Non-woven fabric heat preservation bag

By introducing support columns and connecting columns into the non-woven bag, combined with laser film and insulation cotton layer, the problem of poor insulation of non-woven bags is solved, achieving better insulation effect and portability.

CN223715166UActive Publication Date: 2025-12-26浙江佳荣包装股份有限公司
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Patent Information

Application Number
CN202520296924.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-12-26
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing non-woven bags have poor heat retention and cannot effectively carry items that need to be kept warm, especially hot meals or cold drinks, which can easily lead to bacterial growth or food spoilage.

Method used

A non-woven insulated bag was designed, comprising an outer bag body, an inner bag body, supporting columns, connecting columns, and sealing components. An air layer is formed between the supporting columns and the inner bag body, which, combined with a laser film and an insulation cotton layer, improves the insulation effect. Velcro and zippers ensure airtightness.

Benefits of technology

It significantly improves the heat insulation performance of non-woven bags, reduces heat or cold air loss, enhances the practicality and portability of bags, and allows the inner bag body to be used alone when heat insulation is not needed, reducing weight and making it easy to carry.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of non-woven fabric bags, in particular to a non-woven fabric heat preservation bag which comprises an outer bag body, a sealing assembly and a heat preservation structure, the heat preservation structure comprises an inner bag body, a plurality of supporting stand columns, a plurality of connecting columns and a bonding assembly, and the inner bag body is arranged in the outer bag body; the supporting stand columns are fixed to the four corners of the inner bag body in an adhering mode through the adhering assemblies, and the connecting columns are fixedly connected to the inner bottom of the outer bag body. According to the non-woven fabric bag, the inner bag body and the outer bag body are separated through the supporting stand columns, an air layer is formed between the inner bag body and the outer bag body, heat or cold air transfer is greatly reduced, the heat preservation effect of the non-woven fabric bag is improved, when an object needing heat preservation is not carried, the inner bag body is separated from the outer bag body, the inner bag body is independently used, and the heat preservation effect is improved. Therefore, the weight of the non-woven fabric is reduced, the non-woven fabric is convenient for a user to carry and use, and meanwhile, the supporting upright posts play a role in supporting the inner bag body, so that the inner bag body has a self-standing effect when being placed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of non-woven fabric bags, in particular to a non-woven fabric thermal bag. BACKGROUND

[0002] Non-woven fabric bags are shopping bags made of non-woven fabric materials, widely used in daily life, such as shopping, activity promotion and gift packaging, etc. Non-woven fabric has the characteristics of lightness, durability, breathability and environmental protection, etc., and can be reused to reduce the use of disposable plastic bags. Non-woven fabric bags usually have a variety of colors, styles and sizes to choose from, and can be customized through printing, embroidery and other ways, suitable for enterprise brand promotion and the needs of various activities, therefore, more and more merchants and consumers choose to use non-woven fabric bags as an environmentally friendly alternative.

[0003] Referring to the Chinese patent application with publication number CN219962136U, a non-woven fabric bag is disclosed, including a cloth bag, an auxiliary bag is fixedly sewn on the side of the cloth bag, a groove is provided at the upper end of the auxiliary bag, a bottom plate is fixedly adhered to the lower end surface of the cloth bag, an anti-skid pad is fixedly adhered to the lower end surface of the bottom plate, a fixing piece is fixedly sewn on the side of the cloth bag, and a handle is fixedly sewn on the inner side of the fixing piece. The non-woven fabric bag can put shopping cards, membership cards or change into the auxiliary bag for quick taking by the user, improving convenience. The fixedly sewn fixing piece on the side of the cloth bag at both ends of the handle can improve the firmness of the end of the handle and prevent the end of the handle from breaking. The fixedly adhered bottom plate on the lower end surface of the cloth bag can increase the supporting performance of the bottom of the cloth bag and prevent the internal items from falling out due to the side tilting and falling after being placed. The fixed connection design of the reinforcing plate and the partition layer can increase the support of the bottom of the cloth bag and prevent the internal items from being pressed by each other due to the sagging of the bottom of the cloth bag.

[0004] However, the existing non-woven fabric bags usually have an open design and poor thermal insulation, which is not conducive to carrying items that need to be kept warm. At the same time, for food that needs to be kept at a certain temperature, such as hot meals or cold drinks, if they are placed in a non-woven fabric bag for a long time, bacteria may grow or the food may deteriorate, reducing the adaptability of the non-woven fabric bag. Therefore, we designed a non-woven fabric thermal bag. CONTENT OF THE UTILITY MODEL

[0005] The non-woven fabric thermal bag provided by the embodiments of the present application can solve the technical problem of poor thermal insulation of non-woven fabric bags, which is not conducive to carrying items that need to be kept warm.

[0006] The application provides a non-woven fabric heat preservation bag, which comprises an outer bag body, a sealing assembly and a heat preservation structure, the heat preservation structure comprises an inner bag body, a plurality of support columns, a plurality of connecting columns and a bonding assembly, the inner bag body is arranged in the inner part of the outer bag body, the plurality of support columns are fixedly attached to the four corners of the inner bag body through the bonding assembly, the plurality of connecting columns are fixedly connected to the inner bottom of the outer bag body, and the sealing assembly is used for sealing the opening of the outer bag body and the inner bag body.

[0007] The technical scheme has at least the following technical effects:

[0008] 1、The plurality of support columns are arranged to separate the inner bag body from the outer bag body, so that an air layer is formed between the inner bag body and the outer bag, heat or cold air is greatly reduced, the heat preservation effect of the non-woven fabric bag is improved, the laser film on the surface of the outer bag body and the heat preservation cotton layer on the inner wall of the inner bag body are matched, the heat preservation effect is further improved, the practicality of the non-woven fabric bag is improved, the first zipper strip, the second zipper strip and the zipper head are used to shield the opening of the outer bag body, the loss of heat or cold air is further reduced, the second magic tape female surface and the second magic tape male surface are used to bond the inner bag cover to shield the opening of the inner bag body, and the whole non-woven fabric bag has better heat preservation performance.

[0009] 2、The plurality of connecting columns are arranged in the inner bottom of the outer bag body, the plurality of connecting columns are slid in the connecting grooves at the bottoms of the plurality of support columns, when a user does not carry an object to be heat preserved, the connecting columns in the connecting grooves are pulled out, the inner bag body is separated from the outer bag body, and the inner bag body is used alone, so that the weight of the non-woven fabric bag is reduced, the user is convenient to carry and use, the support columns support the inner bag body, the inner bag body has a self-standing effect when the inner bag body is placed, and the user is convenient to take and place the object in the inner bag body.

[0010] In some embodiments, the bonding assembly comprises a plurality of first magic tape female surfaces and a plurality of first magic tape male surfaces, the plurality of first magic tape female surfaces are fixedly attached to the outer walls of the plurality of support columns respectively, the plurality of first magic tape male surfaces are fixedly attached to the four corners in the inner part of the outer bag body respectively, and the plurality of first magic tape female surfaces are fixedly attached to the plurality of first magic tape male surfaces respectively.

[0011] In some embodiments, the bottoms of the plurality of support columns are provided with connecting grooves, the plurality of connecting grooves correspond in size to the plurality of connecting columns, and the plurality of connecting columns are slid in the plurality of connecting grooves respectively.

[0012] In some embodiments, the sealing assembly comprises an outer bag cover, a first zipper strip, a second zipper strip, and a zipper head, the first zipper strip is fixedly installed at the outer periphery of the opening of the outer bag body, the second zipper strip is fixedly installed at the outer periphery of the bottom of the outer bag cover, the zipper head is slidably connected between the first zipper strip and the second zipper strip, and the outer bag cover is detachably connected to the top of the outer bag body through the first zipper strip, the second zipper strip, and the zipper head.

[0013] In some embodiments, a first handle is fixedly installed on the top surface of the outer bag cover, a laser film is fixedly attached to the outer wall of the outer bag body, and the outer bag body is made of non-woven fabric material.

[0014] In some embodiments, a heat insulation cotton layer is arranged on the inner wall of the inner bag body, an inner bag cover is arranged above the opening of the inner bag body, a plurality of second magic tape male faces are uniformly arranged on the outer wall of the inner bag body near the opening, a plurality of second magic tape female faces are uniformly arranged on the outer periphery of the inner bag cover, and the inner bag cover is fixedly attached to the opening of the inner bag body through the plurality of second magic tape female faces and the plurality of second magic tape male faces.

[0015] In some embodiments, the inner bag body is made of non-woven fabric material, a buffer pad is further arranged at the bottom of the inner bag body, and a second handle is fixedly installed on the top surface of the inner bag cover. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The overall structure of a non-woven fabric heat preservation bag according to an embodiment of the present application is shown in the figure.

[0018] Figure 2 The internal structure of an outer bag body of a non-woven fabric heat preservation bag according to an embodiment of the present application is shown in the figure.

[0019] Figure 3 The external structure of an inner bag body of a non-woven fabric heat preservation bag according to an embodiment of the present application is shown in the figure.

[0020] Figure 4 A cross-sectional view of a non-woven fabric heat preservation bag according to an embodiment of the present application is shown in the figure.

[0021] Figure 5 A top view of a non-woven fabric heat preservation bag according to an embodiment of the present application after removing the cover is shown in the figure.

[0022] Wherein, the reference signs in the drawings: 1, the outer bag body; 2, sealing assembly; 21, outer bag cover; 22, first zipper strip; 23, second zipper strip; 24, zipper head; 3, heat preservation structure; 31, inner bag body; 32, support column; 33, connecting column; 34, adhesive assembly; 341, first magic tape female face; 342, first magic tape male face; 4, connecting groove; 5, first handle; 6, laser film; 7, heat preservation cotton layer; 8, inner bag cover; 9, second magic tape female face; 10, second magic tape male face; 11, buffer pad; 12, second handle. DETAILED DESCRIPTION

[0023] Based on this, in order to improve the problem that the non-woven fabric bag in the related art usually adopts an opening design and has poor heat preservation itself, which is not conducive to people carrying items that need to be kept warm, and at the same time, for food that needs to be kept at a temperature, such as hot meals or cold drinks, if placed in a non-woven fabric bag for a long time, bacteria may breed or the food may deteriorate, reducing the adaptability of the non-woven fabric bag, the embodiments of the present application provide the following solutions.

[0024] Please refer to Figures 1 to 5 A non-woven fabric heat preservation bag includes an outer bag body 1, a sealing assembly 2 and a heat preservation structure 3, the outer bag body 1 is used to support and protect the inner bag body 31 and strengthen the overall heat preservation effect, the sealing assembly 2 is used to seal the opening of the outer bag body 1 and the inner bag body 31, and the heat preservation structure 3 is used to further improve the heat preservation effect of the non-woven fabric bag.

[0025] Please refer to Figures 1 to 5The heat preservation structure 3 comprises an inner bag body 31, a plurality of support columns 32, a plurality of connecting columns 33 and a bonding assembly 34, the inner bag body 31 is arranged inside the outer bag body 1, the plurality of support columns 32 are fixedly attached to four corners of the inner bag body 31 through the bonding assembly 34, the plurality of connecting columns 33 are fixedly connected to the inner bottom of the outer bag body 1, the bonding assembly 34 comprises a plurality of first magic tape female faces 341 and a plurality of first magic tape male faces 342, the plurality of first magic tape female faces 341 are fixedly attached to outer walls of the plurality of support columns 32 respectively, the plurality of first magic tape male faces 342 are fixedly attached to four corners inside the outer bag body 1 respectively, a heat preservation cotton layer 7 is arranged on an inner wall of the inner bag body 31, an inner bag cover 8 is arranged above an opening of the inner bag body 31, a plurality of second magic tape male faces 9 are uniformly arranged on an outer periphery of the inner bag cover 8, and the inner bag cover 8 is fixedly attached to the opening of the inner bag body 31 through the plurality of second magic tape male faces 9 and the plurality of second magic tape female faces 10, and a connecting groove 4 is arranged at the bottom of each of the plurality of support columns 32, the plurality of connecting grooves 4 correspond in size to the plurality of connecting columns 33, and the plurality of connecting columns 33 are slidingly connected in the plurality of connecting grooves 4 respectively.

[0026] In this way, when the non-woven fabric heat preservation bag is used, the inner bag body 31 is first placed inside the outer bag body 1, the connecting grooves 4 on the support columns 32 are respectively inserted into the connecting columns 33 on the inner bottom of the outer bag body 1, then the first magic tape female faces 341 arranged on the support columns 32 are attached to the magic tape male faces arranged on the four corners inside the outer bag body 1, so that the inner bag body 31 is fixed inside the outer bag body 1, then the items or food that need to be carried and preserved are placed in the inner heat preservation bag, at this time, the second magic tape female faces 9 are attached to the second magic tape male faces, so that the opening end of the inner bag is shielded and sealed by the inner bag cover 8;

[0027] In this way, the inner bag body 31 is separated from the outer bag body 1 by arranging the plurality of support columns 32, so that an air layer is formed between the inner bag body 31 and the outer bag, which greatly reduces the transmission of heat or cold air and increases the heat preservation effect of the non-woven fabric bag, and the opening of the inner bag body 31 is shielded by the inner bag cover 8 through the attachment of the second magic tape female faces 9 and the second magic tape male faces 10, so that the overall heat preservation performance of the non-woven fabric bag is better.

[0028] Please refer to Figures 1 to 4The sealing assembly 2 comprises an outer bag cover 21, a first zipper strip 22, a second zipper strip 23 and a zipper head 24. The first zipper strip 22 is fixedly installed at the outer periphery of the opening of the outer bag body 1. The second zipper strip 23 is fixedly installed at the outer periphery of the bottom of the outer bag cover 21. The zipper head 24 is slidably connected between the first zipper strip 22 and the second zipper strip 23. The outer bag cover 21 is detachably connected to the top of the outer bag body 1 through the first zipper strip 22, the second zipper strip 23 and the zipper head 24. The first handle 5 is fixedly installed on the top surface of the outer bag cover 21. The inner bag body 31 is made of non-woven fabric material. The second handle 12 is fixedly installed on the top surface of the inner bag cover 8.

[0029] When the food or articles that need to be kept warm are placed in the inner bag body 31 and sealed, the zipper head 24 arranged between the first zipper strip 22 and the second zipper strip 23 is pulled, so that the outer bag cover 21 arranged above the outer bag body 1 covers and seals the opening of the outer bag body 1, and then the packaging and carrying of the articles or food are completed.

[0030] The effect of this arrangement is that the first zipper strip 22, the second zipper strip 23 and the zipper head 24 cover the opening of the outer bag body 1, further reducing the loss of heat or cold air, and the first handle 5 on the outer bag cover 21 is convenient for users to carry.

[0031] Please refer to Figure 3 and Figure 4 When the user does not carry the articles or food that need to be kept warm, the first magic tape and the second magic tape are first separated, then the inner bag body 31 is lifted out of the outer bag body 1 by holding the second handle, the connecting column 33 is pulled out of the connecting groove 4, then the articles to be carried are placed in the inner bag body 31, and the second magic tape female face 9 and the second magic tape male face 10 are adhered to seal the opening of the inner bag body 31. At this time, the inner bag body 31 is lifted and carried by the second handle 12.

[0032] The effect of this arrangement is that the plurality of connecting columns 33 are arranged in the inner bottom of the outer bag body 1, and the plurality of connecting columns 33 slide in the connecting grooves 4 opened at the bottom of the plurality of supporting columns 32. When the user does not carry the articles that need to be kept warm, the connecting column 33 in the connecting groove 4 can be pulled out, so that the inner bag body 31 is separated from the outer bag body 1, and the inner bag body 31 is used alone, thereby reducing the weight of the non-woven fabric and facilitating the user to carry and use. At the same time, the supporting column 32 supports the inner bag body 31, so that the inner bag body 31 has the effect of standing alone when placed, thereby facilitating the user to take and place the articles in the inner bag body 31.

[0033] Optionally, a laser film 6 is adhered and fixed to the outer wall of the outer bag body 1.

[0034] In this way, the non-woven fabric heat preservation bag can be prevented from being physically damaged, scratched or wet during transportation and use, so as to affect the heat preservation effect and service life.

[0035] Optionally, the inner bag body 31 is further provided with a buffer pad 11, and the inner wall of the inner bag body 31 is provided with a heat preservation cotton layer 7.

[0036] The heat preservation cotton layer 7 can further improve the heat preservation effect, and the buffer pad 11 can improve the practicality of the inner bag body 31 when used alone by providing the bottom of the inner bag body 31 with a shock absorption effect.

[0037] From the above, the working principle of the present application is as follows:

[0038] When the non-woven fabric heat preservation bag is used, the inner bag body 31 is placed inside the outer bag body 1, the connecting grooves 4 on the support columns 32 are respectively inserted into the connecting columns 33 on the inner bottom of the outer bag body 1, then the first magic tape female face 341 provided on the support columns 32 is adhered to the magic tape male face provided on the four corners inside the outer bag body 1, so that the inner bag body 31 is fixed inside the outer bag body 1, then the food or articles that need to be carried and preserved are placed in the inner heat preservation bag, at this time, the second magic tape female face 9 is adhered to the second magic tape male face, so that the inner bag cover 8 covers and seals the opening end of the inner bag;

[0039] When the food or articles that need to be preserved are placed in the inner bag body 31 and sealed, the zipper head 24 provided between the first zipper strip 22 and the second zipper strip 23 is pulled, so that the outer bag cover 21 provided above the outer bag body 1 covers and seals the opening of the outer bag body 1, then the packaging and carrying of the articles or food are completed;

[0040] When the user does not carry the articles or food that need to be preserved, the first magic tape and the second magic tape are first separated, then the inner bag body 31 is lifted out of the outer bag body 1 by holding the second handle with the hand, so that the connecting columns 33 are pulled out of the connecting grooves 4, then the articles to be carried are loaded into the inner bag body 31, and the second magic tape female face 9 is adhered to the second magic tape male face 10 to seal the opening of the inner bag body 31, at this time, the inner bag body 31 is lifted and carried by the second handle 12.

[0041] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A nonwoven fabric thermal bag, characterized by, The utility model provides a heat -preserving bag, including outer bag body (1), sealing assembly (2) and heat -preserving structure (3), the heat -preserving structure (3) includes inner bag body (31), a plurality of support columns (32), a plurality of connecting columns (33) and bonding assembly (34), the inner bag body (31) sets up inside the outer bag body (1), a plurality of support columns (32) are pasted fixed in four corners of inner bag body (31) through bonding assembly (34), a plurality of connecting columns (33) are fixedly connected in the inner bottom of outer bag body (1), and sealing assembly (2) is used to seal the opening of outer bag body (1) and inner bag body (31).

2. The nonwoven insulation bag of claim 1, wherein, The bonding assembly (34) includes a plurality of first magic tape female faces (341) and a plurality of first magic tape male faces (342), the plurality of first magic tape female faces (341) are respectively bonded and fixed on the outer walls of the plurality of support columns (32), and the plurality of first magic tape male faces (342) are respectively bonded and fixed on the four corners inside the plurality of outer bag bodies (1). Wherein, the plurality of first magic tape female faces (341) are respectively bonded and fixed corresponding to the plurality of first magic tape male faces (342).

3. The nonwoven insulation bag of claim 2, wherein, The bottoms of the plurality of support columns (32) are each provided with a connecting groove (4), the plurality of connecting grooves (4) correspond in size to the plurality of connecting columns (33), and the plurality of connecting columns (33) are respectively slidably connected in the plurality of connecting grooves (4).

4. The nonwoven insulation bag of claim 1, wherein, The sealing assembly (2) includes an outer bag cover (21), a first zipper strip (22), a second zipper strip (23), and a zipper head (24), the first zipper strip (22) is fixedly installed on the outer periphery of the opening of the outer bag body (1), the second zipper strip (23) is fixedly installed on the outer periphery of the bottom of the outer bag cover (21), the zipper head (24) is slidably connected between the first zipper strip (22) and the second zipper strip (23), and the outer bag cover (21) is detachably connected to the top of the outer bag body (1) through the first zipper strip (22), the second zipper strip (23), and the zipper head (24).

5. The nonwoven insulation bag of claim 4, wherein, The top surface of the outer bag cover (21) is fixedly installed with a first handle (5), the outer wall of the outer bag body (1) is bonded and fixed with a laser film (6), and the outer bag body (1) is made of non-woven fabric material.

6. The nonwoven insulation bag of claim 1, wherein, The inner wall of the inner bag body (31) is provided with a heat preservation cotton layer (7), the top of the opening of the inner bag body (31) is provided with an inner bag cover (8), the outer wall of the inner bag body (31) is uniformly provided with a plurality of second magic tape male faces (10) near the opening, the outer periphery of the inner bag cover (8) is uniformly provided with a plurality of second magic tape female faces (9), and the inner bag cover (8) is bonded and fixed to the opening of the inner bag body (31) through the plurality of second magic tape female faces (9) and the plurality of second magic tape male faces (10).

7. The nonwoven insulation bag of claim 6, wherein, The inner bag body (31) is made of non-woven fabric material, and the bottom of the inner bag body (31) is further provided with a buffer pad (11), and the top surface of the inner bag cover (8) is fixedly installed with a second handle (12).

Citation Information

Patent Citations

  • Non-woven bag

    CN219962136U