CN105235345A - Blister packaging film for steam sterilization and manufacturing method thereof - Google Patents
Blister packaging film for steam sterilization and manufacturing method thereof Download PDFInfo
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- CN105235345A CN105235345A CN201510759358.7A CN201510759358A CN105235345A CN 105235345 A CN105235345 A CN 105235345A CN 201510759358 A CN201510759358 A CN 201510759358A CN 105235345 A CN105235345 A CN 105235345A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Wrappers (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a blister packaging film for steam sterilization. The blister packaging film for steam sterilization comprises seven layers. The layer A is made from polyamide 6, the layer B is made from polypropylene bonding resin modified by anhydride, the layer C is made from 60-80% homo-polypropylene and 20-40% polypropylene elastomers, the layer D is made from polypropylene bonding resin modified by anhydride, the layer E is made from polyamide resin, the layer F is made from polypropylene bonding resin modified by anhydride, and the layer G is made from 30-50% binary polypropylene and 50-70% ternary polypropylene. The thicknesses of the layer A, the layer B, the layer C, the layer D, the layer E, and the layer F account for 5-10%, 5-10%, 20-30%, 5-10%, 5-10%, and 5-10% of the total thickness of the blister packaging film respectively, the rest is the layer G, and the total thickness is 100%. The blister packaging film for steam sterilization is obtained through extrusion, film blowing, air-cooling and water-cooling shaping, surface treatment, and rolling-up, the compatibility of all the layers is high, mechanical strength of products is high, the polypropylene and steam paper heat-seal effect is good, and the blister packaging film is resistant to a high temperature of 126-130 DEG C and can be used for steam sterilization.
Description
Technical field
The present invention relates to plastic packaging film field, be specifically related to for a kind of plastic packaging film for moise-heat sterilization packing medical dressing and preparation method thereof.
Background technology
The paper that medical blister packaging film is mainly used in disposable preformed sterile system easily tears, moulds the packaging of the medicine equipment articles for use easily torn.Now general operating room medical equipment must be carried out thorough sterilizing, just can guarantee the life security of patient after being adopted plastic packaging film packaging before dispatching from the factory.The method the most frequently used for the sterilization of medical equipment after plastic packaging film packaging is high-temperature sterilization, namely 126 DEG C of-130 DEG C of high-temperature sterilizations 30 minutes, or with killing bacterium residual in medical equipment in Penetration of ethylene oxide to film.But common plastic packaging film is unable to bear the high temperature of degree more than 100, and oxirane also cannot penetrate in film, these equipment directly use can bring very large hidden danger to the life of patient.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of plastic packaging film for moise-heat sterilization and preparation method thereof is provided.
For achieving the above object, the present invention is by the following technical solutions:
For a plastic packaging film for moise-heat sterilization, comprise 7 layers, be followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin;
C layer: HOPP and polypropylene elastomer, HOPP accounts for the 60-80% of C layer raw material gross weight, and polypropylene elastomer accounts for the 20-40% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin;
E layer: polyamide;
F layer: anhydride modified polypropylene binder resin;
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for the 30-50% of G layer raw material gross weight, and ternary polypropylene accounts for the 50-70% of G layer raw material gross weight;
The gross thickness that each layer thickness accounts for plastic packaging film is:
A layer 5-10%;
B layer 5-10%;
C layer 20-30%;
D layer 5-10%;
E layer 5-10%;
F layer 5-10%;
All the other are G layer, and gross thickness is 100%.
Further, described anhydride modified polypropylene binder resin is the PX6002 that company of Leander Basel produces.
Described polypropylene elastomer is the propenyl elastomer VM-3000 of company of U.S. of Weida.
Described polyamide is the copolymer of homopolymerization polyamide 6 or polyamide 6 and polyamide 66, and relative viscosity is 2-5.5, can increase the physical and mechanical properties of film, in order to improve the temperature difference of film, improves the intensity of plastic uptake rear film.
The preparation method of the plastic packaging film for moise-heat sterilization of the present invention, comprise the following steps: 1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then each runner each layer component of spiral center die head is passed through in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming; 2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 10-60m/min, and the thickness of film is different, adopts different hauling speeds; 3) above-mentioned film is adopted water-cooled shaping; 4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain described a kind of plastic packaging film for moise-heat sterilization;
Wherein, seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, the temperature of each layer fuselage and die head is as follows: A layer temperature 230-245 DEG C, B layer temperature 215-230 DEG C, C layer temperature 210-230 DEG C, D layer temperature 215-230 DEG C, E layer temperature 230-245 DEG C, F layer temperature 205-245 DEG C, G layer temperature 195-225 DEG C, die head temperature 220-245 DEG C;
Each layer thickness is different, and adopt different screw speeds, each layer screw speed is as follows: A layer rotating speed 15-50r/min, B layer rotating speed 15-50r/min, C layer rotating speed 20-60r/min, D layer rotating speed 10-50r/min, E layer rotating speed 10-50r/min, F layer rotating speed 10-50r/min, G layer rotating speed 20-60r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 15-40Mpa, B stressor layer 15-40Mpa, C stressor layer 20-50Mpa, D stressor layer 15-40Mpa, E stressor layer 15-40Mpa, F stressor layer 15-40Mpa, G stressor layer 20-50Mpa.
Further, described step 4) gross thickness of plastic packaging film that obtains is 0.05-0.25mm.
In the present invention, the binder resin of described B, D, F layer, serve as the intennediate bond body of PP and PA two-layer (between AC layer, between CE layer, between EG layer), make their not delaminations, there is good bond effect, tack temperature wide ranges, high adhesion between PA and PP can be made, described binder resin is anhydride modified PP, buys the PX6002 produced in company of Leander Basel.
Described polypropylene elastomer (PP elastomer) has remarkable cold-resistant, tear-proof and anti-puncture performance, and good reliability and workability are commercial products, buy the propenyl elastomer VM3000 in company of U.S. of Weida.
Binary polypropylene (binary PP), the ternary polypropylene (ternary PP) of described G layer are commercially available prod, and binary PP is the R140M of SK Global Chemical Co., Ltd. of Korea S, the FC801 of domestic Shanghai Petrochemial Co Ltd, China Petrochemical Corp; Ternary PP is the 750R of carefree Chemical Co., Ltd. of Korea S, Singapore polyolefin FL7632.
The present invention adopts above technical scheme, the thickness of each layer of plastic packaging film is determined jointly by screw speed and hauling speed, between each layer of plastic packaging film of preparation, blending is good, two-phase laminated flow can not be produced during plastics sucking moulding, product mechanical strength is high, and polypropylene and steam paper seal effective, the high-temperature sterilization of resistance to 126 DEG C-130 DEG C, can be used for moise-heat sterilization, paper heat-sealing place not easily delamination after sterilization.
Detailed description of the invention
For a plastic packaging film for moise-heat sterilization, comprise 7 layers, be followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin;
C layer: HOPP and polypropylene elastomer, HOPP accounts for the 60-80% of C layer raw material gross weight, and polypropylene elastomer accounts for the 20-40% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin;
E layer: polyamide;
F layer: anhydride modified polypropylene binder resin;
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for the 30-50% of G layer raw material gross weight, and ternary polypropylene accounts for the 50-70% of G layer raw material gross weight;
The gross thickness that each layer thickness accounts for plastic packaging film is:
A layer 5-10%;
B layer 5-10%;
C layer 20-30%;
D layer 5-10%;
E layer 5-10%;
F layer 5-10%;
All the other are G layer, and gross thickness is 100%.
Further, described anhydride modified polypropylene binder resin is the PX6002 that company of Leander Basel produces, described polypropylene elastomer is the propenyl elastomer VM-3000 of company of U.S. of Weida, described polyamide is the copolymer of homopolymerization polyamide 6 or polyamide 6 and polyamide 66, and relative viscosity is 2-5.5.
A kind of preparation method of the plastic packaging film for moise-heat sterilization, comprise the following steps: 1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then each runner each layer component of spiral center die head is passed through in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming; 2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 10-60m/min, and the thickness of film is different, adopts different hauling speeds; 3) above-mentioned film is adopted water-cooled shaping; 4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.05-0.25mm;
Wherein, seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, the temperature of each layer fuselage and die head is as follows: A layer temperature 230-245 DEG C, B layer temperature 215-230 DEG C, C layer temperature 210-230 DEG C, D layer temperature 215-230 DEG C, E layer temperature 230-245 DEG C, F layer temperature 205-245 DEG C, G layer temperature 195-225 DEG C, die head temperature 220-245 DEG C;
According to each layer different-thickness, select different screw speeds, each layer screw speed is as follows: A layer rotating speed 15-50r/min, B layer rotating speed 15-50r/min, C layer rotating speed 20-60r/min, D layer rotating speed 10-50r/min, E layer rotating speed 10-50r/min, F layer rotating speed 10-50r/min, G layer rotating speed 20-60r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 15-40Mpa, B stressor layer 15-40Mpa, C stressor layer 20-50Mpa, D stressor layer 15-40Mpa, E stressor layer 15-40Mpa, F stressor layer 15-40Mpa, G stressor layer 20-50Mpa.
Embodiment 1
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.25mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 60% of C layer raw material gross weight, and polypropylene elastomer accounts for 40% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (homopolymerization polyamide 6);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 30% of G layer raw material gross weight, and ternary polypropylene accounts for 70% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, the temperature of each layer fuselage and die head is as follows: A layer temperature 245 DEG C, B layer temperature 230 DEG C, C layer temperature 230 DEG C, D layer temperature 230 DEG C, E layer temperature 245 DEG C, F layer temperature 245 DEG C, G layer temperature 225 DEG C, die head temperature 245 DEG C and die temperature 225 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 35r/min, B layer rotating speed 45r/min, C layer rotating speed 60r/min, D layer rotating speed 45r/min, E layer rotating speed 35r/min, F layer rotating speed 45r/min, G layer rotating speed 60r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 35Mpa, B stressor layer 40Mpa, C stressor layer 50Mpa, D stressor layer 40Mpa, E stressor layer 35Mpa, F stressor layer 40Mpa, G stressor layer 50Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 10m/min, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.25mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 10%;
B layer 10%;
C layer 30%;
D layer 10%;
E layer 10%;
F layer 10%;
G layer 20%.
Embodiment 2
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.05mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 80% of C layer raw material gross weight, and polypropylene elastomer accounts for 20% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (copolymer of polyamide 6 and polyamide 66);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 50% of G layer raw material gross weight, and ternary polypropylene accounts for 50% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, the temperature of each layer fuselage and die head is as follows: A layer temperature 235 DEG C, B layer temperature 215 DEG C, C layer temperature 210 DEG C, D layer temperature 215 DEG C, E layer temperature 235 DEG C, F layer temperature 205 DEG C, G layer temperature 195 DEG C, die head temperature 235 DEG C and die temperature 220 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 15r/min, B layer rotating speed 15r/min, C layer rotating speed 20r/min, D layer rotating speed 10r/min, E layer rotating speed 10r/min, F layer rotating speed 10r/min, G layer rotating speed 20r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 15Mpa, B stressor layer 15Mpa, C stressor layer 20Mpa, D stressor layer 15Mpa, E stressor layer 15Mpa, F stressor layer 15Mpa, G stressor layer 20Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 35m/min, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.05mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 10%;
B layer 8%;
C layer 30%;
D layer 8%;
E layer 10%;
F layer 10%;
G layer 24%.
Embodiment 3
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.15mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 70% of C layer raw material gross weight, and polypropylene elastomer accounts for 30% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (homopolymerization polyamide 6);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 40% of G layer raw material gross weight, and ternary polypropylene accounts for 60% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, the temperature of each layer fuselage and die head is as follows: A layer temperature 240 DEG C, B layer temperature 220 DEG C, C layer temperature 225 DEG C, D layer temperature 220 DEG C, E layer temperature 240 DEG C, F layer temperature 220 DEG C, G layer temperature 215 DEG C, die head temperature 240 DEG C and die temperature 220 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 30r/min, B layer rotating speed 30r/min, C layer rotating speed 40r/min, D layer rotating speed 35r/min, E layer rotating speed 35r/min, F layer rotating speed 35r/min, G layer rotating speed 40r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 25Mpa, B stressor layer 25Mpa, C stressor layer 35Mpa, D stressor layer 25Mpa, E stressor layer 25Mpa, F stressor layer 25Mpa, G stressor layer 35Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 14m/min, adopts different hauling speeds, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.15mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 5%;
B layer 5%;
C layer 20%;
D layer 10%;
E layer 10%;
F layer 10%;
All the other are G layer, and each layer gross thickness is 100%.
Embodiment 4
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.10mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 65% of C layer raw material gross weight, and polypropylene elastomer accounts for 35% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (copolymer of polyamide 6 and polyamide 66);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 35% of G layer raw material gross weight, and ternary polypropylene accounts for 65% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, the temperature of each layer fuselage and die head is as follows: A layer temperature 235 DEG C, B layer temperature 220 DEG C, C layer temperature 220 DEG C, D layer temperature 220 DEG C, E layer temperature 235 DEG C, F layer temperature 215 DEG C, G layer temperature 210 DEG C, die head temperature 225 DEG C and die temperature 220 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 20r/min, B layer rotating speed 20r/min, C layer rotating speed 25r/min, D layer rotating speed 20r/min, E layer rotating speed 15r/min, F layer rotating speed 15r/min, G layer rotating speed 25r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 25Mpa, B stressor layer 25Mpa, C stressor layer 25Mpa, D stressor layer 25Mpa, E stressor layer 20Mpa, F stressor layer 20Mpa, G stressor layer 30Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 22m/min, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.10mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 10%;
B layer 10%;
C layer 30%;
D layer 5%;
E layer 5%;
F layer 5%;
All the other are G layer, and each layer gross thickness is 100%.
Embodiment 5
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.25mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 60% of C layer raw material gross weight, and polypropylene elastomer accounts for 40% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (homopolymerization polyamide 6);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 30% of G layer raw material gross weight, and ternary polypropylene accounts for 70% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, and the temperature of each layer fuselage and die head is as follows: A layer temperature 245 DEG C, B layer temperature 230 DEG C, C layer temperature 230 DEG C, D layer temperature 230 DEG C, E layer temperature 245 DEG C, F layer temperature 245 DEG C, G layer temperature 225 DEG C, die head temperature 245 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 50r/min, B layer rotating speed 50r/min, C layer rotating speed 60r/min, D layer rotating speed 50r/min, E layer rotating speed 50r/min, F layer rotating speed 50r/min, G layer rotating speed 60r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 40Mpa, B stressor layer 40Mpa, C stressor layer 50Mpa, D stressor layer 40Mpa, E stressor layer 40Mpa, F stressor layer 40Mpa, G stressor layer 50Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 12m/min, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.25mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 10%;
B layer 10%;
C layer 30%;
D layer 10%;
E layer 10%;
F layer 10%;
G layer 20%.
Embodiment 6
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.05mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 80% of C layer raw material gross weight, and polypropylene elastomer accounts for 20% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (copolymer of polyamide 6 and polyamide 66);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 50% of G layer raw material gross weight, and ternary polypropylene accounts for 50% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, and the temperature of each layer fuselage and die head is as follows: A layer temperature 230 DEG C, B layer temperature 215 DEG C, C layer temperature 210 DEG C, D layer temperature 215 DEG C, E layer temperature 230 DEG C, F layer temperature 205 DEG C, G layer temperature 195 DEG C, die head temperature 220 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 15r/min, B layer rotating speed 15r/min, C layer rotating speed 20r/min, D layer rotating speed 10r/min, E layer rotating speed 10r/min, F layer rotating speed 10r/min, G layer rotating speed 20r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 15Mpa, B stressor layer 15Mpa, C stressor layer 20Mpa, D stressor layer 15Mpa, E stressor layer 15Mpa, F stressor layer 15Mpa, G stressor layer 20Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 40m/min, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.05mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 10%;
B layer 8%;
C layer 30%;
D layer 8%;
E layer 10%;
F layer 10%;
G layer 24%.
Embodiment 7
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.15mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 70% of C layer raw material gross weight, and polypropylene elastomer accounts for 30% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (homopolymerization polyamide 6);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 40% of G layer raw material gross weight, and ternary polypropylene accounts for 60% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, and the temperature of each layer fuselage and die head is as follows: A layer temperature 235 DEG C, B layer temperature 220 DEG C, C layer temperature 220 DEG C, D layer temperature 220 DEG C, E layer temperature 235 DEG C, F layer temperature 225 DEG C, G layer temperature 210 DEG C, die head temperature 230 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 30r/min, B layer rotating speed 30r/min, C layer rotating speed 40r/min, D layer rotating speed 35r/min, E layer rotating speed 35r/min, F layer rotating speed 35r/min, G layer rotating speed 40r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 25Mpa, B stressor layer 25Mpa, C stressor layer 35Mpa, D stressor layer 25Mpa, E stressor layer 25Mpa, F stressor layer 25Mpa, G stressor layer 35Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 16m/min, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.15mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 5%;
B layer 5%;
C layer 20%;
D layer 10%;
E layer 10%;
F layer 10%;
All the other are G layer, and each layer gross thickness is 100%.
Embodiment 8
Preparation gross thickness is the plastic packaging film being applicable to moise-heat sterilization of 0.10mm, and it comprises 7 layers, is followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, and the thickness of each layer is determined jointly by screw speed and hauling speed, and each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin (PX6002);
C layer: HOPP and polypropylene elastomer (VM-3000), HOPP accounts for 65% of C layer raw material gross weight, and polypropylene elastomer accounts for 35% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin (PX6002);
E layer: polyamide (copolymer of polyamide 6 and polyamide 66);
F layer: anhydride modified polypropylene binder resin (PX6002);
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for 35% of G layer raw material gross weight, and ternary polypropylene accounts for 65% of G layer raw material gross weight;
The preparation method of described plastic packaging film, comprises the following steps:
1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then pass through each runner each layer component of spiral center die head in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming;
Seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, and the temperature of each layer fuselage and die head is as follows: A layer temperature 235 DEG C, B layer temperature 220 DEG C, C layer temperature 220 DEG C, D layer temperature 220 DEG C, E layer temperature 235 DEG C, F layer temperature 215 DEG C, G layer temperature 210 DEG C, die head temperature 225 DEG C;
Select different screw speeds, control the thickness of each layer, each layer screw speed is as follows: A layer rotating speed 20r/min, B layer rotating speed 20r/min, C layer rotating speed 25r/min, D layer rotating speed 20r/min, E layer rotating speed 20r/min, F layer rotating speed 20r/min, G layer rotating speed 25r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 20Mpa, B stressor layer 20Mpa, C stressor layer 25Mpa, D stressor layer 25Mpa, E stressor layer 25Mpa, F stressor layer 25Mpa, G stressor layer 30Mpa;
2) when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 25m/min, controls the thickness of film;
3) above-mentioned film is adopted water-cooled shaping;
4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain the described plastic packaging film for moise-heat sterilization, its gross thickness is 0.10mm;
The gross thickness being accounted for plastic packaging film by each layer thickness of screw speed and hauling speed co-controlling is:
A layer 10%;
B layer 10%;
C layer 30%;
D layer 5%;
E layer 5%;
F layer 5%;
All the other are G layer, and each layer gross thickness is 100%.
Wherein, embodiment 1-4 products obtained therefrom detection data are as shown in table 1:
Table 1
From above form, the plastic packaging film adopting the inventive method to prepare is transparent airtight, and have good physical and mechanical properties, the high temperature that plastic packaging film is resistance to 126 DEG C-130 DEG C, can be used for moise-heat sterilization.
Claims (6)
1. for a plastic packaging film for moise-heat sterilization, it is characterized in that: it comprises 7 layers, be followed successively by A layer, B layer, C layer, D layer, E layer, F layer and G layer, each layer raw material is:
A layer: polyamide 6;
B layer: anhydride modified polypropylene binder resin;
C layer: HOPP and polypropylene elastomer, HOPP accounts for the 60-80% of C layer raw material gross weight, and polypropylene elastomer accounts for the 20-40% of C layer raw material gross weight;
D layer: anhydride modified polypropylene binder resin;
E layer: polyamide;
F layer: anhydride modified polypropylene binder resin;
G layer: binary polypropylene and ternary polypropylene, binary polypropylene accounts for the 30-50% of G layer raw material gross weight, and ternary polypropylene accounts for the 50-70% of G layer raw material gross weight;
The gross thickness that each layer thickness accounts for plastic packaging film is:
A layer 5-10%;
B layer 5-10%;
C layer 20-30%;
D layer 5-10%;
E layer 5-10%;
F layer 5-10%;
All the other are G layer, and gross thickness is 100%.
2. a kind of plastic packaging film for moise-heat sterilization according to claim 1, is characterized in that: described anhydride modified polypropylene binder resin is binder resin PX6002.
3. a kind of plastic packaging film for moise-heat sterilization according to claim 1, is characterized in that: described polypropylene elastomer is propenyl elastomer VM-3000.
4. a kind of plastic packaging film for moise-heat sterilization according to claim 1, it is characterized in that: described polyamide is the copolymer of homopolymerization polyamide 6 or polyamide 6 and polyamide 66, relative viscosity is 2-5.5.
5. the preparation method of a kind of plastic packaging film for moise-heat sterilization as claimed in claim 1, it is characterized in that: it comprises the following steps: 1) each layer raw material is delivered to heating and melting in seven extruders of seven-layer co-extrusion blown film unit and become polymer melt, then each runner each layer component of spiral center die head is passed through in the stacked conjunction of the upper layer of mouth mould, composite membrane-forming; 2), when described polymer molten fluid goes out die head, obtained by seven-layer co-extrusion blown film unit inflation, redraw and be distracted into film, hauling speed is 10-60m/min; 3) above-mentioned film is adopted water-cooled shaping; 4) film surface of above-mentioned cooling and shaping is carried out sided corona treatment, then be rolled into film volume, through cutting, packing, obtain described a kind of plastic packaging film for moise-heat sterilization;
Wherein, seven-layer co-extrusion blown film unit all adopts single screw extrusion machine, the temperature of each layer fuselage and die head is as follows: A layer temperature 230-245 DEG C, B layer temperature 215-230 DEG C, C layer temperature 210-230 DEG C, D layer temperature 215-230 DEG C, E layer temperature 230-245 DEG C, F layer temperature 205-245 DEG C, G layer temperature 195-225 DEG C, die head temperature 220-245 DEG C;
Each layer screw speed is as follows: A layer rotating speed 15-50r/min, B layer rotating speed 15-50r/min, C layer rotating speed 20-60r/min, D layer rotating speed 10-50r/min, E layer rotating speed 10-50r/min, F layer rotating speed 10-50r/min, G layer rotating speed 20-60r/min;
Each layer extruder melt body pressure is as follows: A stressor layer 15-40Mpa, B stressor layer 15-40Mpa, C stressor layer 20-50Mpa, D stressor layer 15-40Mpa, E stressor layer 15-40Mpa, F stressor layer 15-40Mpa, G stressor layer 20-50Mpa.
6. the preparation method of a kind of plastic packaging film for moise-heat sterilization according to claim 5, is characterized in that: the gross thickness of the plastic packaging film that described step 4) obtains is 0.05-0.25mm.
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Address after: 350016 Changxin East Road, Changan investment zone, Fujian, No. 28 East Road, Patentee after: Fujian green sail medical new material Co., Ltd. Address before: 350016 Changxin East Road, Changan investment zone, Fujian, No. 28 East Road, Patentee before: Fuzhou Green Sail Package Material Co., Ltd. |
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Address after: No.28, Changxing East Road, Tingjiang Town, Mawei District, Fuzhou City, Fujian Province, 350015 (within the pilot Free Trade Zone) Patentee after: FUZHOU GREEN SAIL PACKAGE MATERIAL Co.,Ltd. Address before: 350016, No. 28, Changxin East Road, Mawei Changan investment zone, Fujian, Fuzhou Patentee before: FUJIAN GREEN SAIL ADVANCED MEDICAL MATERIAL Co.,Ltd. |