CN103194152B - Surface protection film and fit its optics, mechanicals - Google Patents
Surface protection film and fit its optics, mechanicals Download PDFInfo
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- CN103194152B CN103194152B CN201210545119.8A CN201210545119A CN103194152B CN 103194152 B CN103194152 B CN 103194152B CN 201210545119 A CN201210545119 A CN 201210545119A CN 103194152 B CN103194152 B CN 103194152B
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- adherend
- film
- surface protection
- protection film
- close binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/385—Acrylic polymers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a kind of surface protection film and fit its optics, mechanicals.Even if the bounding force that described surface protection film is adherend close binder reduces; in the operation manufacturing surface protection film; also do not float between adherend close binder and the mulch film as the film for the protection of its surface; there is the adherend close binder of surface smoothing; can peel off like a cork when adherend is peeled off; be tightly sealed at the surface protection film of adherend protection adherend in use in manufacturing process, and the pollution on adherend surface after stripper surface protective membrane is few.Surface protection film 10 has the closely sealed film 5 of adherend obtained at the adherend close binder 2 that at least simultaneously the surface smoothing formed by silicone resin is amassed on upper strata of transparent substrate 1; in order to protect the surface of adherend close binder 2, the mulch film 6 that the one side of base material 4 forms binder layer 3 is conformed to the surface of adherend close binder 2 via binder layer 3.
Description
Technical field
The present invention relates to the surface protection film on the surface of the various mechanicalss of the precision optical machinery of the blooming, semi-conductor pertinent instruments etc. of the optics, Polarizer, diffusing panel, light guiding plate etc. of protection lens etc. etc.In more detail, the present invention relates to the surface protection film peeled off like a cork when being sealed at adherend, stripping.The invention provides and be tightly sealed at adherend protection adherend, and the surface protection film that the pollution on adherend surface after stripper surface protective membrane is few, and be fitted with optics, the mechanicals of described surface protection film.
In addition, as the purposes of surface protection film of the present invention, can enumerate in detail: camera lens, glasses lens, head lamp of vehicle lens, the optics of optical fiber etc., various indicating meter (PDP, LCD, organic EL etc.) image display body, lens array sheet, contact panel, Polarizer, diffusing panel, polarizer, the various bloomings of light guiding plate etc., stainless steel plate, the metal sheet of aluminium sheet etc., the plastic plate of acrylic board (ア Network リ Le plate) etc., the material of construction of sheet glass etc. and Industrial materials, Medical Instruments, the surface protection film used in the surface protection of the precision instrument of semiconductor manufacturing pertinent instruments etc. etc.
Background technology
In the manufacturing process of multiple mechanicals, the surface for safeguard industries goods exempts from pollution, damaged and use surface protection film.Such as, when manufacturing, carrying the optics of image display body, opticglass, various bloomings etc. of indicating meter, at the surperficial coating surface protective membrane of this optics, prevent pollution and the scuffing on surface in subsequent handling.Further, the goods inspection of the visual inspection of the optics of various bloomings etc. etc. can be carried out under the state being fitted with surface protection film.In addition, carry out assembling procedure etc. under the state that can be fitted with surface protection film on the surface of indicating meter, use as operation.
In the prior art, the formation of general surface protection film is, the one side with the base material that flexible resin molding is formed is provided with the binder layer of micro-bounding force.Binder layer for this surface protection film is, such as, for fitting in the layer with adhesivity (adherence) on the surface, glass, various bloomings etc. of indicating meter.And; when making binder layer be micro-binding property to be the protective membrane on the surface on the surface, glass, various bloomings etc. in order to make to fit in indicating meter to peel off removing from coating surface after using; successfully can peel off, and adhesive residue not occur.As the tackiness agent for surface protection film, the various tackiness agents of acrylic adhesives, urethanum class tackiness agent, rubber adhesive etc. can be enumerated, and the adhesive resins etc. of plastic of poly vinyl acetate resin etc.
In addition, in recent years along with the maximization of indicating meter, when using surface protection film is fitted in large-area display picture, also need to peel off like a cork, the surface protection film of processing ease.For the requirement of the surface protection film can peeled off like a cork during this stripping, in patent documentation 1, propose the surface protection film of the bonding coat had containing silicone compound in acrylic adhesives.But, because silicone compound is the proterties of oily, the surface of adherend can be polluted when stripper surface protective membrane.
In addition; the surface protection film of manufacturing process is after adherend stripping; when this adherend fits blooming on the surface; or during laminating shipment surface protection film; if make adherend surface have residue due to pollution, then produce adherend surface and the closing force between blooming or shipment surface protection film lowly, the shortcoming peeled off.
The closely sealed film of even surface being provided with the layer of silicone being sealed at even surface at least one face of the film with appointed function is proposed in patent documentation 2.If used as the close binder with adherend by silicone resin, then can pollute the surface of adherend after surface protection film is peeled off.
In addition; the surface protection film of manufacturing process is after adherend stripping; when this adherend fits blooming on the surface; or during laminating shipment surface protection film; if make the residue that has of adherend surface due to pollution, then produce closing force between adherend surface and blooming or shipment surface protection film lowly, the shortcoming peeled off.
Therefore, in patent documentation 3, in order to reduce the surface contamination of the adherend that adherend close binder causes, propose at least again to fit once above being sealed at as the barrier film on the surface of the layer of silicone of adherend close binder.But, while the bonding process again needing numerous and diverse barrier film, produce the number of times of again fitting owing to increasing and decreasing barrier film, the problem of the degree change that adherend close binder contaminative reduces.
In addition; use in the surface protection film of the prior art of silicone resin in adherend close binder; the bounding force with close binder reduces and also reduces with the adaptation to barrier film; in the operation manufacturing this surface protection film; float between adherend close binder and the mulch film (being barrier film in patent documentation 3) as the film for the protection of its surface, the problem of resin distortion forming the adherend close binder of the part of floating and so on.Further, when adherend close binder is out of shape, when surface protection film is fitted in adherend, produce bubble and the phenomenon such as to enter, becoming can not the reason of perfect bonding, there is the problem of the deterioration of outward appearance during coating surface protective membrane, the image distortion of indicating meter.
[prior art document]
[patent documentation]
[patent documentation 1] JP 2001-108982 publication
[patent documentation 2] Unexamined Patent 10-95073 publication
[patent documentation 3] JP 2008-55858 publication
Summary of the invention
[inventing the problem that will solve]
The present invention in view of the foregoing, even if provide a kind of bounding force of adherend close binder to reduce, manufacture surface protection film operation in, the surface protection film also do not floated between adherend close binder and the mulch film as the film for the protection of its surface.The invention provides optics, mechanicals that surface protection film and subsides are fitted with described surface protection film; described surface protection film is the adherend close binder with surface smoothing; can peel off like a cork when adherend is peeled off; be tightly sealed at the surface protection film of adherend protection adherend in use in manufacturing process, and the pollution on adherend surface after stripper surface protective membrane is few.
[solving the method for problem]
For solving above-mentioned problem; the present invention is using following as technological thought: even if in order to when weak to the bounding force closing force of adherend; in the operation manufacturing surface protection film; also do not float between adherend close binder and mulch film; and from adherend close binder removing silicone migration composition, the mulch film obtained forming binder layer in the one side of the base material formed by synthetic resin film fits in the surface of the adherend close binder of surface protection film via above-mentioned binder layer.
In order to solve above-mentioned problem; the invention provides a kind of surface protection film; it has the closely sealed film of adherend amassing the adherend close binder that formed by silicone resin at least one side upper strata of transparent substrate and obtain; in order to protect the surface of above-mentioned adherend close binder, the mulch film obtained forming binder layer in the one side of base material fits in the surface of this adherend close binder via above-mentioned binder layer.
In addition, the thickness of above-mentioned adherend close binder is preferably 2 ~ 250 μm.
In addition, the binder layer of above-mentioned mulch film is preferably formed by acrylic adhesives.
In addition, the invention provides a kind of optics, it is fitted with by above-mentioned adherend close binder and peels off from above-mentioned surface protection film the closely sealed film of above-mentioned adherend that above-mentioned mulch film obtains.
In addition; the invention provides arbitrary mechanicals of the mechanicals group being selected from indicating meter, blooming, material of construction, Industrial materials, Medical Instruments, precision instrument etc., it is fitted with by above-mentioned adherend close binder and peels off from above-mentioned surface protection film the closely sealed film of above-mentioned adherend that above-mentioned mulch film obtains.
[invention effect]
According to surface protection film of the present invention, on the surface of adherend close binder, fit for the protection of this adherend close binder, the one side of base material that formed at synthetic resin film forms binder layer and the mulch film that obtains.Thus; even have the surface protection film of the low-down adherend close binder of bounding force adherend closing force; in the operation manufacturing this surface protection film; also do not float between adherend close binder and mulch film, stably can manufacture the surface protection film of the adherend close binder with surface smoothing.
In addition, become the migration due to low-molecular-weight silicone of problem when to use silicone resin on adherend close binder and produce the problem of the pollution of adherend, also when peeling off the above-mentioned mulch film of removing, the binder layer of the mulch film obtained by forming binder layer in one side, the low-molecular-weight silicone that the surface of removing silicone resin is exposed, can reduce the pollution of adherend.
Consequently; pass through the present invention; a kind of surface protection film can be provided; it is the adherend close binder with surface smoothing; can peel off like a cork when peeling off; be tightly sealed at the surface protection film of adherend protection adherend in use in manufacturing process, and the pollution on adherend surface after stripper surface protective membrane is few.
Accompanying drawing explanation
[Fig. 1] shows the sectional view of the example of the general configuration of surface protection film of the present invention.
[Fig. 2] shows the sectional view of the example of the use form of surface protection film of the present invention.
Nomenclature
1 ... transparent substrate, 2 ... adherend close binder, 3 ... binder layer, 4 ... base material, 5 ... the closely sealed film of adherend, 6 ... mulch film, 7 ... optics (adherend), 10 ... surface protection film.
Embodiment
Below based on accompanying drawing, the embodiment according to surface protection film of the present invention is described.
Fig. 1 display is according to the sectional view of an example of surface protection film of the present invention.The closely sealed film 5 of adherend that this surface protection film 10 is obtained by least one side upper strata adherend close binder 2 that amasss the surface smoothing formed by silicone resin at transparent substrate 1 and form the mulch film 6 that binder layer 3 obtains form in the one side of base material 4.The closely sealed film 5 of adherend is provided with adherend close binder 2 at least one side of transparent substrate 1.The one side of the base material 4 that mulch film 6 is formed at resin molding or paper etc. is provided with binder layer 3.In the mode of contact adhesive layer 3 on the surface of adherend close binder 2, the laminating closely sealed film 5 of adherend and mulch film 6.
As the transparent substrate 1 of surface protection film 10 according to the present invention, as long as there is the material of the transparency, have no particular limits.Preferably can use and there is flexible plastic film.Thus, under the state that the adherend of such as optics is fitted with surface protection film, the visual inspection of optics can be carried out.As the plastic film used in transparent substrate 1, the polyester film of polyethylene terephthalate, PEN, polyethylene glycol isophthalate, polybutylene terephthalate class preferably can be used.Except polyester film, as long as tool intensity in need and there is the material of optics suitability, also can use other plastic films.Transparent substrate 1 can be non-stretching film, also can by single shaft or biaxial stretch-formed, in addition, and the plastic film of axial angle that also can be restrained stretching multiple or formed with stretch crystallization.
As the thickness of transparent substrate 1, there is no particular limitation, and such as preferred thickness is about 12 ~ 125 μm, and especially more preferably thickness is 20 ~ 75 μm.If the thickness of transparent substrate 1 is below 12 μm, then the rigidity of transparent substrate is weak, and operation is had any problem.In addition, if the thickness of transparent substrate 1 is more than 125 μm, then rigidity too increase become be difficult to operation.In addition, price uprises, and is disadvantageous economically.On transparent substrate 1, as required, on the face (the top of Fig. 1 and Fig. 2) of the opposition side of adherend close binder 2, can lamination be the hard coat etc. preventing the stain-proofing layer of the object of surface contamination, antistatic layer, prevent cut.In addition, easy the to be adhering process that Corona discharge Treatment or tackifier coating (ア Application カ mono-コ mono-ト) process etc. also can be carried out on the face contacted with adherend close binder 2 of transparent substrate 1.
Adherend close binder 2 according to surface protection film 10 of the present invention is formed by transparent silicone resin, in order to suppress the surface contamination of adherend, is solid under normal temperature, preferably uses and silicone polymer is cross-linked the material obtained.The cross-linked form of silicone polymer can be the material of known crosslinking reaction of cationic polymerization type, peroxide curing type etc. of sulfydryl-alkene (エ Application チ オ ー Le) response type that the condensation reaction type of addition reaction-type, Si-H base and the Si-OH radical reaction that Si-H base and Si-vinyl react, sulfydryl and vinyl react, ester ring type epoxy group(ing).Silicone is shifted, preferred addition reaction-type, sulfydryl-alkene reaction type or cationic polymerization type from the view point of suppression from the adherend close binder 2 of surface protection film to adherend.
The goods form of the silicone polymer before making it crosslinking reaction can be solvent-borne type, emulsion-type, no-solvent type etc., from for optical applications etc., and preferred solvent type or no-solvent type.
Thickness for the silicone resin of the adherend close binder 2 of surface protection film 10 according to the present invention is preferably 2 ~ 250 μm.Thickness then declines to the adaptation of adherend less than 2 μm.Thickness is more than 250 μm, although then can use as surface protection film, not preferred from the processibility decline of the rising of material cost, silicone resin.From the view point of to the adaptation of adherend and manufacturing cost, the thickness for the silicone resin of adherend close binder 2 is particularly preferably about 5 ~ 30 μm.
In addition, as the silicone resin layer of adherend close binder 2, same with the transparent substrate 1 of the closely sealed film of adherend 5 forming surface protection film, be necessary for transparent.The total light transmittance of the closely sealed film 5 of preferred adherend is more than 85%.
In addition, preferred adherend close binder 2 is rich in flexibility, as storage modulus, such as, and preferably 25 DEG C about 1.0 × 10
5pa ~ 5.0 × 10
7pa.
In addition, in order to reduce the gas cloud produced between adherend and adherend close binder 2, closing force is stablized, the surface of preferred adherend close binder 2 concavo-convex the least possible and level and smooth.Therefore, the center line average roughness Ra on the surface of preferred adherend close binder 2 is 0.05 ~ 1.2 μm.More preferably the center line average roughness Ra on surface is 0.05 ~ 0.6 μm, and particularly preferably the center line average roughness Ra on surface is 0.05 ~ 0.2 μm.
In addition, in surface protection film 10 according to the present invention, in order to the bounding force adaptation of the adherend to adherend close binder 2 being set as the value of appropriateness, visco-elasticity, the cross-linking density of the silicone resin used in adjustment adherend close binder 2.Usually, bounding force adaptation is adjusted by the addition etc. of the linking agent of the number, methylhydrogenpolysi,oxane etc. of the functional group in plus-minus adjustment silicone polymer.As required, polyorganosiloxane resin etc. can also be added, with the additive under the normal temperature that silicone polymer consistency is good being solid.
In addition, be the adaptation between the adherend close binder 2 that improvement is formed according to transparent substrate 1 and the silicone resin of surface protection film 10 of the present invention, as required, silane coupling agent etc. can be added in silicone resin.
In order to form adherend close binder 2 on the transparent substrate 1 of surface protection film 10 according to the present invention, as the method for lamination silicone resin, known method can be used to carry out.Generally can enumerate comma coating method (コ Application マ コ mono-ト method), Meyer rod coating method, gravure coating process, inverse roller coating cloth method, die slot coating method, curtain coating processes etc.Be coated on silicone resin on transparent substrate 1 by being heating and curing, ultraviolet curing, the method such as electrocuring, make it to occur curing reaction, form silicone resin epithelium.
In order to protect according to surface protection film 10 of the present invention, the surface of adherend close binder 2 that formed by silicone resin; and; except the free composition of silicone of whereabouts adherend migration, the one side being fitted in base material 4 is formed the mulch film 6 that binder layer 3 obtains on the surface of adherend close binder 2.Mulch film 6 is that coating adhesive formation binder layer 3 obtains in a known manner on the base material 4 of plastic film or paper etc.
The bounding force of the tackiness agent used in the binder layer 3 of mulch film 6 has no particular limits, and can use from micro-material being bonded to strong bonding.In addition, the coating thickness of binder layer 3 used in mulch film 6 also has no particular limits, and from the viewpoint of adhesion characteristic and cost, preferred thickness is about 1 ~ 40 μm.
In addition, as the tackiness agent in mulch film 6, the tackiness agent of acrylic adhesives, urethanum class tackiness agent, rubber adhesive etc. can be enumerated, and the adhesive resins etc. of plastic of poly vinyl acetate resin etc.In order to remove the free composition of the silicone moved from the surface of adherend close binder 2 to adherend, and suppressing binder constituents from the binder layer 3 of mulch film 6 to the migration of adherend close binder 2, the tackiness agent used in mulch film 6 is more preferably acrylic adhesives, urethanum class tackiness agent, rubber adhesive.
In addition, the bounding force of binder layer used in mulch film 6 take JISZ-0237 as standard, be 180 ° to stainless steel plate peel angle, peeling rate be 300mm/min measure time, preferably at about 0.05 ~ 20N/25mm.The bounding force of the binder layer of mulch film 6 at below 0.05N/25mm, then becomes insufficient from adherend close binder removing silicone migration composition, has adherend to pollute the worry increased.The bounding force of the binder layer of mulch film 6 is at more than 20N/25mm, then peeling force when peeling off mulch film from surface protection film uprises, and peels off and becomes difficult, thus not preferred.
In mulch film 6 use base material 4 can use following any one: the plastic film of polyester, polymeric amide, polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyimide etc., the paper base material of good quality paper, kraft paper, enamelled paper, clay coated paper (Network レ イ コ mono-ト Paper), glassine paper etc., and, the resin layered paper etc. that laminated polyethylene or polypropylene obtain on above-mentioned paper base material.Because the base material 4 used in mulch film 6 is for being stripped the material of removing, transparent, translucent, opaquely all can to use.
When surface protection film 10 according to the present invention is used for optical applications, as the base material 4 for mulch film 6, compared with worrying that paper powder is attached to the paper base material on adherend, the base material preferably formed by plastic film.In addition, consider the visual inspection operation of carrying out as the quality inspection that surface protection film 10 is own, more preferably there is the polyester film of the many outstanding characteristic of the high transparency etc.
When release band voltage influence purposes when peeling off mulch film 6 from surface protection film 10, by applying static inhibitor on the one or both sides of the base material 4 of mulch film 6, release band voltage when peeling off mulch film 6 can be suppressed.
Method mulch film 6 being fitted in the closely sealed film of adherend 5 that lamination adherend close binder 2 on transparent substrate 1 obtains according to the present invention can use known method.Such as, via binder layer 3, the mulch film 6 that lamination binder layer 3 obtains on base material 4 is in advance conformed to the method on the face of the adherend close binder 2 of the closely sealed film 5 of adherend, coating adhesive on the adherend close binder 2 of the closely sealed film 5 of adherend, after binder layer 3 is dry, the base material 4 of laminating mulch film 6 completes the method for mulch film 6.
When making surface protection film according to the present invention fit in adherend, as shown in Figure 2, by the closely sealed film 5 of adherend peeled off mulch film 6 from surface protection film 10 and obtain, adherend 7 is fitted in via adherend close binder 2.
As adherend 7, the material of construction of plastic plate, sheet glass etc. and the precision instrument of Industrial materials, Medical Instruments, semiconductor manufacturing pertinent instruments etc. etc. of metal sheet, acrylic board etc. of various bloomings, stainless steel plate, aluminium sheet etc. of image display body, lens array sheet, contact panel, Polarizer, diffusing panel, polarizer, light guiding plate etc. of the optics of camera lens, glasses lens, head lamp of vehicle lens, optical fiber etc., various indicating meter (PDP, LCD, organic EL etc.) can be enumerated.
According to the mechanicals of optics of the present invention, indicating meter, blooming, material of construction, Industrial materials, Medical Instruments, precision instrument etc.; for the closely sealed film of the adherend obtained by surface protection film according to the present invention being fitted in the material that sticky surface obtains; thus can peel off like a cork when peeling off; adherend is tightly sealed in use in manufacturing process; keeping, inspection, conveying etc. can be implemented to protect the state of sticky surface (being preferably even surface), and few in the pollution of peeling off the sticky surface after the closely sealed film of adherend.
The closely sealed film of adherend that lamination adherend close binder on the two sides of transparent substrate obtains can be had according to surface protection film of the present invention.In this case, in order to the mulch film on the surface protecting adherend close binder becomes two panels, the adherend close binder on the two sides of the closely sealed film of adherend can be fitted in respectively.
[embodiment]
Below, the present invention is further illustrated by embodiment.
(preparation of the surface protection film of embodiment 1)
Be in the one side of polyethylene terephthalate (PET) resin molding of 50 μm at thickness, to make the thickness after dry solidification be the silicone resin (adding 5 weight parts waste river chemistry POLY-201 processed, catalyzer CAT-211 relative to host 100 weight part) that the mode of 25 μm is coated with cationic polymerization type, use ultraviolet irradiation machine carries out accumulated light 1000mJ/cm
2the UV radiation treatment of × 2 times, makes silicone resin solidify to form adherend close binder.Then, the mulch film with the micro-binder layer of acrylic acid or the like is fitted in the surface of the adherend close binder that silicone resin is formed via this micro-binder layer, obtain the surface protection film of embodiment 1.Like this, above-mentioned mulch film is, in the one side of polyethylene terephthalate (PET) resin molding of thickness 38 μm, with make the thickness of dried binder layer be the mode of 25 μm be coated with acrylic adhesives (2-EHA and vinylformic acid 2-hydroxy methacrylate 95/5 multipolymer and isocyanates solidifying agent (Japanese Port リ ウ レ タ Application industry is made, コ ロ ネ mono-ト L-45,2 weight parts are added relative to host 100 weight part) material that is mixed to get), the material that dry lamination obtains in the heated air circulation type baking oven of 100 DEG C.
(preparation of the surface protection film of embodiment 2)
As silicone resin replace with sulfydryl/vinyl response type silicone resin (by SHIN-ETSU HANTOTAI chemical industry X-62-7028A and X-62-7028B with 100/10 the material that is mixed to get of ratio); adherend close binder is formed in the mode that the thickness after dry solidification is 50 μm; make and make the thickness of binder layer be the mulch film of 15 μm; in addition; similarly to Example 1, the surface protection film of embodiment 2 is obtained.
(preparation of the surface protection film of embodiment 3)
As silicone resin replace with addition reaction-type silicone resin (by SHIN-ETSU HANTOTAI chemical industry X-62-1873 and catalyst P L-56 with 100/2 the material that is mixed to get of ratio); uviolizing was replaced to form adherend close binder with dry 3 minutes in the heated air circulation type baking oven of 120 DEG C; in addition; similarly to Example 1, the surface protection film of embodiment 3 is obtained.
(preparation of the surface protection film of embodiment 4)
Make the coating thickness of silicone resin be 5 μm and form adherend close binder, in addition, similarly to Example 3, obtain the surface protection film of embodiment 4.
(preparation of the surface protection film of embodiment 5)
As silicone resin replace with add-on type silicone adhesive agent (by SHIN-ETSU HANTOTAI chemical industry X-40-3306 and catalyst P L-50T with 100/0.2 the material that is mixed to get of ratio) form adherend close binder; in addition; similarly to Example 3, the surface protection film of embodiment 5 is obtained.
(preparation of the surface protection film of embodiment 6)
The solvent-borne type silicone resin (East レ グ ウ コ mono-ニ Application グ シ リ コ mono-Application SD7223 and catalyst S RX-212Cat replacing with add-on type as silicone resin with 100/0.6 the material that is mixed to get of ratio); make the coating thickness of silicone resin be 2 μm and form adherend close binder; as mulch film; use the strong tackiness agent of acrylic acid or the like (ト mono-ヨ mono-ケ system Co., Ltd. system; オ リ バ イ Application BPS-5127); make the thickness of binder layer be 15 μm and make mulch film; in addition; similarly to Example 3, the surface protection film of embodiment 6 is obtained.
(preparation of the surface protection film of embodiment 7)
Make the coating thickness of silicone resin be 250 μm, time of drying is form adherend close binder in 5 minutes, in addition, similarly to Example 3, obtains the surface protection film of embodiment 7.
(preparation of the surface protection film of embodiment 8)
Substitute as micro-binder layer of the acrylic acid or the like of mulch film uses strong tackiness agent (ト mono-ヨ mono-ケ system Co., Ltd. system of rubber-like; オ リ バ イ Application BPS-2411); make the thickness of binder layer be 15 μm and make mulch film; in addition; similarly to Example 1, the surface protection film of embodiment 8 is obtained.
(surface protection film of comparative example 1)
Use thickness is the mulch film of polyethylene terephthalate (PET) the resin molding replacement embodiment 1 of 38 μm, in addition, similarly to Example 1, obtains the surface protection film of comparative example 1.
(surface protection film of comparative example 2)
Use thickness is the mulch film of polyethylene terephthalate (PET) the resin molding replacement embodiment 3 of 38 μm, in addition, similarly to Example 3, obtains the surface protection film of comparative example 2.
(surface protection film of comparative example 3)
Make the coating thickness of silicone resin be 1 μm and form adherend close binder; the strong tackiness agent of acrylic acid or the like (ト mono-ヨ mono-ケ system Co., Ltd. system is used as mulch film; オ リ バ イ Application BPS-5127); make the thickness of binder layer be 15 μm and make mulch film; in addition; similarly to Example 3, the surface protection film of comparative example 3 is obtained.
(surface protection film of comparative example 4)
With acrylic adhesives (2-EHA and vinylformic acid 2-hydroxy methacrylate 95/5 multipolymer and isocyanates solidifying agent (Japanese Port リ ウ レ タ Application industry is made; コ ロ ネ mono-ト L-45; 2 weight parts are added relative to host 100 weight part) material that is mixed to get) replace silicone resin to form adherend close binder; the barrier film adopting the stripper of silicone to carry out lift-off processing is used as mulch film; in addition; similarly to Example 3, the surface protection film of comparative example 4 is obtained.
Method according to evaluation test of the present invention and test-results are below shown.
(bounding force of surface protection film)
Surface protection film being cut into width dimensions is 25mm, makes the test film of surface protection film, divests laminating mulch film thereon.The rubber rollers of 2kg is used to be fitted on the surface of sheet glass by the test film of surface protection film in the mode not being mixed into bubble.Then, place after 1 hour under the testing circumstance of 23 DEG C × 50%RH, peel off the stripping strength that records to 180 ° of directions as bounding force to use tension testing machine using the speed of 300mm/min.
< wettability >
Surface protection film is cut into the test film of width dimensions 50mm × length dimension 100mm.Divest laminating mulch film thereon, make the adherend close binder of surface protection film closely sealed on the surface of sheet glass in the mode that width dimensions 50mm × length dimension 20mm contacts.Thereafter, hand is left from the test film of surface protection film, measure the elapsed-time standards that this test film utilizes its deadweight closely sealed on a glass.Hand is left, using elapsed-time standards closely sealed for the 90mm of the length direction reaching this test film as wettability from the test film of surface protection film.
The contaminative > on < adherend surface
Surface protection film is cut into the test film of width dimensions 50mm × length dimension 100mm.Divest laminating mulch film thereon, using the rubber rollers of 2kg, in the mode not being mixed into bubble, the test film of surface protection film is fitted in thickness is on the surface of polyethylene terephthalate (PET) resin molding (Mitsubishi Plastics Inc T100-38) of 38 μm.Thereafter, place after 24 hours under the testing circumstance of 23 DEG C × 50%RH, strip the test film of surface protection film, use contact angle measurement to determine the water contact angle on the adherend surface of the test film of surface in contact protective membrane.By comparing with blank sample (water contact angle of simple PET film), judge the degree of the pollution on adherend surface.The water contact angle of blank PET film is 65 °.The index (K) of the contaminative on adherend surface is by the water contact angle measurement value ÷ 65-1 of K=(on test film) × the calculating formula of 100 calculates, and this numerical value is less, means that the contaminative on adherend surface is fewer.
(the laminating outward appearance in the manufacturing process of surface protection film)
Use small-sized test apparatus for coating (aboveground metal industry Co., Ltd. system, trade(brand)name テ ス ト コ mono-タ mono-), silicon-coating ketone resin over the transparent substrate, dry, after carrying out uviolizing as required, the mulch film that laminating is specified also reels.Visual observation, through the outward appearance of the surface protection film of winding, confirms that mulch film is with or without floating (having bubble-free between mulch film and adherend close binder).
To the surface protection film of embodiment 1 ~ 8 and comparative example 1 ~ 4, the test-results of laminating outward appearance in the contaminative on the bounding force of surface protection film shown in table 1 ~ 3, wettability, adherend surface, the manufacturing process of surface protection film etc.
[table 1]
[table 2]
[table 3]
Can judge as follows from the test-results shown in table 1 ~ 3.
From the test-results of embodiment 1 ~ 8; although the adherend close binder of surface protection film of the present invention has very weak bounding force; but obtain not floating in the manufacturing process of surface protection film, and the surface protection film of the little excellent properties of the contaminative with adherend surface.
On the one hand; substituting of mulch film as the adherend close binder of protection surface protection film only uses in the comparative example 1 of PET film; in the manufacturing process of surface protection film; there is floating between adherend close binder and PET film; the not only appearance poor of surface protection film, the contaminative on adherend surface also becomes greatly (result of difference).In addition; compared with comparative example 1; in the comparative example 2 using the material slightly high to the bounding force of the adherend of the adherend close binder of surface protection film; in the manufacturing process of surface protection film; although there is not floating between adherend close binder and mulch film, the contaminative on adherend surface but becomes larger.
Be that in the comparative example 3 of 1 μm, adherend close binder does not adhere to adherend, becomes the material of the function that can not play as surface protection film at the thickness of the adherend close binder making surface protection film.In addition, use in the adherend close binder of surface protection film in the comparative example 4 of micro-tackiness agent of acrylic acid or the like, obtain bounding force high, and to the also poor result of adherend wettability of the surface.
[possibility of industrial utilization]
As the purposes of surface protection film of the present invention, can enumerate in detail: camera lens, glasses lens, head lamp of vehicle lens, the optics of optical fiber etc., various indicating meter (PDP, LCD, organic EL etc.) image display body, lens array sheet, contact panel, Polarizer, diffusing panel, polarizer, the various bloomings of light guiding plate etc., at stainless steel plate, the metal sheet of aluminium sheet etc., the plastic plate of acrylic board etc., the material of construction of sheet glass etc. and Industrial materials, Medical Instruments, the surface protection film used in the surface protection of the precision instrument of semiconductor manufacturing pertinent instruments etc. etc.Especially, in the production process etc. of the optical goods etc. of optics, display surface, glass, various bloomings etc., the surface of these optical goods etc. can be fitted in for the protection of surface.
Claims (6)
1. a surface protection film, it is have level and smooth adherend the close binder closely sealed film of adherend obtained and the surface protection film forming the mulch film that binder layer obtains in the one side of base material that the center line average roughness Ra amassing the surface formed by silicone resin at least one side upper strata of transparent substrate is 0.05 ~ 1.2 μm, protect the surface of above-mentioned adherend close binder, the above-mentioned mulch film can peeled off when the closely sealed film of above-mentioned adherend fits in adherend by above-mentioned adherend close binder fits in the surface of this adherend close binder via above-mentioned binder layer, take JISZ-0237 as standard it is being 180 ° to stainless steel plate peel angle, when peeling rate is 300mm/min mensuration, the bounding force of above-mentioned binder layer is 0.05 ~ 20N/25mm.
2. surface protection film according to claim 1, wherein the thickness of above-mentioned adherend close binder is 2 ~ 250 μm.
3. surface protection film according to claim 1 and 2, wherein the binder layer of above-mentioned mulch film is formed by acrylic adhesives.
4. surface protection film according to claim 1 and 2, wherein the storage modulus of above-mentioned adherend close binder is at 25 DEG C 1.0 × 10
5pa ~ 5.0 × 10
7pa.
5. an optics, it peels off by the above-mentioned adherend close binder surface protection film be fitted with according to any one of Accessory Right requirement 1 to 4 the closely sealed film of above-mentioned adherend that above-mentioned mulch film obtains.
6. be selected from arbitrary mechanicals of the mechanicals group be made up of indicating meter, blooming, material of construction, Industrial materials, Medical Instruments, precision instrument, it peels off by the above-mentioned adherend close binder surface protection film be fitted with according to any one of Accessory Right requirement 1 to 4 the closely sealed film of above-mentioned adherend that above-mentioned mulch film obtains.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2012-002003 | 2012-01-10 | ||
| JP2012002003A JP5855465B2 (en) | 2012-01-10 | 2012-01-10 | Surface protective film, optical component on which it is adhered, and industrial product |
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| CN103194152A CN103194152A (en) | 2013-07-10 |
| CN103194152B true CN103194152B (en) | 2015-10-28 |
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| JP (1) | JP5855465B2 (en) |
| KR (1) | KR101429959B1 (en) |
| CN (1) | CN103194152B (en) |
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| JP2015158552A (en) * | 2014-02-24 | 2015-09-03 | 信越ポリマー株式会社 | Member for display panel and manufacturing method of member for display panel |
| JP2016003301A (en) * | 2014-06-18 | 2016-01-12 | 日東電工株式会社 | Surface protective film and transparent conductive film with surface protective film |
| JP6243313B2 (en) * | 2014-10-15 | 2017-12-06 | 藤森工業株式会社 | Anisotropic adhesive sheet |
| JP6400430B2 (en) * | 2014-10-21 | 2018-10-03 | リンテック株式会社 | Curable composition for silicone coating layer and silicone coating sheet |
| JP6377541B2 (en) * | 2015-01-20 | 2018-08-22 | 富士フイルム株式会社 | Flexible device manufacturing method and flexible device laminate |
| JP6587811B2 (en) * | 2015-02-24 | 2019-10-09 | 日東電工株式会社 | Thermally peelable adhesive sheet |
| JP6226904B2 (en) * | 2015-03-26 | 2017-11-08 | 藤森工業株式会社 | Surface protective film and optical component to which it is attached |
| AT517266B1 (en) * | 2015-05-27 | 2017-03-15 | Zkw Group Gmbh | COMPOSITE ASSEMBLY FOR COVERING A FLAT LIGHT |
| KR20170023717A (en) * | 2015-08-24 | 2017-03-06 | 닛토덴코 가부시키가이샤 | Optical member with surface protection film |
| CN105868737B (en) * | 2016-04-29 | 2021-12-07 | 格科微电子（上海）有限公司 | Optical fingerprint identification device and forming method thereof |
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| JP3570545B2 (en) | 2000-05-29 | 2004-09-29 | 東洋紡績株式会社 | Polymer film and surface protective film using the same |
| JP2005075959A (en) * | 2003-09-01 | 2005-03-24 | Dow Corning Toray Silicone Co Ltd | Adhesive silicone elastomer sheet |
| JP5295533B2 (en) * | 2006-10-31 | 2013-09-18 | 日東電工株式会社 | Surface protective film and optical film with surface protective film |
| KR100838461B1 (en) | 2007-01-24 | 2008-06-16 | 율촌화학 주식회사 | Surface protective film |
| JP2008217859A (en) * | 2007-02-28 | 2008-09-18 | Tomoegawa Paper Co Ltd | Protective film for optical pickup photodetector |
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- 2012-01-10 JP JP2012002003A patent/JP5855465B2/en active Active
- 2012-10-26 TW TW101139650A patent/TWI495706B/en active
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Patent Citations (3)
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| CN101384683A (en) * | 2006-02-28 | 2009-03-11 | 琳得科株式会社 | Protection sheet for coating film |
| CN101802122A (en) * | 2007-09-20 | 2010-08-11 | 东洋纺织株式会社 | Adhesive sheet, upper electrode for touch panel, and image display device |
| TW201139590A (en) * | 2010-01-13 | 2011-11-16 | Dow Corning Toray Co Ltd | Re-adherable silicone-based adhesive composition, sheet-shaped base material having re-adherable adhesive layer obtained by curing said composition, and use of said base material as protective film or affixing sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5855465B2 (en) | 2016-02-09 |
| TW201514274A (en) | 2015-04-16 |
| TWI518165B (en) | 2016-01-21 |
| TW201329186A (en) | 2013-07-16 |
| TWI495706B (en) | 2015-08-11 |
| KR20130082058A (en) | 2013-07-18 |
| JP2013141761A (en) | 2013-07-22 |
| CN103194152A (en) | 2013-07-10 |
| KR101429959B1 (en) | 2014-08-14 |
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