CN101561523B - Method for producing reflective film with microprism array structure - Google Patents
Method for producing reflective film with microprism array structure Download PDFInfo
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- CN101561523B CN101561523B CN200910098915XA CN200910098915A CN101561523B CN 101561523 B CN101561523 B CN 101561523B CN 200910098915X A CN200910098915X A CN 200910098915XA CN 200910098915 A CN200910098915 A CN 200910098915A CN 101561523 B CN101561523 B CN 101561523B
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Abstract
The invention relates to a method for producing a reflective film with a microprism array structure. The invention overcomes the defects of poor hardness, scratch resistance, thermal resistance and solvent resistance of a microprism, poor product consistency, low production speed, low working efficiency and the like existing in the prior art. The invention adopts an endless belt-shaped mould of which a protruded continuous precise microprism array structure is arranged on the outer surface and comprises the following production steps that: a resin film is coated with photosensitive resin and then subjected to drying, heated film pressure and quickly solidification by UV light irradiation, so that the resin film coated with the photosensitive resin and the microprism structure on the photosensitive resin layer jointly form a laminated film, and the laminated film is cooled to obtain the reflective film with the microprism array structure. The method has the advantages of simple and convenient operation, high production speed and high working efficiency; and the formed microprism has the advantages of better hardness, scratch resistance, thermal resistance and solvent resistance, and good product consistency.
Description
Technical field
The present invention relates to a kind of production method of reflective membrane, relate in particular to a kind of production method with reflective membrane of microprism array structure.
Background technology
Reflectorized material with microprism array structure is owing to its remarkable reflex reflection performance, the fields such as different kinds of roads traffic safety facilities, sign board and vehicle passive security protective device that are applied to more and more widely.So-called microprism array structure is meant by three structures that plane perpendicular to each other constituted each other, can carry out total internal reflection to the incident light from front surface, thereby improves reflection of incident light efficient greatly.Plane based on this structure is not limited to certain specific dimensions or shape, also is not subject to the optical axis direction of prism unit, claims this structure to be " cube pyramid ", " pyrometric cone " or " trihedral " usually.
According to the difference of micro-prism type reflecting material application, the forming method of its mould is divided into filing substantially and floats the method at quarter continuously.By the mould of filing gained, specification is less and thick, and the size of microprism is bigger, only is suitable for injection mo(u)lding and duplicates, and the reflectorized material of Sheng Chaning can only be applicable to fields such as vehicle passive security protective device and road profile sign thus.
In order to bring into play the advantage of the micro-prism type reflective membrane that is used for the traffic safety identification purposes, and can adopt the fexible film form, this just need reduce the size of corner unit greatly; In addition, in order to realize function with its light source of light reflected back, also must keep three reflective surfaces of corner type reflector bright and clean, level and smooth, and vertical missing each other should be within a few minutes, as exceed this limit, or reflective surface is bright and clean, smoothness is not high, all will cause significant light scatter, thereby makes the light intensity decreasing that ad-hoc location obtains.Thereby for many years, people attempt adopting floating carving method to make the corner reflective membrane always.
U.S. Patent number 4601861, in open day on July 22nd, 1986, the patent of invention that the name of innovation and creation is called " being used at floating method and the device thereof of carving the precision optics map grid on tree resin layer or the laminated film " discloses a kind of on the film surface that the transparent thermoplastic material makes or carve the method and the device thereof of the corner type reflecting unit map grid that repeats in the laminated film come-up that described material is made.The instrument at quarter that floats continuously of thin metal unit form is adopted in this invention, and its outside surface has floating needle drawing lattice; Described instrument along closed path successively by heating station and cooling stations, in heating station, floating the corresponding site of instrument at quarter and the temperature of map grid rises to more than the film glass attitude transition temperature, be softened and its surface formation and the corresponding to pattern of floating needle drawing lattice up to film, and in cooling stations, the temperature that floating quarter, instrument was heated the position is reduced to below the described glass transition temperature, is cooled off fast through the floating material of carving moulding, thereby makes film hardening; Then film is peeled off from instrument.Described method and apparatus can carry out continued operation, has simplified technology in the past greatly, but also has many deficiencies:
1, described film need be heated in heating station on the glass temperature in the microprism forming process, its preference temperature is 425-475 ℉, it is 218-246 ℃, in cooling stations, be cooled under the glass temperature again, promptly need be cooled to 180 ℉, be equivalent to below 82 ℃, the temperature difference of heating and cooling is bigger, and film has bigger specific heat, therefore the time of its heating and cooling is longer relatively, for the endless belt-shaped mould of certain-length, this must influence its speed of production, in this patent of invention disclosed laminated film be with 0.8-1.2 rice/minute speed by floating engraving device, cause the reduction of its work efficiency.
2, in the heating and cooling process of above-mentioned long period, shaped article can produce deformation, and then causes consistency of product relatively poor.
3,, be the hardness, scratch resistance of the formed microprism of thermoplasticity resin of linear structure, heat-resisting and solvent resistance must be restricted, thereby also restricted the following process and the usability of product because the film that adopts is the thermoplasticity material;
Summary of the invention
Technical matters to be solved by this invention be overcome the hardness of the microprism that exists in the above-mentioned prior art and scratch resistance, and heat-resisting, solvent resistance is relatively poor, consistency of product is not good enough, speed of production is on the low side, the not high defective of work efficiency, a kind of production method of new reflective membrane is provided, this method can make that the microprism performance of formation significantly promotes, good product consistency, and have technology easy, obviously improve the advantage of speed of production, high efficiency.
In order to solve technique scheme, the present invention is achieved by the following technical solutions:
Production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, endless belt-shaped mould said method comprising the steps of along the loop to-and-fro movement:
(1) applies one deck optical light sensitive adhesive at resin film one side surface;
(2) the resin film that will apply optical light sensitive adhesive carries out drying;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 60～180 ℃, described optical light sensitive adhesive fills up the gap of the microprism array structure of projection, thereby forms accurate microprism array structure;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 40～-10 ℃, this laminated film is the reflective membrane with microprism array structure.
The invention provides and a kind ofly on the resin film, apply optical light sensitive adhesive, and step productions such as drying, heating mould, UV photocuring and cooling have the method for microprism array structure reflective membrane.It is crosslinked netted that its molecular structure of optical light sensitive adhesive after UV light solidifies fast is, and compares with the thermoplasticity resin that is linear structure, has more excellent hardness and scratch resistance, and heat-resisting, solvent resistance; And the characteristic that UV solidifies makes to have tangible speed of production advantage for the ring mould of certain-length.The typical production speed that the present invention can provide be 5-7 rice/minute, can reach 6 times of aforementioned prior art basically, greatly promoted work efficiency, and then also guaranteed consistency of product.
Production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, endless belt-shaped mould said method comprising the steps of along the loop to-and-fro movement:
(1) applies one deck optical light sensitive adhesive at resin film one side surface;
(2) the resin film that will apply optical light sensitive adhesive carries out drying;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, the opposite side surface of resin film is attached the last layer backing film; The resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 60～180 ℃, described optical light sensitive adhesive fills up the gap of the microprism array structure of projection, thereby forms accurate microprism array structure;
(4) under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould through what step (3) was handled, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 40～-10 ℃, this laminated film is the reflective membrane with microprism array structure.
The use of backing film can effectively prevent the deformation of resin film in heating process, and avoid a side surface of the uncoated optical light sensitive adhesive of resin film to be scratched, so the resin film of optical light sensitive adhesive that has applied drying has attached one deck backing film from entering heating mould process on the opposite side surface of resin film; Through the UV rayed, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film; Laminated film promptly becomes the reflective membrane with microprism array structure through cooling.
Above-mentioned production method with reflective membrane of microprism array structure, endless belt-shaped mould are the flexible metal band.Because therefore described endless belt-shaped mould must need flexible preferably along the loop to-and-fro movement; In addition, for accurately duplicating and be convenient to the laminated film back that completes, the homogeneity, the microprism array structure that guarantee to heat and cool off peel off from mould, described mould should have temperature tolerance, dimensional stability and good antistick characteristic, so should select metal material to make this mould.
Above-mentioned production method with reflective membrane of microprism array structure, endless belt-shaped mould adopt the nickel metal material to make.Nickel has excellent temperature tolerance and dimensional stability, during fast by the heating and cooling station, can effectively reduce the variation of die size at endless belt-shaped mould, thereby guarantees accurately duplicating of on tree resin layer micro-prism structure; In addition, nickel has anti-adhesion performance preferably, the laminated film that is engaged on the endless belt-shaped mould of being made by the nickel metal material can be peeled off from mould with less power after by the cooling station, the distortion thereby assurance micro-prism structure that duplicated, precision can not be stretched.
Above-mentioned production method with reflective membrane of microprism array structure, resin film can adopt acrylate material, makrolon material or both laminated films.Through the reflective membrane that the present invention produced with microprism array structure, in actual use, its resin pellicular front is exposed in the outdoor environment all the time, in view of the excellent weather resistance and the chemical resistance of acylate film, polycarbonate film, product of the present invention can be used muchly out of doors; Simultaneously because optical characteristics of the present invention, need the surface tree ester film to have excellent light transmission, so that passing surface tree ester film arrival microprism, the incident optical energy maximum probability carries out total internal reflection, thereby guarantee that product of the present invention has excellent reflex reflection performance, and acrylate and polycarbonate film all have and be higher than 90% transmittance, so the carrier that the present invention preferentially selects for use acylate film, polycarbonate film or both laminated films to adhere to as optical light sensitive adhesive.
Above-mentioned production method with reflective membrane of microprism array structure, in heating mould process, the temperature that endless belt-shaped mould is heated part is controlled at 70～100 ℃.
Above-mentioned production method with reflective membrane of microprism array structure, in cooling procedure, the laminated film of described curing molding reaches and the endless belt-shaped mold temperature of its engagement is lowered to 30～10 ℃.
Above-mentioned production method with reflective membrane of microprism array structure, backing film adopts polyester material, polypropylene material or polyamide material.Because mylar, polypropylene film or polyamide film have good temperature tolerance and dimensional stability, so use above-mentioned material as backing film, can prevent the deformation of resin film in heating process better, and avoid a side surface of the uncoated optical light sensitive adhesive of resin film to be scratched.
The present invention has following beneficial effect:
1, with prior art in the moulding of microprism need in heating station, be heated on the glass temperature, the process that is cooled in cooling stations under the glass temperature again compares, the present invention adopts and to apply the light-cured type resin and through the method for UV photocuring on membraneous material, simple, and the feasible ring mould for certain-length of the characteristic that UV solidifies, have tangible speed of production advantage, promoted work efficiency.
2, in the present invention, UV rayed by certain intensity makes tree resin layer and the rapid curing molding of micro-prism structure, significantly reduced the time in the heating and cooling process, obviously reduced the temperature difference in two processes, thereby reduced the chance of product deformation, guaranteed that product has consistance preferably.
3, in the present invention, through apply, heating mould and UV its molecular structure of optical light sensitive adhesive after solidifying is crosslinked netted, has more excellent hardness and scratch resistance, and heat-resisting, solvent resistance than the thermoplasticity resin that is linear structure of available technology adopting.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but they are not limitations of the present invention:
Embodiment 1
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, and endless belt-shaped mould is along the loop to-and-fro movement.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the acrylate material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 60 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 40 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 2
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the flexible metal band.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the acrylate material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, the opposite side surface of resin film is attached the last layer backing film, backing film adopts polyester material; The resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 60 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould through what step (3) was handled, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 40 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 3
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts makrolon material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 180 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to-10 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 4
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts makrolon material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, the opposite side surface of resin film is attached the last layer backing film, backing film adopts polypropylene material; The resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 180 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould through what step (3) was handled, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to-10 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 5
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the compound substance of acrylate material and polycarbonate;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 70 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 30 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 6
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the compound substance of acrylate material and polycarbonate;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, the opposite side surface of resin film is attached the last layer backing film, backing film adopts polyamide material; The resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 70 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould through what step (3) was handled, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 30 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 7
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the flexible metal band.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the acrylate material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 100 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 10 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 8
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the flexible metal band.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the acrylate material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, the opposite side surface of resin film is attached the last layer backing film, backing film adopts polyester material; The resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 100 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould through what step (3) was handled, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 10 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 9
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts makrolon material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 60 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to-10 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 10
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts makrolon material;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, the opposite side surface of resin film is attached the last layer backing film, backing film adopts polypropylene material; The resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 60 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould through what step (3) was handled, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to-10 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 11
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the compound substance of acrylate material and polycarbonate;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 180 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 40 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Embodiment 12
A kind of production method with reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, this microprism array structure is the reverse of desiring at the microprism array structure of described reflective membrane surface working, endless belt-shaped mould is along the loop to-and-fro movement, and endless belt-shaped mould adopts the nickel metal material to make.Production method step of the present invention is as follows:
(1) apply one deck optical light sensitive adhesive at resin film one side surface, the resin film adopts the compound substance of acrylate material and polycarbonate;
(2) the resin film that will apply optical light sensitive adhesive carries out drying, makes in the optical light sensitive adhesive that most solvent is volatilized to be fallen;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, the opposite side surface of resin film is attached the last layer backing film, backing film adopts polyamide material; The resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 180 ℃, solvent evaporates residual in the optical light sensitive adhesive can be fallen, optical light sensitive adhesive is and has plastic pasty state, fill up the microprism array structure gap of projection, the surface forms accurate microprism array structure thereon;
(4) under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould through what step (3) was handled, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 40 ℃, this laminated film is the reflective membrane with microprism array structure;
Reflective membrane strips down from endless belt-shaped mould.
The prepared reflective membrane of the inventive method, through the coat of metal, perhaps pass through supersonic welding connection technology or sweat soldering technology behind its microprism one side surface involution one hypoglyph, pressure sensitive adhesive on the coat of metal or counterdie one side are compound promptly can be made into the micro-prism type reflective membrane that is used for the traffic safety sign again.
Claims (8)
1. the production method that has the reflective membrane of microprism array structure, adopt endless belt-shaped continuous mould pressing mould in the described method, this mould has an inside surface and an outside surface, its outside surface has the continuous precision microprism array structure that is convex shape, endless belt-shaped mould said method comprising the steps of along the loop to-and-fro movement:
(1) applies one deck optical light sensitive adhesive at resin film one side surface;
(2) the resin film that will apply optical light sensitive adhesive carries out drying;
(3) side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, heat mould then, the temperature that endless belt-shaped mould is heated part is controlled at 60～180 ℃, described optical light sensitive adhesive fills up the gap of the microprism array structure of projection, thereby forms accurate microprism array structure;
(4) under engagement, the coating that to handle through step (3) irradiation by the UV light source synchronously of the resin film of optical light sensitive adhesive and endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive has applied the resin film of optical light sensitive adhesive and the microprism array structure mutual group on the optical light sensitive adhesive layer and has become laminated film;
(5) laminated film of curing molding and with the endless belt-shaped mould of its engagement synchronously through supercooling, temperature is lowered to 40～-10 ℃, this laminated film is the reflective membrane with microprism array structure.
2. the production method with reflective membrane of microprism array structure according to claim 1, it is characterized in that: in the described step (3), except a side surface that is coated with optical light sensitive adhesive on the resin film is close to the outside surface of endless belt-shaped mould, also attach the last layer backing film on the opposite side surface of resin film, the resin film that will be pasted with backing film then and apply the optical light sensitive adhesive of drying heats mould, the temperature that endless belt-shaped mould is heated part is controlled at 60～180 ℃, described optical light sensitive adhesive fills up the gap of the microprism array structure of projection, thereby forms accurate microprism array structure; In the described step (4), under engagement, to be pasted with backing film and apply the resin film of optical light sensitive adhesive of drying and the irradiation by the UV light source synchronously of endless belt-shaped mould, the rapid curing molding of optical light sensitive adhesive is pasted with backing film and has applied the resin film of optical light sensitive adhesive of drying and the microprism array structure mutual group on the optical light sensitive adhesive layer becomes laminated film.
3. the production method with reflective membrane of microprism array structure according to claim 1 and 2 is characterized in that: described endless belt-shaped mould is the flexible metal band.
4. the production method with reflective membrane of microprism array structure according to claim 1 and 2 is characterized in that: described endless belt-shaped mould adopts the nickel metal material to make.
5. the production method with reflective membrane of microprism array structure according to claim 1 and 2 is characterized in that: described resin film can adopt acrylate material, makrolon material or both compound substances.
6. the production method with reflective membrane of microprism array structure according to claim 1 and 2 is characterized in that: in heating mould process, the temperature that endless belt-shaped mould is heated part is controlled at 70～100 ℃.
7. the production method with reflective membrane of microprism array structure according to claim 1 and 2 is characterized in that: in cooling procedure, the laminated film of described curing molding reaches and the endless belt-shaped mold temperature of its engagement is lowered to 30～10 ℃.
8. the production method with reflective membrane of microprism array structure according to claim 2 is characterized in that: described backing film adopts polyester material, polypropylene material or polyamide material.
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| CN102176082B (en) * | 2010-12-27 | 2012-11-14 | 浙江道明光学股份有限公司 | Method for manufacturing reflecting film with micro-prism array structure |
| CN103009016A (en) * | 2013-01-14 | 2013-04-03 | 常州华日升反光材料股份有限公司 | Production method for seamless nickel sheet with microprism array |
| CN103513310A (en) * | 2013-10-28 | 2014-01-15 | 福建省晋江市夜光达反光材料有限公司 | Process for producing microprism reflective crystal lattice strip and microprism reflective crystal lattice strip |
| CN103935056B (en) * | 2014-04-28 | 2016-08-24 | 田武学 | A kind of extrusion molding produces equipment and the method for micro-prism light reflecting film |
| CN107026210B (en) * | 2017-05-04 | 2019-08-06 | 苏州高德辰光电科技有限公司 | A kind of reflectance coating, its manufacturing method and its application |
| US11001979B2 (en) | 2018-08-13 | 2021-05-11 | Vergence Automation, Inc. | Methods and apparatus for ultrawide entrance angle reflective articles for use with autonomous vehicle machine vision systems |
| US11762133B1 (en) | 2018-09-13 | 2023-09-19 | Vergence Automation, Inc. | Retroreflective materials and articles incorporating near-ideal total internal retroreflective elements |
| CN109760343A (en) * | 2019-01-18 | 2019-05-17 | 上海浩驰科技股份有限公司 | A kind of Microprism reflective membrane and preparation method thereof |
| CN112248359A (en) * | 2020-09-28 | 2021-01-22 | 徐君东 | Manufacturing process of directional reflective film |
| CN112946797B (en) * | 2021-02-19 | 2023-10-31 | 晋江联兴反光材料有限公司 | Reflective film with composite metal layer and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5805343A (en) * | 1995-12-01 | 1998-09-08 | Pioneer Electronic Corporation | Optical element and a method for forming the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5805343A (en) * | 1995-12-01 | 1998-09-08 | Pioneer Electronic Corporation | Optical element and a method for forming the same |
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