CN104924712A - Self-supporting bag and composite film thereof - Google Patents
Self-supporting bag and composite film thereof Download PDFInfo
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- CN104924712A CN104924712A CN201510424966.2A CN201510424966A CN104924712A CN 104924712 A CN104924712 A CN 104924712A CN 201510424966 A CN201510424966 A CN 201510424966A CN 104924712 A CN104924712 A CN 104924712A
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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
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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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/16—Layered products comprising a layer of synthetic resin specially treated, e.g. irradiated
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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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
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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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
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Abstract
The invention discloses a polyethylene film. The polyethylene film comprises a composite layer, a middle layer and a heat sealing layer which are sequentially overlapped. The composite layer comprises 60-70wt% of metallocene polyethylene and 30-40wt% of low-density polyethylene; the middle layer comprises 30-35wt% of high-density polyethylene, 30-35wt% of linear low-density polyethylene and 30-35wt% of low-density polyethylene; the heat sealing layer comprises 33-35% of low-density polyethylene, 63-65% of reinforcing polyethylene resin, 0.5-0.8wt% of slipping agent and 1.3-2.0wt% of anti-blocking agent. A melting point of the composite layer is higher than that of the middle layer, and the melting point of the middle layer is higher than that of the heat sealing layer. The invention further provides a composite film and a self-supporting bag which are prepared through the polyethylene film. By the adoption of the PE film, PE melting of the heat sealing portion can be effectively avoided, the heat sealing performance of the PE film is greatly improved, and the polyethylene film has excellent adaptation, pressure resistance and falling resistance and meets the requirement of actual production.
Description
Technical field
The present invention relates to consumable products packaging field, particularly relate to the Self stand bag product of a kind of polyethylene film, band tip Self stand bag laminated film and band tip.
Background technology
In recent years, the food service industry that disappears soon emerges just gradually, and its demand increases day by day, and increasing consumer requires also more and more higher for the functional package of fast-moving consumer goods.Self stand bag, as the one of numerous packaging bag that disappears soon, due to its bag of shape uniqueness, is well received by consumers always, and the complexity of Self stand bag Product Process all can be complained by meanwhile a lot of flexible package producers.
Relative to other packaging product, Self stand bag is made up of Hu Zui, bag two parts, and it makes and mainly contain printing, compound, bag, scalds suction nozzle four road technique.Especially in boiling hot suction nozzle technique, often there will be heat-seal land because heat-sealing temperature is too high or pressure is excessive, overlong time causes " PE melts out " phenomenon, local is produced and obviously purses up.If heat-sealing temperature is inadequate or pressure is too small, heat-sealing portion sealing can be caused again bad, the defect that heat seal strength is not up to standard, once breakage occurs packing material in transportation, even can affect FCL food cannot sell, and causes tremendous economic to lose.
For different product content things and different packaging class, currently marketed Self stand bag complex thin film structure generally has PET/PE, PET/AL/PE, PET/AL/NY/PE etc., in bag technique, composite film material needs to seal, therefore the internal layer of existing laminated film adopts polyethylene (PE) film usually, as adopted the structure of nylon (NY)/PE.Existing polyethylene film limits by material, and after heat-sealing, easily appearance is extremely wrinkled phenomenon, causes Self stand bag to use not withstand voltage, easy-to-leak liquid after a period of time thus, falls rear easy generation bale broken.
Summary of the invention
Given this, the invention provides a kind of polyethylene film, this film has good heat sealability, solves the problem that " PE melts out " easily appears in existing heat-seal land, which thereby enhances the withstand voltage properties of Self stand bag prepared therefrom and resistance to drop performance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of polyethylene film, and it comprises successively: composite bed, intermediate layer and hot sealing layer.The Thickness Ratio of above-mentioned composite bed, intermediate layer and hot sealing layer is 1:1.5 ~ 3:1.
Described composite bed comprises: the metallocene PE of 60wt% ~ 70wt% and the low density polyethylene (LDPE) of 30wt% ~ 40wt%.Wherein, the trade mark of metallocene PE (m-LLDPE) is Tao Shi 5100G, and its physical parameter is as follows: melt index 0.85g/10min, density 0.920g/cm
3, Vicat softening point 105 DEG C, fusing point 124 DEG C.The trade mark of low density polyethylene (LDPE) (LDPE) is Exxon Mobil 150BW, and its physical parameter is as follows: melt index 0.75g/10min, density 0.923g/cm
3, Vicat softening point 95 DEG C, fusing point 109 DEG C.
Described intermediate layer comprises: the low density polyethylene (LDPE) of the high density polyethylene (HDPE) of 30wt% ~ 35wt%, the linear low density polyethylene (LLDPE) of 30wt% ~ 35wt% and 30wt% ~ 35wt%.Wherein, the trade mark of high density polyethylene (HDPE) (HDPE) is Exxon Mobil HTA108, and its physical parameter is as follows: melt index 0.7g/10min, density 0.961g/cm
3, Vicat softening point 129 DEG C, fusing point 135 DEG C.The trade mark of linear low density polyethylene (LLDPE) (LLDPE) is Tao Shi 2045G, and its physical parameter is as follows: melt index 1.0g/10min, density 0.922g/cm
3, Vicat softening point 104 DEG C, fusing point 122 DEG C.The trade mark of low density polyethylene (LDPE) is identical with the trade mark of low density polyethylene (LDPE) in above-mentioned composite bed.Preferably, this intermediate layer also comprises the fluoride auxiliary agent of 0.2wt% ~ 0.3wt%.The trade mark of this fluoride auxiliary agent is peace color matching 100991-K, and its active constituent content is 5%.
Described hot sealing layer comprises: the low density polyethylene (LDPE) of 33wt% ~ 35wt%, the enhanced polyethylene resin of 63wt% ~ 65wt%, the slipping agent of 0.5wt% ~ 0.8wt% and the opening agent of 1.3wt% ~ 2.0wt%.Wherein, the trade mark of low density polyethylene (LDPE) is the same.The trade mark of enhanced polyethylene resin is Tao Shi 5500G, and its physical parameter is as follows: melt index 1.5g/10min, density 0.914g/cm
3.The trade mark of slipping agent is peace color matching 10090-K, and active ingredient is erucyl amide, and active constituent content is 5.0%.The trade mark of opening agent is Beijing Aaron's intelligence connection AB-20LD, and active ingredient is silica, and active constituent content is 20%.
Present invention also offers a kind of preparation method of polyethylene film, it is by shaping for resin raw material coextrusion blow at 120 DEG C ~ 160 DEG C of above-mentioned composite bed, intermediate layer and hot sealing layer.
Present invention also offers a kind of Self stand bag laminated film, it comprises successively: polyester layer, polyester aluminium coated and above-mentioned film layer.Wherein, polyester aluminium coated can ensure high density and the deflection of Self stand bag.The preparation method of above-mentioned laminated film is as follows: carry out sided corona treatment to the composite bed of polyethylene film; Adopt dry type composite algorithm, use adhesive successively polyester layer, polyester aluminium coated, film layer to be carried out compound.
Present invention also offers a kind of Self stand bag, its bag prepared by above-mentioned laminated film, and seal with bag the kettle mouth two parts be connected and form.
The present invention compared with prior art tool has the following advantages:
1, polyethylene film provided by the invention (PE film), this film comprises composite bed, intermediate layer and hot sealing layer successively.Wherein, composite bed comprises: the metallocene PE of 60wt% ~ 70wt% and the low density polyethylene (LDPE) of 30wt% ~ 40wt%; Intermediate layer comprises: the low density polyethylene (LDPE) of the high density polyethylene (HDPE) of 30wt% ~ 35wt%, the linear low density polyethylene (LLDPE) of 30wt% ~ 35wt%, 30wt% ~ 35wt% and the fluoride auxiliary agent of 0.2wt% ~ 0.3wt%; Hot sealing layer comprises: the low density polyethylene (LDPE) of 33wt% ~ 35wt%, the enhanced polyethylene resin of 63wt% ~ 65wt%, the slipping agent of 0.5wt% ~ 0.8wt% and the opening agent of 1.3wt% ~ 2.0wt%.Composite bed is for ensureing the good combined strength bination of PE film and other films, and intermediate layer is for ensureing that itself and composite bed, hot sealing layer have comparatively high bond strength, and hot sealing layer has comparatively high adhesion and heat seal strength after being used for that PE film is sealed.The object of said components is the fusing point of each layer on PE film is lowered from composite bed in gradient gradually to hot sealing layer direction, first melting after hot sealing layer reaches heat-sealing temperature during heat-sealing, and the intermediate layer in outside, composite bed do not reach corresponding fusing point, thus effectively avoid the generation of " PE melts out ".Therefore, adopt PE film provided by the invention, have excellent heat sealability, after ensureing heat-sealing, material has good sealing simultaneously.
2, laminated film provided by the invention, this laminated film comprises polyester layer, polyester aluminium coated and above-mentioned PE layer successively.Polyester layer has good printing adaptability and dimensional stability, polyester aluminium coated has good barrier, the shelf-life of effective guarantee food, its high density performance imparts the tear resistance of the Self stand bag excellence prepared by this laminated film and good deflection simultaneously.PE layer is then for ensureing that laminated film has excellent heat sealability, and after heat-sealing, adaptation is high, and then ensures the anti-leakage of laminated film and the resistance to property fallen.Therefore, laminated film provided by the invention has good mechanical property, heat-sealing adaptation and heat seal strength, laminated film provided by the invention is adopted to pack the product that help digestion soon, the shelf-life of product can be ensured further, make to pack rear product not easy-to-leak liquid simultaneously, clashed into and not easily bale broken occurred after staggering along, avoiding " PE melts out " and " the extremely wrinkling " phenomenon at hot blast position simultaneously, greatly improve product quality.
Detailed description of the invention
In order to understand the present invention further, below in conjunction with specific embodiment, the present invention is described in detail.
The embodiment of the invention discloses a kind of polyethylene film, it comprises successively: composite bed, intermediate layer and hot sealing layer.
Wherein, composite bed comprises: the metallocene PE (m-LLDPE) of 60wt% ~ 70wt% and the low density polyethylene (LDPE) (LDPE) of 30wt% ~ 40wt%.Intermediate layer comprises: the high density polyethylene (HDPE) (HDPE) of 30wt% ~ 35wt%, the linear low density polyethylene (LLDPE) (LLDPE) of 30wt% ~ 35wt%, the low density polyethylene (LDPE) (LDPE) of 30wt% ~ 35wt% and the fluoride auxiliary agent of 0.2wt% ~ 0.3wt%.Hot sealing layer comprises: the low density polyethylene (LDPE) (LDPE) of 33wt% ~ 35wt%, the enhanced polyethylene resin of 63wt% ~ 65wt%, the slipping agent of 0.5wt% ~ 0.8wt% and the opening agent of 1.3wt% ~ 2.0wt%.The Thickness Ratio of above-mentioned composite bed, intermediate layer and hot sealing layer is 1:1.5 ~ 3:1.
Due to the limited strength of polyethylene film, therefore also need itself and other film to carry out compound under normal circumstances.Above-mentioned composite bed is one deck that PE film and other films carry out compound, and wherein m-LLDPE has excellent antifouling property, its 5100G preferably adopting Dow Chemical to produce.LDPE has excellent processing characteristics, its 150BW preferably adopting Exxon Mobil Corporation to produce.
Intermediate layer is the articulamentum of composite bed and hot sealing layer, and it has the fusing point lower than composite bed.Wherein HDPE has fabulous impact resistance and stability, can improve the withstand voltage of product and impact resistance, its HTA108 preferably adopting Exxon Mobil Corporation to produce.LLDPE has higher percentage elongation, can improve the hot strength of PE film, its 2045G preferably adopting Dow Chemical to produce.The 100991-K that fluoride auxiliary agent preferably adopts peace color matching company to produce.The 150BW that LDPE in intermediate layer also preferably adopts Exxon Mobil Corporation to produce.
Hot sealing layer is the one deck directly contacted with pack content, and it has the fusing point lower than intermediate layer.Wherein enhanced polyethylene resin has easy processing, heat-sealing temperature is low, lear energy is strong advantage, its 5500G preferably adopting Dow Chemical to produce.The 150BW that LDPE in hot sealing layer also preferably adopts Exxon Mobil Corporation to produce.The 10090-K that color matching company produces preferably pacified by slipping agent.The AB-20LD that opening agent preferred Beijing Aaron Zhi Lian company produces.
Accordingly, present invention also offers a kind of preparation method of above-mentioned PE film, it is by shaping for resin raw material coextrusion blow at 120 DEG C ~ 160 DEG C of above-mentioned composite bed, intermediate layer and hot sealing layer.
Composite bed resin, intermediate layer resin and hot sealing layer resin preferably add in three barrels of extruder by the present invention respectively, and three sections of heating are carried out to each barrel, preferably arranging each barrel one section of heating-up temperature is 120 DEG C ~ 130 DEG C, two sections of heating-up temperatures are 130 DEG C ~ 140 DEG C, three sections of heating-up temperatures are 140 DEG C ~ 150 DEG C, arranging die head temperature is 140 DEG C ~ 160 DEG C, controls melt extrusion pressure and is less than 45Mpa.Polymer particle in above-mentioned three barrels is through extruder melting and form pipe, compressed air is gone out from extruder die head center after being stretched by pipe, pipe is blown into blister film, blister film is obtained the PE film comprising composite bed, intermediate layer and hot sealing layer successively simultaneously through vane cooling air cooling and shaping.
Adopt technique scheme, the three-decker of PE film is made to have stepped three fusing points reduced gradually from composite bed to hot sealing layer direction, first melting after hot sealing layer reaches heat-sealing temperature during heat-sealing, and the intermediate layer in outside, composite bed do not reach corresponding fusing point, thus effectively avoid the generation of " PE melts out ".
Present invention also offers a kind of Self stand bag laminated film by above-mentioned PE film preparation, it comprises successively: polyester layer (PET), polyester aluminium coated (VMPET) and above-mentioned PE layer.The composite bed of VMPET and PE film contacts.Wherein, polyester aluminium coated has good barrier, can ensure high density and the deflection of obtained Self stand bag simultaneously.
Accordingly, the preparation method of above-mentioned laminated film is as follows: carry out sided corona treatment to the composite bed of polyethylene film, the wetting tension of this layer is made to reach more than 40 dyne, the mode of one side corona or two-sided corona can be adopted, make the conjugation (i.e. peel strength) of PE film and other film better; Successively PET, VMPET, PE are carried out dry type compound, in compound, make the composite bed of PE relative with VMPET, after compound, just obtain required laminated film.
Finally, present invention also offers a kind of Self stand bag, its bag prepared by above-mentioned laminated film, and seal with bag the kettle mouth two parts be connected and form.Its manufacturing process is identical with processing method well known in the art, does not repeat them here.
In following examples, m-LLDPE is the 5100G that Dow Chemical produces, and LDPE is the 150BW that Exxon Mobil Corporation produces.HDPE is the HTA108 that Exxon Mobil Corporation produces, and LLDPE is the 2045G that Dow Chemical produces, and fluoride auxiliary agent is the 100991-K that peace color matching company produces.Enhanced polyethylene resin is the 5500G that Dow Chemical produces.Slipping agent is the 10090-K that peace color matching company produces.Opening agent is the AB-20LD that Beijing Aaron Zhi Lian company produces.
Embodiment 1, preparation PE film.
In three barrels of coextrusion machine, add composite bed resin raw material, intermediate layer resin raw material and hot sealing layer resin raw material respectively, each resin raw material formula is as follows:
The LDPE of m-LLDPE and 30wt% of composite bed: 70wt%.
The fluoride auxiliary agent of LDPE and 0.3wt% of LLDPE, 34.7wt% of HDPE, 30wt% of intermediate layer: 35wt%.
The enhanced polyethylene resin of LDPE, 65wt% of hot sealing layer: 33wt%, the slipping agent of 0.7wt% and the opening agent of 1.3wt%.
Polymer particle in above-mentioned three barrels is through extruder melting and form pipe, goes out compressed air, pipe is blown into blister film, blister film is obtained PE film through vane cooling air cooling and shaping simultaneously after being stretched by pipe from extruder die head center.
Embodiment 2, preparation PE film.
Each resin raw material formula is as follows: the LDPE of m-LLDPE and 40wt% of composite bed: 60wt%.
The fluoride auxiliary agent of LDPE and 0.2wt% of LLDPE, 35wt% of HDPE, 34.8wt% of intermediate layer: 30wt%.
The enhanced polyethylene resin of LDPE, 63wt% of hot sealing layer: 34.2wt%, the slipping agent of 0.8wt% and the opening agent of 2.0wt%.All the other are with embodiment 1.
Embodiment 3, preparation PE film.
Each resin raw material formula is as follows: the LDPE of m-LLDPE and 33.3wt% of composite bed: 66.7wt%.
The fluoride auxiliary agent of LDPE and 0.28wt% of LLDPE, 33.24wt% of HDPE, 33.24wt% of intermediate layer: 33.24wt%.
The enhanced polyethylene resin of LDPE, 64.85wt% of hot sealing layer: 32.43wt%, the slipping agent of 0.78wt% and the opening agent of 1.94wt%.All the other are with embodiment 1.
PE film obtained for embodiment 1 ~ 3 is carried out heat sealability and Mechanics Performance Testing, and test result refers to table 1.
Embodiment 4, prepares Self stand bag
First, the PE film composite bed of embodiment 1 is carried out sided corona treatment.Then, successively PET, VMPET, PE are carried out dry type compound, in compound, make the composite bed of PE relative with VMPET, after compound, just obtain required laminated film.Then, this laminated film is made the bag of Self stand bag.Finally, Hu Zui and bag are sealed, obtained Self stand bag, observes heat-seal land; Then filling 500g water, carries out fall-down test and withstand voltage test, and its test result refers to table 2.
Embodiment 5, prepares Self stand bag
The raw material selected is the PE film of embodiment 2, and all the other are with embodiment 4.
Embodiment 6, prepares Self stand bag
The raw material selected is the PE film of embodiment 3, and all the other are with embodiment 4.
Shown in the above is only the preferred embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art; in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Table 1
Table 2
Claims (5)
1. a polyethylene film, it comprises composite bed superimposed successively, intermediate layer and hot sealing layer, it is characterized in that,
Described composite bed comprises: the metallocene PE of 60wt% ~ 70wt% and the low density polyethylene (LDPE) of 30wt% ~ 40wt%;
Described intermediate layer comprises: the low density polyethylene (LDPE) of the high density polyethylene (HDPE) of 30wt% ~ 35wt%, the linear low density polyethylene (LLDPE) of 30wt% ~ 35wt% and 30wt% ~ 35wt%;
Described hot sealing layer comprises: the low density polyethylene (LDPE) of 33wt% ~ 35wt%, the enhanced polyethylene resin of 63wt% ~ 65wt%, the slipping agent of 0.5wt% ~ 0.8wt% and the opening agent of 1.3wt% ~ 2.0wt%;
Wherein, the fusing point of composite bed is higher than the fusing point in intermediate layer, and the fusing point in intermediate layer is higher than the fusing point of hot sealing layer.
2. polyethylene film as claimed in claim 1, is characterized in that: the Thickness Ratio of described composite bed, intermediate layer and hot sealing layer is 1:1.5 ~ 3:1.
3. polyethylene film as claimed in claim 1, is characterized in that: described intermediate layer also comprises the fluoride auxiliary agent of 0.2wt% ~ 0.3wt%.
4. a Self stand bag laminated film, is characterized in that: it comprises polyester layer, polyester aluminium coated and polyethylene film as described in any one of claims 1 to 3 successively, and wherein the composite bed of polyethylene film contacts with polyester aluminium coated.
5. a Self stand bag, is characterized in that: its bag prepared by laminated film as claimed in claim 4, and seals with bag the kettle mouth two parts be connected and form.
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Cited By (12)
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| CN106496643A (en) * | 2016-11-02 | 2017-03-15 | 黄山永新股份有限公司 | A kind of self-support suction nozzle bag and its production method |
| CN108001004A (en) * | 2017-11-30 | 2018-05-08 | 上海紫江彩印包装有限公司 | Photosensitive material is packed for polyolefin black film, its preparation method and includes its composite membrane |
| CN108430633A (en) * | 2015-12-23 | 2018-08-21 | 赛多利斯斯泰迪姆埃赛普蒂克斯公司 | The method for manufacturing sealing container |
| CN108943949A (en) * | 2018-07-27 | 2018-12-07 | 黄山永新股份有限公司 | PE film and preparation method thereof is easily opened at a kind of heat-sealing interface |
| CN109291578A (en) * | 2018-09-12 | 2019-02-01 | 芮珉翔 | A kind of polyolefin PE film that can be sealed with HIPS |
| CN110239179A (en) * | 2019-06-21 | 2019-09-17 | 黄山永新股份有限公司 | A kind of water-mist-proof polyethylene film, composite membrane and preparation method |
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| CN112659702A (en) * | 2020-12-22 | 2021-04-16 | 黄山永新股份有限公司 | High-humidity-resistance polyethylene film and production method thereof |
| CN112959774A (en) * | 2021-03-29 | 2021-06-15 | 江阴诚公转印包装材料有限公司 | High-barrier microwave special packaging film and preparation method thereof |
| CN113263808A (en) * | 2021-06-29 | 2021-08-17 | 江苏博生医用新材料股份有限公司 | Disposable biological membrane and preparation method and application thereof |
| CN113602666A (en) * | 2021-08-13 | 2021-11-05 | 上海华悦包装制品有限公司 | Durable standing bag |
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| CN108359170A (en) * | 2018-02-26 | 2018-08-03 | 云南名博包装印刷有限公司 | A kind of multi-layer co-extruded polyethylene film and preparation method thereof |
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| CN108430633A (en) * | 2015-12-23 | 2018-08-21 | 赛多利斯斯泰迪姆埃赛普蒂克斯公司 | The method for manufacturing sealing container |
| CN108430633B (en) * | 2015-12-23 | 2021-06-01 | 赛多利斯斯泰迪姆埃赛普蒂克斯公司 | Method for manufacturing sealed container |
| CN106496643A (en) * | 2016-11-02 | 2017-03-15 | 黄山永新股份有限公司 | A kind of self-support suction nozzle bag and its production method |
| CN108001004B (en) * | 2017-11-30 | 2020-04-03 | 上海紫江彩印包装有限公司 | Polyolefin black film for packaging photosensitive material, preparation method thereof and composite film comprising same |
| CN108001004A (en) * | 2017-11-30 | 2018-05-08 | 上海紫江彩印包装有限公司 | Photosensitive material is packed for polyolefin black film, its preparation method and includes its composite membrane |
| CN108943949A (en) * | 2018-07-27 | 2018-12-07 | 黄山永新股份有限公司 | PE film and preparation method thereof is easily opened at a kind of heat-sealing interface |
| CN109291578A (en) * | 2018-09-12 | 2019-02-01 | 芮珉翔 | A kind of polyolefin PE film that can be sealed with HIPS |
| CN110370764A (en) * | 2019-04-15 | 2019-10-25 | 北京市永生运佳包装材料有限公司 | A kind of PE base material film and preparation method thereof |
| CN110239179A (en) * | 2019-06-21 | 2019-09-17 | 黄山永新股份有限公司 | A kind of water-mist-proof polyethylene film, composite membrane and preparation method |
| CN112659703A (en) * | 2020-12-22 | 2021-04-16 | 黄山永新股份有限公司 | Flexible packaging material of circuit board printing ink and preparation method |
| CN112659702A (en) * | 2020-12-22 | 2021-04-16 | 黄山永新股份有限公司 | High-humidity-resistance polyethylene film and production method thereof |
| CN112959774A (en) * | 2021-03-29 | 2021-06-15 | 江阴诚公转印包装材料有限公司 | High-barrier microwave special packaging film and preparation method thereof |
| CN113263808A (en) * | 2021-06-29 | 2021-08-17 | 江苏博生医用新材料股份有限公司 | Disposable biological membrane and preparation method and application thereof |
| CN113602666A (en) * | 2021-08-13 | 2021-11-05 | 上海华悦包装制品有限公司 | Durable standing bag |
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| CN104924712B (en) | 2017-04-12 |
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Effective date of registration: 20180601 Address after: 050200 No. 65 Changsheng street, Luquan Development Zone, Shijiazhuang, Hebei. Patentee after: Hebei Novel Packing Co., Ltd. Address before: 245900 No. 188 Huizhou East Road, Huizhou District, Huangshan City, Anhui. Patentee before: Yongxin Co., Ltd., Huangshan City |
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