WO2005021248A1 - 三次元造形物の製造方法 - Google Patents
三次元造形物の製造方法 Download PDFInfo
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- WO2005021248A1 WO2005021248A1 PCT/JP2004/011767 JP2004011767W WO2005021248A1 WO 2005021248 A1 WO2005021248 A1 WO 2005021248A1 JP 2004011767 W JP2004011767 W JP 2004011767W WO 2005021248 A1 WO2005021248 A1 WO 2005021248A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/002—Coloured
Definitions
- the present invention relates to a method for manufacturing a three-dimensional structure, and more particularly, to manufacture a three-dimensional structure by sequentially laminating cross-sectional shapes obtained by cutting a target three-dimensional structure by a plurality of cross sections. About the method.
- the powder is spread into a thin layer having a uniform thickness on a flat surface by a blade mechanism, and an ink jet nozzle head is run on the thin layer surface of the powder to form a slice of the object to be molded.
- the binder is discharged according to the cross-sectional shape based on the obtained cross-sectional data.
- the powder material in the region where the binder has been discharged is brought into a bonded state, and is also bonded to the already formed lower layer cross-sectional shape.
- the process of discharging the binder is repeated while sequentially laminating the thin powder layers on the upper part until the entire model is completed.
- the area where the binder has not been discharged is in a state where the powder is not individually bonded to each other, so that the powder can be easily removed when removing the molded article from the apparatus,
- the target object can be separated.
- a colored three-dimensional structure is obtained by discharging a binder colored with any of yellow (Y), magenta (M), and cyan (C).
- Y yellow
- M magenta
- C cyan
- the characteristics (texture, color) of the formed object are not actually at a satisfactory level as compared with the desired object.
- the strength may be weak and may be broken depending on the handling method of the three-dimensional structure. Therefore, conventionally, the strength has been increased by impregnating a resin, a wax, and the like between the powder particles of the three-dimensional structure after manufacture. However, such a process takes time and effort.
- a binder is discharged in accordance with the cross-sectional shape of the object to be formed based on the sliced cross-sectional data of the object, but there is a problem that a volume change is caused by the bonding. Due to this volume change, dimensional accuracy has been reduced, and it has been difficult to obtain a desired three-dimensional structure. In addition, a change in volume affects its mechanical properties and bondability. Generally, when a large change in volume is involved, internal stress is generated and strength is reduced.
- the addition of a dye for coloring may reduce the curability of the molded article, and may cause stickiness or texture of the molded article.
- Patent Document 1 Japanese Patent No. 2729110
- Patent Document 2 Japanese Patent Application Laid-Open No. 2001-150556
- a step of forming a powder material into a layer having a predetermined thickness on a support (a layer forming step), and a step of forming the powder material into a cross-sectional shape based on sliced cross-sectional data of a modeling object.
- a method for producing a three-dimensional structure comprising sequentially repeating a step of forming a layer imagewise with a binder (a step of forming a cross-sectional shape), wherein the viscosity of the binder at 25 ° C is 5 to 10 OmPa. 's, a method for producing a three-dimensional structure,
- the colored binder contains a polymerizable compound and an oil-soluble dye (1) one (3) the method for producing a three-dimensional structure according to any one,
- the binder is cured by the application of energy (1) one (4) any force, the method for producing a three-dimensional structure according to one
- the binder is cured by the application of light energy; (1) one (5) force;
- binder use is made of at least one colored binder, a white colored binder, and two or more binders selected from the group consisting of colorless binders. (7) The method for producing a three-dimensional structure according to any one of the above,
- the colored binder is a yellow binder, a magenta binder, a cyan binder, and (1)
- the binder comprises a monofunctional acrylate and / or a bifunctional acrylate, (1) one (9),
- the binder comprises (a) at least one trifunctional or higher (meth) acrylate, and (b) at least one monofunctional and / or bifunctional (meth) acrylate. 10) D, shear force, the method of manufacturing a three-dimensional structure described in one,
- a three-dimensional structure can be manufactured without causing clogging of the binder at the print head nozzle. Furthermore, according to the manufacturing method of the present invention, it is possible to manufacture a three-dimensional structure having high measuring accuracy, high mechanical strength, a smooth surface, and excellent texture.
- FIG. 1 is a schematic view showing each step in an embodiment of the method for producing a three-dimensional structure according to the present invention.
- FIG. 2 is a perspective view schematically showing the cross-sectional shapes of some layers formed in the production of the three-dimensional structure shown in FIG. 1.
- a step of forming a powder material on a support into a layer having a predetermined thickness (layer forming step) and a step of forming a cross-sectional shape based on sliced cross-sectional data of a modeling object are performed.
- a method for producing a three-dimensional structure including sequentially repeating a step of forming a powder material layer imagewise with a binder (a cross-sectional shape forming step), wherein the viscosity of the binder at 25 ° C is 5 lOOmPa.
- the present invention relates to a method for producing a three-dimensional structure, wherein
- the viscosity of the binder at C is 5 100 mPa's, the force is preferably 5-80 mPa's, and more preferably 10 50 mPa's. A detailed description will be given later.
- the binder be cured by applying energy. It is preferable that the binder be cured by applying external light energy.
- volumetric shrinkage during curing is 15% or less.
- volume shrinkage ratio upon curing is a value given by the following equation, where D1 is the liquid specific gravity of the binder containing the polymerizable compound, and D2 is the solid specific gravity after curing.
- the powder material used in the present invention preferably has an average particle size of 0.11,000 zm, more preferably an average particle size of 1 to 50 zm. Is most preferred.
- the particle size distribution may be wide, but is preferably narrow.
- the particle size distribution is preferably closer to monodispersion, and the coefficient of variation of the particle size distribution is particularly preferably 20% or less, more preferably 15% or less.
- the powder material may be any of an organic material, an inorganic material, and an inorganic / organic composite material. A detailed description will be given later.
- a support having an arbitrary surface shape can be used, but a support having a flat surface, which is preferable to a support having a smooth surface, is preferably used. it can.
- a horizontal support having a frame that can extend beyond the height of the three-dimensional structure to be produced.
- the predetermined thickness of the powder material layer is more preferably a layer having a thickness of 10-500 / im per slice pitch, and more preferably a thickness of 50-150 ⁇ .
- colored cross-sectional shape refers to a shape having any cross-sectional shape obtained by cutting the object to be molded on a number of surfaces, and with coloring corresponding to the shape.
- a hollow shaped object may be used. In this case, it is sufficient to reproduce the shape near the contour of the shape. It is important to reproduce the color of the contour of the shape, which can be achieved by reproducing the color of the surface of the object.
- FIG. 1 is a schematic view showing main steps of one embodiment of the method for producing a three-dimensional structure according to the present invention.
- a thin layer 1 of a powder material is formed on a support (modeling stage) 4 provided on a three-dimensional printing unit 3.
- the support 4 is supported by a vertical moving unit 5 and is surrounded by a frame 6.
- Supply from powder supply unit onto support 4 The thin layer 1 is formed by moving the blade 7 extending long in the Y direction (direction perpendicular to the paper surface) in the X direction (from left to right on the paper surface) on the surplus powder material.
- the binder is supplied from the inkjet head 8 of the binder applying section onto the thin layer 1 of the powder material according to the cross-sectional shape data, and the binder applying area 2 is formed.
- the binder is a two-liquid reactive epoxy resin or the like
- these reactive two liquids are supplied from different ink jet nozzles to substantially the same spot to form a binder-applied region 2.
- These two reactive liquids are cured by the application of thermal energy at room temperature to bind the powder material.
- the binder-applied region 2 is used to bond the powder material by being cured by the ultraviolet light radiated from the ultraviolet irradiator 9. Is moved downward by one slice pitch to form a new powder material layer.
- a binder is supplied from the inkjet head of the binder application section according to the next adjacent cross-sectional shape data, and a new binder application area is formed.
- the powder material is bonded over the entire thickness of the thin layer in the binder application region 2 to form a cross-sectional shape, and also to the cross-sectional shape immediately before.
- FIG. 2 is a perspective view schematically showing a cross-sectional shape formed on each adjacent layer in manufacturing the three-dimensional structure as described above.
- model data representing a three-dimensional object having a colored pattern or the like on its surface.
- Model data that is the basis for modeling Can use color 3D model data created by general 3D-CAD modeling software. It is also possible to use the data and texture of the three-dimensional colored shape measured by the three-dimensional shape input device.
- the computer creates cross-sectional data for each cross-section obtained by slicing the modeling object in the horizontal direction from the model data.
- a cross section sliced at a pitch (layer thickness t) corresponding to the thickness of one layer of the powder to be laminated is cut out, and shape data and coloring data indicating an area where the cross section exists are created as cross section data.
- data created using 3D CAD eg, in STL format
- shape data and coloring data are collectively referred to as “coloring (cross-section) shape data”.
- the thickness (cross-section) of the powder layer when the object to be modeled is formed.
- Information on the slice pitch at the time of data creation and the number of layers (the number of sets of colored shape data) is input from the combi- ter to the drive control unit of the pattern creation device.
- a powder material as a material for producing a three-dimensional structure is supplied to the molding stage.
- a powder material counter-rotation mechanism hereinafter referred to as a “counter roller”
- spread the powder material in layers having a uniform thickness and after the supply of a predetermined amount of powder is completed, supply of the powder material is completed. Stop.
- “sequentially repeating the layer forming step and the cross-sectional shape forming step” means (1) a step of forming a cross-sectional shape over the entire surface of the new layer after completing the new layer forming step. And (2) forming a cross-sectional shape in a newly formed layer region before completing formation of the new layer while performing a new layer forming step.
- the latter example is illustrated in JP-A-2002-307562.
- the fourth step is a step of forming a colored cross-sectional shape based on the colored shape data of the cut surface under the control of the drive control unit.
- This step preferably employs a non-contact method. A typical example will be described below using an ink jet system as an example.
- the data is converted into bitmap information for each of the CMY colors subdivided into a grid, and the inkjet head is moved to a plane. Move. During the movement, the ultraviolet (UV) curable binder is appropriately discharged from each inkjet discharge nozzle based on the coloring data.
- the binder two or more binders selected from the group consisting of at least one colored binder, a white binder, and a colorless and transparent binder are used. In the present invention, the colored binder does not include the binder colored in white.
- the colored binder is preferably a combination of three colors of yellow (Y), magenta (M) and cyan (C), which are the three primary colors of the subtractive color method.
- a binder (black binder) colored with a black dye may be used in combination as a colored binder.
- the binder colored yellow is referred to as “yellow binder”
- the binder colored magenta is referred to as “magenta binder”
- the binder colored cyan is referred to as “cyan binder”.
- the M dye and the C dye may be used as a binder colored in two different shades.
- Colorless binders can be used to adjust the color density of CMY.
- a desired effect can be exhibited by using a binder containing a white pigment such as titanium white (white binder) in combination.
- the total discharge amount of the colored binder, the colorless binder, and the white binder is constant per unit area.
- the colorless UV-curable binder is discharged to the powder material based on the shape data and cured by ultraviolet irradiation, and then the binder is determined based on the coloring data of the layer. It can be a two-step process of discharging onto a powder material layer combined with a normal CMY inkjet, which does not include.
- the surface of the binder discharged by the UV exposure device is subjected to UV exposure, whereby a bonded body of the powder material is generated.
- the atmosphere of UV irradiation is an inert gas atmosphere such as nitrogen or argon, the delay effect of radically polymerizable polymerizable compounds due to oxygen can be reduced.
- the ink-jet method used herein mainly refers to an on-demand ink-jet method, and includes a piezo-on-demand ink-jet method, a thermal-on-demand ink-jet method, an electrostatic on-demand ink-jet method, and the like. From the stability of the binder, the piezo-on-demand inkjet method and electrostatic on-demand ink jet: System.
- the powders are kept individually and independently.
- the powder material in the region to which the binder has not been applied is separated, and a powder composite (a three-dimensional structure) imagewise bound by the binder is extracted. Unbound powder materials can be recovered and reused as materials.
- a colored composite of powdered material corresponding to the cut surface obtained by cutting the object to be formed on a plurality of surfaces is sequentially laminated to form a three-dimensional object. be able to.
- Cross-sectional shape that is colored by binders that provide a layer of powder material having a refractive index n of the refractive index n
- a transparent 3D object can be manufactured.
- the obtained three-dimensional structure may be subjected to post-processing steps such as cleaning, heat treatment, resin or wax penetration, and polishing.
- Cleaning is performed by blowing the three-dimensional object and brushing to remove any powder left in the gap, removing excess powder.
- the heat treatment increases the strength and durability of the three-dimensional structure. Wax infiltration lowers the porosity, makes the three-dimensional structure water resistant, and makes it easier to polish. Polishing finish improves surface smoothness.
- the binder used in the present invention is one that is cured by applying energy. Binders that cure by "energy application” include resins that cure by a thermally activated chemical reaction. Such a thermosetting resin also includes an epoxy resin.
- Epoxy resin is a resin having a three-membered ring called oxysilane, which has a linear or cyclic aliphatic or aromatic ring as a reactive group, and cures with a polymer when treated with a curing agent. Become.
- the epoxy resin include diglycidyl ether of bisphenol A (D GEBA).
- D GEBA diglycidyl ether of bisphenol A
- polyamide versamide type
- polyamine Acid anhydrides and polymercaptans can be exemplified.
- the epoxy resin and its curing agent are discharged from separate nozzles, mixed on a powder material, and cured.
- thermosetting resins other than epoxy resins include bururethane and cyanoacrylate.
- thermosetting binder In order to increase the curing speed of the thermosetting binder, a suitable external heating source can be used.
- the curing reaction can be accelerated by applying hot air to the binder application area or applying infrared energy or microwave energy.
- thermally curable binder that can be used in the present invention
- a liquid that does not involve a chemical reaction can be used.
- a binder mainly composed of water is supplied to a powder material mainly composed of starch, and the starch particles are mutually bound with water. oration) three-dimensional modeling printer, which is used in a system that combines powder particles consisting of starch / cellulose.
- Such a binder is also described in JP-A-6-218712 (Japanese Patent No. 2729110).
- the binder used in the present invention it is preferable to use a binder that cures by applying light energy, and it is more preferable to use a UV-curable binder.
- the UV curable binder contains a photopolymerization initiator and at least one polymerizable compound as essential components, and has a function of curing almost all constituent materials by UV light and binding a powder material.
- the photopolymerization initiator is preferably contained in an amount of 0.05 to 10% by weight, more preferably 0.1 to 5% by weight, based on the total amount of the polymerizable compound and the photopolymerization initiator.
- the content of the polymerizable reduction compound is Mel preferably 90 99.95 wt 0/0, more preferably 95- 99.9 wt%.
- the viscosity of the binder at C is 5-100 mPa's, preferably 5-80 mPa's force S, more preferably 10-50 mPa's.
- the viscosity of the binder means a value measured at 25 ° C. with an E-type viscometer (Tokyo Keiki VISCONIC ELD).
- a high-viscosity polyfunctional polymerizable compound and a low-viscosity polymerizable compound so that the viscosity of the binder at 25 ° C. falls within the above range.
- a polyfunctional polymerizable compound having a high viscosity tri- or higher-functional (meth) acrylate is preferred.
- trifunctional or higher (meth) acrylates tetrafunctional, pentafunctional or hexafunctional (meth) acrylates are preferred.
- the polymerizable compound having low viscosity is preferably a monofunctional and / or bifunctional (meth) acrylate.
- an organic solvent having a boiling point of 150 ° C. or less can be used as a viscosity modifier of the binder.
- Examples of the polymerizable compound that can be used for the UV curable binder include those which, upon irradiation with UV light, undergo addition polymerization or ring-opening polymerization by a radical species or a cationic species generated from a photopolymerization initiator to produce a polymer. It is preferably used.
- Examples of the polymerization mode of the addition polymerization include radical, cation, anion, metathesis, and coordination polymerization.
- examples of the polymerization mode of the ring-opening polymerization include cation, anion, radical, metathesis, and coordination polymerization.
- Examples of the addition-polymerizable compound include compounds having at least one ethylenically unsaturated double bond.
- the binder thread can be used without particular limitation as long as the binder thread can be stably discharged from the inkjet nozzle.
- the ethylenically unsaturated polymerizable compound is a chemical compound of a monofunctional polymerizable compound and a polyfunctional polymerizable compound (that is, a difunctional, trifunctional and 416-functional polymerizable compound) or a mixture thereof. It has a form.
- the monofunctional polymerizable compound include unsaturated carboxylic acids (for example, acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid, etc.), and esters and amides thereof.
- an ester of an unsaturated carboxylic acid and an aliphatic polyhydric alcohol compound, and an amide of an unsaturated carboxylic acid and an aliphatic polyvalent amine compound are used.
- a (meth) acrylic acid ester is a typical example, and at least a trifunctional or higher functional (meth) acrylate is used. It is preferred to use one and at least one of monofunctional and Z or bifunctional (meth) acrylates. These can be used alone or independently. Further, it can be used in combination with another polymerizable compound.
- monofunctional (meth) acrylates include triloxoshetyl (meth) atalylate, phenyloxyshethyl (meth) atalylate, cyclohexyl (meth) atalylate, and ethyl ( Examples thereof include (meth) acrylate, methyl (meth) acrylate, isobornyl (meth) acrylate, and tetrahydrofurfurinole (meth) acrylate.
- bifunctional (meth) acrylates include ethylene glycol di (meth) atalylate, triethylene glycol di (meth) atalylate, 1,3-butanediol di (meth) atalylate, and tetramethylene.
- radical polymerizable compounds which are esters of various unsaturated carboxylic acids and aliphatic dihydric alcohol compounds are commercially available, and examples thereof include PEG300 diatalylate and PEG600 diatalylate (EB11 Daicel, UCB).
- trifunctional (meth) atalylates include trimethylolpropane tri (meth) atalyle. Trimethylolpropane ethoxy tri (meth) acrylate, trimethylol ethane tri (meth) acrylate, alkylene oxide-modified tri (meth) acrylate of trimethylol propane, pentaerythritol tri (meth) acrylate, Dipentaerythritol tri (meth) atarylate, trimethylonolepropanetri ((meth) atalylonoleoxypropynole) atenole, isocyanuric acid alkylene oxide-modified tri (meth) atalylate, dipentaerythritol propionate di (meta) atalilate Rate, tri ((meth) atalyloyloxetyl) isocyanurate, hydroxypivalaldehyde-modified dimethylolpropane tri (meth) atalyle.
- tetrafunctional (meth) acrylates include pentaerythritol tetra (meth) atalylate, sorbitol tetra (meth) atalylate, ditrimethylolpropane tetra (meth) atalylate, and dipentaerythritol tetrapropionate.
- pentafunctional (meth) acrylate examples include sorbitol penta (meth) acrylate and dipentaerythritol penta (meth) acrylate.
- hexafunctional (meth) acrylates include dipentaerythritol hexa (meth) acrylate, sorbitol hexa (meth) acrylate, phosphazene-modified alkylene oxide modified hexa (meth) acrylate, Lactone-modified dipentaerythritol hexa (meta
- polyfunctional (meth) acrylate examples include polyester (meth) acrylate copolymer.
- the notation of the above (meth) acrylate is an abbreviation that indicates that both the structure of the methacrylate and the structure of the atalinoleate can be taken.
- itaconic acid esters In addition to (meth) acrylic acid esters, itaconic acid esters, crotonic acid esters, isocrotonic acid esters, maleic acid esters, and the like can also be used as the polymerizable compound.
- itaconic acid esters include ethylene glycol diitaconate, propylene glycol resinitaconate, 1,3-butanediol diitaconate, 1,4-butanediol diitaconate, tetramethylene glycol diitaconate, and pentaerythritol diitaconate. And sorbitol tetrytaconate.
- Examples of the crotonic acid ester include ethylene glycol dicrotonate, tetramethylene glycol dicrotonate, pentaerythritol dicrotonate, and sorbitol tetracrotonate.
- Examples of the isocrotonic acid ester include ethylene glycol diisocrotonate, pentaerythritol diisocrotonate, and sorbitol tetraisocrotonate.
- maleic acid ester examples include ethylene glycol dimaleate, triethylene glycol dimaleate, pentaerythritol dimaleate, and sorbitol tetramaleate.
- esters examples include, for example, aliphatic alcohol esters described in JP-B-46-27926, JP-B-51-47334, and JP-A-57-196231, and JP-A-59-5240 and JP-A-59-5240. 59-5241, those having an aromatic skeleton described in JP-A-2-226149, and those containing an amino group described in JP-A-1-165613 can also be used.
- amide monomer of an unsaturated carboxylic acid and an aliphatic polyamine compound include methylenebis-acrylamide, methylenebis-methacrylamide, 1,6-hexamethylenebis-acrylamide, hexamethylene bis one methacrylamide to 6_, diethylene thoria mint squirrel, xylylene bisacrylamide, xylylene bismethacrylamide force s.
- Examples of other preferable amide monomers include those having a cyclohexylene structure described in JP-B-54-21726.
- urethane-based addition-polymerizable compounds produced by an addition reaction between an isocyanate and a hydroxyl group are also suitable, and such specific examples are described in, for example, Japanese Patent Publication No. 48-41708.
- R 1 and R 2 represent H or CH.
- Urethane acrylates described in JP-A-7-247332 are also useful in the present invention. Can be preferably used. Specifically, urethane acrylate is a radically curable urethane monomer (oligomer), which reacts substantially completely with urethane monomers, including vinyl unsaturated compounds. Certain of these monomers are described in US-A-3,297,745, where organic diisocyanates have the formula (II)
- R 1 CH C (R 2 ) COO (R 3 ) OH
- R 1 is selected from a hydrogen atom, a methyl group and a benzyl group.
- R 2 is selected from a hydrogen atom and a methyl group.
- R 3 is selected from an alkylene group.
- urethane acrylates are soluble in butyl monomers, are cured by a free radical mechanism, and have no isocyanate residue.
- Urethane acrylates that can be used in the present invention include diatalylate, triatalylate, tetraatalylate, and hexaarylate, and are aliphatic or aromatic, polyvalent isocyanate and polyhydroxy-containing monomers, for example, It is a reaction product of diol, glycol and polyol. For example, they
- R 2 is H or CH; R 3 is an alkylene group or
- C) contains the reaction product of at least one polyhydric alcohol, for example a glycol and / or a polyhydroxy polymer.
- the organic polyisocyanate which can be used as the compound (II) may have 2, 3 and up to 6 reactive isocyanate groups. Compounds having two reactive groups are
- R1 is an inertly substituted or unsubstituted divalent aliphatic of at least 4 carbon atoms , An alicyclic or aromatic group).
- R1 is preferably one of the latter because aromatic groups absorb more UV radiation than aliphatic or alicyclic groups.
- “Inertly substituted” means that the substitution on the divalent group, if any, is not ⁇ , ⁇ -ethylenically unsaturated, but reacts with a / 3_ethylenically unsaturated alcohol or glycol or a polyhydroxy polymer. It means that the condition is essentially unreactive.
- Suitable polyisocyanate compounds are toluene-2,4-diisocyanate, 2,2,4-trimethylhexamethylene-l, 6-diisocyanate, hexamethylene-l, 6-diisocyanate, diphenylmethane-l, 4,4.
- Examples of the ⁇ , ⁇ -ethylenically unsaturated alcohol that can be used as the compound (B) include 2-hydroxyethyl acrylate and methacrylate, 3-hydroxypropyl acrylate and methacrylate, 4-hydroxybutyl acrylate and methacrylate.
- Polyhydric alcohols that can be used as compound (C) include saturated aliphatic diols and polymerized polyalcohols. Chelenoxide polyols, saturated polyhydroxy polyesters, and ⁇ , ⁇ monounsaturated polyhydroxy polyesters, such as 1,4-butanediol, ethylene glycol, propylene glycol, 1,3-butanediol, pentanediol, hexanediol, Neopentinol glycolone, including polyethylene glycol, polytetramethylene glycol, polycaprolactone diols and triols, and polyester diols and triols.
- Chelenoxide polyols, saturated polyhydroxy polyesters, and ⁇ , ⁇ monounsaturated polyhydroxy polyesters such as 1,4-butanediol, ethylene glycol, propylene glycol, 1,3-butanediol, pentanediol, hexanediol
- Representative urethane acrylates of the present invention include 4 moles of isophorone diisocyanate or disilotahexyl 4,4'-methanediisocyanate, 2 monoles of 1,4-butanediol, and 1 mole of Of diethylene glycol adipate or polytetramethylene ether glycol (having an average molecular weight of about 2000) and one mole of the reaction product of prolatatatone or 2-hydroxyethyl methacrylate.
- urethane acrylates are commercially available, and include Ebecryl 270 (manufactured by Daicel U.S.C.).
- epoxy (meth) phthalate is another preferred example of the (meth) acrylate.
- the epoxy (meth) acrylate is preferably obtained by subjecting an epoxy conjugate having a ring structure to an addition reaction of acrylic acid, methacrylic acid, acrylic acid chloride, methacrylic acid chloride and the like.
- epoxy compounds having a ring structure examples include bisphenol A-type epoxy resin, bisphenol F-type epoxy resin, halogenated bisphenol A-type epoxy resin, tetraphenyl 2-port ethanetetraglycidyl ether, phenol novolak-type epoxy resin, o-- Crezo-novolak epoxy resin, naphthalene epoxy resin, copper epoxy resin, glycidylamine epoxy resin, glycidinole ester epoxy resin, hydrogenated bisphenol A epoxy resin, hydrogenated bisphenol F epoxy resin And an isocyanurate-type epoxy resin.
- epoxy (meth) acrylates are commercially available, and include modified bisphenol A type epoxy acrylate (Ebecryl 3701; manufactured by Daicel UCB).
- the number of (meth) acryl groups in one molecule is preferably 2 or more, more preferably 3 or more.
- n is preferably 1 to 5 '
- a cationic ring-opening polymerizable compound having at least one cyclic ether group such as an epoxy group and / or an oxetane group in a molecule is used as a UV-curable binder together with a UV cationic polymerization initiator. be able to.
- Examples of the cationic polymerizable compound include a curable compound containing a ring-opening polymerizable group, and among them, a heterocyclic group-containing curable compound is preferable.
- examples of such curable compounds include epoxy derivatives, oxetane derivatives, tetrahydrofuran derivatives, cyclic ratatatone derivatives, cyclic carbonate derivatives, cyclic imino ethers such as oxazoline derivatives, and vinyl ethers, and in particular, epoxy derivatives, oxetane derivatives, and buret Monoters are preferred.
- Examples of preferred epoxy derivatives include, for example, monofunctional glycidinoleates, Functional glycidyl ethers, monofunctional alicyclic epoxies, polyfunctional alicyclic epoxies, etc.
- monofunctional and polyfunctional glycidyl ethers include diglycidyl ethers (eg, ethylene glycol diglycidyl ether, bisphenol A diglycidyl ether), and trifunctional or higher glycidyl ethers (trimethylol ether).
- diglycidyl ethers eg, ethylene glycol diglycidyl ether, bisphenol A diglycidyl ether
- trifunctional or higher glycidyl ethers trimethylol ether
- Tantri glycidinoleatenole, trimethylonolepropane triglycidinoleatene, glyceronolate Glycidyl ethers of higher capacity sorbitol tetraglycidyl ether, pentaerythritol tetraglycidyl ether, polyglycidyl ethere of novolak resin, Polyglycidyl ether of phenol novolak resin, etc., alicyclic epoxies (Celloxide 2021P, Celloxide 2081, Epolide GT-301, Epolide GT-401 (hereinafter Daicel) Chemical Industry Co., Ltd.), EHPE (Daicel Chemical Industry Co., Ltd.), polycyclohexyl epoxy methyl ether of phenol novolak resin, etc., and oxetanes (OX-SQ, PNOX-1009 (above, Toagosei Co., Ltd.
- an alicyclic epoxy derivative can be preferably used.
- the “alicyclic epoxy group” refers to a partial structure in which a double bond of a cycloalkene ring such as a cyclopentene group or a cyclohexene group is epoxidized with a suitable oxidizing agent such as hydrogen peroxide or peracid.
- polyfunctional alicyclic epoxies having two or more cyclohexenoxide groups or cyclopentene oxide groups in one molecule are preferable.
- the monofunctional or polyfunctional alicyclic epoxy compound include: 41-butylcyclohexenedioxide, (3,4-epoxycyclohexynole) methinolate 3,4-epoxycyclohexanolate ruboxylate, di (3 , 41-epoxycyclohexyl) adipate, di (3,4-epoxycyclohexylmethyl) adipate, bis (2,3_epoxycyclopentyl) ether, di (2,3_epoxycyclohexylmethyl) adipate, Examples include dicyclopentadiene oxide and 3,4-epoxycyclohexenylmethynolate 3 ', 4'epoxycyclohexene carboxylate.
- One type of alicyclic epoxyy conjugate may be used, or a mixture of two or more types may be used.
- Various alicyclic epoxy compounds are commercially available and can be obtained from Union Carbide Japan Co., Ltd., Daicel Chemical Industries, Ltd., and the like.
- a normal glycidyl compound having an epoxy group having no alicyclic structure in the molecule can be used alone or in combination with the alicyclic epoxy compound described above.
- a glycidyl ether compound / glycidyl ester compound can be used as such a normal glycidyl compound. It is preferable to use a glycidyl ether compound in combination.
- glycidyl ether compounds include 1,3_bis (2,3_epoxypropoxy) benzene, bisphenol A type epoxy resin, bisphenol F type epoxy resin, phenol novolak epoxy resin, talesol novolak Glycidinole ether compounds such as epoxy resin, trisphenol-methane epoxy resin, 1,4-butanediol dalicidyl ether, glycerol triglycidyl ether, propylene glycol diglycidyl ether, trimethylolpropane triglycidyl ether, etc. And aliphatic glycidyl ether compounds.
- the glycidyl ester include a glycidyl ester of a linolenic acid dimer.
- Glycidyl ethers are commercially available from Yuka Shell Epoxy Co., Ltd.
- a compound having an oxetanyl group which is a 4-membered cyclic ether (hereinafter, also simply referred to as "oxetane conjugate") can be used.
- the oxetanyl group-containing compound is a compound having one or more oxetanyl groups in one molecule.
- This oxetanyl group-containing compound is roughly classified into a monofunctional oxetane compound having one oxetanyl group in one molecule and a polyfunctional oxetane compound having two or more oxetanyl groups in one molecule.
- R represents a methyl group or an ethyl group.
- R is a hydrocarbon with 6 to 12 carbon atoms
- a hydrocarbon group for R a phenyl group or a benzyl group can be employed.
- a branched alkyl group such as a 2-ethylhexyl group is particularly preferred.
- Examples of oxetane compounds in which R is a phenyl group are described in JP-A-11-140279.
- a polyfunctional oxetane compound can be used, and a preferred compound group is represented by the following general formula (V).
- m represents a natural number of 2, 3, or 4
- Z represents an oxygen atom, a sulfur atom, or a selenium atom.
- R is a hydrogen atom, a fluorine atom, a straight or branched chain having from ⁇ to 6 carbon atoms
- R is an m-valent linking group, preferably a group having 1 to 20 carbon atoms.
- Sig It may contain one or more oxygen and sulfur atoms.
- Z is preferably an oxygen atom
- R is preferably an ethyl group
- m is preferably 2 As R
- a polymerization non-shrinkable monomer can be preferably used.
- the polymerizable non-shrinkable monomer is described in, for example, JP-A-2003-152248, and in the present invention. Can use S power. This will be described in detail below.
- Polymerization non-shrinkable monomer means a monomer that does not change in volume due to polymerization of the monomer or that exhibits swelling properties, and a ring-opening polymerizable cyclic monomer is preferred. Progressive cyclic monomers are more preferred. Specific examples of the cyclic monomer include BOE (bicycloorselter), S ⁇ E (orthospiroester), and S ⁇ C (orthospirocarbonate). Shows volume expansion of about 10%.
- R and R ′ each represent an alkyl group which may have a substituent
- n represents an integer of 2 to 10
- R and R each represent a divalent group which may have a substituent. Shows an alkylene group.
- n is an integer of 2 to 4.
- a cyclic functional group having a structure obtained by removing one hydrogen atom from the chemical structures of the above (a) to (c). are linked by an n-valent organic linking group.
- the above polymerizable non-shrinkable monomer is radically polymerizable, cationically polymerizable, or anionic polymerizable, and is particularly preferably cationically polymerizable.
- the polymerized non-shrinkable monomer used in the present invention preferably has a molecular weight of 200 to 1,000, more preferably 400 to 800.
- the polymerization non-shrinkable monomer and the production method thereof are particularly JP-A-61-22086, JP-A-57-42724, JP-A-59-6211, JP-A-2-32130, JP-A-6-321951, JP-A-7-64282, JP-A-7-64281, JP-A-7-33960 JP-A-8-27267, JP-A-2000-256362.
- polymerizable non-shrinkable monomer used in the present invention include an orthospiroester compound having two orthospiroester groups represented by the following general formula (VI).
- orthospiroester compound having two orthospiroester groups represented by the following general formula (VI) Specific examples of the compound represented by the following general formula (VI) are described in JP-A-8-27267 and JP-A-57-42224.
- an onoresospiroester-based compound having at least two orthospiroester residues represented by the following general formula (VII) can also be used in the present invention.
- Examples of compounds corresponding to the following general formula (VII) are described in JP-A-61-22086.
- R 1 is a hydrogen atom and R 2 is a group represented by the following (VII-a) or (Vn-b), or R 1 and R 2 are formed as one body It is a divalent group represented by the following (VII-c).
- n is an integer of 1 or more c [0084]
- a radically polymerizable ethylenically unsaturated compound and a thione polymerizable cyclic ether epoxy derivative and / or oxetane derivative
- a thione polymerizable cyclic ether epoxy derivative and / or oxetane derivative
- the UV-curable binder of the present invention Because of the structure of the interpenetrating polymer network (IPN), there is an advantage that a conjugate having balanced physical properties can be obtained.
- IPN interpenetrating polymer network
- a photo-radical polymerization initiator and a photo-induced thione polymerization initiator (such as an onium salt) in combination as the photo-polymerization initiator.
- the curable binder used in the present invention can be cured with a thermal polymerization initiator, but is also preferably cured with a photopolymerization initiator.
- the photopolymerization initiator used in the present invention refers to a compound that generates an active radical species or a cationic species by an active energy ray and starts and promotes a polymerization reaction of a binder.
- a polymerization initiator (photoradical polymerization agent) that generates an active radical species can be preferably used. Radiation, gamma rays, alpha rays, electron beams, ultraviolet rays, etc. are used as active energy rays. Among these, a method of curing with ultraviolet light is particularly preferable.
- thermal polymerization initiator that can be used in the present invention, a known compound having a bond with a small bond dissociation energy can be used.
- the thermal polymerization initiator can be used alone or in combination of two or more.
- thermal polymerization initiator examples include, for example, an organic halogenated compound, a carbonyl compound, an organic peroxide compound, an azo-based polymerization initiator, an azide compound, a meta-mouth compound, and a hexary compound. And a rubiimidazole compound, an organic boric acid compound, a disulfone compound, and an onium salt compound.
- Examples of the polymerization initiator that generates a radical by the action of light include an acetophenone-based compound, a benzoin-based compound, a benzophenone-based compound, a thioxanthone-based compound, and a benzyl-based compound.
- acetophenone-based compounds include, for example, 2,2-diethoxyacetophenone, 2-hydroxy_2-methynole-1-phenylpropane_1_one, 4,1-isopropynole1-2-hydroxy-12-methinolepropionofenone, 2 —Hydroxy-1-methionolepropiophenone, p-dimethylaminoacetone, p-tert-butyldichloroacetophenone, p_tert—butyltrichloroacetophenone, p-azidobenzaracetophenone, 1-hydroxycyclo to Xylfluoroketone and the like.
- benzoin-based compound examples include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin_n_propinoleatenoate, benzoinisopropinoleatenoate, benzoin_n_futinoleatenoate, benzoin isobutyl ether, benzyldimethylketal And the like.
- benzophenone-based compound examples include benzophenone, methyl o_benzoylbenzoate, Michler's ketone, 4,4'-bis (ethylbenzoaminobenzophenone), and 4,4'-dichlorobenzenebenzophenone.
- thioxanthone compound examples include thioxanthone, 2-methylthioxanthone, 2-ethylthioxanthone, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2-chlorothioxanthone, and 2,4-getylthioxanthone.
- benzyl compound for example, benzyl, benzyl-j3-methoxyshetyl acetal and the like can be mentioned.
- an acylphosphine oxide compound can be preferably used as a photoradical polymerization agent.
- the acylphosphine oxide compound include a compound represented by the following general formula (VIII) and a compound represented by the following general formula (IX). [0091] [Formula 11]
- R 11 and R 12 in the general formula (vm) each independently represent an alkyl group, Ariru group, ⁇ alkoxy group, Ariruokishi group, a heterocyclic group
- R 13 is an alkyl group, Ariru group, Represents a complex ring group. Further, R 11 and R 12 may combine to form a cyclic structure.
- the alkyl group, aryl group, heterocyclic group, alkoxy group and aryloxy group may have a substituent.
- substituents include an alkyl group, an aryl group, a hydroxy group, a nitro group, a cyano group, a halogen atom, an alkylsulfonyl group, an arylsulfonyl group, an alkoxy group, an alkoxycarbonyl group, an aryloxy group, an aryloxycarbonyl group, Examples include an asinole group, a (mono or dialkyl) amino group, an acylamino group, a sulfamoyl group, a sulfamoyl group, an alkylthio group, and an arylthio group.
- the substituent also includes a group in which one hydrogen atom has been removed from R 13 of the compound represented by the general formula (VIII).
- R " alkyl groups represented by R 12 or R 13, either Yogu linear saturated groups and unsaturated groups, may be either branched or cyclic.
- the alkyl group Preferred are an alkyl group having 1 to 30 carbon atoms, for example, a methyl group, an ethyl group, a propyl group, a butyl group, a hexyl group, an octyl group, a decyl group, an octadecyl group, a phenoxethyl group, and a cyclohexynole group. And the like, but not limited thereto.
- Examples of the aryl group represented by R U , R 12 or R 13 include an aryl group having 6 to 30 carbon atoms. Of these, phenyl, naphthyl and the like are preferred, for example, phenyl, 2-methylphenyl, 2,4-dimethylphenyl, 2,4,6-trimethylphenyl, 2-methoxyphenyl And a 2,6-dimethoxyphenyl group and a 2,6-dichlorophenyl group. However, it is not limited to these.
- the heterocyclic group represented by R U , R 12 or R 13 is preferably a heterocyclic group containing an N, O or S atom, for example, a pyridyl group, a furyl group, a chenyl group, an imidazolyl group And a pyrrolyl group.
- the alkoxy group represented by R 11 or R 12 is preferably an alkoxy group having 130 carbon atoms, for example, a methoxy group, an ethoxy group, a butoxy group, an octyloxy group, a phenoxy ethoxy group and the like. Can be However, it is not limited to these.
- Examples of the Ariruokishi group represented by R 11 or R 12 preferred is Ariruo alkoxy group having a carbon number of 6-30 instrument e.g., phenoxy group, methyl phenylalanine O alkoxy group, black hole Fueniruo alkoxy group, Metokishifue A dioxy group, an octyloxyphenyloxy group and the like. However, it is not limited to these.
- R 14 and R 16 in the general formula (IX) are each independently an alkyl group, Ariru group, a multi heterocyclic group
- R 15 is an alkyl group, Ariru group, an alkoxy group, Ariruokishi group, Represents a complex ring group.
- the alkyl group, aryl group, heterocyclic group, alkoxy group and aryloxy group represented by R 14 , R 15 or R 16 may have a substituent.
- the same substituents as in the case of (VIII) can be mentioned.
- alkyl group, aryl group, heterocyclic group, alkoxy group and aryloxy group in the general formula (IX) have the same meaning as in the general formula (VIII).
- acylphosphine oxide compound represented by the general formula (VIII) or (IX) examples include, for example, JP-B-63-40799, JP-B-5-29234, and JP-A-10-95578. And JP-A-10-29997.
- Specific examples of the acylphosphine oxide compounds include the following compounds (exemplified compound (1)-(26)), but the present invention is not limited thereto. is not. 1767
- the asinolephosphine oxide compound represented by at least one of the general formula (vm) and the general formula (ix) may be used alone or in combination of two or more. May be.
- polymerization initiators in particular, the above-mentioned acetophenone-based compounds, benzoin-based compounds, benzophenone-based compounds, thioxanthone-based compounds, benzinole-based compounds, and the like may be used in combination with the above-mentioned asinolephosphine oxide compound.
- Sulfonium salt, odonium salt and the like which are usually used as a photothion generator, are also purple. In the present invention, these may be used alone since they act as radical generators by irradiation with external light.
- a sensitizer may be used in addition to the polymerization initiator for the purpose of increasing the sensitivity. Examples of sensitizers include n-butylamine, triethylamine, tri-n-butylphosphine, and thioxanthone derivatives.
- aromatic sulfonium salts such as triaryl sulfonium salts and aromatic phosphonium salts such as diaryl rhododium salts can be used.
- a nonionic initiator such as nitrobenzyl ester of sulfonic acid, can be used.
- known photopolymerization initiators described in “Organic Materials for Imaging” edited by Organic Electronics Materials Research Group, published by Bunshin Publishing Company (1997), and the like can also be used.
- an aromatic sulfonium salt or the like is preferable because it is relatively thermally stable.
- aromatic sulfonium salts and aromatic rhododium salts are used as the onium salt photoreaction initiator
- the anions thereof include BF-, AsF-, SbF-, PF-, B (CF)-, etc.
- the aromatic sulfonium PF salt or SbF salt can be preferably used because it has solubility and moderate polymerization activity.
- one or more alkyl groups or alkoxy groups having 1 to 10 carbon atoms are introduced into the aromatic group, usually a phenyl group, of the aromatic group odonium salt or the aromatic sulfonium salt. Chemical structures are preferred.
- aromatic sulfonium salt PF salt or SbF salt is commercially available from Union Carbide Japan Co., Ltd. and the like. Asahi Denka Kogyo Co., Ltd. also sells PF salt of aromatic sulfonium under the trade name of Adeka Obtomer SP series.
- Aromatic sulfonium salts have an absorption up to about 360 nm and aromatic rhododium salts have an absorption up to about 320 nm.To cure, irradiate with ultraviolet light containing the spectral energy in this region. But preferred.
- Organic solvent having a boiling point of 150 ° C. or less include ethylene glycol monomethyl (Poly) alkylene glycol monoalkyl ethers such as noreether, ethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, etc., ethyl acetate, n-propyl acetate, iso-propyl acetate, and n-acetic acid —Acetates such as butyl and acetic acid iso_butyl; aromatic hydrocarbons such as benzene, toluene and xylene; methyl ethyl ketone, acetone, methyl isobutyl ketone, ethyl n-butyl ketone, diisopropyl ketone, Examples thereof include
- the amount of the organic solvent used is preferably 2 to 30% by weight, more preferably 2 to 15% by weight, based on the total amount of the binder, and particularly preferably non-use.
- the volatile component of the UV-curable binder after curing is preferably 5% by weight or less. For this reason, it is more preferable to use a solvent-free formulation that does not use an organic solvent for the binder.
- the remaining monomer can be post-polymerized by irradiation with UV light or heating.
- the polymerizable compound for adjusting the viscosity a conjugate having a low viscosity and copolymerizable with the polymerizable compound is used.
- acrylates, methacrylates and acrylamides there may be mentioned acrylates, methacrylates and acrylamides.
- triloxyshetyl (meth) acrylate phenyloxyshethyl (meth) acrylate, cyclohexyl (meth) acrylate, ethyl (meth) acrylate, methyl (meth) acrylate
- Acrylate ethylene glycol di (meth) acrylate, divinyl benzene, methylene bisacrylamide, 1,6-di (meth) atalyloyloxy hexane, etc.
- triloxyshetyl (meth) acrylate ethylene glycol di (meth) Atalylate, 1,6-di (meth) atalyloyloxyhexane and the like.
- bifunctional or higher functional cyclic ethers generally have high reactivity but high viscosity.
- Monofunctional cyclic ethers can be used in combination to adjust the viscosity to low.
- inorganic powders As the powder material, inorganic powders, organic powders, and all inorganic-organic composite powders can be used.
- inorganic powder for example, metals, oxides, composite oxides, hydroxides, charcoal Examples include acid salts, sulfates, silicates, phosphates, nitrides, carbide sulfides, and composites of at least two or more of these.
- Examples of the organic powder include synthetic resin particles and natural polymer particles. Specific examples include acrylic resin, polyethylene, polypropylene, polyethylene oxide, polypropylene oxide, polyethyleneimine, polystyrene, polyurethane, polypropylene, Polyester, polyamide, polyimide, carboxymethylcellulose, gelatin, starch, chitin, chitosan and the like, preferably acrylic resin, polyurethane, gelatin, polystyrene and the like.
- the organic powder material powder particles obtained by bulk polymerization and pulverization of a polymerizable compound used as a binder can be used.
- the polymerizable compound used as the binder can be subjected to suspension polymerization or pearl polymerization to obtain a powder material having a desired particle size.
- the refractive indices provided by both the powder material and the binder can be made close.
- Examples of the inorganic-organic composite powder include a composite of the organic powder and the inorganic powder.
- the average particle size of the powder material is preferably from 0.1 to 1,000 zm, more preferably from 0.5 to 300 xm, even more preferably from 0.8 to 50 ⁇ , most preferably 3
- the range is 30 zm.
- the average particle diameter means a volume average particle diameter, which can be measured by, for example, COULTER MULTISIZER of Coulter.
- any shape such as amorphous, spherical, flat, needle, and porous can be used.
- the range of the refractive index n of the powder material is preferably 1.4 to 1.7.
- n be the refractive index of the bonding agent in a state where the powder materials are bonded to each other.
- the refractive index of a bonding agent formed by polymerization of the compound is defined as n. (N_n) indicates that the smaller the absolute value, the higher the transparency of the obtained model
- substantially transparent or “nearly transparent” means that the transmittance is 50% or more per 1 cm of the optical path.
- Colorants that can be used in the production method of the present invention are roughly classified into dyes and pigments, and dyes can be preferably used.
- a wide range of hues can be reproduced with different chromas by using the dyes of yellow (Y), magenta (M) and cyan (C), which are the three primary colors of the subtractive color method, as the dye.
- Y yellow
- M magenta
- C cyan
- an oil-soluble dye can be preferably used as the dye.
- An oil-soluble dye refers to a dye that is substantially insoluble in water. Specifically, the solubility in water at 25 ° C (the mass of the dye that can be dissolved in 100 g of water) is lg or less, preferably 0.5 g or less, more preferably 0.1 lg or less. . Therefore, the oil-soluble dye means a so-called water-insoluble pigment or oil-soluble dye, and among these, the oil-soluble dye is preferred.
- the oil-soluble dye may be used alone, or may be used by mixing several kinds. Further, a coloring material such as other water-soluble dyes, disperse dyes, and pigments may be contained as necessary within a range not to impair the effects of the present invention.
- any yellow dye can be used.
- Azomethine dyes having, for example, benzylidene dyes and monomethine oxonol dyes
- methine dyes for example, quinone dyes such as naphthoquinone dyes and anthraquinone dyes
- the other dyes include quinophthalone dyes, nitro'nitroso dyes, ataridine dyes, and ataridinone dyes. it can.
- any magenta dye can be used.
- aryl or hetarylazo dyes having phenols, naphthols, and diphosphines as coupling components azomethine dyes having pyrazolones and pyrazolotriazoles as coupling components; e.g., arylidene dyes, styryl dyes, merocyanine dyes Methine dyes such as oxonol dyes; carbonium dyes such as diphenyl methane dye, triphenyl methane dye and xanthene dye; quinone dyes such as naphthoquinone, anthraquinone and anthrapyridone; Condensed polycyclic dyes; and the like.
- any cyan dye can be used.
- indoor diphosphine dyes, indophenol dyes or azomethine dyes having pyrrolotriazoles as coupling components polymethine dyes such as cyanine dyes, oxanol dyes, and merocyanine dyes; diphenylmethane dyes, triphenylmethane dyes, and xanthene dyes Carbonyl dyes; phthalocyanine dyes; anthraquinone dyes; for example, aryl or hetarylazo dyes having phenols, naphthols, and anilines as coupling components; indigo-thioindigo dyes;
- each of the above-mentioned dyes may exhibit each color of yellow, magenta, and cyan only after a part of the chromophore is dissociated.
- the counter force thione may be an alkali metal or ammonia. It may be an inorganic cation, an organic cation such as pyridinium or a quaternary ammonium salt, or a polymer cation having such a partial structure.
- CI Solvent 'Black 3, 7, 27, 29 and 34 include, for example, CI Solvent 'Black 3, 7, 27, 29 and 34; CI Sonorrevent' Yellow 14, 16, 19, 29, 3 0, 56, 82, 93 and 162; CI sonorevent 'Red 1, 3, 8, 18, 24, 27, 43, 49, 51, 72, 73, 109, 122, 132 and 218; CI sonorevent' nolet 3 ; CI Sonore 'Bunore 2, 11, 25, 35, 38, 67 and 70; CI sonorevent' Green 3 and 7; and CI Solvent 'orange 2; Particularly preferred among these are Nubian Black PC-0850, Oil Black HBB, Oil Yellow 129, Oil Yellow 105, Oil Pink 312, Oil Red 5B, Oil Scarlet 308, Vali Fast Blue 2606, Oil Blue BOS (Orient Aizen Spilon Blue G NH (Hodogaya Chemical Co., Ltd.), NeopenYellow 075, Neopen Mazenta SE137 8, Neopen Blue 808, Neopen Blue FF401
- a disperse dye can be used as long as it is soluble in a water-immiscible organic solvent.
- Preferred examples thereof include CI Disperse Yellow 5, 42, 54, 64, 79, 82, 83, 93, 99, 100, 119, 122, 124, 126, 160, 184: 1, 186, 198, 199, 201, 204, 224 and 237; CI Disney Orange 13, 29, 31: 1, 33, 49, 54, 55, 66, 73, 118, 119 and 163; CI Disperse Red 54, 60, 72, 73 , 86, 88, 91, 92, 93, 111, 126, 127, 134, 135, 143, 145, 152, 1 53, 154, 159, 164, 167: 1, 177, 181, 204, 206, 207, 221, 239, 240, 25 8, 277, 278, 283, 311, 323, 343, 348, 356,
- Particularly preferred oil-soluble dyes include azo or azomethine dyes represented by the following formula (1) or (2).
- Dyes represented by the following general formula (2) are known as dyes generated from couplers and developing agents by oxidation in photographic materials.
- [0126] [Formula 16] General formula (1) General formula (2)
- RR 2 , R 3 and R 4 are each independently a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, Hydroxy, nitro, amino, anolequinolamino, alkoxy, aryloxy, amide, arylamino, ureido, sulfamoylamino, alkylthio, arylthio, alkoxycarbonylamino Group, sulfonamide group, sulfamoyl group, sulfamoyl group, sulfonyl group, alkoxycarbonyl group, heterocyclic oxy group, azo group, acyloxy group, rubamoyloxy group, silyloxy group, aryloxycarbonyl group, aryloxycarbonyl group Amino, imide, heterocyclic thio, sulfiel, phosphoryl, acyl
- R 2 is a hydrogen atom, a halogen atom, an aliphatic group, an alkoxy group, an aryloxy group, an amide group, an ureido group, a sulfo group, among the above substituents. It is preferably an amoylamino group, an alkoxycarbonylamino group or a sulfonamide group.
- the aliphatic group means an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an alkynyl group, a substituted alkynyl group, an aralkyl group and a substituted aralkyl group.
- the aliphatic group may have a branch or form a ring.
- the aliphatic group preferably has 1 to 20 carbon atoms, more preferably 1 to 18 carbon atoms.
- the aryl moiety of the aralkyl group and the substituted aralkyl group is preferably phenyl or naphthyl, and particularly preferably phenyl.
- Examples of the substituent in the alkyl portion of the substituted alkyl group, the substituted alkenyl group, the substituted alkynyl group and the substituted aralkyl group include the substituents described in the description of R 1 to R 4 .
- Substituted aralkyl group Examples of the substituent in the substituted moiety are the same as the following examples of the substituted aryl group.
- the aromatic group means an aryl group and a substituted aryl group.
- the aryl group is particularly preferably phenyl, which is preferably phenyl or naphthyl.
- the aryl group of the substituted aryl group is the same as the aryl group described above. Examples of the substituent of the substituted aryl group include the substituents described in the description of R 1 R 4 .
- A represents —NR 5 R 6 or a hydroxy group
- R 5 and R 6 each independently represent a hydrogen atom, an aliphatic group, an aromatic group, Represents a heterocyclic group. Les, Shi preferred that an NR 6 is A.
- R 5 and R 6 may be bonded to each other to form a ring.
- R 5 and R 6 are each preferably a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group, more preferably a hydrogen atom, an alkyl group having 1-18 carbon atoms or a carbon atom. Most preferably, the number is one to eighteen substituted alkyl groups.
- Y represents an unsaturated heterocyclic group.
- Y is preferably a 5- or 6-membered unsaturated heterocyclic ring.
- An aliphatic ring, an aromatic ring, or another hetero ring may be condensed with the hetero ring.
- heteroatoms in the heterocycle include N, ⁇ , and S.
- the unsaturated heterocyclic ring examples include a pyrazole ring, an imidazole ring, a thiazole ring, an isothiazole ring, a thiadiazole ring, a thiophene ring, a benzothiazole ring, a benzoxazole ring, a benzoisothiazole ring, a pyrimidine ring, a pyridine ring, and a quinoline. Rings and the like are preferred. Further, the unsaturated heterocyclic group may have a substituent described above for R 1 R 4 .
- X represents a residue of a color photographic coupler.
- the followings are preferred as the residue of the color photographic coupler.
- a coupler represented by the formula (I) in claim 1 a coupler represented by the general formula (I) in column 1, line 4555 of US Pat. No. 5,066,576, and a paragraph of JP-A-4-274442.
- Couplers (especially Y-1 (p. 17), Y-54 (p. 41)) represented by the formula (II)-(IV) at column 7, lines 36-58 of U.S. Pat. No. 4,476,219. Couplers (especially II-17, 19 (column 17), ⁇ -24 (column 19)).
- Examples of the yellow dye include ketoimine-type dyes obtained from the couplers.
- dyes described in JP-A-2001-294773, JP-A-2002-121414, JP-A-2002-105370, JP-A-2003-26974, and JP-A-2003-73598 are exemplified.
- a pyrazole aldehyde compound represented by the general formula ( ⁇ -II) described in JP-A-2003-73598 is more preferably used, and the following ⁇ -1 can be exemplified.
- Magenta coupler US Patent Nos. 4,310,619, 4,351,897, EP 73,636, US Patents 3,061,432, 3,725,067, Research '' Disclosure No. 24220 (June 1984), No. 24230 (June 1984), JP-A Nos. 60-33552, 60-43659, 61-72238, 60-35730, and 55 — 118034, 60-60 No. 85951, U.S. Pat.Nos.
- Cyan coupler US Pat. Nos. 4,052,212, 4,146,396, 4,228,233, 4,296,200, European Patent 73,636, JP No. 204843, CX-1, 3, 4, 5, 11, 12, 14, 15 (p. 14 16); JP-A 4-43345, C-7, 10 (p. 35), 34, 35 (p. 37) ), (1-1), (1-17) (p. 4243); a coupler represented by the general formula (la) or (lb) in claim 1 of JP-A-6-67385.
- JP-A-62-215272 page 91
- JP-A-2-33144 pages 3, 30
- EP 355, 660A pages 4, 5, 45, 47
- the couplers described in ()) are also useful.
- a dye represented by the following general formula (3) is particularly preferably used as the magenta dye.
- 3 1 represents an electron-withdrawing group having a Hammett's substituent constant ⁇ ⁇ value of 0.20 or more.
- ⁇ 1 is preferably an electron-withdrawing group having a ⁇ ⁇ value of 0.30 or more and 1.0 or less.
- Preferred specific substituents include the electron-withdrawing substituents described below. Among them, among them, an acyl group having 2 to 12 carbon atoms, an alkyloxycarbonyl group having 2 to 12 carbon atoms, a nitro group, and a cyano group are preferable.
- C1-C12 alkylsulfonyl group C6-C18
- An arylsulfonyl group, a carbamoyl group having 11 to 12 carbon atoms and a halogenated alkyl group having 11 to 12 carbon atoms are preferred.
- Particularly preferred are a cyano group, an alkylsulfonyl group having 11 to 12 carbon atoms, and an arylsulfonyl group having 6 to 18 carbon atoms, and the most preferred is a cyano group.
- Z 2 represents a hydrogen atom, an aliphatic group or an aromatic group.
- R 1 R 6 has the same meaning as in each of the general formulas (1).
- Q represents a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group.
- Q is preferably a group consisting of a group of nonmetallic atoms necessary to form a 5- to 8-membered ring.
- an aromatic group or a heterocyclic group is particularly preferable.
- the 58-membered ring may be substituted, may be a saturated ring or may have an unsaturated bond.
- Preferred non-metallic atoms include a nitrogen atom, an oxygen atom, a zeolite atom or a carbon atom.
- a ring structure examples include, for example, a benzene ring, a cyclopentane ring, a cyclohexane ring, a cycloheptane ring, a cyclooctane ring, a cyclohexene ring, a pyridine ring, a pyrimidine ring, a pyrazine ring, a pyridazine ring, and a triazine.
- a dye represented by the following general formula (4) is particularly preferably used as the magenta dye.
- G is a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group,
- R 1 , R 2 , A, B 1 and B 2 have the same meanings as those in the general formula (2), and their preferred ranges are also the same.
- L represents an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an ester group, or an amino group.
- L represents an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an ester group, or an amino group.
- A is preferably one NR 5 R 6 L is preferably a 5-membered nitrogen-containing heterocyclic ring
- Examples include an imidazole ring, a triazole ring and a terazole ring.
- the power indicating the exemplary compound (M0, M-1-6, a_21-25) of the magenta dye is described below. Detailed explanation For the sake of clarity, the present invention is not limited by these.
- M0, M-4, M-6, and a-21 can be used, and particularly, M-4, M_6, and a_21 can be preferably used.
- a pyrazolotriazoleazomethine compound represented by the general formula (III) described in JP-A-2002-121414 is preferably used, and M-1 shown below can be exemplified.
- the compound represented by the general formula (3) can be synthesized with reference to, for example, the methods described in JP-A-2001-335714 and JP-A-55-161856. Further, the compound represented by the general formula (4) is referred to, for example, the methods described in JP-A-4-126772 and JP-B-7-94180, and the methods described in JP-A-2001-240763. Can be synthesized.
- a pyrrolotriazole azomethine dye represented by the following general formula (5) is particularly preferably used.
- ⁇ 3 and ⁇ 4 are each independently the same as G in the general formula (4). Further, ⁇ 3 and ⁇ 4 may be bonded to each other to form a ring structure.
- Zeta 3 what is Hammett substituent constant sigma [rho value 0.30 or more electron withdrawing group is a sharp absorption and is more preferable.
- Zeta 3 is more preferably Hammett Ru substituent constant sigma [rho value 0.45 or more electron-withdrawing groups der, Bruno, preferred Met substituent constant sigma [rho value 0.60 or more electron-withdrawing group is most Sile,.
- the Zeta 3 and Zeta 4 of Hammett sum of substituent constant sigma [rho value of 0.70 or more of exhibits excellent hue of a cyan color, more preferred.
- ⁇ is an atomic group forming a 1,2,4-triazole ring fused to the 5-membered ring in the general formula (5), and two atoms beta 3 and beta 4 of the condensation unit, in either a nitrogen atom and the other is a carbon atom.
- the compound represented by the general formula (5) is preferably used as a cyan dye. It can also be used as a magenta dye by changing the substituent.
- Hammett's rule is an empirical rule proposed by P. Hammett in 1935 to quantitatively discuss the effect of substituents on the reaction or equilibrium of benzene derivatives. ing.
- the substituent constants determined by Hammett's rule include ⁇ ⁇ value and ⁇ m value, and these values can be found in many general books. For example, JA Dean, ed., “Lange's Handbook of Chemistry” 12th edition, 1979 (Mc Graw-Hill) and the special edition of Chemical Science, 122, 96-103, 1979 (Nankodo).
- each substituent is limited or described by Hammett's substituent constant ⁇ ⁇ . It is needless to say that even if the value is unknown in the literature, it includes substituents that would fall within the range when measured based on Hammett's rule.
- ⁇ ⁇ values are used as a measure of the electronic effect of the substituent, regardless of the position of substitution. In the present invention, the ⁇ ⁇ value is used in this sense.
- Examples of the electron-withdrawing group having a Hammett substituent constant ⁇ ⁇ value of 0.60 or more include a cyano group, a nitro group, and an alkylsulfonyl group (for example, a methanesulfonyl group, an arylsulfonyl group (for example, a benzenesulfonyl group)).
- Examples of the electron-withdrawing group having a nodmet ⁇ ⁇ value of 0 ⁇ 45 or more include an asinole group (eg, an acetyl group), an alkoxycarbonyl group (eg, a dodecyloxycarbonyl group), A ryloxycarbonyl group (for example, m-chlorophenoxycarbonyl), an alkylsulfiel group (for example, n-propanolethulfel), an arylsulfiel group (for example, phenylsulfinyl), a sulfamoyl group (for example, For example, N-ethylsulfamoyl, N, N-dimethylsulfamoyl), halogenated alkyl groups (for example, Mention may be made of trifluoropropyl methylate Norre).
- an asinole group eg, an acetyl group
- an alkoxycarbonyl group eg
- Examples of the electron-withdrawing group having a Hammett substituent constant ⁇ ⁇ value of 0.30 or more include, in addition to the above, an acyloxy group (for example, acetoxy), a carbamoyl group (for example, methyl carbamoyl, , ⁇ -dibutylcarbamoyl), halogenated alkoxy groups (for example, trifluoromethinoleoxy), halogenated aryloxy groups (for example, pentafluorophenyloxy), sulfo Nyloxy group (for example, methylsulfonyloxy group), halogenated alkylthio group (for example, difluoromethylthio), aryl group substituted with two or more electron-withdrawing groups having a ⁇ value of 0.15 or more (for example, 2,4-dinitrophenyl, pentachlorophenyl), and heterocycles (for example, 2-benzoxazolyl, 2-benzothiazo
- the cyan dye As the cyan dye, the dyes described in JP-A-2002-121414, JP-A-2002-105370, JP-A-2003-3109, and JP-A-2003-26974 are also preferably used. it can.
- Pyrrolotriazoluazomethine compounds represented by the general formula (IV-la) and phthalocyanine ligations represented by the general formulas (C-II-11) and (C-II-12) described in JP-A-2002-121414 are preferably used, and C-11 and C-101 shown below can be exemplified.
- an oil-soluble dye represented by the following general formula (A-I) can be preferably used.
- ⁇ represents a group selected from NR R, -CONR R, —CO R and a sulfo group.
- R, R are each
- M represents a hydrogen atom, a metal element, a metal oxide, a metal hydroxide or a metal halide.
- Each of 1 2 3 4 independently represents a hydrogen atom or a monovalent substituent.
- a— a, b b is X X
- 1 represents the number of Y, each independently being an integer of 0-4. Where the sum of a-a is 2 or more
- oil-soluble dyes represented by the general formula (AI) can be particularly preferably used.
- an oil-soluble dye whose oxidation potential is more noble than 1.0 OV (SCE).
- SCE 1.0 OV
- oxidation potential can be easily measured by those skilled in the art. Regarding this method, f. Is described in New Instrumental Methods in Electrochemistry by P. Delahay (1954, Interscience Publishers, Inc .; AJ Bard, et al., "Electrochemical Methods” (1980, John Wiley &Sons); Akira Fujishima, et al., “Electrochemical Measurements” (1984, Published by Gihodo Publishing Co., Ltd.) ing.
- the oxidation potential of a test sample was determined to be 1 X 10-in a solvent such as sodium perchlorate, tetrapropylammonium perchlorate, and dimethylformamide diacetonitrile containing a supporting electrolyte.
- This value may deviate by several tens of mil volts due to the effect of liquid potential difference or liquid resistance of the sample solution.However, it is necessary to ensure the reproducibility of the potential by inserting a standard sample (for example, quinone at a hide port). Can be. Further, a suitable supporting electrolyte and solvent can be selected depending on the oxidation potential and solubility of the test sample. The supporting electrolytes and solvents that can be used are described in Akira Fujishima et al., “Electrochemical Measurement Method” (1984, published by Gihodo Shuppan Co., Ltd.), pages 101-118.
- the oxidation potential in a non-associated state is measured in the above-mentioned concentration range of the measurement solvent and the phthalocyanine compound sample.
- Eox indicates the ease with which electrons move from the sample to the electrode. The larger the value, the more difficult the electron transfer from the sample to the electrode (the higher the oxidation potential), in other words, the higher the oxidation potential. It means that it is difficult.
- a black (black) dye may be used in combination with the CMY3 primary colors.
- Black dye is CMY
- dyes other than those described above dyes generally used in the technical field of printing (eg, printing inks, color materials for copying such as thermal ink jet recording, electrostatographic recording, or color proofing plates) may be used.
- Power S can.
- the pigment examples include, but are not limited to, all commercially available organic pigments and inorganic pigments, or pigments dispersed in an insoluble resin or the like as a dispersion medium, or a resin grafted on the pigment surface.
- One or the like can be used.
- resin particles dyed with a dye can also be used.
- a colored image using the YMC binder is formed on the outline of the cross-sectional shape, and a white reflective layer is provided immediately below the colored image.
- the white reflective layer has a role corresponding to, for example, a base in a color print, and it is preferable to use a binder containing a white pigment (white binder) immediately inside a landing image.
- white pigments include basic lead carbonate (2PbCO Pb (OH),
- titanium strontium titanate SiO, so-called titanium strontium
- titanium oxide has a smaller specific gravity and a larger refractive index than other white pigments, and is chemically and physically stable. Therefore, the hiding power and the coloring power as a pigment are large. Excellent durability against acids, alkalis and other environments. Therefore, it is preferable to use titanium oxide as the white pigment.
- other white pigments may be other than the listed white pigments may be used depending on the type of powder material and binder component.
- CMY pigments can be used instead of CMY dyes.
- organic pigment and the inorganic pigment include, for example, CI Pigment Yellow 1 (Fast Yellow G, etc.) and CI Pigment Yellow 74 as those exhibiting a yellow color.
- Monoazo pigments CI pigment yellow 12 (such as disazo yellow AAA), disazo pigments such as CI pigment yellow 17, non-benzidine-based azo pigments such as CI pigment yellow 180, CI pigment yellow 100 (tartrazine yellow lake) Azo pigments such as CI Pigment Yellow 95 (condensed azo yellow GR etc.), acidic dye lake pigments such as CI Pigment Yellow 1 15 (quinoline yellow lake etc.), CI Pigment Yellow 18 ( Basic dye lake pigments such as thioflavin lake), anthraquinone pigments such as flavanthrone yellow (Y-24), isoindolinone pigments such as 3RLT (Y_1 10), quinophthalone yellow (Y-138) Quinophthalone pigments such as), isoindolin yellow (Y_l 39) Dorin pigment, C.
- monoazo pigments such as CI Pigment Red 3 (Toluidine Red, etc.), disazo pigments such as CI Pigment Red 38 (Pyrazolone Red ⁇ , etc.), C.I.
- Azo lake pigments such as Red 53: 1 (Lake Red C etc.) and CI Pigment Red 57: 1 (Brilliant Carmine 6 ⁇ ); Condensed azo pigments such as CI Pigment Red 144 (Condensed Azo Red BR etc.); CI Pigment Red Acid dye lake pigments such as 174 (Phloxine lake), basic dye lake pigments such as CI Pigment Red 81 (rhodamine 6G 'lake), and anthra such as CI Pigment Red 177 (Dianthraquinonyl red).
- Quinone pigments such as CI Pigment Red 88 (such as CI Indigo Bordeaux), CI pigment reds Perinone pigments such as 194 (perinone red, etc.), perylene pigments such as CI pigment tread 149 (perylene scarlet, etc.), quinacridone pigments such as CI pigment red 122 (quinacridone magenta, etc.), and CI pigment red 180 (isoindolinone red 2BLT, etc.) And alizarin lake pigments such as isoindolinone pigments and CI Pigment Red 83 (such as Madder Lake).
- CI pigments such as CI Pigment Red 88 (such as CI Indigo Bordeaux), CI pigment reds Perinone pigments such as 194 (perinone red, etc.), perylene pigments such as CI pigment tread 149 (perylene scarlet, etc.), quinacridone pigments such as CI pigment red 122 (quinacridone magenta, etc.), and CI pigment red 180 (isoind
- Pigments exhibiting a cyan color include disazo pigments such as CI Pigment Blue 25 (such as dianisidine blue), phthalocyanine pigments such as CI Pigment Blue 15 (such as phthalocyanine blue), and CI Pigment Blue 24 (peacock). Acidic such as blue lake Dye lake pigments, basic dye lake pigments such as CI Pigment Blue 1 (Victoria Pure Blue B Lake), anthraquinone pigments such as CI Pigment Blue 60 (Indanthrone Blue), CI Pigment Blue 18 ( And alkali blue pigments such as alkali blue V-5: 1).
- UV exposure for curing the UV-curable binder
- commonly used high-pressure mercury lamps, low-pressure mercury lamps, DeepUV lamps, halogen lamps, etc. can be used, and the exposure wavelength is 450 to 250 nm, preferably 400 to 300 nm.
- Exposure E Nerugi one is preferably is 500mjZcm 2 following fixture 10- 400mj / cm 2 is more preferable Les,.
- UV light can be guided from the UV light source to the powder material surface using a UV-transmitting optical fiber.
- KAYARAD DPCA60 captolactone-modified dipentaerythritol hexatalylate; Nippon Kayaku Co., Ltd.
- HDDA (1,6-hexanediol diatalylate; manufactured by Daicel UCB)
- Ethoxylated pentaerythritol tetraatalylate manufactured by SARTOMER
- M310 trimethylolpropane PII-modified triatalylate; manufactured by Toagosei Co., Ltd.
- M309 trimethylolpropane triatalylate; manufactured by Toagosei Co., Ltd.
- KAYARAD DPHA dipentaerythritol hexatalylate; manufactured by Nippon Kayaku Co., Ltd.
- TMPTMA Trimethylolpropane Trimethaphthalate; manufactured by Daicel UCB
- DPHA Dipentaerythritol hexatalylate; in-house synthesized product
- PEG300 diatalylate (PAG300DA; Daicel UCB) Modified bisphenol A type epoxy acrylate (Ebecryl 3701; made by Daicel UCB)
- TMPTA trimethylolpropane triatalylate
- TMPEOTA Trimethylolpropane ethoxytriatalylate
- Titanium oxide (KRONOS KA-15; particle size 0.4 / im; manufactured by Titanium Industries)
- Photopolymerization initiator 2-hydroxy_2_methylpropiophenone 0.6 g
- Photopolymerization initiator 2-hydroxy_2_methylpropiophenone 0.6 g
- the above components were kneaded with a three-roll mill to obtain a white binder having a viscosity of about 25 mPa's at 25 ° C.
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g
- Y-1, M-1 and C-11 are as described in the section of the disclosure of the invention.
- the above components were stirred and mixed to obtain a yellow binder having a viscosity at 25 ° C of about 20 mPa ⁇ s .
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g
- magenta binder having a viscosity of about 20 mPa's at 25 ° C.
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g
- the coloring data After laying a powder material layer of polymethyl methacrylate (MB20X-5, manufactured by Sekisui Chemical Co., Ltd .; average particle diameter 5 ⁇ m) as a powder material to a thickness of about 100 ⁇ m with a rod, the coloring data
- the color binders (yellow, magenta, cyan, black), the white binder, and the colorless transparent binder are appropriately discharged from each inkjet discharge nozzle based on the ink jet nozzle.
- the dots were continuously arranged at a resolution of 600 dpi (dot interval of about 42 ⁇ m) while adjusting the ink amount as needed in areas requiring strength. Droplets were ejected so as to form a line. Next, a powder material layer thickened by a thickness corresponding to one slice pitch was formed, and a binder corresponding to a cross-sectional shape corresponding to the cross-section was repeatedly supplied to prepare a three-dimensional structure.
- Polymerizable compound ethoxylated pentaerythritol tetraatalylate 8.4 g
- Polymerizable compound HDDA 11.6 g
- a three-dimensional structure was prepared and evaluated in the same manner as in Example 1, except that the was used.
- Polymerizable compound M350 10.0 g
- Polymerizable compound: IB ⁇ A A three-dimensional structure was prepared and evaluated in the same manner as in Example 1 except that 10.0 g was used.
- Polymerizable compound KAYARAD DPCA60 5.2 g
- Polymerizable compound HDDA 14.8 g
- Polymerizable compound M350 5. Og Polymerizable compound: M310 5. Og Polymerizable compound: M309 5.0 g Polymerizable compound: IBOA 5.0 g was used in the same manner as in Example 1 except that 5.0 g of IBOA was used. Created and evaluated.
- Polymerizable compound KAYARAD DPCA60 5.2 g
- Polymerizable compound HDDA 14.8 g
- Polymerizable compound KAYARAD DPHA 5.
- Og Polymerizable compound TMPTMA 15.
- MIBK Methyl isobutyl ketone
- Polymerizable compound KAYARAD DPCA60 5.2 g
- Polymerizable compound HDDA 14.8 g
- Polymerizable compound KAYARAD DPCA60 20. Og
- the binder components were stirred and mixed by using to obtain a colorless and transparent binder having a viscosity of about 1, OOOmPa's at 25 ° C.
- the ink could not be ejected normally from the inkjet head, and a three-dimensional model was not obtained.
- Polymerizable compound KAYARAD DPHA 5. Og
- the texture was evaluated as a sensory evaluation and divided into the following ranks.
- the viscosity of the binder used in the examples was measured at 25 ° C. and 10 rpm using an E-type viscometer (Tokyo Keiki VISCONIC EL D).
- the binder used in the comparative example was measured in the same manner as the binder used in the example except that the number of rotations was changed to Comparative Example 1-1: 0.5 rpm and Comparative Example 1-2: 2.5 rpm, respectively.
- Comparative Example 1-1 0.5 rpm
- Comparative Example 1-2 2.5 rpm, respectively.
- Photopolymerization initiator 2-hydroxy_2-methylpropiophenone 0.6 g
- Photopolymerization initiator 2-hydroxy_2_methylpropiophenone 0.6 g
- the above components were kneaded with a three-roll mill to obtain a white binder.
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g
- Colorant Y-1 0.8 g
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g Colorant: M-10.8 g
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g Colorant: C 1 0.8 g
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g
- Colorant Y-10.3 g
- Example 11 A three-dimensional structure was produced in the same manner as in Example 1.
- a cubic object having a length, width, and height of 3 cm created by the above method was used as an index.
- the smoothness of the surface was sensory-evaluated by the feeling of touching with the hand, and used as an index of texture.
- the liquid specific gravity D1 was measured using a float scale.
- the above composition was sandwiched between glass plates so that the thickness of the obtained coating film became 100 ⁇ , and irradiation was performed at about lj / cm 2 with a metal halide lamp.
- the solid specific gravity D2 of this coating film was determined, and the curing shrinkage was determined by the following formula.
- Polymerizable compound PEG300 diatalylate 20g
- a three-dimensional structure was created and evaluated in the same manner as in Example 2-1 except that was used.
- Polymerizable compound A three-dimensional structure was prepared and evaluated in the same manner as in Example 2-1 except that 20 g of modified bisphenol A type epoxy acrylate was used.
- Polymerizable compound aliphatic urethane acrylate 10g
- a three-dimensional structure was created and evaluated in the same manner as in Example 2-1 except that was used.
- the above-mentioned aliphatic urethane acrylate has the following chemical structure.
- E ⁇ is ethylene oxide
- HDI is hexamethylene diisocyanate. It is.
- Polymerizable compound KAYARAD DPCA60 10g
- Polymerizable compound IB ⁇ A 10g Instead of 0.5g photopolymerization initiator
- Polymerizable compound oxetane compound 20 g
- Photopolymerization initiator triphenylsulfoniumhexafluoroammonate 1.
- a three-dimensional model was prepared and evaluated in the same manner as in Example 2-1 except that Og was used. did.
- the oxetane compound has the following structural formula.
- Polymerizable compound KAYARAD DPCA60 10g
- Polymerizable compound IB ⁇ A 10g
- Polymerizable compound A three-dimensional structure was prepared and evaluated in the same manner as in Example 2-1 except that 20 g of TMPTA was used.
- Polymerizable compound KAYARAD DPCA60 10g
- Polymerizable compound IBOA 10g
- Polymerizable compound A three-dimensional structure was prepared and evaluated in the same manner as in Example 2-1 except that 20 g of TMPEOTA was used.
- the shape accuracy was obtained by measuring the length of the obtained molded product, and was classified into the following ranks according to the accuracy with respect to the design dimensions.
- the texture was evaluated as a sensory evaluation, and was classified into the following ranks.
- Photopolymerization initiator an acylphosphine oxide compound (Exemplified Compound (2)) 0.6 g or more of components were stirred and mixed to obtain a colorless binder.
- Photopolymerization initiator 0.6 g of acylphosphine oxide compound (Exemplified Compound (2))
- White pigment Titanium oxide 3g
- the above components were kneaded with a three-roll mill to obtain a white binder.
- Photopolymerization initiator acylphosphine oxide compound (exemplified compound (2)) 0.5 g
- Colorant Y-10.8 g
- Photopolymerization initiator acylphosphine oxide compound (exemplified compound (2)) 0.5 g Colorant: M-1 0.8 g
- Photopolymerization initiator acylphosphine oxide compound (exemplified compound (2)) 0.5 g
- Colorant C-10.8 g
- Photopolymerization initiator acylphosphine oxide compound (exemplified compound (2)) 0.5 g
- Colorant Y-10.3 g
- Example 3 In the same manner as in Example 11, a three-dimensional structure was created. Incidentally, an exposure energy of 30 mJZcm 2 was applied to the powder material surface by a high-pressure mercury lamp.
- a cubic object having a length, width, and height of 3 cm created by the above method was used as an index.
- the smoothness of the surface was subjected to a sensory evaluation based on the feeling of touching the surface with a hand, and used as an index of the texture.
- a three-dimensional structure was created and evaluated in the same manner as in Example 3-1 except that was used.
- a three-dimensional structure was created and evaluated in the same manner as in Example 3-1 except that was used.
- a three-dimensional structure was created and evaluated in the same manner as in Example 3-1 except that was used.
- the texture was evaluated as a sensory evaluation and divided into the following ranks.
- Polymerizable compound KAYARAD DPCA60 6. Og
- Photopolymerization initiator 1-hydroxycyclohexyl phenyl ketone 0.5 g
- Colorant a-21 0.3 g
- a powder material layer of polymethyl methacrylate (MB20X-5, manufactured by Sekisui Chemical Co., Ltd .; average particle size: 5 ⁇ m) as a powder material to a thickness of about 80 ⁇ with a rod based on the data Discharge of the colored binder from the inkjet discharge nozzle is performed appropriately.
- the dots were continuously formed at a resolution of 600 dpi (dot intervals of about 42 ⁇ m) while adjusting the ink amount as needed in areas requiring strength. Droplets were ejected so as to form lines.
- Exposure energy of 100 mj / cm 2 was applied to the powder material surface with a high-pressure mercury lamp.
- a three-dimensional structure was created by forming a powder forming layer thicker by a thickness corresponding to one slice pitch, and repeatedly supplying a binder corresponding to a cross-sectional shape corresponding to the cross section.
- a three-dimensional structure was created and evaluated in the same manner as in Example 4-1 except that was used.
- a three-dimensional structure was created and evaluated in the same manner as in Example 4-1 except that was used.
- a three-dimensional structure was created and evaluated in the same manner as in Example 4-1 except that was used.
- Polymerizable compound M350 10. Og Polymerizable compound: IBOA 10.0 g Photopolymerization initiator: 2-hydroxy_2-methylpropiophenone 0.3 g Coloring agent: AII-17 0.3 g
- a three-dimensional structure was prepared and evaluated in the same manner as in Example 5-1 except that was used.
- a three-dimensional structure was prepared and evaluated in the same manner as in Example 5-1 except that was used. The above results are summarized in Table 6 below.
- Example 4 1 a-2 1 1.43 ⁇ ⁇ ⁇ Example 4 2 M—4 1.06 ⁇ ⁇ ⁇ Example 4 3 M—6 1.22 ⁇ ⁇ ⁇ Example 4 4 M 0 ⁇ 1 0 ⁇ ⁇ ⁇ Example 5-1 All- 1 7 1.15 ⁇ ⁇ ⁇ Example 5-2 All- 2 1 1.2.7 ⁇ ⁇ ⁇ Example 5— 3 DD-2 0.7.5 ⁇ ⁇ Ink jetting properties were classified into the following ranks.
- the curability was evaluated by sensory evaluation of stickiness on the surface of the obtained molded product.
- the texture was evaluated as a sensory evaluation and divided into the following ranks.
Abstract
Description
Claims
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EP04771728A EP1661690A4 (en) | 2003-08-27 | 2004-08-17 | METHOD FOR PRODUCING A THREE-DIMENSIONAL MODEL |
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JP2003310465A JP2005074904A (ja) | 2003-09-02 | 2003-09-02 | 三次元造形物の製造方法 |
JP2003-310465 | 2003-09-02 | ||
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WO2001034371A2 (en) * | 1999-11-05 | 2001-05-17 | Z Corporation | Material systems and methods of three-dimensional printing |
US20010050031A1 (en) * | 2000-04-14 | 2001-12-13 | Z Corporation | Compositions for three-dimensional printing of solid objects |
US7087109B2 (en) * | 2002-09-25 | 2006-08-08 | Z Corporation | Three dimensional printing material system and method |
EP2001656B1 (en) * | 2006-04-06 | 2014-10-15 | 3D Systems Incorporated | KiT FOR THE PRODUCTION OF THREE-DIMENSIONAL OBJECTS BY USE OF ELECTROMAGNETIC RADIATION |
EP2664442B1 (en) | 2006-12-08 | 2018-02-14 | 3D Systems Incorporated | Three dimensional printing material system |
JP5129267B2 (ja) * | 2007-01-10 | 2013-01-30 | スリーディー システムズ インコーポレーテッド | 改良された色、物品性能及び使用の容易さ、を持つ3次元印刷材料システム |
US7968626B2 (en) * | 2007-02-22 | 2011-06-28 | Z Corporation | Three dimensional printing material system and method using plasticizer-assisted sintering |
FR2913909A1 (fr) * | 2007-03-19 | 2008-09-26 | Axiatec | Methode d'impression 3d |
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US20070007698A1 (en) | 2007-01-11 |
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