Self-standing self-sucking ice bag
By embedding a water-permeable layer in the self-absorbing ice pack and setting it in a V-shape, the problems of large water permeability and resin leakage of traditional self-absorbing ice packs are solved, achieving more hygienic preservation and transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional self-absorbing ice packs have a high water permeability on their permeable surface, and the absorbent resin can easily leak out, leading to contamination and unsanitary conditions of the food being stored.
Design a self-standing, self-absorbing ice pack by embedding a water-permeable layer below the first and second plastic layers, reducing the area of the water-permeable layer, and setting it to be V-shaped and contracted inward to avoid direct contact with items.
It reduces the leakage of absorbent resin, improves hygiene during transportation, and reduces contamination of fresh goods.
Smart Images

Figure CN224076151U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of ice packs, and in particular to a self-standing, self-absorbing ice pack. Background Technology
[0002] Ice packs are reusable and can replace dry ice, ice cubes, etc. They have a wide range of applications, such as long-distance refrigerated transport of fresh food. Traditional self-absorbing ice packs use a non-woven fabric (or a water-permeable surface) on one side and a polyethylene film on the other, with the edges sealed by heat pressing. The inside is filled with superabsorbent resin. Therefore, ice packs are made by sealing a large area of non-woven fabric or a water-permeable surface on one side with a single-sided polyethylene film. However, this structure may have the following drawbacks:
[0003] This large permeable surface allows for a high water permeability. Conversely, once the resin becomes saturated with water, it forms a sticky semi-solid substance that may also flow out with the permeable surface and stick to items that need to be preserved, which is extremely unhygienic.
[0004] In view of this, the inventor has designed a self-standing, self-absorbing ice pack, which leads to this invention. Utility Model Content
[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a self-standing, self-absorbing ice pack. By embedding a water-permeable layer below the first and second plastic layers, the area of the water-permeable layer is reduced, thus reducing the outflow of absorbent resin. At the same time, the water-permeable layer contracts inward in a V-shape, which can prevent direct contact with items during transportation, overcoming the defects that traditional ice packs may bring.
[0006] A self-standing, self-absorbing ice pack according to this utility model includes an outer bag body; the outer bag body includes:
[0007] The first plastic layer has a first fixed area on both sides near the edge, and the remaining parts on both sides near the edge and the bottom edge form a second fixed area.
[0008] A second plastic layer is provided, with a third fixed area corresponding to the first fixed area and a fourth fixed area corresponding to the second fixed area;
[0009] A water-permeable layer, which is V-shaped and embedded between a first plastic layer and a second plastic layer;
[0010] The first fixed area and the third fixed area are fixedly arranged together. One side of the permeable layer is fixedly arranged with the second fixed area, and the other side is fixedly arranged with the fourth fixed area.
[0011] The self-absorbing ice pack of this invention reduces the area of the permeable layer by embedding a water-permeable layer below the first and second plastic layers, thus reducing the outflow of absorbent resin. At the same time, the permeable layer is V-shaped and contracts inward, which can prevent it from directly contacting the items during transportation, making it more hygienic.
[0012] In some embodiments of this utility model, the first plastic layer and the second plastic layer are made of polyethylene film.
[0013] In some embodiments of this utility model, the fixing between the first fixing region and the third fixing region is achieved by heat sealing.
[0014] In some embodiments of this utility model, the heat sealing process uses a heat-sealing temperature of 120°C to 135°C.
[0015] In some embodiments of this utility model, the two first fixed regions and the two third fixed regions are strip-shaped, and the second fixed region and the fourth fixed region as a whole can be U-shaped.
[0016] In some embodiments of this utility model, the water-permeable layer is made of non-woven fabric.
[0017] In some embodiments of this utility model, the water-permeable layer is made by folding a whole piece of non-woven fabric in half and embedding it between the first plastic layer and the second plastic layer.
[0018] In some embodiments of this utility model, ultrasonic sealing or high-frequency sealing is used between the second fixed area and the water-permeable layer, and between the fourth fixed area and the water-permeable layer.
[0019] In some embodiments of this utility model, the first plastic layer and the second plastic layer are made of two polyethylene films with the same shape stacked together, and the top edges of the first plastic layer and the second plastic layer are respectively provided with a fifth fixing area and a sixth fixing area, which are fixedly set.
[0020] In some embodiments of this invention, the outer bag is filled with absorbent resin particles. Attached Figure Description
[0021] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0022] in:
[0023] Figure 1 This is a schematic diagram of the self-standing self-absorbing ice pack of this utility model;
[0024] Figure 2 This is a schematic diagram of the first plastic layer of this utility model;
[0025] Figure 3 This is a schematic diagram of the second plastic layer of this utility model;
[0026] Figure 4 This is a schematic diagram of the structure of the permeable layer of this utility model.
[0027] Label Explanation:
[0028] 10. First plastic layer; 11. First fixed area; 12. Second fixed area; 13. Fifth fixed area; 20. Second plastic layer; 21. Third fixed area; 22. Fourth fixed area; 23. Sixth fixed area; 30. Water-permeable layer. Detailed Implementation
[0029] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0030] Please see Figures 1 to 4 This is a self-standing, self-absorbing ice pack according to an embodiment of the present utility model, comprising an outer bag body; the outer bag body includes: a first plastic layer 10, a second plastic layer 20, and a water-permeable layer 30, the portions of the first plastic layer 10 near the edges on both sides are first fixing areas 11, and the remaining portions near the edges on both sides and the bottom edge are second fixing areas 12; the second plastic layer 20 is provided with a third fixing area 21 corresponding to the first fixing area 11, and a fourth fixing area 22 corresponding to the second fixing area 12; the water-permeable layer 30 is V-shaped and embedded between the first plastic layer 10 and the second plastic layer 20; the first fixing area 11 and the third fixing area 21 are fixedly disposed between each other, one side of the water-permeable layer 30 is fixedly disposed with the second fixing area 12, and the other side is fixedly disposed with the fourth fixing area 22. The self-absorbing ice pack of this utility model has a water-permeable layer 30 embedded below the first plastic layer 10 and the second plastic layer 20, which reduces the area of the water-permeable layer 30 and reduces the outflow of water-absorbing resin. At the same time, the water-permeable layer 30 is V-shaped and shrinks inward, which can avoid direct contact with items during transportation and is more hygienic.
[0031] The outer bag of this invention is filled with water-absorbing resin particles (super absorbent resin).
[0032] The first plastic layer 10 and the second plastic layer 20 are made of polyethylene film. Therefore, during transportation, the fresh food comes into contact with more of the polyethylene film, which reduces the contamination of the fresh food.
[0033] Please refer to details. Figure 2 , 3 The two first fixing areas 11 and the two third fixing areas 21 are strip-shaped, while the second fixing area 12 and the fourth fixing area 22 can be U-shaped. The fixing between the first fixing area 11 and the third fixing area 21 is achieved using a heat-sealing process, with a melting and pressing temperature of 120℃~135℃. The second fixing area 12 and the water-permeable layer 30, and the fourth fixing area 22 and the water-permeable layer 30, are sealed using ultrasonic or high-frequency sealing. The sides and bottom of the outer bag are sealed sequentially and simultaneously. Because the bottom material is non-woven fabric, which cannot be heat-sealed with the polyethylene body, ultrasonic sealing is used.
[0034] Please refer to details. Figure 4 The permeable layer 30 is made of non-woven fabric, which is a single piece of non-woven fabric folded in half and embedded between the first plastic layer 10 and the second plastic layer 20. Specifically, the permeable layer 30 can be folded in half to form a V-shape. After being embedded between the first plastic layer 10 and the second plastic layer 20, the opening faces downward, giving the ice pack a self-standing function to adapt to more situations.
[0035] Please refer to details. Figure 2 , 3 The first plastic layer 10 and the second plastic layer 20 are made of two polyethylene films with the same shape stacked together. The top edges of the first plastic layer 10 and the second plastic layer 20 are respectively provided with a fifth fixing area 13 and a sixth fixing area 23. The fifth fixing area 13 and the sixth fixing area 23 are fixedly set. Specifically, the first plastic layer 10 and the second plastic layer 20 are first stacked, and then the first fixing area 11 and the third fixing area 21 are heat-sealed and fixed. The second fixing area 12 and the fourth fixing area 22 are fixed on both sides of the water-permeable layer 30 respectively. After filling with water-absorbing resin particles, the fifth fixing area 13 and the sixth fixing area 23 are heat-sealed and fixed.
[0036] Please refer to details. Figure 1 The first plastic layer 10 and the second plastic layer 20 have rounded corners at the four corners to prevent sharp corners from injuring items or users.
[0037] In summary, the self-absorbing ice pack of this utility model reduces the area of the permeable layer by embedding a water-permeable layer below the first and second plastic layers, thereby reducing the outflow of absorbent resin. At the same time, the permeable layer is V-shaped and contracts inward, which can prevent direct contact with the items during transportation, making it more hygienic. Therefore, in order to reduce the outflow of absorbent resin, we propose to reduce the area of the water-absorbing structure, place the water-absorbing material at the bottom of the bag, and use a single material, polyethylene, to composite the main part of the bag body to reduce contamination of the preserved items.
[0038] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A self-standing, self-suction ice pack, characterized by, The outer bag body comprises: A first plastic layer (10), the part near the edge on both sides of the first plastic layer (10) is a first fixed area (11), and the remaining part near the edge on both sides and the bottom edge is a second fixed area (12); A second plastic layer (20), the second plastic layer (20) is provided with a third fixed area (21) corresponding to the first fixed area (11), and a fourth fixed area (22) corresponding to the second fixed area (12); A water-permeable layer (30), the water-permeable layer (30) is in a V-shaped form and is embedded between the first plastic layer (10) and the second plastic layer (20); The water-permeable layer (30) is fixedly arranged on one side of the second fixed area (12) and on the other side of the fourth fixed area (22) between the first fixed area (11) and the third fixed area (21).
2. The self-standing, self-contained ice bag of claim 1, wherein, The first plastic layer (10) and the second plastic layer (20) are made of polyethylene film.
3. The self-standing, self-contained ice bag of claim 1, wherein, The first fixed area (11) and the third fixed area (21) are fixed by heat sealing process.
4. The self-standing, self-contained ice bag of claim 1, wherein, The water-permeable layer (30) is made of non-woven fabric.
5. The self-standing, self-contained ice bag of claim 1, wherein, The water-permeable layer (30) is made of a whole piece of non-woven fabric which is folded and embedded between the first plastic layer (10) and the second plastic layer (20).
6. The self-standing, self-contained ice bag of claim 1, wherein, The second fixed area (12) and the water-permeable layer (30) and the fourth fixed area (22) and the water-permeable layer (30) are sealed by ultrasonic sealing or high-frequency sealing.
7. The self-standing, self-contained ice bag of claim 1, wherein, The first plastic layer (10) and the second plastic layer (20) are stacked by two polyethylene films with consistent shapes, and the first plastic layer (10) and the second plastic layer (20) are respectively provided with a fifth fixed area (13) and a sixth fixed area (23) at the top edge, and the fifth fixed area (13) and the sixth fixed area (23) are fixedly arranged.
8. The self-standing, self-contained ice bag of claim 1, wherein, The outer bag body is filled with water-absorbing resin particles.