CN201769424U - Release BOPP thin film - Google Patents
Release BOPP thin film Download PDFInfo
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- CN201769424U CN201769424U CN2009202496538U CN200920249653U CN201769424U CN 201769424 U CN201769424 U CN 201769424U CN 2009202496538 U CN2009202496538 U CN 2009202496538U CN 200920249653 U CN200920249653 U CN 200920249653U CN 201769424 U CN201769424 U CN 201769424U
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Abstract
The utility model relates to a release BOPP (biaxially-oriented polypropylene) thin film and sequentially comprises a release layer, a transparent middle layer and a transparent corona layer from the external to the internal with 1:3:1 layer thickness proportion, wherein ingredients of the release layer contains high-temperature resistant homopolymerization polypropylene with 50 to 90 percents weight percentage, release master batches with 0.1 to 1.0 percents weight percentage based on nanometer silica and titanium dioxide release agents, and other common polypropylene and regular additives. By using the high-temperature resistant homopolymerization polypropylene with larger proportion and adding nanometer antiblocking agents in the release layer, the release BOPP thin film provided by the utility model endows the BOPP thin film used in composite cold sealing packaging with favorable high-temperature resistant and antiblocking roles, and no other pollutants are transferred into the surface of the cold sealing adhesive or the inner layer of the packaging materials at the same time. Therefore, the release BOPP thin film has higher practical value.
Description
Technical field
The utility model relates to a kind of BOPP film, particularly relates to a kind of release BOPP thin film that can be used for the anti-high temperature adhesion of having of cold envelope composite soft packaging function.
Background technology
At present, cold envelope composite soft packaging is in the packing of To Be Protected from Heat at chocolate, candy, biscuit, ice cream etc. content, and the fields such as packing of the emergency aid articles of pharmaceuticals industry and disinfection tool have obtained application more and more widely.Cold envelope composite soft packaging adopts common BOPP (Biaxially oriented polypropylene) film as printed layers always, and is compound with MPET (aluminized mylar) or MOPP (bidirectional stretching polypropylene film of aluminizing) then, relocates the coating cold seal glue.Because conventional SiO is only used on common BOPP top layer
2Antiblocking agent comes actual anti-stick continuous cropping to use, add conventional oleamide or erucyl amide and reduce the coefficient of friction on top layer as slipping agent, therefore, when cold envelope composite soft packaging material rolling, the top layer of common BOPP directly contacts with cold seal glue, only could normal separation under normal temperature or low temperature condition, if run into the hot and humid environment phenomenon that then usually sticks together, cause bulk material to scrap.And the transportation of packaging material, hot and humid environment is difficult to avoid.
Some BOPP producer is by increasing SiO in the BOPP top layer
2The addition of antiblocking agent and oleamide or erucyl amide slipping agent, make the BOPP top layer gather more antiblocking agent and separate out more slipping agent, though improved anti-stick company (release) ability of BOPP like this, but the too much slipping agent in top layer can be transferred to cold seal glue surface and packaging material internal layer with antiblocking agent when contacting with cold seal glue, thereby causes the contaminated of the reduction of the cold sealing strength of packaging material and packaging material.
Summary of the invention
The purpose of this utility model is, overcome the defective that existing BOPP film exists, and provide a kind of new release BOPP thin film, when it directly contacts with cold seal glue, can either prevent BOPP top layer and the cold seal glue phenomenon that sticks together, can not produce pollutant again and transfer to cold seal glue surface or packaging material internal layer.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of release BOPP thin film that the utility model proposes, to form by release layer, transparent intermediate layer, transparent corona layer successively from outside to inside, the layer thickness ratio is about 1: 3: 1.
According to the release BOPP thin film of the utility model embodiment, contain the high temperature resistant HOPP of 50～90% percentage by weights in the described release layer prescription, also contain simultaneously 0.1～1.0% percentage by weight based on nanoscale SiO
2, TiO
2The release master batch of mould release (antiblocking agent), all the other are plain polypropylene resin (comprising common HOPP and conventional additives, as slipping agent, antioxidant, antistatic additive etc.).
According to the release BOPP thin film of the utility model embodiment, described high temperature resistant HOPP is the PP material with high-temperature stability, but heatproof reaches 140 ℃ or above temperature.
According to the release BOPP thin film of the utility model embodiment, described transparent intermediate layer is common BOPP transparent intermediate layer material, can be the mixture of a kind of common HOPP or the common HOPP of the multiple trade mark.
According to the release BOPP thin film of the utility model embodiment, described transparent corona layer is the transparent corona layer material of common BOPP, can be a kind of common HOPP or the mixture of the common HOPP of the multiple trade mark and an amount of additive.
By technique scheme, release BOPP thin film of the present utility model has following advantage at least:
1) release BOPP thin film of the present utility model uses the high temperature resistant HOPP of larger proportion at release layer, and adding nanoscale antiblocking agent, making this BOPP film be used for compound cold package harness has good high temperature resistant anti-stick continuous cropping usefulness, does not have any pollutant simultaneously and transfers to cold seal glue surface or packaging material internal layer;
2) release BOPP thin film of the present utility model, production process and common BOPP film are basic identical, need not any equipment or technological transformation, have very high practical value.
3) release BOPP thin film of the present utility model is used for compound cold envelope packaging film, by saving the expense of accumulating link, makes that whole cost is low, has the higher market competitiveness.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structure composition diagram of release BOPP thin film of the present utility model.
Fig. 2 is the structure chart of compound cold envelope packaging film.
10: release layer
20: transparent intermediate layer
30: transparent corona layer
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of a kind of release BOPP thin film, method, step, feature and the effect thereof that the utility model proposes, describe in detail as after.
The preparation method of a kind of release BOPP thin film of the present utility model, it may further comprise the steps:
Batch mixing is with dry: respectively each layer (release layer 10, central, clear layer 20, corona layer 30) raw material particle is fully stirred separately, it is mixed, carrying out the drying processing then;
Fusion and casting sheet: the fusion in extruder separately of each that mixes layer raw material, wherein, the melt temperature of release layer is at 250～280 ℃, more common HOPP temperature is high 10～20 ℃, the resin of fusion flows out by T type mouth mould, and be attached to the sharp cooling roll surface rapidly, form solid-state sheet material;
Biaxial tension: solid-state sheet material enters the biaxial tension position, at first carries out longitudinal stretching, carries out cross directional stretch then, forms the polypropylene film of biaxial tension;
Thickness measuring, corona and rolling: after the online thickness measure of polypropylene film process through biaxial tension, beat sided corona treatment, be wound into semi-finished product then at the corona layer;
Ageing Treatment with cut: the semi-finished product of above rolling are placed on the Ageing Treatment of carrying out in 35 ℃ of * 70%RH environment 48 hours, and width cuts into rouleau as requested then, is the release BOPP thin film finished product.
Embodiment 1
A kind of release BOPP thin film as shown in Figure 1, is 3 layers of coextrusion biaxially oriented film, and gross thickness is 18 microns.The layer thickness of release layer (top layer) 10, central, clear layer 20 and corona layer 30 is followed successively by 2～4 microns, 10～12 microns, 2～4 microns.The high temperature resistant HOPP that contains 50～90% percentage by weights in the prescription of release layer 1, also contain simultaneously 0.1～1.0% percentage by weight based on nanoscale SiO
2, TiO
2The release master batch of mould release (antiblocking agent), other are common HOPP and conventional additives, as slipping agent, antioxidant, antistatic additive etc.Central, clear layer 2 is identical with the prescription of common BOPP film, can be the mixture of a kind of common HOPP or the common HOPP of the multiple trade mark.Corona layer 3 is identical with the prescription of common BOPP film, can be a kind of common HOPP or the mixture of the common HOPP of the multiple trade mark and an amount of additive.
Use the three-layer co-extruded biaxial tension technology that goes out, more than the raw material pellet of prescription is made the release BOPP thin film of 18 micron thickness through batch mixing and dry, fusion and casting sheet (release layer fill a prescription the more common BOPP of melt temperature fill a prescription high about 10 ℃), biaxial tension, thickness measuring, corona and rolling, Ageing Treatment and the operation process such as cut.
Detect this release BOPP thin film, skin-friction coefficient is about 0.35, and corona surface surface corona value keeps 〉=38 dyne.Corona aspect at release BOPP is printed, and is compound with MPET12 (12 micron thickness aluminized mylar) then, relocates the coating cold seal glue, makes compound cold package package material, and structure chart as shown in Figure 2.This compound cold package dress membrane structure is: release BOPP (bidirectional stretching polypropylene film)/INK (ink lay)/AD (adhesive)/MPET (aluminized mylar) or MOPP (bidirectional stretching polypropylene film of aluminizing)/CS (cold seal glue).Interlayer combined strength bination 〉=the 0.7N/15mm of compound cold package package material, cold sealing strength 〉=2N/15mm, the adhesion intensity≤0.5N/15mm of release BOPP and cold seal glue under the normal temperature; After in 70 ℃ of environment, carrying out 1 month high temperature resistant test, the adhesion intensity of release BOPP and cold seal glue still≤0.5N/15mm, not having any pollutant transfers on the cold seal glue or does not have any cold seal glue and transfer on the BOPP, cold sealing strength still 〉=2N/15mm, interlayer combined strength bination 〉=0.7N/15mm.
Embodiment 2
A kind of release BOPP thin film as shown in Figure 1, is 3 layers of coextrusion biaxially oriented film, and gross thickness is 15 microns.The layer thickness of release layer (top layer) 1, central, clear layer 2 and corona layer 3 is followed successively by 2～4 microns, 8～10 microns, 2～4 microns.The high temperature resistant HOPP that contains 50～90% percentage by weights in the prescription of release layer 1, also contain simultaneously 0.1～1.0% percentage by weight based on nanoscale SiO
2, TiO
2The release master batch of mould release (antiblocking agent), other are plain polypropylene and conventional additives, as slipping agent, antioxidant, antistatic additive etc.Central, clear layer 2 is identical with the prescription of common BOPP film, can be the mixture of a kind of common HOPP or the common HOPP of the multiple trade mark.Corona layer 3 is identical with the prescription of common BOPP film, can be a kind of common HOPP or the mixture of the common HOPP of the multiple trade mark and an amount of additive.
Use the three-layer co-extruded biaxial tension technology that goes out, more than the raw material pellet of prescription is made the release BOPP thin film of 15 micron thickness through batch mixing and dry, fusion and casting sheet (release layer fill a prescription the more common BOPP of melt temperature fill a prescription high about 10 ℃), biaxial tension, thickness measuring, corona and rolling, Ageing Treatment and the operation process such as cut.
Detect this release BOPP thin film, skin-friction coefficient is about 0.40, and corona surface surface corona value keeps 〉=38 dyne.Corona aspect at release BOPP is printed, and is compound with MOPP20 (20 micron thickness aluminize bidirectional stretching polypropylene film) then, relocates the coating cold seal glue, makes compound cold package package material, and structure chart as shown in Figure 2.The structure of this compound cold envelope packaging film is: release BOPP (bidirectional stretching polypropylene film)/INK (ink lay)/AD (adhesive)/MPET (aluminized mylar) or MOPP (bidirectional stretching polypropylene film of aluminizing)/CS (cold seal glue).Interlayer combined strength bination 〉=the 0.7N/15mm of compound cold package package material, cold sealing strength 〉=2N/15mm, the adhesion intensity≤0.5N/15mm of release BOPP and cold seal glue under the normal temperature; After in 70 ℃ of environment, carrying out 1 month high temperature resistant test, the adhesion intensity of release BOPP and cold seal glue still≤0.5N/15mm, not having any pollutant transfers on the cold seal glue or does not have any cold seal glue and transfer on the BOPP, cold sealing strength still 〉=2N/15mm, interlayer combined strength bination 〉=0.7N/15mm.
Can learn by the foregoing description, release BOPP thin film of the present utility model uses the high temperature resistant HOPP of larger proportion at release layer, and adding nanoscale antiblocking agent, making this BOPP film be used for compound cold package harness has good high temperature resistant anti-stick continuous cropping usefulness, does not have any pollutant simultaneously and transfers to cold seal glue surface or packaging material internal layer; The used high temperature resistant HOPP of the utility model is the PP material with high-temperature stability, but heatproof reaches 140 ℃ or above temperature, it is a kind of high three-dimensional, the homopolymerization PP of systematicness, it compares the crystallinity height with general PP, is the rigidity of product and a kind of resin that hear resistance has essence to improve.Release BOPP thin film of the present utility model is used for compound cold envelope packaging film, by saving the expense of accumulating link, makes that whole cost is low, has the higher market competitiveness.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. release BOPP thin film, it is characterized in that: this release BOPP thin film is made up of release layer, transparent intermediate layer, transparent corona layer from outside to inside successively, and the layer thickness ratio is about 1: 3: 1.
2. release BOPP thin film according to claim 1 is characterized in that: described plain polypropylene resin is common HOPP.
3. release BOPP thin film according to claim 1 and 2 is characterized in that: described transparent intermediate layer is common BOPP transparent intermediate layer material.
4. release BOPP thin film according to claim 1 and 2 is characterized in that: described transparent corona layer is the transparent corona layer material of common BOPP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202496538U CN201769424U (en) | 2009-10-22 | 2009-10-22 | Release BOPP thin film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202496538U CN201769424U (en) | 2009-10-22 | 2009-10-22 | Release BOPP thin film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201769424U true CN201769424U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202496538U Expired - Fee Related CN201769424U (en) | 2009-10-22 | 2009-10-22 | Release BOPP thin film |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481697A (en) * | 2013-09-29 | 2014-01-01 | 太仓市鸿运包装材料有限公司 | High-temperature-resistant and scratching-resistant OPP (o-phenylphenol) heat transfer film and preparation method thereof |
| CN104206489A (en) * | 2014-08-20 | 2014-12-17 | 常熟市汇康食品厂 | Moisture-proof biscuits |
| CN104513635A (en) * | 2014-12-10 | 2015-04-15 | 斯迪克新型材料（江苏）有限公司 | Making method for anti-fake soundless adhesive tape |
| CN105196658A (en) * | 2015-08-31 | 2015-12-30 | 湖北慧狮塑业股份有限公司 | Temperature-resisting shallow-stretching film and production method thereof |
| CN106470839A (en) * | 2014-07-09 | 2017-03-01 | 东丽株式会社 | Polypropylene screen and film for demoulding |
| CN113956816A (en) * | 2021-11-25 | 2022-01-21 | 东莞澳中新材料科技股份有限公司 | High-temperature-resistant and easily-unwound composite expansion adhesive tape and preparation method and application thereof |
-
2009
- 2009-10-22 CN CN2009202496538U patent/CN201769424U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481697A (en) * | 2013-09-29 | 2014-01-01 | 太仓市鸿运包装材料有限公司 | High-temperature-resistant and scratching-resistant OPP (o-phenylphenol) heat transfer film and preparation method thereof |
| CN106470839A (en) * | 2014-07-09 | 2017-03-01 | 东丽株式会社 | Polypropylene screen and film for demoulding |
| CN104206489A (en) * | 2014-08-20 | 2014-12-17 | 常熟市汇康食品厂 | Moisture-proof biscuits |
| CN104513635A (en) * | 2014-12-10 | 2015-04-15 | 斯迪克新型材料（江苏）有限公司 | Making method for anti-fake soundless adhesive tape |
| CN104513635B (en) * | 2014-12-10 | 2016-08-24 | 斯迪克新型材料（江苏）有限公司 | A kind of false proof noiseless adhesive tape manufacture method |
| CN105196658A (en) * | 2015-08-31 | 2015-12-30 | 湖北慧狮塑业股份有限公司 | Temperature-resisting shallow-stretching film and production method thereof |
| CN113956816A (en) * | 2021-11-25 | 2022-01-21 | 东莞澳中新材料科技股份有限公司 | High-temperature-resistant and easily-unwound composite expansion adhesive tape and preparation method and application thereof |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20141022 |
|
| EXPY | Termination of patent right or utility model |