Water-filled ice bag

By using a structure consisting of a waterproof fabric layer and a non-woven fabric layer in the ice pack, filling it with absorbent resin and setting a hydrophobic part, the problems of ice pack sticking together and slow water absorption after freezing are solved, enabling the independent use of the ice pack and efficient water absorption.

CN224479898UActive Publication Date: 2026-07-10XUJING NEW MATERIALS TECHNOLOGY (CHANGZHOU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUJING NEW MATERIALS TECHNOLOGY (CHANGZHOU) CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing self-absorbing ice packs tend to stick together after freezing, affecting their use, and their water absorption efficiency is relatively slow.

Method used

The ice pack body is composed of a waterproof fabric layer and a non-woven fabric layer, and is filled with water-absorbing resin. A hydrophobic part is set on the outside of the non-woven fabric layer. The area of ​​the hydrophobic part is not less than 20% of the total area of ​​the non-woven fabric layer. After absorbing water, the hydrophobic part is raised to prevent freezing and sticking.

Benefits of technology

It solves the problem of ice packs not sticking together after freezing, maintains their independence, and improves water absorption efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to ice bag technical field especially, more particularly to a kind of water injection ice bag, including ice bag body, the ice bag body is composed of waterproof cloth layer and non-woven fabric layer, and the waterproof cloth layer and non-woven fabric layer between formation have placement cavity, and placement cavity is filled with water-absorbing resin, the middle region of non-woven fabric layer outside is provided with hydrophobic part, the area of hydrophobic part is not less than 20% of non-woven fabric layer total area, the water injection ice bag use process, water-absorbing resin absorbs water, and expand, the height of the uppermost end of hydrophobic part is higher than the height of the uppermost end of other regions of non-woven fabric layer outside, i.
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Description

Technical Field

[0001] This utility model relates to the field of ice pack technology, and in particular to a water-filled ice pack. Background Technology

[0002] Currently, there are two main types of self-absorbing ice packs on the market: one type has one side made of non-woven fabric and the other of plastic film, and the other type has plastic film on both sides with micro-pores evenly arranged on the bag. The disadvantage of the first type, the non-woven fabric ice pack, is that the non-woven fabric is prone to water seepage. After the ice pack freezes, the water inside the non-woven fabric will condense into ice cubes, causing adjacent ice packs to stick together. Separating the ice packs can easily cause damage, affecting their normal use. The second type, the ice pack with plastic film on both sides, while avoiding the seepage and sticking problems, has micropores, resulting in slower water absorption and affecting the freezing efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a water-filled ice pack.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A water-filled ice pack includes an ice pack body, which is composed of a waterproof fabric layer and a non-woven fabric layer. A placement cavity is formed between the waterproof fabric layer and the non-woven fabric layer, and the placement cavity is filled with water-absorbing resin. A hydrophobic part is provided in the middle area of ​​the outer side of the non-woven fabric layer, and the area of ​​the hydrophobic part is not less than 20% of the total area of ​​the non-woven fabric layer.

[0006] Preferably, the area of ​​the hydrophobic portion accounts for 20%-80% of the total area of ​​the nonwoven fabric layer.

[0007] Preferably, after the absorbent resin absorbs water and swells, the height of the uppermost part of the hydrophobic portion is higher than the height of the uppermost part of other areas on the outer surface of the nonwoven fabric layer.

[0008] Preferably, the shape of the hydrophobic portion is a regular or irregular shape.

[0009] Preferably, the edge of the ice pack body is provided with a connecting part made of a waterproof cloth layer and a non-woven cloth layer bonded together, and the ice pack bodies are connected to each other through the connecting part.

[0010] The beneficial effects of this utility model are: during the use of the water-absorbing ice pack, the water-absorbing resin absorbs water and expands, and the height of the uppermost part of the hydrophobic part is higher than the height of the uppermost part of other areas on the outer side of the non-woven fabric layer, that is, the hydrophobic part is convex. When the ice pack freezes, since the hydrophobic part contains almost no water, ice will not form in the hydrophobic part, and adjacent ice packs will not stick together, so the ice pack can be used normally. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an ice pack roll formed by multiple ice pack bodies of a water-filled ice pack according to the present invention.

[0012] Figure 2 This is a schematic diagram of the main structure of the ice pack body of a water-filled ice pack according to the present invention. Figure 1 ;

[0013] Figure 3 This is a cross-sectional view of the ice pack body of a water-filled ice pack according to the present invention when it has not absorbed water.

[0014] Figure 4 This is a cross-sectional structural diagram of the ice pack body after water absorption, according to the present invention.

[0015] Figure 5 This is a schematic diagram of the main structure of the ice pack body of a water-filled ice pack according to the present invention. Figure 2 ;

[0016] Figure 6 This is a schematic diagram of the main structure of the ice pack body of a water-filled ice pack according to the present invention. Figure 3 .

[0017] In the diagram: 1. Ice pack body, 2. Connecting part, 11. Waterproof fabric layer, 12. Non-woven fabric layer, 13. Water-absorbing resin, 14. Hydrophobic part. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-6 A water-filled ice pack includes an ice pack body 1, which is composed of a waterproof fabric layer 11 and a non-woven fabric layer 12. A placement cavity is formed between the waterproof fabric layer 11 and the non-woven fabric layer 12, and the placement cavity is filled with water-absorbing resin 13. A hydrophobic part 14 is provided in the middle area of ​​the outer side of the non-woven fabric layer 12, and the area of ​​the hydrophobic part 14 is not less than 20% of the total area of ​​the non-woven fabric layer 12.

[0020] The area of ​​the hydrophobic part 14 accounts for 20%-80% of the total area of ​​the nonwoven layer 12.

[0021] When the absorbent resin 13 absorbs water and expands, the height of the uppermost part of the hydrophobic part 14 is higher than the height of the uppermost part of other areas on the outer side of the nonwoven fabric layer 12, ensuring that the nonwoven fabric layer 12 side of the ice pack body 1 can contact other items through the hydrophobic part 14.

[0022] The hydrophobic part 14 can be a regular or irregular shape, such as... Figure 2 and Figure 5 It is a regular square or circle, such as Figure 6 As shown, it is an irregular shape.

[0023] The edge of the ice pack body 1 is provided with a connecting part 2, which is formed by bonding a waterproof fabric layer 11 and a non-woven fabric layer 12. The ice pack bodies 1 are connected to each other through the connecting part 2. In the production process, it is usually produced as follows. Figure 1 The ice pack roll shown has multiple ice pack bodies 1. When using, the ice pack roll can be cut as needed.

[0024] During use, the absorbent resin 13 absorbs water and expands. The height of the uppermost part of the hydrophobic part 14 is higher than the height of the uppermost part of other areas on the outer side of the non-woven fabric layer 12, that is, the hydrophobic part 14 is convex. When the ice pack freezes, since the inside of the hydrophobic part 14 contains almost no water, ice will not form at the hydrophobic part 14, adjacent ice packs will not stick together, and the ice pack will not stick to other items. The ice pack can be used normally.

[0025] During the production of this absorbent ice pack, the non-woven fabric layer 12 is hot-pressed onto the waterproof fabric layer 11 using a hot press, while the absorbent resin 13 is confined between the non-woven fabric layer 12 and the waterproof fabric layer 11. For the molding of the hydrophobic part 14, a simple method is to use a hot press to iron the upper end of the non-woven fabric layer 12 flat, or to brush the upper end of the non-woven fabric layer 12 with waterproof resin.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water-filled ice pack, comprising an ice pack body (1), wherein the ice pack body (1) is composed of a waterproof fabric layer (11) and a non-woven fabric layer (12), a placement cavity is formed between the waterproof fabric layer (11) and the non-woven fabric layer (12), and the placement cavity is filled with absorbent resin (13), characterized in that, A hydrophobic portion (14) is provided in the middle region of the outer side of the nonwoven fabric layer (12), and the area of ​​the hydrophobic portion (14) is not less than 20% of the total area of ​​the nonwoven fabric layer (12).

2. The water-filled ice pack according to claim 1, characterized in that, The area of ​​the hydrophobic part (14) accounts for 20%-80% of the total area of ​​the nonwoven layer (12).

3. A water-filled ice pack according to claim 2, characterized in that, When the water-absorbing resin (13) absorbs water and expands, the height of the uppermost part of the hydrophobic part (14) is higher than the height of the uppermost part of other areas on the outer side of the nonwoven fabric layer (12).

4. A water-filled ice pack according to claim 3, characterized in that, The shape of the hydrophobic part (14) is a regular or irregular shape.

5. A water-filled ice pack according to claim 1, characterized in that, The ice pack body (1) has a connecting part (2) at its edge, which is made of a waterproof cloth layer (11) and a non-woven cloth layer (12) bonded together, and the ice pack bodies (1) are connected to each other through the connecting part (2).