CN105524333A - Polyethylene film with excellent heat sealing performance - Google Patents
Polyethylene film with excellent heat sealing performance Download PDFInfo
- Publication number
- CN105524333A CN105524333A CN201610079426.XA CN201610079426A CN105524333A CN 105524333 A CN105524333 A CN 105524333A CN 201610079426 A CN201610079426 A CN 201610079426A CN 105524333 A CN105524333 A CN 105524333A
- Authority
- CN
- China
- Prior art keywords
- polyethylene film
- heat sealing
- heat
- sealing
- polyethylene
- 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
Links
Classifications
-
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- 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
- C08L2203/162—Applications used for films sealable films
-
- 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
- C08L2207/062—HDPE
-
- 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)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a polyethylene film with excellent heat sealing performance. The polyethylene film comprises components in parts by weight as follows: 45-65 parts of polyethylene resin, 15-30 parts of EVA (ethylene vinyl acetate copolymer) and 3-5 parts of an additive. According to a process for heat sealing of the polyethylene film, the heat sealing temperature is 85-100 DEG C, the heat sealing time is 1.5-2 s, and the heat sealing pressure is 0.2-0.3 MPa. The polyethylene film is low in heat sealing temperature and high in heat sealing strength, and the phenomena of wrinkle forming or seal damage due to high heat sealing temperature in the prior art can be prevented.
Description
Technical field
The present invention relates to a kind of drug packing material field, be specifically related to a kind of polyethylene film with good heat sealability.
Background technology
At present, plastics are widely used in the market, wherein in plastic prod, occupy ratio increasing in plastic wrapping, particularly at medicine, the fields such as chemical industry, and polyethylene film is nontoxic due to it, the reasons such as safety are widely used in pharmaceutical packing, PE(polyethylene by common) plastic packaging bag made of film all completes by big machinery, and due to the characteristic of existing PE film itself, usually can there is following shortcoming when sealing in packing bag: heat-sealing temperature is high, usually 115-125 DEG C will be reached, during sealing, temperature is high, conduction is slow, the then shape of malleable film, film thickness increases, easily there is fold, destroy sealing, and then there is the phenomenon of " false envelope ", reduce conforming product rate, affect the quality of product.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of polyethylene film with good heat sealability.
The present invention is achieved through the following technical solutions:
There is a polyethylene film for good heat sealability, comprise the component of following weight part:
Polyvinyl resin: 45-65 weight part;
EVA(ethylene-vinyl acetate copolymer): 15-30 weight part;
Additive: 3-5 weight part;
And the technique of this polyethylene film when sealing is: heat-sealing temperature is 85-100 DEG C, and the heat-sealing time is 1.5-2s, and heat-sealing pressure is 0.2-0.35MPa.
Wherein, described polyvinyl resin can be selected from least one in following material: linear low density polyethylene (LLDPE), Low Density Polyethylene (LDPE), high density polyethylene(HDPE) (HDPE).
Wherein, described PE(polyethylene) resin preferably 53 weight parts.
Wherein, described EVA preferably 17 weight parts.
Wherein, described additive is selected from least one in following material: amine hydroxybenzene, erucicamide, kemanide S, silicon-dioxide.Described additive specific surface area is high, and resistance to blocking is strong, adds in film, when making film make packaging, is more easily lifted after sealing, improve property easy to use.
The preparation method of polyethylene film of the present invention there is no and specifies, those skilled in the art can select suitable method as the case may be, as adopted inflation film manufacturing machine, by blown film after the polyvinyl resin of described ratio, EVA and additive melting, polyethylene film of the present invention can be obtained.Wherein, melt temperature is 120-125 DEG C.
Wherein, optimal process during heat-sealing: heat-sealing temperature is 85 DEG C, the heat-sealing time is 1.5s, and heat-sealing pressure is 0.25MPa.
The present invention compared with prior art, has following advantage and beneficial effect:
Optimize hot sealing process, during sealing, temperature is high, conduction is slow, then the change film shape easily avoiding producing because heat-sealing temperature is high, film thickness increase and then easily occur fold, destroy the generation of the phenomenons such as sealing, raising heat sealability.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
PE:45 weight part
EVA:15 weight part
Amine hydroxybenzene: 2.5 weight parts
Silicon-dioxide: 1 weight part
Heat-sealing temperature (DEG C): 90
Heat-sealing time (s): 1.7
Heat-sealing pressure (MPa): 0.35.
Embodiment 2
PE:53 weight part
EVA:17 weight part
Silicon-dioxide: 3 weight parts
Heat-sealing temperature (DEG C): 85
Heat-sealing time (s): 1.5
Heat-sealing pressure (MPa): 0.25.
Embodiment 3
PE:65 weight part
EVA:30 weight part
Amine hydroxybenzene: 5 weight parts
Heat-sealing temperature (DEG C): 100
Heat-sealing time (s): 2
Heat-sealing pressure (MPa): 0.2.
Add melting blowfilm shaping in inflation film manufacturing machine by after raw material blending each in embodiment 1-3, wherein melt temperature is 120-125 DEG C, can obtain polyethylene film.
Get above-mentioned obtained polyethylene film, make two pieces of polyethylene films of 100mm × 100mm size, seal under the hot sealing process condition shown in embodiment 1-3 after stacked, and test its heat seal strength, result is as follows:
The heat seal strength (N/15mm) of embodiment 1 is 36;
The heat seal strength (N/15mm) of embodiment 2 is 47;
The heat seal strength (N/15mm) of embodiment 3 is 31.
From above embodiment, can find out, adopt polyethylene film of the present invention, heat-sealing temperature is low, and heat seal strength is high.Especially the polyethylene film heat sealability shown in embodiment 2 is best.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. there is a polyethylene film for good heat sealability, it is characterized in that, comprise the component of following weight part:
Polyvinyl resin: 45-65 weight part;
EVA:15-30 weight part;
Additive: 3-5 weight part;
And the technique of this polyethylene film when sealing is: heat-sealing temperature is 85-100 DEG C, and the heat-sealing time is 1.5-2s, and heat-sealing pressure is 0.2-0.35MPa.
2. the polyethylene film with good heat sealability according to claim 1, is characterized in that, described polyvinyl resin is selected from least one in following material: linear low density polyethylene, Low Density Polyethylene, high density polyethylene(HDPE).
3. the polyethylene film with good heat sealability according to claim 1, is characterized in that, described polyvinyl resin is 53 weight parts.
4. the polyethylene film with good heat sealability according to claim 1, is characterized in that, described EVA is 17 weight parts.
5. the polyethylene film with good heat sealability according to claim 1, is characterized in that, described additive is selected from least one in following material: amine hydroxybenzene, erucicamide, kemanide S, silicon-dioxide.
6. the polyethylene film with good heat sealability according to claim 1, is characterized in that, heat-sealing temperature is 85 DEG C, and the heat-sealing time is 1.5s, and heat-sealing pressure is 0.25MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610079426.XA CN105524333A (en) | 2016-02-04 | 2016-02-04 | Polyethylene film with excellent heat sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610079426.XA CN105524333A (en) | 2016-02-04 | 2016-02-04 | Polyethylene film with excellent heat sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105524333A true CN105524333A (en) | 2016-04-27 |
Family
ID=55766877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610079426.XA Pending CN105524333A (en) | 2016-02-04 | 2016-02-04 | Polyethylene film with excellent heat sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105524333A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106243441A (en) * | 2016-07-29 | 2016-12-21 | 无锡市华泰医药包装有限公司 | Medicine blister package aluminium foil |
| CN108841022A (en) * | 2018-04-18 | 2018-11-20 | 句容沣润塑料制品有限公司 | The preparation method of plastic fresh-keeping membrane |
| CN114292456A (en) * | 2021-12-28 | 2022-04-08 | 杭州欧信包装科技有限公司 | Material with high heat-sealing strength applied to air column bag air valve |
| CN114953674A (en) * | 2022-05-07 | 2022-08-30 | 新乐华宝医疗用品有限公司 | Disposable medical liquid-storing bag film |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311966A (en) * | 2014-10-31 | 2015-01-28 | 四川汇利实业有限公司 | Anti-pollution low-temperature heat-sealing polyethylene film easy to tear off |
-
2016
- 2016-02-04 CN CN201610079426.XA patent/CN105524333A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311966A (en) * | 2014-10-31 | 2015-01-28 | 四川汇利实业有限公司 | Anti-pollution low-temperature heat-sealing polyethylene film easy to tear off |
Non-Patent Citations (1)
| Title |
|---|
| 伍秋涛编著: "软包装应用", 《软包装实用技术查询》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106243441A (en) * | 2016-07-29 | 2016-12-21 | 无锡市华泰医药包装有限公司 | Medicine blister package aluminium foil |
| CN108841022A (en) * | 2018-04-18 | 2018-11-20 | 句容沣润塑料制品有限公司 | The preparation method of plastic fresh-keeping membrane |
| CN114292456A (en) * | 2021-12-28 | 2022-04-08 | 杭州欧信包装科技有限公司 | Material with high heat-sealing strength applied to air column bag air valve |
| CN114953674A (en) * | 2022-05-07 | 2022-08-30 | 新乐华宝医疗用品有限公司 | Disposable medical liquid-storing bag film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104311966A (en) | Anti-pollution low-temperature heat-sealing polyethylene film easy to tear off | |
| CN104449469B (en) | A kind of preparation method of multi-layer co-extruded barrier package polyethylene adhering resin | |
| CN106739356B (en) | A kind of multi-layer co-extruded shrink film and production technology | |
| CN105524333A (en) | Polyethylene film with excellent heat sealing performance | |
| CN104371597B (en) | A kind of preparation method of multi-layer co-extruded barrier package polypropylene adhering resin | |
| CN103818083B (en) | Pure PE three-layer plastic film, corner angle packing bag prepared therefrom and production method thereof | |
| CN104772956B (en) | A kind of light-weight packed film and preparation method thereof | |
| CN104130530A (en) | Medical composite packaging material and preparation method thereof | |
| CN112009058A (en) | PE film for powder packaging and preparation method thereof | |
| CN107458059B (en) | A kind of polyethylene heat-shrinkage film | |
| CN104961949A (en) | Heat shrink film and production method thereof | |
| CN104893062A (en) | Transparent and low-melting-point PE (polyethylene) plastic film | |
| CN103819806A (en) | Pure PE (polyethylene) single-layer plastic film, corner angle packaging bag prepared therefrom and production method thereof | |
| TW201442847A (en) | Stretched synthetic resin film | |
| CN104844916A (en) | Enhanced polyethylene heat shrinkable film | |
| CN207172929U (en) | A kind of inflation at a high speed is packed for VMCPP metallized films automatically | |
| CN103358560A (en) | Production method of multi-layer co-extruded low-temperature contraction polyolefin thermal contraction membrane | |
| CN107953637A (en) | A kind of packaging film | |
| CN105150648A (en) | Polyethylene/ polypropylene/ polypropylene three-layer co-extrusion upward bowing film and preparation method thereof | |
| CN109094160B (en) | FFS packaging film and preparation method thereof | |
| CN103522695A (en) | Flexible packaging modified CPP (Chlorinated Polypropylene) thin film and production method thereof | |
| CN108099150A (en) | A kind of preparation method of packaging film | |
| CN108016104A (en) | A kind of medical equipment film and its preparation process | |
| CN104175671A (en) | Preparation method of low-temperature and tearing resistant thin film of three-layer composite structure | |
| CN105670097A (en) | High-strength heat-shrinkable film and production method 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |