CN105235345B - Blister packaging film for steam sterilization and manufacturing method thereof - Google Patents
Blister packaging film for steam sterilization and manufacturing method thereof Download PDFInfo
- Publication number
- CN105235345B CN105235345B CN201510759358.7A CN201510759358A CN105235345B CN 105235345 B CN105235345 B CN 105235345B CN 201510759358 A CN201510759358 A CN 201510759358A CN 105235345 B CN105235345 B CN 105235345B
- Authority
- CN
- China
- Prior art keywords
- layer
- layers
- polypropylene
- temperature
- packaging film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Laminated Bodies (AREA)
- Wrappers (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, and in particular to for packing a kind of for vapor sterilization of medical dressing
Plastic packaging film and preparation method thereof.
Background technology
Medical blister packaging film is mainly used in the paper of disposable preforming sterile system and easily tears, moulds the Medical treatment device that modeling is easily torn
The packaging of tool articles for use.After now universal operating room is packed using plastic packaging film with medical device, have to before dispatching from the factory into
Row thoroughly sterilizes, and just can ensure that the life security of patient.For the sterilization of the medical device Jing after plastic packaging film packaging
Most common method is high temperature sterilize, i.e., in 126 DEG C of -130 DEG C of high temperature sterilizes 30 minutes, or with Penetration of ethylene oxide to thin film
The antibacterial remained on interior killing medical device.But common plastic packaging film is unable to bear the high temperature spent 100, and epoxy second more
Alkane cannot be also penetrated in thin film, and life of these equipment directly using meeting to patient bring very big hidden danger.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of plastic packaging film for vapor sterilization and
Its preparation method.
For achieving the above object, the present invention is employed the following technical solutions：
A kind of plastic packaging film for vapor sterilization, including 7 layers, it is followed successively by A layers, B layers, C layers, D layers, E layers, F layers and G
Layer, each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin；
C layers：HOPP and polypropylene elastomer, HOPP account for the 60-80% of C layer raw material gross weights, and poly- third
Alkene elastomer accounts for the 20-40% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin；
E layers：Polyamide；
F layers：Anhydride modified polypropylene binder resin；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 30-50% of G layer raw material gross weights, and ternary is gathered
Propylene accounts for the 50-70% of G layer raw material gross weights；
The gross thickness that each thickness degree 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%；
Remaining is G layers, and gross thickness is 100%.
Further, the anhydride modified polypropylene binder resin is the PX6002 of company of Leander Basel production.
Propylene based elastomeric VM-3000 of the polypropylene elastomer for company of U.S. of Weida.
The polyamide is the copolymer of homopolymerization polyamide 6 or polyamide 6 and polyamide 66, and relative viscosity is 2-
5.5, the physical and mechanical propertiess of thin film can be increased, to the temperature difference for improving thin film, the intensity of plastic uptake rear film is improved.
The preparation method of the plastic packaging film for vapor sterilization of the present invention, comprises the following steps：1) it is each layer is former
Heating during material is sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, then by spiral center die head
The each layer component of each runner close in the top layer stackup of mouth mold, composite membrane-forming；2) when the polymer molten fluid goes out die head, by
Inflation of seven-layer co-extrusion blown film unit is obtained, and redraws and is distracted into thin film, and hauling speed is 10-60m/min, the thickness of thin film
Difference, using different hauling speeds；3) above-mentioned thin film is adopted into water-cooled shaping；4) film surface of above-mentioned cooling and shaping is entered
Row sided corona treatment, then film roll is rolled into, Jing cuttings, packaging obtain a kind of described plastic packaging film for vapor sterilization；
Wherein, seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head 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, 220-245 DEG C of die head temperature；
Each thickness degree is different, and using 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 layers turn
Fast 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, the step 4) gross thickness of plastic packaging film that obtains is 0.05-0.25mm.
In the present invention, the binder resin of B, D, F layer, serve as PP and PA two-layers (between AC layers, between CE layers, EG
Layer between) intennediate bond body, make their not delaminations, with good bond effect, tack temperature wide ranges, PA and PP can be made
Between high adhesion, the binder resin be anhydride modified PP, buy in company of Leander Basel production PX6002.
, with the cold-resistant of brilliance, anti tear and puncture energy, good can for the polypropylene elastomer (PP elastomers)
By property and workability, it is commercial products, buys the propylene based elastomeric VM3000 in company of U.S. of Weida.
The binary polypropylene (binary PP) of the G layers, ternary polypropylene (ternary PP) are commercially available prod, and binary PP is Korea Spro
The R140M of SK Global Chemical Co., Ltd. of state, the FC801 of domestic Shanghai Petrochemial Co Ltd, China Petrochemical Corp；Ternary
750R, Singapore polyolefin FL7632 of the PP for carefree Chemical Co., Ltd. of Korea.
The present invention adopts above technical scheme, the thickness of each layer of plastic packaging film to be determined by screw speed and hauling speed jointly
Fixed, between each layer of plastic packaging film of preparation, blending is good, and two-phase laminated flow, product mechanical strength will not be produced during plastics sucking moulding
Height, polypropylene are good with steam paper heat-sealing effect, and resistance to 126 DEG C -130 DEG C of high-temperature sterilization can be used for vapor sterilization, paper after sterilization
Delamination is difficult at heat-sealing.
Specific embodiment
A kind of plastic packaging film for vapor sterilization, including 7 layers, it is followed successively by A layers, B layers, C layers, D layers, E layers, F layers and G
Layer, each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin；
C layers：HOPP and polypropylene elastomer, HOPP account for the 60-80% of C layer raw material gross weights, and poly- third
Alkene elastomer accounts for the 20-40% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin；
E layers：Polyamide；
F layers：Anhydride modified polypropylene binder resin；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 30-50% of G layer raw material gross weights, and ternary is gathered
Propylene accounts for the 50-70% of G layer raw material gross weights；
The gross thickness that each thickness degree 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%；
Remaining is G layers, and gross thickness is 100%.
Further, PX6002 of the anhydride modified polypropylene binder resin for the production of company of Leander Basel, institute
State the propylene based elastomeric VM-3000 that polypropylene elastomer is company of U.S.A of Weida, the polyamide for homopolymerization polyamide 6 or
The copolymer of polyamide 6 and polyamide 66, relative viscosity is 2-5.5.
A kind of preparation method of the plastic packaging film for vapor sterilization, comprises the following steps：1) each layer raw material is sent to
In seven extruders of seven-layer co-extrusion blown film unit heating be melt into polymer melt, then by spiral center die head each
The each layer component of runner is closed in the top layer stackup of mouth mold, composite membrane-forming；2) when the polymer molten fluid goes out die head, by seven layers altogether
Inflation of extrusion film unit is obtained, and redraws and is distracted into thin film, and hauling speed is 10-60m/min, and the thickness of thin film is different,
Using different hauling speeds；3) above-mentioned thin film is adopted into water-cooled shaping；4) film surface of above-mentioned cooling and shaping is carried out into electricity
It is dizzy to process, then film roll is rolled into, Jing cuttings, packaging obtain the described plastic packaging film for vapor sterilization, and its gross thickness is
0.05-0.25mm；
Wherein, seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head 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, 220-245 DEG C of die head temperature；
According to each layer different-thickness, different screw speeds are selected, 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
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.25mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
60%, polypropylene elastomer accounts for the 40% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (homopolymerization polyamide 6)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 30% of G layer raw material gross weights, ternary polypropylene
Account for the 70% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
245 DEG C, 230 DEG C of B layers temperature, 230 DEG C of C layers temperature, 230 DEG C of D layers temperature, 245 DEG C of E layers temperature, 245 DEG C of F layers temperature, G layer temperature
225 DEG C of 225 DEG C of degree, 245 DEG C of die head temperature and die temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 35r/min, B layers
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 layers turn
Fast 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 layers
40Mpa, E stressor layer 35Mpa, F stressor layer 40Mpa, G stressor layer 50Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 10m/min, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.25mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 10%；
B layers 10%；
C layers 30%；
D layers 10%；
E layers 10%；
F layers 10%；
G layers 20%.
Embodiment 2
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.05mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
80%, polypropylene elastomer accounts for the 20% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (copolymer of polyamide 6 and polyamide 66)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 50% of G layer raw material gross weights, ternary polypropylene
Account for the 50% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
235 DEG C, 215 DEG C of B layers temperature, 210 DEG C of C layers temperature, 215 DEG C of D layers temperature, 235 DEG C of E layers temperature, 205 DEG C of F layers temperature, G layer temperature
220 DEG C of 195 DEG C of degree, 235 DEG C of die head temperature and die temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 15r/min, B layers
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 layers turn
Fast 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 layers
15Mpa, E stressor layer 15Mpa, F stressor layer 15Mpa, G stressor layer 20Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 35m/min, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.05mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 10%；
B layers 8%；
C layers 30%；
D layers 8%；
E layers 10%；
F layers 10%；
G layers 24%.
Embodiment 3
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.15mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
70%, polypropylene elastomer accounts for the 30% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (homopolymerization polyamide 6)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 40% of G layer raw material gross weights, ternary polypropylene
Account for the 60% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
240 DEG C, 220 DEG C of B layers temperature, 225 DEG C of C layers temperature, 220 DEG C of D layers temperature, 240 DEG C of E layers temperature, 220 DEG C of F layers temperature, G layer temperature
220 DEG C of 215 DEG C of degree, 240 DEG C of die head temperature and die temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 30r/min, B layers
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 layers turn
Fast 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 layers
25Mpa, E stressor layer 25Mpa, F stressor layer 25Mpa, G stressor layer 35Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 14m/min, using different hauling speeds, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.15mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 5%；
B layers 5%；
C layers 20%；
D layers 10%；
E layers 10%；
F layers 10%；
Remaining is G layers, and each layer gross thickness is 100%.
Embodiment 4
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.10mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
65%, polypropylene elastomer accounts for the 35% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (copolymer of polyamide 6 and polyamide 66)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 35% of G layer raw material gross weights, ternary polypropylene
Account for the 65% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
235 DEG C, 220 DEG C of B layers temperature, 220 DEG C of C layers temperature, 220 DEG C of D layers temperature, 235 DEG C of E layers temperature, 215 DEG C of F layers temperature, G layer temperature
220 DEG C of 210 DEG C of degree, 225 DEG C of die head temperature and die temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 20r/min, B layers
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 layers turn
Fast 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 layers
25Mpa, E stressor layer 20Mpa, F stressor layer 20Mpa, G stressor layer 30Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 22m/min, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.10mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 10%；
B layers 10%；
C layers 30%；
D layers 5%；
E layers 5%；
F layers 5%；
Remaining is G layers, and each layer gross thickness is 100%.
Embodiment 5
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.25mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
60%, polypropylene elastomer accounts for the 40% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (homopolymerization polyamide 6)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 30% of G layer raw material gross weights, ternary polypropylene
Account for the 70% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
245 DEG C, 230 DEG C of B layers temperature, 230 DEG C of C layers temperature, 230 DEG C of D layers temperature, 245 DEG C of E layers temperature, 245 DEG C of F layers temperature, G layer temperature
225 DEG C of degree, 245 DEG C of die head temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 50r/min, B layers
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 layers turn
Fast 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 layers
40Mpa, E stressor layer 40Mpa, F stressor layer 40Mpa, G stressor layer 50Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 12m/min, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.25mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 10%；
B layers 10%；
C layers 30%；
D layers 10%；
E layers 10%；
F layers 10%；
G layers 20%.
Embodiment 6
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.05mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
80%, polypropylene elastomer accounts for the 20% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (copolymer of polyamide 6 and polyamide 66)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 50% of G layer raw material gross weights, ternary polypropylene
Account for the 50% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
230 DEG C, 215 DEG C of B layers temperature, 210 DEG C of C layers temperature, 215 DEG C of D layers temperature, 230 DEG C of E layers temperature, 205 DEG C of F layers temperature, G layer temperature
195 DEG C of degree, 220 DEG C of die head temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 15r/min, B layers
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 layers turn
Fast 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 layers
15Mpa, E stressor layer 15Mpa, F stressor layer 15Mpa, G stressor layer 20Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 40m/min, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.05mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 10%；
B layers 8%；
C layers 30%；
D layers 8%；
E layers 10%；
F layers 10%；
G layers 24%.
Embodiment 7
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.15mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
70%, polypropylene elastomer accounts for the 30% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (homopolymerization polyamide 6)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 40% of G layer raw material gross weights, ternary polypropylene
Account for the 60% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
235 DEG C, 220 DEG C of B layers temperature, 220 DEG C of C layers temperature, 220 DEG C of D layers temperature, 235 DEG C of E layers temperature, 225 DEG C of F layers temperature, G layer temperature
210 DEG C of degree, 230 DEG C of die head temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 30r/min, B layers
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 layers turn
Fast 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 layers
25Mpa, E stressor layer 25Mpa, F stressor layer 25Mpa, G stressor layer 35Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 16m/min, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.15mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 5%；
B layers 5%；
C layers 20%；
D layers 10%；
E layers 10%；
F layers 10%；
Remaining is G layers, and each layer gross thickness is 100%.
Embodiment 8
Plastic packaging film suitable for vapor sterilization of the gross thickness for 0.10mm is prepared, which includes 7 layers, is followed successively by A layers, B
Layer, C layers, D layers, E layers, F layers and G layers, the thickness of each layer are together decided on by screw speed and hauling speed, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin (PX6002)；
C layers：HOPP and polypropylene elastomer (VM-3000), HOPP account for C layer raw material gross weights
65%, polypropylene elastomer accounts for the 35% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin (PX6002)；
E layers：Polyamide (copolymer of polyamide 6 and polyamide 66)；
F layers：Anhydride modified polypropylene binder resin (PX6002)；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 35% of G layer raw material gross weights, ternary polypropylene
Account for the 65% of G layer raw material gross weights；
The preparation method of the plastic packaging film, comprises the following steps：
1) heating during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit is melt into polymer melt, so
Top layer stackup by each layer component of each runner of spiral center die head in mouth mold is closed afterwards, composite membrane-forming；
Seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
235 DEG C, 220 DEG C of B layers temperature, 220 DEG C of C layers temperature, 220 DEG C of D layers temperature, 235 DEG C of E layers temperature, 215 DEG C of F layers temperature, G layer temperature
210 DEG C of degree, 225 DEG C of die head temperature；
Different screw speeds are selected, the thickness of each layer is controlled, each layer screw speed is as follows：A layer rotating speed 20r/min, B layers
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 layers turn
Fast 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 layers
25Mpa, E stressor layer 25Mpa, F stressor layer 25Mpa, G stressor layer 30Mpa；
2), when the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, redraws traction
Into thin film, hauling speed is 25m/min, controls the thickness of thin film；
3) above-mentioned thin film is adopted into water-cooled shaping；
4) film surface of above-mentioned cooling and shaping is carried out into sided corona treatment, then is rolled into film roll, Jing cuttings, packaging obtain institute
The plastic packaging film for vapor sterilization stated, its gross thickness are 0.10mm；
The gross thickness that plastic packaging film is accounted for by each thickness degree of screw speed and hauling speed co- controlling is：
A layers 10%；
B layers 10%；
C layers 30%；
D layers 5%；
E layers 5%；
F layers 5%；
Remaining is G layers, and each layer gross thickness is 100%.
Wherein, embodiment 1-4 products obtained therefrom detection data is as shown in table 1：
Table 1
From above table, the plastic packaging film prepared using the inventive method is transparent airtight, with good thing
Reason mechanical performance, the high temperature that resistance to 126 DEG C -130 DEG C of plastic packaging film can be used for vapor sterilization.
Claims (5)
1. a kind of preparation method of the plastic packaging film for vapor sterilization, it is characterised in that：The plastic packaging film includes 7
Layer, is followed successively by A layers, B layers, C layers, D layers, E layers, F layers and G layers, and each layer raw material is：
A layers：Polyamide 6；
B layers：Anhydride modified polypropylene binder resin；
C layers：HOPP and polypropylene elastomer, HOPP account for the 60-80% of C layer raw material gross weights, polypropylene elasticity
Body accounts for the 20-40% of C layer raw material gross weights；
D layers：Anhydride modified polypropylene binder resin；
E layers：Polyamide；
F layers：Anhydride modified polypropylene binder resin；
G layers：Binary polypropylene and ternary polypropylene, binary polypropylene account for the 30-50% of G layer raw material gross weights, and ternary polypropylene is accounted for
The 50-70% of G layer raw material gross weights；
The gross thickness that each thickness degree 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%；
Remaining is G layers, and gross thickness is 100%；
The preparation method is comprised the following steps：1）Add during each layer raw material to be sent to seven extruders of seven-layer co-extrusion blown film unit
Heat fusing into polymer melt, then by each layer component of each runner of spiral center die head mouth mold top layer stackup
Close, composite membrane-forming；2）When the polymer molten fluid goes out die head, it is obtained by inflation of seven-layer co-extrusion blown film unit, is redrawn
Thin film is distracted into, hauling speed is 10-60m/min；3）Above-mentioned thin film is adopted into water-cooled shaping；4）By the thin of above-mentioned cooling and shaping
Film surface carries out sided corona treatment, then is rolled into film roll, Jing cuttings, packaging, obtains a kind of described plastic uptake bag for vapor sterilization
Dress film；
Wherein, seven-layer co-extrusion blown film unit all adopts the temperature of single screw extrusion machine, each layer fuselage and die head as follows：A layer temperature
230-245 DEG C of degree, 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, 220-245 DEG C of die head temperature；
Each layer screw speed is as follows：A layer rotating speed 15-50r/min, B layer rotating speed 15-50 r/min, C layer rotating speed 20-60 r/min,
D layer rotating speed 10-50 r/min, E layer rotating speed 10-50 r/min, F layer rotating speed 10-50 r/min, G layer rotating speed 20-60 r/min；
Each layer extruder melt body pressure is as follows：15-40Mpa of A stressor layers, 15-40Mpa of B stressor layers, C stressor layers 20-
15-40Mpa of 50Mpa, D stressor layer, 15-40Mpa of E stressor layers, 15-40Mpa of F stressor layers, G stressor layers 20-
50Mpa。
2. the preparation method of a kind of plastic packaging film for vapor sterilization according to claim 1, it is characterised in that：Institute
Anhydride modified polypropylene binder resin is stated for binder resin PX6002.
3. the preparation method of a kind of plastic packaging film for vapor sterilization according to claim 1, it is characterised in that：Institute
Polypropylene elastomer is stated for propylene-based elastomeric VM-3000.
4. the preparation method of a kind of plastic packaging film for vapor sterilization according to claim 1, it is characterised in that：Institute
The copolymer that polyamide is homopolymerization polyamide 6 or polyamide 6 and polyamide 66 is stated, relative viscosity is 2-5.5.
5. the preparation method of a kind of plastic packaging film for vapor sterilization according to claim 1, it is characterised in that：Institute
State step 4）The gross thickness of the plastic packaging film for obtaining is 0.05-0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510759358.7A CN105235345B (en) | 2015-11-09 | 2015-11-09 | Blister packaging film for steam sterilization and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510759358.7A CN105235345B (en) | 2015-11-09 | 2015-11-09 | Blister packaging film for steam sterilization and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105235345A CN105235345A (en) | 2016-01-13 |
| CN105235345B true CN105235345B (en) | 2017-04-19 |
Family
ID=55033280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510759358.7A Active CN105235345B (en) | 2015-11-09 | 2015-11-09 | Blister packaging film for steam sterilization and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105235345B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112793273B (en) * | 2021-01-26 | 2022-05-20 | 丹东鑫马高科技塑料包装有限公司 | Transparent polypropylene material, preparation method and application thereof |
| CN115805698B (en) * | 2023-01-19 | 2023-04-28 | 广东中兴塑料纸类印刷有限公司 | Tear-resistant antibacterial fresh-keeping packaging film blowing process, device and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6224956B1 (en) * | 1990-05-17 | 2001-05-01 | Cryovac, Inc. | Breathable abuse resistant film for packaging cheese |
| CN101913279A (en) * | 2010-07-08 | 2010-12-15 | 福建凯达印务有限公司 | Toughening type three-layer coextru-laminated film and preparation method thereof |
| CN102225646A (en) * | 2011-05-12 | 2011-10-26 | 福州绿帆包装材料有限公司 | Multilayer coextrusion medical blister composite packaging film and preparation method thereof |
| CN203004469U (en) * | 2012-12-21 | 2013-06-19 | 苏州海顺包装材料有限公司 | Blister film for packaging medical equipment |
| CN103182821A (en) * | 2013-03-10 | 2013-07-03 | 湖北慧狮塑业股份有限公司 | Modified polyamide composite membrane and preparation method thereof |
| CN103331970A (en) * | 2013-06-09 | 2013-10-02 | 南通环球塑料工程有限公司 | Multilayer co-extrusion two-way stretch thermophilic digestion obstructive nylon plastic casing membrane and preparation method thereof |
-
2015
- 2015-11-09 CN CN201510759358.7A patent/CN105235345B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6224956B1 (en) * | 1990-05-17 | 2001-05-01 | Cryovac, Inc. | Breathable abuse resistant film for packaging cheese |
| CN101913279A (en) * | 2010-07-08 | 2010-12-15 | 福建凯达印务有限公司 | Toughening type three-layer coextru-laminated film and preparation method thereof |
| CN102225646A (en) * | 2011-05-12 | 2011-10-26 | 福州绿帆包装材料有限公司 | Multilayer coextrusion medical blister composite packaging film and preparation method thereof |
| CN203004469U (en) * | 2012-12-21 | 2013-06-19 | 苏州海顺包装材料有限公司 | Blister film for packaging medical equipment |
| CN103182821A (en) * | 2013-03-10 | 2013-07-03 | 湖北慧狮塑业股份有限公司 | Modified polyamide composite membrane and preparation method thereof |
| CN103331970A (en) * | 2013-06-09 | 2013-10-02 | 南通环球塑料工程有限公司 | Multilayer co-extrusion two-way stretch thermophilic digestion obstructive nylon plastic casing membrane and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105235345A (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104589749B (en) | High-barrier Biaxial tension polyethylene film and preparation method thereof | |
| CN103029388B (en) | Three-layer coextrusion heavy packaging membrane and fabrication method thereof | |
| CN102225646A (en) | Multilayer coextrusion medical blister composite packaging film and preparation method thereof | |
| CN106739356B (en) | A kind of multi-layer co-extruded shrink film and production technology | |
| CN104527189B (en) | A kind of online double-layer composite plastic blowing diaphragm and manufacture method thereof | |
| CN102248735B (en) | Polyolefin film used for packaging and preparation method thereof | |
| CN107696623B (en) | Heat shrinkage film suitable for automatic quick packaging of production line | |
| CN102225644B (en) | Heat sealing film and preparation method thereof | |
| CN108189506A (en) | PE films and preparation method thereof are easily taken off in heat-sealing repeatedly | |
| CN102781666A (en) | Heat-shrinkable multi-layer film for deep-draw forming, and process for production thereof | |
| CN102476493A (en) | Easy-split bi-directional stretching polyethylene film | |
| KR20200077666A (en) | Film for packaging food | |
| CN102173149A (en) | Antibacterial composite film used for vacuum packing of household articles and preparation method thereof | |
| CN105235345B (en) | Blister packaging film for steam sterilization and manufacturing method thereof | |
| CN111055565A (en) | Low-temperature-resistant outer-bag multilayer co-extrusion film for cooking sterilization and preparation method thereof | |
| CN107082927A (en) | A kind of macromolecule member material and its preparation method and application | |
| CN110901192A (en) | Multilayer co-extrusion medical plastic composite packaging film | |
| CN105216418B (en) | A kind of plastic packaging film and preparation method thereof for gamma-rays disinfection | |
| CN110964452B (en) | Deep-drawing-resistant PE self-adhesion stainless steel protective film | |
| CN201587630U (en) | Extinction blocking five-layer coextruded composite film | |
| CN105172291A (en) | Polyethylene film with easy straight-line tearing and preparation method for polyethylene film | |
| JP2023044724A (en) | Biaxially-oriented polyethylene thin films for thermoforming, method for producing the same, method for using the same, thermoforming method, and products | |
| CN102380991B (en) | Plastic packaging film and preparation method thereof | |
| CN102452205A (en) | Straight-line easily-torn thin film | |
| CN105196679B (en) | Multilayer plastic uptake deep forming packaging film material and production technology thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
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. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
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. |