CN207291173U - A kind of contactless preforming function epiphragma - Google Patents
A kind of contactless preforming function epiphragma Download PDFInfo
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- CN207291173U CN207291173U CN201721143094.3U CN201721143094U CN207291173U CN 207291173 U CN207291173 U CN 207291173U CN 201721143094 U CN201721143094 U CN 201721143094U CN 207291173 U CN207291173 U CN 207291173U
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Abstract
A kind of contactless preforming function epiphragma is the utility model is related to, the function epiphragma includes：Polyester layer, polyethylene layer, aluminium foil layer and the hot sealing layer being bonded successively.The polyethylene layer is three-layer co-extruded polyethylene film, has ABA sandwiches, wherein, A layers include linear low density polyethylene/low density polyethylene (LDPE) laminated film, and B layers include linear low density polyethylene/metallocene modified polyethylene co-extruded film.Function epiphragma realizes solvent-free production by structure design in the utility model, environmentally protective.And excellent performance.Compound and processing technology is simplified, cost-effective, sealing is more convenient, can more meet the specific demand of some clients.
Description
Technical field
It the utility model is related to packing technique field, more particularly to a kind of contactless preforming function epiphragma.
Background technology
Be widely used in the epiphragma product of container package on the market at present, in the prevalence of it is complicated, the process-cycle is long,
The problems such as dissolvent residual, material cost are high, seal window narrows, and epiphragma is mismatched with cup body material.This problem is due to each layer
Between caused by combination process, present combination process is mainly that dry type is compound, causes dissolvent residual, and hardening time length is conventional
Heat-sealing film heat-sealing scope it is small, can only be sealed with the material of adaptation, solve the problems, such as this method generally used in the prior art
For：According to different cup body materials, different heat-sealing films is prepared respectively to match.Deficiency existing for these methods has：Seal material
Expect species it is excessive, seal window narrows, the process-cycle length, it is of high cost the shortcomings of.
Utility model content
In view of problems of the prior art, the purpose of this utility model is that designing a kind of function epiphragma, simplify knot
Structure, shortens the production cycle, reduces cost, is a kind of universality function epiphragma that firm heat-sealing can be carried out with multiple cup body material.
For this purpose, the utility model adopts the following technical solution：
The utility model provides a kind of contactless preforming function epiphragma, and the function epiphragma includes：It is bonded successively
Polyester layer, polyethylene layer, aluminium foil layer and hot sealing layer.
Function epiphragma provided by the utility model is made of 4 Rotating fields, and outer layer is using printable, heat-resist, guarantor's perfume
Property good, polyester material that deflection is good, intermediate layer uses aluminum foil material using the good polyethylene of shock resistance, tensile property, inductive layer,
It is also barrier layer at the same time, hot sealing layer has a two ways, and heat-sealing glue layer coated face is maleic anhydride modified polyolefin based materials, product
Using solvent-free process is compound or surface coating in processing.Coated face has good adhesive fastness with function epiphragma matrix, seals
There are good heat sealability and easily taking off property in face with various cup bodies.
It should be noted that in the utility model, term " comprising " or its any other variant are intended to non-row
His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
And other elements that are not explicitly listed are further included, or further include as this process, method, article or equipment institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence " including ... ", it is not excluded that including it is described will
Also there are other identical element in the process of element, method, article or equipment.
Preferably, the polyester layer includes biaxially oriented polyester film.
Preferably, the thickness of the polyester layer is 9~20 μm, such as 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μ
M, 16 μm, 17 μm, 18 μm, 19 μm or 20 μm etc..
Preferably, the polyethylene layer is three-layer co-extruded polyethylene film, has ABA sandwiches, wherein, A layers include
Linear low density polyethylene/low density polyethylene (LDPE) laminated film, it is preferable that wherein linear low density polyethylene accounting 70~
75wt%, low density polyethylene (LDPE) 20~30wt% of accounting, in order to increase shaping and opening performance, can also add 1~5wt%'s
Opening agent and slipping agent；B layers include linear low density polyethylene/metallocene modified polyethylene co-extruded film, it is preferable that linear low
Density polyethylene 50~70wt% of accounting, metallocene modified polyethylene 15~25wt% of accounting, in order to increase whiteness, can also add
Enter the white master material of 5~10wt%.
The thickness ratio of the ABA is (30~40):(90~120):(30~40), such as 30:90:30、30:120:40、
40:100:30、35:110:35 or 40:120:40 etc..It is made up of the ABA sandwich designs and thickness of polyethylene layer, with showing
The structure sheaf for having function epiphragma in technology is compared, and has prominent advantage：Strong shock resistance, production is simple, and price more has excellent
Gesture.
Preferably, the thickness of the polyethylene layer be 150~200 μm, such as 150 μm, 160 μm, 170 μm, 180 μm, 190
μm or 200 μm etc..
Preferably, the thickness of the aluminium foil layer be 12~20 μm, such as 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm,
18 μm, 19 μm or 20 μm etc..
Preferably, the thickness of the hot sealing layer be 12~20 μm, such as 12 μm, 13 μm, 14 μm, 15 μm, 16 μm, 17 μm,
18 μm, 19 μm or 20 μm etc..
Preferably, the thickness ratio of the polyester layer, polyethylene layer, aluminium foil layer and hot sealing layer is (9~20):(150~
200):(12~20):(12~20), such as 9:150:12:12、9:200:20:12、20:150:12:18、10:160:15:14、
15:170:18:13、17:190:16:14、20:180:20:12 or 20:200:20:20 etc..The utility model passes through four-layer structure
Between thickness and structure design, mutually collaboration, realize excellent printing, shock resistance, within the scope of very wide temperature with it is various
Material firmly seals, easy the taking off property stablized, and compared with the function epiphragma of conventional four-layer structure in the prior art, has the excellent of protrusion
Gesture：Technique is simple, and solvent-free volatilization, cost is lower, and heat-sealing is more preferable.
Preferably, the thickness ratio of the polyester layer, polyethylene layer, aluminium foil layer and heat-sealing glue layer is (12~15):(150~
160):(12~15):(12~15).
The preparation method of contactless preforming function epiphragma described in the utility model includes：By each layer using solvent-free multiple
Close, followed by aging after compound, cooling.Solvent-free precipitation in processing, product no solvent residue are environmentally protective.Gained wound membrane product
To punch forming during customers' place, subsequently easily it can complete to seal in customers' place, normal contact heat-sealing or cup body capping
Induction heat-sealing afterwards.
Compared with prior art, the utility model at least has the advantages that：
(1) function epiphragma realizes solvent-free production by structure design in the utility model, environmentally protective.
(2) functional cover film properties are excellent in the utility model, sealed well with materials such as PP, PS, PVC, aluminium pots, intensity exists
5~8N/15mm.
(3) compound and processing technology is simplified, cost-effective, sealing is more convenient, can more meet the special need of some clients
Ask.
Brief description of the drawings
Fig. 1 is the cross-sectional view of epiphragma in the utility model embodiment；
The mark in the figure shows：1：Polyester layer；2：Polyethylene layer；21、23：Low density polyethylene (LDPE)/low density polyethylene (LDPE) is multiple
Close film；22：Linear low density polyethylene/metallocene modified polyethylene co-extruded film；3：Aluminium foil layer；4：Hot sealing layer
Embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is but following
Example be only the utility model simple example, not represent or limit the utility model rights protection scope, this reality
Claims are subject to new protection domain.
Polyethylene layer is prepared by co-extrusion in the utility model embodiment.Raw material includes：Linear low density polyethylene
Product type is Yangtze petrochemical industry 7042, and low density polyethylene (LDPE) product type is sinopec 2426H, metallocene modified polyethylene product
Three well SP1520 of model.
Embodiment 1
A kind of contactless preforming function epiphragma as shown in Figure 1, by be bonded successively polyester layer 1, polyethylene layer 2,
Aluminium foil layer 3 and hot sealing layer 4 are formed, and thickness is followed successively by 9 μm, 150 μm, 12 μm, 20 μm.Wherein polyester layer 1 is biaxial stretching polyester
Film；Polyethylene layer 2 is three-layer co-extruded polyethylene film, has ABA sandwiches, wherein, A layers include linear low density polyethylene
Alkene/low density polyethylene (LDPE) laminated film 21 and 23, wherein linear low density polyethylene accounting 70wt%, low density polyethylene (LDPE) accounting
29wt%, the opening agent and slipping agent of 1wt% are added during co-extrusion；B layers change including linear low density polyethylene/metallocene
Property polyethylene co-extruded film 22, linear low density polyethylene accounting 65wt%, metallocene modified polyethylene accounting 25wt%, co-extrusion
During add 10wt% white master material；The thickness ratio of the ABA is 30:120:30；Hot sealing layer 4 is heat-sealing PET film.
Embodiment 2
A kind of contactless preforming function epiphragma as shown in Figure 1, by be bonded successively polyester layer 1, polyethylene layer 2,
Aluminium foil layer 3 and hot sealing layer 4 are formed, and thickness is followed successively by 20 μm, 200 μm, 20 μm, 12 μm.Wherein polyester layer 1 is biaxial stretching polyester
Film；Polyethylene layer 2 is three-layer co-extruded polyethylene film, has ABA sandwiches, wherein, A layers include linear low density polyethylene
Alkene/low density polyethylene (LDPE) laminated film 21 and 23, wherein linear low density polyethylene accounting 75wt%, low density polyethylene (LDPE) accounting
20wt%, the opening agent and slipping agent of 5wt% are added during co-extrusion；B layers change including linear low density polyethylene/metallocene
Property polyethylene co-extruded film 22, linear low density polyethylene accounting 70wt%, metallocene modified polyethylene accounting 25wt%, co-extrusion
During add 5wt% white master material；The thickness ratio of the ABA is 40:90:40；Hot sealing layer 4 is maleic anhydride modified polyene
Hydrocarbon layers.
Embodiment 3
A kind of contactless preforming function epiphragma as shown in Figure 1, by be bonded successively polyester layer 1, polyethylene layer 2,
Aluminium foil layer 3 and hot sealing layer 4 are formed, and thickness is followed successively by 15 μm, 160 μm, 15 μm, 15 μm.Wherein polyester layer 1 is biaxial stretching polyester
Film；Polyethylene layer 2 is three-layer co-extruded polyethylene film, has ABA sandwiches, wherein, A layers include linear low density polyethylene
Alkene/low density polyethylene (LDPE) laminated film 21 and 23, B layers include linear low density polyethylene/metallocene modified polyethylene THIN COMPOSITE
Film 22；The thickness ratio of the ABA is 30:90:40；Hot sealing layer 4 is maleic anhydride modified polyolefin layer.
Embodiment 4
A kind of contactless preforming function epiphragma as shown in Figure 1, by be bonded successively polyester layer 1, polyethylene layer 2,
Aluminium foil layer 3 and hot sealing layer 4 are formed, and thickness is followed successively by 18 μm, 180 μm, 18 μm, 17 μm.Wherein polyester layer 1 is biaxial stretching polyester
Film；Polyethylene layer 2 is three-layer co-extruded polyethylene film, has ABA sandwiches, wherein, A layers include linear low density polyethylene
Alkene/low density polyethylene (LDPE) laminated film 21 and 23, B layers include linear low density polyethylene/metallocene modified polyethylene THIN COMPOSITE
Film 22；The thickness ratio of the ABA is 35:100:30；Hot sealing layer 4 is maleic anhydride modified polyolefin layer.
Embodiment 5
A kind of contactless preforming function epiphragma as shown in Figure 1, by be bonded successively polyester layer 1, polyethylene layer 2,
Aluminium foil layer 3 and hot sealing layer 4 are formed, and thickness is followed successively by 16 μm, 170 μm, 16 μm, 15 μm.Wherein polyester layer 1 is biaxial stretching polyester
Film；Polyethylene layer 2 is three-layer co-extruded polyethylene film, has ABA sandwiches, wherein, A layers include linear low density polyethylene
Alkene/low density polyethylene (LDPE) laminated film 21 and 23, B layers include linear low density polyethylene/metallocene modified polyethylene THIN COMPOSITE
Film 22；The thickness ratio of the ABA is 36:110:35；Hot sealing layer 4 is maleic anhydride modified polyolefin layer.
The heat seal strength test result of the sample of embodiment 1~5 is arranged in table 1.As shown in Table 1, the utility model function
The heat-sealing temperature scope of epiphragma is 90~160 DEG C, 140~160 DEG C wider very than conventional heat seal resin epiphragma heat-sealing temperature scope
It is more, and the heat sealable material of the utility model function epiphragma covers PET, PP, PS, PVC, paper, aluminium pot, iron flask etc., and it is existing
Conventional heat seal resin epiphragma prepares different heat-sealing films to match respectively according to different cup body materials in technology.Embodiment 1~
The product and different cup body materials of 5 sample and the heat seal strength stabilization of different cup body materials after 5~8N/15mm, optimization
For heat seal strength stabilization in 6N/15mm or so, numerical value is uniform, intensity controlled, while meets heat sealability and the easily requirement of taking off property；It is conventional
Heat sealing resin epiphragma heat seal strength：1~9N/15mm, it is uncontrollable, change when opening very greatly, it is difficult to meet multiple cup body material at the same time
Heat sealability and easy taking off property between material.After tested, the sample packaging material of embodiment 1~5 does not go out in storage test is transported
Phenomena such as now layering, epiphragma damage, do not seal, do not open.
Table 1
Applicant states that the utility model illustrates the detailed process equipment of the utility model and work by above-described embodiment
Skill flow, but the utility model is not limited to above-mentioned detailed process equipment and technological process, that is, does not mean that the utility model
Having to rely on above-mentioned detailed process equipment and technological process could implement.Person of ordinary skill in the field is it will be clearly understood that right
Any improvement of the utility model, the adding of equivalence replacement and auxiliary element to each raw material of the utility model product, specific side
Selection of formula etc., all falls within the scope of protection of the utility model and the open scope.
Claims (10)
1. a kind of contactless preforming function epiphragma, it is characterised in that the function epiphragma includes：The polyester being bonded successively
Layer, polyethylene layer, aluminium foil layer and hot sealing layer；Wherein described hot sealing layer includes heat-sealing PET film or heat-sealing glue layer；The heat-seal adhesive
Layer includes maleic anhydride modified polyolefin layer.
2. function epiphragma as claimed in claim 1, it is characterised in that the polyester layer includes biaxially oriented polyester film.
3. function epiphragma as claimed in claim 1, it is characterised in that the thickness of the polyester layer is 9~20 μm.
4. function epiphragma as claimed in claim 1, it is characterised in that the polyethylene layer is three-layer co-extruded polyethylene film,
With ABA sandwiches, wherein, A layers include linear low density polyethylene/low density polyethylene (LDPE) laminated film, and B layers are included linearly
Low density polyethylene (LDPE)/metallocene modified polyethylene co-extruded film.
5. function epiphragma as claimed in claim 4, it is characterised in that the thickness ratio of the ABA is (30~40):(90~
120):(30~40).
6. function epiphragma as claimed in claim 1, it is characterised in that the thickness of the polyethylene layer is 150~200 μm.
7. function epiphragma as claimed in claim 1, it is characterised in that the thickness of the aluminium foil layer is 12~20 μm.
8. function epiphragma as claimed in claim 1, it is characterised in that the thickness of the hot sealing layer is 12~20 μm.
9. function epiphragma as claimed in claim 1, it is characterised in that the polyester layer, polyethylene layer, aluminium foil layer and hot sealing layer
Thickness ratio be (9~20):(150~200):(12~20):(12~20).
10. function epiphragma as claimed in claim 1, it is characterised in that the polyester layer, polyethylene layer, aluminium foil layer and heat-sealing
The thickness ratio of layer is (12~15):(150~160):(12~15):(12~15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143094.3U CN207291173U (en) | 2017-09-07 | 2017-09-07 | A kind of contactless preforming function epiphragma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143094.3U CN207291173U (en) | 2017-09-07 | 2017-09-07 | A kind of contactless preforming function epiphragma |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207291173U true CN207291173U (en) | 2018-05-01 |
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ID=62446292
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721143094.3U Active CN207291173U (en) | 2017-09-07 | 2017-09-07 | A kind of contactless preforming function epiphragma |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207291173U (en) |
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2017
- 2017-09-07 CN CN201721143094.3U patent/CN207291173U/en active Active
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