CN215852751U

CN215852751U - Heat-insulation bag

Info

Publication number: CN215852751U
Application number: CN202120955962.8U
Authority: CN
Inventors: 彭亮
Original assignee: Kunshan Wuihu Ice Bag Co ltd
Current assignee: Kunshan Wuihu Ice Bag Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-02-18
Anticipated expiration: 2031-05-07

Abstract

The utility model relates to the technical field of heat preservation, in particular to a heat preservation bag. The heat-preservation bag comprises a bag body, wherein a concave-convex sealing strip is arranged at the bag opening of the bag body, and the concave-convex sealing strip is positioned on the inner side surface of the bag opening of the bag body. The bag body is formed by folding composite materials in half and then thermally sealing two side edges. The composite material sequentially comprises the following structures from inside to outside: the heat-insulating layer, the heat-sealing layer, the printing ink layer and the printing base layer. The utility model has the beneficial effects that: the totally-enclosed structure is adopted, the sealing performance of the heat-insulating bag is guaranteed, the heat-insulating bag can be better isolated from the external environment, the loss of cold air or heat from the bag opening is prevented, and the heat-insulating performance is good. The printing is carried out on the inner side surface of the plastic base layer, so that the printing ink of the printing layer is not easy to fall off and can be kept for a long time. The integrated composite material can be used on a full-automatic production line, the manufacturing efficiency of the heat-insulating bag is improved, the consistency of the product quality can be ensured, and the heat-insulating bag is more durable.

Description

Heat-insulation bag

Technical Field

The utility model relates to the technical field of heat preservation, in particular to a heat preservation bag.

Background

With the increasing improvement of living standard of people, the quality requirements of living goods such as food, medicine and the like are higher and higher, so that the cold chain transportation technology is greatly developed, and the heat preservation bag is the most common related product with lower cost in daily life, especially in the take-out industry, and the usage amount of the heat preservation bag tends to rise year by year. However, most of the existing thermal bags adopt non-woven fabrics as the outermost layer material, and the non-woven fabrics have air permeability, so the thermal bags are poor in sealing performance and have no waterproof performance. Meanwhile, the mouth of the existing heat-insulating bag is often sealed by adopting double-sided adhesive tape, magic tape or a zipper, and the design can also cause the heat-insulating bag to lack good sealing performance.

In addition, the existing thermal insulation bag usually adopts a semi-automatic manufacturing mode, a double-layer plastic bag which is provided with an opening at the bottom and comprises an inner bag and an outer bag is manufactured by a machine, then thermal insulation materials are manually filled between the inner bag and the outer bag from the opening at the bottom, and finally the opening at the bottom of the plastic bag is thermally sealed. The manufacturing method has low efficiency, the product quality is greatly influenced by human factors, the consistency of the product quality is difficult to ensure, and the firmness of the heat-insulating bag is low because the heat-insulating material is not combined with the inner bag and the outer bag.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide the heat-preservation bag with a simpler production process.

The utility model discloses a heat preservation bag, which comprises a bag body and is characterized in that: the bag opening of the bag body is provided with a concave-convex seal which is positioned on the inner side surface of the bag opening of the bag body; the bag body is formed by folding composite materials in half and then thermally sealing two side edges.

The composite material sequentially comprises the following structures from inside to outside: the heat-insulating layer, the heat-sealing layer, the printing ink layer and the printing base layer.

The concave-convex seal is at least 4cm away from the bag opening.

The bag opening of the bag body is provided with a portable through hole above the concave-convex seal.

The length of the hand-held through hole is at least 5cm, and the width of the hand-held through hole is at least 1.5 cm.

And a plastic layer is additionally arranged on the inner side surface of the bag body of the heat-insulating layer.

And a reflective aluminum film layer is arranged between the heat sealing layer and the printing ink layer.

The opening of the bag body is above the concave-convex seal, and a protective layer is additionally arranged between the heat-insulating layer and the heat-sealing layer and used for enhancing the strength of a portable part.

The heat-insulating layer is made of pearl wool.

The utility model has the beneficial effects that: the totally-enclosed structure is adopted, the sealing performance of the heat-insulating bag is guaranteed, the heat-insulating bag can be better isolated from the external environment, the loss of cold air or heat from the bag opening is prevented, and the heat-insulating performance is good. The printing is carried out on the inner side surface of the plastic base layer, so that the printing ink of the printing layer is not easy to fall off and can be kept for a long time. The integrated composite material can be used on a full-automatic production line, the manufacturing efficiency of the heat-insulating bag is improved, the consistency of the product quality can be ensured, and the heat-insulating bag is more durable.

Drawings

FIG. 1: is a front view of the present invention;

FIG. 2: is a schematic structural view from the top in embodiment 1;

FIG. 3: is a partial enlarged view of fig. 2;

FIG. 4: is a schematic structural view from the top of the embodiment 2;

FIG. 5: is a partial enlarged view of fig. 2;

FIG. 6: is a schematic structural diagram in a top view of the embodiment 3;

FIG. 7: is a partial enlarged view of fig. 6;

FIG. 8: is a schematic top view structure of embodiment 4;

FIG. 9: a partial enlarged view of fig. 8.

Reference numerals: 1 bag body, 11 portable through holes, 12 composite materials, 121 heat preservation layers, 122 heat sealing layers, 123 printing ink layers, 124 printing base layers, 125 plastic layers, 126 light-reflecting aluminum film layers, 127 protection layers and 2 concave-convex sealing strips.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Example 1, as shown in FIGS. 1-3. The utility model relates to a heat preservation bag, which comprises a bag body 1 and a concave-convex seal 2. The concave-convex seal 2 is hot-pressed on the corresponding surface of the inner side of the bag body at high frequency, and the distance from the bag opening part is at least 4 cm. The middle of two corresponding surfaces of the bag opening above the concave-convex seal 2 is respectively provided with a hand-held through hole 11, the length of the hand-held through hole 11 is at least 5cm, and the width of the hand-held through hole 11 is at least 1.5 cm. The dimensions of the hand-hold through hole 11 are such as to ensure the total amount of the hand-hold to withstand.

The bag body 1 is formed by heat-sealing two side edges of the composite material 12 after being folded in half. The structure of the composite material 12 is as follows from inside to outside in sequence: an insulating layer 121, a heat seal layer 122, a printing ink layer 123 and a printing base layer 124.

The inner side surface of the printing base layer 124 is printed, and the heat sealing layer 122 is covered on the printing ink layer 123, so that the printing ink can be prevented from being rubbed and falling off in use, the printing ink layer 123 is not easy to fade, and the printed patterns can be kept for a long time. The heat preservation layer 121 is made of pearl wool, so that a buffering effect can be achieved, and the protection of articles in the bag body 1 is enhanced.

Example 2, as shown in FIGS. 4-5. The present embodiment is a further improvement on embodiment 1. In order to improve the heat preservation effect of the heat preservation bag and make the heat preservation layer 121 not easy to damage, a plastic layer 125 is additionally arranged on the inner side surface of the bag body 1 of the heat preservation layer 121. The structure of the composite material 12 is as follows from inside to outside in sequence: plastic layer 125, insulation layer 121, heat seal layer 122, printing ink layer 123 and printing base layer 124.

Example 3, as shown in FIGS. 6-7. In order to further improve the heat insulation performance, the embodiment is a further improvement on the basis of the embodiment 2. A reflective aluminum film layer 126 is disposed between the heat seal layer 122 and the printing ink layer 123.

Example 4, as shown in FIGS. 8-9. In order to strengthen the strength of the hand-held through hole, the bag mouth is firm when carrying heavy objects, and materials are saved, and the embodiment is a further improvement on the basis of the embodiment 3. And (3) independently reinforcing the area from the concave-convex seal 2 to the bag opening, wherein a protective layer 127 is arranged between the heat-insulating layer 121 and the heat-sealing layer 126 at the opening of the bag body 1 above the concave-convex seal 2.

Claims

1. The utility model provides an insulated bag, includes bag body (1), its characterized in that: the bag opening of the bag body (1) is provided with a concave-convex seal (2), and the concave-convex seal (2) is positioned on the inner side surface of the bag opening of the bag body (1); the bag body (1) is formed by folding the composite material (12) in half and then heat-sealing two side edges.

2. The thermal bag of claim 1, wherein: the structure of the composite material (12) is as follows from inside to outside in sequence: the heat-insulating layer (121), the heat-sealing layer (122), the printing ink layer (123) and the printing base layer (124).

3. The thermal bag of claim 1, wherein: the concave-convex seal (2) is at least 4cm away from the bag opening.

4. The thermal bag of claim 1, wherein: the bag opening of the bag body (1) is provided with a portable through hole (11) above the concave-convex seal (2).

5. The thermal bag of claim 4, wherein: the length of the hand-held through hole (11) is at least 5cm, and the width of the hand-held through hole (11) is at least 1.5 cm.

6. The thermal bag of claim 2, wherein: a plastic layer (125) is additionally arranged on the inner side surface of the bag body (1) of the heat-insulating layer (121).

7. The thermal bag of claim 2, wherein: and a reflective aluminum film layer (126) is arranged between the heat sealing layer (122) and the printing ink layer (123).

8. The thermal bag of claim 2, wherein: and a protective layer (127) is additionally arranged between the heat-insulating layer (121) and the heat-sealing layer 122 and is used for enhancing the strength of a handheld part.

9. The thermal bag of claim 2, wherein: the heat insulation layer (121) is made of pearl wool.