CN211280073U

CN211280073U - Double-opening protective composite film

Info

Publication number: CN211280073U
Application number: CN201921554546.6U
Authority: CN
Inventors: 李俊; 伍秋涛; 林武辉
Original assignee: Suzhou Haishun Packaging Material Co ltd
Current assignee: Suzhou Haishun Packaging Material Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-08-18
Anticipated expiration: 2029-09-18

Abstract

The utility model provides a double-opening protective composite film, which comprises a first pre-opening layer, a first viscose layer, a second pre-opening layer, a second viscose layer, an aluminum foil layer, a third viscose layer and a polyethylene heat-sealing layer which are sequentially laminated from outside to inside; the second pre-opening layer comprises a plurality of grooves, and the grooves are uniformly arranged in a set area of the second pre-opening layer; the composite film is provided with double pre-opening layers, a plurality of grooves are arranged in a set area of a second pre-opening layer, and the grooves form pre-opening lines; the multilayer co-extrusion polyethylene resin film enables the burst strength of the polyethylene heat-sealing layer to be low, and after the first pre-opening layer is opened, the second pre-opening layer is opened through a set area and the composite film body is opened together with the polyethylene heat-sealing layer; the composite film is normally opened without a sawtooth cut when being cut; the double pre-opening layers increase the difficulty of opening the composite film by children and reduce the risk of children eating by mistake.

Description

Double-opening protective composite film

Technical Field

The utility model relates to a packaging material field especially relates to dual protection type complex film of opening.

Background

The soft double-aluminum package is a common packaging mode of the existing tablets and capsules, has the advantages that each tablet is independently packaged by utilizing the high barrier property of the aluminum foil composite film, the quality guarantee period of other adjacent tablets is not influenced after a single tablet is taken, and the cost is low.

At present, soft package aluminum packaging materials are generally as follows:

1. the cellophane/aluminum foil/polyethylene film has the advantages of easy tearing, but has the disadvantages of high cellophane cost and serious environmental pollution in the production process, so the dosage is gradually replaced by other packaging materials.

2. The paper/aluminum foil/polyethylene film has the same performance as the glass paper/aluminum foil/polyethylene film structure, but paper scraps are generated when the film is torn, and the risk of mistaken eating and paper fiber suction exists.

3. Polyester/aluminum foil/polyethylene films, a problem with such composite films is poor tear, which typically requires the following technical treatment: firstly, carrying out easy-to-tear surface treatment before compounding the polyester film, namely, carrying out surface damage treatment on the polyester film by using sand paper, wherein the side effect is that the polyester film is pressed through at a local point position, and the inner layer and the outer layer of a compound semi-finished product are bonded together due to glue permeation during compounding so as not to be subjected to subsequent processing; secondly, the abrasive paper particles fall off and adhere to the surface of the film, so that the composite appearance is poor and the cleanliness of the final product is influenced. And the cutting line of the medicine plate adopts a zigzag line, so that the easy-to-open property is improved. However, two problems exist in practice, namely that the polyester film surface is easy to tear, the treatment effect is unstable, the batch is unstable, some parts are easy to tear, and some parts have no easy-to-tear effect; secondly, the processed easy is not straight-line easy to tear, and the medicine plate containing a plurality of tablets is inconvenient to take and use in the follow-up process.

4. The gloss oil/aluminum foil/polyethylene film has good tearing effect, but the thickness of the aluminum foil is less than 25 microns, so that subsequent processing such as printing and compounding is difficult to perform, the three composite films can be made of the aluminum foil with the thickness of 7-9 microns, and the cost of the packaging material with the structure is almost multiplied.

In addition, the 4 common soft double aluminum packaging materials do not consider easy opening and child-proof function, because the soft double aluminum package is basically torn, but the basic action of the child is to tear by hand or teeth, so that the child is easy to open the medicine package by mistake and eat the tablets by mistake due to lack of general knowledge of medicine safety if the child touches the medicine board carelessly, thereby bringing unpredictable life safety risk.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a dual protection type complex film of opening. This complex film is through setting up first opening layer and second in advance and opening the layer to opening the line in advance in the second in advance the preparation of the specific position on the layer, guaranteeing that each tablet can both independently conveniently take out, dual opening increases children and opens the difficulty degree of packing and has avoided above-mentioned problem.

The utility model provides a double-opening protective composite film, which comprises a composite film body, wherein the composite film body comprises a first pre-opening layer, a first viscose layer, a second pre-opening layer, a second viscose layer, an aluminum foil layer, a third viscose layer and a polyethylene heat-sealing layer; the first pre-opening layer, the first adhesive layer, the second pre-opening layer, the second adhesive layer, the aluminum foil layer, the third adhesive layer and the polyethylene heat-sealing layer are sequentially attached from outside to inside; the first pre-opening layer and the second pre-opening layer are fixedly bonded through the first adhesive layer;

the second pre-opening layer comprises a plurality of grooves, and the grooves are uniformly arranged in a set area of the second pre-opening layer; after the first pre-opening layer is opened, opening the second pre-opening layer through the set area and opening the composite film body together with the polyethylene heat-sealing layer; the first pre-opening layer is used for protecting a child from opening the composite film body.

Preferably, the composite film body further comprises a printing layer, the first pre-opening layer is paper, and the printing layer is attached to the surface of the paper.

Preferably, the second pre-opening layer comprises a biaxially oriented polypropylene film, the surface of the biaxially oriented polypropylene film is provided with a plurality of protrusions, and the protrusions are used for increasing the adhesive force between the biaxially oriented polypropylene film and the first adhesive layer and between the biaxially oriented polypropylene film and the second adhesive layer.

Preferably, the composite film body further includes a fluorescent layer, the fluorescent layer is located between the first adhesive layer and the second pre-opening layer, and the fluorescent layer is disposed in the setting region.

Preferably, the polyethylene heat-seal layer comprises a multilayer co-extruded polyethylene resin film.

Preferably, the thickness of the polyethylene heat-sealing layer ranges from 25um to 35 um.

Preferably, the thickness of the set area ranges from 12um to 18 um.

Preferably, the second adhesive layer comprises polyurethane and acrylic resin; the thickness range of second viscose layer is 1.5um-3.5 um.

Preferably, the thickness of the aluminum foil layer ranges from 7um to 30 um.

Preferably, the thickness of the third adhesive layer ranges from 10um to 15 um.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a double-opening protective composite film, which is provided with a plurality of grooves in a set area of a second pre-opening layer by arranging double pre-opening layers, wherein the grooves form pre-opening lines; the multilayer co-extrusion polyethylene resin film enables the burst strength of the polyethylene heat-sealing layer to be low, and after the first pre-opening layer is opened, the second pre-opening layer is opened through a set area and the composite film body is opened together with the polyethylene heat-sealing layer; the composite film is normally opened without a sawtooth cut when being cut; the double pre-opening layers increase the difficulty of opening the composite film by children and reduce the risk of children eating by mistake.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a schematic view of the overall stacking of the double-opening protective composite membrane of the present invention;

FIG. 2 is a schematic structural view of the double-opening protective composite membrane of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2;

reference numerals: 10. printing layer, 20, first pre-opening layer, 30, first adhesive layer, 40, fluorescent layer, 50, second pre-opening layer, 510, groove, 60, second adhesive layer, 70, aluminum foil layer, 80, third adhesive layer, 90, polyethylene heat sealing layer, 100 and medicine containing cavity.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

A dual-opening protective composite film, as shown in fig. 1-3, includes a composite film body, which includes a first pre-opening layer 20, a first adhesive layer 30, a second pre-opening layer 50, a second adhesive layer 60, an aluminum foil layer 70, a third adhesive layer 80, and a polyethylene heat-sealing layer 90; the first pre-opening layer 20, the first adhesive layer 30, the second pre-opening layer 50, the second adhesive layer 60, the aluminum foil layer 70, the third adhesive layer 80 and the polyethylene heat-sealing layer 90 are sequentially attached from outside to inside; the first pre-opening layer 20 and the second pre-opening layer 50 are fixedly bonded through the first adhesive layer 30;

the second pre-opening layer 50 includes a plurality of grooves 510, and the plurality of grooves 510 are uniformly disposed in a set region of the second pre-opening layer 50; after the first pre-opening layer 20 is opened, the second pre-opening layer 50 is opened through the set area and the composite film body is opened together with the polyethylene heat-sealing layer 90; the first pre-opening layer 20 is intended to protect a child from opening the composite membrane body. In one embodiment, a laser cutting process is performed on a predetermined area of the second pre-opening layer 50 to form a plurality of uniformly distributed grooves 510, the plurality of grooves 510 form a pre-opening line, and the plurality of grooves 510 preferably form a semicircular shape matching a finger to facilitate opening of the composite film body by the finger.

The polyethylene heat-sealing layer 90 is a multilayer co-extrusion polyethylene resin film, the multilayer co-extrusion technology directly adopts more than three plastic particles as raw materials, each plastic is respectively melted and plasticized by a plurality of extruders, and then the plastic is fed into a neck mold for further processing. The multilayer co-extrusion polyethylene resin film prepared by the processing method is different from a common polyethylene film in that the film has low burst strength and low breaking strength (namely elongation); the thickness of the polyethylene heat-sealing layer is relatively thin, and the thickness range is 25-35 um. After the first pre-opening layer 20 is opened, the second pre-opening layer 50 is opened through a set area and the composite film body is opened together with the polyethylene heat-sealing layer 90; the composite film is normally opened without a sawtooth cut when being cut; the double pre-opening layers increase the difficulty of opening the composite film by children and reduce the risk of children eating by mistake.

In a specific embodiment, the composite film body further includes a printing layer 10, the first pre-opening layer 20 is paper, and the printing layer 10 is attached to the surface of the paper; the first adhesive layer 30 is attached to the peripheral edges of the first pre-opening layer 20 and the second pre-opening layer 50. In the embodiment, basic information, relevant patterns and the like of a product are printed on a printing layer of paper, and in addition, the type of the paper can be selected to be proper gram weight, size and the like according to needs, and coated paper is preferred in the embodiment. The first pre-opening layer 20 and the second pre-opening layer 50 are attached through the first adhesive layer 30, the first adhesive layer 30 is coated on the peripheral edges of the first pre-opening layer 20 and the second pre-opening layer 50, namely the middle area of the first pre-opening layer 20 and the second pre-opening layer 50 is a cavity filled with air, and when the first pre-opening layer 20 needs to be opened, a user opens the first pre-opening layer 20 through twisting the middle area of paper.

In one embodiment, the second pre-opening layer 50 comprises a biaxially oriented polypropylene film, and the surface of the biaxially oriented polypropylene film is provided with a plurality of protrusions (not shown), and the plurality of protrusions are used for increasing the adhesion between the biaxially oriented polypropylene film and the first adhesive layer and the second adhesive layer. In this embodiment, a biaxially oriented polypropylene film is preferred, and the biaxially oriented polypropylene film is generally a multilayer co-extruded film, and is prepared by co-extruding polypropylene particles to form a sheet, and then stretching the sheet in longitudinal and transverse directions. Due to the orientation of the stretched molecules, the film has good physical stability, mechanical strength and air tightness. However, the surface of the biaxially oriented polypropylene film is non-polar, has high crystallinity, i.e., has poor adhesion to adhesives, and is subjected to surface treatment. Specifically, the surface of the biaxially oriented polypropylene film is provided with a plurality of protrusions, and the protrusions are uniformly distributed on the surface of the biaxially oriented polypropylene film. The surface of the adhesive is provided with a plurality of bulges which can increase the binding force between the biaxially oriented polypropylene film and the adhesive. The alternative material of the biaxial stretching polypropylene film can also be biaxial stretching polyester film and biaxial stretching polyimide film.

The thickness range of the set area is 12um-18 um. In the present embodiment, a plurality of grooves 510 are formed in the predetermined area after the laser cutting process, and the thickness of the second pre-opening layer 50 in the predetermined area is in a range of 12um to 18 um. The grooves 510 cut by the laser processing make it easier, more convenient and faster to open the second pre-opening layer 50. The setting area can be any position of the second pre-opening layer, and in the embodiment, the setting area is preferably arranged in the area of each medicine containing cavity, so that each medicine can be taken out conveniently.

In one embodiment, the composite film body further includes a fluorescent layer 40, the fluorescent layer 40 is located between the first adhesive layer 30 and the second pre-opening layer 50, and the fluorescent layer 40 is disposed in the setting region. In the embodiment, the fluorescent layer 40 includes a plurality of fluorescent lights, and the fluorescent lights are disposed in the set region, so that the user can conveniently open the second pre-opening layer 50 by recognizing the position of the set region through the fluorescent lights at night after the user opens the first pre-opening layer 20.

In one embodiment, the second adhesive layer 60 comprises polyurethane and acrylic; the thickness range of the second adhesive layer 60 is 1.5um-3.5 um. In this embodiment, the second adhesive layer 60 includes polyurethane and acrylic resin, and when in use, the polyurethane and the acrylic resin are generally uniformly mixed and then coated on the second pre-opening layer 50, and are bonded to the aluminum foil after being dried by an oven, and the solvent-free adhesive does not need to be dried, and is then chemically cross-linked by heat preservation to form an adhesive layer with a thickness ranging from 1.5um to 3.5 um. The aluminum foil layer is a calendering processing formed aluminum foil, the state can be soft state or hard state, the aluminum foil layer is used as a barrier layer of the composite film, and the thickness range is 7-30 um.

In one embodiment, the thickness of the third adhesive layer 80 ranges from 10um to 15 um. In this embodiment, the third adhesive layer 80 is divided into dry lamination and extrusion lamination according to different lamination processes; the dry compounding is also called solvent-free compounding, and the material components and the functional action of the dry compounding are the same as those of the second adhesive 60. The extrusion compounding is the modified polyolefin resin, and has good adhesion with the surface of the aluminum foil.

The composite film provided by the utility model is provided with a plurality of grooves 510 in the setting area of the second pre-opening layer 50 by arranging double pre-opening layers, and the plurality of grooves 510 form pre-opening lines; the multilayer co-extrusion polyethylene resin film enables the burst strength of the polyethylene heat-sealing layer to be low, and after the first pre-opening layer 20 is opened, the second pre-opening layer 50 is opened through a set area and the composite film body is opened together with the polyethylene heat-sealing layer 90; the composite film is normally opened without a sawtooth cut when being cut; the double pre-opening layers increase the difficulty of opening the composite film by children and reduce the risk of children eating by mistake.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. The double-opening protection type composite film is characterized by comprising a composite film body, wherein the composite film body comprises a first pre-opening layer, a first adhesive layer, a second pre-opening layer, a second adhesive layer, an aluminum foil layer, a third adhesive layer and a polyethylene heat-sealing layer; the first pre-opening layer, the first adhesive layer, the second pre-opening layer, the second adhesive layer, the aluminum foil layer, the third adhesive layer and the polyethylene heat-sealing layer are sequentially attached from outside to inside; the first pre-opening layer and the second pre-opening layer are fixedly bonded through the first adhesive layer;

2. The dual opening protective composite film of claim 1, wherein the composite film body further comprises a printed layer, the first pre-opening layer is paper, and the printed layer is adhered to the surface of the paper; the first adhesive layer is attached to the peripheral edges of the first pre-opening layer and the second pre-opening layer.

3. The dual opening protection type composite film according to claim 1 or 2, wherein the second pre-opening layer comprises a biaxially oriented polypropylene film, a plurality of protrusions are disposed on a surface of the biaxially oriented polypropylene film, and the plurality of protrusions are used for increasing adhesion between the biaxially oriented polypropylene film and the first adhesive layer and between the biaxially oriented polypropylene film and the second adhesive layer.

4. The dual-open guard type composite film of claim 1 or 2, wherein the composite film body further comprises a fluorescent layer disposed between the first adhesive layer and the second pre-open layer, the fluorescent layer being disposed in the predetermined region.

5. The dual opening protective composite film of claim 1 or 2 wherein said polyethylene heat seal layer comprises a plurality of coextruded polyethylene resin films.

6. The dual opening protective composite film of claim 5 wherein the polyethylene heat seal layer has a thickness in the range of 25um to 35 um.

7. The dual opening protective composite film of claim 1 wherein the thickness of the defined region is in the range of 12um to 18 um.

8. The dual opening protective composite film of claim 1, wherein said second adhesive layer comprises polyurethane and acrylic; the thickness range of second viscose layer is 1.5um-3.5 um.

9. The dual opening protective composite film of claim 1 wherein the aluminum foil layer has a thickness in the range of 7um to 30 um.

10. The dual opening protective composite film of claim 1, wherein the thickness of the third adhesive layer is in the range of 10um to 15 um.