CN106633342A - Low-melting-point packing film - Google Patents
Low-melting-point packing film Download PDFInfo
- Publication number
- CN106633342A CN106633342A CN201611023050.7A CN201611023050A CN106633342A CN 106633342 A CN106633342 A CN 106633342A CN 201611023050 A CN201611023050 A CN 201611023050A CN 106633342 A CN106633342 A CN 106633342A
- Authority
- CN
- China
- Prior art keywords
- film
- melting point
- low melting
- bag
- point packaging
- 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.)
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Classifications
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- 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
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
- 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
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- 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
- C08L2205/24—Crystallisation aids
-
- 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)
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- 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)
- Wrappers (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses a low-melting-point packing film. The low-melting-point packing film is prepared from, by mass, 65% of vinyl acetate copolymer, 2% of silicon dioxide, 2% of barium sulphate (precipitating method), 23% of low-density polyethylene and 8% of compound open master batch. The nucleating agent silicon dioxide is added in the formula, so that the packing film has good transparency. In addition, a melting point is controlled to be 90 +/-1 DEG C and is stable, and the packing film does not easily break. The low-melting-point packing film is especially suitable for a low-melting-point packing bag with the production bag width smaller than or equal to 400 mm, the obtained packing bag is stable in size, convenient in vertical and horizontal physical property and high in sealing strength, does not easily deform, does not easily break and is high in transparency, free of wrinkles and excellent in appearance.
Description
Technical field
The present invention relates to a kind of packaging material, and in particular to a kind of low melting point packaging film.
Background technology
With the raising of environmental requirement, all trades and professions are all hardy working to reach environmental protection standard.Rubber industry
By it is original it is open feed intake switch to it is closed feed intake come the pollution for reducing material to environment, industry is generated therefrom special
Low melting point plastic packaging bag.Though at present China starts to walk in low melting point packaging bag, problem is also a lot, is mainly shown as following
The problem of several respects:
(1) outward appearance of packaging bag has significantly shortcoming, and gauffer, transparency are low, packaging bag poor dimensional stability, sealing are strong
Spend low, cracky；
(2) physical index is low, and vertically and horizontally difference is big for intensity, cause Jing often occur low intensity direction it is damaged (particularly little
The sack of specification is even more serious), due to it is each to the opposite sex, there is greatly change, load pole after material in the elongation of packing material
Deformation is also easy to produce, causes run-down；
(3) fusing point skewness, temperature difference is larger, affects subsequent applications, also directly influences the product of downstream client
Quality；
(4) limited by current domestic equipment, cause the manufacture craft scheme of low melting point packaging bag unreasonable, caused packaging
Bag quality does not reach use requirement.
The content of the invention
The invention provides a kind of low melting point packaging film, the low melting point packaging film fusing point is stablized, and vertically and horizontally physical property is consistent, no
Cracky, good appearance, product quality is high.
A kind of low melting point packaging film, by mass percentage, filling a prescription is：
The present invention adds nucleator silica in formula so that packaging film has good transparency；And fusing point
At 90 ± 1 DEG C, fusing point is stable, not cracky for control.
Present invention also offers using low melting point packaging bag made by the low melting point packaging film.
Preferably, the bag of the low melting point packaging bag it is wide≤400mm, a length of film of the bag of the low melting point packaging bag rolls over footpath
Half.
Present invention also offers a kind of preparation method of low melting point packaging bag, the preparation method is comprised the following steps：
(1) grain is mixed：By default mass percent, the raw material of the low melting point packaging film is well mixed, obtains batch mixing；
(2) blown film：Using inflation film manufacturing machine is by batch mixing heating and melting and is processed into material film, material film is obtained after cooling
Low melting point packaging film；
(3) bag：By default specification low melting point packaging film is cut and sealed, obtained the eutectic point packaging
Bag.
Preferably, in step (2), the blow-up ratio of the blown film is 3～5:1.Packaging bag is realized by improving blow-up ratio
The vertically and horizontally same sex, make that the vertically and horizontally physical property of low melting point packaging film is consistent, thickness is uniform.
Used as further preferred, in step (2), the blow-up ratio of the blown film is 4:1.
Preferably, in step (2), the cooling is using the type of cooling inside and outside film bubble.Can using this type of cooling
Further improve the transparency of low melting point packaging film.
Preferably, in step (2), the temperature of the cooling is less than 20 DEG C.Chilling temperature is controlled below 20 DEG C, energy
Enough reduce the thickness difference between each position of low melting point packaging film, it is ensured that low melting point packaging film thickness is uniform, eliminate gauffer, improvement is outer
See.
Preferably, in step (3), the bag includes：
1) along the length bearing of trend of low melting point packaging film, low melting point packaging film is cut by default bag is wide, is obtained
Obtain multiple small dimension low melting point packaging films；
2) carry out bilateral heat-sealing to each small dimension low melting point packaging film, and along hot-sealing line perpendicular bisector by small dimension low melting point
Packaging film is cut open, obtains the low melting point packaging bag that a length of 1/2nd film of bag rolls over footpath.
The low melting point packaging bag obtained by above-mentioned bag mode, dimensionally stable, vertically and horizontally physical property is consistent, sealing strength
Height, is not likely to produce deformation, not cracky.
Compared with prior art, beneficial effects of the present invention are：
(1) present invention adds nucleator silica in formula so that low melting point packaging film has good transparency；
And fusing point is controlled at 90 ± 1 DEG C, and fusing point is stable, not cracky；
(2) present invention realizes the vertically and horizontally same sex of packaging bag by improving blow-up ratio, makes low melting point packaging film vertically and horizontally
Physical property is consistent, and thickness is uniform；
(3) present invention is cooled down using the type of cooling inside and outside film bubble, and by chilling temperature control below 20 DEG C, so as to
Reduce the thickness difference between each position of low melting point packaging film, it is ensured that low melting point packaging film thickness is uniform, eliminate gauffer, improvement is outer
See；
(4) present invention is by improving bag mode so that the low melting point packaging bag of acquisition, dimensionally stable, vertically and horizontally physical property
Unanimously, sealing strength is high, is not likely to produce deformation, not cracky；Be particularly suited for producing bag it is wide≤the eutectic point packaging of 400mm
Bag.
Description of the drawings
Fig. 1 is the bag schematic diagram of the present invention；Wherein, 1 is hot-sealing line, and 2 is perpendicular bisector, and W is that bag is wide, L1For film folding
Footpath, L2It is long for bag；
Fig. 2 is bag schematic diagram of the prior art；Wherein, 101 is hot-sealing line, and L is that film rolls over footpath.
Specific embodiment
Technical scheme is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1
A kind of preparation method of low melting point packaging bag, the preparation method is comprised the following steps：
(1) grain is mixed：By default mass percent, following raw materials according is well mixed, obtains batch mixing：
(2) blown film：Using inflation film manufacturing machine is by batch mixing heating and melting and is processed into material film, blow-up ratio is 3:1；
Then, using the type of cooling inside and outside film bubble, cooling treatment is carried out to material film at 20 DEG C, obtains low melting point bag
Dress film；
(3) bag (as shown in Figure 1)：
1) along the length bearing of trend of low melting point packaging film, low melting point packaging film is carried out by the wide W of default bag (400mm)
Cut, obtain multiple small dimension low melting point packaging films；
2) carry out bilateral heat-sealing to each small dimension low melting point packaging film, and along hot-sealing line 1 perpendicular bisector 2 by small dimension eutectic
Point packaging film is cut open, obtains the long L of bag2Footpath L is rolled over for 1/2nd films1Low melting point packaging bag (90 DEG C of fusing point).
Embodiment 2
A kind of preparation method of low melting point packaging bag, the preparation method is comprised the following steps：
(1) grain is mixed：By default mass percent, following raw materials according is well mixed, obtains batch mixing：
(2) blown film：Using inflation film manufacturing machine is by batch mixing heating and melting and is processed into material film, blow-up ratio is 5:1；
Then, using the type of cooling inside and outside film bubble, cooling treatment is carried out to material film at 15 DEG C, obtains low melting point bag
Dress film；
(3) bag (as shown in Figure 1)：
1) along the length bearing of trend of low melting point packaging film, low melting point packaging film is carried out by the wide W of default bag (300mm)
Cut, obtain multiple small dimension low melting point packaging films；
2) carry out bilateral heat-sealing to each small dimension low melting point packaging film, and along hot-sealing line 1 perpendicular bisector 2 by small dimension eutectic
Point packaging film is cut open, obtains the long L of bag2Footpath L is rolled over for 1/2nd films1Low melting point packaging bag (91 DEG C of fusing point).
Embodiment 3
A kind of preparation method of low melting point packaging bag, the preparation method is comprised the following steps：
(1) grain is mixed：By default mass percent, following raw materials according is well mixed, obtains batch mixing：
(2) blown film：Using inflation film manufacturing machine is by batch mixing heating and melting and is processed into material film, blow-up ratio is 4:1；
Then, using the type of cooling inside and outside film bubble, cooling treatment is carried out to material film at 10 DEG C, obtains low melting point bag
Dress film；
(3) bag (as shown in Figure 1)：
1) along the length bearing of trend of low melting point packaging film, low melting point packaging film is carried out by the wide W of default bag (250mm)
Cut, obtain multiple small dimension low melting point packaging films；
2) carry out bilateral heat-sealing to each small dimension low melting point packaging film, and along hot-sealing line 1 perpendicular bisector 2 by small dimension eutectic
Point packaging film is cut open, obtains the long L of bag2Footpath L is rolled over for 1/2nd films1Low melting point packaging bag (95 DEG C of fusing point).
Claims (9)
1. a kind of low melting point packaging film, it is characterised in that by mass percentage, filling a prescription is：
2. low melting point packaging bag made by low melting point packaging film as claimed in claim 1 is adopted.
3. low melting point packaging bag as claimed in claim 2, it is characterised in that bag is wide≤400mm, the one of a length of film folding footpath of bag
Half.
4. a kind of preparation method of low melting point packaging bag, it is characterised in that comprise the following steps：
(1) grain is mixed：By default mass percent, the raw material of low melting point packaging film as claimed in claim 1 is well mixed, is obtained
Obtain batch mixing；
(2) blown film：Using inflation film manufacturing machine is by batch mixing heating and melting and is processed into material film, material film obtains after cooling eutectic
Point packaging film；
(3) bag：By default specification low melting point packaging film is cut and sealed, obtained the low melting point packaging bag.
5. preparation method as claimed in claim 4, it is characterised in that in step (2), the blow-up ratio of the blown film is 3～5:
1。
6. preparation method as claimed in claim 4, it is characterised in that in step (2), the blow-up ratio of the blown film is 4:1.
7. preparation method as claimed in claim 4, it is characterised in that in step (2), the cooling is using the inside and outside cooling of film bubble
Mode.
8. preparation method as claimed in claim 4, it is characterised in that in step (2), the temperature of the cooling is less than 20 DEG C.
9. preparation method as claimed in claim 4, it is characterised in that in step (3), the bag includes：
1) along the length bearing of trend of low melting point packaging film, low melting point packaging film is cut by default bag is wide, is obtained many
Individual small dimension low melting point packaging film；
2) carry out bilateral heat-sealing to each small dimension low melting point packaging film, and along hot-sealing line perpendicular bisector by small dimension eutectic point packaging
Film is cut open, obtains the low melting point packaging bag that a length of 1/2nd film of bag rolls over footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023050.7A CN106633342A (en) | 2016-11-18 | 2016-11-18 | Low-melting-point packing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611023050.7A CN106633342A (en) | 2016-11-18 | 2016-11-18 | Low-melting-point packing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106633342A true CN106633342A (en) | 2017-05-10 |
Family
ID=58808853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611023050.7A Pending CN106633342A (en) | 2016-11-18 | 2016-11-18 | Low-melting-point packing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106633342A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331980A (en) * | 2020-03-19 | 2020-06-26 | 青岛海益塑业有限责任公司 | Low-melting-point film, preparation method and application thereof |
| CN111572004A (en) * | 2020-04-30 | 2020-08-25 | 仲铂新材料有限公司 | Mite killing bag and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819806A (en) * | 2014-02-17 | 2014-05-28 | 上海福助工业有限公司 | Pure PE (polyethylene) single-layer plastic film, corner angle packaging bag prepared therefrom and production method thereof |
| CN103897248A (en) * | 2014-04-16 | 2014-07-02 | 贵州省材料产业技术研究院 | Micro-nano multilayer polymer geomembrane as well as preparation method and device thereof |
| 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 |
| CN105415551A (en) * | 2015-12-10 | 2016-03-23 | 华南理工大学 | Blown film inner and outer airflow collaborative cooling method and device based on chimney effect |
-
2016
- 2016-11-18 CN CN201611023050.7A patent/CN106633342A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819806A (en) * | 2014-02-17 | 2014-05-28 | 上海福助工业有限公司 | Pure PE (polyethylene) single-layer plastic film, corner angle packaging bag prepared therefrom and production method thereof |
| CN103897248A (en) * | 2014-04-16 | 2014-07-02 | 贵州省材料产业技术研究院 | Micro-nano multilayer polymer geomembrane as well as preparation method and device thereof |
| 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 |
| CN105415551A (en) * | 2015-12-10 | 2016-03-23 | 华南理工大学 | Blown film inner and outer airflow collaborative cooling method and device based on chimney effect |
Non-Patent Citations (1)
| Title |
|---|
| 周立明 等: "聚烯烃薄膜开口母料的研制", 《郑州轻工业学院学报(自然科学版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331980A (en) * | 2020-03-19 | 2020-06-26 | 青岛海益塑业有限责任公司 | Low-melting-point film, preparation method and application thereof |
| CN111572004A (en) * | 2020-04-30 | 2020-08-25 | 仲铂新材料有限公司 | Mite killing bag and manufacturing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 261000 Zhoujiashabu 13, Dawenhe Tourism Development Zone, Anqiu City, Weifang City, Shandong Province Applicant after: Zhongplatinum New Materials Co., Ltd. Address before: 261000 Zhoujiashabu 13, Dawenhe Tourism Development Zone, Anqiu City, Weifang City, Shandong Province Applicant before: Weifang Zhong Xin platinum Materials Co., Ltd. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |