Light-shielding barrier packaging bag

Abstract

The utility model discloses a kind of light-avoiding barrier packaging bags, including shading composite film, shading composite film is cooperated together to form bag body, bag opening is set on the bag body, further include sealing clamp chain and magnetic attraction film, the sealing clamp chain is set on the inner wall of bag body, the magnetic attraction film is set on the inner wall of bag body, and sealing clamp chain and magnetic attraction film are in parallel state, the magnetic attraction film and sealing clamp chain are in non-contact state, the magnetic attraction film is between sealing clamp chain and bag opening, the edge of bag body is provided with triangular easy-to-tear opening, and easy-to-tear opening is between magnetic attraction film and bag opening. This kind of packaging bag has the following beneficial effects: by setting sealing clamp chain and magnetic attraction film, two double openable seals after opening bag are realized, sealing is convenient and sealing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of packaging products, and in particular to a light-blocking packaging bag. Background Technology

[0002] Light-blocking packaging bags are a commonly used type of food packaging bag. The structure of commonly used light-blocking packaging bags is shown in patent publication CN103057812A. This type of packaging bag is made of two light-blocking plastic films laminated together. However, there is a problem with this type of packaging bag: the bag opening only has one seal. If the food inside the bag is not used up after the seal is broken, the bag opening needs to be clamped shut with clips. This sealing method is not only inconvenient, but also relatively poor. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a light-blocking packaging bag. By incorporating a sealing zipper and a magnetic closure, it achieves a double-openable seal after the bag is opened, providing convenient and effective sealing.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A light-blocking packaging bag includes a light-blocking composite film, which are joined together to form a bag body. The bag body has an opening. It also includes a sealing zipper and a magnetic closure. The sealing zipper is disposed on the inner wall of the bag body, and the magnetic closure is disposed on the inner wall of the bag body. The sealing zipper and the magnetic closure are parallel to each other and do not contact each other. The magnetic closure is located between the sealing zipper and the bag opening. A triangular easy-tear opening is provided at the edge of the bag body, and the easy-tear opening is located between the magnetic closure and the bag opening.

[0006] This type of light-blocking packaging bag is made of light-blocking composite film, so the entire packaging bag is also light-blocking. When this type of packaging bag is used to place food, it can prevent sunlight from directly shining on the food, thereby effectively extending the food's shelf life.

[0007] In this type of packaging bag, parallel sealing clips and magnetic strips are installed below the bag opening. The sealing clips and magnetic strips located on the inner wall of the bag provide a double seal. The sealing clips provide the first seal, and the magnetic strips provide the second seal. When the bag is opened and the food inside is taken out, and it needs to be resealed, the two magnetic strips on the inner wall of the bag are first brought together to form the first seal (i.e., the outer seal), and then the sealing clips are brought together to form the second seal (i.e., the inner seal). In this way, the magnetic strips and sealing clips achieve a double seal after the bag is opened, resulting in a better sealing effect.

[0008] In summary, this type of packaging bag achieves a double-openable seal after opening by incorporating a sealing zipper and a magnetic snap-on sheet, resulting in convenient and effective sealing.

[0009] The triangular tear-off opening in this type of packaging bag is designed to facilitate opening the bag's seal after the food has been sealed.

[0010] Meanwhile, in this type of packaging bag, the triangular easy-tear opening is located on the side near the magnetic strip. This way, when the bag is torn along the easy-tear opening, the tear is along the magnetic strip, which ensures that the tear opening of the bag is neat.

[0011] Optionally, the bag body has a hanging hole at the opening, and the hanging hole is circular or oval.

[0012] The purpose of the hanging holes is to make it easier to hang the bag on the shelf after the food is sealed.

[0013] Optionally, the distance between the sealing chain and the magnetic soft sheet is not less than 3 cm.

[0014] The distance between the sealing chain and the magnetic soft sheet is no less than 3 cm to ensure that there is a gap between the two seals, making it easy to open again after sealing.

[0015] Optionally, the light-shielding composite film includes an aluminum foil layer, a first PE film layer, a second PE film layer, and a PET film layer. The first PE film layer and the second PE film layer are respectively disposed on both sides of the aluminum foil layer, and the PET film layer is disposed on one side of the first PE film layer. An ink printing layer is disposed between the PET film layer and the first PE film layer.

[0016] In this type of packaging bag, a light-shielding composite film made of PE film, aluminum foil, and PET film is used to prepare the packaging bag. Since the light-shielding composite film contains aluminum foil and PET film, the presence of aluminum foil can ensure that the entire composite film has good light-shielding properties, while the combination of PET film and aluminum foil can ensure that the entire composite film has good barrier properties. Ultimately, the packaging bag prepared using this type of composite film has good barrier and light-shielding properties.

[0017] Optionally, the thickness of the first PE film layer is 20 micrometers to 30 micrometers, the thickness of the aluminum foil layer is 15 micrometers to 20 micrometers, and the thickness of the second PE film layer is 50 micrometers to 80 micrometers.

[0018] Optionally, the thickness of the PET film layer is 15 micrometers to 20 micrometers, and the thickness of the ink printing layer is 0.5 micrometers to 2 micrometers.

[0019] Optionally, the length of the sealing chain is equal to the length of the magnetic clasp, and the width of the sealing chain is less than the width of the magnetic clasp.

[0020] Optionally, the width of the magnetic cladding is 0.3 cm to 0.5 cm.

[0021] The beneficial effects of this utility model are: by setting a sealing chain and a magnetic soft sheet, a double-openable seal is achieved after the bag is opened, which is convenient and has a good sealing effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a simplified structural diagram of a light-shielding composite film;

[0024] Figure 2 This is a simplified structural diagram of a light-blocking packaging bag.

[0025] The labels in the figure are as follows: 101, PET film layer; 102, ink printing layer; 103, first PE film layer; 104, aluminum foil layer; 105, second PE film layer; 1, light-shielding composite film; 11, heat-sealing area; 2, sealing zipper; 3, magnetic PVC film; 4, hanging hole; 5, easy-tear opening. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] Combined with appendix Figure 1 and appendix Figure 2 As shown, a light-blocking packaging bag adopts the method described in the attached figure. Figure 1 The light-shielding composite film 1 shown is prepared by combining the light-shielding composite film 1 to form a bag body. The bag body has a bag opening and also includes a sealing chain 2 and a magnetic absorbing sheet 3. The sealing chain 2 is disposed on the inner wall of the bag body, and the magnetic absorbing sheet 3 is disposed on the inner wall of the bag body. The sealing chain 2 and the magnetic absorbing sheet 3 are in a parallel state and are not in contact with each other. The magnetic absorbing sheet 3 is located between the sealing chain 2 and the bag opening. A triangular easy-tear opening 5 is provided at the edge of the bag body and is located between the magnetic absorbing sheet 3 and the bag opening.

[0030] This type of light-blocking packaging bag is made of light-blocking composite film 1, so the entire packaging bag is also light-blocking. When this type of packaging bag is used to place food, it can prevent sunlight from directly shining on the food, thereby effectively extending the food's shelf life.

[0031] In this type of packaging bag, parallel sealing chains 2 and magnetic strips 3 are set below the bag opening. The sealing chains 2 and magnetic strips 3 located on the inner wall of the bag provide a double seal. The sealing chains 2 provide the first seal, and the magnetic strips 3 provide the second seal. When the bag is opened and the food inside is taken out, it needs to be resealed. First, the two magnetic strips 3 on the inner wall of the bag are put together to form the first seal (i.e., the outer seal). Then, the sealing chains 2 are put together to form the second seal (i.e., the inner seal). In this way, the magnetic strips 3 and sealing chains 2 achieve a double seal after the bag is opened, resulting in a better sealing effect.

[0032] In summary, this type of packaging bag achieves a double-openable seal after opening by setting the sealing chain 2 and the magnetic soft sheet 3, which is convenient and has a good sealing effect.

[0033] The triangular tear-off opening 5 in this type of packaging bag is designed to facilitate opening the bag's seal by tearing it open after the food has been sealed.

[0034] Meanwhile, in this type of packaging bag, the triangular easy-tear opening 5 is located on the side close to the magnetic strip 3. In this way, when the bag is torn along the easy-tear opening 5, the tear opening is along the magnetic strip 3, which can ensure the neatness of the tear opening of the bag.

[0035] Combined with appendix Figure 2 As shown, this type of packaging bag can be considered as consisting of two attached pieces. Figure 2 The light-shielding composite film 1 shown is prepared. Figure 2 The shaded area in the image is black; the shaded area is the heat-sealed area 11.

[0036] As attached Figure 2 As shown, a hanging hole 4 is provided at the opening of the bag body. The hanging hole 4 is circular or oval.

[0037] The purpose of hanging hole 4 is to facilitate hanging the bag on the shelf after the food is sealed.

[0038] As attached Figure 2 As shown, the distance between the sealing chain 2 and the magnetic soft sheet is not less than 3 cm.

[0039] The distance between the sealing chain 2 and the magnetic soft sheet is not less than 3 cm in order to ensure that there is a gap between the two seals, so that it is easy to open again after sealing.

[0040] As attached Figure 1 As shown, the light-shielding composite film 1 includes an aluminum foil layer 104, a first PE film layer 103, a second PE film layer 105, and a PET film layer 101. The first PE film layer 103 and the second PE film layer 105 are respectively disposed on both sides of the aluminum foil layer 104, and the PET film layer 101 is disposed on one side of the first PE film layer 103. An ink printing layer 102 is disposed between the PET film layer 101 and the first PE film layer 103.

[0041] In this type of packaging bag, a light-shielding composite film 1 composed of PE film, aluminum foil and PET film is used to prepare the packaging bag. Since the light-shielding composite film 1 contains aluminum foil and PET film, the presence of aluminum foil can ensure that the entire composite film has good light-shielding properties, while the combination of PET film and aluminum foil can ensure that the entire composite film has good barrier properties. Ultimately, the packaging bag prepared using this type of composite film has good barrier and light-shielding properties.

[0042] As attached Figure 1As shown, the thickness of the first PE film layer 103 is 20-30 micrometers, the thickness of the aluminum foil layer 104 is 15-20 micrometers, and the thickness of the second PE film layer 105 is 50-80 micrometers. After the bag is made, the second PE film layer is located on the inner wall of the bag and is used for heat sealing.

[0043] As attached Figure 1 As shown, the thickness of the PET film layer 101 is 15 micrometers to 20 micrometers, and the thickness of the ink printing layer 102 is 0.5 micrometers to 2 micrometers.

[0044] As attached Figure 1 As shown, the length of the sealing chain 2 is equal to the length of the magnetic sheet 3, and the width of the sealing chain 2 is less than the width of the magnetic sheet 3.

[0045] As attached Figure 1 As shown, the width of the magnetic clasp 3 is 0.3 cm to 0.5 cm.

[0046] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A light-blocking packaging bag, comprising a light-blocking composite film, wherein the light-blocking composite film is assembled to form a bag body, and the bag body has an opening, characterized in that, It also includes a sealing zipper and a magnetic clasp. The sealing zipper is disposed on the inner wall of the bag body, and the magnetic clasp is disposed on the inner wall of the bag body. The sealing zipper and the magnetic clasp are parallel to each other and do not contact each other. The magnetic clasp is located between the sealing zipper and the bag opening. A triangular easy-tear opening is provided at the edge of the bag body, and the easy-tear opening is located between the magnetic clasp and the bag opening.

2. The light-blocking packaging bag according to claim 1, characterized in that, The bag body has a hanging hole at the opening, which is circular or oval.

3. The light-blocking packaging bag according to claim 1, characterized in that, The distance between the sealing clamp and the magnetic soft sheet is not less than 3 cm.

4. The light-blocking packaging bag according to claim 1, characterized in that, The light-shielding composite film includes an aluminum foil layer, a first PE film layer, a second PE film layer, and a PET film layer. The first PE film layer and the second PE film layer are respectively disposed on both sides of the aluminum foil layer, and the PET film layer is disposed on one side of the first PE film layer. An ink printing layer is disposed between the PET film layer and the first PE film layer.

5. The light-blocking packaging bag according to claim 4, characterized in that, The thickness of the first PE film layer is 20 micrometers to 30 micrometers, the thickness of the aluminum foil layer is 15 micrometers to 20 micrometers, and the thickness of the second PE film layer is 50 micrometers to 80 micrometers.

6. The light-blocking packaging bag according to claim 4, characterized in that, The thickness of the PET film layer is 15 micrometers to 20 micrometers, and the thickness of the ink printing layer is 0.5 micrometers to 2 micrometers.

7. The light-blocking packaging bag according to claim 1, characterized in that, The length of the sealing chain is equal to the length of the magnetic sheet, and the width of the sealing chain is less than the width of the magnetic sheet.

8. The light-blocking packaging bag according to claim 7, characterized in that, The width of the magnetic cladding is 0.3 cm to 0.5 cm.

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