A multi-layer foldable composite film bag

Abstract

The utility model discloses a multilayer foldable composite film bag relates to composite film bag technical field, including composite film bag main part, folding indentation and ultrathin memory metal strip, the inside of composite film bag main part is provided with two storage cavity, and the outside both sides of composite film bag main part are provided with folding indentation, the outside of composite film bag main part is installed with ultrathin memory metal strip, and ultrathin memory metal strip includes bottom frame and side bracing, the bottom frame fixedly attached in the bottom corner place of composite film bag main part, and the side corner place of composite film bag main part is fixedly bonded with side bracing. The multilayer foldable composite film bag, the setting of side edge folding indentation is convenient to the overall folding of composite film bag main part, and can use the adjusting rope band cooperation magic tape to carry out the winding of composite film bag main part after folding, and the bottom frame of ultrathin memory metal strip, side bracing, when the metal strip of composite film bag main part folding is curved with shape, and after unfolding, automatically rebound supports the bag body, forms the stable support structure.

Description

Technical Field

[0001] This utility model relates to the field of composite film bag technology, specifically a multi-layer foldable composite film bag. Background Technology

[0002] Composite film bags are multifunctional packaging bags made of two or more materials through processes such as bonding and heat sealing, and have significant protective and barrier properties.

[0003] For example, the utility model application with application number 202420801976.8 discloses a food packaging composite film bag. Similar composite film bags currently have the following shortcomings: although they can be used for food packaging, they are not easy to fold and store in actual use, and they are easily deformed after folding, making their stability after folding relatively insufficient. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer foldable composite film bag to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer foldable composite film bag, comprising a composite film bag body, folding creases, and an ultra-thin memory metal strip. The composite film bag body has two storage cavities inside, and folding creases are provided on both sides of the outer side of the composite film bag body. An ultra-thin memory metal strip is installed on the outer side of the composite film bag body, and the ultra-thin memory metal strip includes a bottom frame and side support strips. The bottom frame is fixedly attached to the bottom corner of the composite film bag body, and the side support strips are fixedly adhered to the side corners of the composite film bag body. The bottom frame and the side support strips are fixedly connected. A double-track sealing strip is fixed to the inner wall of the upper opening of the composite film bag body.

[0006] Furthermore, the composite film bag body includes an oil-proof film and a polyester film layer, with a polyester film layer disposed on the outer side of the oil-proof film, and the oil-proof film and the polyester film layer having the same thickness.

[0007] Furthermore, the composite film bag body also includes a tensile mesh layer and an antibacterial film layer. The tensile mesh layer is disposed on the outside of the polyester film layer, and the antibacterial film layer is fixed on the outside of the tensile mesh layer.

[0008] Furthermore, the composite film bag body also includes a wear-resistant printed film and a waterproof coating. The wear-resistant printed film is fixed to the outside of the antibacterial film layer, and the outer surface of the wear-resistant printed film is provided with a waterproof coating.

[0009] Furthermore, a sealing tongue is integrally connected to the upper middle part of the composite film bag body, and a first magnetic strip is fixed to the side of the sealing tongue, and a handle groove is provided in the middle of the sealing tongue.

[0010] Furthermore, a second magnetic strip is fixed to the upper outer surface of the composite film bag body, and the second magnetic strip and the first magnetic strip are magnetically connected.

[0011] Furthermore, an adjustment rope is connected to the lower side of the composite film bag body, and one end of the adjustment rope is attached with Velcro on both sides.

[0012] This utility model provides a multi-layer foldable composite film bag, which has the following beneficial effects: This utility model features an ultra-thin memory metal strip and side folding creases for easy folding of the composite film bag body. After folding, the bag body can be rolled up using an adjustable rope and Velcro. The bottom frame and side support strips of the ultra-thin memory metal strip bend with the shape of the composite film bag body when folded, and automatically spring back to support the bag body after unfolding, forming a stable support structure for easy use. The double-track sealing strip can seal the items in the internal storage cavity of the composite film bag body. The first and second magnetic strips of the sealing tongue are magnetically connected to further seal and protect the bag opening.

[0013] This utility model features a composite film bag body. The innermost oil-proof film prevents grease penetration and provides some moisture resistance. The polyester film layer is made of food-grade material and acts as a physical separator. The tensile mesh layer, attached to the outside of the polyester film layer as a reinforcing structure, provides tear resistance. The antibacterial film layer effectively inhibits bacteria and reduces microbial contamination. The wear-resistant printed film, composed of a film bag printing layer and a protective film, has a certain load-bearing capacity and is convenient for packaging. The outermost waterproof coating has good hydrophobic properties, enabling the composite film bag body to be used for food packaging. The two internal storage cavities of the composite film bag body can be used simultaneously. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a multi-layer foldable composite film bag according to the present invention; Figure 2 This is a schematic diagram of the ultrathin memory metal strip structure of a multi-layer foldable composite film bag according to the present invention; Figure 3 This is a schematic cross-sectional view of the main body of a multi-layer foldable composite film bag according to the present invention.

[0015] In the diagram: 1. Composite film bag body; 101. Oil-proof film; 102. Polyester film layer; 103. Tensile mesh layer; 104. Antibacterial film layer; 105. Wear-resistant printed film; 106. Waterproof coating; 2. Folding crease; 3. Ultra-thin memory metal strip; 301. Bottom frame; 302. Side support strip; 4. Double-track sealing strip; 5. Sealing tongue; 6. First magnetic strip; 7. Second magnetic strip; 8. Handle groove; 9. Adjustable rope; 10. Velcro. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] like Figure 1 and Figure 3 As shown, a multi-layer foldable composite film bag includes a composite film bag body 1, folding indentations 2, and an ultra-thin memory metal strip 3. The composite film bag body 1 has two internal storage cavities, and folding indentations 2 are provided on both external sides. The composite film bag body 1 includes an oil-proof film 101 and a polyester film layer 102. The polyester film layer 102 is provided on the outer side of the oil-proof film 101, and the oil-proof film 101 and the polyester film layer 102 have equal thicknesses. The composite film bag body 1 also includes a tensile mesh layer 103 and an antibacterial film layer 104. The tensile mesh layer 103 is provided on the outer side of the polyester film layer 102, and the antibacterial film layer 104 is fixed to the outer side of the tensile mesh layer 103. The composite film bag body 1 also includes a wear-resistant printed film 105 and a waterproof coating 106. The antibacterial film layer 104 is further... A wear-resistant printed film 105 is fixed to the side, and a waterproof coating 106 is provided on the outer surface of the wear-resistant printed film 105; the innermost oil-proof film 101 can prevent grease penetration and has a certain moisture-proof performance; the polyester film layer 102 is a food-grade material and can play a physical separation role; the tensile mesh layer 103 is attached to the outside of the polyester film layer 102 as a reinforcing structure and can play a tear-resistant role; the antibacterial film layer 104 can effectively inhibit bacteria and reduce microbial contamination; the wear-resistant printed film 105 is composed of a film bag printing layer and a protective film, which has a certain load-bearing capacity and is convenient for packaging use; the outermost waterproof coating 106 has good hydrophobic properties, so that the composite film bag body 1 can be used for food packaging; the two storage cavities inside the composite film bag body 1 can be used simultaneously.

[0018] like Figure 1 and Figure 2As shown, an ultra-thin memory metal strip 3 is installed on the outer side of the composite film bag body 1. The ultra-thin memory metal strip 3 includes a bottom frame 301 and a side support strip 302. The bottom frame 301 is fixedly attached to the bottom corner of the composite film bag body 1, and the side support strip 302 is fixedly adhered to the side corner of the composite film bag body 1. The bottom frame 301 and the side support strip 302 are fixedly connected. A double-track sealing strip 4 is fixed to the inner wall of the upper opening of the composite film bag body 1. A sealing tongue 5 is integrally connected to the upper middle part of the composite film bag body 1. A first magnetic strip 6 is fixed to the side of the sealing tongue 5, and a handle groove 8 is opened in the middle of the sealing tongue 5. A second magnetic strip 7 is fixed to the upper outer surface of the composite film bag body 1. The second magnetic strip 7 and the first magnetic strip 6 are... The composite film bag body 1 is magnetically connected to an adjusting rope 9 on its lower side, with Velcro 10 attached to both sides of one end of the adjusting rope 9. The side folding creases 2 facilitate the overall folding of the composite film bag body 1, and after folding, the adjusting rope 9 and Velcro 10 can be used to roll up the composite film bag body 1. The bottom frame 301 and side support strip 302 of the ultra-thin memory metal strip 3 bend with the shape when the composite film bag body 1 is folded, and automatically spring back to support the bag body after unfolding, forming a stable support structure for easy use. The double-track sealing strip 4 can seal the items in the internal storage cavity of the composite film bag body 1. The first magnetic strip 6 and the second magnetic strip 7 of the sealing tongue 5 are magnetically connected to further seal and protect the bag opening.

[0019] In summary, as Figures 1-3 As shown, this multi-layer foldable composite film bag has two storage cavities inside the main body 1 that can be used simultaneously. When in use, the side folding creases 2 facilitate the overall folding of the main body 1 of the composite film bag. After folding, the main body 1 of the composite film bag can be rolled up using the adjusting rope 9 and Velcro 10. The bottom frame 301 and side support strip 302 of the ultra-thin memory metal strip 3 bend with the shape when the main body 1 of the composite film bag is folded, and automatically rebound to support the bag body after unfolding, forming a stable support structure. At the same time, the double-track sealing strip 4 can seal the items in the storage cavities inside the main body 1 of the composite film bag. The first magnetic strip 6 and the second magnetic strip 7 of the sealing tongue 5 are magnetically connected to further seal and protect the bag opening. During use, the innermost oil-proof film 101 prevents grease penetration and also has a certain degree of moisture resistance. The polyester film layer 102 is made of food-grade material and can act as a physical separator. The tensile mesh layer 103, as a reinforcing structure, is attached to the outside of the polyester film layer 102 and can provide tear resistance. The antibacterial film layer 104 can effectively inhibit bacteria and reduce microbial contamination. The wear-resistant printed film 105 is composed of a film bag printing layer and a protective film, which has a certain load-bearing capacity and is convenient for packaging. The outermost waterproof coating 106 has good hydrophobic properties, thus enabling the composite film bag body 1 to be used for food packaging. This completes the use process of the multi-layer foldable composite film bag.

[0020] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A multi-layer foldable composite film bag, comprising a composite film bag body (1), folding indentations (2), and an ultra-thin memory metal strip (3), characterized in that, The composite film bag body (1) has two storage cavities inside, and folding indentations (2) are provided on both sides of the outside of the composite film bag body (1). An ultra-thin memory metal strip (3) is installed on the outside of the composite film bag body (1), and the ultra-thin memory metal strip (3) includes a bottom frame (301) and a side support strip (302). The bottom frame (301) is fixedly attached to the bottom corner of the composite film bag body (1), and the side support strip (302) is fixedly glued to the side corner of the composite film bag body (1). The bottom frame (301) and the side support strip (302) are fixedly connected. A double-track sealing strip (4) is fixed on the inner wall of the upper opening of the composite film bag body (1).

2. The multi-layer foldable composite film bag according to claim 1, characterized in that, The composite film bag body (1) includes an oil-proof film (101) and a polyester film layer (102). The outer side of the oil-proof film (101) is provided with a polyester film layer (102), and the thickness of the oil-proof film (101) and the polyester film layer (102) are equal.

3. The multi-layer foldable composite film bag according to claim 2, characterized in that, The composite film bag body (1) also includes a tensile mesh layer (103) and an antibacterial film layer (104). The tensile mesh layer (103) is provided on the outside of the polyester film layer (102), and the antibacterial film layer (104) is fixed on the outside of the tensile mesh layer (103).

4. A multi-layer foldable composite film bag according to claim 3, characterized in that, The composite film bag body (1) also includes a wear-resistant printed film (105) and a waterproof coating (106). The wear-resistant printed film (105) is fixed on the outside of the antibacterial film layer (104), and the outer surface of the wear-resistant printed film (105) is provided with a waterproof coating (106).

5. A multi-layer foldable composite film bag according to claim 1, characterized in that, The main body (1) of the composite film bag is integrally connected to the upper middle part of the sealing tongue (5), and the side of the sealing tongue (5) is fixed with a first magnetic strip (6), and the middle part of the sealing tongue (5) is provided with a handle groove (8).

6. A multi-layer foldable composite film bag according to claim 5, characterized in that, The upper outer surface of the composite film bag body (1) is fixed with a second magnetic strip (7), and the second magnetic strip (7) and the first magnetic strip (6) are magnetically connected.

7. A multi-layer foldable composite film bag according to claim 1, characterized in that, The lower side of the composite film bag body (1) is connected to an adjustment rope (9), and one end of the adjustment rope (9) is attached with Velcro (10) on both sides.

Images