CN102423947A - Plastic substrate film for chocolate food packaging and processing technic thereof - Google Patents
Plastic substrate film for chocolate food packaging and processing technic thereof Download PDFInfo
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- CN102423947A CN102423947A CN2011102206081A CN201110220608A CN102423947A CN 102423947 A CN102423947 A CN 102423947A CN 2011102206081 A CN2011102206081 A CN 2011102206081A CN 201110220608 A CN201110220608 A CN 201110220608A CN 102423947 A CN102423947 A CN 102423947A
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- low density
- density polyethylene
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Abstract
The invention relates to a plastic substrate film for chocolate food packaging. The plastic substrate film comprises an inner layer, an intermediate layer and an outer layer, wherein the inner layer is prepared from low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and metallocene linear low density polyethylene (mLLDPE); the intermediate layer is prepared from LDPE and LLDPE; and the outer layer is prepared from mLLDPE. A processing technic of the plastic substrate film comprises the steps of mixed feed extruding, film blowing, setting, haulage cutting and the like. The plastic substrate film and the processing technic have the following beneficial effects: the plastic substrate film has high barrier property, high air tightness, pollution resistance, high heat sealing strength and good heat sealing property, has certain pressure resistance and impact resistance and conforms to food safety certification.
Description
Technical field
The invention belongs to the plastics chemical industry, relate in particular to a kind of packaging for foodstuff plastic basis material film and production technology thereof.
Background technology
Present packaging for foodstuff industry says that the packing base material film quantity that needs is big, kind is many, adopts the very difficult packing instructions that adapt to Special food of film of single raw material production.Trace it to its cause, though mainly be that respectively to produce producer's production technology of plastic raw materials each has something to recommend him, every kind of raw material all has its weak point, so the film of producing is difficult to satisfy the demand of various situation.Adopt different material to mix the way of using though some companies also have, owing to lack the necessary testing equipment and the testing program of checkout equipment and system, its effect is unsatisfactory.
Packaging for foodstuff plastic basis material film is produced with blow moiding method with the polyethylene raw material usually.But it is competent to want to reach above-mentioned these performance requirements and be not single polyethylene blown film technology institute, has therefore developed the polyethylene raw material of multiple performance.Yet; The polyethylene film of individual layer is poor to the barrier of gases such as oxygen; Packing sauce class time-like is prone to cause sealing part to pollute, and general flexible package punch polyethylene film is poor to the sealing property of this type of packing; Can not satisfy the requirement of its technology of the package and connection with wrapping of piece storage period, therefore must adopt barrier property and be mingled with sealing property all good multilaminar polyethylene modified film or laminated film.
Requirement for chocolate food packing is especially harsh, requires that the plastic basis material film must possess high barrier, high-air-tightness, resistance tocrocking, heat seal strength is high, heat sealability is good, and certain resistance to pressure and resistance to impact are arranged, and meets the food security authentication.Be fit to the chocolate food packing and use the useful LLDPE LLDPE of polyethylene raw material, hp-ldpe LDPE and metallocene linear polyethylene mLLDPE.But; The plastic sheeting of simply one or more polyethylene raw material mixing after-blow being made can not satisfy the needs of extra package; Also need to carry out qualitative and quantitative analysis, do the careful proportioning of system, be aided with necessary processing aid again according to designing requirement according to density, melt index, vicat softening point temperature, biaxial tension rate and the hot strength of various polyethylene raw materials; Finally make the plastic sheeting of blowing out within the specific limits, satisfy the requirement of extra package.
Summary of the invention
The present invention has designed a kind of chocolate food packing plastics base film and production technology thereof; Its purpose is to provide a kind of high barrier, high-air-tightness, resistance tocrocking, heat seal strength is high, heat sealability is good; Certain resistance to pressure and resistance to impact are arranged, meet the chocolate food packing Bag Material base film of food security authentication.
In order to solve the technical problem of above-mentioned existence, the present invention has adopted following scheme:
A kind of chocolate food packing plastics base film is characterized in that: comprise internal layer, intermediate layer and outer three-decker; Described internal layer adopts low density polyethylene, LLDPE LLDPE and metallocene linear-low density polyethylene mLLDPE to process; Described intermediate layer adopts low density polyethylene and LLDPE LLDPE to process, and the described outer metallocene linear-low density polyethylene mLLDPE that adopts processes.
It is 2.2-2.4g/10min that said internal layer adopts melt index, and density is 0.921-0.924g/cm
2Low density polyethylene, melt index be 1.9-2.2g/10min, density is 0.918-0.921g/cm
2LLDPE LLDPE, melt index be 1.9-2.2g/10min, density is 0.910-0.915g/cm
2Metallocene linear-low density polyethylene mLLDPE, its quality proportioning is that LDPE:LLDPE:mLLDPE=5-15:65-75:15-25 processes;
It is 2.2-2.4g/10min that melt index is adopted in said intermediate layer, and density is 0.921-0.924g/cm
2Low density polyethylene and melt index be 1.9-2.2g/10min, density is 0.918-0.921g/cm
2LLDPE LLDPE, its quality proportioning is that LDPE:LLDPE=35-45:55-65 processes;
It is 1.9-2.2g/10min that said skin all adopts melt index, and density is 0.924-0.927g/cm
2Metallocene linear-low density polyethylene mLLDPE process.
Mass ratio between said internal layer, intermediate layer and the skin is 1:1:1.
A kind of preparation technology of chocolate food packing plastics base film is characterized in that may further comprise the steps:
Send extruder to extrude after each raw material mixed in proportion, wherein the melt temperature of extruder is 175 ℃-195 ℃, and the initial temperature of charging is 175 ℃-185 ℃; The roller bar rotating speed of main frame is 80r/min-120r/min; Carry out blown film then; Finalize the design, draw cutting at last.
The incorporation time of said raw material is 15min-20min.
The temperature of said film head raises from bottom to top gradually, and its temperature range is 165 ℃-205 ℃.
The thickness of said film is not more than 0.0035mm.
This chocolate food packing plastics base film and production technology thereof have following beneficial effect:
(1) chocolate food packing plastics base film barrier of the present invention and air-tightness are good, have good resistance tocrocking, resistance to pressure and resistance to impact.
(2) chocolate food packing plastics base film of the present invention has heat seal strength height, characteristics that heat sealability is good simultaneously, meets the state food safety certification.
(3) chocolate food packing plastics base film production technology of the present invention, reasonable in design, flow process is simple, is easy to realize.
(4) chocolate food packing plastics base film production technology of the present invention has improved the inherent quality of product, has improved appearance, has reduced labour intensity simultaneously, has improved production efficiency.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is further specified:
The following example is intended to explain the optimal way of test, and in these embodiment, except as otherwise noted, described percentage is by weight.
Following testing equipment adopts: the blowing main frame: three-layer co-extruded traction rotation blown film unit, drawn subsidiary engine, winder etc. and formed by three extruders, a die head, typing cage, a cover.
Checkout equipment: GBL-L electronic tension tester and MXD-01 friction coefficient instrument.
Embodiment 1
With the ratio of raw material in internal layer low density polyethylene 10%, LLDPE LLDPE70%, metallocene linear polyethylene mLLDPE20%; The intermediate layer is in the ratio of low density polyethylene 40%, LLDPE LLDPE60%; Outer ratio preparation raw materials for production in metallocene linear-low density polyethylene mLLDPE100%; Mix 15min, setting melt temperature is 185 ℃-195 ℃, and the roller bar rotating speed of main frame is 175 ℃-200 ℃ of 120r/min film head temperature, typing, traction cutting.The sealed polyethylene plastic performance of producing is following: hot strength is that 22.35Mpa, elongation at break are 585.4%, heat seal strength is 9.7, coefficient of friction is 0.199.
Embodiment 2
With the ratio of raw material in internal layer low density polyethylene 7%, LLDPE LLDPE68%, metallocene linear polyethylene mLLDPE25%; The intermediate layer is in the ratio of low density polyethylene 35%, LLDPE LLDPE65%; Outer ratio preparation raw materials for production in metallocene linear-low density polyethylene mLLDPE100%; Mix 18min, setting melt temperature is 185 ℃-195 ℃, and the roller bar rotating speed of main frame is 175 ℃-205 ℃ of 100r/min film head temperature, typing, traction cutting.The sealed polyethylene plastic performance of producing is following: hot strength is that 22.35Mpa, elongation at break are 585.4%, heat seal strength is 9.7, coefficient of friction is 0.199.
Embodiment 3
With the ratio of raw material in internal layer low density polyethylene 15%, LLDPE LLDPE65%, metallocene linear polyethylene mLLDPE20%; The intermediate layer is in the ratio of low density polyethylene 50%, LLDPE LLDPE50%; Outer ratio preparation raw materials for production in metallocene linear-low density polyethylene mLLDPE100%; Mix 20min, setting melt temperature is 185 ℃-195 ℃, and the roller bar rotating speed of main frame is 170 ℃-200 ℃ of 120r/min film head temperature, typing, traction cutting.The sealed polyethylene plastic performance of producing is following: hot strength is that 22.35Mpa, elongation at break are 585.4%, heat seal strength is 9.7, coefficient of friction is 0.199.
Combine specific embodiment that the present invention has been carried out exemplary description above; Obvious realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all in protection scope of the present invention.
Claims (6)
1. a chocolate food packing plastics base film is characterized in that: comprise internal layer, intermediate layer and outer three-decker; Described internal layer adopts low density polyethylene, LLDPE LLDPE and metallocene linear-low density polyethylene mLLDPE to process; Described intermediate layer adopts low density polyethylene and LLDPE LLDPE to process, and the described outer metallocene linear-low density polyethylene mLLDPE that adopts processes.
2. according to the said chocolate food packing plastics of claim 1 base film, it is characterized in that: it is 2.2-2.4g/10min that said internal layer adopts melt index, and density is 0.921-0.924g/cm
2Low density polyethylene, melt index be 1.9-2.2g/10min, density is 0.918-0.921g/cm
2LLDPE LLDPE, melt index be 1.9-2.2g/10min, density is 0.910-0.915g/cm
2Metallocene linear-low density polyethylene mLLDPE, its quality proportioning is that LDPE:LLDPE:mLLDPE=5-15:65-75:15-25 processes;
It is 2.2-2.4g/10min that melt index is adopted in said intermediate layer, and density is 0.921-0.924g/cm
2Low density polyethylene and melt index be 1.9-2.2g/10min, density is 0.918-0.921g/cm
2LLDPE LLDPE, its quality proportioning is that LDPE:LLDPE=35-45:55-65 processes;
It is 1.9-2.2g/10min that said skin all adopts melt index, and density is 0.924-0.927g/cm
2Metallocene linear-low density polyethylene mLLDPE process.
3. according to claim 1 or 2 said chocolate food packing plastics base films, it is characterized in that: the mass ratio between said internal layer, intermediate layer and the skin is 1:1:1.
4. preparation technology according to each said chocolate food packing plastics base film of claim 1-3 is characterized in that may further comprise the steps:
Send extruder to extrude after each raw material mixed in proportion, wherein the melt temperature of extruder is 175 ℃-195 ℃, and the initial temperature of charging is 175 ℃-185 ℃; The roller bar rotating speed of main frame is 80r/min-120r/min; Carry out blown film then; Finalize the design, draw cutting at last.
5. according to the preparation technology of the said chocolate food packing plastics of claim 4 base film, it is characterized in that: the incorporation time of said raw material is 15min-20min.
6. according to the preparation technology of claim 4 or 5 said chocolate food packing plastics base films, it is characterized in that: the temperature of said film head raises from bottom to top gradually, and its temperature range is 165 ℃-205 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102206081A CN102423947A (en) | 2011-08-03 | 2011-08-03 | Plastic substrate film for chocolate food packaging and processing technic thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102206081A CN102423947A (en) | 2011-08-03 | 2011-08-03 | Plastic substrate film for chocolate food packaging and processing technic thereof |
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| CN102423947A true CN102423947A (en) | 2012-04-25 |
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| CN2011102206081A Pending CN102423947A (en) | 2011-08-03 | 2011-08-03 | Plastic substrate film for chocolate food packaging and processing technic thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991074A (en) * | 2012-12-28 | 2013-03-27 | 昆山金盟塑料薄膜有限公司 | Thin film and production method thereof |
| WO2014052430A1 (en) * | 2012-09-28 | 2014-04-03 | Mars, Incorporated | Heat resistant chocolate |
| CN103879112A (en) * | 2014-02-26 | 2014-06-25 | 成都市兴恒泰印务有限公司 | Polyethylene film for plastic compound flexible package and blow molding method thereof |
| CN112810277A (en) * | 2020-12-31 | 2021-05-18 | 海宁市粤海彩印有限公司 | High-strength liquid packaging film and production process thereof |
| US11241021B2 (en) | 2009-06-12 | 2022-02-08 | Mars, Incorporated | Chocolate compositions containing ethylcellulose |
| US11896018B2 (en) | 2010-11-15 | 2024-02-13 | Mars, Incorporated | Dough products comprising ethylcellulose and exhibiting reduced oil migration |
| US12016347B2 (en) | 2022-02-07 | 2024-06-25 | Mars, Incorporated | Chocolate compositions containing ethylcellulose |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314735A (en) * | 1996-05-24 | 1997-12-09 | Hosokawa Yoko:Kk | High barrier packaging material and bag body |
| EP1108749A1 (en) * | 1999-12-13 | 2001-06-20 | Fina Research S.A. | Medium density polyethylene compositions for film applications |
| CN101367283A (en) * | 2008-07-22 | 2009-02-18 | 黄山永新股份有限公司 | Antimicrobial polyethylene film and preparing technique thereof |
| CN101475074A (en) * | 2009-01-22 | 2009-07-08 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
| GB2458160A (en) * | 2008-03-07 | 2009-09-09 | Exxonmobil Chem Patents Inc | High MIR linear polyethylene, in co-extruded films |
-
2011
- 2011-08-03 CN CN2011102206081A patent/CN102423947A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314735A (en) * | 1996-05-24 | 1997-12-09 | Hosokawa Yoko:Kk | High barrier packaging material and bag body |
| EP1108749A1 (en) * | 1999-12-13 | 2001-06-20 | Fina Research S.A. | Medium density polyethylene compositions for film applications |
| GB2458160A (en) * | 2008-03-07 | 2009-09-09 | Exxonmobil Chem Patents Inc | High MIR linear polyethylene, in co-extruded films |
| CN101367283A (en) * | 2008-07-22 | 2009-02-18 | 黄山永新股份有限公司 | Antimicrobial polyethylene film and preparing technique thereof |
| CN101475074A (en) * | 2009-01-22 | 2009-07-08 | 黄山永佳（集团）有限公司 | Self-lubricating polyethylene membrane |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11241021B2 (en) | 2009-06-12 | 2022-02-08 | Mars, Incorporated | Chocolate compositions containing ethylcellulose |
| US11896018B2 (en) | 2010-11-15 | 2024-02-13 | Mars, Incorporated | Dough products comprising ethylcellulose and exhibiting reduced oil migration |
| WO2014052430A1 (en) * | 2012-09-28 | 2014-04-03 | Mars, Incorporated | Heat resistant chocolate |
| US11582983B2 (en) | 2012-09-28 | 2023-02-21 | Mars, Incorporated | Heat resistant chocolate |
| CN102991074A (en) * | 2012-12-28 | 2013-03-27 | 昆山金盟塑料薄膜有限公司 | Thin film and production method thereof |
| CN103879112A (en) * | 2014-02-26 | 2014-06-25 | 成都市兴恒泰印务有限公司 | Polyethylene film for plastic compound flexible package and blow molding method thereof |
| CN112810277A (en) * | 2020-12-31 | 2021-05-18 | 海宁市粤海彩印有限公司 | High-strength liquid packaging film and production process thereof |
| US12016347B2 (en) | 2022-02-07 | 2024-06-25 | Mars, Incorporated | Chocolate compositions containing ethylcellulose |
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| ASS | Succession or assignment of patent right |
Owner name: DALIAN RUIXIANDA PLASTIC CO., LTD. Free format text: FORMER OWNER: DALIAN FANGSHENG PLASTIC CO., LTD. Effective date: 20130603 |
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Effective date of registration: 20130603 Address after: Zhanqian street Jinzhou District of Dalian City, Liaoning province 116100 WUJIATUN Airport Applicant after: Dalian Ruixianda Plastic Co., Ltd. Address before: 116100, Liaoning, Dalian province Jinzhou District Station Street Wu Tun Airport Applicant before: Dalian Fangsheng Plastic Co., Ltd. |
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Application publication date: 20120425 |