Plastic buffering packaging bag
By using buffer packaging bags made of all plastic materials, the design of using slit areas to expand into a three-dimensional grid structure, the problems of high transportation costs and high recycling costs in the prior art are solved, and the effect of reducing costs and easy recycling is achieved.
Patent Information
- Application Number
- CN202421536668.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing buffer packaging bags are expensive during transportation and have high recycling costs, making it difficult to reduce raw materials and transportation costs and achieve environmentally friendly recycling.
A cushioning packaging bag made of all plastic material includes an outer bag body and an internal cushioning pad. The cushioning pad is a planar structure when not in use, and is expanded into a three-dimensional grid structure when used, providing cushioning performance.
The raw materials and transportation costs are reduced, and due to the use of a single plastic material, labor costs are reduced during the recycling process and can be directly recycled and reused.
Smart Images
Figure CN222947353U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the fields of express delivery, postal service and e-commerce packaging, and in particular to a plastic cushioning packaging bag. Background Art
[0002] The cushioning packaging bag is generally a plastic bubble cushioning structure. The bubble cushioning structure is a cushioning structure formed by inflation. The existing bubble cushioning structure is generally a columnar bubble. During express packaging, multiple columnar bubbles are filled in the gaps of the packaging box to form protection. Another method is to make the bubble cushioning structure into a belt, which can be included or wrapped around the packaged object. However, this cushioning structure relies on the sealed gas, and when inflated, the thickness is relatively large, and the transportation cost is huge.
[0003] Therefore, a kind of prefabricated cushioning packaging bag has appeared on the market. The cushioning structure of this packaging bag is a flat structure before use, and it is opened or unfolded into a three-dimensional structure to play a cushioning role when used. Compared with the above-mentioned bubble cushioning structure, it can save a lot of freight. However, this prefabricated cushioning packaging bag is generally made of kraft paper and stretch paper, and the cost of kraft paper and stretch paper is relatively high.
[0004] In addition, packaging bags are also required to be environmentally friendly after use. Environmental protection requires that they can either be naturally degraded or recycled. The best solution for recycling is to use a single material, which can be easily recycled. Existing environmentally friendly packaging bags generally use a mixture of plastic and paper materials, which is not easy to recycle and requires manual separation of the two materials, increasing the recycling cost.
[0005] How to produce an environmentally friendly packaging bag while reducing raw material costs and saving transportation costs is a technical problem that needs to be solved. Utility Model Content
[0006] The purpose of the utility model is to provide a plastic cushioning packaging bag, which comprises:
[0007] An outer bag body, the outer bag body comprising a bag opening, a bag bottom opposite to the bag opening, and two side edges connecting the bag opening and the bag bottom, the two side edges being respectively located at two sides of the bag bottom;
[0008] At least one cushion pad located inside the outer bag body, the cushion pad comprising a first surface, two ends of the first surface in a length direction are respectively fixed to two inner walls opposite to the bag opening, a side edge of the first surface in a width direction is not connected to the outer bag body, and an end of the first surface away from the bag opening is suspended from the outer bag body;
[0009] Wherein, at least one slit area is provided on the first surface, the slit area includes a plurality of cutting lines arranged in a row, the cutting lines intersect in the length direction, a plurality of slits cut and distributed at intervals on each cutting line, the slits on two adjacent cutting lines are staggered with each other, and the slits are unfolded and twisted into a three-dimensional grid structure when the packaging bag is put into the article, so that the length of the first surface is increased to form a buffer layer;
[0010] Wherein, the first surface and the outer bag body are made of plastic material, the hardness of the outer bag body is greater than the hardness of the first surface, or the mass of the outer bag body is greater than the mass of the first surface.
[0011] In the utility model, firstly, all plastic materials are used, which can reduce the cost of raw materials. Moreover, the first surface is a plane structure with a slit area when not in use, and is only opened to a three-dimensional grid structure buffer layer with buffering performance when in use, which saves costs during transportation. Another point is that a single plastic material is used, which reduces labor costs during recycling, and can be directly recycled and made into plastic products, which is easy to recycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the plastic cushioning packaging bag of the utility model;
[0013] Figure 2 is a schematic diagram of the slit region structure;
[0014] Figure 3 is a schematic diagram of the buffer layer structure after the slit area is expanded;
[0015] Figure 4 It is a schematic diagram of the side section structure of a plastic cushioning packaging bag;
[0016] Figure 5 It is a schematic diagram of the side cross-sectional structure of the plastic cushioning packaging bag after the first side is unfolded;
[0017] Figure 6 is a schematic diagram of a packaging bag structure having a multi-layer first surface;
[0018] Figure 7 It is a schematic diagram of the packaging bag structure after the side edges of the first surface are connected. DETAILED DESCRIPTION
[0019] The present invention is further described and illustrated below in conjunction with specific embodiments and accompanying drawings:
[0020] Please refer to Figure 1 , Figure 1 Schematic diagram of the structure of the packaging bag of the utility model, wherein the plastic cushioning packaging bag 100 comprises:
[0021] 1. An outer bag body 10, the outer bag body comprising a bag opening 101, a bag bottom 102 opposite to the bag opening 101, and two side edges 103 connecting the bag opening 101 and the bag bottom 102, the two side edges being located at two sides of the bag bottom 102 respectively.
[0022] 2. At least one buffer pad 20, the buffer pad 20 is located inside the outer bag body 10, and the buffer pad 20 includes a first surface 21, two end portions a of the first surface 21 in the length direction are respectively fixed to two inner walls opposite to the bag opening 101, a side b of the first surface 21 in the width direction is not connected to the outer bag body 10, and an end portion c of the first surface 21 away from the bag opening is suspended from the outer bag body 10.
[0023] Among them, Figure 2 and Figure 3 , at least one slit area 22 is provided on the first surface 21, the slit area 22 includes a plurality of cutting lines 221 arranged in a row, the cutting lines 221 intersect in the length direction, a plurality of slits 222 cut and distributed at intervals on each of the cutting lines 221, the slits 222 on two adjacent cutting lines 221 are staggered with each other, and the slits 222 are unfolded when the packaging bag is put into the article, and twisted into a three-dimensional grid structure 223, so that the length of the first surface 21 is increased to form a buffer layer 23;
[0024] The first surface 21 and the outer bag body 10 are made of plastic, the hardness of the outer bag body 10 is greater than the hardness of the first surface 21 , or the mass of the outer bag body 10 is greater than the mass of the first surface 21 .
[0025] In the present invention, firstly, all plastic materials are used, which can reduce the cost of raw materials. Moreover, the first surface 21 is a plane structure with a slit area 22 when not in use, and is only opened to form a three-dimensional grid structure buffer layer 23 with buffering performance when in use, which saves costs during transportation. Another point is that a single plastic material is used, which reduces labor costs during recycling, and can be directly recycled and made into plastic products, which is easy to recycle.
[0026] In addition, only when the hardness of the outer bag body 10 is greater than the hardness of the first surface 21, or the mass of the outer bag body 10 is greater than the mass of the first surface 21, after the first surface 21 is unfolded into the buffer layer 23, the outer bag body 10 can overcome the shrinkage force of the buffer layer 23 itself changing toward the slit area 23 restoring to a planar structure and maintain the buffering performance, that is, the buffer layer 23 maintains a three-dimensional grid structure with buffering performance for at least a relatively long time.
[0027] like Figure 4 and Figure 5 , Figure 4It is a schematic diagram of the side section structure of a plastic cushioning packaging bag; Figure 5 It can be seen from the figure that when the slit area 22 is unfolded, the length increases, and the slit 222 changes into a three-dimensional grid structure buffer layer 23. At this time, the packaging bag 100 has a buffering performance.
[0028] See also Figure 1 , wherein the width of the first surface 20 is smaller than that of the outer bag body 10, so that the first surface 20 can be ensured to move toward the bag bottom 102 when an object is placed.
[0029] Among them, Figure 1 , and combined with Figure 4 and Figure 5 The first surface 20 is provided with an adhesive 30 at the bottom c of the bag opening a. The adhesive 30 is located on the side of the first surface 20 facing the bag bottom 102. After the first surface 20 is unfolded, the adhesive 30 is connected to the bag bottom 102. At this time, one end of the two ends of the first surface 20 can be fixed to the bag opening 101, and the other end can be fixed to the bag bottom 102, so as to prevent the shrinkage and recovery of the buffer layer 23.
[0030] like Figure 6 In other embodiments of the present invention, the cushioning pad 20 includes two or more layers of the first surface 22. When multiple layers of the first surface 22 are provided, the cushioning performance can be further improved.
[0031] like Figure 7 In another embodiment of the present invention, the two opposite sides x of the first surface 20 in the width direction are connected to each other to form a bag body. When the first surface 20 is changed into the buffer layer 23, the length increases and the width decreases, forming an uncovered area similar to a semi-arc near the side of the packaging bag 100. The area not covered by the buffer layer does not have a buffering performance, which may reduce the buffering effect of the packaging bag 100 and there is a risk of damaging the packaged goods. In the present invention, by connecting the two opposite sides X of the first surface 20 to form a bag body, it can be ensured that the buffer layer 23 fully covers the entire package, thereby improving the buffering performance.
[0032] See also Figure 2 and Figure 3In the present invention, the preferred plastic material is PE, PEP or PS. After selecting such a material, the length of the slit cut on the first surface 20 is not more than 2 cm, and the distance between two adjacent cutting lines 221 is less than 0.8 cm. The use of such a material and such a cutting size can ensure the smooth expansion of the slit 222 and the buffering performance of the buffer layer 23 after expansion. Among them, the increased length of the buffer layer 23 after expansion is between 0.2 and 1 times the length of the original slit area 22, and the conversion rate is relatively large, so that when making the first surface 22, materials can be saved as much as possible, and due to less force, it is easier to expand.
[0033] In the utility model, firstly, all plastic materials are used, which can reduce the cost of raw materials. Moreover, the first surface is a plane structure with a slit area when not in use, and is only opened to a three-dimensional grid structure buffer layer with buffering performance when in use, which saves costs during transportation. Another point is that a single plastic material is used, which reduces labor costs during recycling, and can be directly recycled and made into plastic products, which is easy to recycle.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A plastic cushioning packaging bag, characterized in that: The packaging bag comprises: An outer bag body, the outer bag body comprising a bag opening, a bag bottom opposite to the bag opening, and two side edges connecting the bag opening and the bag bottom, the two side edges being respectively located at two sides of the bag bottom; At least one cushion pad located inside the outer bag body, the cushion pad comprising a first surface, two ends of the first surface in a length direction are respectively fixed to two inner walls opposite to the bag opening, a side edge of the first surface in a width direction is not connected to the outer bag body, and an end of the first surface away from the bag opening is suspended from the outer bag body; Wherein, at least one slit area is provided on the first surface, the slit area includes a plurality of cutting lines arranged in a row, the cutting lines intersect in the length direction, a plurality of slits cut and distributed at intervals on each cutting line, the slits on two adjacent cutting lines are staggered with each other, and the slits are unfolded and twisted into a three-dimensional grid structure when the packaging bag is put into the article, so that the length of the first surface is increased to form a buffer layer; Wherein, the first surface and the outer bag body are made of plastic material, the hardness of the outer bag body is greater than the hardness of the first surface, or the mass of the outer bag body is greater than the mass of the first surface.
2. The plastic cushioning packaging bag according to claim 1, characterized in that: The buffer pad includes two or more layers of the first surface.
3. The plastic cushioning packaging bag according to claim 1, characterized in that: The width of the first surface is smaller than the width of the outer bag body.
4. The plastic cushioning packaging bag according to claim 1, characterized in that: Two opposite sides of the first surface in the width direction are connected to each other to form a bag body.
5. The plastic cushioning packaging bag according to claim 1, characterized in that: The first surface is provided with an adhesive at the bottom of the bag opening, and the adhesive is located on the side of the first surface facing the bag bottom. When the first surface is unfolded, the adhesive is connected to the bag bottom.
6. The plastic cushioning packaging bag according to claim 1, characterized in that: The increased length of the buffer layer is between 0.2 and 1 times the length of the original slit region.
7. The plastic cushioning packaging bag according to claim 1, characterized in that: The length of the slit is no more than 2 cm, and the distance between two adjacent cutting lines is less than 0.8 cm.