CN104029438B - A kind of food package film - Google Patents
A kind of food package film Download PDFInfo
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- CN104029438B CN104029438B CN201410260597.3A CN201410260597A CN104029438B CN 104029438 B CN104029438 B CN 104029438B CN 201410260597 A CN201410260597 A CN 201410260597A CN 104029438 B CN104029438 B CN 104029438B
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Abstract
The present invention proposes a kind of food package film, comprise each layer composite bed of upper and lower compound, the quantitative of this packaging film is 94.1-130.95g/m2, longitudinal and horizontal tensile strength >=10kN/m, longitudinal and horizontal tearability >=500mN, transparency is zero, smoothness >=100s; Wherein each layer composite bed is followed successively by up and down; Adopt the ground floor composite bed of PET film; Adopt the second layer composite bed of aluminium foil, the thickness of this aluminium foil is 200-250 μm; Adopt the third layer composite bed of PET film; The ground floor composite bed being positioned at the bottom surface of third layer composite bed is thermosol glue-line; Above-mentioned ground floor composite bed and second layer composite bed, between second layer composite bed and third layer composite bed, applying glue oxidant layer is set respectively.A kind of food package film of the present invention, for solving the die cut out-of-flatness caused due to packaging film thickness great drought in prior art and the problem that firing rate is excessively slow in packaging process; In addition, the present invention can provide the packaging film of more high-stiffness, can realize easy stripping, avoids packaging film layering in the process of tearing.
Description
Technical field
The present invention relates to packaging film field, particularly relate to a kind of food package film.
Background technology
At present, lollipop packaging is all be wound around the kink blanching of parcel bottom to form, not only unhygienic, sealing is not only poor but also not heat insulation, and destroy again packaging film can embody print moulded aesthetic feeling simultaneously also because be warm, the reason such as humidity, easily sticky sugar, the reasons such as thermal insulation, sealing are poor, and the shelf-life is short, usually occur that packaging film glues sugar, is difficult to open the phenomenon taken food, not fully up to expectations.
For above problem, the application has applied for a food package film and processing method thereof before this, mainly comprise ground floor composite bed, selection corona pre-treatment, thickness are the PET film of 12-18 μm, this PET film prints printed patterns and applying glue in adopting, resin added 8-10g/m2, solidification amount is 3-5g/m2; Second layer composite bed, selects food-grade wrapping paper, the quantitative 40-60g/m2 of food-grade wrapping paper, machine direction tensile strength >=1kN/m, smoothness >=100s; Third layer composite bed, selects thickness to be 65-7 μm of aluminium foil; 4th layer of composite bed, selection corona pre-treatment, thickness are the PET film of 12-18 μm, and this PET film prints printed patterns and applying glue, resin added 8-10g/m2 in adopting, and solidification amount is 3-5g/m2; Layer 5 rubberised layer, pre-gluing is in the thermosol glue-line in the front of the PET film of the 4th layer of composite bed.
Above packaging film comprises 5 layers of lamination layer structure, and wrapping paper is placed between PET film and aluminium foil, and carrying out needing in the process of processing to put together stacked for MULTILAYER COMPOSITE, process, sandwich construction makes packaging film make working (machining) efficiency low; Simultaneously in the process using packaging film, need to cut into slices to packaging film, heat and seal; What need packaging film to carry out definite shape before processing cuts film process, namely cuts with tool sharpening, due to sandwich construction, make packaging film integral thickness thicker, be difficult to realize cutting, carrying out in the process of cutting, die cut can be caused smooth not, affect packaging quality and attractive in appearance; Simultaneously because the dilatability of wrapping paper is different with the dilatability of other composite beds, the degree of adhesion of each composite bed is not high enough, when taking apart packaging film, easily occurs the layering of packaging film; Packaging film is in the process of packaging simultaneously, needs to heat, and it is excessively slow that existing structure also exists firing rate, affects the problem of working (machining) efficiency.
Summary of the invention
The object of the invention is to provide a kind of food package film, for solving the die cut out-of-flatness caused greatly due to packaging film thickness in prior art and the problem that firing rate is excessively slow in packaging process; In addition, the present invention can provide the packaging film of more high-stiffness, can realize easy stripping, avoids packaging film layering in the process of tearing.
For above problem, provide following technical scheme: a kind of food package film, is characterized in that: each layer composite bed comprising upper and lower compound, the quantitative of this packaging film is 94.1-130.95g/m
2, longitudinal and horizontal tensile strength>=10kN/m, longitudinal and horizontal tearability>=500mN, transparency is zero, smoothness>=100s; Wherein each layer composite bed is followed successively by up and down;
1) adopt the ground floor composite bed of PET film, the thickness of this PET film is 12-20 μm and bottom surface printed patterns;
2) adopt the second layer composite bed of aluminium foil, the thickness of this aluminium foil is 200-250 μm;
3) adopt the third layer composite bed of PET film, this PET film thickness be 12-20 μm and in print printed patterns;
4) the 4th layer of corresponding composite bed is thermosol glue-line, and this thermosol glue-line is positioned at the bottom surface of third layer composite bed;
Above-mentioned ground floor composite bed and second layer composite bed, between second layer composite bed and third layer composite bed, applying glue oxidant layer is set respectively.
The present invention is also set to further, and described applying glue oxidant layer adopts adhesive for polyurethane.
The present invention is also set to further, and described thermosol glue-line is liquid heat colloidal sol.
The material of above-mentioned used PET film is PETG, English name: polyethyleneterephthalate, and being called for short PET, is high polymer, by ethylene glycol terephthalate generation dehydration condensation.
According to above vibrational power flow, the present invention is on the basis of original technology, eliminate wrapping paper, add the thickness of aluminium foil, but the entirety of packaging film quantitatively reduces, thickness reduces, on the other hand because aluminium foil is close with the dilatability of corresponding PET film, certain degree of adhesion can be ensured, when cutting into slices to packaging film in the process of processing and use, die cut flatness can be improved, thus promote packaging quality; Moreover, owing to invention increases the thickness of aluminium foil, because the plasticity of aluminium foil is comparatively strong, whole packaging film is made to have higher deflection, when removing packaging film, easy stripping, before use packaging film is packed, need to heat packaging film, because the thickness of aluminium foil is increased to 200-250 μm, because aluminium foil has higher thermal conductivity, in the process of heating, be convenient to the efficiency promoting packaging.
Accompanying drawing explanation
Fig. 1 is the structural representation of food package film of the present invention.
Number in the figure implication: 1-ground floor composite bed; 2-second layer composite bed; 3-third layer composite bed; 4-the 4th layer of composite bed.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, a kind of food package film, is characterized in that: each layer composite bed comprising upper and lower compound, and the quantitative of this packaging film is 94.1-130.95g/m
2, longitudinal and horizontal tensile strength>=10kN/m, longitudinal and horizontal tearability>=500mN, transparency is zero, smoothness>=100s; Wherein each layer composite bed is followed successively by up and down;
1) adopt the ground floor composite bed 1 of PET film, the thickness of this PET film is 12-20 μm and bottom surface printed patterns;
2) adopt the second layer composite bed 2 of aluminium foil, the thickness of this aluminium foil is 200-250 μm;
3) adopt the third layer composite bed 3 of PET film, this PET film thickness be 12-20 μm and in print printed patterns;
4) the 4th layer of corresponding composite bed 4 is thermosol glue-line, and this thermosol glue-line is positioned at the bottom surface of third layer composite bed 3;
Above-mentioned ground floor composite bed 1 and second layer composite bed 2, between second layer composite bed 2 and third layer composite bed 3, applying glue oxidant layer is set respectively.
The present invention is also set to further, and described applying glue oxidant layer adopts adhesive for polyurethane.
The present invention is also set to further, and described thermosol glue-line is liquid heat colloidal sol.
The material of above-mentioned used PET film is PETG, English name: polyethyleneterephthalate, and being called for short PET, is high polymer, by ethylene glycol terephthalate generation dehydration condensation.
According to above vibrational power flow, the present invention is on the basis of original technology, eliminate wrapping paper, add the thickness of aluminium foil, but the entirety of packaging film quantitatively reduces, thickness reduces, on the other hand because aluminium foil is close with the dilatability of corresponding PET film, certain degree of adhesion can be ensured, when cutting into slices to packaging film in the process of processing and use, die cut flatness can be improved, thus promote packaging quality; Moreover, owing to invention increases the thickness of aluminium foil, because the plasticity of aluminium foil is comparatively strong, whole packaging film is made to have higher deflection, when removing packaging film, easy stripping, before use packaging film is packed, need to heat packaging film, because the thickness of aluminium foil is increased to 200-250 μm, because aluminium foil has higher thermal conductivity, in the process of heating, be convenient to the efficiency promoting packaging.
The processing method of the food package film in the present embodiment is, first each layer composite bed is stacked from top to bottom successively, respectively the PET film of ground floor composite bed 1 and third layer composite bed 3 is carried out corona pre-treatment before stacking, this PET film prints printed patterns and applying glue, resin added 8-10g/m in adopting
2, solidification amount is 3-5g/m
2, and then by the thermosol glue-line precoating glue of the 4th layer of rubberised layer in the front of the PET film of third layer composite bed 3; Each layer composite bed after stacking successively is by upper and lower two roller fashion of extrusion Compound Machining, wherein the control nip pressure 100-120kN/m in upper and lower Shuan Gun extrusion cladding district; Back segment heated-air drying curve temperature 60-80 DEG C, controls out baking zone moisture at the 9-15% relative to packaging film gross mass.
The above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improvement of above-mentioned hypothesis and modification also should be considered as protection scope of the present invention.
Claims (3)
1. a food package film, is characterized in that: each layer composite bed comprising upper and lower compound, and the quantitative of this packaging film is 94.1-130.95g/m
2, longitudinal and horizontal tensile strength>=10kN/m, longitudinal and horizontal tearability>=500mN, transparency is zero, smoothness>=100s; Wherein each layer composite bed is followed successively by up and down;
1) adopt the ground floor composite bed of PET film, the thickness of this PET film is 12-20 μm and bottom surface printed patterns;
2) adopt the second layer composite bed of aluminium foil, the thickness of this aluminium foil is 200-250 μm;
3) adopt the third layer composite bed of PET film, this PET film thickness be 12-20 μm and in print printed patterns;
4) the 4th layer of corresponding composite bed is thermosol glue-line, and this thermosol glue-line is positioned at the bottom surface of third layer composite bed;
Above-mentioned ground floor composite bed and second layer composite bed, between second layer composite bed and third layer composite bed, applying glue oxidant layer is set respectively.
2. a kind of food package film according to claim 1, is characterized in that: described applying glue oxidant layer adopts adhesive for polyurethane.
3. a kind of food package film according to claim 1, is characterized in that: described thermosol glue-line is liquid heat colloidal sol.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260597.3A CN104029438B (en) | 2014-06-04 | 2014-06-04 | A kind of food package film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410260597.3A CN104029438B (en) | 2014-06-04 | 2014-06-04 | A kind of food package film |
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| CN104029438A CN104029438A (en) | 2014-09-10 |
| CN104029438B true CN104029438B (en) | 2016-01-20 |
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| CN109016578A (en) * | 2018-07-19 | 2018-12-18 | 温州市嘉丽隆包装有限公司 | A kind of processing method and its packaging product of novel plastic uptake food packaging sealed membrane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201660212U (en) * | 2009-10-21 | 2010-12-01 | 浙江金石包装有限公司 | Aluminium foil sealing film of hot melt adhesive |
| CN202054242U (en) * | 2010-11-02 | 2011-11-30 | 浙江金石包装有限公司 | Negative and positive Internal-external packaging bag |
| CN202244482U (en) * | 2011-09-02 | 2012-05-30 | 浙江金石包装有限公司 | Easy-tearing packaging bag |
| CN203381276U (en) * | 2013-06-19 | 2014-01-08 | 杭州典浩彩印包装有限公司 | Vacuum packaging film with high sealing performance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1035741A (en) * | 1996-07-22 | 1998-02-10 | Hirataya:Kk | Packing of fine sweet paste (yokan) and packed yokan |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201660212U (en) * | 2009-10-21 | 2010-12-01 | 浙江金石包装有限公司 | Aluminium foil sealing film of hot melt adhesive |
| CN202054242U (en) * | 2010-11-02 | 2011-11-30 | 浙江金石包装有限公司 | Negative and positive Internal-external packaging bag |
| CN202244482U (en) * | 2011-09-02 | 2012-05-30 | 浙江金石包装有限公司 | Easy-tearing packaging bag |
| CN203381276U (en) * | 2013-06-19 | 2014-01-08 | 杭州典浩彩印包装有限公司 | Vacuum packaging film with high sealing performance |
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