CN107351499A - Medical three-layer co-extruded polypropylene film and preparation method thereof - Google Patents

Medical three-layer co-extruded polypropylene film and preparation method thereof Download PDF

Info

Publication number
CN107351499A
CN107351499A CN201710583630.XA CN201710583630A CN107351499A CN 107351499 A CN107351499 A CN 107351499A CN 201710583630 A CN201710583630 A CN 201710583630A CN 107351499 A CN107351499 A CN 107351499A
Authority
CN
China
Prior art keywords
parts
polypropylene
temperature
layer
medical
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.)
Pending
Application number
CN201710583630.XA
Other languages
Chinese (zh)
Inventor
龙其成
吴新华
杨小帅
许团胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anqing Kang Mingna Packing Co Ltd
Original Assignee
Anqing Kang Mingna Packing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anqing Kang Mingna Packing Co Ltd filed Critical Anqing Kang Mingna Packing Co Ltd
Priority to CN201710583630.XA priority Critical patent/CN107351499A/en
Publication of CN107351499A publication Critical patent/CN107351499A/en
Pending legal-status Critical Current

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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/738—Thermoformability
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/80—Medical packaging
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Abstract

The invention discloses a kind of medical three-layer co-extruded polypropylene film, including internal layer, middle level and outer layer, outer layer to include 40 55 parts of polypropylene T3OS；Middle level includes 20 30 parts of polypropylene T3OS；Internal layer includes：15 20 parts of polypropylene, 13 parts of heat-sealing type anti-adhesion master batch, 0,723 10 15 parts of polypropylene, 6 10 parts of metallocene PEF, 7,042 25 parts of low density polyethylene (LDPE), 48 52 parts of polypropylene 800e.The invention also discloses the preparation method of above-mentioned medical three-layer co-extruded polypropylene film.The film, when doing pressuresteam sterilization experiment, does not occur adhesion phenomenon in 60 minutes, 135 degree by the rational design of formula；Production heat-sealing bag, valve bag, volume bag and during three-dimensional winding bag, when peeling off not occurring layering tears phenomenon；Meanwhile other each side physical properties of the film are all substantially improved.

Description

Medical three-layer co-extruded polypropylene film and preparation method thereof
Technical field
The present invention relates to processing film field, and in particular to medical three-layer co-extruded poly- the third of a kind of medical sterilization packaging product Alkene film and preparation method thereof.
Background technology
With the development of China's medical industry, medical film requires more and more higher.At present, the medical treatment of domestic market production is gone out Bacterium bag fills CPP and is carrying out pressuresteam sterilization（135 degree）, after 30 minutes, there is adhesion in medical sterilization packaging CPP.Therefore, exist Heat-sealing bag is made, valve bag, when rolling up bag, is easily layered when peeling off, tears phenomenon.
The content of the invention
It is an object of the invention to provide a kind of medical three-layer co-extruded polypropylene film, the film is doing pressuresteam sterilization During experiment, do not occur adhesion phenomenon within 60 minutes, 135 degree；When production heat-sealing bag, valve bag, volume bag and three-dimensional winding bag, peeling off When do not occur layering and tear phenomenon；Meanwhile other each side physical properties of the film are all substantially improved.
A kind of medical three-layer co-extruded polypropylene film of the present invention, including internal layer, middle level and outer layer, wherein：
Outer layer is made up according to parts by weight of following raw materials according：Polypropylene T3OS 40-55 parts；
Middle level is made up according to parts by weight of following raw materials according：Polypropylene T3OS 20-30 parts；
Internal layer is made up according to parts by weight of following raw materials according：Polypropylene 15-20 parts, heat-sealing type anti-adhesion master batch 1-3 parts, polypropylene 0723 10-15 parts, metallocene PEF 6-10 parts, the 2-5 parts of low density polyethylene (LDPE) 7042, polypropylene 800e 48-52 parts.
It is another object of the present invention to provide the preparation method of above-mentioned medical three-layer co-extruded polypropylene film, including such as Lower step：The raw material of said ratio is taken, carries out batch mixing, melting extrusion, slab, longitudinal stretching, cross directional stretch, traction trimming, receipts Volume, cutting, finished product, extrusion temperature is 190-260 DEG C in described melting extrusion, and die head temperature is 230-55 DEG C；Described casting Chilling roller and tank temperature are 25-50 DEG C during piece；Longitudinal preheating temperature is 116-145 in described longitudinal stretching process DEG C, longitudinal drawing temperature is 120-135 DEG C, and longitudinal setting temperature is 128-145 DEG C, and longitudinal stretching ratio is 4-6 times；Described horizontal stroke Into drawing process, horizontal preheating temperature is 160-175 DEG C, and transverse drawing temperature is 150-168 DEG C, and horizontal setting temperature is 160-170 DEG C, cross directional stretch ratio is 7-10 times.
The beneficial effects of the invention are as follows：
1st, by adding heat-sealing type anti-adhesion master batch, the starting heat-sealing temperature of heat-sealing material is reduced；
2nd, Low Temperature Thermal sealer of the invention is heat sealable in 85 degree of -95 degree；
Heating-up temperature reduces when the 2nd, sealing, and is advantageous to save；
3rd, because being sealed under low-temperature condition, Low Temperature Thermal sealer will not improve Low Temperature Thermal sealer product quality because of heat distortion.
Embodiment
Medical three-layer co-extruded polypropylene film of the present invention and preparation method thereof is done into one with reference to specific embodiment Walk explanation.
Embodiment 1：
Outer layer：40 parts of polypropylene T3OS；
Middle level：20 parts of polypropylene T3OS；
Internal layer：15 parts of polypropylene, 1 part of heat-sealing type anti-adhesion master batch, 0,723 1 parts of polypropylene, 6 parts of metallocene PEF, low-density The 2- parts of polyethylene 7042,48 parts of polypropylene 800e.
Take above-mentioned raw materials by batch mixing, melting extrusion, slab, longitudinal stretching, cross directional stretch, traction trimming, winding, then Finished product is cut, extrusion temperature is 190 DEG C in extrusion, and die head temperature is 248 DEG C, and chilling roller and tank temperature are during slab 32℃；Longitudinal preheating temperature is 116 DEG C, and longitudinal drawing temperature is 126 DEG C, and longitudinal setting temperature is 140 DEG C, and longitudinal stretching ratio is 4.9 again；Horizontal preheating temperature is 166 DEG C during the cross directional stretch, and transverse drawing temperature is 152 DEG C, horizontal setting temperature For 165 DEG C, cross directional stretch ratio is 9 times.
Embodiment 2：
Outer layer：50 parts of polypropylene T3OS；
Middle level：25 parts of polypropylene T3OS；
Internal layer：18 parts of polypropylene, 2 parts of heat-sealing type anti-adhesion master batch, 0,723 12 parts of polypropylene, 8 parts of metallocene PEF, low-density 7,042 3 parts of polyethylene, 50 parts of polypropylene 800e.
Take above-mentioned raw materials by batch mixing, melting extrusion, slab, longitudinal stretching, cross directional stretch, traction trimming, winding, then Finished product is cut, extrusion temperature is 220 DEG C in extrusion, and die head temperature is 248 DEG C, and chilling roller and tank temperature are during slab 32℃；Longitudinal preheating temperature is 120 DEG C, and longitudinal drawing temperature is 130 DEG C, and longitudinal setting temperature is 140 DEG C, and longitudinal stretching ratio is 4.9 again；Horizontal preheating temperature is 170 DEG C during the cross directional stretch, and transverse drawing temperature is 154 DEG C, horizontal setting temperature For 165 DEG C, cross directional stretch ratio is 9 times.
Embodiment 3：
Outer layer：55 parts of polypropylene T3OS；
Middle level into：30 parts of polypropylene T3OS；
Internal layer：20 parts of polypropylene, 3 parts of heat-sealing type anti-adhesion master batch, 0,723 15 parts of polypropylene, 10 parts of metallocene PEF, low-density 7,042 5 parts of polyethylene, 52 parts of polypropylene 800e.
Take above-mentioned raw materials by batch mixing, melting extrusion, slab, longitudinal stretching, cross directional stretch, traction trimming, winding, then Finished product is cut, extrusion temperature is 260 DEG C in extrusion, and die head temperature is 248 DEG C, and chilling roller and tank temperature are during slab 32℃；Longitudinal preheating temperature is 142 DEG C, and longitudinal drawing temperature is 135 DEG C, and longitudinal setting temperature is 140 DEG C, and longitudinal stretching ratio is 4.9 again；Horizontal preheating temperature is 174 DEG C during the cross directional stretch, and transverse drawing temperature is 155 DEG C, horizontal setting temperature For 165 DEG C, cross directional stretch ratio is 9 times.
Medical three-layer co-extruded polypropylene film in the various embodiments described above has following physical property by experiment：
a:Peeling force：≥3.5N
b:Pull-off force：≥50N
c:Fracture rises long rate：≥45%
d:Right-angle tearing rate：≥4.5N
e:Anti- Charpy impact energy：≥1.2j
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention；It is any ripe Know those skilled in the art, without departing from the scope of the technical proposal of the invention, all using above-mentioned prompting method and Technology contents make many possible changes and modifications to technical solution of the present invention, or are revised as the equivalence enforcement of equivalent variations Example.Therefore, every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to made for any of the above embodiments Any simple modification, equivalent substitution, equivalence changes and modification, still fall within the range of technical solution of the present invention protects.

Claims (2)

1. a kind of medical three-layer co-extruded polypropylene film, including internal layer, middle level and outer layer, wherein：
Outer layer is made up according to parts by weight of following raw materials according：Polypropylene T3OS 40-55 parts；
Middle level is made up according to parts by weight of following raw materials according：Polypropylene T3OS 20-30 parts；
Internal layer is made up according to parts by weight of following raw materials according：Polypropylene 15-20 parts, heat-sealing type anti-adhesion master batch 1-3 parts, polypropylene 0723 10-15 parts, metallocene PEF 6-10 parts, the 2-5 parts of low density polyethylene (LDPE) 7042, polypropylene 800e 48-52 parts.
2. a kind of preparation method of medical three-layer co-extruded polypropylene film as claimed in claim 1, comprises the following steps：Take Proportioning raw material is stated, carries out batch mixing, melting extrusion, slab, longitudinal stretching, cross directional stretch, traction trimming, winding, cutting, finished product, It is characterized in that：Extrusion temperature is 190-260 DEG C in described melting extrusion, and die head temperature is 230-255 DEG C；Described slab During chilling roller and tank temperature be 25-50 DEG C；Longitudinal preheating temperature is 116-145 in described longitudinal stretching process DEG C, longitudinal drawing temperature is 120-135 DEG C, and longitudinal setting temperature is 128-145 DEG C, and longitudinal stretching ratio is 4-6 times；Described horizontal stroke Into drawing process, horizontal preheating temperature is 160-175 DEG C, and transverse drawing temperature is 150-168 DEG C, and horizontal setting temperature is 160-170 DEG C, cross directional stretch ratio is 7-10 times.
CN201710583630.XA 2017-07-18 2017-07-18 Medical three-layer co-extruded polypropylene film and preparation method thereof Pending CN107351499A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710583630.XA CN107351499A (en) 2017-07-18 2017-07-18 Medical three-layer co-extruded polypropylene film and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710583630.XA CN107351499A (en) 2017-07-18 2017-07-18 Medical three-layer co-extruded polypropylene film and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107351499A true CN107351499A (en) 2017-11-17

Family

ID=60284236

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710583630.XA Pending CN107351499A (en) 2017-07-18 2017-07-18 Medical three-layer co-extruded polypropylene film and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107351499A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1409665A (en) * 1999-12-11 2003-04-09 弗雷泽纽斯卡比德国有限公司 Autoclavable PVC-free multilayer film to be especially used for packing liquid, medicinal products, method for producing same and use thereof
CN1919597A (en) * 2006-07-19 2007-02-28 唐新国 Cast polypropylene film with low heat-sealing temperature and high heat-sealing strength
CN102794961A (en) * 2012-08-28 2012-11-28 常州大学 Three-layer coextrusion film for infusion and preparation method of three-layer coextrusion film
CN103707601A (en) * 2013-12-06 2014-04-09 蚌埠天成包装材料有限公司 High-temperature-resistant boiling packaging film with three-layer structure
CN105856775A (en) * 2016-03-31 2016-08-17 湖北德威包装科技有限公司 Low-temperature, heat-sealing and inflation-resistant CPP aluminum-plated film and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1409665A (en) * 1999-12-11 2003-04-09 弗雷泽纽斯卡比德国有限公司 Autoclavable PVC-free multilayer film to be especially used for packing liquid, medicinal products, method for producing same and use thereof
CN1919597A (en) * 2006-07-19 2007-02-28 唐新国 Cast polypropylene film with low heat-sealing temperature and high heat-sealing strength
CN102794961A (en) * 2012-08-28 2012-11-28 常州大学 Three-layer coextrusion film for infusion and preparation method of three-layer coextrusion film
CN103707601A (en) * 2013-12-06 2014-04-09 蚌埠天成包装材料有限公司 High-temperature-resistant boiling packaging film with three-layer structure
CN105856775A (en) * 2016-03-31 2016-08-17 湖北德威包装科技有限公司 Low-temperature, heat-sealing and inflation-resistant CPP aluminum-plated film and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
江谷: "《复合软包装材料与工艺》", 28 February 2003, 江苏科学技术出版社 *

Similar Documents

Publication Publication Date Title
JP5956115B2 (en) Retort packaging material containing biaxially stretched polybutylene terephthalate film
CN103879112B (en) Plastic compound flexible packaging polyethylene film and blow moiding method thereof
CN105026281B (en) Preservative film
CN101306593A (en) Multilayer coextruding pyrocondensation film
CN103818083B (en) Pure PE three-layer plastic film, corner angle packing bag prepared therefrom and production method thereof
CN109082086A (en) A kind of preparation method of the high ventilated membrane of polylactic acid
CN102225646A (en) Multilayer coextrusion medical blister composite packaging film and preparation method thereof
CN103009751B (en) Biaxial stretching polypropylene high heat-seal film and manufacturing method thereof
CN103481621B (en) A kind of low-temperature polyethylene shrink film and film-blowing process thereof
CN204914804U (en) Medical blister pack membrane of low temperature heat -seal
CN107351499A (en) Medical three-layer co-extruded polypropylene film and preparation method thereof
CN105524333A (en) Polyethylene film with excellent heat sealing performance
CN104309237A (en) High-heat seal strength biaxial oriented polypropylene film and manufacturing method thereof
US20140309351A1 (en) Barrier properties of hdpe film
CN108943940A (en) High-barrier visible heavy packaging composite film and production method thereof
CN104844908A (en) Medical air-permeable and antibacterial microporous material and preparation method for same
CN112208178B (en) Polyolefin film for express bubble bag and preparation method thereof
CN104098829A (en) Water-vapor-permeable polyethylene film and preparation method thereof
CN105015023B (en) Eight blowing Bag Making Machines
CN107501680A (en) One kind punching PE heat shrink films
EP1360059B1 (en) Process for preparing a laminated, thermoformed film
CN110002102A (en) A kind of purposes of the production method of PE composite package film and products thereof
CN109648880A (en) Heat shrink films and its production method and application
US20140275302A1 (en) Polyethylene additive
CN107400283A (en) A kind of PE punching heat shrink films and its production technology

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171117

WD01 Invention patent application deemed withdrawn after publication