Large-capacity heat preservation packaging paper bag structure
By designing a three-layer insulated paper bag, the problems of paper bags being easily damaged, insufficient insulation, and limited capacity were solved, achieving greater capacity, improved insulation, and enhanced durability.
Patent Information
- Application Number
- CN202422971638.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing paper bags are thin and easily damage fragile items, lack insulation, have limited capacity, are prone to tearing at creases, and are rarely used.
Design a large-capacity insulated packaging paper bag with a three-layer structure (two inner and two outer layers of kraft paper and a hollow honeycomb paper in the middle). The bottom and sides of the bag are pressed with indentations and sprayed with adhesive strips. The bottom is provided with a chamfered notch to form a three-dimensional cavity.
It improves the capacity and insulation performance of paper bags, enhances protection for fragile items, extends service life, and reduces heat loss.
Smart Images
Figure CN223721572U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to packing paper bag structure design technical field, specifically for a large capacity heat preservation packing paper bag structure. BACKGROUND
[0002] With the development of society, people pay more and more attention to environmental protection, in the packaging field, paper bag because it is more friendly to the environment, in the field of packaging is applied more and more widely.
[0003] But paper bag also has certain defects, in actual use, the existing product cannot satisfy the use need, its specific insufficiently as follows:
[0004] 1. Because the thickness of paper bag is thin, mostly single layer structure, when packaging some fragile goods, when collision occurs, easy to cause the damage of goods;
[0005] 2. When packaging some food, because food often needs to maintain a certain temperature, and the existing paper bag does not have the function of heat preservation, is not conducive to the transportation of food goods;
[0006] 3. The existing packing paper bag is often designed simply, so that its capacity is limited, cannot satisfy the use needs of wide;
[0007] 4. The existing paper bag often uses less, its main reason is that the crease of paper bag is easy to break. INVENTION CONTENTS
[0008] The utility model aims at providing a large capacity heat preservation packing paper bag structure to solve the problems in the above background.
[0009] In order to realize the above object, the utility model provides the following technical scheme: a large capacity heat preservation packing paper bag structure, comprising: paper bag body and bag body bottom sheet, the paper bag body is the bag body that two pieces of paper bag piece left and right sides are bonded, and the upper and lower ends of paper bag body are open, the paper bag piece of one side of paper bag body upper end has the elongated piece for sealing, and the lower end of paper bag body is respectively opened out chamfered notch on both sides, the bag body bottom sheet is square paper sheet, and chamfered notch is respectively opened out on the four corners of bag body bottom sheet, and the chamfered notch of bag body bottom sheet is matched with the chamfered notch of paper bag body, and the upper and lower sides of bag body bottom sheet are bonded respectively in the lower end of two pieces of paper bag piece of paper bag body, and the bag body bottom sheet seals the opening of the lower end of paper bag body.
[0010] Further, the paper bag piece includes inner and outer two layers of kraft paper and the honeycomb paper of hollow structure arranged between the two layers of kraft paper.
[0011] Further, vertical direction indentations are pressed on both sides of the paper bag piece, vertical direction indentations are pressed on both sides of the bag body bottom piece in correspondence, and horizontal direction indentations are pressed on the middle position of the bag body bottom piece.
[0012] Further, a colloid strip is sprayed and adhered on the indentation of the paper bag piece and the bag body bottom piece.
[0013] Compared with the prior art, the paper bag structure has the advantages that:
[0014] 1. The large-capacity heat preservation packaging paper bag structure has the advantages that: the paper bag body is opened with chamfered notches on the bottom, and chamfered notches are also opened on the four corners of the bag body bottom piece, so that the paper bag can be opened and expanded to form a three-dimensional cavity, thereby obtaining a large capacity.
[0015] 2. The large-capacity heat preservation packaging paper bag structure has the advantages that: the paper bag piece is arranged in a three-layer structure, the inner and outer two layers of kraft paper cover the hollow structure honeycomb paper in the middle position, the hollow structure of the honeycomb paper can form an air layer, thereby reducing the heat speed; in addition, the hollow structure can play a buffering role when the articles collide, thereby protecting the articles.
[0016] 3. The large-capacity heat preservation packaging paper bag structure has the advantages that: indentations are pressed on the corresponding positions of the paper bag piece and the bag body bottom piece, thereby facilitating the opening of the paper bag body, and allowing the paper bag body to form a required three-dimensional shape.
[0017] 4. The large-capacity heat preservation packaging paper bag structure has the advantages that: a colloid strip is sprayed on the indentation of the paper bag piece and the bag body bottom piece, so that the indentation is not easy to wear and tear, thereby prolonging the service life of the bag body.
[0018] The paper bag structure has the advantages of simple structure, convenient use, good use effect, and the like. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structure schematic view of the utility model;
[0020] Figure 2 is a whole structure schematic view of the utility model;
[0021] Figure 3 is a cross section structure schematic view of the paper bag piece of the utility model;
[0022] In the drawing: 1-paper bag body; 2-bag body bottom piece
[0023] 11-paper bag piece; 12-elongated piece
[0024] 21-kraft paper; 22-honeycomb paper;
[0025] 31-colloid strip. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.
[0027] Please refer to Figure 1 、 2 The utility model provides a kind of large capacity heat preservation packaging paper bag structure, comprising: paper bag body 1 and bag body bottom sheet 2, the paper bag body 1 is the bag body formed by the adhesion of two paper bag pieces 11 left and right sides, paper bag body 1 upper and lower ends are open, the paper bag piece 11 of paper bag body 1 upper end side has the elongated piece 12 for sealing, paper bag body 1 lower end two sides are respectively opened out chamfered gap, the bag body bottom sheet 2 is square paper sheet, the chamfered gap of bag body bottom sheet 2 four corners is respectively opened out, bag body bottom sheet 2 and the chamfered gap of paper bag body 1 are matched, bag body bottom sheet 2 upper and lower sides are respectively adhered in the lower end of two paper bag pieces 11 of paper bag body 1, bag body bottom sheet 2 seals paper bag body 1 lower end opening.
[0028] By opening chamfered gap in paper bag body 1 bottom, simultaneously opening chamfered gap in bag body bottom sheet 2 four corners corresponding, so that paper bag can be opened when packaging, form three-dimensional cavity, to obtain larger capacity.
[0029] Further, the paper bag piece 11 two sides are pressed with vertical direction indentation, the bag body bottom sheet 2 two sides are pressed with vertical direction indentation corresponding, and bag body bottom sheet 2 middle position is pressed with horizontal direction indentation.
[0030] By pressing indentation in paper bag piece 11 and bag body bottom sheet 2 corresponding position, to facilitate paper bag body 1 opening, make paper bag body 1 form the required three-dimensional shape.
[0031] Further, the paper bag piece 11 and bag body bottom sheet 2 indentation are sprayed with colloidal strip 31.
[0032] By spraying colloidal strip 31 in paper bag piece 11 and bag body bottom sheet 2 indentation, so that indentation is not easy to wear, improve the service life of bag body.
[0033] As Figure 3 Indicated, the paper bag piece 11 includes inner and outer two layers of kraft paper 21 and the honeycomb paper 22 of hollow structure arranged between two layers of kraft paper 21.
[0034] By setting the paper bag piece 11 into a three-layer structure, the middle-position honeycomb paper 22 is covered by the inner and outer two layers of kraft paper 21, the honeycomb structure of the honeycomb paper 22 can form an air layer, thereby reducing the heat speed; in addition, the honeycomb structure can play a buffering role when the articles collide, thereby protecting the articles.
[0035] 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 the 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 bulk thermal packaging paper bag structure, characterized by, The application relates to a paper bag body (1) and a bag body bottom sheet (2), the paper bag body (1) is a bag body formed by bonding two paper bag sheets (11) on the left and right sides, the upper and lower ends of the paper bag body (1) are open, the paper bag sheet (11) on one side of the upper end of the paper bag body (1) is provided with an elongated sheet (12) for sealing, the lower end of the paper bag body (1) is provided with chamfered notches on the left and right sides, the bag body bottom sheet (2) is a square paper sheet, chamfered notches are formed in the four corners of the bag body bottom sheet (2), the chamfered notches of the bag body bottom sheet (2) are matched with the chamfered notches of the paper bag body (1), the upper and lower sides of the bag body bottom sheet (2) are bonded to the lower ends of the two paper bag sheets (11) of the paper bag body (1) respectively, the bag body bottom sheet (2) seals the lower end opening of the paper bag body (1), the paper bag sheet (11) comprises inner and outer kraft papers (21) and a honeycomb paper (22) with a hollow structure arranged between the two kraft papers (21). Vertical direction pressing marks are pressed on the left and right sides of the paper bag sheet (11), vertical direction pressing marks are pressed on the left and right sides of the bag body bottom sheet (2), and horizontal direction pressing marks are pressed on the middle position of the bag body bottom sheet (2).
2. A large-capacity heat-retentive packaging paper bag structure according to claim 1, wherein The paper bag sheet (11) and the bag body bottom sheet (2) are sprayed and bonded with a glue strip (31) at the pressing marks.
3. A large-capacity heat-retentive packaging paper bag structure according to claim 1, wherein