CN102350829A - Composite film for candy packaging and preparation method thereof - Google Patents
Composite film for candy packaging and preparation method thereof Download PDFInfo
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- CN102350829A CN102350829A CN2011101813689A CN201110181368A CN102350829A CN 102350829 A CN102350829 A CN 102350829A CN 2011101813689 A CN2011101813689 A CN 2011101813689A CN 201110181368 A CN201110181368 A CN 201110181368A CN 102350829 A CN102350829 A CN 102350829A
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Abstract
The invention provides a composite film for candy packaging and a preparation method thereof. The composite film for candy packaging successively comprises a polyethylene glycol terephthalate layer and an aluminizing casting polypropylene layer, wherein, the aluminizing casting polypropylene layer successively comprises an aluminized layer and a casting polypropylene (CPP) layer, the CPP layer successively comprises a corona layer, a core layer and an internal layer, and the internal layer comprises 97-99 wt% of metallocene polypropylene terpolymer and 1-3 wt% of opening agent. The composite film for candy packaging provided herein can lower heat-sealing temperature of the packaging film and simultaneously guarantee heat-sealing intensity, so as to satisfy the requirements of a high speed packaging machine for heat-sealing, and improves the packaging efficiency.
Description
Technical field
The present invention relates to the packaging for foodstuff field, particularly a kind of candy wrapping composite membrane and preparation method thereof.
Background technology
Candy is the food that liked by people.At present, the global consumption per head of candy is about 3 kilograms, and China has only about 0.7 kilogram, so the candy market of China has huge development potentiality.Need pack behind the candy wrapping, candy wrapping can be kept the original gloss of candy, fragrance and form for a long time, and then prolongs shelf life; Candy wrapping can also prevent dust and the pollution of microorganism, improves the wholesomeness of product; In addition, exquisite candy wrapping can also improve consumer's desire to purchase and commodity value.Therefore, candy wrapping plays an important role in candy circulation of commodities process.
At present, the bag commentaries on classics form of candy mainly contains kink formula packing, pillow type packaging and sling N pack.Problems such as wherein, kink formula packing is a candy wrapping form the earliest, and this kind packaged form can be accomplished through packing machine, also can accomplish through manual operations, and kink formula packing exists packaging efficiency low, and is poorly sealed.Sling N pack all has higher requirement to packaging facilities and packaging material, and packing cost is higher.At present, most candy manufacturing enterprise mainly adopts pillow type packaging, and pillow type packaging is popular in 60～seventies of last century, and it carries out making behind banding and the side seal after being to use packaging material that candy is packed.
Packing machine manufacturing firm develops the high speed that is fit to dissimilar products, the automation candy wrapper reaches high-speed packaging with expectation usefulness in recent years.The raising of packing machine speed of production is also had higher requirement to the heat sealability of candy wrapping material.High-speed packaging device requires packaging material to have excellent low-temperature heat involution performance, the sticking intensity of heat and sealing-strength.Traditional candy wrapping film is in order to realize the effect of low-temperature heat-sealing; Internal layer is selected polyethylene (PE) material usually for use; PE film and stretching print film are carried out obtaining packaging film after compound; But be to use the PE film to have following problem as hot sealing layer: at first compound easy the curling of PE film and stretching print film, and the film-blowing process of PE film it make planarization relatively poor, is difficult to the stable requirement of satisfying the moment heat-sealing; In addition, the deflection of PE film is lower, is difficult to give candy wrapping good deflection.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of candy wrapping composite membrane and preparation method thereof, and this candy wrapping composite membrane has the low and high characteristics of heat seal strength of heat-sealing temperature, is suitable for the requirement of high-speed packaging machine to the packaging material heat sealability.
In view of this, the present invention provides a kind of candy wrapping composite membrane, comprises the PETG layer that sets gradually and the cast polypropylene layer of aluminizing;
The said cast polypropylene of aluminizing comprises aluminium coated and the cast polypropylene layer that sets gradually layer by layer, and said cast polypropylene layer comprises corona layer, sandwich layer and the internal layer that sets gradually;
Said internal layer comprises: the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%.
Preferably, said corona layer is the COPP layer.
Preferably, said sandwich layer is the HOPP layer.
Preferably, the thickness ratio of said corona layer, sandwich layer and internal layer is 1: (3.5～3.8): (1.2～1.6).
Preferably, said PETG layer is 1 with the thickness ratio of the cast polypropylene layer of aluminizing: (2～3).
Preferably, the thickness of the said cast polypropylene layer of aluminizing is 28 μ m～32 μ m.
Preferably, the fusing point of said metallocene ternary polymerized polypropylene is 120 ℃～128 ℃.
Preferably, the melt index of said metallocene ternary polymerized polypropylene is 6.5g/10min～7.5g/10min.
Accordingly, the present invention also provides a kind of preparation method of above-mentioned candy wrapping laminated film, comprising:
A, with outermost resin, sandwich layer resin and inner layer resin curtain coating cooling and shaping after 210 ℃～250 ℃ extrusion moldings; The film that is comprised skin, sandwich layer and internal layer successively; Outer layer surface to said film carries out corona treatment, is comprised the cast polypropylene film of corona layer, sandwich layer and internal layer successively; Said inner layer resin comprises: the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%;
B, the corona layer of said cast polypropylene film is carried out carrying out after the Surface Treatment with Plasma vacuum aluminum-coated, obtain the cast polypropylene film of aluminizing;
C, to adopt the dry type composite algorithm that pet film and the said cast polypropylene film of aluminizing are carried out compound, obtains the candy wrapping laminated film.
Preferably, input power is 3.4KW～4.0KW in the said Surface Treatment with Plasma operation.
The present invention provides a kind of candy wrapping laminated film; Comprise the PETG layer that sets gradually and the cast polypropylene layer of aluminizing, the internal layer of the cast polypropylene layer of aluminizing comprises the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%.This laminated film be with the PETG layer as outermost layer, be used to give composite packing film good mechanical performance, machinability, printing adaptability and barrier; The cast polypropylene layer of aluminizing is used to give the good deflection of composite package film and intercepts fragrance protectiveness, and its internal layer is selected the metallocene ternary polymerized polypropylene for use, and metallocene ternary polymerized polypropylene fusing point is lower; Also reduced heat-sealing temperature thus; And the sticking intensity of ternary polymerized polypropylene heat is high, moment bonding strength high, after the automatic edge of a knife is cut under at a high speed; Good involution effect can be arranged, and heat seal strength is higher.Therefore, internal layer selects for use the metallocene ternary polymerized polypropylene can when reducing the packaging film heat-sealing temperature, guarantee heat seal strength, to satisfy the requirement of high-speed packaging machine to heat-sealing.The experiment proof; Required heat-sealing temperature is about 115 ℃ when adopting the heat seal strength of candy wrapping composite membrane provided by the invention to reach 10N, uses High-Speed Automatic packing machine, with this laminated film candy is packed; Package speed can reach 520cut/min～550cut/min, has improved packaging efficiency.
The specific embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, describe just to further specifying feature and advantage of the present invention but should be appreciated that these, rather than to the restriction of claim of the present invention.
The embodiment of the invention discloses a kind of candy wrapping laminated film, comprise PETG (PET) layer that sets gradually and cast polypropylene (VMCPP) layer of aluminizing;
Said VMCPP layer comprises aluminium coated and cast polypropylene (CPP) layer that sets gradually, and said CPP layer comprises corona layer, sandwich layer and the internal layer that sets gradually;
Said internal layer comprises: the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%.
Can know by such scheme; It is outer membrane that candy wrapping laminated film provided by the invention is selected the PET film for use, and it is the loading end of printing, and PET has higher intensity, toughness and dimensional stability; These characteristics of PET make it be easy to processing, can satisfy the requirement of Compound Machining; The PET film also has good printing adaptability, requires lower to printing equipment; And the gas and the vapor permeability of PET film are lower, become damp and rotten to avoid candy.Therefore, adopt the PET film the most skin can give composite packing film good mechanical performance, machinability, printing adaptability and barrier.
VMCPP is the inner layer film of candy wrapping laminated film the most, and it is after CPP film surface vacuum is aluminized, to form.With respect to the PE film, CPP film deflection is higher, but existing C PP film heat-sealing temperature is higher, can not satisfy the requirement of low-temperature heat-sealing, has also limited package speed thus.For this reason; The present invention is to the internal layer of CPP film; The composition that is hot sealing layer adjusts, and to reduce its heat-sealing temperature and to guarantee its heat seal strength, the interior layer formula that the present invention adopted is: the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%.
Wherein, the metallocene ternary polymerized polypropylene is starting monomer with propylene with other two kinds of alkene, the polypropylene that under the metallocene catalysis catalytic action, is polymerized; Specifically can be for propylene-ethylene-octene copolymer, propylene-ethylene-butene copolymer, with respect to homopolymerization PP, metallocene ternary polymerized polypropylene fusing point is lower; Also reduced heat-sealing temperature thus; And the sticking intensity of ternary polymerized polypropylene heat is high, moment bonding strength high, after the automatic edge of a knife is cut under at a high speed; Good involution effect can be arranged, and heat seal strength is higher.Therefore, internal layer selects for use the metallocene ternary polymerized polypropylene can when reducing the packaging film heat-sealing temperature, guarantee heat seal strength, to satisfy the requirement of high-speed packaging machine to heat-sealing.The fusing point of said metallocene ternary polymerized polypropylene is preferably 120 ℃～128 ℃, and melt index is preferably 6.5g/10min～7.5g/10min, and the trade mark that most preferably adopts JPP company to provide is the metallocene ternary polymerized polypropylene of WFX4.
Opening agent in the interior layer formula then is used to increase the smoothness of film, and film because the friction between film and the equipment can produce static, causes in the curly course friction too big in process of production, influences the brightness of film.For preventing that film article is sticked together, opening is difficult, and for this reason, the opening that the present invention adds in interior layer formula need add the opening agent of 1wt%～3wt%.Erucyl amide is preferably selected in the opening agent for use, and is not volatile because the vapour pressure of erucyl amide is lower, so it is longer in the film surface time of staying, therefore can make film keep high smooth property for a long time.Use the inner membrance of above-mentioned prescription, the situation that mist degree increases in process, can not occur, do not influence film appearance and processing characteristics.
Sandwich layer and corona layer can adopt composition well known to those skilled in the art, and as preferred version, sandwich layer adopts HOPP, the HOPP good mechanical performance, and then give film higher deflection; The layer of corona described in this paper is meant the one deck at corona surface place, and film is through after the corona treatment, and corona surface can produce lopsided group; Film surface is activated; Part ion injects film, makes surface coarsening, thereby increases the surface tension of film; Improve the bond properties of CPP film, be convenient to the carrying out of the follow-up operation of aluminizing.The corona layer preferably adopts COPP among the present invention, and COPP is easy to carry out corona treatment.The thickness of corona layer, sandwich layer and internal layer ratio is preferably 1 in the CPP film: (3.5～3.8): (1.2～1.6), more preferably 1: 3.6: 1.4.The increase of packaging film hot sealing layer thickness degree helps package encapsulation property and sealing-strength to increase.The thickness of CPP film is preferably 28 μ m～32 μ m.
The aluminium coated of VMCPP film places CPP film corona laminar surface, is used to give film good separated wet trapping performance and fragrance protectiveness.The thickness of aluminium coated is preferably 300 dusts～500 dusts.
The thickness of pet layer and VMCPP layer is than preferably being made as 1 in the candy wrapping laminated film provided by the invention: (2～3).The thickness of pet layer is preferably 10 μ m～14 μ m.
Accordingly, the present invention also provides a kind of preparation method of above-mentioned candy wrapping composite membrane, comprises the steps:
A, with outermost resin, sandwich layer resin and inner layer resin curtain coating cooling and shaping after 210 ℃～250 ℃ extrusion moldings; The film that is comprised skin, sandwich layer and internal layer successively; Outer layer surface to said film carries out corona treatment, is comprised the cast polypropylene film of corona layer, sandwich layer and internal layer successively; Said inner layer resin comprises: the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%;
B, the corona layer of said cast polypropylene film is carried out carrying out after the Surface Treatment with Plasma vacuum aluminum-coated, obtain the cast polypropylene film of aluminizing;
C, to adopt the dry type composite algorithm that pet film and the said cast polypropylene film of aluminizing are carried out compound, obtains the candy wrapping laminated film.
Among the above-mentioned preparation method; Step a is the process of preparation CPP film; Corresponding to above-mentioned CPP film corona layer, sandwich layer and internal layer, promptly inner layer resin comprises the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt% successively for the described outermost resin of step a, sandwich layer resin and inner layer resin, and outermost resin and sandwich layer resin can adopt the composition of those skilled in the art's resin; Outermost resin is preferably COPP, and the sandwich layer resin is preferably HOPP.
The present invention preferably adds outermost resin, sandwich layer resin and inner layer resin respectively in three barrels of extruder; And each barrel carried out three sections heating; It is 210 ℃～230 ℃ that one section heating-up temperature of each barrel preferably is set; Two sections heating-up temperatures are 230 ℃～250 ℃, and three sections heating-up temperatures are 240 ℃, and it is 235 ℃～250 ℃ that die head temperature is set.Form hot melt film after the coextrusion, it comprises the skin that is formed by outermost resin successively, the internal layer that intermediate layer that the intermediate layer resin forms and inner layer resin form.
Then with above-mentioned hot melt film through the curtain coating cooling and shaping, it is 15 ℃～40 ℃ that chilling temperature preferably is set.Outer layer surface at film behind the cooling and shaping carries out corona treatment, the outer corona layer that after corona treatment, promptly forms.
Step b is the operation of aluminizing at the corona laminar surface of CPP film.The barrier of film is not to become original with thickness of coating, and when aluminum layer thickness increased, the density of aluminium lamination and adhesive force descended, and little pore of aluminium lamination increases, and causes barrier to reduce.The barrier property that therefore will improve metallized film need satisfy following requirement: improve aluminum layer thickness; Strengthen the aluminium lamination density; Firm aluminium coated adhesive force; Few pore of trying one's best.To above-mentioned requirements, the present invention film is carried out vacuum aluminum-coated before, the corona layer of CPP film is carried out Surface Treatment with Plasma, promptly in vacuum environment, carry out behind the CPP film corona laminar surface vacuum aluminum-coated again with plasma sputtering.
The CPP film is carried out can removing CPP film surperficial pollutant and residual gas after the Surface Treatment with Plasma, effectively avoid gas release taking place in the process of aluminizing and making filtering layer produce small pin hole, strengthened the compactness of filtering layer, improve the barrier property of metallized film; Can also make simultaneously to form the polar group of some on the film surface polymer molecule, and then improve the performance on CPP film surface, improve the bonding strength of aluminium lamination and CPP film.
In addition, the inventor discovers that in the Surface Treatment with Plasma operation, along with the increase of input power, the energy of plasma increases, and handling intensity increases the also corresponding raising of barrier.But when input power is added to 5KW when above; Barrier but decreases on the contrary; This is that surface roughness increases because can cause the surface to form etching during the too high plasma treatment film of energy, and the coating uniformity is not high; Influenced barrier, input power preferably is made as 3.4KW～4.0KW in the Surface Treatment with Plasma operation according to the invention for this reason.
After preparing VMCPP according to step b, adopt the dry type composite algorithm that VMCPP film and PET film are carried out the compound candy wrapping laminated film that just makes.Be specially and PET film and VMCPP film carried out compound through dry compound machine, the operation concentration of the adhesive that adopts in the recombination process is preferably No. 3 and examined the grace cup 17～20 seconds, is drying to obtain after compound.For the film of needs printing, after preferred elder generation printed the PET film, the PET film after will printing again carried out compound with the VMCPP film according to the method described above.
The candy wrapping composite membrane of preparing according to the method described above has higher deflection, and heat-sealing temperature is low, heat seal strength is high, is suitable for the requirement of high-speed packaging machine to heat-sealing.
In order further to understand the present invention, below in conjunction with embodiment candy wrapping laminated film provided by the invention and preparation method thereof to be described, protection scope of the present invention is not limited by the following examples.
COPP in following examples provides by Singapore TPC company, and trade names are FL7540L, and density is 0.9g/cm3, and melt index is 7.0g/10min, and fusing point is 139 ℃;
HOPP provides by Oil of Shanghai Petrochemical Company company, and trade names are FC801MX, and density is 0.89g/cm3, and melt index is 8.0g/10min, and fusing point is 160 ℃;
The equal Japanese JPP of metallocene ternary polymerized polypropylene company provides, and trade names are WFX4, and density is 0.89g/cm3, and melt index is 7.0g/10min, and fusing point is 125 ℃;
The opening agent provides by the precious Need Inc. of France, and trade names are ABPP10S.
Embodiment 1
1, three barrels to the coextrusion machine add outermost resin raw material, intermediate layer resin raw material and inner layer resin raw material respectively, and each layer resin raw material prescription is listed in table 1;
Raw material in three barrels carried out coextrusion is laggard goes into curtain coating station cooling and shaping, three barrel zone temperatures of extruder are set are one section: 220 ℃, two sections: 240 ℃, three sections: 240 ℃, die head temperature: 245 ℃; It is 30 ℃ that the casting roller roll surface temperature is set in the curtain coating operation.The air knife gap is 1.2mm; Air knife speed: 50%; Vacuum tank wind speed: 35%; Air knife pressure: 5.2mbar; Vacuum tank pressure: 1.2mbar.
Film after the curtain coating typing is carried out corona treatment at its outer layer surface; It is that 8.5KW, corona roller pressure are 3bar that corona treatment power is set; Obtain paper article packaging CPP film after the corona treatment, overall film thickness is 30 μ m, and the thickness ratio of corona layer, intermediate layer and internal layer is 5: 18: 7.
2, the CPP film that step 1 is made places in the vacuum chamber, and the bus plane of CPP film is carried out plasma treatment, and plasma species is that volume is 1: 9 O
2And Ar, input power is 3.8KW;
The bus plane surface of CPP film is carried out vacuum aluminum-coatedly after the plasma treatment, and aluminum layer thickness is 400 dusts, obtains the VMCPP film.
3, to carry out compound, used adhesive operation concentration through dry compound machine be to examine the grace cup 17 seconds～20 seconds No. 3 for PET film that 12 μ m are thick and VMCPP film, carries out drying after compound, obtains the candy wrapping laminated film.
Embodiment 2～embodiment 4
The preparation section of the foregoing description candy wrapping laminated film is identical with embodiment 1, and VMCPP pleurodiaphragmatic in terspace material formula is listed in table 1, and technological parameter is listed in table 2.
The thickness of the PET film of above-mentioned 2 embodiment preparation is 12 μ m, and the thickness of CPP film is 30 μ m, and the thickness of aluminium coated is 400 dusts;
Wherein, the thickness ratio of thin film exterior layer, intermediate layer and the internal layer of the CPP film of embodiment 2 preparations is 5: 17.5: 7.5;
The thickness ratio of thin film exterior layer, intermediate layer and the internal layer of the CPP film of embodiment 3 preparations is 5: 19: 6;
The thickness ratio of thin film exterior layer, intermediate layer and the internal layer of the CPP film of embodiment 4 preparations is 5: 18: 7.
Comparative example 1
The preparation section of present embodiment candy wrapping laminated film is identical with embodiment 1, and VMCPP pleurodiaphragmatic in terspace material formula is listed in table 1, and technological parameter is listed in table 2.
The thickness of the PET film of present embodiment preparation is 12 μ m, the equal 30 μ m of the thickness of CPP film, and the thickness of aluminium coated is 400 dusts;
Wherein, the thickness of the thin film exterior layer of CPP film, intermediate layer and internal layer ratio is 5: 18: 7.
The CPP film resin composition of raw materials of table 1 embodiment 1～embodiment 3
The technological parameter of table 2 embodiment 2 to embodiment 4VMCPP films
Heat seal strength under the different temperatures of the candy wrapping composite membrane of test implementation example 1～4 preparation, test result is listed in table 3.
Heat seal strength test under the table 3 candy wrapping composite membrane different temperatures
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | |
| 100℃ | 0.09N/15mm | 0.07N/15mm | 0.08N/15mm | 0.09N/15mm | 0 |
| 103℃ | 0.22N/15mm | 0.21N/15mm | 0.22N/15mm | 0.22N/15mm | 0 |
| 105℃ | 0.62N/15mm | 0.57N/15mm | 0.59N/15mm | 0.62N/15mm | 0 |
| 108℃ | 0.83N/15mm | 0.82N/15mm | 0.81N/15mm | 0.83N/15mm | 0 |
| 109℃ | 2.73N/15mm | 2.69N/15mm | 2.71N/15mm | 2.73N/15mm | 0 |
| 112℃ | 8.8N/15mm | 8.8N/15mm | 8.9N/15mm | 8.8N/15mm | 0.5N/15mm |
| 115℃ | 9.8N/15mm | 9.6N/15mm | 9.7N/15mm | 9.8N/15mm | 1.8N/15mm |
| 118℃ | 13.8N/15mm | 13.5N/15mm | 13.6N/15mm | 13.8N/15mm | 5.7N/15mm |
| 121℃ | 13.7N/15mm | 13.6N/15mm | 13.7N/15mm | 13.7N/15mm | 7.6N/15mm |
| 124℃ | 14.1N/15mm | 13.9N/15mm | 13.6N/15mm | 14.1N/15mm | 9.2N/15mm |
| 127℃ | 13.5N/15mm | 13.5N/15mm | 13.6N/15mm | 13.5N/15mm | 11.0N/15mm |
| 130℃ | 14.5N/15mm | 14.3N/15mm | 14.5N/15mm | 14.5N/15mm | 12.9N/15mm |
| 133℃ | 13.3N/15mm | 13.0N/15mm | 13.1N/15mm | 13.3N/15mm | 12.1N/15mm |
The heat seal strength of fast automatic candy wrapping composite membrane require 10N just can, can know that by table 3 required heat-sealing temperature was about 115 ℃ when candy wrapping composite film heat sealing strength provided by the invention reached 10N, comparative example 1 is needs then.Therefore, adopt the required heat-sealing temperature of candy wrapping composite membrane provided by the invention lower.
The mechanical property and the barrier property of the candy wrapping composite membrane of test implementation example 1～4 preparation, test result is listed in table 4.
The mechanical property of table 4 candy wrapping composite membrane and barrier property test result
As packaging film, use fast automatic packing machine packing that candy is packed with the candy wrapping composite membrane of embodiment 1 preparation, heat-sealing temperature is made as 121 ℃, and package speed can reach 520cut/min～550cut/min, has improved packaging efficiency.
The explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a candy wrapping laminated film is characterized in that, comprises the PETG layer that sets gradually and the cast polypropylene layer of aluminizing;
The said cast polypropylene of aluminizing comprises aluminium coated and the cast polypropylene layer that sets gradually layer by layer, and said cast polypropylene layer comprises corona layer, sandwich layer and the internal layer that sets gradually;
Said internal layer comprises: the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%.
2. candy wrapping laminated film according to claim 1 is characterized in that, said corona layer is the COPP layer.
3. candy wrapping laminated film according to claim 2 is characterized in that, said sandwich layer is the HOPP layer.
4. candy wrapping laminated film according to claim 3 is characterized in that, the thickness ratio of said corona layer, sandwich layer and internal layer is 1: (3.5～3.8): (1.2～1.6).
5. candy wrapping film according to claim 4 is characterized in that, said PETG layer is 1 with the thickness ratio of the cast polypropylene layer of aluminizing: (2～3).
6. candy wrapping laminated film according to claim 4 is characterized in that, the thickness of the said cast polypropylene layer of aluminizing is 28 μ m～32 μ m.
7. candy wrapping laminated film according to claim 1 is characterized in that, the fusing point of said metallocene ternary polymerized polypropylene is 120 ℃～128 ℃.
8. candy wrapping laminated film according to claim 1 is characterized in that, the melt index of said metallocene ternary polymerized polypropylene is 6.5g/10min～7.5g/10min.
9. the preparation method of the said candy wrapping laminated film of claim 1 comprises:
A, with outermost resin, sandwich layer resin and inner layer resin curtain coating cooling and shaping after 210 ℃～250 ℃ extrusion moldings; The film that is comprised skin, sandwich layer and internal layer successively; Outer layer surface to said film carries out corona treatment, is comprised the cast polypropylene film of corona layer, sandwich layer and internal layer successively; Said inner layer resin comprises: the metallocene ternary polymerized polypropylene of 97wt%～99wt% and the opening agent of 1wt%～3wt%;
B, the corona layer of said cast polypropylene film is carried out carrying out after the Surface Treatment with Plasma vacuum aluminum-coated, obtain the cast polypropylene film of aluminizing;
C, to adopt the dry type composite algorithm that pet film and the said cast polypropylene film of aluminizing are carried out compound, obtains the candy wrapping laminated film.
10. preparation method according to claim 9 is characterized in that, input power is 3.4KW～4.0KW in the said Surface Treatment with Plasma operation.
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| CN107323048A (en) * | 2017-08-09 | 2017-11-07 | 嘉兴鹏翔包装材料有限公司 | A kind of inflation at a high speed is packed for VMCPP metallized films automatically |
| CN107415381A (en) * | 2017-04-06 | 2017-12-01 | 黄山永新股份有限公司 | A kind of high-barrier VMCPP films and its production technology |
| CN108099289A (en) * | 2017-12-22 | 2018-06-01 | 温州玉苍新材料有限公司 | A kind of food packing film |
| CN108263060A (en) * | 2018-01-31 | 2018-07-10 | 江苏利特尔绿色包装股份有限公司 | The environmentally friendly food package film of ultralow temperature high speed |
| CN111822300A (en) * | 2020-07-14 | 2020-10-27 | 黄山永新股份有限公司 | Aluminum-plated cast polypropylene film and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0125107A1 (en) * | 1983-05-04 | 1984-11-14 | American Can Company | A plural-layer packaging film, a method of making said film and a bag made therefrom |
| EP0365326A2 (en) * | 1988-10-19 | 1990-04-25 | V.M.B. Limited | Composite plastics film |
| CN1552942A (en) * | 2003-12-18 | 2004-12-08 | 黄山永新股份有限公司 | Producing process for high-separation vacuum aluminium-plating thin film |
| CN1887658A (en) * | 2006-07-27 | 2007-01-03 | 河南省正龙食品有限公司 | Food packing composite film and its production process |
| CN101367281A (en) * | 2008-07-22 | 2009-02-18 | 黄山永新股份有限公司 | Low-temperature heat-sealing polypropylene film and preparation method thereof |
-
2011
- 2011-06-30 CN CN2011101813689A patent/CN102350829A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0125107A1 (en) * | 1983-05-04 | 1984-11-14 | American Can Company | A plural-layer packaging film, a method of making said film and a bag made therefrom |
| EP0365326A2 (en) * | 1988-10-19 | 1990-04-25 | V.M.B. Limited | Composite plastics film |
| CN1552942A (en) * | 2003-12-18 | 2004-12-08 | 黄山永新股份有限公司 | Producing process for high-separation vacuum aluminium-plating thin film |
| CN1887658A (en) * | 2006-07-27 | 2007-01-03 | 河南省正龙食品有限公司 | Food packing composite film and its production process |
| CN101367281A (en) * | 2008-07-22 | 2009-02-18 | 黄山永新股份有限公司 | Low-temperature heat-sealing polypropylene film and preparation method thereof |
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| CN103042765A (en) * | 2013-01-27 | 2013-04-17 | 海宁长宇镀铝材料有限公司 | Extra-low/ultra-low temperature heat-sealing CPP (Casting Poly Propylene) aluminum laminated film and production process thereof |
| CN103072337A (en) * | 2013-01-27 | 2013-05-01 | 海宁长宇镀铝材料有限公司 | CPP aluminizing film with low friction coefficient and production technology thereof |
| CN103231567A (en) * | 2013-04-19 | 2013-08-07 | 黄山永新股份有限公司 | RCPP film for packaging and preparation method thereof |
| CN103231567B (en) * | 2013-04-19 | 2016-05-11 | 黄山永新股份有限公司 | Be used for RCPP film of packing and preparation method thereof |
| CN104129111A (en) * | 2014-07-23 | 2014-11-05 | 厦门正兴宏业印刷有限公司 | Auto tyre packaging film and preparation method |
| CN106113839A (en) * | 2016-07-15 | 2016-11-16 | 黄山永新股份有限公司 | A kind of fruit and vegerable salad packaging composite film and production technology thereof |
| CN107415381A (en) * | 2017-04-06 | 2017-12-01 | 黄山永新股份有限公司 | A kind of high-barrier VMCPP films and its production technology |
| CN107116872A (en) * | 2017-04-06 | 2017-09-01 | 黄山永新股份有限公司 | A kind of high-barrier composite paper-plastic film for package |
| CN107116872B (en) * | 2017-04-06 | 2019-05-28 | 黄山永新股份有限公司 | A kind of high-barrier composite paper-plastic film for package |
| CN107415381B (en) * | 2017-04-06 | 2019-08-09 | 黄山永新股份有限公司 | A kind of high-barrier VMCPP film and its production technology |
| CN107097493A (en) * | 2017-04-26 | 2017-08-29 | 广州市花都联华包装材料有限公司 | A kind of constant humidity is guaranteed the quality flexible packaging film and its manufacture method |
| CN107323048A (en) * | 2017-08-09 | 2017-11-07 | 嘉兴鹏翔包装材料有限公司 | A kind of inflation at a high speed is packed for VMCPP metallized films automatically |
| CN108099289A (en) * | 2017-12-22 | 2018-06-01 | 温州玉苍新材料有限公司 | A kind of food packing film |
| CN108263060A (en) * | 2018-01-31 | 2018-07-10 | 江苏利特尔绿色包装股份有限公司 | The environmentally friendly food package film of ultralow temperature high speed |
| CN111822300A (en) * | 2020-07-14 | 2020-10-27 | 黄山永新股份有限公司 | Aluminum-plated cast polypropylene film and preparation method thereof |
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Application publication date: 20120215 |