Packaging bag with adjustable volume

Abstract

The utility model discloses a volume-adjustable packaging bag which comprises bag pieces, the bag pieces are matched together to form a bag body, a sealing clamping chain is arranged in the bag body and located at a bag opening of the bag body, the volume-adjustable packaging bag further comprises male and female hook-and-loop fasteners, the female hook-and-loop fasteners and the male hook-and-loop fasteners are both arranged on the bag body, and the sealing clamping chain is arranged on the bag opening of the bag body. The female hook-and-loop fastener and the male hook-and-loop fastener are both located outside the bag body and are in a non-contact state. The packaging bag has the advantages that the bag body can be temporarily shrunk by means of mutual bonding of the female hook-and-loop fastener and the male hook-and-loop fastener, operation is convenient and fast, and clamping by means of a clamp is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of packing utensil, especially a volume adjustable packing bag. BACKGROUND

[0002] At present, many granular articles (including but not limited to beans and cereals) are packaged by packing bags, and the patent announcement document CN204297289U discloses a packing bag commonly used for packaging granular articles. However, there is a problem in the use of this packing bag, that is, when a small amount of granular articles is packed (i.e. when the bag needs to be reduced in size), the bag needs to be folded, and after the bag is folded, it needs to be clamped and fixed by a fixing tool such as a clamp, which is very inconvenient. SUMMARY

[0003] In view of the above problems, the utility model provides a volume adjustable packing bag, which can be temporarily reduced in size by mutual adhesion of the female magic tape and the male magic tape, and the operation is convenient and fast without the need of clamping by a clamp.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A volume adjustable packing bag, comprising a bag piece, the bag piece is matched to form a bag body, a sealing clamp chain is arranged in the bag body, and the sealing clamp chain is located at the bag opening of the bag body, and the packing bag further comprises female and male magic tapes, the female magic tape and the male magic tape are arranged on the bag body, and the female magic tape and the male magic tape are located outside the bag body, and the female magic tape and the male magic tape are in a non-contact state.

[0006] In the volume adjustable packing bag, the bag piece is matched to form the bag body, the sealing clamp chain is arranged at the bag opening of the bag body, and the bag opening of the bag body is sealed by the sealing clamp chain, so that the use of the whole packing bag can be realized again after use. Meanwhile, the female magic tape and the male magic tape are arranged on the outer wall of the bag body in the packing bag, the female magic tape and the male magic tape can be mutually adhered to realize temporary locking, so that the female magic tape and the male magic tape can be mutually adhered to temporarily reduce the size of the bag body in the packing bag, the operation is convenient and fast, and the clamp is not needed.

[0007] Optionally, the female magic tape has two, the male magic tape has two, and the female magic tape and the male magic tape are perpendicular to the sealing clamp chain.

[0008] The length of the male magic tape is greater than that of the female magic tape, so that the adhesion of different positions can be realized according to the needs to realize the reduction of the bag body in different sizes.

[0009] Optionally, a tear strip is arranged on the bag body.

[0010] The tear-off strip is arranged on the side wall of the bag body, and when the tear-off strip is torn off from the bag body, the bag opening of the bag body is torn and formed.

[0011] Optionally, the bag sheet comprises a PET printing film layer, an aluminum foil layer, a nylon film layer and a heat-seal PE film layer, the aluminum foil layer is arranged between the PET printing film layer and the heat-seal PE film layer, the nylon film layer is arranged between the heat-seal PE film layer and the aluminum foil layer, and a resin-coated film layer is arranged between the PET printing film layer and the aluminum foil layer.

[0012] Specifically, the bag sheet of the packaging bag is composed of a PET printing film layer, an aluminum foil layer, a nylon film layer and a heat-seal PE film layer, so that the entire bag sheet has good barrier property and the entire bag body has good foldability.

[0013] Optionally, the bag sheet further comprises a first adhesive layer and a second adhesive layer, the first adhesive layer is arranged between the aluminum foil layer and the nylon film layer, the second adhesive layer is arranged between the nylon film layer and the heat-seal PE film layer, the thickness of the first adhesive layer is 3.5 microns, and the thickness of the second adhesive layer is 3.5 microns.

[0014] Specifically, the adhesives used in the first adhesive layer and the second adhesive layer are both polyurethane.

[0015] Optionally, the bag sheet further comprises an ink layer, the ink layer is arranged between the PET printing film layer and the resin-coated film layer, and the thickness of the ink layer is 0.5 microns.

[0016] Optionally, the thickness of the PET printing film layer is 12 microns, the thickness of the resin-coated film layer is 25 microns, the thickness of the nylon film is 15 microns, and the thickness of the heat-seal PE film layer is 60 microns.

[0017] Optionally, the female magic tape and the male magic tape are arranged on the PET printing film layer.

[0018] Optionally, the sealing clamping chain is arranged on the heat-seal PE film layer.

[0019] The packaging bag has the advantages that the female magic tape and the male magic tape can be mutually adhered to temporarily reduce the bag body, and the operation is convenient and fast without the need of clamps. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Figure 1 is a structural schematic diagram of a volume-adjustable packaging bag;

[0022] Figure 2 is a structural schematic diagram of a bag piece.

[0023] In the drawings, reference numerals are: 1, bag piece; 2, tear strip; 3, sealing clamp chain; 401, female magic tape; 402, male magic tape; 11, PET printing film layer; 12, ink layer; 13, resin lamination layer; 14, aluminum foil layer; 15, first adhesive layer; 16, nylon film layer; 17, second adhesive layer; 18, heat-seal PE film layer. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the size of each part shown in the drawings is not drawn in accordance with the actual proportion relationship. The technology, method and equipment known to those skilled in the art may not be discussed in detail, but under appropriate circumstances, the technology, method and equipment should be regarded as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] As shown in the drawings Figure 1 and the drawings Figure 2 , a volume-adjustable packaging bag, comprising a bag piece 1, the bag piece 1 is fitted together to form a bag body, a sealing clamp chain 3 is arranged in the bag body, and the sealing clamp chain 3 is located at the bag opening of the bag body, further comprising female and male magic tapes 402, the female magic tape 401 and the male magic tape 402 are arranged on the bag body, and the female magic tape 401 and the male magic tape 402 are located outside the bag body, and the female magic tape 401 and the male magic tape 402 are in a non-contact state.

[0028] The bag piece 1 is used to form the bag body, and the sealing clamp chain 3 is arranged at the bag opening of the bag body, and the bag opening of the bag body is sealed by the sealing clamp chain 3, so that the whole packaging bag can be reused after use. At the same time, the female magic tape 401 and the male magic tape 402 are arranged on the outer wall of the bag body, and the female magic tape 401 and the male magic tape 402 can be adhered to each other to realize temporary locking, so that the bag body can be temporarily reduced by the female magic tape 401 and the male magic tape 402, which is convenient and fast to operate without the need of clamps.

[0029] As shown in the accompanying Figure 1 and the accompanying Figure 2 , the female magic tape 401 has two, and the male magic tape 402 has two, and the female magic tape 401 and the male magic tape 402 are perpendicular to the sealing clamp chain 3.

[0030] The length of the male magic tape 402 is greater than that of the female magic tape, so that the adhesion at different positions can be realized according to the needs to realize the reduction of the bag body of different sizes.

[0031] As shown in the accompanying Figure 1 and the accompanying Figure 2 , the bag body is provided with a tear strip 2.

[0032] The tear strip 2 is arranged on the side wall of the bag body, and when the tear strip 2 is torn off from the bag body, the bag opening on the bag body is torn into a shape.

[0033] As shown in the accompanying Figure 1 and the accompanying Figure 2 , the bag piece 1 includes a PET printing film layer 11, an aluminum foil layer 14, a nylon film layer 16 and a heat-seal PE film layer 18, the aluminum foil layer 14 is arranged between the PET printing film layer 11 and the heat-seal PE film layer 18, the nylon film layer 16 is arranged between the heat-seal PE film layer 18 and the aluminum foil layer 14, and the PET printing film layer 11 and the aluminum foil layer 14 are provided with a resin coating layer 13.

[0034] Specifically, the bag piece 1 used in the packaging bag is composed of a PET printing film layer 11, an aluminum foil layer 14, a nylon film layer 16 and a heat-seal PE film layer 18, which can not only ensure that the whole bag piece 1 has good barrier property, but also ensure that the whole bag body has good foldability.

[0035] As shown in the accompanying Figure 1 and the accompanying Figure 2As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns.

[0036] The adhesives used in the first adhesive layer 15 and the second adhesive layer 17 are both polyurethane.

[0037] As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns. Figure 1 Figure 2 As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns.

[0038] As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns. Figure 1 Figure 2 As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns.

[0039] As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns. Figure 1 Figure 2 As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns.

[0040] As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns. Figure 1 Figure 2 As shown in the drawings, the first adhesive layer 15 is arranged between the aluminum foil layer 14 and the nylon film layer 16, and the second adhesive layer 17 is arranged between the nylon film layer 16 and the heat-seal PE film layer 18. The thickness of the first adhesive layer 15 is 3.5 microns, and the thickness of the second adhesive layer 17 is 3.5 microns.

[0041] The above-described embodiments only express some embodiments of the present application, which are described in more detail and in detail, but should not be understood as limiting the scope of the present application. It should be noted that for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.​​​​

Claims

1. A volume-adjustable packaging bag, comprising bag panels, the bag panels being fitted together to form a bag body, a sealing chain being disposed inside the bag body, and the sealing chain being located at the bag opening, characterized in that, It also includes male and female hook and loop fasteners, both of which are located on the bag body and outside the bag, and are in a non-contact state.

2. The adjustable-volume packaging bag according to claim 1, characterized in that, There are two female hook and loop fasteners and two male hook and loop fasteners, both of which are perpendicular to the sealing chain.

3. The adjustable-volume packaging bag according to claim 1, characterized in that, The bag is equipped with tear strips.

4. The adjustable-volume packaging bag according to claim 1, characterized in that, The bag sheet includes a PET printing film layer, an aluminum foil layer, a nylon film layer, and a heat-sealable PE film layer. The aluminum foil layer is disposed between the PET printing film layer and the heat-sealable PE film layer. The nylon film layer is disposed between the heat-sealable PE film layer and the aluminum foil layer. A resin coating layer is disposed between the PET printing film layer and the aluminum foil layer.

5. The adjustable-volume packaging bag according to claim 4, characterized in that, It also includes a first adhesive layer and a second adhesive layer, the first adhesive layer being disposed between the aluminum foil layer and the nylon film layer, and the second adhesive layer being disposed between the nylon film layer and the heat-sealable PE film layer, the thickness of the first adhesive layer being 3.5 micrometers, and the thickness of the second adhesive layer being 3.5 micrometers.

6. The adjustable-volume packaging bag according to claim 4, characterized in that, It also includes an ink layer disposed between the PET substrate film layer and the resin coating layer, the ink layer having a thickness of 0.5 micrometers.

7. The adjustable-volume packaging bag according to claim 4, characterized in that, The thickness of the PET substrate film is 12 micrometers, the thickness of the resin coating layer is 25 micrometers, the thickness of the nylon film is 15 micrometers, and the thickness of the heat-sealable PE film layer is 60 micrometers.

8. The adjustable-volume packaging bag according to claim 4, characterized in that, The female and male hook and loop fasteners are disposed on the PET substrate film layer.

9. A volume-adjustable packaging bag according to claim 8, characterized in that, The sealing clamp is disposed on the heat-sealed PE film layer.

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