CN209832841U - Packaging bag structure - Google Patents

Abstract

A packaging bag structure is characterized in that a main bag body of the packaging bag comprises a front surface layer and a rear surface layer, two side edges of each surface layer are subjected to heat sealing, an accordion-shaped bag bottom is arranged at the lower end between the two surface layers, at least one surface layer is provided with at least one attached bag in a heat sealing mode, each surface layer sequentially comprises a polyolefin thin film layer, a middle layer and a polyolefin thin film layer in a compounding mode, and the bag bottom and the attached bag are respectively formed in a compounding mode by an outer layer and a polyolefin thin film layer. And the polyolefin film layers in the bag bottom and the polyolefin film layers on the inner side surfaces of the two surface layers are respectively heat-sealed, so that a bag bottom is formed at the lower end between the two surface layers. The utility model discloses can be on the wrapping bag main bag body simple and easy quick direct at least one of heat-seal attach the bag, simultaneously greatly reduced the processing degree of difficulty and material cost.

Description

Packaging bag structure

Technical Field

The utility model relates to a wrapping bag, more specifically the wrapping bag structure that says so relates to.

Background

The existing common bag only has one accommodating cavity and can only accommodate one product, and the bag is not easy to realize if additional labels or gift cards or other bags are required to be placed. For a common packaging bag, the inner layer of the composite film is a material with heat sealing performance, and a bag making machine forms different bag types through folding and combining by certain equipment, such as: stand-up pouches, three-sided bags, square-bottom bags, five-sided bags, etc., but the prior bags all have only one cavity.

The packaging bags with the attached bags currently appear on the market: firstly, when selling and packaging similar to an additional gift, the gift is usually bound with a product by directly using an adhesive tape, so that the displayed effect is brute and not beautiful enough; secondly, a plurality of blank bags without printing are arranged on the market, a mode of sticking self-adhesive labels is adopted after products are filled in the blank bags, consumers are guided to purchase and use the blank bags, and when the products are used up, certain trouble is caused in waste recycling due to the fact that the plastic bags and the self-adhesive labels are made of different types of materials; after the consumer purchases the product, when the product is nut or other types and can generate shells or other garbage after use, the product is inconvenient to use or causes environmental pollution for finding a garbage bag or a garbage can; and fourthly, arranging an auxiliary bag for placing materials such as labels on the side surface of the packaging bag so as to facilitate the replacement of the labels at any time (for example, updating the quality guarantee period, updating the product appearance, updating the activity information and the like).

Moreover, for the arrangement of the pocket, a pocket needs to be formed on the side surface of the packaging bag main body, the pocket needs to be added through a certain hot melt adhesion step, hot melt adhesive is needed as an adhesive, the processing step and the material cost are increased, the processing procedure becomes complicated, the pocket type of the pocket is limited, the size of the accommodating cavity of the pocket is influenced, and the pocket cannot be flexibly added.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that above-mentioned sale, recycle, rubbish were placed, the utility model provides a wrapping bag structure, it can be on the wrapping bag main bag body simple and easy quick direct at least one of heat-seal attach the bag, simultaneously greatly reduced the processing degree of difficulty and material cost.

In order to achieve the above purpose, the solution of the present invention is:

a packaging bag structure is characterized in that a main bag body of the packaging bag comprises a front surface layer and a rear surface layer, two side edges of each surface layer are subjected to heat sealing, an accordion-shaped bag bottom is arranged at the lower end between the two surface layers, at least one surface layer is provided with at least one attached bag in a heat sealing mode, each surface layer sequentially comprises a polyolefin thin film layer, a middle layer and a polyolefin thin film layer in a compounding mode, and the bag bottom and the attached bag are respectively formed in a compounding mode by an outer layer and a polyolefin thin film layer.

Further, heat sealing is respectively carried out between two side edges of the two surface layers through polyolefin film layers to form side heat sealing edges, the bag bottom is positioned at the lower end of the side heat sealing edges, and after the polyolefin film layers in the bag bottom and the polyolefin film layers on the inner side surfaces of the two surface layers are respectively heat sealed, the bag bottom is formed at the lower end between the two surface layers.

Further, the polyolefin film layer in the attached bag is heat-sealed with the polyolefin film layer on each surface layer.

Furthermore, the other side of the outer layer of the attached bag also comprises a polyolefin film layer, and the attached bag sequentially comprises the polyolefin film layer, the outer layer and the polyolefin film layer.

Further, the middle layer in the surface layer is made of a biaxially oriented polyethylene terephthalate film, an aluminum foil, a biaxially oriented polyamide film, a vacuum aluminized biaxially oriented polyethylene terephthalate film or a composite film layer formed by a biaxially oriented polyamide film and a vacuum aluminized biaxially oriented polyethylene terephthalate film.

Further, the outer layer of the bag bottom and the auxiliary bag is made of a biaxially oriented polyethylene terephthalate film, an aluminum foil, a biaxially oriented polyamide film or a vacuum aluminized biaxially oriented polyethylene terephthalate film.

A packaging bag structure is characterized in that a main bag body of the packaging bag comprises a front surface layer and a rear surface layer, two side edges of each surface layer are subjected to heat sealing, an accordion-shaped bag bottom is arranged at the lower end between the two surface layers, at least one surface layer is provided with at least one attached bag in a heat sealing mode, and each surface layer, the bag bottom and the attached bag are respectively formed by compounding a polyolefin thin film layer and an outer layer.

Further, the polyolefin thin film layers of the two surface layers are opposite, the polyolefin thin film layer in the attached bag is positioned on the outer side of the outer layer of the surface layer, at least one hole is punched in the surface layer adjacent to the attached bag, the polyolefin thin film layer on the inner side of the attached bag penetrates through the hole and is heat-sealed with the polyolefin thin film layer in the non-adjacent surface layer, and the two polyolefin thin film layers are respectively heat-sealed between the two side edges of the two surface layers.

Further, the polyolefin thin film layers of the two face layers are opposite, a bag bottom is formed at the lower end between the two face layers, the polyolefin thin film layer in the attached bag is positioned on the outer side of the face layers, at least one coincident hole is sequentially punched at the face layers adjacent to the attached bag and the bag bottom between the two face layers respectively at the bag bottom, the polyolefin thin film layer on the inner side of the attached bag penetrates through the hole and is subjected to heat sealing with the polyolefin thin film layer in the non-adjacent face layer, and the polyolefin thin film layer in the bag bottom is subjected to heat sealing with the polyolefin thin film layer in the two opposite face layers.

Further, a folded bag bottom sheet is formed in the bottom of the two surface layers at the bag bottom, the bag bottom sheet comprises two transverse edges which are heat-sealed with the inner bottom edge of each surface layer, two longitudinal edges which are heat-sealed with the inner side edge of each surface layer are formed on two sides respectively, the polyolefin film layer attached with the bag is positioned on the outer side of the surface layer, at least one coincident hole is punched on the surface layer adjacent to the attached bag and the two longitudinal edges of the bag bottom sheet respectively, and the polyolefin film layer attached with the inner side of the bag penetrates through the hole and is heat-sealed with the polyolefin film layer in the non-adjacent surface layer.

The utility model discloses a packaging bag, the utility model discloses a surface course material, the bag end material and attach the bag material to the main bag body improve, utilize two liang of polyolefin film layer materials can directly carry out the characteristic advantage of heat-seal, make attach the bag can simply quick direct heat-seal to the main bag body on, greatly reduced the processing degree of difficulty and material cost etc.. The utility model discloses simple structure, processing is simple and convenient, and convenient to use when increasing the attached bag body in solving current wrapping bag is selling, recycle, rubbish is placed the problem that exists.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is a schematic structural view of the bag bottom of the first embodiment of the present invention after being unfolded;

fig. 3A is a schematic view of a layer structure of a surface layer in a first embodiment of the present invention;

fig. 3B is a schematic view of the layer structure of the bag bottom according to the first embodiment of the present invention;

fig. 3C is a schematic view of the layer structure of the pocket according to the first embodiment of the present invention;

fig. 3D is a schematic view of a layer structure of another form of the pocket according to the first embodiment of the present invention;

FIG. 4 is a schematic side view (in combination) of a first embodiment of the present invention;

fig. 5 is a schematic side view of the first embodiment of the present invention (combination two);

fig. 6 is a schematic side view (combination three) of the first embodiment of the present invention;

fig. 7 is a schematic structural view of a second embodiment of the present invention;

fig. 8 is a schematic structural view of a bag bottom according to a second embodiment of the present invention after being unfolded;

fig. 9 is a schematic view of a layer structure of a surface layer in a second embodiment of the present invention;

FIG. 10 is a schematic view showing a layer structure of a bag bottom according to a second embodiment of the present invention;

FIG. 11 is a schematic view showing a layer structure of a pocket according to a second embodiment of the present invention;

fig. 12 is a schematic side view of a second embodiment of the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

As shown in fig. 1 and 2, the packaging bag structure of the present invention includes a main bag body 1, and an accordion-shaped bag bottom 20 is formed by folding the bottom of the main bag body 1 inward. The main bag body 1 may be rectangular or trapezoidal with a narrow top and a wide bottom, and may be a standing bag, a three-side sealing bag, a square bottom bag, a five-side sealing bag, or the like.

The main bag body 1 includes front and rear surface layers 10, and side edges 11 of each surface layer 10 are heat sealed to form side heat seal edges 110, which seal both sides of the main bag body, and a bag bottom 20 is located at the lower end between the surface layers 10. The upper side of the main bag body 1 can be self-sealed, or an opening and the like can be arranged at the upper part of the main bag body 1 after the sealing is formed, and the sealing mode above the main bag body 1 can be selected according to the use requirement. The bottom edges 12 of the two panels are not heat sealed to each other and the bag bottom 20 is located between the bottom edges 12.

The utility model discloses in, the heat-seal has an at least pocket 3 on an at least surface course 10 of the main bag body 1 of wrapping bag, for making the processing of pocket 3 simple, as shown in fig. 3A to 3D, each surface course 10 is including a polyolefin thin layer (PO) 101, an intermediate level 102, the compound complex film that forms of a polyolefin thin layer 101 in proper order, and bag end 20 is including an outer 201 and the compound formation of a polyolefin thin layer 202, and pocket 3 is including an outer 301 and the compound formation of a polyolefin thin layer 302.

When the main bag body 1 is processed and assembled, the two side layers 10 are opposed to each other, the side edges 11 of the two side layers 10 are heat-sealed by the polyolefin film layers 101 to form the side heat seal edges 110, the bag bottom 20 is positioned at the lower end of the side heat seal edge 110, the polyolefin film layer 202 in the bag bottom 20 is heat-sealed with the polyolefin film layers 101 on the inner side surfaces of the two side layers 10, and then the bag bottom is formed at the lower end between the two side layers 10.

In the processing of the pocket 3, the polyolefin film 302 in the pocket 3 is directly faced to the face layer 10, and the polyolefin film layer 302 in the pocket 3 is directly heat-sealed to the polyolefin film layer 101 on each face layer 10, whereby the pocket 3 is directly heat-sealed to the face layer 10. As shown in fig. 4 and 5, the pocket 3 may be added to one surface layer 10 of the main bag body 1, or may be added to both surface layers 10. If the additional pocket 3 needs to be added, the other side of the outer layer 301 of the additional pocket 3 can also comprise a polyolefin film layer 302, and the additional pocket 3 sequentially comprises the polyolefin film layer 302, the outer layer 301 and the polyolefin film layer 302 to form a 3-layer structure. As shown in fig. 6, after the top sheet 10 is heat-sealed with one pocket 3, the heat sealing between two polyolefin film layers 302 between the two pockets 3 can be continuously performed, and a plurality of pockets 3 can be combined for use. Thereby directly heat-seal the surface course outside at main bag body 1 and form at least one pocket, increase the appearance chamber that can utilize in a flexible way.

Referring to fig. 1 and 2, the main bag body 1 and the auxiliary bag 3 are rectangular and have an opening formed thereon for directly placing fruit shell garbage or note paper. The material of the middle layer 102 of the surface layer 10 may be a biaxially oriented polyethylene terephthalate film (BOPET), an aluminum foil (AL), a biaxially oriented polyamide film (BOPA), a vacuum aluminized biaxially oriented polyethylene terephthalate film (mbope), or a composite film formed by a biaxially oriented polyamide film (BOPET) and a vacuum aluminized biaxially oriented polyethylene terephthalate film (mbope). The outer layers 201, 301 of the bag bottom 20 and the additional bag 3 may be made of biaxially oriented polyethylene terephthalate film (BOPET), aluminum foil (AL), biaxially oriented polyamide film (BOPA) or vacuum aluminized biaxially oriented polyethylene terephthalate film (mbope), respectively.

In the bag bottom 20, as shown in fig. 2, the bag bottom 20 is formed in a folded bag bottom 2 in two in the bottom of the two face layers 10, the bag bottom 2 includes two lateral sides 21 heat-sealed to the inner bottom side 121 of each face layer 10, two longitudinal sides 22 heat-sealed to the inner side 112 of each face layer 10 are formed on both sides, the inner side 112 is located at the lower end of the heat seal 110, and the polyolefin film layer 202 of the bag bottom 2 and the polyolefin film layer 101 on the inner side of the two face layers 10 are heat-sealed and fixed between the two face layers 10 to form the bag bottom.

Referring to fig. 7 to 12, in a second embodiment of the present invention, the main bag body 1 includes front and rear surface layers 10, two sides of each surface layer 10 are heat sealed, an accordion-folded bag bottom 20 is located at a lower end between the two surface layers 10, and at least one pocket 3 is heat sealed on at least one surface layer 10. In this embodiment, each face layer 10 comprises a polyolefin film layer 101 and an outer layer 103 which are compounded to form a composite film, the bag bottom 20 also comprises a polyolefin film layer 202 and an outer layer 203 which are compounded to form a composite film, and the attached bag 3 also comprises a polyolefin film layer 302 and an outer layer 303 which are compounded to form a composite film.

In the packaging bag formed by the material layers, when the packaging bag is processed, the polyolefin film layers 101 of the two surface layers 10 are opposite, the polyolefin film layer 202 in the attached bag 20 is positioned outside the outer layer 103 of the surface layer 10, in order to enable the attached bag 3 to be connected to the surface layer 10 through heat sealing, at least one hole 104 is punched on the surface layer 10 adjacent to the attached bag 3, the hole 104 is punched on the side edge 11 to be conveniently heat-sealed with the heat sealing edge 110, a plurality of holes 104 can be formed on the side edge 11, and heat sealing bonding points are formed at the holes. When heat sealing is performed, the polyolefin film layer 302 inside the pocket 3 is heat-sealed through the holes 104 and the polyolefin film layer 101 in the non-adjacent face layer 10, and the two polyolefin film layers 101 are heat-sealed between the two sides 11 of the two face layers 10 to form the side heat seal 110, so that the pocket 3 is heat-sealed outside the face layers 10 at the same time of heat-sealing the two sides 11 of the two face layers 10, and the formed pocket can be used for placing a note and the like.

In the bag bottom 20 portion, the polyolefin film layers 101 of the two face layers 10 are opposed to each other, the bag bottom 20 is formed at the lower end between the two face layers 10, the polyolefin film layer 302 in the pocket 3 is positioned outside the outer layer 102 of the face layer 10, and as shown in fig. 8 and 12, at least one overlapping hole 105, 204 is punched in the bag bottom in sequence in the face layer 10 adjacent to the pocket 3 and the bag bottom 20 between the two face layers 10, respectively, wherein the hole 105 is positioned at the joint with the bag bottom 20 in the face layer side 11, and the hole 204 is positioned on the bag bottom corresponding to the inside of the hole 105. At the time of heat-sealing, the polyolefin film layer 302 inside the pocket 3 is heat-sealed to the polyolefin film layer 101 in the non-adjacent face layer 10 through the through holes 105, 204, and the polyolefin film layer 202 in the pocket bottom 20 is heat-sealed to the polyolefin film layer 101 in the opposite face layer 10. Specifically, the bag bottom 20 forms a folded bag bottom 2 in the bottom of the two face layers 10, the bag bottom 2 includes two lateral sides 21 heat-sealed to the inner bottom edge 121 of each face layer 10, two longitudinal sides 22 heat-sealed to the inner side edge 112 of each face layer 10, respectively, are formed on both sides, the polyolefin film layer 302 of the pocket 3 is located outside the face layers 10, at least one hole 105, 204 is perforated on the face layers 10 adjacent to the pocket 3 and the two longitudinal sides 22 of the bag bottom 2, respectively, the polyolefin film layer 302 of the inner side of the pocket 3 is heat-sealed to the polyolefin film layer 202 of the non-adjacent face layer (i.e., the rear face layer) after passing through the hole 105, 204, so that the pocket 3 can also pass through the heat-sealed face layer of the folded bag bottom at the bag bottom, the pocket 3 is connected to the face layer 10, and the original bag shape of the main bag body can be maintained.

For the second embodiment, the materials of the top sheet, the bottom and the pocket are all the same, and the pocket is attached by perforating the materials except the outermost two portions so that the polyolefin film layers in the outermost two portions are in contact with each other and heat-sealing by heating. Compared with the direct heat sealing mode in the first embodiment, the punching mode of the embodiment saves a layer of polyolefin film layer material (PO) in material structure, and embodies the advantages of punching and heat sealing.

The utility model discloses a wrapping bag increases at least one in the at least side of the main bag body of wrapping bag and attaches the bag to increased the appearance chamber that can utilize in a flexible way, the utility model discloses a surface course material, the bag end material and the attaching bag material to the main bag body improve, utilize two liang of polyolefin film layer materials can directly carry out the characteristic advantage of heat-seal, make attach the bag can simply quick direct heat-seal to the main bag body on, greatly reduced the processing degree of difficulty and material cost etc.. The utility model discloses a wrapping bag simple structure, processing is simple and convenient, and convenient to use when increasing the attached bag body in solving current wrapping bag, the problem that exists such as selling, recycle, rubbish are placed.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.

Claims (10)

1. The utility model provides a wrapping bag structure, the main bag body of wrapping bag is two surface course around including, heat-seal between the both sides limit of each surface course, and one is interior to be located the lower extreme between the two surface courses, its characterized in that at the bottom of the accordion form bag: at least one surface layer is heat sealed with at least one attached bag, each surface layer sequentially comprises a polyolefin film layer, a middle layer and a polyolefin film layer, and the bag bottom and the attached bag respectively comprise an outer layer and a polyolefin film layer.

2. The packaging bag structure according to claim 1, wherein: and the polyolefin film layers in the bag bottom and the polyolefin film layers on the inner side surfaces of the two surface layers are respectively heat-sealed, so that a bag bottom is formed at the lower end between the two surface layers.

3. The packaging bag structure according to claim 1, wherein: the polyolefin film layer in the auxiliary bag is heat-sealed with the polyolefin film layer on each surface layer.

4. The packaging bag structure according to claim 1, wherein: the other side of the outer layer of the attached bag also comprises a polyolefin film layer, and the attached bag sequentially comprises the polyolefin film layer, the outer layer and the polyolefin film layer.

5. A bag structure as claimed in any one of claims 1 to 4, wherein: the middle layer in the surface layer is made of a biaxially oriented polyethylene terephthalate film, an aluminum foil, a biaxially oriented polyamide film, a vacuum aluminized biaxially oriented polyethylene terephthalate film or a composite film layer formed by the biaxially oriented polyamide film and the vacuum aluminized biaxially oriented polyethylene terephthalate film.

6. A bag structure as claimed in any one of claims 1 to 4, wherein: the outer layer of the bag bottom and the auxiliary bag is made of a biaxially oriented polyethylene terephthalate film, an aluminum foil, a biaxially oriented polyamide film or a vacuum aluminized biaxially oriented polyethylene terephthalate film.

7. The utility model provides a wrapping bag structure, the main bag body of wrapping bag is two surface course around including, heat-seal between the both sides limit of each surface course, and one is interior to be located the lower extreme between the two surface courses, its characterized in that at the bottom of the accordion form bag: at least one surface layer is heat sealed with at least one attached bag, and each surface layer, the bag bottom and the attached bag respectively comprise a polyolefin film layer and an outer layer which are compounded to form the attached bag.

8. The packaging bag structure according to claim 7, wherein: the polyolefin thin film layers of the two surface layers are opposite, the polyolefin thin film layer in the attached bag is positioned on the outer side of the surface layer, at least one hole is punched on the surface layer adjacent to the attached bag, the polyolefin thin film layer on the inner side of the attached bag penetrates through the hole and is subjected to heat sealing with the polyolefin thin film layer in the non-adjacent surface layer, and the two polyolefin thin film layers are subjected to heat sealing between the two side edges of the two surface layers respectively.

9. The packaging bag structure according to claim 8, wherein: the lower end between the two surface layers forms a bag bottom, at least one coincident hole is respectively punched on the surface layer adjacent to the attached bag and the bag bottom between the two surface layers at the bag bottom in sequence, and the polyolefin film layer in the bag bottom is heat-sealed with the polyolefin film layers in the two opposite surface layers.

10. The packaging bag structure according to claim 9, wherein: the bag bottom forms a folded bag bottom sheet in the bottoms of the two surface layers, the bag bottom sheet comprises two transverse edges which are heat-sealed with the inner bottom edge of the inner side of each surface layer, two longitudinal edges which are heat-sealed with the inner side edge of the inner side of each surface layer are formed on the two sides of the bag bottom sheet respectively, and at least one coincident hole is punched on the two longitudinal edges of the surface layer and the bag bottom sheet which are adjacent to the attached bag respectively.