Multi-layer rib type sealing bag

Abstract

The utility model discloses a multilayer rib type sealing bag, and belongs to the technical field of sealing bags. The sealing bag comprises a bag body, the bag body comprises an inner layer film and an outer layer film, the inner layer film and the outer layer film are asymmetrically arranged, and the surface area of the outer layer film is larger than that of the inner layer film; and the three pairs of sealing ribs are arranged, each pair of sealing ribs is divided into female ribs and male ribs, the female ribs and the male ribs are respectively fixed on the inner layer film and the outer layer film at equal intervals in a heat sealing or bonding manner, and the bag body is divided into four parts from top to bottom. According to the multi-layer rib type sealing bag, the sealing bag is divided into a plurality of independent sealing areas through rib structures, different materials can be contained at the same time, mixing of objects is avoided, independent storage is guaranteed, the safety and convenience of storage are improved, in addition, the sealing bag is designed asymmetrically, the inner layer film is made of LDPE materials, and the sealing bag is not prone to deformation. And the outer layer film is made of the LLDPE material with better toughness and larger surface area, so that the outer layer film is bulged and droops when the materials are loaded, the lower layer bone strips are effectively prevented from being opened, and the risk of cross contamination among the materials is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealed bags, in particular to a multilayer bone strip type sealed bag. BACKGROUND

[0002] With the increasing demand for functionality and convenience of packaging products in the consumer market, the design and application of sealed bags are increasingly diversified. Traditional sealed bags generally use a single sealing structure, which can meet the basic storage needs to some extent, but when storing multiple items, they often face problems such as mixing of items, insufficient sealing, and unreasonable use of space, especially during the storage of food, medicine, and industrial materials. The separation and protection of items are particularly important.

[0003] Most sealed bags on the market use symmetrical inner and outer film designs, meaning that the two layers of film use the same material and have the same surface area. When loading materials, the materials will push the sealed bag apart from the middle to the two sides. However, this structure is not suitable for multilayer bone strip type sealed bags. This is because in a multilayer sealed bag, this structure that pushes apart from the middle to the two sides is very easy to push apart the lower layer of bone strips, which can cause cross-contamination of materials, poor sealing, and other problems, and cannot effectively meet the isolation needs between different items, which may even affect the quality and safety of the items.

[0004] Therefore, it is particularly necessary to develop a sealed bag that can effectively separate items and maintain good sealing performance, especially in application scenarios where different items need to be separated and cross-contamination needs to be avoided. To this end, we propose a multilayer bone strip type sealed bag to solve the above problems. SUMMARY

[0005] The utility model aims at providing a multilayer bone strip type sealed bag to solve the problems of cross-contamination of materials, insufficient sealing, and unreasonable use of space when storing multiple items in traditional sealed bags.

[0006] To solve the above technical problems, the utility model provides a multilayer bone strip type sealed bag, which includes a bag body, the bag body includes an inner layer film and an outer layer film, the inner layer film and the outer layer film are asymmetrically arranged, the inner layer film is in a tight state, the outer layer film is in a loose state, the surface area of the outer layer film is larger than that of the inner layer film, when the bag body is loaded with particles, the weight of the particles will cause the particles to sink towards the outer layer film, thereby causing the outer layer film to bulge and sag on one side;

[0007] The sealing bone strips have three pairs, each pair consists of a female bone strip and a male bone strip, and are fixed on the inner layer film and the outer layer film at equal intervals by heat sealing or adhesion, dividing the bag body into four parts from top to bottom.

[0008] Preferably, the female bone strip and the male bone strip are matched with each other, and the female bone strip and the male bone strip are buckled to realize the sealing of the bag body.

[0009] Preferably, the inner layer film material is LDPE (low density polyethylene).

[0010] Preferably, the outer layer film material is LLDPE (linear low density polyethylene).

[0011] Preferably, the sealing bone strip sequentially comprises an opening area, a first sealing area, a second sealing area and a third sealing area from top to bottom.

[0012] The third sealing area is provided with outer layer films on two sides, and the surface areas of the outer layer films on the two sides are equal.

[0013] Preferably, the opening area comprises a sealing entrance arranged on the top.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The multi-layer bone strip type sealing bag of the utility model is divided into multiple independent sealing areas through the bone strip structure, can simultaneously hold different materials, is especially suitable for the scene that needs to use materials in sequence, and the design not only avoids the mixing of the materials, but also ensures the independent storage of each material, improves the safety and convenience of storage, and is especially suitable for the storage of food, medicine and industrial materials.

[0016] 2. The multi-layer bone strip type sealing bag of the utility model adopts an asymmetric bag body design, the inner layer film uses low density polyethylene, the outer layer film uses linear low density polyethylene with better toughness, and the surface area of the outer layer film is greater than that of the inner layer film. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is the overall structure schematic view of the multi-layer bone strip type sealing bag provided by the utility model;

[0018] Fig. 2 is the front view of the multi-layer bone strip type sealing bag provided by the utility model;

[0019] Fig. 3 is the side view of the multi-layer bone strip type sealing bag provided by the utility model;

[0020] In the figure: 1, bag body; 2, sealing bone strip; 101, inner layer film; 102, outer layer film; 103, opening area; 103a, sealing entrance; 104, first sealing area; 105, second sealing area; 106, third sealing area; 201, female bone strip; 202, male bone strip. DETAILED DESCRIPTION

[0021] The utility model makes further detailed explanation in combination with the drawings and specific embodiment. The advantages and features of the utility model will be more apparent according to the following description and claims. It should be noted that the drawings all adopt very simplified form and all use non-precise proportion, only to facilitate, clear and assist the purpose of explaining the embodiment of the utility model.

[0022] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship 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 indicated device or element 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" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances. EMBODIMENT

[0024] The utility model provides a kind of multilayer bone strip type sealing bag, please refer to Figs. 1-3, including a bag body 1, the bag body 1 comprising an inner layer film 101 and an outer layer film 102, the inner layer film 101 and the outer layer film 102 being asymmetrically arranged, wherein the inner layer film 101 is in a tight state and the outer layer film 102 is in a loose state, and the surface area of the outer layer film 102 is greater than that of the inner layer film 101, when the bag body 1 is filled with particles, the weight of the particles will make the particles sink and accumulate towards the outer layer film 102, so that one side of the outer layer film 102 presents a bulging and sagging state; a sealing rib 2, the sealing rib 2 has three pairs, each pair is divided into a female rib 201 and a male rib 202, and is fixed on the inner layer film 101 and the outer layer film 102 by heat sealing or adhesion at equal intervals, so as to divide the bag body 1 into four parts from top to bottom.

[0025] The female rib 201 and the male rib 202 are matched with each other, and the female rib 201 and the male rib 202 are buckled to realize sealing of the bag body 1; the material of the inner layer film 101 is LDPE (low density polyethylene); the material of the outer layer film 102 is LLDPE (linear low density polyethylene); the sealing rib 2 divides the bag body 1 into an opening area 103, a first sealing area 104, a second sealing area 105, and a third sealing area 106 from top to bottom; the third sealing area 106 uses the outer layer film 102 on both sides, and the surface areas of the outer layer films 102 on both sides are equal; the opening area 103 comprises a sealing inlet 103a opened at the top thereof.

[0026] It should be noted that the sealing bag is mainly composed of the bag body 1 and the sealing rib 2, the bag body 1 comprises the inner layer film 101 and the outer layer film 102, which are asymmetrically arranged to optimize the sealing performance and storage effect, the inner layer film 101 adopts low density polyethylene (LDPE) material and is kept in a tight state, while the outer layer film 102 adopts linear low density polyethylene (LLDPE) material and has a larger surface area than the inner layer film and is in a loose state, after the granular material is filled, the weight of the particles makes the outer layer film bulge downward and sag, thereby forming an asymmetric storage condition, effectively avoiding the lower rib being stretched open, and ensuring effective separation between the materials, low density polyethylene (LDPE) and linear low density polyethylene (LLDPE) are two different types of polyethylene materials, which can be used interchangeably in some applications, and there are some differences in the performance and characteristics of the films made of them, in terms of mechanical properties, the film made of linear low density polyethylene (LLDPE) material usually has better tear resistance and puncture resistance, better tensile strength and impact resistance, and therefore is suitable for the outer layer film 102 which is in direct contact with the material and bulges, and has higher strength, in addition, in terms of thermal properties, linear low density polyethylene (LLDPE) material also has higher melting point and thermal stability, and can store a wider range of materials.

[0027] Preferably, the sealing strip 2 consists of three pairs of strips, each pair being a female strip 201 and a male strip 202. These strips are uniformly heat-sealed or bonded to the inner surfaces of the inner membrane 101 and the outer membrane 102. The layout of the sealing strip 2 divides the bag body into four parts from top to bottom: an opening area 103, a first sealing area 104, a second sealing area 105, and a third sealing area 106. The female strip 201 and male strip 202 cooperate with each other through elastic sealing to achieve a seal on the bag body 1. This is achieved by using the elastic properties of the material (such as rubber, polymers, etc.) to adapt to changes in the gap between the contact surfaces. The male strip 202 and female strip 201 are complementary, deforming under pressure to fill the gaps between the contact surfaces, thus achieving a tight seal and ensuring that cross-contamination does not occur during storage.

[0028] Preferably, the opening area 103 is located at the top of the bag body 1 and is provided with a sealed inlet 103a to facilitate the loading and unloading of materials.

[0029] Preferably, since the third sealing area 106 is located on the lowest side, there is no need to consider issues such as the lower layer of ribs. The films on both sides of the bag body 1 are made of the outer film 102, and the surface areas of the two sides are equal. Considering the connection of the cross films, the same film design as the first two layers can still be used, but their surface areas are still equal.

[0030] In summary, this multi-layer ribbed sealing bag divides the bag into multiple independent sealing areas through a ribbed structure, allowing for the simultaneous storage of different materials. It is particularly suitable for scenarios where materials need to be used sequentially. This design not only prevents mixing between items but also ensures independent storage of each material, improving storage safety and convenience. It is especially suitable for storing food, pharmaceuticals, and industrial materials. Furthermore, the bag body employs an asymmetrical design. The inner film uses low-density polyethylene, while the outer film uses linear low-density polyethylene with better toughness. The outer film has a larger surface area than the inner film. When materials are filled, the material causes the outer film to bulge and droop against the bag surface, resulting in an asymmetrical placement of materials. This effectively prevents the lower ribs from being stretched open, ensuring effective separation between materials, further improving sealing performance, and reducing the risk of cross-contamination.

[0031] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A multi-layered ribbed sealing bag, characterized in that, include: The bag body (1) includes an inner membrane (101) and an outer membrane (102). The inner membrane (101) and the outer membrane (102) are asymmetrically arranged. The inner membrane (101) is in a taut state, and the outer membrane (102) is in a loose state. The surface area of ​​the outer membrane (102) is larger than that of the inner membrane (101). When particles are put into the bag body (1), the weight of the particles will cause the particles to accumulate and sink towards the outer membrane (102), so that one side of the outer membrane (102) bulges and droops. The sealing strips (2) are in three pairs, each pair consisting of a female strip (201) and a male strip (202), which are heat-sealed or bonded to the inner membrane (101) and the outer membrane (102) at equal intervals, dividing the bag body (1) into four parts from top to bottom.

2. The multi-layer ribbed sealing bag as described in claim 1, characterized in that, The female bone strip (201) and the male bone strip (202) cooperate with each other and fasten together to achieve the sealing of the bag body (1).

3. A multi-layer ribbed sealing bag as described in claim 2, characterized in that, The inner membrane (101) is made of LDPE.

4. A multi-layer ribbed sealing bag as described in claim 3, characterized in that, The outer membrane (102) is made of LLDPE.

5. A multi-layer ribbed sealing bag as described in claim 1, characterized in that, The sealing strip (2) divides the bag body (1) from top to bottom into an opening area (103), a first sealing area (104), a second sealing area (105), and a third sealing area (106). The third sealing area (106) is made of an outer membrane (102) on both sides, and the surface areas of the outer membrane (102) on both sides are equal.

6. A multi-layer ribbed sealing bag as described in claim 5, characterized in that, The opening area (103) includes a sealed inlet (103a) opened at its top.

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