CN1565839A - Rainbow film with heatseal characteristic and manufacturing method thereof - Google Patents
Rainbow film with heatseal characteristic and manufacturing method thereof Download PDFInfo
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- CN1565839A CN1565839A CN 03149324 CN03149324A CN1565839A CN 1565839 A CN1565839 A CN 1565839A CN 03149324 CN03149324 CN 03149324 CN 03149324 A CN03149324 A CN 03149324A CN 1565839 A CN1565839 A CN 1565839A
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Abstract
The invention provides a method for manufacturing heat seal laminated film with rainbow gloss which includes laminating two different kinds of plastic material whose refractive index difference is above 0.03 by extrusion, and adding a heat seal layer on at least one side of the laminated film.
Description
Technical field
The present invention forms a laminated film for making two kinds of different plastic cement material co-extrusion pressures of a kind of tool, and this laminated film skin is provided with a hot sealing layer, makes this rainbow film tool heat-sealable, and preparation method thereof.
Background technology
What is called has the laminated film of rainbow brilliance, mainly be by two kinds transparent but tool varies in size the plastic cement material of refractive index, form with the staggered in twos stacked in parallel of suitable thickness, adjacent two-layer material is different each other, the number of plies of piling up of laminated film is at least more than 10 layers, but generally use all more than 70 layers, and each layer thickness of forming lamination scope between 0.03-0.5 μ m usually, modal thickness is the scope between the 0.05-0.4 μ m.In addition, learn to asking the dazzling effect of the rainbow brilliance that reaches preferable by previous patent documentation, it is promptly stronger by the color intensity as the rainbow that laminated film reflected to anticipate, and then cause laminated film to give out adopting colourful preferable effect, major influence factors is except having: (1) forms the number of plies of laminated film; more (2) optical thickness of each layer material ratio; (3) the thickness flatness of each layer; One key factor is still arranged, that is be the difference of the refractive index of the selected plastic cement material of laminated film, heal big effect better as difference, but because the refractive index of general plastic cement material is many between 1.3-1.6, so, the refractive index difference of general selected plastic cement material is 0.03, is 0.06 than the dust head.In addition, consider the factor of practicality, the refractive index of the general normal plastic cement material of selecting for use is all between 1.5-1.6.
Method for making as for laminated film, from the U.S. the 3rd, 565, No. 985 patent cases and the 3rd, 773, No. 882 patent cases are as can be known, by the machinery equipment of using single (two) worm press peace mo(u)lded head (extrusion head) more than two ones, add utilization die head pan feeding part flow arrangement in addition, the different materials that can produce flatness piles up the laminated film as thin as a wafer that forms alternately, and can change the number of plies of laminated film and the thickness distribution of each layer etc. by changing die head pan feeding part flow arrangement (feed block).
U.S. the 5th in addition, 089, No. 318 patent cases expose utilize a kind of with poly-terephthalic acids dibutyl ester (PBT), poly terephthalic acid diethylester (PET), Merlon thermoplasticities such as (PC) is got ester class material to be rigid structure section (hard segment) and to get copolymer that ether ethylene glycol (PEG), silica gel (Silicone), rubber soft structural sections (son segment) such as (rubber) formed when the material as laminated film, and this application mode can obviously improve interlaminar adhesion and solvent resistance between topic.
The U.S. the 6th, 475, No. 608 the patent case is further exposed the polyester based copolymer of using the naphthalene nucleus derivative, for example naphthalenedicarboxylic acid dibutyl ester copolymer is the material of laminated film, can obtain preferable hear resistance, solvent resistance, preferable tensile strength, anti-UV and enhancing plunger bond strength etc.
Summary of the invention
Main purpose of the present invention provides the method for making of the heat-sealable rainbow film of a kind of tool, it is the thermoplastic plastic rubber with a high refractive index layer and a low-index layer, utilize co-extrusion pressure casting film technology, make this high and low refractive index layer pile up lamination alternately and form a sandwich construction, other is with the outermost one side or the two-sided hot sealing layer that is provided with of this laminated film, and, make it possess contractility by the control annealing temperature, and form rainbow film finished product with heat-sealing function.
Secondary objective of the present invention provides the heat-sealable rainbow film of a kind of tool, it is the thermoplastic plastic rubber with a high refractive index layer and a low-index layer, form in the co-extrusion pressure mode and to pile up lamination alternately and form a sandwich construction, the outermost one side or the two-sided hot sealing layer that is provided with of this laminated film formed.Wherein, this hot sealing layer is that it can be attached to this laminated film surface by co-extrusion pressure, coating or laminating type for a kind of fusing point or softening point are low thermoplastic resin more than 10 ℃ than the laminated film material.
For achieving the above object, technical solution of the present invention provides the method for making of the heat-sealable rainbow film of a kind of tool, it is the thermoplastic plastic rubber with a high refractive index layer and a low-index layer, utilize co-extrusion pressure casting film technology, make this high and low refractive index layer pile up lamination alternately and form a sandwich construction, other is with the outermost one side or the two-sided hot sealing layer that is provided with of this laminated film, and the rainbow film finished product that formation has the heat-sealing function.
Described method for making, wherein the refringence of this high index of refraction layer material and low-refraction layer material is 0.03.
Described method for making, wherein this high index of refraction layer material and low-refraction layer material are poly-terephthaldehyde's dibutyl ester and polymethyl methacrylate (PBT/PMMA), poly-to naphthalenedicarboxylic acid diethylester and poly terephthalic acid diethylester (PEN/PET) or to naphthalenedicarboxylic acid diethylester (PEN) and polymethyl methacrylate (PMMA).
Described method for making, wherein the thickness of this high and low refractive index layer is between the 0.05-0.4 μ m, and the thickness of hot sealing layer is 0.2-50 μ m.
Described method for making, wherein this hot sealing layer material is that a kind of fusing point or softening point are low thermoplastic resin more than 10 ℃ than the laminated film material.
Described method for making, wherein this hot sealing layer is poly-copolymer, PE, PP or EVA etc. to naphthalenedicarboxylic acid diethylester and poly terephthalic acid diethylester.
Described method for making, wherein this high and low refractive index layer and hot sealing layer material are dried earlier before entering extruder, and its moisture content is reduced to below the 50ppm.
Described method for making, wherein this high and low refractive index layer piles up lamination alternately and is at least 20 layers.
Described method for making, wherein this hot sealing layer is to be attached to this laminated film surface by co-extrusion pressure, coating or laminating type.
The present invention also provides a kind of tool heat-sealable rainbow film, it is the thermoplastic plastic rubber with a high refractive index layer and a low-index layer, form in the co-extrusion pressure mode and to pile up lamination alternately and form a sandwich construction, the outermost one side or the two-sided hot sealing layer that is provided with of this laminated film formed.
The rainbow film that described tool is heat-sealable, wherein the refringence of this high index of refraction layer material and low-refraction layer material is 0.03.
The rainbow film that described tool is heat-sealable, wherein this high index of refraction layer material and low-refraction layer material are poly-terephthaldehyde's dibutyl ester and polymethyl methacrylate (PBT/PMMA), poly-to naphthalenedicarboxylic acid diethylester and poly terephthalic acid diethylester (PEN/PET) or to naphthalenedicarboxylic acid diethylester (PEN) and polymethyl methacrylate (PMMA).
The rainbow film that described tool is heat-sealable, wherein the thickness of this high and low refractive index layer is between the 0.05-0.4 μ m, and the thickness of hot sealing layer is 0.2-50 μ m.
The rainbow film that described tool is heat-sealable, wherein this high and low refractive index layer piles up lamination alternately and is at least 20 layers.
The rainbow film that described tool is heat-sealable, wherein this hot sealing layer is to be attached to this laminated film surface by co-extrusion pressure, coating or laminating type.
Description of drawings
Fig. 1 is the sectional drawing of rainbow film of the present invention.
The specific embodiment
As shown in Figure 1, basically, the sectional drawing of the rainbow film 1 that tool of the present invention is heat-sealable, it is to utilize the thermoplastic plastic rubber of the technology of co-extrusion cun first casting film with two kinds of sizes (or height) different refractivity, such as refringence is high refractive index layer 11 and low-index layer 12 more than 0.03, for example poly-terephthaldehyde's dibutyl ester/polymethyl methacrylate (PBT/PMMA), perhaps gather naphthalenedicarboxylic acid diethylester/poly terephthalic acid diethylester (PEN/PET) etc. is piled up lamination more than at least 20 layers alternately, wherein each layer thickness is controlled between the 0.05-0.4 μ m, and the outermost one side of this laminated film or the two-sided hot sealing layer 13 that is provided with, for example poly-copolymer to naphthalenedicarboxylic acid diethylester/poly terephthalic acid diethylester is a material, and its thickness is 0.2-50 μ m, the laminated film of this adhesion heat seal 13 can be through extending or extension process not, and control annealing temperature, make it possess the contractility of a little, this laminated film after above-mentioned processing is rainbow film (iridescent film) finished product with heat-sealing function.
In addition, prepare the laminated film (rainbow film) that comprises high refractive index layer 11 and low-index layer 12 with aforesaid known technology in advance, and then coat the one side of this laminated film or two-sided with low-heat envelope property plastic material, forming hot sealing layer 13, and its thickness is 0.2-50 μ m.
Moreover, prepare the laminated film (rainbow film) that comprises high refractive index layer 11 and low-index layer 12 with aforesaid known technology in advance, and then with heat envelope property plastic material, for example PE, PP or EVA etc. fit in the one side of this laminated film or two-sided, with formation hot sealing layer 13, and its thickness is 0.2-50 μ m.
Embodiment one
With the thermoplasticity polyester of polybutyl terapthalate (PBT) and the material of getting formation iridescence color effects such as methyl methacrylate (PMMA), with outermost material (hot sealing layer) poly-to the naphthalenedicarboxylic acid diethylester with get diethyl terephthalate (weight is mixed at 1: 1) respectively after the fusion via three different extruders, enter the co-extrusion that is equiped with the pan feeding current divider and flatten mo(u)lded head (extrusion head), wherein polybutyl terapthalate (PBT) is divided into 121 layers with polymethyl methacrylate, and outermost layer is 1.0 μ m for gathering naphthalenedicarboxylic acid diethylester and poly terephthalic acid diethylester copolymer.More than all polyester materials before entering extruder, need earlier after the baking box oven dry, moisture content is reduced to below the 50ppm can be used, and the laminated film after will being shaped subsequently is through 190 ℃ extension, for example vertical 3 times and horizontal 4 times of extensions (also can possess heat seal property simultaneously) without the extension program.Subsequently, the suitable annealing temperature of row control again makes a little contractility of this laminated film tool, and according to this, forming thickness is the rainbow film of the heat envelope property of 20 μ m.Wherein, this rainbow film is two-sided has a heat-sealing ability.
With the laminated film of aforementioned gained with 110 ℃ of heat-sealings after, can have the 20N/15mm heat seal strength, so should be enough to deal with the needs of general packaging applications.
Embodiment two
To gather naphthalenedicarboxylic acid diethylester (PEN) and surpass 0.03 material with two kinds of refringences of polymethyl methacrylate (PMMA), with the polyester copolymer (copolyester) of hot sealing layer material via extruding system film and the extension process identical with embodiment one, forming gross thickness according to this is the rainbow film of the heat envelope property of 21 μ m.Each 1.5 μ m of this hot sealing layer thickness two sides.
Embodiment three
Behind the thermoplasticity polyester and the fusion of polymethyl methacrylate (PMMA) with polybutyl terapthalate (PBT) via two different extruders, enter the co-extrusion that is equiped with the pan feeding current divider and flatten mo(u)lded head (extrusion head), through the casting film program, make the laminated film (rainbow film) with 121 layers, its gross thickness is 17 μ m.With the two-sided polyester copolymer of this laminated film (as SunkyongKoreaES900) 1.5 μ m, promptly make the heat-sealable rainbow film of tool again via the coated heat sealing material.
Embodiment four
The thickness that embodiment three is made is the laminated film (rainbow film) of 17 μ m, and it is two-sided with respectively the fit PE film of 20 μ m of dry type applying method, and forming gross thickness is the heat-sealable rainbow film of about 59 μ m.
So, via enforcement of the present invention, the rainbow film that this tool is heat-sealable, mainly be all can't reach the heat-sealable of practicability for improving previous rainbow film product, so that when existing rainbow film is applied to the packing of product, all can't have good heat seal strength, perhaps must assist other cohesive materials such as glue, paste and adhesive tape can finish packing and fit, to overcome existing rainbow film inconvenience in the use.
Disclosed person is a kind of of preferred embodiment, and Ju Bu change or modification and come from the technological thought of this case and be easy to the person of knowing by inference by the people who has the knack of this skill such as all do not break away from the patent right category of this case.
Claims (15)
1. the method for making of the heat-sealable rainbow film of a tool, it is characterized in that, it is thermoplastic plastic rubber with a high refractive index layer and a low-index layer, utilize co-extrusion pressure casting film technology, make this high and low refractive index layer pile up lamination alternately and form a sandwich construction, other is with the outermost one side or the two-sided hot sealing layer that is provided with of this laminated film, and the rainbow film finished product that formation has the heat-sealing function.
2. method for making as claimed in claim 1 is characterized in that, wherein the refringence of this high index of refraction layer material and low-refraction layer material is 0.03.
3. method for making as claimed in claim 1, it is characterized in that wherein this high index of refraction layer material and low-refraction layer material are poly-terephthaldehyde's dibutyl ester and polymethyl methacrylate (PBT/PMMA), poly-to naphthalenedicarboxylic acid diethylester and poly terephthalic acid diethylester (PEN/PET) or to naphthalenedicarboxylic acid diethylester (PEN) and polymethyl methacrylate (PMMA).
4. method for making as claimed in claim 1 is characterized in that, wherein the thickness of this high and low refractive index layer is between the 0.05-0.4 μ m, and the thickness of hot sealing layer is 0.2-50 μ m.
5. method for making as claimed in claim 1 is characterized in that, wherein this hot sealing layer material is that a kind of fusing point or softening point are low thermoplastic resin more than 10 ℃ than the laminated film material.
6. method for making as claimed in claim 5 is characterized in that, wherein this hot sealing layer is poly-copolymer, PE, PP or EVA etc. to naphthalenedicarboxylic acid diethylester and poly terephthalic acid diethylester.
7. method for making as claimed in claim 1 is characterized in that, wherein this high and low refractive index layer and hot sealing layer material are dried earlier before entering extruder, and its moisture content is reduced to below the 50ppm.
8. method for making as claimed in claim 1 is characterized in that, wherein this high and low refractive index layer piles up lamination alternately and is at least 20 layers.
9. method for making as claimed in claim 1 is characterized in that, wherein this hot sealing layer is to be attached to this laminated film surface by co-extrusion pressure, coating or laminating type.
10. rainbow film that tool is heat-sealable, it is characterized in that, be the thermoplastic plastic rubber with a high refractive index layer and a low-index layer, forms in the co-extrusion pressure mode and pile up lamination alternately, forming a sandwich construction, the outermost one side or the two-sided hot sealing layer that is provided with of this laminated film formed.
11. the rainbow film that tool as claimed in claim 10 is heat-sealable is characterized in that, wherein the refringence of this high index of refraction layer material and low-refraction layer material is 0.03.
12. the rainbow film that tool as claimed in claim 10 is heat-sealable, it is characterized in that wherein this high index of refraction layer material and low-refraction layer material are poly-terephthaldehyde's dibutyl ester and polymethyl methacrylate (PBT/PMMA), poly-to naphthalenedicarboxylic acid diethylester and poly terephthalic acid diethylester (PEN/PET) or to naphthalenedicarboxylic acid diethylester (PEN) and polymethyl methacrylate (PMMA).
13. the rainbow film that tool as claimed in claim 10 is heat-sealable is characterized in that, wherein the thickness of this high and low refractive index layer is between the 0.05-0.4 μ m, and the thickness of hot sealing layer is 0.2-50 μ m.
14. the rainbow film that tool as claimed in claim 10 is heat-sealable is characterized in that, wherein this high and low refractive index layer piles up lamination alternately and is at least 20 layers.
15. the rainbow film that tool as claimed in claim 10 is heat-sealable is characterized in that, wherein this hot sealing layer is to be attached to this laminated film surface by co-extrusion pressure, coating or laminating type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149324 CN1565839A (en) | 2003-06-26 | 2003-06-26 | Rainbow film with heatseal characteristic and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149324 CN1565839A (en) | 2003-06-26 | 2003-06-26 | Rainbow film with heatseal characteristic and manufacturing method thereof |
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| CN1565839A true CN1565839A (en) | 2005-01-19 |
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| CN 03149324 Pending CN1565839A (en) | 2003-06-26 | 2003-06-26 | Rainbow film with heatseal characteristic and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441879A (en) * | 2014-11-21 | 2015-03-25 | 上海梵和聚合材料有限公司 | Rainbow film |
| CN105799179A (en) * | 2015-01-02 | 2016-07-27 | 中原工学院 | Preparing method for high-performance gas sensor film with chromaticity capable of being visually read |
| WO2018103012A1 (en) * | 2016-12-07 | 2018-06-14 | 吕尚文 | Microstructure transfer film manufacturing method and microstructure transfer film |
| CN108162423A (en) * | 2016-12-07 | 2018-06-15 | 吕尚文 | The manufacturing method of micro-structure transfer membrane and micro-structure transfer membrane |
| CN109624164A (en) * | 2019-02-22 | 2019-04-16 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of interference rainbow film solution formula and its interference thin film and preparation method |
-
2003
- 2003-06-26 CN CN 03149324 patent/CN1565839A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441879A (en) * | 2014-11-21 | 2015-03-25 | 上海梵和聚合材料有限公司 | Rainbow film |
| CN105799179A (en) * | 2015-01-02 | 2016-07-27 | 中原工学院 | Preparing method for high-performance gas sensor film with chromaticity capable of being visually read |
| CN105799179B (en) * | 2015-01-02 | 2018-06-29 | 中原工学院 | Coloration, the preparation method of gas sensor film with high performance can intuitively be read |
| WO2018103012A1 (en) * | 2016-12-07 | 2018-06-14 | 吕尚文 | Microstructure transfer film manufacturing method and microstructure transfer film |
| CN108162423A (en) * | 2016-12-07 | 2018-06-15 | 吕尚文 | The manufacturing method of micro-structure transfer membrane and micro-structure transfer membrane |
| CN109624164A (en) * | 2019-02-22 | 2019-04-16 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of interference rainbow film solution formula and its interference thin film and preparation method |
| CN109624164B (en) * | 2019-02-22 | 2020-12-18 | 广东省科学院生物工程研究所 | Formula of interference rainbow film solution, interference film and preparation method thereof |
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