CN103009747B - A kind of dehumidifying moisture-proof package film and preparation method thereof - Google Patents
A kind of dehumidifying moisture-proof package film and preparation method thereof Download PDFInfo
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- CN103009747B CN103009747B CN201210567618.7A CN201210567618A CN103009747B CN 103009747 B CN103009747 B CN 103009747B CN 201210567618 A CN201210567618 A CN 201210567618A CN 103009747 B CN103009747 B CN 103009747B
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Abstract
The invention provides a kind of dehumidifying moisture-proof package film, comprise except wet layer (3), be positioned at internal layer, comprise corona resin bed (4), dehumidification function layer (5) and heat sealing resin layer (6); Damp-proof layer (1), is positioned at skin, and described removing between wet layer (3) is bonded together by adhesive linkage (2); Wherein, described corona resin bed (4) is connected with described adhesive linkage (2) through the side of sided corona treatment, and opposite side is described dehumidification function layer (5); Described dehumidification function layer (5) opposite side is described heat sealing resin layer (6).Present invention also offers a kind of preparation method of the moisture-proof package film that dehumidifies, by described damp-proof layer (1) material applies described adhesive linkage (2) material, invest on described adhesive linkage (2) material by described except wet layer (3) material spreads, the cooling curing i.e. dehumidifying moisture-proof package film of obtained a kind of sandwich construction.
Description
Technical field
The present invention relates to a kind of dehumidifying moisture-proof package film and preparation method thereof, particularly a kind of food, medicine dehumidifying moisture-proof package film and preparation method thereof.
Background technology
The development of food, Key works Drug packing to raising intensity, barrier (water proof vapour, resistance oxygen, oil resistance), reduce consumption (wall thickness), environmental protection, the aspect development such as multi-functional.For guaranteeing the safety of food, Key works Drug packing, packaging material must possess high water vapor barrier property.Packing film can be divided into four grades about the vapor transfer rate pointed out in the explanation of damp-prrof packing according to packing film by standard GB/T/T 5048: under temperature 40 ± 1 DEG C, relative humidity 80% ~ 92% condition, vapor transfer rate < 2g/ (m
2film 24h) is called 1 grade of damp-prrof packing film; Under temperature 40 ± 1 DEG C, relative humidity 80% ~ 92% condition, vapor transfer rate < 5g/ (m
2film 24h) is called 2 grades of damp-prrof packing films; Under temperature 40 ± 1 DEG C, relative humidity 80% ~ 92% condition, vapor transfer rate < 15g/ (m
2film 24h) is called 3 grades of damp-prrof packing films; Under temperature 40 ± 1 DEG C, relative humidity 80% ~ 92% condition, vapor transfer rate>=15g/ (m
2film 24h) does not then belong to damp-prrof packing film.
But, the high water vapor barrier property of simple pursuit can only reduce moisture in external environment and enter the speed in packaging, and cannot remove in the steam of content self absorption and package handling and residue in steam in packaging, so still potential safety hazard is existed to food, medicine.
At present, on market, the normal anti-blushing agent that adopts is used for air and the absorption of content moisture in packaging bag, shelf life of products is extended with this, but so both add packaging process and corresponding cost, also there is the hidden danger that children eat by mistake, in addition anti-blushing agent is also easy causes food and drug safety problem because revealing, and it also cannot be implemented because of space constraint in divided dose forms fields such as medicine bubble-caps.
For the removal problem of air moisture and content moisture in food, Medicine Package Bag, for the exploitation of the packaging material dehumidification function in this field by necessary property.
Summary of the invention
Content self adsorption moisture and packaging cannot be removed for high water vapor rejection packing film on market
Residual steam in operation, and anti-blushing agent uses the problems such as limited in divided dose forms fields such as medicine bubble-caps, the invention provides a kind of dehumidifying moisture-proof package film and preparation method thereof, by described bonding except wet layer 3 and described damp-proof layer 1, realize internally dehumidifying and externally moistureproof abundant combination, thus effectively improve food, drug safety, extend the shelf-life.
The invention provides a kind of dehumidifying moisture-proof package film, comprising except wet layer 3, be positioned at internal layer, is sandwich construction, comprises corona resin bed 4, dehumidification function layer 5 and heat sealing resin layer 6; Damp-proof layer 1, is positioned at skin, and described removing between wet layer 3 is bonded together by adhesive linkage 2; Wherein, described corona resin bed 4 is connected with described adhesive linkage 2 through the side of sided corona treatment, and opposite side is described dehumidification function layer 5; Described dehumidification function layer 5 opposite side is described heat sealing resin layer 6.
Preferably, described dehumidifying moisture-proof package film, wherein said adhesive linkage 2 material is one-pack type polyurethane, or multicomponent type polyurethane.
Preferably, described dehumidifying moisture-proof package film, wherein said damp-proof layer 1 material is the one in the following stated material: Biaxially oriented polypropylene, polyvinylidene chloride, PETG-polyester aluminum-plating film composite material, PETG-aluminum film compounded material or orientation stretching polypropylene-polyester aluminum-plating film composite material.
Preferably, described dehumidifying moisture-proof package film, wherein said corona resin bed 4 material is matrix material, and described matrix material is the one in following material: low density polyethylene (LDPE), polypropylene, PETG or polyvinyl chloride.
Preferably, described dehumidifying moisture-proof package film, wherein said dehumidification function layer 5 material is the matrix material being equipped with dehumidifying particulate.
Preferably, described dehumidifying moisture-proof package film, wherein said dehumidifying particulate is a kind of in polyacrylate, the polyacrylic acid derivative not comprising polyacrylate or polychlorostyrene trimethylammonioethyl acrylate derivative or their mixture or copolymer.
Preferably, described dehumidifying moisture-proof package film, wherein said heat sealing resin layer 6 material is low density polyethylene (LDPE).
Present invention also offers a kind of preparation method of the moisture-proof package film that dehumidifies, wherein said damp-proof layer 1 material applies described adhesive linkage 2 material, invest on described adhesive linkage 2 material by described except wet layer 3 material spreads, cooling curing, wherein said adhesive linkage 2 material coating weight is 0.2-9.9g/m
2.
Preferably, the preparation method of described dehumidifying moisture-proof package film, wherein said dehumidification function layer 5 material be by by dehumidifying particulate and matrix material blended, extrude, roll obtained, wherein said dehumidifying particulate and described matrix material proportioning are 0.5-20:70-90; It is described except wet layer 3 is by obtaining described corona resin bed 4, described dehumidification function layer 5 and described heat sealing resin layer 6 co-extrusion, calendering.
Dehumidifying moisture-proof package film disclosed by the invention and preparation method thereof by by except wet stock with barrier material compound sticking realizes food, medicine dehumidifies, protection against the tide two-way function, improve food, Key works Drug packing security, extend the shelf-life.
Accompanying drawing explanation
Fig. 1 is dehumidifying moisture-proof package film structural representation of the present invention;
Fig. 2 is dehumidifying Rotating fields schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
Food, pharmaceutical packing have high requirement for the obstruct of steam, and dehumidifying moisture-proof package film can intercept the infiltration of steam in extraneous air, can adsorb steam in packaging bag again, can realize food, medicine dehumidifying, moistureproof two-way function.
Embodiment 1
As shown in Figure 1 and Figure 2, the invention provides a kind of dehumidifying moisture-proof package film, comprising except wet layer 3, be positioned at internal layer, is sandwich construction, comprises corona resin bed 4, dehumidification function layer 5 and heat sealing resin layer 6; Damp-proof layer 1, is positioned at skin, and described removing between wet layer 3 is bonded together by adhesive linkage 2; Wherein, described corona resin bed 4 is connected with described adhesive linkage 2 through the side of sided corona treatment, and opposite side is described dehumidification function layer 5; Described dehumidification function layer 5 opposite side is described heat sealing resin layer 6.Wherein said adhesive linkage 2 material is one-pack type polyurethane; Described damp-proof layer 1 material is polyvinylidene chloride.Described corona resin bed 4 material is matrix material, and described matrix material is PETG.Described dehumidification function layer 5 material is the matrix material being equipped with dehumidifying particulate.Described dehumidifying particulate is polyacrylate.Described heat sealing resin layer 6 material is low density polyethylene (LDPE).Present invention also offers a kind of preparation method of the moisture-proof package film that dehumidifies, wherein said damp-proof layer 1 material applies described adhesive linkage 2 material, invest on described adhesive linkage 2 material by described except wet layer 3 material spreads, cooling curing, wherein said adhesive linkage 2 material coating weight is 0.3g/m
2.Described dehumidification function layer 5 material be by by 8% dehumidifying particulate and matrix material blended, extrude obtained; It is described except wet layer 3 is by obtaining described corona resin bed 4, described dehumidification function layer 5 and described heat sealing resin layer 6 material co-extrusion.
Embodiment 2
As shown in Figure 1 and Figure 2, the invention provides a kind of dehumidifying moisture-proof package film, comprising except wet layer 3, be positioned at internal layer, is sandwich construction, comprises corona resin bed 4, dehumidification function layer 5 and heat sealing resin layer 6; Damp-proof layer 1, is positioned at skin, and described removing between wet layer 3 is bonded together by adhesive linkage 2; Wherein, described corona resin bed 4 is connected with described adhesive linkage 2 through the side of sided corona treatment, and opposite side is described dehumidification function layer 5; Described dehumidification function layer 5 opposite side is described heat sealing resin layer 6.Wherein said adhesive linkage 2 material is many component-types polyurethane; Described damp-proof layer 1 material is PETG-aluminum film compounded material.Described corona resin bed 4 material is matrix material, and described matrix material is polyvinyl chloride.Described dehumidification function layer 5 material is the matrix material being equipped with dehumidifying particulate.Described dehumidifying particulate is polyacrylate.Described heat sealing resin layer 6 material is low density polyethylene (LDPE).Present invention also offers a kind of preparation method of the moisture-proof package film that dehumidifies, wherein said damp-proof layer 1 material applies described adhesive linkage 2 material, invest on described adhesive linkage 2 material by described except wet layer 3 material spreads, cooling curing, wherein said adhesive linkage 2 material coating weight is 0.8g/m
2.Described dehumidification function layer 5 material be by by 5% dehumidifying particulate and matrix material blended, extrude obtained; It is described except wet layer 3 is by obtaining described corona resin bed 4, described dehumidification function layer 5 and described heat sealing resin layer 6 material co-extrusion.
Dehumidifying moisture-proof package film disclosed by the invention has described damp-proof layer 1 and described except wet layer 3 simultaneously.The moisture being present in moisture in bag in air and content self absorption after packaging through described heat sealing resin layer 6, will arrive described dehumidification function layer 5, is then adsorbed.The present invention is by the external protection against the tide of described damp-proof layer 1 and describedly make to be positioned at packaging shelf life of products more for a long time to interior dehumidifying except wet layer 3, is conducive to reducing costs.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (7)
1. dehumidify a moisture-proof package film, it is characterized in that, comprise
Except wet layer (3), being positioned at internal layer, is sandwich construction, comprises corona resin bed (4), dehumidification function layer (5) and heat sealing resin layer (6);
Damp-proof layer (1), be positioned at skin, and described removing between wet layer (3) is bonded together by adhesive linkage (2), described damp-proof layer (1) material is the one in the following stated material: Biaxially oriented polypropylene, polyvinylidene chloride, PETG-polyester aluminum-plating film composite material, PETG-aluminum film compounded material or orientation stretching polypropylene-polyester aluminum-plating film composite material;
Wherein, described corona resin bed (4) is connected with described adhesive linkage (2) through the side of sided corona treatment, and opposite side is described dehumidification function layer (5); Described dehumidification function layer (5) opposite side is described heat sealing resin layer (6).
2. dehumidifying moisture-proof package film according to claim 1, is characterized in that, described adhesive linkage (2) material is one-pack type polyurethane, or multicomponent type polyurethane.
3. dehumidifying moisture-proof package film according to claim 1, it is characterized in that, described corona resin bed (4) material is matrix material, and described matrix material is the one in following material: low density polyethylene (LDPE), polypropylene, PETG or polyvinyl chloride.
4. dehumidifying moisture-proof package film according to claim 3, is characterized in that, described dehumidification function layer (5) material is the matrix material being equipped with dehumidifying particulate.
5. dehumidifying moisture-proof package film according to claim 4, it is characterized in that, described dehumidifying particulate is the one in polyacrylic acid derivative, or be mixture or the copolymer of polyacrylate and polychlorostyrene trimethylammonioethyl acrylate derivative, or be polyacrylate with except polyacrylate, the mixture of the polyacrylic acid derivative outside polychlorostyrene trimethylammonioethyl acrylate derivative or copolymer, or be polychlorostyrene trimethylammonioethyl acrylate derivative with except polyacrylate, the mixture of the polyacrylic acid derivative outside polychlorostyrene trimethylammonioethyl acrylate derivative or copolymer, or be polyacrylate and polychlorostyrene trimethylammonioethyl acrylate derivative with except polyacrylate, the mixture of the polyacrylic acid derivative outside polychlorostyrene trimethylammonioethyl acrylate derivative or copolymer.
6. dehumidifying moisture-proof package film according to claim 1, is characterized in that, described heat sealing resin layer (6) material is low density polyethylene (LDPE).
7. the preparation method of the moisture-proof package film that dehumidifies, it is characterized in that, by will dehumidify particulate and matrix material blended, extrude, the obtained dehumidification function layer (5) of calendering, wherein, described dehumidification function layer (5) material is the matrix material being equipped with dehumidifying particulate, described matrix material is the one in following material: low density polyethylene (LDPE), polypropylene, PETG or polyvinyl chloride, described dehumidifying particulate is the one in polyacrylic acid derivative, or be mixture or the copolymer of polyacrylate and polychlorostyrene trimethylammonioethyl acrylate derivative, or be polyacrylate with except polyacrylate, the mixture of the polyacrylic acid derivative outside polychlorostyrene trimethylammonioethyl acrylate derivative or copolymer, or be polychlorostyrene trimethylammonioethyl acrylate derivative with except polyacrylate, the mixture of the polyacrylic acid derivative outside polychlorostyrene trimethylammonioethyl acrylate derivative or copolymer, or be polyacrylate and polychlorostyrene trimethylammonioethyl acrylate derivative with except polyacrylate, the mixture of the polyacrylic acid derivative outside polychlorostyrene trimethylammonioethyl acrylate derivative or copolymer, described dehumidifying particle mass mark is 0.7%-8% or described dehumidifying particulate and described matrix material proportioning is 20:70 or 20:90,
By corona resin bed (4), dehumidification function layer (5) and heat sealing resin layer (6) co-extrusion, calendering are obtained except wet layer (3); Described corona resin bed (4) is connected with adhesive linkage (2) through the side of sided corona treatment, and opposite side is described dehumidification function layer (5); Described dehumidification function layer (5) opposite side is described heat sealing resin layer (6);
By described except wet layer (3) paving invest be coated with adhesive linkage (2) damp-proof layer (1) on, cooling curing, wherein, described adhesive linkage (2) material is one-pack type polyurethane, or multicomponent type polyurethane, described adhesive linkage (2) material coating weight is 0.2-9.9g/m
2.
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| CN201210567618.7A CN103009747B (en) | 2012-12-24 | 2012-12-24 | A kind of dehumidifying moisture-proof package film and preparation method thereof |
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| CN201210567618.7A CN103009747B (en) | 2012-12-24 | 2012-12-24 | A kind of dehumidifying moisture-proof package film and preparation method thereof |
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| CN103009747B true CN103009747B (en) | 2015-07-29 |
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| CN104163026A (en) * | 2014-07-24 | 2014-11-26 | 桐城市福润包装材料有限公司 | Moistureproof packaging material |
| CN106189916A (en) * | 2016-07-08 | 2016-12-07 | 姚华鹏 | Long-acting damp-proof blister packaging materials |
| CN106633288A (en) * | 2016-11-30 | 2017-05-10 | 四川旭华制药有限公司 | A medicinal package material |
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| US8003179B2 (en) * | 2002-06-20 | 2011-08-23 | Alcan Packaging Flexible France | Films having a desiccant material incorporated therein and methods of use and manufacture |
| CN102675708B (en) * | 2011-03-11 | 2014-11-05 | 株式会社宝石葩 | Resin composition for water absorbing film, water absorbing film for packing, and manufacturing method thereof |
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Effective date of registration: 20151130 Address after: 215211 Wujiang City, Suzhou province Fen town to show Road No. 8 Patentee after: Suzhou Haishun Packaging Material Co., Ltd. Patentee after: Shanghai Haishun New Pharmaceutical Packaging Co., Ltd. Address before: 215211 Wujiang City, Suzhou province Fen town to show Road No. 8 Patentee before: Suzhou Haishun Packaging Material Co., Ltd. |