CN105216412A - A kind of article packaging thermal contraction packaging film and production method thereof - Google Patents
A kind of article packaging thermal contraction packaging film and production method thereof Download PDFInfo
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- CN105216412A CN105216412A CN201510667637.0A CN201510667637A CN105216412A CN 105216412 A CN105216412 A CN 105216412A CN 201510667637 A CN201510667637 A CN 201510667637A CN 105216412 A CN105216412 A CN 105216412A
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- raw material
- layer
- thermal contraction
- heat
- intermediate layer
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Classifications
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- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2553/00—Packaging equipment or accessories not otherwise provided for
Abstract
The present invention relates to packing technique field, be specially a kind of article packaging thermal contraction packaging film and production method thereof, its heat shrink films deflection produced is high, stretch-proof performance is good, and production cost is low, thermal contraction packaging film comprises upper epidermis, intermediate layer and layer, and in upper epidermis, intermediate layer, layer, raw material weight proportioning is identical, and described raw material weight proportioning is made up of following: melt index is low-density polyethylene 30-45 part of 1.7-2.3g/10min; Melt index is high-density polyethylene 25-35 part of 0.29-0.33g/10min; Carbon PEF 5 to 10 parts; Production method comprises the following steps: (1) takes raw material by weight; (2) by three screw-type extruders extrude rotating discharge after the raw material of upper epidermis, intermediate layer and layer enters three central feeding rotating die heads respectively, (3) the heat material of upper epidermis, intermediate layer and layer is complex as a whole voluntarily and cools in transition body, mould bubble, through collapser sizing, obtains thermal contraction packaging film.
Description
Technical field
The present invention relates to packing technique field, be specially a kind of article packaging thermal contraction packaging film and production method thereof.
Background technology
Heat shrink films is as packaging material common in daily life, and its appearance print color is bright-coloured, attractive in appearance, and the distinctive fire resistance characteristic of product especially common carton institute is incomparable.Along with modern times improving constantly packing instructions, to the carrying consumer, need thermal contraction packaging film of good performance to realize the packaging of article at article again from processing retail shop, ensure the good transport of article, existing thermal contraction all existing defects in deflection and stretch-proof etc., in handling process, packaging film easily damages the transport affecting product.
Summary of the invention
In order to solve the problem, the invention provides a kind of article packaging thermal contraction packaging film and production method thereof, its heat shrink films deflection produced is high, and stretch-proof performance is good, and production cost is low.
Its technical scheme is such: a kind of article packaging thermal contraction packaging film, it is characterized in that, it comprises upper epidermis, intermediate layer and layer, and in described upper epidermis, intermediate layer, layer, raw material weight proportioning is identical, and described raw material weight proportioning is made up of following:
Melt index is low-density polyethylene 30-45 part of 1.7-2.3g/10min;
Melt index is high-density polyethylene 25-35 part of 0.29-0.33g/10min;
Carbon PEF 5 to 10 parts.
It is further characterized in that, melt index is the low-density polyethylene of 1.7-2.3g/10min is the 2420D of CSPC;
Melt index is the high-density polyethylene of 0.29-0.33g/10min is 5621 of CSPC;
Carbon PEF is the 2645G of Dowle.
A production method for above-mentioned article packaging thermal contraction packaging film, it is characterized in that, it comprises the following steps:
(1) raw material is taken by weight;
(2) by three screw-type extruders extrude rotating discharge after the raw material of upper epidermis, intermediate layer and layer enters three central feeding rotating die heads respectively:
The raw material of layer enters the central feeding rotating die head that temperature is 130 DEG C, through 10-15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 30cm 5mm gap in enter transition body;
The raw material in intermediate layer enters the central feeding rotating die head that temperature is 150 DEG C, through 10-15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 40cm 5mm gap in enter transition body;
The raw material of layer enters the central feeding rotating die head that temperature is 170 DEG C, through 10-15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 50cm 5mm gap in enter transition body;
(3) the heat material of upper epidermis, intermediate layer and layer is complex as a whole voluntarily and enters adjustable ring in transition body, evenly die gap is adjusted by screw, the film bubble of the heat material be complex as a whole voluntarily is cooled automatically by two wind air-supply ring overtemperature, film bubble is by the thickness of longitudinal traction adjustment film, adjust the wide cut of horizontal inflation adjustment film, mould bubble, through collapser sizing, obtains thermal contraction packaging film.
Adopt after the solution of the present invention, by improvement of production process with simplify formula, while reducing production cost, product deflection is better, transverse and longitudinal rate can >=450%, lateral pull intensity >=18MPa, longitudinal direction >=30MPa, reach stretch-proof performance better.
Detailed description of the invention
Embodiment one: a kind of article packaging thermal contraction packaging film, it comprises upper epidermis, intermediate layer and layer, and in upper epidermis, intermediate layer, layer, raw material weight proportioning is identical, and raw material weight proportioning is made up of following:
Melt index is the low-density polyethylene 35 parts of 1.7-2.3g/10min;
Melt index is the high-density polyethylene 35 parts of 0.29-0.33g/10min;
Carbon PEF 10 parts.
Melt index is the low-density polyethylene of 1.7-2.3g/10min is the 2420D of CSPC;
Melt index is the high-density polyethylene of 0.29-0.33g/10min is 5621 of CSPC;
Carbon PEF is the 2645G of Dowle.。
A production method for above-mentioned article packaging thermal contraction packaging film, it comprises the following steps:
(1) raw material is taken by weight;
(2) by three screw-type extruders extrude rotating discharge after the raw material of upper epidermis, intermediate layer and layer enters three central feeding rotating die heads respectively:
The raw material of layer enters the central feeding rotating die head that temperature is 130 DEG C, through 15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 30cm 5mm gap in enter transition body;
The raw material in intermediate layer enters the central feeding rotating die head that temperature is 150 DEG C, through 15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 40cm 5mm gap in enter transition body;
The raw material of layer enters the central feeding rotating die head that temperature is 170 DEG C, through 15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 50cm 5mm gap in enter transition body;
(3) the heat material of upper epidermis, intermediate layer and layer is complex as a whole voluntarily and enters adjustable ring in transition body, evenly die gap is adjusted by screw, the film bubble of the heat material be complex as a whole voluntarily is cooled automatically by two wind air-supply ring overtemperature, film bubble is by the thickness of longitudinal traction adjustment film, adjust the wide cut of horizontal inflation adjustment film, mould bubble, through collapser sizing, obtains thermal contraction packaging film.
Embodiment one: a kind of article packaging thermal contraction packaging film, it comprises upper epidermis, intermediate layer and layer, and in upper epidermis, intermediate layer, layer, raw material weight proportioning is identical, and raw material weight proportioning is made up of following:
Melt index is the low-density polyethylene 40 parts of 1.7-2.3g/10min;
Melt index is the high-density polyethylene 25 parts of 0.29-0.33g/10min;
Carbon PEF 5 parts.
Melt index is the low-density polyethylene of 1.7-2.3g/10min is the 2420D of CSPC;
Melt index is the high-density polyethylene of 0.29-0.33g/10min is 5621 of CSPC;
Carbon PEF is the 2645G of Dowle.。
A production method for above-mentioned article packaging thermal contraction packaging film, it comprises the following steps:
(1) raw material is taken by weight;
(2) by three screw-type extruders extrude rotating discharge after the raw material of upper epidermis, intermediate layer and layer enters three central feeding rotating die heads respectively:
The raw material of layer enters the central feeding rotating die head that temperature is 130 DEG C, through 12min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 30cm 5mm gap in enter transition body;
The raw material in intermediate layer enters the central feeding rotating die head that temperature is 150 DEG C, through 12min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 40cm 5mm gap in enter transition body;
The raw material of layer enters the central feeding rotating die head that temperature is 170 DEG C, through 12min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 50cm 5mm gap in enter transition body;
(3) the heat material of upper epidermis, intermediate layer and layer is complex as a whole voluntarily and enters adjustable ring in transition body, evenly die gap is adjusted by screw, the film bubble of the heat material be complex as a whole voluntarily is cooled automatically by two wind air-supply ring overtemperature, film bubble is by the thickness of longitudinal traction adjustment film, adjust the wide cut of horizontal inflation adjustment film, mould bubble, through collapser sizing, obtains thermal contraction packaging film.
Claims (5)
1. an article packaging thermal contraction packaging film, is characterized in that, it comprises upper epidermis, intermediate layer and layer, and in described upper epidermis, intermediate layer, layer, raw material weight proportioning is identical, and described raw material weight proportioning is made up of following:
Melt index is low-density polyethylene 30-45 part of 1.7-2.3g/10min;
Melt index is high-density polyethylene 25-35 part of 0.29-0.33g/10min;
Carbon PEF 5 to 10 parts.
2. a kind of article packaging thermal contraction packaging film according to claim 1, is characterized in that, melt index is the low-density polyethylene of 1.7-2.3g/10min is the 2420D of CSPC.
3. a kind of article packaging thermal contraction packaging film according to claim 1, is characterized in that, melt index is the high-density polyethylene of 0.29-0.33g/10min is 5621 of CSPC.
4. a kind of article packaging thermal contraction packaging film according to claim 1, it is characterized in that, carbon PEF is the 2645G of Dowle.
5. a production method for above-mentioned article packaging thermal contraction packaging film, it is characterized in that, it comprises the following steps:
(1) raw material is taken by weight;
(2) by three screw-type extruders extrude rotating discharge after the raw material of upper epidermis, intermediate layer and layer enters three central feeding rotating die heads respectively:
The raw material of layer enters the central feeding rotating die head that temperature is 130 DEG C, through 10-15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 30cm 5mm gap in enter transition body;
The raw material in intermediate layer enters the central feeding rotating die head that temperature is 150 DEG C, through 10-15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 40cm 5mm gap in enter transition body;
The raw material of layer enters the central feeding rotating die head that temperature is 170 DEG C, through 10-15min heat plasticizing raw material obtain heat material, plasticizing after heat material by screw rod rotary extrusion to highly be 50cm 5mm gap in enter transition body;
(3) the heat material of upper epidermis, intermediate layer and layer is complex as a whole voluntarily and enters adjustable ring in transition body, evenly die gap is adjusted by screw, the film bubble of the heat material be complex as a whole voluntarily is cooled automatically by two wind air-supply ring overtemperature, film bubble is by the thickness of longitudinal traction adjustment film, adjust the wide cut of horizontal inflation adjustment film, mould bubble, through collapser sizing, obtains thermal contraction packaging film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510667637.0A CN105216412A (en) | 2015-10-16 | 2015-10-16 | A kind of article packaging thermal contraction packaging film and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510667637.0A CN105216412A (en) | 2015-10-16 | 2015-10-16 | A kind of article packaging thermal contraction packaging film and production method thereof |
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| CN105216412A true CN105216412A (en) | 2016-01-06 |
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| CN201510667637.0A Pending CN105216412A (en) | 2015-10-16 | 2015-10-16 | A kind of article packaging thermal contraction packaging film and production method thereof |
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Citations (9)
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| US20070260016A1 (en) * | 2006-05-05 | 2007-11-08 | Best Steven A | Linear low density polymer blends and articles made therefrom |
| CN101490162A (en) * | 2006-07-14 | 2009-07-22 | 保瑞利斯科技公司 | Polymer blend |
| CN102173160A (en) * | 2010-12-29 | 2011-09-07 | 东莞市正新包装制品有限公司 | Heavy-duty thermal shrinkage polyethylene film and preparation method thereof |
| JP2013501847A (en) * | 2009-08-10 | 2013-01-17 | ダウ グローバル テクノロジーズ エルエルシー | LDPE for use as a blending component in shrink film applications |
| CN103003350A (en) * | 2010-07-28 | 2013-03-27 | 伊奎斯塔化学有限公司 | Polyethylene blends and films |
| CN103264553A (en) * | 2013-04-28 | 2013-08-28 | 无锡市方成彩印包装有限公司 | Shrink package color film and production method thereof |
| CN104311949A (en) * | 2014-10-11 | 2015-01-28 | 中国石油化工股份有限公司 | High-strength polyethylene material for preparing heat shrinkable film, and preparation method of high-strength polyethylene material |
| CN104890334A (en) * | 2015-06-12 | 2015-09-09 | 成都市益诚包装有限公司 | High-temperature-resistant and creep-resistant polyethylene heat shrinkage film and film-blowing process thereof |
| CN104960300A (en) * | 2015-06-05 | 2015-10-07 | 无锡市方成彩印包装有限公司 | Tetra Pak thin transparent external-packaging shrink film and production method thereof |
-
2015
- 2015-10-16 CN CN201510667637.0A patent/CN105216412A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070260016A1 (en) * | 2006-05-05 | 2007-11-08 | Best Steven A | Linear low density polymer blends and articles made therefrom |
| CN101490162A (en) * | 2006-07-14 | 2009-07-22 | 保瑞利斯科技公司 | Polymer blend |
| JP2013501847A (en) * | 2009-08-10 | 2013-01-17 | ダウ グローバル テクノロジーズ エルエルシー | LDPE for use as a blending component in shrink film applications |
| CN103003350A (en) * | 2010-07-28 | 2013-03-27 | 伊奎斯塔化学有限公司 | Polyethylene blends and films |
| CN102173160A (en) * | 2010-12-29 | 2011-09-07 | 东莞市正新包装制品有限公司 | Heavy-duty thermal shrinkage polyethylene film and preparation method thereof |
| CN103264553A (en) * | 2013-04-28 | 2013-08-28 | 无锡市方成彩印包装有限公司 | Shrink package color film and production method thereof |
| CN104311949A (en) * | 2014-10-11 | 2015-01-28 | 中国石油化工股份有限公司 | High-strength polyethylene material for preparing heat shrinkable film, and preparation method of high-strength polyethylene material |
| CN104960300A (en) * | 2015-06-05 | 2015-10-07 | 无锡市方成彩印包装有限公司 | Tetra Pak thin transparent external-packaging shrink film and production method thereof |
| CN104890334A (en) * | 2015-06-12 | 2015-09-09 | 成都市益诚包装有限公司 | High-temperature-resistant and creep-resistant polyethylene heat shrinkage film and film-blowing process thereof |
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Application publication date: 20160106 |
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