CN216762855U - Aluminized packaging film with visible window and packaging bag - Google Patents

Abstract

The utility model provides a packaging film aluminizes with visual window, including the printing layer, transfer printing film and heat-seal layer aluminize, wherein, the printing layer has the printing ink layer including printing substrate epimembranal printing, the transfer printing film aluminizes including aluminizing the layer in proper order, from type layer and aluminize the substrate layer, compound through first glue layer between printing ink layer and the aluminizing layer, have at least one first fretwork layer of not inking in the printing ink layer, correspond first fretwork layer in the first glue layer and form the second fretwork layer of not rubberizing, correspond in the aluminizing layer and form the non-sticky region in the part outside second fretwork region, the non-sticky region is peeled off along with the substrate layer aluminizing after the substrate layer tears from aluminizing, form the visual area of fretwork in aluminizing the layer, from type layer rethread second glue layer and heat-seal layer complex. The utility model can make the packaging film have dual effects of aluminizing and visualization, and realize environment-friendly light-weight cutting packaging.

Description

Aluminized packaging film with visible window and packaging bag

Technical Field

The utility model relates to the field of packaging materials, in particular to an aluminum-plated packaging film with a visible window and a packaging bag.

Background

The aluminum-plated packaging film is widely used for packaging products such as cigarettes, wines, bottle labels, tea leaves, foods, cosmetics, daily chemicals, general merchandise, gifts, artware and the like due to the exquisite appearance and good performance of the aluminum-plated packaging film. There are three main forms of aluminizing that needs to be achieved in existing packaging:

1. an aluminized film (about 10-40 μm) is compounded in a composite layer structure, as shown in fig. 1, a packaging film comprises a printing base material film, an ink layer, a glue layer and a heat sealing layer, and the aluminized film can only show the aluminized effect and cannot be seen from an inner package;

for such a method or product of aluminizing packaging, the following drawbacks exist: the packing that can only have the effect of aluminizing, but not the visual effect that can see the content, the aluminizer in the aluminizer complex film comprises aluminizer and substrate film, and the aluminizer only accounts for 300 ~ 500 angstroms meters's thickness, and the substrate film needs to occupy 10 ~ 40 mu m, makes the thickness of packing inevitable thickening like this, and the unable lightweight that realizes of packing can't be for the environment burden reduction.

2. For the package requiring visible content, as shown in fig. 2, when the packaging film contains an opaque aluminum-plated material, the intermediate layer needs to be die-cut in a special manner, so as to realize visualization;

for such a method or product of aluminizing packaging, the following drawbacks exist: the position of a general design window is in the shape of a special pattern, and a simple window opening mode such as a conventional rectangular frame is seldom adopted, so a die cutting alignment mode (in figure 2, hollowing needs to be formed in an ink layer, and hollowing is formed in an aluminized film through die cutting) is required, the alignment mode needs to be accurate, if deviation occurs, two positions of a die cutting visible window and a printing reserved window cannot be superposed, the apparent visual effect is poor, the mode requires ultrahigh mechanical positioning precision, and the process difficulty is large. Meanwhile, the thickness of the base material of the aluminizer needs to be increased, and the packaging does not show light weight;

3. if aluminum plating is to be realized and some contents are required to be seen in the window, as shown in fig. 3, the existing method is to remove aluminum plating on the outer printing film (the position of the visible window in the ink layer is coated with a solvent-based or water-based release layer), then wash off the film coating layer with the upper release layer by using a solvent or water washing mode (the release layer and the solvent or water are the same type of substance and use the principle of similar intermiscibility), and finally compound the required layer structure, so that aluminum plating and window opening are realized.

For such a method or product of aluminizing packaging, the following drawbacks exist: although the dual effects of removing the aluminized substrate and visualization are achieved, aluminizing at the corresponding position needs to be washed away in a solvent and water mode, and the washed aluminizing is environmental pollution waste water, is large in pollution, causes certain pressure to the ecological environment, and is not very environment-friendly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an aluminized packaging film with a visible window and a packaging bag, which can enable the packaging film to have dual effects of aluminizing and visualization and realize environment-friendly light-weight packaging.

In order to achieve the above purpose, the solution of the utility model is:

the utility model provides a packaging film aluminizes with visual window, including the printing layer, transfer printing film and heat-seal layer aluminize, wherein, the printing layer has the printing ink layer including printing substrate epimembranal printing, the transfer printing film aluminizes including aluminizing the layer in proper order, from type layer and aluminize the substrate layer, compound through first glue layer between printing ink layer and the aluminizing layer, have at least one first fretwork layer of not inking in the printing ink layer, correspond first fretwork layer in the first glue layer and form the second fretwork layer of not rubberizing, correspond in the aluminizing layer and form the non-sticky region in the part outside second fretwork region, the non-sticky region is peeled off along with the substrate layer aluminizing after the substrate layer tears from aluminizing, form the visual area of fretwork in aluminizing the layer, from type layer rethread second glue layer and heat-seal layer complex.

Further, the aluminized layer is transferred to the back side of the ink layer through the adhesive effect of the first glue layer, and the non-adhesive area in the aluminized layer is torn away along with the aluminized base material layer to form a hollowed-out visible area.

Furthermore, a stripping area is formed in the release layer corresponding to the non-adhesive area of the aluminized layer, and the non-adhesive area and the stripping area are stripped along with the aluminized substrate layer.

Further, the thickness of the aluminized film is 300-500 angstrom meters, and the thickness of the aluminized substrate layer is 10-20 mu m.

Furthermore, at least one functional film layer is compounded on the outer side of the second glue layer, and the outer side of the functional film layer is compounded with a heat sealing layer through a third glue layer.

A packaging bag is made of the aluminized packaging film with the visible window through connection and packaging.

After the structure is adopted, the aluminizing transfer film is used in the layer structure, the aluminizing layer is transferred onto the printing layer, and due to the fact that the hollow-out areas are reserved in the printing layer and the glue layer, the corresponding areas needing hollow-out in the aluminizing layer are not sticky, after the aluminizing base material layer is peeled off, a visible window corresponding to the hollow-out areas can be reserved in the aluminizing layer, so that the dual effects of aluminizing and visualization are achieved, a solvent and water washing mode is not needed, environment-friendly light-weight cutting packaging is achieved, and meanwhile the peeled aluminizing base material film can be recycled.

Drawings

FIG. 1 is a schematic view of a layer structure of an aluminum-plated packaging film in the prior art;

FIG. 2 is a schematic view of a layer structure of another prior art aluminum-plated packaging film;

FIG. 3 is a schematic view of a layer structure of another aluminum-plated packaging film in the prior art;

FIG. 4 is a schematic view of the layer structure of the present invention (without the heat-sealable layer being laminated);

FIG. 5 is a schematic structural view of the composite heat-sealable layer of the present invention;

FIG. 6 is a schematic structural diagram of other functional layers on the composite film 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 specific examples.

As shown in fig. 4, the present invention discloses an aluminum-plated packaging film with a visible window, which includes a printing layer 1, an aluminum-plated transfer film 2 and a heat-sealing layer 3. Wherein, the printing layer 1 includes that printing substrate membrane 11 is printed on has printing ink layer 12, and transfer printing film 2 of aluminizing includes aluminizing layer 21, release layer 22 and aluminizing substrate layer 23 in proper order, compounds through first glue layer 4 between printing ink layer 12 and the aluminizing layer 21.

In order to realize the visual window effect, according to the present invention, as shown in fig. 4 and 5, a first hollow-out layer 121 is formed in an area of the ink layer 12 where at least one area is not inked, a second hollow-out layer 41 without glue is formed in the first glue layer 4 corresponding to the first hollow-out layer 121, and meanwhile, a non-adhesive area 211 is formed in the portion of the aluminum plating layer 21 corresponding to the outside of the second hollow-out area 41, because there is no adhesion of the first glue layer 4, the non-adhesive area 211 of the aluminum plating layer 21 can be peeled off along with the aluminum plating base layer 23 after the aluminum plating base layer 23 is peeled off, so that a visual area without an aluminum plating layer is formed in the aluminum plating layer 21, and the aluminum plating layer 21 is transferred to the back side of the ink layer 12 through the adhesion of the first glue layer 4 to form the aluminum plating effect, and the non-adhesive area in the aluminum plating layer forms the hollow-out visual area after the aluminum plating base layer is peeled off. The non-adhesive area 211 corresponding to the aluminum plating layer in the release layer 22 is formed with a peeling area 221, because the adhesiveness of the aluminum plating transfer film 2 is small, the aluminum plating layer 21 is transferred to the ink layer along with the first glue layer 4, and the non-adhesive area 211 and the peeling area 221 are peeled off along with the aluminum plating base material layer 23, so that the areas corresponding to the ink layer 12 in the aluminum plating layer 21 and the release layer 22 without ink are formed with hollowed-out visible areas. Then, the release layer 22 is compounded with the heat seal layer 3 through the second glue layer 5 to form a composite film.

Wherein, the transfer printing film is aluminizedThe substrate 2 includes an aluminum-plated layer 21, a release layer 22, and an aluminum-plated substrate layer 23, the release layer 22 can reduce the adhesion between the aluminum-plated layer 21 and the aluminum-plated substrate layer 23, and the aluminum-plated substrate layer 23 can be PET (polyethylene terephthalate) or BOPP (biaxially oriented polypropylene). The thickness of the aluminum-plated film is 300-500 angstroms (1-10 angstroms)^-10m), the thickness of the aluminized base material layer is 10-20 um.

As shown in fig. 6, at least one functional film layer 6, such as other transparent materials like NY (nylon layer) or PET (polyethylene terephthalate), may be further compounded on the outer side of the second glue layer 5. The outer side of the functional film layer 6 can be compounded with the heat sealing layer 3 through the third glue layer 7, so that the packaging film is compounded to form a multilayer structure according to the use requirement.

Above-mentioned aluminized packaging film accessible with visual window makes the wrapping bag after connecting the encapsulation, can have at least one visual window region according to the packaging requirement design on the wrapping bag, and various fretwork patterns appear in the cooperation aluminized layer, satisfy diversified demand.

After the above structure is adopted, when the film is compounded into a packaging film, referring to fig. 5, the film is formed by printing a base material film → printing → gluing → compounding → an aluminum plating transfer film → peeling off the aluminum plating base material of the aluminum plating transfer film → compounding, leaving a layer structure film to be designed. According to the utility model, the aluminized transfer film is used in the layer structure, the aluminized layer is transferred onto the printed layer, then the required layer structure is compounded, as the hollow-out areas are reserved in the printed layer and the glue layer, the corresponding hollow-out areas in the aluminized layer have no viscosity, and after the aluminized base material layer is stripped, a visible window corresponding to the hollow-out areas can be reserved in the aluminized layer, so that the dual effects of aluminizing and visualization are realized, a solvent and water washing mode is not needed, an environment-friendly compounding mode is replaced, the environment-friendly light-weight cutting packaging is realized, and meanwhile, the stripped aluminized base material film can be recycled.

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

Claims (6)

1. An aluminized packaging film having a visible window, comprising: including the printing layer, transfer printing film and the heat-seal layer aluminizes, wherein, the printing layer has the printing ink layer including printing on the substrate membrane, the transfer printing film aluminizes includes aluminized layer in proper order, from type layer and aluminized substrate layer, compound through first glue layer between printing ink layer and the aluminized layer, have at least one first fretwork layer of not inking in the printing ink layer, correspond first fretwork layer in the first glue layer and form the second fretwork layer of not rubberizing, correspond in the aluminized layer partially outside second fretwork area and form non-stick region, non-stick region is peeled off along with the substrate layer of aluminizing after the substrate layer of aluminizing tears off, form the visual district of fretwork in aluminized layer, it is compound with the heat-seal layer to leave type layer rethread second glue layer.

2. An aluminum-plated packaging film having a visual window according to claim 1, wherein: the aluminized layer is transferred to the back side of the ink layer through the adhesion effect of the first glue layer, and the non-adhesion area in the aluminized layer forms a hollowed-out visible area after being torn away along with the aluminized base material layer.

3. An aluminum-plated packaging film having a visual window according to claim 2, wherein: the non-adhesive area corresponding to the aluminized layer in the release layer forms a stripping area, and the non-adhesive area and the stripping area are stripped along with the aluminized substrate layer.

4. An aluminum-plated packaging film having a visual window according to claim 1, wherein: the thickness of the aluminized film is 300-500 angstrom meters, and the thickness of the aluminized base layer is 10-20 mu m.

5. An aluminum-plated packaging film having a visual window according to claim 1, wherein: at least one functional film layer is compounded on the outer side of the second glue layer, and the outer side of the functional film layer is compounded with a heat sealing layer through a third glue layer.

6. A kind of wrapping bag, its characterized in that: the aluminum-plated packaging film with a viewing window according to any one of claims 1 to 5 is manufactured by connecting packaging.

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