft paper, and the folding support layer 3 is integrally pressed and formed after the folding support layer 3 is sprayed with glue on both sides and the waterproof layer 4 is adhered to the folding support layer 3, respectively.
[0029] The waterproof coating is sprayed on the inner and outer kraft paper 7 of the paper bag body 1, which overcomes the defects of kraft paper and further improves the waterproof effect.
[0030] The folding support layer 3 is made of an entire kraft paper, and the folding support layer 3 is integrally pressed and formed after the folding support layer 3 is sprayed with glue on both sides and the waterproof layer 4 is adhered to the folding support layer 3, respectively.
[0031] The square protrusions on both sides of the folding support layer 3 are rectangular or trapezoidal.
[0032] The square protrusions form closed cavities, which can play a heat preservation role.
[0033] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A waterproof paper bag structure with cushioning protection, comprising a paper bag body (1), wherein the paper bag body (1) is a bag body with a storage cavity, characterized in that, The paper in the paper bag body (1) has a sandwich structure, and the sandwich is provided with an inner lining (2). The inner lining (2) includes a folding support layer (3), a waterproof layer (4), and an adhesive layer (5). The folding support layer (3) has square protrusions on both sides. The waterproof layer (4) is bonded to the inner and outer sides of the folding support layer (3) by an adhesive. The adhesive layer (5) is an adhesive. The adhesive layer (5) is sprayed on the protrusions of the square protrusions on both sides of the folding support layer (3). The adhesive layer (5) bonds the inner lining (2) to the sandwich of the paper bag body (1).
2. The waterproof paper bag structure with cushioning protection according to claim 1, characterized in that, The paper bag body (1) has openings at both the top and bottom. Both the top and bottom of the paper bag body (1) are provided with sealing pieces (6) for sealing. The inner side of the sealing piece (6) is bonded to the outside of the paper bag body (1) by adhesive strips, thereby sealing the opening of the paper bag body (1).
3. The waterproof paper bag structure with cushioning protection according to claim 1, characterized in that, The paper bag body (1) has inwardly recessed grooves pressed on both sides, which expand when loading objects.
4. The waterproof paper bag structure with cushioning protection according to claim 1, characterized in that, The paper bag body (1) comprises two layers of kraft paper (7), and the surface of the kraft paper (7) is coated with a waterproof coating. The inner lining (2) is placed between the two layers of kraft paper (7).
5. The waterproof paper bag structure with cushioning protection according to claim 1, characterized in that, The folded support layer (3) is made of a whole sheet of kraft paper. After the folded support layer (3) is sprayed with glue on both sides, the waterproof layer (4) is attached to it and then pressed into shape as a whole.
6. The waterproof paper bag structure with cushioning protection according to claim 1, characterized in that, The square protrusions on both sides of the folded support layer (3) are rectangular or trapezoidal.