CN103009750A - Biaxial stretching polypropylene common cigarette packaging film and manufacturing method thereof - Google Patents
Biaxial stretching polypropylene common cigarette packaging film and manufacturing method thereof Download PDFInfo
- Publication number
- CN103009750A CN103009750A CN2012105704558A CN201210570455A CN103009750A CN 103009750 A CN103009750 A CN 103009750A CN 2012105704558 A CN2012105704558 A CN 2012105704558A CN 201210570455 A CN201210570455 A CN 201210570455A CN 103009750 A CN103009750 A CN 103009750A
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- CN
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- Prior art keywords
- packaging film
- cigarette packaging
- common cigarette
- temperature
- biaxially oriented
- 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.)
- Granted
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 33
- 229920006280 packaging film Polymers 0.000 title claims abstract description 25
- 239000012785 packaging film Substances 0.000 title claims abstract description 25
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 6
- -1 polypropylene Polymers 0.000 title claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 14
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 150000001412 amines Chemical class 0.000 claims abstract description 7
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 18
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000002216 antistatic agent Substances 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000003595 mist Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229940075507 glyceryl monostearate Drugs 0.000 description 4
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses a biaxial stretching polypropylene common cigarette packaging film and a manufacturing method thereof; aiming at the problem of high haze of current common cigarette packaging films, the invention adopts certain amounts of ethoxylated amine and glycerin monostearate as antistatic agents which does not whiten and does not increase haze; the thickness of a heat-seal layer, that is an upper layer, is controlled to be 0.7-0.8 microns; glass beads are selected as an antiblocking agent; and the biaxial stretching polypropylene common cigarette packaging film is obtained by specific preparation process, which has low haze, and can meet requirements of high-grade cigarette packages by people.
Description
Technical field
The present invention relates to a kind of Biaxially oriented polypropylene common cigarette packaging film and preparation method thereof, belong to technical field of macromolecules.Background technology
The common cigarette film of BOPP has excellent smooth characteristic, lower shrinkage factor and good barrier, generally is used for soft box packing.Present national cigarette reaches more than 70,000 tons with the packing film consumption, and cigarette pack belongs to high-grade packing, and people more and more pay attention to packing, and are also more and more higher to the requirement of cigarette pack outward appearance, particularly require more and more higher to transparency.The Patent Application Publication of CN200810038623 a kind of preparation method who makes the acrylic resin of high-transparency and high-rigidity cigarette packaging film, it uses two (the 4-tert-butyl group-phenoxy group) phosphate to obtain acrylic resin as nucleator, use cigarette packaging film mist degree that this acrylic resin makes about 1.3%, still can not satisfy people to the demand of high-grade cigarette pack.
Summary of the invention
The problems referred to above that exist in order to solve prior art the purpose of this invention is to provide a kind of Biaxially oriented polypropylene common cigarette packaging film, and its haze value is about 1.1%, can satisfy people to the demand of high-grade cigarette pack.Second purpose of the present invention provides the preparation method of this Biaxially oriented polypropylene common cigarette packaging film.
Biaxially oriented polypropylene common cigarette packaging film of the present invention, its structure is divided into the upper, middle and lower-ranking structure, and gross thickness is 16 ~ 22 μ m; Upper thickness is 0.7 ~ 0.8 μ m, is mixed with by the raw material of following weight percent: 96 ~ 98.8% COPPs, 0.2 ~ 1% glass microballoon and 1 ~ 3% silicone; The thickness in intermediate layer is 14.6 ~ 20.4 μ m, is mixed with by the raw material of following weight percent: 99 ~ 99.5% homo-polypropylenes and 0.5 ~ 1% antistatic additive; The thickness of lower floor is 0.7 ~ 0.8 μ m, is mixed with by the raw material of following weight percent: 99 ~ 99.8% ternary polymerized polypropylene and 0.2 ~ 1% glass microballoon.Wherein, the composition of antistatic additive is 80 ~ 90% ethoxylated amine and 10 ~ 20% glyceryl monostearates; The particle diameter of glass microballoon is 2 ~ 6 μ m.
The preparation method of Biaxially oriented polypropylene common cigarette packaging film of the present invention, by prepare burden, extrude, slab, longitudinal stretching, cross directional stretch, rolling prepare, wherein, the stretching ratio of longitudinal stretching operation is 500 ~ 550%; The stretching ratio of cross directional stretch operation is 800 ~ 1000%; The extruder temperature of extruding in the operation is 210 ~ 270 ℃; Slab machine chilling temperature in the slab operation is 16 ~ 25 ℃; Preheat temperature in the longitudinal stretching operation is that 103 ~ 130 ℃, draft temperature are 105 ~ 125 ℃; Preheat temperature in the cross directional stretch operation is that 165 ~ 195 ℃, draft temperature are that 155 ~ 165 ℃, setting temperature are 130 ~ 145 ℃.
Biaxially oriented polypropylene common cigarette packaging film preparation method's of the present invention detailed process is:
(1) adopt biaxial tension equipment to implement, technological process is: prepare burden → extrude → slab → longitudinal stretching → cross directional stretch → rolling.
(2) implementation step
1, batching
Raw material by above-mentioned design drops into different batch cans, carries out batch mixing in the ratio of setting, and batch mixing is batch mixing or equipment batch mixing manually.
2, extrude
The intermediate layer raw material is through flowing into double screw extruder or single screw rod series connection extruder behind the batch mixing, upper and lower layered material is through flowing into separately auxiliary extruder behind the batch mixing.Three layered materials flow out after die head converges.The extruder effect: melting, plasticizing, mixing, equal and quantitative are extruded.Extruder temperature: 210 ~ 270 ℃.
3, slab
The effect of slab machine is that the resin that extruder die head flows out is cooled to sheet material, makes degree of crystallinity, the crystal habit of resin, the size of crystal reach perfect condition, thereby improves the physical property of film, is conducive to the stretching of vertical and horizontal.Slab machine chilling temperature: 16 ~ 25 ℃.
4, longitudinal stretching
The effect of longitudinal stretching is that the sheet material of will come from the slab machine carries out preheating, and under certain speed, sheet material is vertically elongated, and polymer molecule is carried out machine-direction oriented.For guaranteeing the longitudinal contraction rate, the preheat temperature of longitudinal stretching and draft temperature are low as far as possible, and stretching ratio is high as far as possible, and preheat temperature is best: 103 ~ 130 ℃, draft temperature: 105 ~ 125 ℃, stretching ratio: 500 ~ 550%;
5, cross directional stretch
The effect of cross directional stretch is that the sheet material that longitudinal stretching is crossed is carried out cross directional stretch by the chain guide of setting at the drawing zone that the larger angle of flare is arranged, and makes equally polymer molecule at horizontal orientation.For guaranteeing lateral shrinkage, the preheat temperature of cross directional stretch and draft temperature are low as far as possible, but temperature is crossed the low problem that folder and rupture of membranes easily occur taking off; Preheat temperature is best: 165 ~ 195 ℃, draft temperature: 155 ~ 165 ℃, setting temperature: 130 ~ 145 ℃; Stretching ratio the best is 800 ~ 1000%.
6, rolling
The horizontal film that pulls out carries out rolling through winder again through after cutting edge.Winding process is relevant with the performance of film, can follow according to the rolling situation and set winding tension, attenuation rate, the adjustment of pressure roller pressure, draw ratio 100 ± 2%.
The present invention is take a certain amount of ethoxylated amine and glyceryl monostearate as antistatic additive, and it does not whiten, and can not increase mist degree; Be that the THICKNESS CONTROL of upper and lower layer is in the scope of 0.7 ~ 0.8 μ m with hot sealing layer, hot sealing layer thickness can affect heat sealability during less than 0.7 μ m, can increase the product mist degree during greater than 0.8 μ m, so the hot sealing layer THICKNESS CONTROL neither affects heat sealability in the scope of 0.7 ~ 0.8 μ m, can not increase mist degree again; Selecting glass microballoon is antiblocking agent, adopt specific preparation technology to obtain Biaxially oriented polypropylene common cigarette packaging film, it has the mist degree about 1.1%, can satisfy people to the demand of high-grade cigarette pack, has in addition good thickness degree, appearance property and other physical property.
The product representative value
The specific embodiment
Low-haze biaxial stretching polypropylene of the present invention is shunk cigarette packaging film to following specific embodiment and manufacture method is described further.
Embodiment 1
Produce thickness 22 μ m films.Batching: upper bed thickness 0.8 μ m, wherein COPP content is 97.2%, the glass microballoon 0.3% of particle diameter 2.5 μ m, silicone 2.5%; Middle bed thickness 20.4 μ m, wherein homo-polypropylene 99.5%, contains the antistatic additive 0.5% of 80% ethoxylated amine and 20% glyceryl monostearate; Lower bed thickness 0.8 μ m, wherein COPP content is 99.3%, the glass microballoon 0.7% of particle diameter 2.5 μ m.
Masking: adopt biaxial tension co-extrusion technique to make Biaxially oriented polypropylene common cigarette packaging film of the present invention, wherein extruder temperature: 230 ℃; Slab machine temperature: 20 ℃; The longitudinal stretching multiplying power: 495%, the vertical preheat temperature of drawing: 115 ℃, the vertical draft temperature that draws: 110 ℃; The cross directional stretch multiplying power: 930%, the horizontal preheat temperature of drawing: 180 ℃, the horizontal draft temperature that draws: 157 ℃, the horizontal setting temperature that draws: 145 ℃; Rolling draw ratio: 100%.
Embodiment 2
Produce thickness 20 μ m films.Batching: upper bed thickness 0.8 μ m, wherein COPP content is 98%, the glass microballoon 0.4% of particle diameter 2.5 μ m, silicone 1.6%; Middle bed thickness 18.4 μ m, wherein homo-polypropylene 99.5%, contains the antistatic additive 0.5% of 85% ethoxylated amine and 15% glyceryl monostearate; Lower bed thickness 0.8 μ m, wherein COPP content is 99%, the glass microballoon 1% of particle diameter 2.5 μ m.
Masking: adopt biaxial tension co-extrusion technique to make Biaxially oriented polypropylene common cigarette packaging film of the present invention, wherein extruder temperature: 240 ℃; Slab machine temperature: 22 ℃; The longitudinal stretching multiplying power: 500%, the vertical preheat temperature of drawing: 120 ℃, the vertical draft temperature that draws: 115 ℃; The cross directional stretch multiplying power: 950%, the horizontal preheat temperature of drawing: 185 ℃, the horizontal draft temperature that draws: 160 ℃, the horizontal setting temperature that draws: 135 ℃; Rolling draw ratio: 100%.
Embodiment 3
Produce thickness 18 μ m films.Batching: upper bed thickness 0.7 μ m, wherein COPP content is 96.5%, the glass microballoon 0.5% of particle diameter 3 μ m, silicone 3%; Middle bed thickness 16.6 μ m, wherein homo-polypropylene 99%, contains the antistatic additive 1% of 80% ethoxylated amine and 20% glyceryl monostearate; Lower bed thickness 0.7 μ m, wherein COPP content is 99%, the glass microballoon 1% of particle diameter 3 μ m.
Masking: adopt biaxial tension co-extrusion technique to make Biaxially oriented polypropylene common cigarette packaging film of the present invention, wherein extruder temperature: 260 ℃; Slab machine temperature: 20 ℃; The longitudinal stretching multiplying power: 530%, the vertical preheat temperature of drawing: 125 ℃, the vertical draft temperature that draws: 120 ℃; The cross directional stretch multiplying power: 960%, the horizontal preheat temperature of drawing: 190 ℃, the horizontal draft temperature that draws: 160 ℃, the horizontal setting temperature that draws: 140 ℃; Rolling draw ratio: 100%.
Claims (6)
1. Biaxially oriented polypropylene common cigarette packaging film, its structure is divided into the upper, middle and lower-ranking structure, it is characterized in that, and the upper strata is mixed with by the raw material of following weight percent: 96 ~ 98.8% COPPs, 0.2 ~ 1% glass microballoon and 1 ~ 3% silicone; The middle level is mixed with by the raw material of following weight percent: 99 ~ 99.5% homo-polypropylenes and 0.5 ~ 1% antistatic additive; Lower floor is mixed with by the raw material of following weight percent: 99 ~ 99.8% ternary polymerized polypropylene and 0.2 ~ 1% glass microballoon.
2. Biaxially oriented polypropylene common cigarette packaging film according to claim 1 is characterized in that, described antistatic additive comprises that percetage by weight is 80 ~ 90% ethoxylated amine and 10 ~ 20% glyceryl monostearates.
3. Biaxially oriented polypropylene common cigarette packaging film according to claim 1 is characterized in that, the gross thickness of described common cigarette packaging film is 16 ~ 22 μ m, wherein, upper thickness is 0.7 ~ 0.8 μ m, and the thickness in intermediate layer is 14.6 ~ 20.4 μ m, and the thickness of lower floor is 0.7 ~ 0.8 μ m.
4. Biaxially oriented polypropylene common cigarette packaging film according to claim 1 is characterized in that, the particle diameter of described glass microballoon is 2 ~ 6 μ m.
5. the preparation method of Biaxially oriented polypropylene common cigarette packaging film according to claim 1, by prepare burden, extrude, slab, longitudinal stretching, cross directional stretch, rolling prepare, it is characterized in that, the stretching ratio of described longitudinal stretching operation is 500 ~ 550%; The stretching ratio of described cross directional stretch operation is 800 ~ 1000%.
6. the preparation method of Biaxially oriented polypropylene common cigarette packaging film according to claim 5 is characterized in that, the described extruder temperature of extruding in the operation is 210 ~ 270 ℃; Slab machine chilling temperature in the described slab operation is 16 ~ 25 ℃; Preheat temperature in the described longitudinal stretching operation is that 103 ~ 130 ℃, draft temperature are 105 ~ 125 ℃; Preheat temperature in the described cross directional stretch operation is that 165 ~ 195 ℃, draft temperature are that 155 ~ 165 ℃, setting temperature are 130 ~ 145 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570455.8A CN103009750B (en) | 2012-12-25 | 2012-12-25 | A kind of Biaxially oriented polypropylene common cigarette packaging film and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570455.8A CN103009750B (en) | 2012-12-25 | 2012-12-25 | A kind of Biaxially oriented polypropylene common cigarette packaging film and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103009750A true CN103009750A (en) | 2013-04-03 |
| CN103009750B CN103009750B (en) | 2015-11-18 |
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| CN201210570455.8A Active CN103009750B (en) | 2012-12-25 | 2012-12-25 | A kind of Biaxially oriented polypropylene common cigarette packaging film and manufacture method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104342922A (en) * | 2014-11-28 | 2015-02-11 | 周正英 | Polyester fabric finishing agent with antistatic function |
| CN110356085A (en) * | 2019-07-11 | 2019-10-22 | 海南赛诺实业有限公司 | A kind of nude enamelled polypropylene film of three-layer co-extruded profile bar packet and its manufacturing method |
| CN110356084A (en) * | 2019-07-11 | 2019-10-22 | 海南赛诺实业有限公司 | The nude enamelled polypropylene film of the three-layer co-extruded profile bar packet of low haze and its manufacturing method |
| CN113172974A (en) * | 2021-05-26 | 2021-07-27 | 海南赛诺实业有限公司 | Biaxially oriented degradable film and preparation method thereof |
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Cited By (4)
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| CN104342922A (en) * | 2014-11-28 | 2015-02-11 | 周正英 | Polyester fabric finishing agent with antistatic function |
| CN110356085A (en) * | 2019-07-11 | 2019-10-22 | 海南赛诺实业有限公司 | A kind of nude enamelled polypropylene film of three-layer co-extruded profile bar packet and its manufacturing method |
| CN110356084A (en) * | 2019-07-11 | 2019-10-22 | 海南赛诺实业有限公司 | The nude enamelled polypropylene film of the three-layer co-extruded profile bar packet of low haze and its manufacturing method |
| CN113172974A (en) * | 2021-05-26 | 2021-07-27 | 海南赛诺实业有限公司 | Biaxially oriented degradable film and preparation method thereof |
Also Published As
| Publication number | Publication date |
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| CN103009750B (en) | 2015-11-18 |
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Denomination of invention: Biaxial stretching polypropylene common cigarette packaging film and manufacturing method thereof Effective date of registration: 20190702 Granted publication date: 20151118 Pledgee: China Construction Bank Co., Ltd. Haikou Daying Shan Branch Pledgor: Hai'nan Sainuo Industry Co., Ltd. Registration number: 2019460000008 |
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