Multi-layer laminated printing three-dimensional portable paper bag
Through the application of multi-layer structure and hot pressing technology, the problems of easy damage to the load-bearing of paper bags and easy wear of printed patterns have been solved, and a high-strength and environmentally friendly paper bag design has been achieved, which improves the load-bearing and visual effects.
Patent Information
- Application Number
- CN202422840482.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing paper handbags are easily damaged when bearing weight, easily torn when pulled, and the printed patterns have poor wear resistance, which affects the aesthetic effect.
It adopts a multi-layer structure design, including a waterproof layer, a printing layer, an outer support layer, a woven layer and an inner lining layer, which are bonded by hot pressing technology. The handle is fixed by hot pressing with a fixing block. The handle is woven with cotton and linen rope, and the support plate increases stability.
It improves the carrying capacity of paper bags and the wear resistance of printed patterns, enhances the stability of handles, maintains the aesthetic effect, and has environmental protection and high-strength connections.
Smart Images

Figure CN223328119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of paper bags, in particular to a multi-layer stacked and printed three-dimensional paper handbag. Background Art
[0002] Multi-layer printed three-dimensional paper handbags are a common form of packaging. They are widely used in the packaging of various products due to their environmental protection, beauty and practicality. Paper handbags are not only used as packaging products for daily shopping, but have also gradually evolved into advertising carriers that convey product culture and designer ingenuity.
[0003] However, current paper handbags are not strong enough and are easily damaged when carrying heavy objects. In addition, the handles are generally set in the openings on the front and back of the paper bags, which may tear the paper bags when they are pulled. In addition, the printing directly on the surface of the paper bags has poor wear resistance, which may lead to unsatisfactory display effects after printing. Utility Model Content
[0004] The purpose of the utility model is to provide a multi-layer printed three-dimensional paper handbag to solve the problems of poor load-bearing capacity, easy damage to the paper bag when pulling, and easy wear of the printed pattern.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-layered printed three-dimensional handbag, comprising a paper bag body, wherein the paper bag body is provided with a waterproof layer, a printing layer, an outer support layer, a woven layer and an inner lining layer in sequence from the outside to the inside, the top of the inner wall of the paper bag body is integrally formed with a folded edge, the outer wall of the folded edge is fixedly connected to the inner wall of the paper bag body by an adhesive, and the type of adhesive is hot melt adhesive, the paper bag body and the top of the folded edge are integrally formed by hot pressing and provided with a bag edge seal, and a fixing groove is provided at the top of the bag edge seal corresponding to the front and back of the paper bag body.
[0006] Preferably, a handle is fixedly connected to the inner wall of the fixing groove, and a fixing block is fixedly connected to the outer wall of the handle.
[0007] Preferably, the fixing block is arranged on the surface where the paper bag body and the folded edge are in contact, and is fixed by heat pressing, and the handle is woven from cotton and linen ropes.
[0008] Preferably, a support plate is movably connected to the bottom of the inner wall of the paper bag body, and the shape of the support plate is consistent with the shape of the bottom of the inner cavity of the paper bag body when it is fully expanded.
[0009] Preferably, an adhesive edge is provided on one side of the inner wall of the paper bag body, and the adhesive edge is fixedly connected to the back side of the inner wall of the paper bag body by an adhesive.
[0010] Preferably, the waterproof layer is made of polyethylene film, and is connected to the printing layer by an adhesive and attached to the surface of the paper bag body.
[0011] Preferably, the outer supporting layer is made of white cardboard, the woven layer is made of polyester fiber woven cloth, the inner lining layer is made of white kraft paper, and the printed layer, outer supporting layer, woven layer and inner lining layer are bonded by hot pressing technology.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] The utility model has the advantages that, firstly, the support plate has a supporting function and increases the stability of the paper bag body; the waterproof layer has good waterproofness and wear resistance, and has low cost, and can protect the pattern and text printed on the printing layer to ensure its visual effect; the printing layer, the outer support layer, the woven layer and the inner lining layer are all bonded by hot pressing technology, with a high-strength connection, and have the advantages of good shaping support three-dimensional effect, high strength, good load-bearing effect and green environmental protection; the fixing block is fixed between the paper bag body and the folded edge by hot pressing to make the handle tighter. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A schematic structural diagram of a preferred embodiment of a multi-layer printed three-dimensional paper handbag provided by the present invention;
[0015] Figure 2 A schematic diagram of the cross-sectional structure provided by the utility model;
[0016] Figure 3 A schematic diagram of the layered structure of a paper bag provided by the present invention;
[0017] Figure 4 This is a partially enlarged cross-sectional structural schematic diagram provided by the utility model.
[0018] In the figure: 1. Paper bag body; 101. Waterproof layer; 102. Printing layer; 103. Outer support layer; 104. Woven layer; 105. Lining layer; 2. Folding edge; 3. Bag edge seal; 4. Fixing groove; 5. Handle; 6. Fixing block; 7. Support plate; 8. Adhesive edge. DETAILED DESCRIPTION
[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] See also Figure 1-4As shown, a multi-layer laminated printed three-dimensional handbag includes a paper bag body 1. The paper bag body 1 is provided with a waterproof layer 101, a printing layer 102, an outer supporting layer 103, a woven layer 104 and an inner lining layer 105 from the outside to the inside. The waterproof layer 101 is made of polyethylene film and is connected to the printing layer 102 by an adhesive and attached to the surface of the paper bag body 1. It has good waterproofness and wear resistance, and is low in cost. It can protect the pattern and text printed on the printing layer 102 and has a better visual effect. The outer supporting layer 103 is made of white cardboard, which has a shaping support function and a better three-dimensional effect. The woven layer 104 is made of polyester fiber woven cloth, which has high strength and durability and good load-bearing effect. The inner lining layer 105 is made of It is made of white kraft paper, which has high strength, good tear resistance, environmental protection and pollution-free, moisture-proof and oil-proof, and good air permeability. It is more green and environmentally friendly, and has better load-bearing effect. The printing layer 102, the outer support layer 103, the woven layer 104 and the inner lining layer 105 are bonded by hot pressing technology, and have a high-strength connection. The top of the inner wall of the paper bag body 1 is integrally formed with a folding edge 2, and the outer wall of the folding edge 2 is fixedly connected to the inner wall of the paper bag body 1 by an adhesive, and the type of adhesive is hot melt adhesive, and the structure is more stable. The paper bag body 1 and the top of the folding edge 2 are integrally formed by hot pressing and are provided with a bag edge seal 3, which is an arc shape and more beautiful. A fixing groove 4 is provided at the top of the bag edge seal 3 corresponding to the front and back of the paper bag body 1.
[0021] refer to Figure 2 and Figure 4 As shown, the inner wall of the fixing groove 4 is fixedly connected with a handle 5, and the outer wall of the handle 5 is fixedly connected with a fixing block 6. The fixing block 6 is arranged on the contact surface of the paper bag body 1 and the folded edge 2, and is fixed by hot pressing to make the handle 5 tighter. The handle 5 is woven from cotton and linen ropes, which is more skin-friendly and soft.
[0022] The bottom of the inner wall of the paper bag body 1 is movably connected to a support plate 7. The shape of the support plate 7 is consistent with the shape of the bottom of the inner cavity of the fully expanded paper bag body 1. After the support plate 7 is placed at the bottom of the inner cavity of the paper bag body 1, the goods to be loaded are placed. The support plate 7 has a supporting function and increases the stability of the paper bag body 1.
[0023] An adhesive edge 8 is provided on one side of the inner wall of the paper bag body 1, and the adhesive edge 8 is fixedly connected to the back of the inner wall of the paper bag body 1 by an adhesive, and is a component for connecting and assembling the side edges of the portable paper bag.
[0024] Working principle: When in use, creases are provided on both sides of the paper bag body 1 to quickly expand and fold the paper bag body 1, and then the support plate 7 is placed at the bottom of the inner cavity of the paper bag body 1 and the goods to be put in are placed. The support plate 7 has a supporting function and increases the stability of the paper bag body 1, and then the paper bag body 1 can be lifted by the handle 5. The paper bag body 1 is provided with a waterproof layer 101, a printing layer 102, an outer supporting layer 103, a woven layer 104 and an inner lining layer 105 from the outside to the inside. The waterproof layer 101 adopts a polyethylene film with good waterproofness and wear resistance, and has a low cost. It can protect the pattern and text printed on the printing layer 102, and the visual effect is better. The printing layer 102, the outer supporting layer 103, the woven layer 104 and the inner lining layer 105 are all transparent. The bonding is done by hot pressing technology, and the connection has higher strength. The outer supporting layer 103 is made of white cardboard, which has the function of shaping support and better three-dimensional effect. The inner lining layer 105 is made of white kraft paper, which has high strength, good tear resistance, environmental protection and pollution-free, moisture-proof and oil-proof, and good air permeability. It is more green and environmentally friendly, and has better load-bearing effect. A woven layer 104 is also provided between the outer supporting layer 103 and the inner lining layer 105. The polyester fiber woven cloth has higher strength and durability and good load-bearing effect. The handle 5 is woven from cotton and linen rope, which is more skin-friendly and soft, and is arranged between the paper bag body 1 and the folded edge 2 by a fixing block 6. It is fixed by hot pressing to make the handle 5 tighter. The bag edge seal 3 is hot-pressed and integrated at the folding part of the paper bag body 1 and the folded edge 2. It is in the shape of an arc and more beautiful.
[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-layer printed three-dimensional paper bag, comprising a paper bag body (1), characterized in that: The paper bag body (1) is provided with a waterproof layer (101), a printing layer (102), an outer supporting layer (103), a woven layer (104) and an inner lining layer (105) in sequence from the outside to the inside; the top of the inner wall of the paper bag body (1) is integrally formed with a folding edge (2), and the outer wall of the folding edge (2) is fixedly connected to the inner wall of the paper bag body (1) by an adhesive, and the type of adhesive is hot melt adhesive; the paper bag body (1) and the top of the folding edge (2) are integrally formed by hot pressing to be provided with a bag edge seal (3), and a fixing groove (4) is provided at the top of the bag edge seal (3) corresponding to the front and back sides of the paper bag body (1).
2. The multi-layer printed three-dimensional paper bag according to claim 1, characterized in that: A handle (5) is fixedly connected to the inner wall of the fixing groove (4), and a fixing block (6) is fixedly connected to the outer wall of the handle (5).
3. The multi-layer printed three-dimensional paper bag according to claim 2, characterized in that: The fixing block (6) is arranged on the contact surface of the paper bag body (1) and the folding edge (2) and is fixed by heat pressing. The handle (5) is woven from cotton and linen ropes.
4. The multi-layer printed three-dimensional paper bag according to claim 1, characterized in that: The bottom of the inner wall of the paper bag body (1) is movably connected to a support plate (7), and the shape of the support plate (7) is consistent with the shape of the bottom of the inner cavity of the paper bag body (1) when it is fully expanded.
5. The multi-layer printed three-dimensional paper bag according to claim 1, characterized in that: An adhesive edge (8) is provided on one side of the inner wall of the paper bag body (1), and the adhesive edge (8) is fixedly connected to the back side of the inner wall of the paper bag body (1) via an adhesive.
6. The multi-layer printed three-dimensional paper bag according to claim 1, characterized in that: The waterproof layer (101) is made of a polyethylene film and is connected to the printing layer (102) via an adhesive and attached to the surface of the paper bag body (1).
7. The multi-layer printed three-dimensional paper bag according to claim 1, characterized in that: The outer supporting layer (103) is made of white cardboard, the woven layer (104) is made of polyester fiber woven cloth, and the inner lining layer (105) is made of white kraft paper. The printed layer (102), the outer supporting layer (103), the woven layer (104) and the inner lining layer (105) are bonded by hot pressing technology.