Express bag with good air permeability
By adding a breathable layer and auxiliary strips to the inner layer of the express bag, the problems of poor breathability and easy damage to the express bag are solved, achieving the effects of good breathability, strong waterproofness, and privacy protection.
Patent Information
- Application Number
- CN202520445401.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing express delivery bags have poor air permeability, making it easy for perishable items to rot after sealing. The perforated design is also prone to damage, privacy breaches, and moisture damage.
An inner breathable layer covers the inner wall of the outer bag. The inner breathable layer has air holes that are interwoven. Combined with auxiliary strips, the structural strength is enhanced. The breathable layer is connected to the smooth surface of the outer bag to improve the sealing performance.
It achieves good breathability, enhances bag strength and waterproofness, prevents privacy leaks, protects express items from moisture, and makes it easy to place express packages.
Smart Images

Figure CN223765065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of express delivery bag technology, specifically to an express delivery bag with good breathability. Background Technology
[0002] A courier bag is a bag used to carry express packages. It is usually made of plastic film and has double-sided tape at the opening for sealing.
[0003] Because most express delivery bags are made of plastic film, they have poor air permeability when sealed. If perishable items are placed inside the bag, the items will be trapped inside, accelerating their decay or damage.
[0004] To increase the breathability of express delivery bags, it's easy to think of making them with a perforated structure. However, directly using perforated express delivery bags would present the following problems:
[0005] Perforated express delivery bags are prone to damage from the perforations.
[0006] Hollowed-out courier bags can easily reveal the privacy of the contents of a package;
[0007] Perforated courier bags are easily affected by rain and moisture, which can cause damage to the packages.
[0008] To address the aforementioned issues, a breathable courier bag was proposed that protects the package while maintaining its air permeability. Utility Model Content
[0009] The purpose of this utility model is to provide a courier bag with good breathability to solve the problems mentioned in the background art.
[0010] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a breathable express bag, including an outer bag with an opening and a double-sided adhesive strip. The inner wall of the outer bag is covered with an inner breathable layer, and a plurality of air holes are distributed on the upper part of the inner breathable layer. The inner breathable layer completely covers the inner wall of the outer bag. The double-sided adhesive strip is fixedly connected to the inner wall surface of the inner breathable layer. When the opening of the outer bag is sealed, the double-sided adhesive strip is pasted on the surface of the outer bag to form a sealed part.
[0011] Air is exchanged through the ends and sides of the inner breathable layer, achieving the breathable function.
[0012] Preferably, the surface where the inner breathable layer connects to the outer bag is a smooth surface, and the surface of the inner breathable layer away from the surface where it connects to the outer bag is a breathable surface.
[0013] Preferably, the inner breathable layer has a plurality of breathable holes on its edge and breathable surface, and the breathable holes are interwoven with each other.
[0014] Preferably, an auxiliary strip is fixedly connected to the inner wall of the inner breathable layer. The auxiliary strip is a strip-shaped object used to support the inner wall of the inner breathable layer.
[0015] Preferably, there are multiple auxiliary strips, with gaps between them, and the auxiliary strips are equidistantly distributed.
[0016] Preferably, the auxiliary strip is a plastic strip or a rubber strip.
[0017] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0018] First, this utility model fully covers the inner wall of the outer bag with an inner breathable layer, and covers the front and sides of the inner breathable layer with breathable holes, so that the breathable holes are interconnected. When the outer bag is sealed, air can still be exchanged from the sides and bottom of the seal, achieving a good breathability effect. Moreover, the outer bag itself is not perforated, and the inner breathable layer further strengthens the outer bag, achieving the effects of improving strength, waterproofing, and preventing privacy leakage.
[0019] Secondly, this utility model improves the overall strength of the outer bag by setting several auxiliary strips inside the inner breathable layer and distributing the auxiliary strips at equal intervals. At the same time, because the inner wall of the inner breathable layer is a breathable surface, it is not easy to put the express delivery in. The auxiliary strips make it easier to put the express delivery in. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the structural assembly of this utility model;
[0022] Figure 3 This is a schematic diagram of the inner breathable layer structure of this utility model;
[0023] Figure 4 This is a cross-sectional view of the vent structure of this utility model;
[0024] Figure 5 This is a schematic diagram of air circulation in this utility model.
[0025] The components are: 1. Outer bag; 2. Inner breathable layer; 201. Smooth surface; 202. Breathable surface; 203. Breathable holes; 3. Double-sided adhesive strip; 4. Auxiliary strip. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-5 A breathable express delivery bag includes an outer bag 1 with an opening and a double-sided adhesive strip 3. The inner wall of the outer bag 1 is covered with an inner breathable layer 2. Several air holes are distributed on the upper part of the inner breathable layer 2. The inner breathable layer 2 completely covers the inner wall of the outer bag 1. The double-sided adhesive strip 3 is fixedly connected to the inner wall of the inner breathable layer 2. When the opening of the outer bag 1 is sealed, the double-sided adhesive strip 3 is pasted on the surface of the outer bag 1 to form a sealed part.
[0028] Air is exchanged through the ends and sides of the inner breathable layer 2 to achieve the breathability function.
[0029] Through the above technical solution, the inner breathable layer 2 is fully covered on the inner wall of the outer bag 1, and several air holes are distributed on the inner breathable layer 2 to facilitate air exchange. When the outer bag 1 is sealed, air can still be exchanged through the air holes on the side and bottom of the seal, achieving good breathability. Moreover, the outer bag 1 itself is not perforated, and the inner breathable layer 2 further strengthens the outer bag 1, achieving the effects of increasing strength, waterproofing, and preventing privacy leakage.
[0030] Furthermore, because of the inner breathable layer 2, the outer bag 1 has a slight impact resistance, which can also protect the express delivery to a certain extent.
[0031] Specifically, the surface connecting the inner breathable layer 2 and the outer bag 1 is a smooth surface 201, and the surface of the inner breathable layer 2 away from the surface connecting with the outer bag 1 is a breathable surface 202.
[0032] Through the above technical solution, the connection surface between the inner breathable layer 2 and the outer bag 1 is set as a smooth surface 201, which facilitates the connection. The connection between the inner breathable layer 2 and the outer bag 1 can be achieved by means of adhesive bonding, hot melting, etc., as long as a firm connection can be achieved. While facilitating the connection, the smooth surface 201 can also improve the strength of the inner breathable layer 2. If the inner breathable layer 2 is completely penetrated, the overall strength of the inner breathable layer 2 will be weakened and it will be easily torn. However, by connecting through the smooth surface 201, the inner breathable layer 2 will not be so fragile.
[0033] The breathable surface 202 is designed to allow air to circulate inside the outer bag 1, giving the inner part of the outer bag 1 good breathability.
[0034] Specifically, several air holes 203 are provided on the edge of the inner breathable layer 2 and on the breathable surface 202, and the air holes 203 are interwoven with each other.
[0035] Through the above technical solution, the vents 203 are set on the edge of the inner breathable layer 2 and the breathable surface 202 to increase the air exchange area inside the outer bag 1. After the opening of the outer bag 1 is sealed, air can still be exchanged from the bottom and sides of the seal, so that the sealing of the outer bag 1 does not affect the breathability. In addition, the interlaced hollow structure also has the function of adsorption in physical terms, thus effectively realizing the function of moisture absorption.
[0036] Specifically, an auxiliary strip 4 is fixedly connected to the inner wall of the inner breathable layer 2. The auxiliary strip 4 is a strip-shaped object used to support the inner wall of the inner breathable layer 2.
[0037] The purpose of setting the auxiliary strip 4 on the inner wall of the inner breathable layer 2 through the above technical solution is twofold:
[0038] Firstly, it increases the overall structural strength of the outer bag 1, thereby giving the outer bag 1 better resistance to damage;
[0039] Secondly, the smoothness of the inner wall of the inner breathable layer 2 is increased, so that when the express delivery is placed, the end of the express delivery will contact the smooth surface of the auxiliary strip 4, avoiding the end of the express delivery from contacting the breathable surface 202, which would make it difficult to place.
[0040] Specifically, there are multiple auxiliary strips 4, with gaps between them, and the auxiliary strips 4 are equidistantly distributed.
[0041] The purpose of setting multiple auxiliary strips 4 through the above technical solution is to increase the contact area with the express delivery. The gaps between the multiple auxiliary strips 4 are the ventilation gaps, which can prevent the surface of the express delivery from being completely covered by the surface of the breathable surface 202, thus reducing the breathability.
[0042] Specifically, auxiliary strip 4 is a plastic strip or a rubber strip.
[0043] Through the above technical solution, when the auxiliary strip 4 is a plastic strip or a rubber strip, because both plastic strips and rubber strips are relatively soft, the outer bag 1 can be folded and rolled up in any direction for easy storage. When the auxiliary strip 4 is a rubber strip, the extensibility of the rubber strip can better improve the tear and tensile strength of the outer bag 1, and can effectively improve the strength of the outer bag 1.
[0044] When in use, the inner breathable layer 2 is completely covered on the inner wall of the outer bag 1, and the front and sides of the inner breathable layer 2 are covered with breathable holes 203, and the breathable holes 203 are interwoven with each other. When the outer bag 1 is sealed, air can still be exchanged from the sides and bottom of the seal, achieving a good breathability effect. Moreover, the outer bag 1 itself is not perforated, and the inner breathable layer 2 further strengthens the outer bag 1, achieving the effects of increasing strength, waterproofing, and preventing privacy leakage.
[0045] By setting several auxiliary strips 4 inside the inner breathable layer 2 and distributing the auxiliary strips 4 at equal intervals, the overall strength of the outer bag 1 is improved while ensuring the breathability of the inner breathable layer 2. At the same time, because the inner wall of the inner breathable layer 2 is a breathable surface 202, it is not easy to put the express delivery in. The auxiliary strips 4 can make it easier to put the express delivery in.
[0046] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A good air permeability express bag, comprising an outer bag (1) with an opening, and a double-sided adhesive tape (3), characterized in that: The inner wall of the outer bag (1) is covered with an inner breathable layer (2), a plurality of air holes are distributed above the inner breathable layer (2), the inner breathable layer (2) completely covers the inner wall of the outer bag (1), the double-sided adhesive tape (3) is fixedly connected to the inner wall surface of the inner breathable layer (2), and when the outer bag (1) is sealed, the double-sided adhesive tape (3) is pasted on the surface of the outer bag (1) to form a sealed part.
2. The express bag with good air permeability according to claim 1, characterized in that: The connecting surface of the inner breathable layer (2) and the outer bag (1) is a smooth surface (201), and the connecting surface of the inner breathable layer (2) away from the outer bag (1) is a breathable surface (202).
3. The express bag with good air permeability according to claim 2, characterized in that: A plurality of air holes (203) are arranged on the edge and the breathable surface (202) of the inner breathable layer (2), and the air holes (203) are interlaced and through each other.
4. The express bag with good air permeability according to claim 1, characterized in that: The inner wall of the inner breathable layer (2) is fixedly connected with an auxiliary strip (4), the auxiliary strip (4) is a strip-shaped object and is used for supporting the inner wall of the inner breathable layer (2).
5. The express bag with good air permeability according to claim 4, characterized in that: The number of the auxiliary strips (4) is multiple, gaps are left between the multiple auxiliary strips (4), and the multiple auxiliary strips (4) are equidistantly distributed.
6. The express bag with good air permeability according to claim 5, characterized in that: The auxiliary strip (4) is a plastic strip or a rubber strip.