CN103525327A - Ultraviolet ray hard coat film - Google Patents
Ultraviolet ray hard coat film Download PDFInfo
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- CN103525327A CN103525327A CN201310505624.4A CN201310505624A CN103525327A CN 103525327 A CN103525327 A CN 103525327A CN 201310505624 A CN201310505624 A CN 201310505624A CN 103525327 A CN103525327 A CN 103525327A
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- adhesive coating
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Abstract
The invention relates to an ultraviolet ray hard coat film which comprises a base material, an adhering layer and a connecting layer, wherein an adhesive coats one surface or double surfaces of the adhering layer; the connecting layer connects the base material with the adhering layer; a transparent or semi-transparent film is used as the base material, and the thickness, the elongation and the tensile strength of the base material are variable; the adhering layer mainly comprises the following components according to weight percentage: 10%-90% of adhesive resin, 1%-10% of a ultraviolet ray curing agent, 1%-10% of a photoinitiator and additives which comprise an organic solvent and solidifying powder; the using amount of the organic solvent is 1 to 2 times that of the adhesive resin, and the solidifying powder accounts for 25%-45% of the adhering layer; the connecting layer can be formed by corona discharge or formed by coating acrylic priming paint; the adhesive can be coated in a gradually changing manner, a COMMA manner, and the like. The ultraviolet ray hard coat film has the beneficial effects that the ultraviolet ray hard coat film can be easily stripped from the surface of an adhered object after being cured through ultraviolet irradiation, the application range is wide, the processing is convenient and the cost is lowered.
Description
Technical field
The invention belongs to protective membrane field, especially relate to a kind of UV cured film.
Background technology
In existing technology, the making method of general protective membrane is that Ya Like glue is coated on basement membrane, by adjusting glue spread, changes viscosity.But the product surface that such protective membrane is applied to the modes such as CNC processing, LCD protection, LENS protection and metal protection scratches, locates while using protective membrane, conventionally has following defect:
1. glue can adhere on product.Be protective tapes viscosity when low, be inconvenient to process; And tackify, glue easily adheres on product, makes to stay on product cull, or protective membrane is difficult for peeling off from affixed object.This glue is responsive to temperature variation, and the coating uniformity coefficient of viscose and affixed object surface are had to requirement.
2. operation is numerous and diverse.The protective membrane of preparing the various viscous forces of multilayer in operation, prepares a kind of protective membrane and will use 4-7 kind viscous force layer, causes cost to increase.
3. there is static.When general protective tapes tears it down, friction produces static (about 30000v left and right), can cause interference to signal, and human body is damaged.
Summary of the invention
The object of this invention is to provide a kind of easily from product surface peel off, operation is simple, good economical benefit, the UV cured film not high to environmental requirement.
Technical scheme of the present invention is: UV cured film, comprises that base material, single or double are coated with the articulamentum of the adhesive coating of tackiness agent, connection base material and adhesive coating; Wherein,
Described base material is transparent or semitransparent film, and its thickness, elongation and tensile strength can change, and the thickness of base material can be selected between 15-500 μ m, and elongation can be more than 50%, and tensile strength is at 50kg/
cm 2 above; When described base material is one-side band viscosity, face coating back side agent or the release film of the contact of discord affixed object, form back layer, and the back side power of back layer is between 2-15g/mm, the thickness of back layer is between 0.1-10.0 μ m, the agent of the described back side is selected from wax, silicon, tetrafluoroethylene, and described release film can be selected conventional in the industry release film, also can select the release film that is coated with silicon system;
Described adhesive coating mainly comprises tackifying resin, ultraviolet curing agent, light trigger, wherein each component concentration is (weight percent): tackifying resin 10-90%, ultraviolet curing agent 1-10 %, light trigger 1-10 %, in addition also contain additives, described additives comprise organic solvent and solid powder, and described organic solvent is 1-2 times of adhesive coating resin usage quantity, the 25-45 % that solid powder is adhesive coating;
Described articulamentum can, by carry out Corona discharge Treatment formation on base material, can be also that priming paint forms at the contact surface coating acrylic of base material and adhesive coating;
The coating process of tackiness agent can, according to the surface property of affixed object, be selected the modes such as gradual change coating, COMMA coating.
Further, under the illumination that described base material is 250-450nm at wavelength, ultraviolet ray transmissivity is more than 65%;
Further, described base material is selected in polyolefin film, polycarbonate membrane, tynex film, polychloroethylene film, vinyl chloride compound co-polymer membrane, polyurethane film, polyethylene terephthalate film, porphyrin film, acrylic copolymer film, polyester film, ethylene vinyl acetate copolymer film, Polystyrene Film, polyhutadiene film, ionomer resin film;
Further, the preferred Low Density Polyethylene of described polyolefin film, high density polyethylene(HDPE), super-high density polyethylene; Further, described tackifying resin is selected from polyacrylic ester, vinyl acetate, acrylate; Described ultraviolet curing agent is selected from isocyanate resin, melamine resin, urethane resin, epoxy, acid anhydrides, versamid 900, carboxyl polymer; Light trigger is to select from titanium oxide, benzoin alkylether, aromatic ketone, fragrant ketal, mitoxantrone; Organic solvent is selected from vinyl acetic monomer, toluene, methylethylketone, ethanol, and its usage quantity is to contrast the 1:0 of tackifying resin usage quantity to 1:2 times, and usage quantity regulates according to the solid powder content of adhesive coating;
Further, described tackifying resin is mainly used polyacrylate resin, particularly the present invention will contain ultraviolet curing shape oligopolymer, and ultraviolet curing shape oligopolymer is to select oligopolymer, isocyanuric acid ester oligomer etc. from acrylic ester oligopolymer, cyanurate;
Described ultraviolet curing agent is selected from isocyanate resin, melamine resin, urethane resin, epoxy, acid anhydrides, versamid 900, carboxyl polymer;
Light trigger is to select from titanium oxide, benzoin alkylether, aromatic ketone, fragrant ketal, mitoxantrone;
Organic solvent is selected from vinyl acetic monomer, toluene, methylethylketone, ethanol, and its usage quantity is to contrast the 1:0 of tackifying resin usage quantity to 1:2 times, and usage quantity regulates according to the solid powder content of adhesive coating.
Advantage and positively effect that the present invention has are:
1. in UV cured film production process, by strong viscous force glue, be fixed on the surface that needs protection; and viscosity homogeneous, conveniently do industry; when protective membrane need to be torn it down; with ultraviolet ray or solar light irradiation; wherein adhesive coating is solidified into solid state; viscous force lost efficacy and (irradiated rear viscous force: 10-100g/25mm), be easy to strip down, can not leave cull on affixed object surface.
2. ultraviolet film is after irradiating, and the adhesion molecules structure of adhesive coating is solidified into 3 dimension reticulated structures, is not subject to the impact of humiture environment.And it is put in for a long time and outdoorly also can change after uviolizing.
3. the mode of peeling off of ultraviolet irradiation can not produce any electrostatic influence (static scope 0-500v left and right) to product, and Product Safety improves.
4. ultraviolet film does not require affixed object surface, and any surface can be used, and user can easily converted products.
5. UV cured film can be processed into single or double as required, is applicable to multiple manufacture field.
6. UV cured film needs only one deck adhesive coating in operation, has saved cost.
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Embodiment
In the making processes of the UV cured film of the present invention:
When tackifying resin usage quantity is during less than 10 %, solid powder content is not enough, and viscous force declines; Surpass 90% more difficult control viscose glue spread.
When the usage quantity less than 1% of ultraviolet curing agent, before uviolizing, in tackiness agent composition, have uncured material, cause cohesive force to decline, thermal stability declines, and occurs the phenomenon that adhesive coating is cracked; As usage quantity surpasses 10%, solidifying agent occurs to solidify phenomenon, occurs vaporific phenomenon on affixed object.
Under the uviolizing that light trigger is 250-450nm at wavelength, decompose, form the material contain free radical, when usage quantity is lower than 1% time, can not fully resolve into radically curing; While surpassing 10%, can form unreacted free radical, the essential structure of viscosity physical property goes wrong.
The adhesive coating forming according to technical scheme is before uviolizing, and viscous force is 250-1500g/25mm (generally more approaching 300-950g/25mm); After uviolizing, viscous force is 0.5-200g/25mm (generally more approaching 10-100g/25mm).The thickness of adhesive coating is 0.5-75 μ m, is transferred to 1.5-30 μ m better.
In the present embodiment, the feature of above adhesion coating is that before uviolizing, viscous force is 250 ~ 1500g/25mm, and after uviolizing, viscous force is 0.5 ~ 200g/25mm.
Application of the present invention: the fields such as electronical display, CNC processing, LCD protection, LENS protection and metal protection.
The wherein application of field of electronic display:
1. flexible Organic Light Emitting Diode production technique is used
The technique of flexible OLED:
Can there is not chemical transformation in UV cured film, while removing glass substrate after OLED plated film, through uviolizing, UV cured film can be peeled off easily in the technological temperature of 300-500 degree; And in the situation that not using UV cured film, it is on glass through process high-temperature processing that PI film is attached to, be difficult to UV cured film to peel off.
2. touch-screen production technique
On large-area glass display panel, printing or exposure form ITO and touch circuit; after machine-shaping; for peeling off more easily protective membrane; need to improve the hardening strength of glass sides; carry out 2 strengthenings; after having strengthened, with uviolizing, be affixed on the protective membrane on glass two sides, protective membrane can easily be peeled off.
Test case 1:COMMA mode
Single spreading, for handwares such as clock and watch.
It is the transparent film of polyethylene terephthalate that base material film film is selected material, and its ultraviolet ray transmissivity is 75%, and thickness is 25 μ m, and primary coat is done on surface, and linker thickness is 1 μ m.
Tackifying resin is selected polyacrylate resin 1kg
Isocyanate resin 21g is selected in ultraviolet curing agent
Light trigger is selected benzoin alkylether resin 21g
By COMMA mode, coat above linker, adhesive layer thickness reaches 15-20 μ m.
The silicon-dioxide in silicon system is selected in back side agent, and thickness is 1.0 μ m.
The UV cured film producing like this, before uviolizing, viscous force is 750g/25mm; Through 420nm ultraviolet ray, after 2.5 to 3 seconds irradiate, viscous force drops to 42g/25mm.
Test case 2: gradual manner coating
It is poly transparent film that base material film film is selected material, and its ultraviolet ray transmissivity is 75%, and thickness is 25.0 μ m, and primary coat is done on surface, and linker layer thickness is 1.0 μ m, and the characteristic of polyolefin is that upper surface energy level is low, without using back side agent.
Tackifying resin is used polyacrylate resin 1kg
Organic solvent ethyl acetate 0.9kg
Ultraviolet curing agent isocyanate resin 21g
Benzoin alkylether resin 21g for light trigger
After mixing, on linker, by gravure screen cloth (having 20-80 grid on screen cloth) mode, be coated with, coating thickness is at 1.5-1.8 μ m.
The UV cured film producing like this, before uviolizing, viscous force is 520g/25mm; Through 420nm uviolizing 2.0-2.3, after second, viscous force drops to 38g/25mm.
The object that adds tackifying resin and organic solvent to mix is: during gradual manner coating, stickiness is too high, and coating can be difficult, need to maintain certain viscosity.
Uviolizing equipment:
The uviolizing equipment of this experiment use is that 3.2kw, speed are the ultraviolet curing machine of 4.0-5.5 second/m, and the optimum velocity by irradiation apparatus is 2.0-2.75 second/500mm.The wide of irradiation apparatus is 500mm, and long is 500mm, and the distance of irradiation light and affixed object is 300mm.The irradiation apparatus that the present invention makes can be realized and working continuously, and displays a light for a long time, and can not have problems.
Above one embodiment of the present of invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (9)
1. UV cured film, the articulamentum that comprises adhesive coating, connection base material and the adhesive coating of base material, single or double coating tackiness agent, it is characterized in that: described base material is transparent or semitransparent film, its thickness, elongation and tensile strength can change, the thickness that is base material can be selected between 15-500 μ m, elongation can be more than 50%, and tensile strength is at 50kg/
cm 2 above; When described base material is one-side band viscosity, face coating back side agent or the release film of the contact of discord affixed object, form back layer, and the back side power of back layer is between 2-15/mm, the thickness of back layer is between 0.1-10.0 μ m, the agent of the described back side is selected from wax, silicon, tetrafluoroethylene, and described release film can be selected conventional in the industry release film, also can select the release film that is coated with silicon system;
Described adhesive coating main component is tackifying resin, ultraviolet curing agent, light trigger, wherein each component concentration is (weight percent): tackifying resin 10-90%, ultraviolet curing agent 1-10 %, light trigger 1-10 %, in addition, adhesive coating also contains additives, and described additives comprise organic solvent and solid powder, described organic solvent is 1-2 times of adhesive coating resin usage quantity, the 25-45 % that solid powder is adhesive coating;
Described articulamentum can, by carry out Corona discharge Treatment formation on base material, can be also that priming paint forms at the contact surface coating acrylic of base material and adhesive coating;
The coating process of tackiness agent can, according to the surface property of affixed object, be selected the modes such as gradual change coating, COMMA coating.
2. UV cured film according to claim 1, is characterized in that: under the illumination that described base material is 250-450nm at wavelength, ultraviolet ray transmissivity is more than 65%.
3. UV cured film according to claim 1, is characterized in that: described base material is selected in polyolefin film, polycarbonate membrane, tynex film, polychloroethylene film, vinyl chloride compound co-polymer membrane, polyurethane film, polyethylene terephthalate film, porphyrin film, acrylic copolymer film, polyester film, ethylene vinyl acetate copolymer film, Polystyrene Film, polyhutadiene film, ionomer resin film.
4. UV cured film according to claim 3, is characterized in that: the preferred Low Density Polyethylene of described polyolefin film, high density polyethylene(HDPE), super-high density polyethylene.
5. UV cured film according to claim 1, is characterized in that: described tackifying resin is selected from polyacrylic ester, vinyl acetate, acrylate; Described ultraviolet curing agent is selected from isocyanate resin, melamine resin, urethane resin, epoxy, acid anhydrides, versamid 900, carboxyl polymer; Light trigger is to select from titanium oxide, benzoin alkylether, aromatic ketone, fragrant ketal, mitoxantrone; Organic solvent is selected from vinyl acetic monomer, toluene, methylethylketone, ethanol, and its usage quantity is to contrast the 1:0 of tackifying resin usage quantity to 1:2 times, and usage quantity regulates according to the solid powder content of adhesive coating.
6. UV cured film according to claim 5, it is characterized in that: described tackifying resin is mainly used polyacrylate resin, particularly the present invention will contain ultraviolet curing shape oligopolymer, and ultraviolet curing shape oligopolymer is to select oligopolymer, isocyanuric acid ester oligomer etc. from acrylic ester oligopolymer, cyanurate.
7. UV cured film according to claim 1, is characterized in that: described ultraviolet curing agent is selected from isocyanate resin, melamine resin, urethane resin, epoxy, acid anhydrides, versamid 900, carboxyl polymer.
8. UV cured film according to claim 1, is characterized in that: light trigger is to select from titanium oxide, benzoin alkylether, aromatic ketone, fragrant ketal, mitoxantrone.
9. UV cured film according to claim 1, it is characterized in that: organic solvent is selected from vinyl acetic monomer, toluene, methylethylketone, ethanol, its usage quantity is to contrast the 1:0 of tackifying resin usage quantity to 1:2 times, and usage quantity regulates according to the solid powder content of adhesive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505624.4A CN103525327A (en) | 2013-10-24 | 2013-10-24 | Ultraviolet ray hard coat film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505624.4A CN103525327A (en) | 2013-10-24 | 2013-10-24 | Ultraviolet ray hard coat film |
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| CN103525327A true CN103525327A (en) | 2014-01-22 |
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| CN201310505624.4A Pending CN103525327A (en) | 2013-10-24 | 2013-10-24 | Ultraviolet ray hard coat film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505249A (en) * | 2016-02-03 | 2016-04-20 | 嘉兴中易碳素科技有限公司 | Novel functional adhesive tape and production method thereof |
| CN106634452A (en) * | 2016-12-23 | 2017-05-10 | 江苏玖尚新材料有限公司 | Storage tank liner protective material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1574557A1 (en) * | 2004-03-12 | 2005-09-14 | Nitto Denko Corporation | Transparent double-sided pressure-sensitive adhesive tape or sheet and touch panel |
| CN101215448A (en) * | 2007-01-05 | 2008-07-09 | 日东电工株式会社 | Adhesive sheet for processing semiconductor substrates |
| CN101381587A (en) * | 2007-09-06 | 2009-03-11 | 日东电工株式会社 | Pressure-sensitive adhesive sheet for dicing and dicing method |
-
2013
- 2013-10-24 CN CN201310505624.4A patent/CN103525327A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1574557A1 (en) * | 2004-03-12 | 2005-09-14 | Nitto Denko Corporation | Transparent double-sided pressure-sensitive adhesive tape or sheet and touch panel |
| CN101215448A (en) * | 2007-01-05 | 2008-07-09 | 日东电工株式会社 | Adhesive sheet for processing semiconductor substrates |
| CN101381587A (en) * | 2007-09-06 | 2009-03-11 | 日东电工株式会社 | Pressure-sensitive adhesive sheet for dicing and dicing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505249A (en) * | 2016-02-03 | 2016-04-20 | 嘉兴中易碳素科技有限公司 | Novel functional adhesive tape and production method thereof |
| CN106634452A (en) * | 2016-12-23 | 2017-05-10 | 江苏玖尚新材料有限公司 | Storage tank liner protective material |
| CN106634452B (en) * | 2016-12-23 | 2019-01-29 | 江苏玖尚新材料有限公司 | A kind of storage tank liner protection materials |
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Application publication date: 20140122 |