CN104057662A - Laminating aluminum plastic composite membrane with patterns on inner surface and production method thereof - Google Patents
Laminating aluminum plastic composite membrane with patterns on inner surface and production method thereof Download PDFInfo
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- CN104057662A CN104057662A CN201410293371.3A CN201410293371A CN104057662A CN 104057662 A CN104057662 A CN 104057662A CN 201410293371 A CN201410293371 A CN 201410293371A CN 104057662 A CN104057662 A CN 104057662A
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Abstract
The invention relates to a laminating aluminum plastic composite membrane with patterns on the inner surface. The laminating aluminum plastic composite membrane with patterns on the inner surface comprises an aluminum foil base plate, a polyethylene film and a laminating resin layer, wherein the upper surface of the laminating resin layer is provided with a pattern printed layer, and the laminating aluminum plastic composite membrane is prepared by the production method including the step of polyurethane adhesive charging, polyurethane adhesive drying, polyurethane adhesive film blow molding, polyethylene film blow molding, laminating resin layer surface treatment and coiling treatment sequentially. The laminating aluminum plastic composite membrane with patterns on the inner surface, which is provided by the invention, has the advantages that compared with an existing composite membrane with a plane inner surface, on the premise of reaching the equal thickness, required materials are saved greatly; the composite membrane needs to be with a certain thickness in hot seal, so that the sealing stability can be ensured, thus materials are saved obviously after the inner surface pattern printed layer is added for the composite membrane; the roughness of the inner surface and the elasticity of the whole composite membrane are improved, so that internal and external bonding is difficult to occur in coiling, and the composite membrane is smooth in running.
Description
Technical field
The present invention relates to a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane and production method.
Background technology
Composite membrane refers to the film that several different films are bonded them together by glue or resin, aluminum-plastic composite membrane is the composite that aluminium foil and plastics are combined, film aluminum-plastic composite membrane is film one deck resin material on aluminium foil, the clad aluminum plastic film being made, above main the unreeling as aluminium foil base material of conventional film aluminum-plastic composite membrane, general thickness is 20-60um, go out polyethylene (PE) in extruder film, ethene-vinyl acetate copolymer (EVA), after the materials such as ethylene-acrylic acid copolymer (EAA), be pressed into composite by chill roll and compression roller, wherein compression roller contact film face, for mirror roller or dull roll, if mirror roller the frosting of composite membrane be bright plane, if dull roll the frosting of composite membrane be dumb light plane, the composite membrane inner surface of two kinds of mode moulding is plane, traditional plane inner membrance good toughness, sealing-strength is high, as sealing Easy open not when epiphragma, plane inner membrance is because use material consolidation simultaneously, while reaching same thickness, need more material, decorative pattern inner membrance is a kind of waste relatively.
Summary of the invention
The problem that the technical problem to be solved in the present invention exists in order to solve existing composite membrane, thus a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane and production method are provided.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane, comprise aluminum foil substrate, described aluminum foil substrate is provided with one deck and is compounded in the polyethylene film on aluminum foil substrate by adhesive for polyurethane, on described polyethylene film, film has the film resin bed that one deck ethene-vinyl acetate copolymer is made, and the upper surface of described film resin bed is provided with printed layer.
Preferably, described polyethylene film is linear density polyethylene, 190 DEG C of temperature, when loading 2.16kg, the melt index of described linear density polyethylene is within every ten minutes, to flow out 0.175～0.234g, linear density polyethylene has higher softening temperature and melt temperature, can improve the processability of film resin bed.
Preferably, 190 DEG C of temperature, when loading 2.16kg, the melt index of described ethene-vinyl acetate copolymer is to flow out 29.7～35.8g in every ten minutes, can effectively control the moulding of film resin bed, is conducive to printed layer moulding, and heat sealability is good.
Preferably, the cross section of described printed layer on film resin bed is grid-shaped, and in described grid-shaped, grid is to lower recess setting, simple in structure, and good forming effect has been saved material cost greatly.
Preferably, the thickness of described aluminum foil substrate is 20～60 μ m, the thickness of described adhesive for polyurethane on aluminum foil substrate is 2～3 μ m, thickness 25～40 μ m of described polyethylene film, thickness 15～30 μ m of described film resin bed, Practical Performance is good, can adapt to different products, be convenient to processing, result of use is good, in the time that the thickness of aluminum foil substrate is less than 20 μ m, stability after the involution of aluminum foil substrate is poor, fragile, in the time that the thickness of aluminum foil substrate is greater than 60 μ m, greatly improve production cost, result of use is poor, be unfavorable for film extruding, result of use is poor, when adhesive for polyurethane on aluminum foil substrate thickness while being less than 2 μ m, be unfavorable for the fixing compound of polyethylene film, easily come off, when adhesive for polyurethane on aluminum foil substrate thickness while being greater than 3 μ m, be unfavorable for the oven dry of adhesive for polyurethane, it is unreliable to connect, in the time that the thickness of polyethylene film is less than 25 μ m, be unfavorable for the moulding of film resin bed, result of use is poor, in the time that the thickness of polyethylene film is greater than 40 μ m, be unfavorable for polyethylene film blow molding, processing difficulties, in the time that the thickness of film resin bed is less than 15 μ m, in the time carrying out extrusion modling, the thickness of film resin bed is too low fragile, heat sealability is low, in the time that the thickness of film resin bed is greater than 40 μ m, be unfavorable for the moulding of film resin bed, result of use is poor, processing difficulties.
The production method that a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane as above adopts, comprises the following steps successively:
A) adhesive for polyurethane material loading: adjust even thickness by two roller coating rollers adhesive for polyurethane is coated on aluminum foil substrate;
B) adhesive for polyurethane dry: by step a) be coated with adhesive for polyurethane be coated with aluminum foil substrate carry out drying and processing by baking oven, the temperature of oven dry is 50～80 DEG C, the charging rate of oven dry is 90～150m/min;
C) polyethylene film blowing: by inflation film manufacturing machine at b) heating and melting layer of polyethylene film on the adhesive for polyurethane layer of aluminum foil substrate after treatment of step;
D) film of film resin bed: by extruder at c) film resin bed in film on the polyethylene film of aluminum foil substrate after treatment of step;
E) film resin layer surface processing: by compression roller to steps d) squeeze out printed layer on film resin bed after treatment, and rapidly film resin bed is carried out to cooling processing by chill roll;
F) rolling processing: by winder to step e) aluminum foil substrate after treatment carry out rolling processing.
Preferably, the outer surface of the compression roller that step e) adopts is arranged with one deck is convenient to the extrusion die plate of printed layer machine-shaping, the outer surface of described extrusion die plate is provided with one deck adherent layer, can change extrusion die plate according to different products, Practical Performance is good, the setting of adherent layer, effectively raises the discharging demoulding of composite membrane, simple in structure.
In sum, advantage of the present invention: polyethylene film is compounded on aluminum foil substrate by adhesive for polyurethane, and the film resin bed that film one deck ethene-vinyl acetate copolymer is made on polyethylene film, ice is provided with printed layer on film resin bed, due to ethene-vinyl acetate copolymer, to have heat sealability good, molding effect is good, simple in structure, easy to process, it is the composite membrane of plane with respect to existing inner surface, the present invention has the following advantages: 1) under the prerequisite that reaches same thickness, needed material has been saved greatly, and composite membrane need to possess certain thickness in the time of heat-sealing, the stability of guarantee involution like this, so composite membrane is obviously saved material after increasing inner surface printed layer, 2) improve the roughening of inner surface and the elasticity of whole composite membrane, while making rolling, be difficult for inside and outside adhesion, also more suitable steady in the time walking machine, and by adhesive for polyurethane material loading, adhesive for polyurethane is dried, polyethylene film blowing, the film of film resin bed, the processing of film resin layer surface, the production method of rolling processing processes, by thickness and the material loading uniformity of the fine control adhesive for polyurethane of two roller roller coating function, be convenient to the follow-up oven dry to adhesive for polyurethane, by drying baker, adhesive for polyurethane is dried, adopting temperature is 50～80 DEG C, charging rate is the drying baker of 90～150m/min, make mucus in adhesive for polyurethane obtain bone dry and become solid, drying property is good, be convenient to polyethylene film blowing, inflation film manufacturing machine is convenient to the blowing of polyethylene film, good forming effect, stability is good, extruder control ethene-vinyl acetate copolymer film is on polyethylene film, easy to process, stability is good, by compression roller, film resin layer surface is processed into printed layer, and the composite membrane of extrusion modling is carried out cooling rapidly by cooling layer, be conducive to the demoulding, be convenient to the rolling processing of follow-up winder to composite membrane.
Detailed description of the invention
A kind of inner surface belt decorative pattern film aluminum-plastic composite membrane, comprise aluminum foil substrate, described aluminum foil substrate adopts the aluminium foil of 8011 models that processability is good, described aluminum foil substrate is provided with one deck and is compounded in the polyethylene film on aluminum foil substrate by adhesive for polyurethane, on described polyethylene film, film has the film resin bed that one deck ethene-vinyl acetate copolymer is made, the upper surface of described film resin bed is provided with printed layer, described polyethylene film is linear density polyethylene, 190 DEG C of temperature, when loading 2.16kg, the melt index of described linear density polyethylene is within every ten minutes, to flow out 0.175～0.234g, linear density polyethylene has higher softening temperature and melt temperature, can improve the processability of film resin bed, 190 DEG C of temperature, when loading 2.16kg, the melt index of described ethene-vinyl acetate copolymer is within every ten minutes, to flow out 29.7～35.8g, can effectively control the moulding of film resin bed, be conducive to printed layer moulding, heat sealability is good, the cross section of described printed layer on film resin bed is grid-shaped, in described grid-shaped, grid is to lower recess setting, simple in structure, good forming effect, greatly save material cost, the thickness of described aluminum foil substrate is 20～60 μ m, the thickness of described adhesive for polyurethane on aluminum foil substrate is 2～3 μ m, thickness 25～40 μ m of described polyethylene film, thickness 15～30 μ m of described film resin bed, Practical Performance is good, can adapt to different products, be convenient to processing, result of use is good, in the time that the thickness of aluminum foil substrate is less than 20 μ m, stability after the involution of aluminum foil substrate is poor, fragile, in the time that the thickness of aluminum foil substrate is greater than 60 μ m, greatly improve production cost, result of use is poor, be unfavorable for film extruding, result of use is poor, when adhesive for polyurethane on aluminum foil substrate thickness while being less than 2 μ m, be unfavorable for the fixing compound of polyethylene film, easily come off, when adhesive for polyurethane on aluminum foil substrate thickness while being greater than 3 μ m, be unfavorable for the oven dry of adhesive for polyurethane, it is unreliable to connect, in the time that the thickness of polyethylene film is less than 25 μ m, be unfavorable for the moulding of film resin bed, result of use is poor, in the time that the thickness of polyethylene film is greater than 40 μ m, be unfavorable for polyethylene film blow molding, processing difficulties, in the time that the thickness of film resin bed is less than 15 μ m, in the time carrying out extrusion modling, the thickness of film resin bed is too low fragile, heat sealability is low, in the time that the thickness of film resin bed is greater than 40 μ m, be unfavorable for the moulding of film resin bed, result of use is poor, processing difficulties.
The production method that a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane as above adopts, comprises the following steps successively:
A) adhesive for polyurethane material loading: adjust even thickness by two roller coating rollers adhesive for polyurethane is coated on aluminum foil substrate;
B) adhesive for polyurethane is dried: the aluminum foil substrate that step a) is coated with to adhesive for polyurethane painting is by drying
Case carries out drying and processing, and the temperature of oven dry is 50～80 DEG C, and the charging rate of oven dry is 90～150m/min;
C) polyethylene film blowing: by inflation film manufacturing machine at b) heating and melting layer of polyethylene film on the adhesive for polyurethane layer of aluminum foil substrate after treatment of step;
D) film of film resin bed: by extruder at c) film resin bed in film on the polyethylene film of aluminum foil substrate after treatment of step;
E) film resin layer surface processing: by compression roller to steps d) squeeze out grid type decorative pattern on film resin bed after treatment, and rapidly film resin bed is carried out to cooling processing by chill roll;
F) rolling processing: by winder to step e) aluminum foil substrate after treatment carry out rolling processing.
The outer surface of the compression roller that step e) adopts is arranged with one deck is convenient to the extrusion die plate of printed layer machine-shaping, the outer surface of described extrusion die plate is provided with one deck adherent layer, can change extrusion die plate according to different products, Practical Performance is good, the setting of adherent layer, effectively raise the discharging demoulding of composite membrane, simple in structure.
By adhesive for polyurethane, polyethylene film is compounded on aluminum foil substrate, and the film resin bed that film one deck ethene-vinyl acetate copolymer is made on polyethylene film, ice is provided with printed layer on film resin bed, due to ethene-vinyl acetate copolymer, to have heat sealability good, molding effect is good, simple in structure, easy to process, it is the composite membrane of plane with respect to existing inner surface, the present invention has the following advantages: 1) under the prerequisite that reaches same thickness, needed material has been saved greatly, and composite membrane need to possess certain thickness in the time of heat-sealing, the stability of guarantee involution like this, so composite membrane is obviously saved material after increasing inner surface printed layer, 2) improve the roughening of inner surface and the elasticity of whole composite membrane, while making rolling, be difficult for inside and outside adhesion, also more suitable steady in the time walking machine, and by adhesive for polyurethane material loading, adhesive for polyurethane is dried, polyethylene film blowing, the film of film resin bed, the processing of film resin layer surface, the production method of rolling processing processes, by thickness and the material loading uniformity of the fine control adhesive for polyurethane of two roller roller coating function, be convenient to the follow-up oven dry to adhesive for polyurethane, by drying baker, adhesive for polyurethane is dried, adopting temperature is 50～80 DEG C, charging rate is the drying baker of 90～150m/min, make mucus in adhesive for polyurethane obtain bone dry and become solid, drying property is good, be convenient to polyethylene film blowing, inflation film manufacturing machine is convenient to the blowing of polyethylene film, good forming effect, stability is good, extruder control ethene-vinyl acetate copolymer film is on polyethylene film, easy to process, stability is good, by compression roller, film resin layer surface is processed into printed layer, and the composite membrane of extrusion modling is carried out cooling rapidly by cooling layer, be conducive to the demoulding, be convenient to the rolling processing of follow-up winder to composite membrane.
Claims (7)
1. an inner surface belt decorative pattern film aluminum-plastic composite membrane, it is characterized in that: comprise aluminum foil substrate, described aluminum foil substrate is provided with one deck and is compounded in the polyethylene film on aluminum foil substrate by adhesive for polyurethane, on described polyethylene film, film has the film resin bed that one deck ethene-vinyl acetate copolymer is made, and the upper surface of described film resin bed is provided with printed layer.
2. a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane according to claim 1, it is characterized in that: described polyethylene film is linear density polyethylene, 190 DEG C of temperature, when loading 2.16kg, the melt index of described linear density polyethylene is within every ten minutes, to flow out 0.175～0.234g.
3. a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane according to claim 1, is characterized in that: 190 DEG C of temperature, when loading 2.16kg, the melt index of described ethene-vinyl acetate copolymer is within every ten minutes, to flow out 29.7～35.8g.
4. a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane according to claim 1, is characterized in that: the cross section of described printed layer on film resin bed is grid-shaped, and in described grid-shaped, grid is to lower recess setting.
5. a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane according to claim 1, it is characterized in that: the thickness of described aluminum foil substrate is 20～60 μ m, the thickness of described adhesive for polyurethane on aluminum foil substrate is 2～3 μ m, thickness 25～40 μ m of described polyethylene film, thickness 15～30 μ m of described film resin bed.
6. the production method that a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane as claimed in claim 1 adopts, is characterized in that: comprise the following steps successively:
A) adhesive for polyurethane material loading: adjust even thickness by two roller coating rollers adhesive for polyurethane is coated on aluminum foil substrate;
B) adhesive for polyurethane dry: by step a) be coated with adhesive for polyurethane be coated with aluminum foil substrate carry out drying and processing by baking oven, the temperature of oven dry is 50～80 DEG C, the charging rate of oven dry is 90～150m/min;
C) polyethylene film blowing: by inflation film manufacturing machine at b) heating and melting layer of polyethylene film on the adhesive for polyurethane layer of aluminum foil substrate after treatment of step;
D) film of film resin bed: by extruder at c) film resin bed in film on the polyethylene film of aluminum foil substrate after treatment of step;
E) film resin layer surface processing: by compression roller to steps d) squeeze out printed layer on film resin bed after treatment, and rapidly film resin bed is carried out to cooling processing by chill roll;
F) rolling processing: by winder to step e) aluminum foil substrate after treatment carry out rolling processing.
7. the production method that a kind of inner surface belt decorative pattern film aluminum-plastic composite membrane according to claim 6 adopts, it is characterized in that: the outer surface of the compression roller that step e) adopts is arranged with one deck is convenient to the extrusion die plate of printed layer machine-shaping, and the outer surface of described extrusion die plate is provided with one deck adherent layer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111619191A (en) * | 2020-05-18 | 2020-09-04 | 武汉盛大联合纸业有限公司 | Paperboard film-coating aluminum foil compounding process and compounding machine thereof |
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Application publication date: 20140924 |