CN101607458B - Medical paper-plastic composite blue film and preparation method thereof - Google Patents
Medical paper-plastic composite blue film and preparation method thereof Download PDFInfo
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- CN101607458B CN101607458B CN2009101441706A CN200910144170A CN101607458B CN 101607458 B CN101607458 B CN 101607458B CN 2009101441706 A CN2009101441706 A CN 2009101441706A CN 200910144170 A CN200910144170 A CN 200910144170A CN 101607458 B CN101607458 B CN 101607458B
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Abstract
The invention discloses a medical paper-plastic composite blue film and a preparation method thereof, the medical paper-plastic composite blue film is formed by combining a biaxially orientated polyester film which is printed and coated and a cast polypropylene film, the cast polypropylene film is divided into three layers of a corona layer, an intermediate layer and a heat seal layer, the raw material component of the corona layer is additive-free binary copolymer propylene resin RF401, the raw material components of the intermediate layer are 85-95% of binary random copolymer polypropylene resin F800E and 5-15% of ethylene-olefin copolymer thermoplastic elastomer A-4085S, and the raw material components of the heat seal layer are 85-90% of binary copolymer propylene resin RF402 containing anti-sticky slipping agent, 5-15% of ethylene-olefin copolymer thermoplastic elastomer A-4085S, 1-2% of inorganic anti-sticky agent ABPP10S and 0.5-1.5% of slip modified masterbatch SE07PP. The preparation method comprises the steps of printing, preparation of the cast polypropylene film, combination of the biaxially orientated polyester film and the cast polypropylene film and cutting. The medical paper-plastic composite blue film is matched with medical packing paper which can carry out heat sealing, steam sterilization and air infiltration blocking for carrying out packing of medical items, thereby reducing the packing cost and realizing safety performance of packing applications and environment-friendly treatment of packing wastes.
Description
Technical field
The present invention relates to medical package film and preparation method thereof, specifically is a kind of medical paper-plastic composite blue film and preparation method thereof.
Background technology
In recent years, along with the development of medical and health care system, people require also more and more higher to Medical Consumption, and the packing of any medical equipment is all pursued disposable use, stops cross-infection; In conjunction with environmental protection concept, packing uses discarded object to satisfy the demand of recycling again simultaneously.
All the time, all using paper-paper composite medical packaging film on the market both at home and abroad, the high-temperature sterilization packing that is used for hospital gauze sheet, operation consumptive material (apparatus), medical catheter, aseptic cotton rod (ball) and ophthalmology, dental instrument, on packaged form, ensure medical safety to greatest extent, realized the Reclaim of package waste utilization.Yet paper-paper composite medical packaging film use cost is higher, the wet sterilization sterilizing operation behind the finished product packing has bigger bale broken danger and packing material not to be presented in face of the user intuitively.
Summary of the invention
The invention provides a kind of medical paper-plastic composite blue film and preparation method thereof, but the supporting heat sealable moise-heat sterilization of described medical paper-plastic composite blue film, the medical packing paper that can intercept air penetration carry out the packing of medical object, and reduced packing cost, realized the security performance of packaging applications and the environmental protection treatment of packaging waste.
Technical scheme of the present invention is:
Medical paper-plastic composite blue film, it is characterized in that: described medical paper-plastic composite blue film is to be composited by biaxially oriented polyester film and cast polypropylene film that printing was coated with, described cast polypropylene film is divided into the corona layer, three layers of intermediate layer and hot sealing layers, the raw material components of described corona layer is non-additive binary copolymerization allyl resin RF401, the raw material components in described intermediate layer is the binary atactic copolymerized polypropene resin F800E of 85-95% and ethylene-octene thermoplastic elastic body A-4085S of 5-15%, and the raw material components of described hot sealing layer is the binary copolymerization allyl resin RF402 that 85-90% contains antiseized slipping agent, ethylene-octene thermoplastic elastic body A-4085S of 5-15%, the smooth modified master SE07PP of 1-2% inorganic anti stick ABPP10S and 0.5-1.5%.
The preparation method of described medical paper-plastic composite blue film is characterized in that: may further comprise the steps:
(1), printing: biaxially oriented polyester film carries out monochromatic coating by intaglio press, and baking temperature is 65 ℃, and the printing coating speed is 180-200m/min;
(2), the preparation of cast polypropylene film: each components of three layers of the corona layer of cast polypropylene film, intermediate layer and hot sealing layers is put into the die head that the high speed casting machine carries out molten resin by proportioning extrude, the sharp cooling roll cooling and shaping, adjust air gap by air knife during cooling and shaping, the gap of air knife is 1-2mm, the angle of air knife is 13-17%, select for use beta thickness gauge to carry out the thickness measuring of film then, carry out the sided corona treatment of film surface then, the beat of film is handled and is cut edge and reclaim;
(3), compound: the biaxially oriented polyester film and the cast polypropylene film that will print coating are undertaken compound by dry compound machine, used dry-type composite glue stick is selected bi-component polyurethane adhesive for use, add wherein that methyl blue is mixed colours, ethyl acetate dilutes dissolving as diluent, concentration is controlled at examines grace cup 17-20 second for No. 3, described bake out temperature is 65-75 ℃, and the speed of dry compound machine is 110-130m/min;
(4), cut: according to the required different in width of consumer packaging, length, specification, compound good packaging film is cut the rolling film, end face flatness≤1mm, layout position does not have skew, joint is calm, the space of a whole page is identical.
The preparation method of described medical paper-plastic composite blue film is characterized in that: described ethyl acetate by volume wherein water content less than 0.1%, pure content less than 0.1%, free acid content is less than 0.004%; The vacuum tank of described cast polypropylene film by installing between extrusion die and the sharp cooling roll makes cast polypropylene film be close to sharp cooling roll.
Biaxially oriented polyester film of the present invention has following advantage:
1, mechanical property is good, and its toughness is maximum in thermoplastic commonly used, and the hot strength of film can compare favourably with aluminium foil, and impact strength is 3～5 times of other film, and folding resistance is good, but tear-resistant intensity difference;
2, oil resistant, anti-fat, anti-diluted acid, diluted alkaline, anti-most of solvents, but not anti-concentrated acid, concentrated base;
3, have good high and low temperature resistance, can be in 120 ℃ of temperature ranges use for a long time, short-term is used can anti-150 ℃ of high temperature, can anti--70 ℃ of low temperature, and very little to its mechanical performance influence during high and low temperature;
4, gas and vapor permeability are low, have good choke, water, oil and peculiar smell performance;
5, transparency height, but block ultraviolet, glossiness is good;
6, nontoxic, tasteless, wholesomeness is good, can be directly used in packaging for foodstuff;
7, biaxial tension can make the vertical and horizontal mechanical property of polyester resin film improve, and therefore, biaxially oriented film becomes the staple product of this material.
Binary copolymerization allyl resin RF401 of the present invention, RF402 and F800E all can anti-121 ℃ of high-temperature sterilizations; Described ethylene elastomer fusing point is at 66 ℃, and brittle temperature is lower than-70 ℃, can make film have excellent anti-freezing property after adding; Described inorganic anti stick ABPP10S can prevent to cause sticking mutually because of absorbing airborne aqueous vapor after the film take-up; Described smooth modified master SE07PP can reduce the coefficient of friction of film.
Bi-component polyurethane adhesive of the present invention is that a kind of functional form two component polyurethane that is applicable to compound, the anti-medium of fine aluminium, anti-slipping agent, anti-pasteurize is compound sticks with glue agent; Compound smell is little; Anti-dielectric behavior excellence; Additive in various thick PE (〉=60 μ) film there is certain pardon, the high and obviously decay of nothing of combined strength bination; High initial bonding strength, high fluidity, coating and wettability are good, and transparency is good, and glued membrane is pliable and tough, and is ageing-resistant, frost resistance good; Sanitation performance meets following safe and sanitary rules:
The Chinese food health legislation;
The 21CFR175.105 of Food and Drug Administration (FDA);
The plastics package 2002/72/EC of European Union
Product index:
The key technical indexes of medical paper-plastic composite blue film
The index of medical paper-plastic composite blue film and domestic conventional medical packaging film
The specific embodiment
Medical paper-plastic composite blue film, be to be composited by biaxially oriented polyester film and cast polypropylene film that printing was coated with, described cast polypropylene film is divided into the corona layer, three layers of intermediate layer and hot sealing layers, the raw material components of described corona layer is non-additive binary copolymerization allyl resin RF401, the raw material components in described intermediate layer is the binary atactic copolymerized polypropene resin F800E of 85-95% and ethylene-octene thermoplastic elastic body A-4085S of 5-15%, and the raw material components of described hot sealing layer is the binary copolymerization allyl resin RF402 that 85-90% contains antiseized slipping agent, ethylene-octene thermoplastic elastic body A-4085S of 5-15%, the smooth modified master SE07PP of 1-2% inorganic anti stick ABPP10S and 0.5-1.5%.
Ethylene-octene thermoplastic elastic body A-4085S is the Mitsui chemistry---a trade mark in the TAFMER series of products that Mitsui Chemicals produces.
The preparation method of medical paper-plastic composite blue film:
(1), printing: biaxially oriented polyester film is put the monochromatic coating of row into by two of 11 look intaglio press, and baking temperature is 65 ℃, and the printing coating speed is 180-200m/min;
(2), the preparation of cast polypropylene film: may further comprise the steps:
Extrude: after the resin for preparing top layer and sandwich layer by certain prescription was put into hopper, the plastics that contact with screw rod were bitten by screw rod, along with the rotation of screw rod is advanced to heading forcibly by screw thread.Plastics move forward along screw rod.Raising screw rod by longitudinal groove increases feed rate to the thrust of plastics.Porous plate is used for supporting screen pack, makes material become rectilinear motion by rotatablely moving with dress filter screen thereon simultaneously, stops the material of impurity and not plasticizing to pass through, and increases the back pressure of materials flow.The CPP melt is by hanger-style die, and the centre and the control of two ends film thickness of melt is even, forms flat-shaped extruding.
Cooling and shaping:
Molten resin is extruded curtain coating to the sharp cooling roll surface from die head, is formed film after the cooling rapidly.Casting roller relies on forces water circulation cooling, and we reduce the roller surface temperature difference in order to improve cooling effect, and casting roller is taked the jacket type design, promptly is hollow in the roller.
The curtain coating chill roll has the automatic temperature-adjusting control system usually and controls its temperature, and when water temperature in the roller surpassed design temperature, the magnetic valve of control water inlet was opened automatically, covered cold water and discharged hot water, reached design temperature up to temperature.
We adjust air gap by air knife, make film be close to the casting roller surface, thereby improve cooling effect, and output is than clear films.Air velocity is wanted evenly in whole width, otherwise the quality of film will be affected.We are controlled at 1-2mm the gap of air knife, and the angle of air knife also directly has influence on the quality of film, and we select to be controlled at 16%.
Vacuum tank is mounted in a negative pressure device between die head and the casting roller, and it utilizes the vacuum principle that the air between film and the casting roller surface is taken out, and improves the subsides roller effect of film, avoids producing bubble between film and the roller.Simultaneously, vacuum tank can also be taken out the gaseous material that volatilizes in the molten resin, reduces it in the condensation on casting roller surface and pollute film.
Thickness measuring:
In the high-speed and continuous production process, the thickness measuring of film must use contactless tracking to detect automatically.In order to guarantee the thickness uniformity of film, we have adopted radio isotope such as beta thickness gauge.By the continuous radiation stream of constant radiation source emission, measure the film of thickness and be incident upon radiation receiver through needing.The data of measuring gained can feed back to computer automatically and handle, and handle the back and adjust die gap automatically by the mould port expansion bolt, and film thickness is kept evenly.
Sided corona treatment:
Sided corona treatment is that the energy that radio-frequency generator produces is passed through electrode, forms high voltage electric field between electrode and sided corona treatment roller, and electrode quickens the electronics of effusion, collision is defeated by air with energy mutually, and excites air molecule to produce the emission photon, make air ionization and decomposition, form O
3And nitrogen oxide; Simultaneously, high energy electron and ion bombardment plastic sheeting surface, make its chain molecule fracture, produce free radical and air corona product generation oxidation, cross-linking reaction, make film surface polarization group, film surface is activated, part ion injects film, make surface coarsening, thereby increase the surface tension of film, the printing performance of improved thin film and adhesive power.
The intensity of sided corona treatment is relevant with the gap between the dizzy treatment tube of electrode-electric with the voltage height of electrode, voltage height, little with the distance of sided corona treatment roller, and the sided corona treatment effect is strong; Whether with sandwiching between film-sided corona treatment roller air is relevant, will cause the back side of film also processed as accompanying air between film and the treatment tube; Relevant with sided corona treatment roller, electrode surface cleannes, sided corona treatment roller surface is very dirty, can weaken the effect of sided corona treatment.
Beat:
Deflection device is made up of beat frame and servomotor, and effect is to eliminate the thickness deviation accumulation, makes the volume film flat appearance after the rolling.The beat frame is done the closed loop moving that track is a parallelogram under the driving of motor, its result makes the film move left and right, eliminates film thickness deviation accumulation transversely with this.
Cut edge and reclaim:
Because constriction will take place on the melt film both sides of flowing out from die head, causes the casting films both sides to have the extremely uneven part of thickness, this a part of width is about 30cm (die width) generally.We downcut back online recovery with it for reducing production costs before the rolling on the curtain coating production line, can reduce production costs.
(3), compound: the biaxially oriented polyester film and the cast polypropylene film that will print coating are undertaken compound by dry compound machine, compound oven dry distance has extended in the recombination process, increased the composite glue solution thermostatically-controlled equipment, used dry-type composite glue stick is selected bi-component polyurethane adhesive for use, wherein adding methyl blue mixes colours, ethyl acetate dilutes dissolving as diluent, ethyl acetate by volume wherein water content less than 0.1%, alcohol content is less than 0.1%, free acid content is less than 0.004%, the concentration of bi-component polyurethane adhesive is controlled at examines grace cup 17-20 second for No. 3, described bake out temperature is 65-75 ℃, the speed of dry compound machine is 110-130m/min, does not have compound pit, the cutter silk, bubble, wrinkling, wire drawing, phenomenons such as scratch and glue line;
(4), cut: according to the required different in width of consumer packaging, length, specification, compound good packaging film is cut the rolling film, end face flatness≤1mm, layout position does not have skew, joint is calm, the space of a whole page is identical.
Claims (2)
1. medical paper-plastic composite blue film, it is characterized in that: described medical paper-plastic composite blue film is to be composited by biaxially oriented polyester film and cast polypropylene film that printing was coated with, described cast polypropylene film is divided into the corona layer, three layers of intermediate layer and hot sealing layers, the raw material components of described corona layer is non-additive binary copolymerization allyl resin RF401, the raw material components in described intermediate layer is the binary atactic copolymerized polypropene resin F800E of 85-95% and ethylene-octene thermoplastic elastic body A-4085S of 5-15%, and the raw material components of described hot sealing layer is the binary copolymerization allyl resin RF402 that 85-90% contains antiseized slipping agent, ethylene-octene thermoplastic elastic body A-4085S of 5-15%, the smooth modified master SE07PP of 1-2% inorganic anti stick ABPP10S and 0.5-1.5%.
2. the preparation method of medical paper-plastic composite blue film according to claim 1 is characterized in that: may further comprise the steps:
(1), printing: biaxially oriented polyester film carries out monochromatic coating by intaglio press, and baking temperature is 65 ℃, and the printing coating speed is 180-200m/min;
(2), the preparation of cast polypropylene film: each components of three layers of the corona layer of cast polypropylene film, intermediate layer and hot sealing layers is put into the die head that the high speed casting machine carries out molten resin by proportioning extrude, the sharp cooling roll cooling and shaping, adjust air gap by air knife during cooling and shaping, the gap of air knife is 1-2mm, the angle of air knife is 13-17%, select for use beta thickness gauge to carry out the thickness measuring of film then, carry out the sided corona treatment of film surface then, the beat of film is handled and is cut edge and reclaim;
(3), compound: the biaxially oriented polyester film and the cast polypropylene film that will print coating are undertaken compound by dry compound machine, used dry-type composite glue stick is selected bi-component polyurethane adhesive for use, add wherein that methyl blue is mixed colours, ethyl acetate dilutes dissolving as diluent, the concentration of bi-component polyurethane adhesive is controlled at examines grace cup 17-20 second for No. 3, described bake out temperature is 65-75 ℃, and the speed of dry compound machine is 110-130m/min;
(4), cut: according to the required different in width of consumer packaging, length, specification, compound good packaging film is cut the rolling film, end face flatness≤1mm, layout position does not have skew, joint is calm, the space of a whole page is identical.
3. the preparation method of medical paper-plastic composite blue film according to claim 2 is characterized in that: described ethyl acetate by volume wherein water content less than 0.1%, pure content less than 0.1%, free acid content is less than 0.004%; The vacuum tank of described cast polypropylene film by installing between extrusion die and the sharp cooling roll makes cast polypropylene film be close to sharp cooling roll.
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| CN2009101441706A CN101607458B (en) | 2009-07-17 | 2009-07-17 | Medical paper-plastic composite blue film and preparation method thereof |
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| CN2009101441706A CN101607458B (en) | 2009-07-17 | 2009-07-17 | Medical paper-plastic composite blue film and preparation method thereof |
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| CN101607458B true CN101607458B (en) | 2011-05-18 |
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| CN102173149B (en) * | 2011-01-07 | 2013-04-24 | 广州永新包装有限公司 | Antibacterial composite film used for vacuum packing of household articles and preparation method thereof |
| CN102501526A (en) * | 2011-11-04 | 2012-06-20 | 任丘市京开塑业有限公司 | Cast polypropylene heavy packaging film |
| CN103862685B (en) * | 2012-12-13 | 2016-03-23 | 深圳市阳光普照广告有限公司 | Handrail film-forming method |
| 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 |
| CN103192570B (en) * | 2013-04-19 | 2015-04-15 | 黄山永新股份有限公司 | High-resistance steam resistant packaging film convenient for direct microwave heating and preparation method thereof |
| CN103802432A (en) * | 2014-01-23 | 2014-05-21 | 黄山永新股份有限公司 | Transparent, high-barrier, cooking-resistant and easy-to-tear cover film and preparation method thereof |
| CN104494178A (en) * | 2014-12-30 | 2015-04-08 | 广东联塑机器制造有限公司 | Wide-width high-speed cast film production line |
| CN112549715A (en) * | 2020-12-01 | 2021-03-26 | 黄山永新股份有限公司 | Recyclable liquid-washing small packaging film and production process thereof |
| CN112677610A (en) * | 2020-12-30 | 2021-04-20 | 大连大富塑料彩印有限公司 | Ultra-low temperature heat-sealing type curtain coating polypropylene aluminized substrate film |
| CN116061538A (en) * | 2021-10-29 | 2023-05-05 | 江苏朋庆医用科技有限公司 | Medical paper production equipment and production process |
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