Disposable sealed packaging bag

Abstract

The utility model discloses a disposable sealed packaging bag which is characterized in that the edge of one side or multiple sides of a bag body is subjected to hot melting sealing to form a sealing edge, or one side or multiple sides of an open bag body are subjected to gluing sealing to form a glue film layer to form a sealed bag body, and the bag body is a sealed empty bag. According to the novel sealed packaging bag, the possibility that the bag body is polluted by dust, water vapor and germs in the transportation and storage process is effectively prevented, food storage is safer and more sanitary, meanwhile, the novel sealed packaging bag is simple in structure and can be produced through existing equipment, and the good market prospect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a disposable sealed packaging bag. Background Art

[0002] Existing disposable food packaging bags, such as empty plastic bags, coated paper bags, tin foil insulation bags, etc., are mostly used for food loading and unloading, which are convenient and hygienic and widely used. Empty plastic bags or coated paper bags are used for food packaging such as scallion pancakes, stewed food, fried chicken, barbecue, fried melon seeds, fried chestnuts, steamed peanuts, etc. Composite tin foil is made into insulation packaging bags, which are used for food insulation packaging and can be taken away.

[0003] Existing disposable food packaging bags are usually single-side open structures. When in use, a single packaging bag is taken, opened at the open end, and food is put into the bag.

[0004] However, during the storage of such open-mouthed packing bags, dust, water vapor, germs and other pollutants are easily introduced into the open areas of the packing bags, so that the interior of the packing bags is easily contaminated. Utility Model Content

[0005] In response to the problems in the related art, the present application discloses a disposable sealed packaging bag, which solves the problem that the packaging bag in the related art is easily contaminated during storage due to its open design.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A disposable sealed packaging bag comprises a bag body, wherein the bag body comprises a front bag surface and a rear bag surface, the bag body is in the shape of a cavity for placing articles, a sealing structure is provided on one side or multiple sides of the bag body, and the sealing structure seals the bag body.

[0008] As a further solution of the present application: the sealing structure includes a sealing edge or a film layer.

[0009] As a further solution of the present application: the sealing edge on one side or the sealing edges on two adjacent sides are provided with an opening structure, and the corresponding single side or two adjacent sides of the bag body can be opened by the opening structure.

[0010] As a further solution of the present application: the unsealing structure includes an easy-tear opening.

[0011] As a further solution of the present application: two opening structures are provided on the same side of the sealing edge, and after the opening structure above the sealing edge is opened and items are placed in, the bag body can be sealed and opened again.

[0012] As a further solution of the present application: a single side or multiple sides of the bag body are provided with a folding structure, and the folding structure can increase the volume of the bag body.

[0013] As a further solution of the present application: a front sealing edge and a rear sealing edge are provided at the connection between the folding structure and the front bag surface and the rear bag surface, and the opening structure is provided on the front sealing edge or the rear sealing edge.

[0014] As a further solution of the present application: the opening structure is provided on both the front sealing edge and the rear sealing edge, and the opening structures on the front sealing edge and the rear sealing edge have different horizontal heights.

[0015] As a further solution of the present application: the horizontal height of the unsealing structures on the front sealing edge and the rear sealing edge is 0.5-3 cm apart.

[0016] As a further solution of the present application: a single side of the bag body is open, a plurality of the bag bodies are stacked and connected up and down, the open side faces are located on the same side, and the open side faces are provided with the adhesive film layer.

[0017] As a further solution of the present application: a single side of the bag body is open, a plurality of bag body reels are connected, the open sides are located on the same side, and the open side is provided with the adhesive film layer.

[0018] In summary, the beneficial effects of this application are:

[0019] 1. This new type of disposable sealed packaging bag forms a sealed edge by hot-melt sealing on one or more sides of the bag body, or, the open bag body is sealed on one or more sides to form a film layer to form a sealed bag body. The bag body is a sealed empty bag. When in use, the bag body is opened and food is put into it and used as a disposable packaging bag. This new type of sealed packaging bag effectively prevents the possibility of the bag body being contaminated by dust, water vapor, and germs during transportation and storage, making food storage safer and more hygienic. At the same time, it has a simple structure and can be produced by existing equipment, and has a good market prospect.

[0020] 2. An opening structure is provided on one side sealing edge or on two adjacent sides sealing edges, preferably an easy-tear opening, through which the corresponding one side or two adjacent sides of the bag body can be opened, and the opening structure improves the opening efficiency of the packaging bag; in addition, the side sealed by the film layer can be directly opened with force, which is simple and efficient; the adjacent two sides of the packaging bag can be opened, and compared with opening on one side, it has a larger taking and placing area, which is suitable for the loading and eating of scallion pancake products.

[0021] 3. The front sealing edge and the rear sealing edge are provided at the connection between the folding structure and the front bag surface and the rear bag surface. The front sealing edge and the rear sealing edge are both provided with an opening structure, preferably an easy-tear opening. The horizontal height of the easy-tear openings on the front sealing edge and the rear sealing edge is 1 cm apart. The two easy-tear openings are set at different heights and the tearing height positions are also different. Pinch the sealing edge above the higher easy-tear opening of the bag body to tear the bag body. After tearing the bag body, the bag opening is located on the surface of the bag body, with a certain distance from the top of the bag body, which is conducive to the loading of goods.

[0022] The higher tear-off opening is located on the sealed edge on the back of the bag, and the lower tear-off opening is located on the sealed edge on the front of the bag. The height distance between the two is 0.5-3 cm. After tearing open the bag, the bag opening on the front side of the bag is lower, and the bag opening on the back side of the bag is higher. In this way, the bag opening on the user side (i.e. the front) is lower, which is convenient for loading food or articles, and ensures that the food is clean and hygienic when it contacts the bag.

[0023] 4. The bag body is provided with two opening structures on the same side of the sealing edge, preferably an easy-tear opening. After the easy-tear opening above the sealing edge is opened and the items are put in, the bag body can be vacuum packed and sealed to form a vacuum sealed bag. When the items in the bag are used, the sealed bag body can be torn open through the easy-tear opening below, and the items in the bag can be taken out for use, thereby improving the safety and use efficiency of the packaging bag.

[0024] 5. One side of the bag is open, and multiple bags are stacked up and down or connected by reels, with the open sides on the same side. Glue is applied to the open part of the bag, and a layer of glue film is formed after the glue solidifies, i.e., the film layer. The film forms a sealing layer for the bag opening, and the glue covers the side of the bag opening and allows part of the glue to penetrate into the gap between the bag openings. Multiple bags are connected and provided with a film layer at the open part, which can effectively seal the bag, thereby improving the processing efficiency of the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification. They are used to explain the present application together with the embodiments of the present application and do not constitute a limitation of the present application.

[0026] In the attached picture:

[0027] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present application.

[0028] Figure 2 This is a schematic diagram of the structure of the unsealed embodiment of the present application.

[0029] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present application.

[0030] Figure 4 This is a structural diagram of Example 3 of the present application.

[0031] Figure 5 This is a structural diagram of embodiment 4 of the present application.

[0032] Figure 6 This is a structural diagram of Example 5 of the present application.

[0033] Figure 7 This is a structural diagram of Example 6 of the present application.

[0034] Figure 8 This is a schematic diagram of the structure of the unsealed embodiment 6 of the present application.

[0035] Fig. 9 This is a schematic diagram of the structure of a double-layer opening in Example 1 of the present application.

[0036] Fig.10 This is a schematic diagram of the structure of a second embodiment of the present application in which multiple bag bodies are stacked and connected up and down.

[0037] Fig.11 This is a schematic diagram of the structure of multiple bag reels connected in Example 2 of the present application.

[0038] Reference numerals:

[0039] 1. Bag body; 2. Sealing edge; 3. Adhesive film layer; 4. Easy tearing edge; 5. Folding edge structure; 6. Front sealing edge; 7. Rear sealing edge; DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects disclosed in the present embodiments as detailed in the appended claims.

[0041] It should be noted that all directional indications in the embodiments (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the descriptions of "first", "second", etc. in the embodiments are only for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0043] In order to further understand the content, features and effects of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings: Example

[0044] like Figure 1 As shown: the bag body 1 includes a front bag surface and a rear bag surface, and the bag body 1 is in the shape of a cavity for placing items.

[0045] The bag body 1 is sealed by sealing edges 2 on all sides, and the sealing edges 2 on the corresponding sides are provided with corresponding easy-tear openings 4, so that the sealing edges 2 on the corresponding sides can be removed in two directions to open the packaging bag.

[0046] Of course, an easy-tear notch 4 can be provided on the single-sided sealed edge 2 to open the packing bag on a single side.

[0047] In addition, the bag body 1 may be provided with a folding structure 5 on one side or on corresponding sides to increase the volume, facilitate taking out and putting in food, and facilitate standing.

[0048] like Figure 2 Shown is a diagram of the packaging bag being opened after the single-side sealing edge 2 is removed.

[0049] In addition, if Fig. 9 As shown, the bag body 1 is provided with two opening structures on the same side of the sealing edge 2, preferably an easy-tear opening 4. After the easy-tear opening 4 above the sealing edge 2 is opened and the items are put in, the bag body 1 can be vacuum packed and sealed to form a vacuum sealed bag. When the items in the bag need to be used, the sealed bag body 1 can be torn open through the easy-tear opening 4 below, and the items in the bag can be taken out for use, thereby improving the safety and use efficiency of the packaging bag. Example

[0050] like Figure 3 As shown: the three sides of the bag body 1 are sealed by the sealing edges 2, and the single side is sealed by the film layer 3. The packaging bag can be opened by tearing the film layer 3.

[0051] The adhesive film layer 3 is a sealing layer formed by curing the glue applied to the bag opening.

[0052] The glue is applied to the surface of the bag opening, and the glue covers the side of the bag opening and allows part of the glue to penetrate into the gap between the bag openings. In addition, by pressing the bag body 1, the amount of glue that penetrates between the bag bodies 1 is reduced.

[0053] like Fig.10 As shown, a single side of the bag body 1 is open, and multiple bag bodies 1 are stacked and connected up and down, with the open side located on the same side. Glue is applied to the open part of the bag body 1, and after the glue is cured, a layer of glue film, namely, a glue film layer 3, is formed. The glue film forms a sealing layer for the bag opening, and the glue covers the side edges of the bag opening and allows part of the glue to penetrate into the gap between the bag openings. Multiple bag bodies are connected and provided with a glue film layer at the open part, which can effectively seal the bag body 1 and improve the processing efficiency of the bag body 1.

[0054] like Fig.11As shown, a single side of the bag body 1 is open, and multiple bag bodies 1 are connected by a reel, and the open sides are located on the same side. Glue is applied to the open part of the bag body 1, and a layer of glue film, i.e., a glue film layer 3, is formed after the glue is cured. The glue film forms a sealing layer for the bag opening, and the glue covers the side of the bag opening and allows part of the glue to penetrate into the gap between the bag openings. Multiple bag bodies are connected and provided with a glue film layer at the open part, which can effectively seal the bag body 1 and improve the processing efficiency of the bag body 1.

[0055] The glue generally refers to liquid, paste or solid hot melt adhesive. The glue solidifies over time or as the temperature decreases to form a layer of adhesive film that is firmly attached to the surface of the side of the bag body 1 .

[0056] In addition, the glue film layer 3 formed by the glue also has the characteristics of being waterproof, tough, easy to tear, safe and non-toxic.

[0057] 1. Glue form: 1) liquid; 2) paste; 3) hot melt adhesive.

[0058] 2. Glue type: food grade silicone, latex (rubber adhesive), emulsion, acrylate (resin adhesive). It needs to be food grade adhesive.

[0059] 3. The glue application methods are divided into: 1) spraying; 2) coating; 3) soaking; 4) spraying.

[0060] 4. The specific methods of applying glue are: 1) direct application; 2) spraying the primer and then applying glue; 3) immersion application.

[0061] 5. When using the roll film, for example, when the bag or plastic film in the roll film is pulled, the film connected to the side of the pulled bag or plastic film is pulled and torn, and then separated from the film on the side of the adjacent roll film. The part of the roll film that is not pulled, the film on the side, remains sealed, providing sealing protection for the side of the roll film.

[0062] By reducing the thickness of the film, it is relatively easy to tear the film when pulling the roll film. It can also save the amount of adhesive and save costs. Example

[0063] like Figure 4 As shown: the bag body 1 is a three-side sealed bag with a middle sealed edge structure, and the easy tearing opening 4 is arranged on the middle sealed edge. After tearing, the bag opening is located on the surface of the bag body 1, forming a staggered effect with the edge of the bag body 1, which is convenient for food to be loaded. In addition, the packaging bag is a whole after opening, and there is no packaging waste.

[0064] In addition, the corresponding left and right sides of the bag body 1 may be provided with folding structures 5 to increase the volume of the bag body 1. Example

[0065] like Figure 5As shown: the bag body 1 is sealed by sealing edges 2 on all sides, and adjacent sides of the bag body 1 are provided with easy-tear openings 4. The two easy-tear openings 4 can be torn open, and the two adjacent sealing edges 2 can be removed to realize the opening of the two adjacent sides. Example

[0066] like Figure 6 As shown: two adjacent sides of the bag body 1 are sealed by the sealing edge 2, and the other two adjacent sides are sealed by the adhesive film layer 3. When in use, the two adjacent sides of the bag body 1 can be opened by tearing the adhesive film layer 3. Example

[0067] like Figure 7-8 As shown: the upper and lower sides of the bag body 1 are sealed by the sealing edge 2, the left and right sides are the folding structure 5, the connection between the folding structure 5 and the front bag surface and the rear bag surface is provided with a front sealing edge 6 and a rear sealing edge 7, the front sealing edge 6 and the rear sealing edge 7 are both provided with an opening structure, and the horizontal heights of the opening structures on the front sealing edge 6 and the rear sealing edge 7 are different.

[0068] Preferably, the upper and lower sides of the bag body are sealed by a sealing edge 2, and either side of the left or right side is provided with a front sealing edge 6 and a rear sealing edge 7, and the other side is a sealing edge or no sealing edge is provided.

[0069] Preferably, the horizontal height of the unsealing structures on the front sealing edge 6 and the rear sealing edge 7 is 1 cm apart.

[0070] An easy-tear opening 4 is provided on each of the front sealing edge 6 and the rear sealing edge 7. The two easy-tear openings 4 are provided at different heights and the tearing height positions are also different. The bag body 1 is torn open by pinching the sealing edge 2 above the higher easy-tear opening 4 of the bag body 1. After the bag body 1 is torn open, the bag opening is located on the surface of the bag body 1 and has a certain distance from the top of the bag body 1, which is convenient for loading articles.

[0071] Among them, the higher tear-off opening 4 is located on the rear sealing edge 7 on the back of the bag body 1, and the lower tear-off opening 4 is located on the front sealing edge 6 on the front of the bag body 1. The height distance between the two is 0.5-3 cm, preferably 1 cm. After tearing the bag body 1, the bag opening on the front side of the bag body 1 is lower, and the bag opening on the back side of the bag body 1 is higher. In this way, the bag opening on the user side (i.e., the front) is lower, which is convenient for loading food or articles, and ensures that the food is clean and hygienic when contacting the bag body 1.

[0072] It should also be noted that the bag body preferably has a transverse or longitudinal straight tear film, the tearing opening of the bag body is a straight line, and the opening of the torn bag body is flat.

[0073] In addition to the straight-line easy-tear film, you can also use laser punching to form a dotted line hole on the inner plastic film of the bag body, so that the bag can be torn into a straight line.

[0074] The new disposable sealed packaging bag is formed by hot-melt sealing on one or more sides of the bag body to form a sealed edge, or by gluing and sealing on one or more sides of the open bag body to form a film layer, thereby forming a sealed bag body. The bag body is a sealed empty bag. When in use, the bag body is opened and food is put into the bag body to be used as a disposable packaging bag.

[0075] This new sealed packaging bag effectively prevents the bag from being contaminated by dust, water vapor, and germs during transportation and storage, making food storage safer and more hygienic. At the same time, it has a simple structure and can be produced by existing equipment, and has good market prospects.

[0076] Finally, it should be noted that the above disclosure is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. The scope of the present application is limited only by the attached claims.

Claims

1. A disposable sealed packaging bag, comprising a bag body (1), wherein the bag body (1) comprises a front bag surface and a rear bag surface, and the bag body (1) is in the shape of a cavity for placing articles, and is characterized in that: The bag body (1) is provided with a sealing structure on one side or multiple sides, and the sealing structure seals the bag body (1); The sealing structure comprises a sealing edge (2) or a film layer (3); The sealing edge (2) on one side or the sealing edges (2) on two adjacent sides are provided with an opening structure, and the corresponding single side or the adjacent two sides of the bag body (1) can be opened by the opening structure; Two opening structures are provided on the same side of the sealing edge (2); after the opening structure above the sealing edge (2) is opened and items are placed in, the bag body (1) can be sealed and opened again.

2. A disposable sealed packaging bag according to claim 1, characterized in that: The unsealing structure comprises an easy-tear opening (4).

3. A disposable sealed packaging bag according to claim 1, characterized in that: The bag body (1) is provided with a folding structure (5) on one side or multiple sides, and the folding structure (5) can increase the volume of the bag body (1).

4. A disposable sealed packaging bag according to claim 3, characterized in that: A front sealing edge (6) and a rear sealing edge (7) are provided at the connection between the folding structure (5) and the front bag surface and the rear bag surface, and the opening structure is provided on the front sealing edge (6) or the rear sealing edge (7).

5. A disposable sealed packaging bag according to claim 4, characterized in that: The opening structure is provided on both the front sealing edge (6) and the rear sealing edge (7), and the opening structures on the front sealing edge (6) and the rear sealing edge (7) are at different levels.

6. A disposable sealed packaging bag according to claim 5, characterized in that: The horizontal heights of the unsealing structures on the front sealing edge (6) and the rear sealing edge (7) are spaced apart by 0.5-3 cm.

7. A disposable sealed packaging bag according to claim 1, characterized in that: The bag body (1) has an open side on one side, and a plurality of bag bodies (1) are stacked and connected up and down, with the open side faces being located on the same side, and the adhesive film layer (3) is provided on the open side faces.

8. The disposable sealed packaging bag according to claim 1, characterized in that: The bag body (1) has an open side on one side, a plurality of bag bodies (1) are connected by reels, the open side faces are located on the same side, and the adhesive film layer (3) is provided on the open side faces.

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