Ice bag production method and ice bag

Abstract

The invention discloses an ice bag production method which is characterized by comprising the following steps: S1, punching a first outer bag body film (1) to obtain a first water through hole (2); s2, compounding a non-woven fabric (3) on the inner side of the first outer bag body film (1); s3, water-absorbent resin (4) is placed on the non-woven fabric (3) or the second outer bag body film (5); s4, the second outer bag body film (5) and the first outer bag body film (1) with the non-woven fabric (3) are subjected to heat sealing to obtain an ice bag body, and the water-absorbent resin (4) is made to be in the ice bag body; and S5, the bag body obtained in the step S4 is cut, and the needed ice bag is obtained. According to the ice bags produced in the mode, the water absorption efficiency can be guaranteed, meanwhile, adhesion between the ice bags can be avoided, and the using effect of the ice bags is effectively improved.

Description

Technical Field

[0001] This invention relates to ice packs, and more specifically to an ice pack production method and an ice pack. Background Technology

[0002] Ice packs are widely used in various cooling applications. The traditional manufacturing process involves heat-sealing the sides of a non-woven fabric and a bag film together to form the bag body, and then filling the space between the non-woven fabric and the bag film with absorbent resin. In use, the ice pack is placed in water; water permeates through the non-woven fabric and enters the bag body. The absorbent resin absorbs the water and expands. Once the absorbent resin has absorbed sufficient water and expanded to the desired size, the ice pack is placed in a freezer to freeze. A drawback of this method is that when multiple ice packs are placed in a freezer and the non-woven fabric layers are in contact, the high permeability of the non-woven fabric can cause the layers to stick together during freezing, making it difficult to separate the ice packs later. Even when separated, the non-woven fabric is easily stretched and damaged, affecting the normal use of the ice pack. In addition, there is another type of ice pack on the market, which uses two bag films heat-sealed together to form an ice pack, and some very small micropores are made in the bag films so that water can enter the bag through the micropores and be absorbed by the absorbent resin. The drawback of this type of ice pack is that in order to prevent the absorbent resin from falling out, the micropores are very small, so the speed at which water enters the ice pack is also very slow, resulting in low water absorption efficiency and a poor user experience. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide an ice pack production method for solving the above-mentioned problems.

[0004] Therefore, the present invention is implemented using the following scheme: A method for producing ice packs, characterized by comprising the following steps: S1. The first outer bag membrane (1) is punched to obtain the first water passage hole (2); S2. Composite the nonwoven fabric (3) to the inside of the first outer bag film (1); S3. Place the absorbent resin (4) onto the nonwoven fabric (3) or the second outer bag film (5); S4. Heat seal the second outer bag film (5) with the first outer bag film (1) with non-woven fabric (3) to obtain an ice pack body, so that the absorbent resin (4) is inside the ice pack body; S5. Cut the bag obtained in step S4 to obtain the required ice pack.

[0005] The first water passage has multiple holes.

[0006] The second outer bag membrane is also perforated to obtain a second water passage hole, and the inner side of the second outer bag membrane is also laminated with non-woven fabric.

[0007] The nonwoven fabric is bonded to the inside of the first outer bag film by heat sealing.

[0008] An ice pack includes a first outer bag film and a second outer bag film, the first and second outer bag films are connected to form a bag body, the first outer bag film has a first water passage hole, the inner side of the first outer bag film is laminated with non-woven fabric, and the bag body is filled with water-absorbing resin.

[0009] The second outer bag membrane has a second water passage hole, and the inner side of the second outer bag membrane is also laminated with non-woven fabric.

[0010] One method for producing ice packs according to the above technical solution involves connecting the first and second outer bag films together to form a bag body. When multiple packaging bags are stacked in contact, the outer bag films are generally bonded together. Since no water seeps out from the outer bag films, it is ensured that the outer bag films will not freeze and stick together. After the ice packs are frozen, they can be easily taken out individually for use. In addition, by punching water holes in the outer bag films and laminating non-woven fabric on the inside of the outer bag films, water can enter the bag body through the water holes and non-woven fabric and be absorbed by the absorbent resin. At the same time, the presence of non-woven fabric ensures that the absorbent resin will not fall out, and the aperture of the water holes can be set to be relatively large, effectively ensuring the water absorption efficiency. Attached Figure Description

[0011] The present invention includes the following figures: Figure 1 This is a schematic diagram of the process flow of the present invention; Figure 2 This is a schematic diagram of the process flow when perforation and lamination of nonwoven fabric are performed on the first and second outer bag films of the present invention. Detailed Implementation

[0012] As shown in the figure, the ice pack production method disclosed in this invention is completed through the following steps: First, the first outer bag film 1 is punched to obtain the first water passage hole 2; then, non-woven fabric 3 is laminated to the inner side of the first outer bag film 1; then, absorbent resin 4 is placed on the non-woven fabric 3 or the second outer bag film 5; and the second outer bag film 5 is heat-sealed to the first outer bag film 1 to obtain the ice pack body, so that the absorbent resin 4 is inside the ice pack body. Finally, the desired ice pack is obtained by cutting. In the above steps, whether the absorbent resin 4 is placed on the non-woven fabric 3 or on the second outer bag 5, the result is the same: the absorbent resin 4 is ultimately sealed between the first outer bag 1 and the second outer bag 5.

[0013] Furthermore, the first water inlet 2 has multiple holes to ensure efficient water intake.

[0014] Furthermore, the second outer bag film 5 is also perforated to obtain a second water passage hole 6, and a non-woven fabric 3 is also laminated to the inner side of the second outer bag film 5. This method allows water to be absorbed from both sides of the bag, further improving the water absorption efficiency.

[0015] Furthermore, the nonwoven fabric 3 is bonded to the inner side of the first outer bag film 1 by heat sealing. Of course, in addition to heat sealing, hot melt adhesive bonding, ultrasonic bonding, and other methods can also be used.

[0016] An ice pack obtained by the above method includes a first outer bag film 1 and a second outer bag film 5. The first and second outer bag films are connected to form a bag body. The first outer bag film 1 has a first water passage hole 2. The inner side of the first outer bag film 1 is laminated with non-woven fabric 3. The bag body is filled with water-absorbing resin 4.

[0017] Furthermore, the second outer bag membrane 5 has a second water passage 6, and the inner side of the second outer bag membrane 5 is also laminated with non-woven fabric 3. This structure allows water to be absorbed from both sides of the bag, further improving the water absorption efficiency.

[0018] The ice pack produced by this invention involves connecting a first and a second outer bag film together to form the bag body. When multiple packaging bags are stacked in contact, the outer bag films are typically bonded together. Since no water seeps out from the outer bag films, this ensures that the outer bag films do not freeze and stick together. After freezing, the ice packs can be easily removed and used individually. Furthermore, by punching water holes in the outer bag films and laminating non-woven fabric to the inside of the outer bag films, water can enter the bag body through the water holes and the non-woven fabric and be fully absorbed by the absorbent resin. Simultaneously, the presence of the non-woven fabric ensures that the absorbent resin does not leak out, and the pore size of the water holes can be set relatively large, effectively ensuring water absorption efficiency. Ice packs produced using this method also reduce the damage rate during use, effectively saving on ice pack usage costs.

Claims

1. A method for producing ice packs, characterized in that... Includes the following steps: S1. The first outer bag membrane (1) is punched to obtain the first water passage hole (2); S2. Composite the nonwoven fabric (3) to the inside of the first outer bag film (1); S3. Place the absorbent resin (4) onto the nonwoven fabric (3) or the second outer bag film (5); S4. Heat seal the second outer bag film (5) with the first outer bag film (1) with non-woven fabric (3) to obtain an ice pack body, so that the absorbent resin (4) is inside the ice pack body; S5. Cut the bag obtained in step S4 to obtain the required ice pack.

2. The method for producing ice packs according to claim 1, characterized in that: The first water passage (2) has multiple holes.

3. The method for producing ice packs according to claim 1, characterized in that: The second outer bag membrane (5) is also punched to obtain the second water passage hole (6), and the inner side of the second outer bag membrane (5) is also laminated with non-woven fabric (3).

4. The method for producing ice packs according to claim 1, characterized in that: The nonwoven fabric (3) is bonded to the inside of the first outer bag film (1) by heat sealing.

5. An ice pack, characterized in that: It includes a first outer bag body film (1) and a second outer bag body film (5). The first and second outer bag body films are connected to form a bag body. The first outer bag body film (1) has a first water passage hole (2). The inner side of the first outer bag body film (1) is laminated with non-woven fabric (3). The bag body is filled with water-absorbing resin (4).

6. An ice pack according to claim 5, characterized in that: The second outer bag membrane (5) has a second water passage hole (6), and the inner side of the second outer bag membrane (5) is also laminated with non-woven fabric (3).

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