Nonwoven fabric bag

By incorporating absorbent sheets and aluminum foil linings into non-woven bags, the problems of slipperiness and heat preservation when holding hot food or cold drinks are solved, achieving convenient moisture management and space saving.

CN224546813UActive Publication Date: 2026-07-24江苏优派克包装科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏优派克包装科技有限公司
Filing Date
2025-09-16
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing non-woven bags are prone to moisture loss or condensation when containing food at high or low temperatures, resulting in a slippery interior that affects the user experience and insulation performance.

Method used

Absorbent pads are installed at the connection between the flap and the opening of the non-woven bag. Combined with the aluminum foil lining and the bottom absorbent pads, the absorbent pads can be quickly replaced via the easy-tear seam, ensuring concentrated absorption of moisture and preventing diffusion. The bag body is designed with storage creases for easy folding and storage.

Benefits of technology

It effectively absorbs moisture or condensation from food, keeping the inside of the bag dry and improving the user experience. The aluminum foil lining maintains its heat retention properties while also making the bag easy to fold and store.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of non-woven bag, comprising: three edges enclose bag body, top is equipped with with the opening of the communication of accommodating cavity, and the flip of integrally connected in the front side of opening and extend backward, the flip is detachably connected to the other side of opening by solid glue, and set up water-absorbing sheet between the connecting place of flip and opening and solid glue. The flip is inserted into the top of accommodating cavity by continuous folding edge, the inside of bag body is equipped with aluminium foil lining, both sides are equipped with hand ring, water-absorbing sheet is with easy tear line, bottom is pasted with water-absorbing sheet, solid glue is double-sided adhesive, and bag body is preset storage crease. Water-absorbing sheet effectively adsorbs water vapor, prevents wet and slippery in bag and keeps heat preservation performance;Easy tear line and storage crease improve user convenience, realize water-absorbing sheet easy replacement and bag easy folding;Aluminium foil lining enhances heat insulation, while overall structure is simple and reliable, promote environmental protection use.
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Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a non-woven bag. Background Technology

[0002] Non-woven bags (also known as non-woven fabric bags) are currently a green product made from non-woven fabric. They are characterized by their toughness, durability, and attractive appearance. They are reusable, washable, and can be screen-printed with advertisements, with a long service life. Their raw materials are mainly polyethylene (PE) or polypropylene (PP), which are produced through polymer chips, short fibers, or filaments forming and consolidating webs using fiber web technology. This eliminates the need for traditional textile processes, resulting in a shorter process, faster production speed, and lower cost.

[0003] In the food delivery packaging sector, non-woven bags are gradually replacing disposable plastic bags due to their reusability and the ability to be printed with shop logos for advertising. This reduces environmental pollution and enhances brand exposure, making them popular in the market. However, when using existing non-woven bags to hold fast food, the heat dissipation from hot food causes moisture to accumulate inside the bag, while cold drinks cause condensation, making the inside of the bag slippery and affecting the consumer experience. Adding vents to the surface of the non-woven bag would compromise its insulation performance. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a non-woven bag that can absorb or contain moisture generated by food.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A non-woven bag includes a bag body with three sides connected together and configured to have an opening at the top that communicates with an inner receiving cavity. The bag body has a flap integrally connected to the front side of the opening and extending to the rear side to cover the opening. The flap is detachably connected to the other side of the opening by solid glue. An absorbent sheet is provided on the inner wall between the connection between the flap and the opening and the solid glue.

[0006] As a preferred technical solution, the flap extends into the inside of the bag body through two continuous folds and extends into the top of the receiving cavity, and the solid adhesive is disposed between the two continuous folds.

[0007] As a preferred technical solution, the inner side of the bag is provided with an aluminum foil lining.

[0008] As a preferred technical solution, the bag body is also provided with handles on both sides.

[0009] As a preferred technical solution, the absorbent sheet is pre-compressed and has an easy-tear line, which is located at the connection between the absorbent sheet and the flip cover.

[0010] As a preferred technical solution, an absorbent sheet is attached to the bottom inner side of the bag.

[0011] As a preferred technical solution, the absorbent sheet is made of sponge, and the solid adhesive is double-sided adhesive.

[0012] As a preferred technical solution, the double-sided adhesive includes an adhesive layer and a release paper, wherein the length and / or width of the release paper is greater than the length and / or width of the corresponding adhesive layer, and at least one end of the release paper extends beyond the adhesive layer.

[0013] As a preferred technical solution, the left and right sides and bottom of the bag are pre-pressed with storage creases.

[0014] The advantages and beneficial effects of this utility model are as follows: An absorbent sheet is provided at the connection between the flap and the opening of the bag, which can directly absorb moisture generated by the heat dissipation of food or condensation caused by cold drinks. This avoids the problem of a slippery inside the bag, and at the same time, there is no need to open a vent, thus maintaining the heat insulation performance of the bag.

[0015] The absorbent pad is located at the connection between the flap and the opening, and can be fixed by ultrasound or adhesive. The absorbent pad concentrates moisture and prevents moisture from spreading throughout the bag. The bottom of the bag is also attached to an absorbent pad to deal with different scenarios (such as hot food or cold drinks). The absorbent pad is pre-pressed with an easy-tear line, which makes it easy for users to quickly remove the saturated absorbent pad. It can also be torn off and used as a handkerchief to wipe the food packaging.

[0016] The bag has pre-pressed storage creases on the left, right, and bottom sides, allowing it to be folded for storage and saving space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure label: 1-Bag body; 2-Containing cavity; 3-Opening; 4-Flap; 5-Solid glue; 6-Absorbent sheet; 7-Aluminum foil lining; 8-Handle loop; 9-Easy tear line; 10-Adhesive layer; 11-Release paper; 12-Storage crease. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining the present invention and not for limiting the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not all structures. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in multiple places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly or implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] This invention relates to the field of packaging technology, specifically to an improved non-woven bag. It should be noted that the technical solution described in this specific embodiment can be applied to food preservation, daily necessities carrying, and other fields, and is particularly suitable for scenarios requiring moisture protection, easy opening, and portable storage. Existing non-woven bags, when used for items with high humidity (such as hot food or cold drinks), allow moisture to easily diffuse throughout the bag, leading to dampness or packaging damage; simultaneously, traditional bags lack a convenient folding mechanism, occupy a large space when stored, and are inconvenient for users.

[0021] Please see Figures 1-2 In some embodiments, the nonwoven bag includes a bag body 1 made of nonwoven fabric, with an internal cavity 2 for holding items. The top surface of the bag body 1 has an opening 3 for taking items in and out. A flap 4 is connected to the opening 3, and the flap 4 is fixed to the bag body 1 by solid glue 5 or ultrasonic welding to ensure a tight seal. When the flap 4 is closed, it covers the opening 3, forming a sealed space.

[0022] The absorbent plate 6 is located at the connection between the flip cover 4 and the opening 3 and is fixed by ultrasonic or adhesive methods. This design can concentrate the moisture generated by the items and prevent moisture from spreading to the entire containment cavity 2, thus avoiding the items from getting damp.

[0023] To ensure applicability in various scenarios, another absorbent pad 6 is attached to the bottom of the bag body 1, forming a double-layer moisture barrier. The surface of the absorbent pad 6 is pre-pressed with an easy-tear line 9, which allows users to quickly tear off and remove the pad after it becomes saturated. The removed absorbent pad can be used as a handkerchief to wipe the packaging or items.

[0024] The easy-tear line 9 optimizes the opening process. Users can quickly separate the absorbent sheet 9 by simply tearing along the easy-tear line 9 without the need for tools, thus improving the convenience of single use.

[0025] The bag body 1 has pre-pressed storage creases 12 on the left, right, and bottom sides. This crease design allows the bag to be folded into a compact shape for storage, saving space. When in use, users, especially fast food businesses, can simply unfold the bag to restore it to its original shape.

[0026] In some embodiments, the aluminum foil liner 7 is fitted inside the bag body 1 to enhance insulation and impermeability, making it suitable for temperature-sensitive items.

[0027] In some embodiments, a carrying handle 8 is provided at the top of the bag body 1 for easy carrying.

[0028] In some embodiments, the double-sided tape includes an adhesive layer 10 and a release liner 11, which is located at the edge of the flap 4 for temporarily sealing the opening 3. After the user tears off the release liner 11, the flap 4 is bonded and fixed by the adhesive layer 10 to ensure repeatable sealing capability.

[0029] The non-woven bag of this invention absorbs moisture through the absorbent pad 6, and the easy-tear line 9 allows for quick removal, preventing moisture accumulation from affecting the internal environment of the bag; the aluminum foil lining 7 provides an additional barrier. When the user opens the flap 4, the absorbent pad 6 is torn off along the easy-tear line 9 to remove moisture. After the items are placed in the receiving cavity 2, the flap 4 is closed, and the area of ​​the release paper 11 is sealed using the adhesive layer 10. For use or storage before use, the bag body 1 can be folded along the storage crease 12 for easy storage.

[0030] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A non-woven bag, characterized in that, The bag (1) is composed of three sides connected together and has an opening (3) at the top that communicates with the inner cavity (2). The bag (1) is integrally connected to the front side of the opening (3) and extends to the rear side to provide a flap (4) that can cover the opening (3). The flap (4) is detachably connected to the other side of the opening (3) by solid glue (5). An absorbent sheet (6) is provided on the inner wall between the connection between the flap (4) and the opening (3) and the solid glue (5).

2. The nonwoven bag according to claim 1, characterized in that, The flap (4) extends into the inside of the bag body (1) and into the top of the receiving cavity (2) through two continuous folds, and the solid adhesive (5) is disposed between the two continuous folds.

3. The nonwoven bag according to claim 2, characterized in that, An aluminum foil lining (7) is provided on the inside of the bag body (1).

4. The nonwoven bag according to claim 2, characterized in that, The bag body (1) is also provided with handles (8) on both sides.

5. The nonwoven bag according to claim 1, characterized in that, The absorbent sheet (6) is pre-pressed and has an easy-tear line (9) set at the connection between the absorbent sheet (6) and the flip cover (4).

6. The nonwoven bag according to claim 1, characterized in that, The bottom inner side of the bag (1) is fitted with an absorbent sheet (6).

7. The nonwoven bag according to claim 6, characterized in that, The absorbent sheet (6) is made of sponge, and the solid adhesive (5) is double-sided adhesive.

8. The nonwoven bag according to claim 7, characterized in that, The double-sided adhesive includes an adhesive layer (10) and a release paper (11), wherein the length and / or width of the release paper (11) is greater than the length and / or width of the corresponding adhesive layer (10), and at least one end of the release paper (11) extends beyond the adhesive layer (10).

9. The nonwoven bag according to any one of claims 1-8, characterized in that, The left and right sides and bottom of the bag (1) are pre-pressed with storage creases (12).