CN112175282A - BOPP (biaxially-oriented polypropylene) shrinkage cigarette film - Google Patents
BOPP (biaxially-oriented polypropylene) shrinkage cigarette film Download PDFInfo
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- CN112175282A CN112175282A CN201910595184.3A CN201910595184A CN112175282A CN 112175282 A CN112175282 A CN 112175282A CN 201910595184 A CN201910595184 A CN 201910595184A CN 112175282 A CN112175282 A CN 112175282A
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- 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
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- 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
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- 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
- C08J2457/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08J2457/02—Copolymers of mineral oil hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention relates to the technical field of a shrink cigarette film and discloses a BOPP shrink cigarette film. The biaxially oriented polypropylene film is prepared from a master batch composition containing homo-polypropylene, petroleum resin C5, petroleum resin C9, nano zinc oxide, a silane coupling agent and an antioxidant, and the preparation process comprises the following steps: the masterbatch composition is subjected to melt extrusion, cooling, pelletizing and drying to obtain a master batch, then the master batch is made into a sheet through a flat T-shaped machine head, and then is stretched in two vertical directions synchronously or step by step in a stretching machine, and then is subjected to cooling or heat setting treatment. The shrinkable tobacco film has a high film elastic modulus.
Description
Technical Field
The invention relates to the technical field of plastic films, in particular to a BOPP (biaxially-oriented polypropylene) shrinkage smoke film.
Background
The biaxially oriented polypropylene cigarette packaging heat shrinkable film is a BOPP shrinkable film, is a high-grade BOPP film, needs a large amount of stiffening master batch in the production process of the BOPP shrinkable film, is a modified material, is prepared by mixing homopolymer polypropylene and the modified stiffening material according to a certain proportion, can obviously improve the heat shrinkage rate of the film, improve the haze and the glossiness of the film, enhance the barrier property of the film and meet the good appearance requirement required by the packaging process of the high-grade cigarettes.
The stiffening master batch in the market is mainly used for producing 20-micron BOPP (biaxially-oriented polypropylene) shrink tobacco films, the cigarette package shows the development trend of thinning of the packaging film in order to achieve the purpose of environmental protection, the generation amount of garbage is reduced as much as possible on the premise of meeting the packaging function, namely, the packaging raw materials such as the film and the like are encouraged to be used less, and the production thickness of the BOPP shrink tobacco films with corresponding requirements is developed from 20 microns to 18 microns or even 16 microns.
When the stiffening master batch in the market is used for producing the BOPP shrinkage cigarette film with a relatively thin thickness, the problems of low elastic modulus, poor smoothness, unsmooth unwinding of the wound film and the like can occur, so that the BOPP shrinkage cigarette film is unstable in service performance and cannot be normally used on a cigarette packaging machine.
Disclosure of Invention
The invention aims to overcome the technical problems in the prior art and provide a BOPP (biaxially-oriented polypropylene) shrinkage smoke film which has high film elastic modulus.
In order to achieve the above object, the present invention provides a BOPP shrink smoke film, which is made of a master batch composition containing homo-polypropylene, petroleum resin C5, petroleum resin C9, nano zinc oxide, a silane coupling agent and an antioxidant, and the preparation process comprises: the masterbatch composition is subjected to melt extrusion, cooling, pelletizing and drying to obtain a master batch, then the master batch is made into a sheet through a flat T-shaped machine head, and then is stretched in two vertical directions synchronously or step by step in a stretching machine, and then is subjected to cooling or heat setting treatment.
Preferably, in the master batch composition, relative to 100 parts by weight of the homo-polypropylene, the content of the petroleum resin C5 is 5-40 parts by weight, the content of the petroleum resin C9 is 1-20 parts by weight, the content of the nano zinc oxide is 5-40 parts by weight, the content of the silane coupling agent is 0.5-3 parts by weight, and the content of the antioxidant is 0.1-2 parts by weight.
Further preferably, in the master batch composition, relative to 100 parts by weight of the homo-polypropylene, the content of the petroleum resin C5 is 20-30 parts by weight, the content of the petroleum resin C9 is 10-15 parts by weight, the content of the nano zinc oxide is 20-30 parts by weight, the content of the silane coupling agent is 1-2 parts by weight, and the content of the antioxidant is 0.5-1 part by weight.
Preferably, the operating conditions for stretching in two perpendicular directions comprise: the temperature is 170-220 ℃, and the rotating speed is 100-200 r/min.
The shrinkable tobacco film according to the present invention has a high film elastic modulus.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
The BOPP shrinkage smoke film is prepared from a master batch composition containing homopolymerized polypropylene, petroleum resin C5, petroleum resin C9, nano zinc oxide, a silane coupling agent and an antioxidant, and the preparation process comprises the following steps: the masterbatch composition is subjected to melt extrusion, cooling, pelletizing and drying to obtain a master batch, then the master batch is made into a sheet through a flat T-shaped machine head, and then is stretched in two vertical directions synchronously or step by step in a stretching machine, and then is subjected to cooling or heat setting treatment.
Preferably, in the master batch composition, relative to 100 parts by weight of the homo-polypropylene, the content of the petroleum resin C5 is 5-40 parts by weight, the content of the petroleum resin C9 is 1-20 parts by weight, the content of the nano zinc oxide is 5-40 parts by weight, the content of the silane coupling agent is 0.5-3 parts by weight, and the content of the antioxidant is 0.1-2 parts by weight.
Further preferably, in the master batch composition, relative to 100 parts by weight of the homo-polypropylene, the content of the petroleum resin C5 is 20-30 parts by weight, the content of the petroleum resin C9 is 10-15 parts by weight, the content of the nano zinc oxide is 20-30 parts by weight, the content of the silane coupling agent is 1-2 parts by weight, and the content of the antioxidant is 0.5-1 part by weight.
In a preferred case, the operating conditions for stretching in two perpendicular directions include: the temperature is 170-220 ℃, and the rotating speed is 100-200 r/min.
In a specific embodiment, the BOPP shrink smoke film is prepared by a process comprising: the master batch composition is subjected to melt extrusion, cooling, pelletizing and drying to obtain master batches, then the master batches are made into sheets through a flat T-shaped machine head, and then are stretched in two vertical directions (longitudinal direction and transverse direction) synchronously or step by step in a stretching machine under the conditions of the temperature of 170-. The prepared BOPP shrinkage smoke film has higher film elastic modulus.
The present invention will be described in detail below by way of examples, but the scope of the present invention is not limited thereto.
Example 1
Preparing a master batch composition according to the proportion: 100 parts of homopolymerized polypropylene, 25 parts of petroleum resin C5, 13 parts of petroleum resin C9, 25 parts of nano zinc oxide, 1.5 parts of silane coupling agent and 0.8 part of antioxidant.
And carrying out melt extrusion, cooling, granulating and drying on the master batch composition to obtain master batches, then making the master batches into sheets through a flat T-shaped machine head, synchronously or step-by-step stretching in two vertical directions (longitudinal direction and transverse direction) in a stretching machine at the temperature of 200 ℃ and the rotating speed of 150 rpm, and then carrying out cooling or heat setting treatment to obtain the BOPP shrinkage smoke film. The prepared BOPP shrinkage smoke film has higher film elastic modulus.
Example 2
Preparing a master batch composition according to the proportion: 100 parts of homopolymerized polypropylene, 30 parts of petroleum resin C5, 10 parts of petroleum resin C9, 20 parts of nano zinc oxide, 2 parts of silane coupling agent and 1 part of antioxidant.
The master batch composition is subjected to melt extrusion, cooling, granulation and drying to obtain master batches, then the master batches are made into sheets through a flat T-shaped machine head, and then the sheets are stretched in a stretcher at the temperature of 170 ℃ and the rotating speed of 200 rpm in two vertical directions (longitudinal direction and transverse direction) synchronously or step by step, and then cooling or heat setting treatment is carried out to obtain the BOPP shrinkage smoke film. The prepared BOPP shrinkage smoke film has higher film elastic modulus.
Example 3
Preparing a master batch composition according to the proportion: 100 parts of homopolymerized polypropylene, 20 parts of petroleum resin C5, 15 parts of petroleum resin C9, 30 parts of nano zinc oxide, 1 part of silane coupling agent and 0.5 part of antioxidant.
The master batch composition is subjected to melt extrusion, cooling, granulation and drying to obtain master batches, then the master batches are made into sheets through a flat T-shaped machine head, and then the sheets are stretched in a stretcher at the temperature of 220 ℃ and the rotating speed of 100 revolutions per minute in two vertical directions (longitudinal direction and transverse direction) synchronously or step by step, and then cooling or heat setting treatment is carried out to obtain the BOPP shrinkage smoke film. The prepared BOPP shrinkage smoke film has higher film elastic modulus.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (4)
1. A BOPP shrink cigarette film is prepared from a master batch composition containing homo-polypropylene, petroleum resin C5, petroleum resin C9, nano-zinc oxide, a silane coupling agent and an antioxidant, and the preparation process comprises the following steps: the masterbatch composition is subjected to melt extrusion, cooling, pelletizing and drying to obtain a master batch, then the master batch is made into a sheet through a flat T-shaped machine head, and then is stretched in two vertical directions synchronously or step by step in a stretching machine, and then is subjected to cooling or heat setting treatment.
2. The BOPP shrinkage smoke film according to claim 1, wherein in the master batch composition, relative to 100 parts by weight of the homo-polypropylene, the content of the petroleum resin C5 is 5-40 parts by weight, the content of the petroleum resin C9 is 1-20 parts by weight, the content of the nano zinc oxide is 5-40 parts by weight, the content of the silane coupling agent is 0.5-3 parts by weight, and the content of the antioxidant is 0.1-2 parts by weight.
3. The BOPP shrinkage smoke film according to claim 2, wherein in the master batch composition, relative to 100 parts by weight of the homo-polypropylene, the content of the petroleum resin C5 is 20-30 parts by weight, the content of the petroleum resin C9 is 10-15 parts by weight, the content of the nano zinc oxide is 20-30 parts by weight, the content of the silane coupling agent is 1-2 parts by weight, and the content of the antioxidant is 0.5-1 part by weight.
4. The BOPP shrink smoke film according to any one of claims 1 to 3, wherein the stretching in two perpendicular directions comprises: the temperature is 170-220 ℃, and the rotating speed is 100-200 r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595184.3A CN112175282A (en) | 2019-07-03 | 2019-07-03 | BOPP (biaxially-oriented polypropylene) shrinkage cigarette film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910595184.3A CN112175282A (en) | 2019-07-03 | 2019-07-03 | BOPP (biaxially-oriented polypropylene) shrinkage cigarette film |
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| Publication Number | Publication Date |
|---|---|
| CN112175282A true CN112175282A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910595184.3A Pending CN112175282A (en) | 2019-07-03 | 2019-07-03 | BOPP (biaxially-oriented polypropylene) shrinkage cigarette film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114957857A (en) * | 2022-06-20 | 2022-08-30 | 安徽亿鸿新材料科技有限公司 | High-toughness BOPP film and manufacturing method thereof |
-
2019
- 2019-07-03 CN CN201910595184.3A patent/CN112175282A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114957857A (en) * | 2022-06-20 | 2022-08-30 | 安徽亿鸿新材料科技有限公司 | High-toughness BOPP film and manufacturing method thereof |
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Application publication date: 20210105 |