Special pressure-proof and moisture-proof bag for flue-cured tobacco leaves

By designing pressure-resistant and moisture-proof bags, the problem of damage to tobacco leaves caused by compression and moisture during storage and transportation has been solved, achieving efficient protection and long-term preservation of tobacco leaves.

CN224029659UActive Publication Date: 2026-03-24CHINA TOBACCO HEBEI INDUSTRIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing tobacco packaging bags are prone to damage from compression, have insufficient waterproof and moisture-proof properties, and affect the quality and shelf life of tobacco leaves.

Method used

Design a pressure-proof and moisture-proof bag that includes a transparent bag body, an airtight zipper, a one-way valve, multiple layers of spacer film, and a drawstring. Through the combination of zipper sealing, one-way valve venting, layered storage, and TPU material, the bag body is ensured to be airtight and moisture-proof, protecting the tobacco leaves from damage.

Benefits of technology

It improves the waterproof and moisture-proof properties of tobacco leaves, avoids oxidation and crush damage, extends shelf life, and improves storage management efficiency and the integrity of tobacco leaves.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tobacco leaf storage and packaging, in particular to a special pressure-proof and moisture-proof bag for flue-cured tobacco leaves, which comprises a transparent bag body, a zipper is arranged on one side of the bag body, a one-way valve is arranged on the front side of the bag body and used for exhausting air in the bag body, a plurality of interlayer films are arranged in the bag body, and the interlayer films are communicated with the zipper. A plurality of leaf storage layers are formed so that tobacco leaves can be stored independently, damage caused by mutual extrusion and friction between the tobacco leaves is avoided, a clamping groove is formed in the front face of the bag body and used for allowing an information card to be inserted, and a pull rope is arranged on one side of the bag body. The pressure-proof and moisture-proof bag special for the flue-cured tobacco leaves is reasonable in design, the tobacco leaves can be effectively protected, and the storage life is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco leaf storage and packaging technical field especially, a kind of special anti-pressing and moisture-proof bag for primary curing tobacco leaf. BACKGROUND

[0002] In the storage and transportation of tobacco leaf, it is crucial to ensure the quality of tobacco leaf. At present, the existing tobacco leaf packaging method on the market has many problems:

[0003] On the one hand, the existing bag body can cause too much tobacco leaf, too large storage space, so that the tobacco leaf moves in the bag body, and is easily squeezed or rubbed by each other; on the other hand, the existing bag body does not have good waterproof and moisture-proof performance, and the tobacco leaf is easy to be damp and mildew, which shortens the shelf life. At the same time, the existing bag body structure design is not scientific enough, for example, it is inconvenient to put in and take out, and the tobacco leaf is oxidized due to the air in the bag body cannot be effectively discharged, which brings great trouble to the storage and management of tobacco leaf.

[0004] Therefore, there is an urgent need for a special anti-pressing and moisture-proof bag for primary curing tobacco leaf to solve the above problems. SUMMARY

[0005] The utility model aims at the deficiency of prior art, develops a kind of special anti-pressing and moisture-proof bag for primary curing tobacco leaf, to solve the problems of insufficient waterproof and moisture-proof performance of existing tobacco leaf packaging bag and easy damage of tobacco leaf, ensure the quality of tobacco leaf in the storage and transportation process, and prolong its shelf life.

[0006] The technical scheme for solving the technical problem of the utility model is as follows:

[0007] The present application provides a kind of special anti-pressing and moisture-proof bag for primary curing tobacco leaf, including transparent bag body, the one side of bag body is provided with zipper, the front of bag body is provided with one-way valve, for discharging the air in bag body, multiple layers of interval film are provided in bag body, to form multiple layers of tobacco storage layer, the front of bag body is provided with clamping groove, for inserting information card, one side of bag body is provided with pull rope.

[0008] As an improvement of the above scheme, the length of the bag body is 850-1000mm, and the width is 350-450mm.

[0009] As an improvement of the above scheme, the bag body and the interval film are both made of TPU material.

[0010] As an improvement of the above scheme, the zipper is airtight zipper.

[0011] As an improvement of the above scheme, the zipper is replaced by a self-sealing strip.

[0012] As an improvement of the above scheme, the interval film is provided with an elastic support strip.

[0013] As an improvement of the above scheme, the elastic support strip is in a wavy or arc shape.

[0014] Compared with the prior art, the above scheme has the following advantages or beneficial effects:

[0015] The application provides a special anti-pressing and anti-moisture bag for primary cured tobacco leaves, which improves the waterproof and moisture-proof performance of the tobacco leaves by the cooperation of the zipper and the bag body, avoids the rapid oxidation of the tobacco leaves by the one-way valve, and avoids the damage of the tobacco leaves caused by friction and extrusion by the cooperation of the one-way valve and the layered design. The special anti-pressing and anti-moisture bag for primary cured tobacco leaves is reasonable in design, can effectively protect the tobacco leaves, and prolong the shelf life. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present application, constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application.

[0017] Figure 1 is a structure diagram of the special anti-pressing and anti-moisture bag for primary cured tobacco leaves in the embodiment 1. Figure 1 .

[0018] Figure 2 is a structure diagram of the special anti-pressing and anti-moisture bag for primary cured tobacco leaves in the embodiment 1. Figure 2 .

[0019] Figure 3 is a structure diagram of the special anti-pressing and anti-moisture bag for primary cured tobacco leaves in the embodiment 2.

[0020] In the figure, 1 is a bag body, 2 is a zipper, 3 is a one-way valve, 4 is a spacing film, 5 is a clamping groove, 6 is an information card, 7 is a pull rope, 8 is a self-sealing strip, 81 is a chain tooth, 82 is a pull head, and 9 is an elastic support strip. DETAILED DESCRIPTION

[0021] In order to clearly illustrate the technical features of the scheme, the utility model will be described in detail below through specific embodiments and in conjunction with its accompanying drawings. The following disclosure provides many different embodiments or examples to implement different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can refer to the same number and / or letter in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing techniques and processes to avoid unnecessary limitations on the utility model. The orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] Embodiment 1

[0023] Referring to Figure 1 and 2 , the embodiment provides a special anti-pressing and anti-moisture bag for primary curing tobacco leaves, which comprises a bag body 1, the length of the bag body 1 is 850-1000mm, the width is 350-450mm, preferably the length is 900mm, and the width is 400mm. In actual use, the size range of the waist leaf of Yunyan 87 is 730-820mm, and the width is 282mm-340mm. The size of Honghuadajinyuan is 600-700mm, and the width is 250-350mm. The size design can adapt to different varieties and specifications of tobacco leaves, ensure that the tobacco leaves have enough space in the bag body 1, avoid damage to the tobacco leaves due to extrusion, and facilitate the loading, taking and storage of the tobacco leaves, which is beneficial to maintaining the integrity of the tobacco leaves and ensuring the quality of the tobacco leaves for rolling and smoking.

[0024] The top end of the bag 1 is provided with a gas-tight zipper 2, which makes it very convenient to put in and take out the tobacco leaves, and the zipper 2 can be tightly closed, further enhancing the sealing of the bag, preventing moisture from entering.

[0025] The front of the bag 1 is provided with two one-way valves 3 for discharging air in the bag 1, preventing the tobacco leaves from regaining moisture and oxidizing due to air stagnation in the bag 1. In addition, discharging air can also reduce the space in the bag 1, making the tobacco leaves more compact in the bag 1, avoiding damage to the tobacco leaves due to movement in the bag 1, and further prolonging the storage period of the tobacco leaves.

[0026] The bag 1 is provided with multiple layers of spacing films 4, forming multiple layers of tobacco storage layers, and each layer of tobacco storage layer can hold a piece of tobacco leaf. This layered design can protect each piece of tobacco leaf independently, avoid mutual pressing and friction between the tobacco leaves, and ensure the integrity and quality of each piece of tobacco leaf.

[0027] The front of the bag 1 is provided with a card slot 5 for inserting an information card 6, which can write important information such as tobacco variety, part, and production area, facilitating classification management and traceability of the tobacco leaves, and improving the efficiency and accuracy of tobacco storage management.

[0028] One side of the bag 1 is provided with a drawstring 7 for easy taking and hanging. The width of the drawstring 7 is 10mm, which is comfortable and convenient when taking out, and the position of the drawstring 7 (below the zipper 2) is thickened to ensure the firmness of the bag 1 and the drawstring 7.

[0029] The bag 1 and the spacing film 4 are both transparent and made of TPU material, which is cheap and durable, can reduce production cost, has high transparency, and is convenient for checking the condition of the tobacco leaves in the bag 1, without the need to open the bag to make preliminary observation and management of the tobacco leaves. In addition, TPU material also has good waterproof and moisture-proof performance, which can effectively block external moisture from entering the bag 1, providing a dry storage environment for the tobacco leaves, preventing the tobacco leaves from being moldy due to moisture, and thus prolonging the storage period of the tobacco leaves.

[0030] Example 2

[0031] The content of this embodiment is basically the same as that of the above-mentioned Example 1, the difference is that:

[0032] Firstly, referring to Figure 3 the zipper 2 in the above-mentioned Example 1 is replaced by a zipper-type self-sealing strip 8. The self-sealing strip 8 includes two interlocking chain teeth 81 and a pull head 82, which makes the two chain teeth 81 accurately engage or separate each other through the pull head 82, not only enhancing the sealing of the bag 1, but also improving the moisture-proof and dust-proof effect of the tobacco leaves during storage, thereby effectively improving the storage quality of the tobacco leaves.

[0033] Secondly, the elastic supporting strip 9 is arranged on the interval film 4. The elastic supporting strip 9 is made of high-strength plastic material, and the elastic supporting strip 9 is in a wavy shape or an arc shape. When the bag is subjected to external pressure, the elastic supporting strip 9 can effectively disperse the pressure, avoid the tobacco being directly pressed, further enhance the protection of the tobacco, and prevent the tobacco from being broken due to extrusion.

[0034] Although the specific embodiments of the utility model are described in combination with the drawings, the description is not a limitation on the protection scope of the utility model. Various modifications or changes made by those skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A pressure-resistant and moisture-proof bag specifically for first-cured tobacco leaves, characterized in that: The bag includes a transparent bag body with a zipper on one side and a one-way valve on the front for venting air from the bag body. The bag body contains multiple layers of spacer membranes to form multiple leaf storage layers. The front of the bag body has a card slot for inserting an information card, and one side of the bag body has a drawstring.

2. The pressure-resistant and moisture-proof bag for first-cured tobacco leaves according to claim 1, characterized in that: The length of the bag is 850-1000mm and the width is 350-450mm.

3. The pressure-resistant and moisture-proof bag for first-cured tobacco leaves according to claim 1, characterized in that: Both the bag body and the spacer membrane are made of TPU material.

4. The pressure-resistant and moisture-proof bag for first-cured tobacco leaves according to claim 1, characterized in that: The zipper is an airtight zipper.

5. The pressure-resistant and moisture-proof bag for first-cured tobacco leaves according to claim 1, characterized in that: The zipper has been replaced with a self-sealing strip.

6. The pressure-resistant and moisture-proof bag for first-cured tobacco leaves according to claim 1, characterized in that: The spacer membrane is provided with elastic support strips.

7. A pressure-resistant and moisture-proof bag for first-cured tobacco leaves according to claim 6, characterized in that: The elastic support strip is wavy or arc-shaped.