WO2007088721A1 - Film d'adhesion facile pour feuille optique et son procede de fabrication - Google Patents

Film d'adhesion facile pour feuille optique et son procede de fabrication Download PDF

Info

Publication number
WO2007088721A1
WO2007088721A1 PCT/JP2007/050475 JP2007050475W WO2007088721A1 WO 2007088721 A1 WO2007088721 A1 WO 2007088721A1 JP 2007050475 W JP2007050475 W JP 2007050475W WO 2007088721 A1 WO2007088721 A1 WO 2007088721A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
support
film
easily adhesive
adhesion
Prior art date
Application number
PCT/JP2007/050475
Other languages
English (en)
Japanese (ja)
Inventor
Sumio Nishikawa
Aya Kuwata
Original Assignee
Fujifilm Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Corporation filed Critical Fujifilm Corporation
Publication of WO2007088721A1 publication Critical patent/WO2007088721A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/26—Layered products comprising a layer of synthetic resin characterised by the use of special additives using curing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2551/00—Optical elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers

Definitions

  • Adhesive film for optical sheet and method for producing the same are Adhesive film for optical sheet and method for producing the same
  • the present invention relates to an easily adhesive film for an optical sheet, and a method for producing the same, and more particularly to an easily adhesive film for an optical sheet which can prevent blocking after application of an easily adhesive layer, and a method for producing the same.
  • Polyester resin films in particular, biaxially stretched films of polyethylene terephthalate (PET) have excellent mechanical properties, flame resistance, chemical resistance, etc., so magnetic tapes, photographic films, packaging films, Demand for the use of OHP films and antireflective films for OCR devices widely used in recent years has grown significantly in recent years.
  • PET polyethylene terephthalate
  • the polyester resin-based film is required to have adhesiveness.
  • the adhesion to a printing ink or a laminate material in the case of a photographic film, the adhesion to a photosensitive layer formed on a substrate film, as in the case of a magnetic tape
  • polyester films have a problem in that they have poor adhesion to various materials having high surface cohesion because of crystal orientation.
  • corona treatment, plasma treatment, flame treatment and the like are known as means for improving the surface properties of polyester films, and some of them are used.
  • these means are intended to improve the adhesion by physically changing the shape of the film surface, and the performance thereof decreases with time, and the transparency is also reduced.
  • Another method for overcoming the above-mentioned drawbacks is a method of applying a coating on a film and providing an easy adhesion layer.
  • the easy-adhesion layer organic solvent-based ones and water-based ones are used.
  • water-based ones are preferable from the viewpoint of safety problems such as environmental damage caused by volatilization, and problems of hygiene and resource saving.
  • this easy-to-adhere layer For example, it has been proposed to form using a water-soluble or water-dispersible polyester resin.
  • the above-mentioned easy-adhesion layer has good adhesion to the polyester film, but it has low affinity with the coating agent, adhesive, ink, etc. to be laminated, and vice versa.
  • the adhesion to these layers is improved, the adhesion to polyester films is lowered, and it is difficult to select one having sufficient adhesion as an intermediate layer.
  • the films are blocked due to changes in temperature and humidity during storage, and uniform application of surface agents such as diazo paint and UV ink is difficult, which causes various problems.
  • Patent Document 1 discloses a polyester film having an easy-adhesion layer formed by crosslinking an acrylic resin and an allally modified polyester resin.
  • Patent Document 2 discloses a polyester film having a layer containing styrene-butadiene butadiene resin or attril-o-tri-butadiene butadiene resin and a specific polyester resin.
  • Patent Document 3 and Patent Document 4 propose that the adhesiveness and releasability of the acrylic resin be improved.
  • Patent Document 3 forms a transparent primer having a functional group having a photopolymerizable unsaturated group in an acrylic polymer in the range of 0.1 to 40% by weight on both sides of a substrate. To be disclosed.
  • Patent Document 4 relates to the 2P method in which the resin layer has a two-layer structure, and the reaction of the first resin layer on the mold side is the releasability of the cured product; An arrangement is disclosed that is taller than the object.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 1-108037
  • Patent Document 2 Japanese Patent Publication No. 3-22899
  • Patent Document 3 Japanese Patent Application Laid-Open No. 2002-365405
  • Patent Document 4 Japanese Patent Application Laid-Open No. 2004-249655
  • the easily adhesive film produced by the above-mentioned conventional method is used as a support while And adhesion to the optical functional layer is insufficient.
  • the optical functional layer is a prism layer made of a UV curing resin, there is a problem that the adhesion between the prism layer and the support tends to be insufficient.
  • the adhesive force between the support and the prism layer referred to herein means that when peeling off the mold force prism layer at the time of production, the support peels off the prism layer force and the UV curable resin is not left on the mold side. Or adhesion to prevent the UV-curable resin from falling off from the support when the prism sheet is cut out, and adhesion to last under the conditions of use of the liquid crystal panel material, etc. .
  • a butadiene-styrene copolymer latex layer or an aqueous system containing a crosslinking agent on at least one side as an easy-adhesion layer on the surface of the film made of polyester resin as a support is used. It has been found that forming a urethane resin layer is effective.
  • the present invention has been made in view of these circumstances, and it is a production process (coating, transfer, transport) and handling (transport, cutting, and the like) for forming an optical functional layer in the production of an optical functional film.
  • a production process coating, transfer, transport
  • handling transport, cutting, and the like
  • an easy adhesion layer coated on the surface of a support contains a water-based urethane resin and a carbodiimide-based crosslinking agent, and the back surface of the support
  • an easily adhesive film for an optical sheet wherein the uppermost layer of the formed back layer is a polyolefin layer.
  • the easy adhesion layer coated on the surface of the support is a water-based urethane resin and an epoxy resin.
  • the present invention provides an easily adhesive film for an optical sheet, comprising a crosslinker, wherein the uppermost layer of the back layer formed on the back surface of the support is a polyurethane layer.
  • the easy adhesion layer coated on the surface of the support contains a styrene butadiene copolymer, and a dichloro-s trialine derivative or a carbodiimide-based crosslinking agent, and the back surface of the support is obtained.
  • an easily adhesive film for an optical sheet wherein the uppermost layer of the formed back layer is a polyolefin layer.
  • a styrene-butadiene copolymer latex layer containing a crosslinking agent or a water-based urethane resin layer is coated as an easy-adhesion layer on the surface (surface) of the support on which the optical function layer is formed,
  • a polyolefin layer is formed on the top of the back of the body (opposite to the side on which the easy-adhesion layer is applied).
  • the easily adhesive film is delivered as an optical functional layer on the surface of the easily adhesive layer of the easily adhesive film obtained, for example, in a manufacturing process for forming an acrylic ultraviolet curable resin layer.
  • blocking can be carried out well.
  • the prism sheet obtained in the present invention has excellent adhesion and is free from blocking, so it is also excellent in transparency and can be stably manufactured.
  • Patent Document 3 is different from the present invention in the formulation of the primer layer (photo-curing type), and the symmetry is also a lenticular lens, and further, the knock layer is not mentioned, and the difference from the present invention Do.
  • Patent Document 4 is similar to the present invention in that an adhesive layer is provided between the transfer layer and the support, but in Patent Document 4, an adhesive layer is provided during the transfer step. This is different from the present invention in which the adhesive layer is applied before the transfer process. Furthermore, Patent Document 4 mentions a back layer which is a feature of the present invention.
  • the support is a polyester film
  • the back layer is a first layer containing an allyl latex and tin oxide, and a polyolefin layer formed on the first layer. It is preferable to have a certain second layer.
  • the support is a polyester film, and the back layer contains a first layer containing a conductive polymer; It is preferable to have a second layer which is a polyolefin layer formed on the first layer. With such a back layer, the effects of the present invention can be further obtained.
  • the support is preferably polyethylene terephthalate.
  • polyester films other than polyethylene terephthalate can also be used as the support, the effects of the present invention can be suitably obtained with polyethylene terephthalate.
  • an optical functional layer is formed on the easily adhesive layer, and the optical functional layer is a prism layer made of an ultraviolet curing resin.
  • the step of applying an easily bonding layer on the surface of a support the step of applying a back layer whose top layer is a polyolefin layer on the back side of the support, and the easily bonding layer And drying the backing on which the backing layer is applied, winding the backing after drying, and forming an optically functional layer on the easily adhesive layer of the wound backing.
  • FIG. 1 is a table showing the weight ratio of compounds constituting the resin solution used in the examples.
  • FIG. 2 A conceptual diagram showing the configuration of a device for manufacturing an embossed sheet
  • FIG. 3 A diagram showing an outline of a cross section along the axial direction of the rotation axis of the embossing roller
  • FIG. 4 A table showing the results of the haze, the tape peeling test, and the blocking test of embossed sheets prepared based on Examples 1 to 5 and Comparative Examples 1 to 6.
  • polyester-based resin examples include linear saturated polyesters synthesized from an aromatic dibasic acid or an ester-forming derivative thereof and a diol or an ester-forming derivative thereof.
  • polyethylene terephthalate, polyethylene naphthalate and the like are preferable from the viewpoint of easy availability, economy and effect.
  • these copolymers or a blend of these with a small amount of other fats may be used as long as the effects of the present invention are not impaired.
  • inorganic or organic fine particles for example, titanium oxide, calcium carbonate, silica, barium sulfate, inorganic fillers such as silicone, acrylic, etc.
  • inorganic fillers such as silicone, acrylic, etc.
  • An organic filler such as benzoguanamine, Teflon (registered trademark) or epoxy, an adhesion improver such as polyethylene glycol (PEG) or sodium dodecylbenzene sulfonate, or an antistatic agent can be contained.
  • the polyester film of the present invention can be formed by melt extrusion of a polyester resin as described above to form a film, orientation crystallization by longitudinal and transverse biaxial stretching, and crystallization by heat treatment.
  • known methods and conditions can be appropriately selected and used.
  • the thickness of the polyester film used herein is not particularly limited, and can be appropriately selected according to the purpose of use of the film. Generally, it is preferable to use as 5-500 / ⁇
  • the easily bonding layer used in the present invention is characterized by containing a styrene-butadiene copolymer (hereinafter, appropriately abbreviated as “SBR”) or a water-based urethane resin and a crosslinking agent.
  • SBR is a copolymer based on styrene and butadiene, and further means one obtained by copolymerizing other components as necessary. It is known that this copolymer can be obtained with various physical properties by adjusting the content ratio of styrene and butadiene.
  • the styrene-butadiene copolymer is a latex. It is preferable that Specifically, from Nippon Zeon Co., Ltd.-as Paul (trade name), from Sumitoga Inc. as Nogatex (trade name), from Takeda Pharmaceutical Co., Ltd. as Cross Ren (trade name), Asahi Dow Latex (from Asahi Dow Co., Ltd.) Alternatively, commercial products sold by Dainippon Ink Chemical Co., Ltd. or overseas manufacturers may be used as trade names).
  • the particle size of the dispersion particles is preferably not more than 5 ⁇ m, more preferably not more than 1 ⁇ m, and still more preferably not more than 0.2 m.
  • the particle diameter is large, there is a problem that aggregation of particles tends to occur in the coating step, or the transparency, gloss and the like of the film become poor.
  • it is necessary to reduce the thickness of the coating layer it is necessary to reduce the particle size accordingly.
  • the content ratio of styrene Z butadiene in the styrene butadiene copolymer of the easy adhesion layer is preferably about 50/50 to 80/20.
  • the proportion of SBR contained in the latex is preferably 30 to 50% by weight as solid weight.
  • crosslinking agent is added to the easily bonding layer in order to improve the physical properties of SBR
  • a triazine-based crosslinking agent is preferable as the crosslinking agent used here.
  • a coating solution containing a styrene-butadiene copolymer and a crosslinking agent is coated on a polyester-based resin film substrate and then dried at high temperature to form an easily adhesive layer. It is preferable to form.
  • a self-water-soluble or self-dispersed one having a hydrophilic group or a hydrophilic segment added to the urethane resin and having a water-soluble or self-dispersible type preferably contains a silanol group in the side chain.
  • An emulsion type is also used. Specifically, Superflex (trade name) manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd. or Takelac (trade name) manufactured by Mitsui Takeda Chemical Co., Ltd. can be used.
  • the force to which a crosslinking agent is added to improve the physical properties of the urethane resin is an epoxy having an average number of epoxy functional groups of preferably 3.5 or more.
  • Crosslinkers or carpodiimide crosslinkers are preferred.
  • a polyolefin layer is excellent as a back layer coated on the back side. If it is a polyolefin, appropriate adhesion with a support such as a polyester film can be obtained, and blocking with the easily adhesive layer which is coated on the opposite surface (surface) can be prevented. In addition, it is preferable to apply a conductive layer or a conductive polymer layer composed of an acrylic latex and tin oxide to the knock layer. This makes it possible to prevent dust from being attached due to charging.
  • a polyolefin layer is coated on the back surface of a polyolefin single layer or a conductive layer consisting of an acrylic latex and an acrylic latex, or a conductive polymer layer, dried and wound up.
  • polyolefin a polyolefin aqueous dispersion manufactured by Mitsui Chemicals, or an ethylene-based copolymer emulsion manufactured by Toho Chemical Co., Ltd. can be used.
  • the time of applying the coating solution for easy adhesion layer and the polyolefin coating solution to the polyester film is before biaxial stretching, after biaxial stretching, or immediately before applying a surface layer material.
  • a coating agent is applied to a uniaxially stretched polyester film by a roll stretching method as exemplified in Japanese Patent Publication No. 41-8470 and the like, and the film is appropriately dried or not dried immediately or at right angles to the previous stretching direction. It is also possible to apply a method of stretching in the direction and heat treatment (hereinafter referred to as coating and stretching method)
  • the coating layer can be dried simultaneously with the drawing, and the coating layer can be drawn to thin the coating thickness, and it is difficult by methods other than the coating and drawing method.
  • a wide laminated film which was
  • the thickness of the easily adhesive layer on the polyester film and the thickness of the polyolefin layer formed on the back surface of the easily adhesive layer is preferably in the range of 0.50 to 0.5 / z m. If the thickness of the coated layer is less than 005 m, it is difficult to apply uniformly, so that the product tends to have uneven coating, or the adhesion to the laminated prism layer is insufficient. On the other hand, when the thickness of the coating layer is more than 0, the films may be easily fixed to each other or the light transmittance of the entire film may be reduced.
  • a sticking improver if necessary, a coatability improver, an antifoamer, an ultraviolet ray absorber, an antioxidant, an antistatic agent, a lubricant, inorganic fine particles, a dye , And pigments May be contained.
  • a conductive layer comprising an acrylic latex and tin oxide or a conductive polymer layer such as polythiophen or polyarrine as an antistatic layer in the lower layer.
  • the easily adhesive film of the present invention is configured by forming a polyolefin layer on the above-mentioned easily adhesive layer on the one surface of the polyester film substrate and the uppermost layer on the back surface thereof.
  • PET film After stretching the polyethylene terephthalate (PET) film 3. 3 times in each of the longitudinal direction and the transverse direction after biaxial stretching, the PET film is heat-set at 240 ° C. for 20 seconds, and then transverse direction at the same temperature. Relaxed about 4%. After that, the chuck portion of the tenter was slitted, knurled at both ends, and wound up. In this way, a roll-like support of substrate 36 having a thickness of 180 m was obtained.
  • PET polyethylene terephthalate
  • the processing frequency at this time was 9.6 kHz, and the gap alignment between the electrode and the dielectric roller was 1.6 mm.
  • a coating solution of the following composition was applied onto one side of the film substrate by 6 ml Zm2 and dried at 185 ° C. for 5 minutes to form an easily adhering layer having a thickness of 0.15 m.
  • a coating solution for an antistatic layer having the following composition is coated on the back surface of the support (the surface on which the easy adhesion layer is not provided) with a bar coater and dried at 185 ° C. for 5 minutes. A 15 ⁇ m antistatic layer was formed.
  • Tin dioxide-antimony composite metal acid aqueous dispersion 9. 1 part by weight
  • an aqueous dispersion of polyolefin latex having the following composition was applied so as to have a dry film thickness of 0.88 / z m. It was dried at 140 ° C. for 3 minutes.
  • Distilled water was added to the above mixture to prepare a total of 100 parts by weight.
  • ⁇ ] 3700 Ebecryl 3700, manufactured by Daicel UC Co., Ltd.,
  • BPE200 NK Ester BPE—200, Shin-Nakamura Chemical Co., Ltd.,
  • LR8893X Lucirin LR8893X, a photoradical generator manufactured by BASF Co., Ltd.
  • a prism layer was formed on a support using the embossed sheet manufacturing apparatus 10 configured as shown in FIG.
  • the support (sheet) W a support having a width of 500 mm was used.
  • a groove with a pitch of 50 m in the axial direction of the roller was formed on the entire surface of the roller approximately 500 mm wide by cutting using a diamond bit (single point).
  • the cross-sectional shape of the groove is a triangular shape with an apex angle of 90 degrees, and the bottom of the groove is also a triangular shape of 90 degrees without a flat portion. That is, the groove width is 50 m and the groove depth is about 25 m. Since this groove is endless without seams in the circumferential direction of the roller, a prism lens can be formed on the sheet W by the emboss roller 13. The surface of the roller was plated with nickel after grooved. A schematic cross-sectional view of the embossing roller 13 is shown in FIG.
  • a die coater using an ejection type coating head 12C was used.
  • a coating solution F resin solution
  • the solution described in the above-mentioned table was used.
  • the thickness of the coating liquid F (resin) in the wet state is controlled by the supply device 12 B to supply the amount of each coating liquid F to the coating head 12 C so that the film thickness after drying of the organic solvent is obtained. did.
  • a hot air circulating drier was used as the drying means 19.
  • the temperature of the hot air was 100 ° C.
  • the prism sheet W was pressed by the emboss roller 13 and the roller roller 14.
  • the pressure (effective pressure) of the prism sheet W was set to 0.5 Pa.
  • a metal halide lamp was used as the resin curing means 15, and irradiation was performed at an energy of 1000 mj Z cm 2.
  • optical film (prism sheet) was obtained in the same manner as in Example 1 except that the coating solution for the easy adhesion layer had the following composition.
  • Emarex 710 (Nippon Emulsion Co., Ltd. polyoxyethylene alkyl ether) 1%: 0.7 ml
  • a coating solution of the following composition was coated on one side of a support by 6 ml Zm 2 and dried at 100 ° C. for 5 minutes to form an easy-adhesion layer having a thickness of 0.15 m in the same manner as in Example 1.
  • a film (prism sheet) was obtained.
  • a coating solution of the following composition was coated on one side of a support by 6 ml Zm 2 and dried at 130 ° C. for 5 minutes to form a 0.15 m thick easy-adhesion layer in the same manner as in Example 1.
  • An optical film (prism sheet) was obtained.
  • An optical film (prism sheet) was obtained in the same manner as in Example 1 except that the coating liquid for the first conductive layer of the knock layer had the following composition.
  • Acrylic resin water dispersion 1. 9 parts by weight (Dilyulmer ET410, solid content 30% by weight, manufactured by Nippon Junyaku Co., Ltd.)
  • An easy-adhesion film before application of the optical functional layer was obtained in the same manner as in Example 1 except that only one layer of the back layer on the back surface was coated and no layer of the back 2 layer was coated in Example 1.
  • An easy-adhesion film before application of the optical functional layer was obtained in the same manner as in Example 2 except that the back layer on the back surface was coated with only one knock layer and the back two layers were not coated in Example 2.
  • An easy-adhesion film before application of the optical functional layer was obtained in the same manner as in Example 4 except that the back layer on the back surface was coated with only one knock layer and the back two layers were not coated in Example 4.
  • An easily adhesive film before application of the optical functional layer was obtained in the same manner as in Example 5 except that only one layer of the back layer on the back surface was coated and no layer of the back 2 layer was coated in Example 5.
  • cellophane tape (Cellotape (registered trademark): manufactured by Nichiban Co., Ltd.) was attached to the entire surface of the subject, and a peeling test was performed to peel off the cellophane tape. This peeling test was repeated three times in each of the prism ridge direction and the prism parallel direction. Then, the number of cut pieces of the prism layer attached to cellophane tape and peeled off was measured.
  • the easy-adhesion film before being coated with the optically functional layer is left in an atmosphere of 23 ⁇ 3 ° C, 50 ⁇ 5% RH for 3 hours, and then the easy-adhesion film is cut into a size of 35 mm x 35 mm. Then, 5 pairs of 2 sheets were piled up, and under the same atmosphere, the time under a load of 84 kg was tested at the level of both 24 hours and 72 hours.
  • a to D were set according to the blocking force of several frames in a total of 100 frames, taking 3.5 mm x 3.5 mm as one frame. If the blocking is less than 0.5, rank A, rank B less than 0.5 to 10, rank C less than 10 to 50%, and rank D less than 50%.
  • Rank A can be used, but Rank B suffers from the restriction of winding conditions and storage conditions. And rank C and rank D are difficult to use. From the table of FIG. 4, the evaluation results of the evaluation (the haze) of the easily adhesive film, the evaluation of the adhesiveness of the product (tape peeling test) and the blocking test of the easily adhesive film are compared.
  • Comparative Example 6 was as low as 1.5%, the corresponding Examples and Comparative Examples had no significant difference.
  • the comparative example is B, C or D under any conditions and is clearly inferior.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un film d'adhésion facile pour une feuille optique, permettant d'empêcher le blocage après l'enduction d'une couche d'enduction facile lors d'un procédé (enduction, transfert et support) de formation d'une couche optique fonctionnelle lors de la fabrication d'un film optique fonctionnel, ou d'un procédé de fabrication d'un support d'adhésion facile, qui ne provoque pas de séparation de couche lors de sa manipulation (par exemple, transport, coupe ou laminage) et qui présente une excellente adhésion même en une atmosphère présentant une humidité et une température élevées, ainsi qu'un procédé de fabrication du film d'adhésion facile. Selon ce procédé, une couche d'adhésion facile enduite sur la surface d'une bande (W) servant de support contient une résine aqueuse d'uréthanne et un agent de réticulation ou contient un copolymère styrène-butadiène et un agent de réticulation, et la couche supérieure d'une couche de fond formée à l'arrière de la bande (W) est une couche de polyoléfine.
PCT/JP2007/050475 2006-02-01 2007-01-16 Film d'adhesion facile pour feuille optique et son procede de fabrication WO2007088721A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-024850 2006-02-01
JP2006024850A JP2007203593A (ja) 2006-02-01 2006-02-01 光学シート用易接着性フィルム、及びその製造方法

Publications (1)

Publication Number Publication Date
WO2007088721A1 true WO2007088721A1 (fr) 2007-08-09

Family

ID=38327301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/050475 WO2007088721A1 (fr) 2006-02-01 2007-01-16 Film d'adhesion facile pour feuille optique et son procede de fabrication

Country Status (4)

Country Link
JP (1) JP2007203593A (fr)
KR (1) KR20080090437A (fr)
CN (1) CN101374654A (fr)
WO (1) WO2007088721A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013146801A1 (fr) * 2012-03-27 2013-10-03 日本ペイント株式会社 Composition de résine durcissable pour la formation d'une couche adhésive et procédé d'intégration d'une base et base devant être liée

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101516030B1 (ko) * 2007-08-09 2015-05-04 데이진 듀폰 필름 가부시키가이샤 휘도 향상 시트용 폴리에스테르 필름
JP5063421B2 (ja) * 2008-03-13 2012-10-31 ユニチカ株式会社 半導体製造工程用フィルム
KR101124581B1 (ko) * 2009-01-19 2012-03-15 에스케이씨 주식회사 광학용 이접착 폴리에스테르 필름
JP5585359B2 (ja) * 2010-09-30 2014-09-10 日本ゼオン株式会社 光学積層体及び面光源装置
JP5832128B2 (ja) * 2011-04-18 2015-12-16 株式会社トクヤマ フォトクロミックレンズ
JP5783657B2 (ja) * 2012-12-22 2015-09-24 三菱樹脂株式会社 積層ポリエステルフィルム

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858661B2 (ja) * 1975-11-27 1983-12-26 富士写真フイルム株式会社 シヤシンザイリヨウ
JPH11123869A (ja) * 1997-10-23 1999-05-11 Gunze Ltd 水性インク印刷用シート
JPH11221892A (ja) * 1998-02-06 1999-08-17 Fuji Photo Film Co Ltd 低熱収縮ポリエステルフィルムおよび低熱収縮熱現像写真感光材料
JPH11286092A (ja) * 1998-04-02 1999-10-19 Toray Ind Inc 積層ポリエステルフィルムおよびその製造方法
JP2000029165A (ja) * 1998-07-10 2000-01-28 Fuji Photo Film Co Ltd 低熱収縮フイルムおよびそれを支持体とする熱現像写真感光材料
JP2001341241A (ja) * 2000-06-06 2001-12-11 Toray Ind Inc 積層フィルムおよびその製造方法
JP2002079635A (ja) * 2000-09-05 2002-03-19 Toray Ind Inc 積層ポリエステルフィルムおよびその製造方法
JP2002316387A (ja) * 2001-04-19 2002-10-29 Fuji Photo Film Co Ltd セルロースアシレートフイルムおよびその製造方法
JP2003131344A (ja) * 2002-07-15 2003-05-09 Fuji Photo Film Co Ltd 低熱収縮フィルムからなる感光材料支持体の製造方法および熱現像写真感光材料の製造方法
JP2004195775A (ja) * 2002-12-18 2004-07-15 Toray Ind Inc ポリエステルフィルム
JP2004315563A (ja) * 2003-04-11 2004-11-11 Mitsubishi Polyester Film Copp 二軸配向ポリエステルフィルム

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858661B2 (ja) * 1975-11-27 1983-12-26 富士写真フイルム株式会社 シヤシンザイリヨウ
JPH11123869A (ja) * 1997-10-23 1999-05-11 Gunze Ltd 水性インク印刷用シート
JPH11221892A (ja) * 1998-02-06 1999-08-17 Fuji Photo Film Co Ltd 低熱収縮ポリエステルフィルムおよび低熱収縮熱現像写真感光材料
JPH11286092A (ja) * 1998-04-02 1999-10-19 Toray Ind Inc 積層ポリエステルフィルムおよびその製造方法
JP2000029165A (ja) * 1998-07-10 2000-01-28 Fuji Photo Film Co Ltd 低熱収縮フイルムおよびそれを支持体とする熱現像写真感光材料
JP2001341241A (ja) * 2000-06-06 2001-12-11 Toray Ind Inc 積層フィルムおよびその製造方法
JP2002079635A (ja) * 2000-09-05 2002-03-19 Toray Ind Inc 積層ポリエステルフィルムおよびその製造方法
JP2002316387A (ja) * 2001-04-19 2002-10-29 Fuji Photo Film Co Ltd セルロースアシレートフイルムおよびその製造方法
JP2003131344A (ja) * 2002-07-15 2003-05-09 Fuji Photo Film Co Ltd 低熱収縮フィルムからなる感光材料支持体の製造方法および熱現像写真感光材料の製造方法
JP2004195775A (ja) * 2002-12-18 2004-07-15 Toray Ind Inc ポリエステルフィルム
JP2004315563A (ja) * 2003-04-11 2004-11-11 Mitsubishi Polyester Film Copp 二軸配向ポリエステルフィルム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013146801A1 (fr) * 2012-03-27 2013-10-03 日本ペイント株式会社 Composition de résine durcissable pour la formation d'une couche adhésive et procédé d'intégration d'une base et base devant être liée

Also Published As

Publication number Publication date
JP2007203593A (ja) 2007-08-16
KR20080090437A (ko) 2008-10-08
CN101374654A (zh) 2009-02-25

Similar Documents

Publication Publication Date Title
JP5223196B2 (ja) ポリエステル積層フィルムおよび転写箔
WO2007088721A1 (fr) Film d'adhesion facile pour feuille optique et son procede de fabrication
WO2010143551A1 (fr) Film polyester stratifié
WO2011135994A1 (fr) Film polyester stratifié
JP5520138B2 (ja) 積層ポリエステルフィルム
JP5424987B2 (ja) 積層ポリエステルフィルム
WO2011001971A1 (fr) Film polyester stratifié
JP2006007550A (ja) 両面離型フィルム
JP5536379B2 (ja) 積層ポリエステルフィルム
WO2022059580A1 (fr) Film de polyester contenant une cavité
JP5700439B2 (ja) 基材レス両面粘着シート
JP2007260983A (ja) 光学シートおよび接着層の製造方法
JP5937358B2 (ja) 離型フィルム
JP2005343055A (ja) ガラス用装飾フィルム
JP2014223736A (ja) 活性エネルギー線硬化型接着剤用易接着性積層フィルム
JP2013136208A (ja) 離型フィルム
JP2012161966A (ja) 樹脂フィルム、及び照明用カバー
JP2013022831A (ja) 易接着フィルムおよびその製造方法
JP5489971B2 (ja) 積層ポリエステルフィルム
JP3936260B2 (ja) 多層樹脂シート
JP5489972B2 (ja) 積層ポリエステルフィルム
JP2012162075A (ja) 積層ポリエステルフィルム
JP2013022887A (ja) インサート成形用ポリエステルフィルム
JPH10100354A (ja) 表面処理プラスチックフィルム
JP4186570B2 (ja) 積層ポリエステルフィルム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1020087017815

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 200780003802.6

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07706802

Country of ref document: EP

Kind code of ref document: A1