CN213947724U

CN213947724U - Aluminum-free high-barrier separation type facial mask composite film

Info

Publication number: CN213947724U
Application number: CN202022334202.3U
Authority: CN
Inventors: 王锡权; 王晓明
Original assignee: Harbin Inati On Pharmaceutical Packaging New Material Technology Co ltd
Current assignee: Harbin Pengcheng New Material Technology Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-08-13
Anticipated expiration: 2030-10-19

Abstract

The utility model provides an aluminium-free high resistant separates disconnect-type facial mask complex film, relates to soft-packing technical field, includes: the heat-seal layer comprises a protective layer (1), an adhesive layer (2) and a heat-seal layer, wherein the heat-seal layer comprises a first heat-seal layer (3) and a second heat-seal layer (4), the protective layer (1), the adhesive layer (2) and the heat-seal layer are sequentially stacked from top to bottom, and the first heat-seal layer (3) and the second heat-seal layer (4) are closely adjacent and arranged in parallel.

Description

Aluminum-free high-barrier separation type facial mask composite film

Technical Field

The utility model relates to a soft-packing technical field specifically is a no aluminium high separation disconnect-type facial mask complex film.

Background

The traditional facial mask is formed by putting a facial mask and essence into a bag, and because the essence contains a large amount of moisture and nutrient components and is soaked in the essence for a long time, a good environment for survival and propagation of various microorganisms is formed, so that preservative components are usually added into the essence, and needless to say, the preservative components have no benefit on the skin of a human. Besides the preservative, the mixed package of the mask and the essence has the following disadvantages:

1. the fiber membrane cloth is easy to generate bacteria in a humid environment, and although the preservative is added, the bacteria cannot be killed;

2. after long-term soaking, the stability and effectiveness of active ingredients in the essence are greatly reduced;

3. the water absorption capacity of the membrane cloth is reduced, so that essence, especially silk mask, can not be hung, water can not be hung at all, and only thickening agent can be added.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aiming at the problem that various microorganisms are easily formed when the facial mask is soaked in essence for a long time due to the fact that the essence contains a large amount of water and nutrient components in the prior art, the aluminum-free high-barrier separation type facial mask composite membrane is provided.

The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:

an aluminum-free high barrier separation type facial mask composite membrane, comprising: the heat-seal layer comprises a protective layer 1, an adhesive layer 2 and a heat-seal layer, wherein the heat-seal layer comprises a first heat-seal layer 3 and a second heat-seal layer 4, the protective layer 1, the adhesive layer 2 and the heat-seal layer are sequentially stacked, and the first heat-seal layer 3 and the second heat-seal layer 4 are closely adjacent and arranged in parallel.

Further, the protective layer 1 is a BOPP film or a BOPET film.

Further, the adhesive layer 2 includes anhydride-modified polyethylene, linear polyethylene, and a foaming agent.

Further, the first heat-sealing layer 3 comprises a polyethylene layer 5, a cycloolefin copolymer layer 6, a first A bonding resin layer 7, an EVOH layer 8, a nylon layer 9, a second A bonding resin layer 10 and an EVA layer 11 in sequence from top to bottom;

the second heat sealing layer 4 is sequentially provided with a polyethylene layer 5, a cycloolefin copolymer layer 6, a first A bonding resin layer 7, an EVOH layer 8, a nylon layer 9, a B bonding resin layer 12 and a polypropylene layer 13 from top to bottom.

Further, the first a bonding resin layer 7 is a mixture of an acid anhydride modified polyethylene and a linear polyethylene in a mass ratio of 1: 3.

Further, the B bonding resin layer 12 is 100% anhydride-modified polypropylene.

Further, the nylon layer 9 is homopolynylon.

Further, the thickness of the cycloolefin copolymer layer 6 is not less than 20 μm.

The utility model has the advantages that:

the extrusion compounding process is used, so that the sealing surface of the heat sealing layer is made of two different materials, which cannot be realized by dry compounding; after EVA and PP heat seal, under the same heat-seal temperature, through adjusting under pressure size or the same pressure, can realize the strippable heat-seal intensity that the numerical value is 10-20N 15mm through adjusting the temperature height, when making the bag, only need to scald sword pressure or temperature with the bag trilateral and be greater than and separate and scald sword pressure, can realize two regional separations of facial mask and essence, and press hard a little when using, separate and scald sword department and just can be peeled off, realized the mixing of facial mask and essence, do not need additionally to add other partition parts again, preparation simple process.

The layers adopt the extrusion compounding and multi-layer co-extrusion ways, so that the defects of solvent residue, peculiar smell and the like of dry compounding are avoided; compared with a dry composite adhesive layer, the thickness of the first adhesive layer is 9-12 microns, which is about 3-4 times of the thickness of the adhesive layer, and the foaming agent added into the first adhesive layer can ensure that a certain number of small bubbles are randomly distributed in the adhesive layer, and the small bubbles can not only increase the plump hand feeling, but also play a certain role in buffering when the bag is sealed.

Although the heat sealing of a single material can realize peelable heat sealing, the peel strength is not easy to control and is not easy to control in a stable numerical range. The CPP and EVA butt-sealing structure is used, so that the material cost is lower, and the performance is more stable.

The utility model discloses when structural design, the whole of use is the plastics material, uses the cyclic olefin copolymer of high water-resistant material and the EVOH of high oxygen resistance to arrange from top to bottom moreover, and the difference uses the aluminium foil as barrier material with ordinary product. Along with the increase of environmental protection, the high-barrier plastic composite film is more beneficial to environmental protection because the aluminum-plastic composite film can not be recycled.

Because the facial mask essence permeates the polyolefin materials on ordinary heat-seal layer very easily, if not add resistant infiltration material in the heat-seal layer, the essence permeates each layer of complex film very easily, and it is long-term, just can make the complex film destroyed, loses the protective capacities, the utility model discloses when structural design, all adopt the crowded membrane altogether of nylon in first, second heat-seal layer, and nylon has very good resistant permeability, can be perfect compensate polyolefin materials not resistant infiltration's shortcoming, avoided the problem that the essence infiltration corrodes the complex film.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of a first heat-sealing layer of the present invention;

FIG. 3 is a schematic structural view of a second heat-sealing layer of the present invention;

fig. 4 is a schematic view of the first heat-sealing layer and the second heat-sealing layer of the present invention.

Detailed Description

The first embodiment is as follows: specifically describing the present embodiment with reference to fig. 1, the aluminum-free high barrier separation type facial mask composite film according to the present embodiment includes: the heat-seal layer comprises a protective layer 1, an adhesive layer 2 and a heat-seal layer, wherein the heat-seal layer comprises a first heat-seal layer 3 and a second heat-seal layer 4, the protective layer 1, the adhesive layer 2 and the heat-seal layer are sequentially stacked, and the first heat-seal layer 3 and the second heat-seal layer 4 are closely adjacent and arranged in parallel.

The protective layer can be a BOPP film or a BOPET film, both of which have very high transparency and can be printed with exquisite decorative patterns on the surface. The BOPP film and the BOPET film are subjected to biaxial tension, so that various mechanical properties and heat resistance are greatly improved, and the BOPP film and the BOPET film are suitable for being used as protective layers of composite packaging films and have the thickness of 12-22 mu m.

The adhesive layer is a mixture layer of anhydride modified polyethylene, linear polyethylene and a proper amount of foaming agent, is used for adhering the protective layer and the heat sealing layer, and has the thickness of 10-12 mu m.

The heat-sealing layer comprises a first heat-sealing layer and a second heat-sealing layer, and the first heat-sealing layer and the second heat-sealing layer are closely adjacent, parallel and not overlapped.

The first heat sealing layer sequentially comprises a polyethylene layer, a cycloolefin copolymer layer, an A bonding resin layer, an EVOH layer, a nylon layer, an A bonding resin layer and an EVA layer from top to bottom, and the total thickness is 60-90 mu m.

The second heat-sealing layer sequentially comprises a polyethylene layer, a cycloolefin copolymer layer, an A bonding resin layer, an EVOH layer, a nylon layer, a B bonding resin layer and a polypropylene layer from top to bottom, and the total thickness of the second heat-sealing layer is 60-90 mu m.

The glass transition temperature Tg of the cycloolefin copolymer in the first heat sealing layer and the second heat sealing layer is 78 ℃, so that the composite film has better stiffness integrally, and the thickness of the layer must be more than or equal to 20 mu m.

The A bonding resin layer is a mixture of anhydride modified polyethylene and linear polyethylene in a mass ratio of 1:3, and the B bonding resin layer is 100% anhydride modified polypropylene.

The nylon layers in the first heat-sealing layer and the second heat-sealing layer are made of homopolymerized nylon and have good medium resistance.

Detailed description of the invention

1. Printing a required pattern on the corona treatment surface of the BOPP film or the BOPET film through a gravure printing machine, and collecting a coiled material for later use;

2. manufacturing a first heat sealing layer: respectively adding polyethylene, cycloolefin copolymer, A bonding resin, EVOH, nylon, A bonding resin and EVA into 1-7 layers of hoppers of a 7-layer co-extrusion film blowing machine, heating a 1-7 layers of extruders and a die head to a proper temperature, starting the film blowing machine, adjusting the film to a proper width and thickness, and collecting the film into a coiled material for later use.

3. Manufacturing a second heat sealing layer: the same as the first heat sealing layer, respectively adding polyethylene, cycloolefin copolymer, A bonding resin, EVOH, nylon, B bonding resin and polypropylene into 1-7 material hoppers of a 7-layer co-extrusion film blowing machine, heating the 1-7 layers of extruder and a die head to proper temperature, starting the film blowing machine, adjusting the film to proper width and thickness, and collecting the film into a coiled material for later use.

4. Sucking a mixture of anhydride modified polyethylene, linear polyethylene and a foaming agent in a mass ratio of 1:0.95:0.05 into a hopper of an extrusion compounding machine, installing the coiled material obtained in the step 1 on a main unreeling of the extrusion compounding machine, adjusting the coiled materials obtained in the

steps

2 and 3 to the same reel diameter, and installing the coiled material on a secondary reel of the extrusion compounding machine to ensure that the two coiled materials are adjacent to each other and have no gap as much as possible. And starting an extrusion compounding machine to compound the protective layer with the first heat-sealing layer and the second heat-sealing layer together, and collecting a coiled material to prepare for bag making.

And (3) folding the composite film obtained in the step (4) along the joint of the first heat-sealing layer and the second heat-sealing layer, and making into bags with two independent spaces by using a bag making machine, wherein the pressure and the temperature of the three-side sealing part are higher than those of the middle separation sealing part during bag making.

It should be noted that the detailed description is only for explaining and explaining the technical solution of the present invention, and the scope of protection of the claims should not be limited thereby. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. An aluminium-free high-barrier separation type facial mask composite film is characterized by comprising: the heat-seal layer comprises a protective layer (1), an adhesive layer (2) and a heat-seal layer, wherein the heat-seal layer comprises a first heat-seal layer (3) and a second heat-seal layer (4), the protective layer (1), the adhesive layer (2) and the heat-seal layer are sequentially stacked from top to bottom, and the first heat-seal layer (3) and the second heat-seal layer (4) are closely adjacent and arranged in parallel.

2. The aluminum-free high-barrier separation type facial mask composite film according to claim 1, wherein the protective layer (1) is a BOPP film or a BOPET film.

3. The aluminum-free high-barrier separation type mask composite film according to claim 1, wherein the adhesive layer (2) comprises anhydride modified polyethylene, linear polyethylene and a foaming agent.

4. The aluminum-free high-barrier separation type facial mask composite film according to claim 1, wherein the first heat-sealing layer (3) comprises a polyethylene layer (5), a cycloolefin copolymer layer (6), a first A bonding resin layer (7), an EVOH layer (8), a nylon layer (9), a second A bonding resin layer (10) and an EVA layer (11) from top to bottom in sequence;

the second heat-sealing layer (4) is sequentially provided with a polyethylene layer (5), a cycloolefin copolymer layer (6), a first A bonding resin layer (7), an EVOH layer (8), a nylon layer (9), a B bonding resin layer (12) and a polypropylene layer (13) from top to bottom.

5. The aluminum-free high-barrier separation type mask composite film according to claim 4, wherein the first A bonding resin layer (7) is a mixture of anhydride modified polyethylene and linear polyethylene in a mass ratio of 1: 3.

6. The aluminum-free high-barrier separation type mask composite film according to claim 4, wherein the B bonding resin layer (12) is 100% anhydride modified polypropylene.

7. The aluminum-free high-barrier separation type facial mask composite film according to claim 4, wherein the nylon layer (9) is homopolymerized nylon.

8. The aluminum-free high-barrier separation type facial mask composite film according to claim 4, wherein the thickness of the cycloolefin copolymer layer (6) is not less than 20 μm.