WO2014157531A1 - Feuille de régulation de rayons calorifiques - Google Patents

Feuille de régulation de rayons calorifiques Download PDF

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Publication number
WO2014157531A1
WO2014157531A1 PCT/JP2014/058887 JP2014058887W WO2014157531A1 WO 2014157531 A1 WO2014157531 A1 WO 2014157531A1 JP 2014058887 W JP2014058887 W JP 2014058887W WO 2014157531 A1 WO2014157531 A1 WO 2014157531A1
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Prior art keywords
heat ray
mass
control sheet
light
heat
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PCT/JP2014/058887
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English (en)
Japanese (ja)
Inventor
健太郎 秋山
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大日本印刷株式会社
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Publication of WO2014157531A1 publication Critical patent/WO2014157531A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images

Definitions

  • the present invention relates to a heat ray control sheet having excellent visibility by suppressing generation of multiple images and capable of controlling a heat dose according to an incident angle of light.
  • the heat ray control sheet has a function of controlling the heat dose to be transmitted by absorbing light in the infrared region (hereinafter sometimes referred to as “infrared rays” or “heat rays”) among the light from the light source.
  • the functional sheet has a function of blocking heat ray intake into the room and suppressing an increase in the space temperature by being attached to a window glass or the like.
  • Patent Document 1 discloses a “stacked type” sheet.
  • FIG. 5 is a schematic cross-sectional view showing an example of a laminated type heat ray control sheet. As illustrated in FIG.
  • the stacked heat ray control sheet 50 is obtained by forming a heat ray shielding film 52 including particles (heat ray absorbing particles) 53 that absorb heat rays on a base material 51.
  • the heat ray absorbing particles 53 are first inorganic fine particles 53a such as antimony-doped tin oxide (hereinafter sometimes abbreviated as ATO), and the second inorganic fine particles 53b are hexaboride.
  • ATO antimony-doped tin oxide
  • LaB 6 lanthanum
  • such a laminated heat ray control sheet absorbs heat rays quantitatively regardless of the incident angle of light from the light source. For this reason, for example, when the heat ray control sheet is used for a window glass or the like, even in summer when it is desired to shield the heat ray to suppress the rise in the room temperature, even in the winter season when the heat ray is taken in to raise the room temperature. Since the heat dose absorbed by the control sheet is uniform, the heat dose taken into the room could not be adjusted according to the season.
  • Patent Document 2 discloses a “louver type” heat ray control sheet that selectively adjusts the heat dose by selectively transmitting or shielding heat rays according to the incident angle.
  • the louver type heat ray control sheet has a plurality of groove portions 103 formed in a straight line and in parallel in the light transmitting portion 101, and the groove portion 103 includes a heat ray absorbing portion containing heat ray absorbing particles. 102.
  • the adherend 104 such as a window glass, it is possible to selectively transmit and shield the heat ray by utilizing the change in the incident angle of light with respect to the heat ray control sheet 100. it can.
  • the temperature rise in the interior of the vehicle or the interior of the vehicle is suppressed by reducing the intake of heat rays in the summer, and the interior of the vehicle or the interior of the vehicle by sufficiently capturing the heat rays in the winter. It is possible to suppress a temperature decrease such as.
  • the XY plane is the sheet surface of the heat ray control sheet
  • the X direction is the length direction
  • the Y direction is the width direction
  • the Z direction is the thickness (groove depth) direction of the heat ray control sheet.
  • FIG. 7 is an explanatory diagram for explaining a light transmission path according to an incident angle of light in a louver type heat ray control sheet. 7 corresponds to a view of the heat ray control sheet 100 of FIG. 6 as viewed from the X direction, and is an aspect in which the heat ray control sheet 100 is attached to the adherend 104.
  • the light source L in FIG. 7 is the sun.
  • FIG. 7A when the solar altitude is high as in summer, the incident angle ( ⁇ 1 ) of sunlight increases, and sunlight from the side surface of the heat ray absorbing unit 102 increases. Incidence increases.
  • FIG. 7 shows a case where the surface having the heat ray absorbing portion among the sheet surfaces of the heat ray control sheet is on the light source side, but the same applies to the case where the sheet surface facing the surface is on the light source side.
  • louver type heat ray control sheet ATO is used as heat ray absorbing particles from the viewpoint of high light transmittance.
  • the amount of ATO used is increased in order to improve the heat ray absorption ability, the visibility of the appearance and the like seen from the adherend when the heat ray control sheet is used on an adherend such as a window glass is used.
  • the phenomenon that the color of the image is decomposed and a rainbow-like unclear image appears. Such a phenomenon is not seen in the laminated type heat ray control sheet, and is unique to the louver type.
  • an image in which colors appear to be separated in the direction of streaking is referred to as a “multiple image”.
  • the present invention has been made in view of the above circumstances, and provides a heat ray control sheet that has excellent visibility by suppressing the generation of multiple images and can control the heat dose according to the incident angle of light.
  • the main purpose is to do.
  • the present invention provides a light transmission part having a plurality of grooves on one surface, and lanthanum hexaboride and antimony doped as heat ray absorbing particles formed in the groove part of the light transmission part.
  • a heat ray control sheet characterized by being.
  • the heat-absorbing ability of the heat-absorbing part is obtained by adding lanthanum hexaboride having a high heat-absorbing ability to the predetermined amount of antimony-doped tin oxide as the heat-absorbing particles so as to have a predetermined content.
  • the content of antimony-doped tin oxide can be reduced without lowering.
  • the heat ray control sheet of the present invention can have high light transmittance without developing multiple images, and can control the heat dose according to the incident angle of light.
  • the content of the lanthanum hexaboride in the heat ray absorbing portion is preferably 0.6% by mass or less. This is because a decrease in visible light transmittance can be suppressed in the heat ray absorbing portion, and a heat ray control sheet having high transparency can be obtained.
  • the total sum of the content of the antimony-doped tin oxide and the content of the lanthanum hexaboride in the heat ray absorbing portion is preferably 4.2% by mass or more.
  • Lanthanum hexaboride is about one-sixth the amount of antimony-doped tin oxide and exhibits the same heat ray absorption ability as antimony-doped tin oxide. Therefore, the total of the content of antimony-doped tin oxide and 6 times the addition amount of lanthanum hexaboride is 4.2% by mass or more, that is, when the antimony-doped tin oxide is used alone, the desired heat ray absorption ability is obtained.
  • a heat ray absorbing portion obtained by adding a predetermined content of lanthanum hexaboride to antimony-doped tin oxide has a high heat ray absorbing ability and controls the heat dose according to the incident angle of light. It is possible to obtain a heat ray control sheet having excellent visibility in which the appearance of multiple images is suppressed.
  • FIG. 5 is a correlation diagram between the content of heat ray absorbing particles and heat ray transmittance when LaB 6 is used alone as a heat ray absorbing particle and when ATO is used alone.
  • FIG. 5 is a correlation diagram between the content of heat ray absorbing particles and heat ray transmittance when LaB 6 is used alone as a heat ray absorbing particle and when ATO is used alone.
  • FIG. 5 is a correlation diagram between the content of heat ray absorbing particles and heat ray transmittance when LaB 6 is used alone as a heat ray absorbing particle and when ATO is used alone.
  • the heat ray control sheet of this invention includes a light transmission part having a plurality of grooves on one surface, and is formed in the groove part of the light transmission part, and includes lanthanum hexaboride and antimony-doped tin oxide as heat ray absorption particles.
  • a heat ray absorbing part wherein the content of the lanthanum hexaboride in the heat ray absorbing part is 0.8% by mass or less, and the content of the antimony-doped tin oxide is 8% by mass or less. It is what.
  • FIG. 1 is a schematic perspective view showing an example of the heat ray control sheet of the present invention
  • FIG. 2 is a schematic cross-sectional view (longitudinal cross-sectional view) seen from the X direction of FIG.
  • FIG. 3 is a schematic view showing an example of the heat ray absorbing portion in the present invention.
  • the XY plane is the sheet surface of the heat ray control sheet
  • the X direction is the length direction of each part
  • the Y direction is the width direction of each part
  • the Z direction is the thickness of the heat ray control sheet (the depth of the groove).
  • A) direction As illustrated in FIGS.
  • the heat ray control sheet 10 of the present invention includes a light transmission part 1 having a plurality of groove parts 3 on one surface, and a heat ray absorption part 2 formed in the groove part 3. It has. Moreover, as illustrated in FIG. 3, the heat ray absorbing portion 2 in the present invention has a predetermined content of lanthanum hexaboride (LaB 6 ) 21 and antimony-doped tin oxide (ATO) 22 as the heat ray absorbing particles 11. It is contained in.
  • LaB 6 lanthanum hexaboride
  • ATO antimony-doped tin oxide
  • ATO is generally used as heat ray absorbing particles from the viewpoint of heat ray absorption ability and good light transmittance.
  • the heat ray control sheet In order for the heat ray control sheet to have high heat ray absorption ability, it is necessary to increase the content of ATO in the heat ray absorption part.
  • the louver type heat ray control sheet is used on an adherend such as a window glass, so that the appearance and the like are visible. There is a problem that decreases.
  • the refractive index difference increases at the interface between the heat ray absorbing portion including ATO and the light transmitting portion not including ATO. Therefore, when the light is transmitted, the visible light reflected at the interface repeatedly undergoes multiple reflections in the heat ray control sheet, and as a result, the reflected light and incident light cause interference phenomenon, resulting in multiple images. It is assumed.
  • LaB 6 having higher heat ray absorbing ability than ATO is added, and the heat ray control has a heat ray absorbing part in which each content is within a predetermined range.
  • LaB 6 exhibits a heat-absorbing ability equivalent to that of ATO at a use amount of about one-sixth of ATO as will be described later. From this, by adding LaB 6 , the content of ATO can be reduced to an amount that does not cause multiple images, that is, 8% by mass or less, without reducing the heat ray absorbing ability of the heat ray absorbing portion. it can.
  • the heat ray control sheet of the present invention maintains high heat ray absorption ability by adding LaB 6 , even if the incident angle of light is large and the amount of light incident on the heat ray absorbing part is large, Can be sufficiently absorbed.
  • LaB 6 exhibits a green color and has a defect that the light transmittance is lower than that of ATO. For this reason, if the amount of LaB 6 added is excessively increased, the heat ray absorption ability is improved, but the heat ray control sheet may be colored by the green color exhibited by LaB 6 and the light transmittance may be impaired. Therefore, in the present invention, by setting the content of LaB 6 to 0.8% by mass or less, a heat ray control sheet having light transmittance equivalent to that when ATO is used alone as heat ray absorbing particles is used. It was possible.
  • the heat ray control sheet of the present invention has excellent visibility by suppressing the generation of multiple images by defining the heat ray absorbing particles contained in the heat ray absorbing portion, and the light incident angle. Accordingly, it becomes possible to control the heat dose taken into the room or the like.
  • “High heat ray absorption ability” means that the heat dose absorbed in the heat ray absorption part is large. That is, it means that the heat ray transmittance in the heat ray absorbing part is low and the heat dose taken into the room or the like is small. Further, “low heat ray absorption ability” means that the heat dose absorbed in the heat ray absorbing portion is small. That is, it means that the heat ray transmittance in the heat ray absorbing part is high and the heat dose taken into the room or the like is large.
  • the present invention includes at least a light transmission part having a groove part and a heat ray absorption part.
  • a light transmission part having a groove part and a heat ray absorption part.
  • the heat ray control sheet of the present invention will be described for each part.
  • the heat ray absorbing portion in the present invention is formed in the groove portion of the light transmitting portion and contains lanthanum hexaboride and antimony-doped tin oxide as heat ray absorbing particles, and the hexaboride in the heat ray absorbing portion.
  • the content of lanthanum is 0.8% by mass or less
  • the content of the antimony-doped tin oxide is 8% by mass or less.
  • Heat-absorbing particles The content of ATO in the heat-absorbing part can absorb a desired heat dose in the heat-absorbing part by adding a predetermined amount of LaB 6 described later, and the heat-ray control of the present invention
  • the amount in which the sheet does not exhibit multiple images and has a desired visible light transmittance that is, 8% by mass or less, preferably 4% by mass or less, with respect to 100% by mass of the total mass of the heat ray absorbing portion.
  • the heat ray control sheet of the present invention can have a desired light transmittance, and the aggregation of ATO particles, the heat ray absorption part and the light transmission part Since multiple reflection at the interface is less likely to occur, it is possible to suppress the appearance of multiple images on the sheet.
  • content of ATO it is preferable that it is 1 mass% or more, and it is preferable that it is 2 mass% or more especially. If the content of ATO is small, even if LaB 6 is added, the amount of absorption of heat rays corresponding to the decrease in the content of ATO cannot be compensated, and the incident angle of light is particularly large and is incident on the heat ray absorption part. When there is a large amount of light, there is a possibility that heat rays cannot be absorbed sufficiently.
  • the content of LaB 6 in the heat ray absorbing portion is an amount that can make the heat ray absorption amount in the heat ray absorbing portion as desired without lowering the visible light transmittance of the heat ray controlling sheet of the present invention, that is, It is 0.8 mass% or less with respect to 100 mass% of total mass of a heat ray absorption part, and it is preferable that it is 0.6 mass% or less especially.
  • the color of the LaB 6 added heat-absorbing portion and it is possible to prevent the entire hot wire control sheet is colored, it is possible to have a high light transmittance.
  • the content of LaB 6 it is preferred preferably at least 0.01 wt%, it is inter alia 0.05 mass% or more.
  • LaB 6 can exhibit a heat ray absorptivity about 6 times that of ATO. Therefore, in the present invention, the sum of the content of ATO and 6 times the content of LaB 6 is preferably 4.2% by mass or more, and more preferably 4.3% by mass or more. . Hereinafter, this reason will be described in more detail.
  • FIG. 4 is a correlation diagram between the content of heat ray absorbing particles and heat ray transmittance when LaB 6 is used alone as the heat ray absorbing particles and when ATO is used alone.
  • FIG. 4 is based on the following verification results.
  • ATO dispersion ATO content 20% by mass two types of ATO sample liquids were prepared in a similar manner so that the ATO content was 5% by mass and 10% by mass. Prepared.
  • an infrared visible ultraviolet spectrophotometer (UV3100PC, manufactured by Shimadzu Corporation) was used to measure the transmittance in the wavelength range of 800 nm to 2500 nm when the incident angle of light was 0 °. The average value was calculated. The average value of the transmittance was regarded as the heat ray transmittance, and the value of the heat ray transmittance (Y axis) against the content of the heat ray absorbing particles (X axis) was plotted. Also, the heat-ray transmittance of the LaB 6, 2 times the content of LaB 6, 4 times, 6 times, was plotted in the same manner in terms of 8 times. Table 1 shows values of heat ray transmittances in the case of LaB 6 alone (1 time amount) and ATO alone.
  • the heat ray transmittance when the light incident angle ⁇ is 60 ° becomes less than 35%. It is possible to have a high heat ray absorbing ability.
  • the heat-absorbing particles are usually transparent and are preferably nanoparticles.
  • the average particle diameter (D 50 ) is, for example, preferably in the range of 10 nm to 200 nm, more preferably in the range of 20 nm to 150 nm, and particularly preferably in the range of 30 nm to 100 nm. . Further, if the average particle diameter is above the range of the ray absorbing particles, each having an average particle size of LaB 6 and ATO may be equal, or may be one greater than the other. When the average particle diameter of the heat ray absorbing particles is larger than the above range, haze is generated, and the transparency of the heat ray control sheet of the present invention may be lowered.
  • the average particle size is a value obtained by measuring the particle size distribution by the dynamic light scattering method.
  • the average particle diameter can also be obtained by observing the particles of the heat-absorbing particles with an electron microscope and arithmetically averaging.
  • the preferred average particle diameter range at this time is the same as the above-mentioned range.
  • the heat ray absorption part in this invention has binder resin at least other than the heat ray absorption particle mentioned above.
  • the binder resin in the heat ray absorbing part is not particularly limited as long as it is a material that can be cured by irradiation with ionizing radiation.
  • the ionizing radiation may be classified by the quantum energy of the electromagnetic wave, but in the present invention, all ultraviolet rays (UV-A, UV-B, UV-C), visible rays, ⁇ rays, X rays, electron rays are used. Means active energy rays.
  • the binder resin material is preferably an ionizing radiation curable resin polymerized mainly with a monomer, oligomer, prepolymer or polymer having a radical polymerizable active group in the structure, and the ionizing radiation curable resin.
  • the resin include an ultraviolet curable resin, an electron beam curable resin, a visible light curable resin, and a near infrared curable resin. In the present invention, it is particularly preferable to use an ultraviolet curable resin and an electron beam curable resin.
  • reactive oligomers such as epoxy acrylate, urethane acrylate, polyether acrylate, polyester acrylate, polythiol, vinyl pyrrolidone, 2-ethylhexyl acrylate, ⁇ -hydroxy acrylate, tetrahydrofurfuryl acrylate, etc.
  • Reactive monomers such as 2-hydroxy-3-acryloyloxypropyl methacrylate, polyethylene glycol diacrylate, tetraethylene glycol diacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, etc. Etc.
  • the binder resin preferably contains a photoinitiator. This is because the binder resin can be cured by irradiation with ionizing radiation such as ultraviolet rays having a wavelength of 300 nm to 400 nm.
  • the photoinitiator can be appropriately selected according to the type of ionizing radiation to be irradiated.
  • An acylphosphine oxide photoinitiator such as Irgacure 907, specifically, Lucirin TPO, Irgacure 819, or the like can be used.
  • the content of the photoinitiator can be appropriately adjusted according to the amount of the binder resin. For example, the content of the photoinitiator is within a range of about 0.1 to 5 parts by mass with respect to 100 parts by mass of the binder resin. It is preferable that
  • the binder resin in the heat ray absorbing portion preferably has a small refractive index with respect to visible light. This is because ATO and LaB 6 have a large refractive index of light in the visible light region, so that the refractive index of the entire heat-absorbing portion can be adjusted by reducing the refractive index of the binder resin.
  • the binder resin content in the heat ray absorbing part is preferably in the range of 40% by mass to 98% by mass with respect to the total mass (100% by mass) of the heat ray absorbing part. It is preferably within the range of 95% by mass.
  • the content of the binder resin is larger than the above range, the concentration of the heat ray absorbing particles may become thin and the heat ray may not be sufficiently absorbed.
  • the content is smaller than the above range, the adhesiveness to the light transmitting part is poor. There is.
  • the heat ray absorbing portion can have a photoinitiator, an ultraviolet absorber, a light stabilizer, a polymerization inhibitor, an antifoaming agent, and the like.
  • the heat ray absorbing portion preferably has a desired refractive index with respect to visible light, and is preferably close to the refractive index with respect to visible light in the light transmitting portion.
  • the refractive index of the heat ray absorbing portion is preferably in the range of 1.40 to 1.80, more preferably in the range of 1.45 to 1.70, particularly 1.50 to 1.70. It is preferable to be within the range of 1.65.
  • the refractive index with respect to visible light of the heat ray absorbing portion is within the above range, the difference in refractive index with the light transmitting portion is reduced, and a heat ray control sheet with high visibility in which the appearance of multiple images is suppressed can be obtained. .
  • the measuring method of the refractive index of a heat ray absorption part it can obtain by the measuring method of the refractive index prescribed
  • the heat ray absorbing portion in the present invention is formed by filling the material of the heat ray absorbing portion described above in the groove portion in the light transmitting portion, the heat ray absorbing portion is usually the same shape as the shape of the groove portion.
  • the longitudinal cross-sectional shape of the heat ray absorbing portion include a triangle, a square, a rectangle, a trapezoid, and a shape having four curved sides.
  • angular part of the said heat ray absorption part may have a curved surface, and the side surface of the said heat ray absorption part may be a curve instead of a straight line.
  • the shape of the heat ray absorbing portion viewed from the sheet surface is not particularly limited, and may be, for example, a straight shape or a curved shape.
  • seat of this invention is not specifically limited, You may arrange
  • seat of this invention what is arrange
  • the height of the heat ray absorbing portion can be appropriately set depending on the desired size of the heat ray control sheet, and is preferably in the range of 10 ⁇ m to 300 ⁇ m, for example, and in particular in the range of 25 ⁇ m to 250 ⁇ m. In particular, it is preferably in the range of 50 ⁇ m to 200 ⁇ m.
  • the height of the heat ray absorbing portion described above is preferably in the range of 50% to 100% with respect to the thickness of the light transmitting portion described later, and in particular, in the range of 60% to 95%. In particular, it is preferable to be within the range of 70% to 90%. This is because if the height of the heat ray absorbing portion is smaller than the above range with respect to the thickness of the light transmitting portion, the thickness of the heat ray control sheet is relatively increased and the flexibility may be lowered.
  • the height of the heat ray absorbing portion is a portion indicated by T1 in FIG.
  • the width of the heat ray absorbing portion is preferably in the range of 5 ⁇ m to 50 ⁇ m, more preferably in the range of 7 ⁇ m to 45 ⁇ m, and particularly preferably in the range of 10 ⁇ m to 40 ⁇ m. If the width of the heat ray absorbing part is larger than the above range, it may be difficult to transmit visible light as the whole heat ray absorbing part and the heat ray control sheet. On the other hand, if the width is smaller than the above range, the height of the heat ray absorbing part may be as described above. In some cases, the heat ray absorbing portion cannot absorb a sufficient heat dose, and the desired heat ray absorbing ability cannot be exhibited.
  • variety of a heat ray absorption part is a part shown by W in FIG.
  • the length of the heat ray absorbing portion is appropriately selected according to the desired size of the heat ray control sheet.
  • the length of the said heat ray absorption part means the length extended in the X direction in FIG.
  • the pitch width of the heat ray absorbing portion is preferably in the range of 30 ⁇ m to 200 ⁇ m, more preferably in the range of 40 ⁇ m to 150 ⁇ m, and particularly preferably in the range of 50 ⁇ m to 110 ⁇ m.
  • the pitch width of the heat ray absorbing part is larger than the above range, light having a large incident angle is difficult to enter the heat ray absorbing part, and the heat ray may not be sufficiently absorbed.
  • the pitch width of the said heat ray absorption part is a part shown by P in FIG.
  • the heat ray absorbing portion forming composition containing the above-described heat ray absorbing portion material can be filled in the groove portion of the light transmitting portion and cured.
  • the viscosity of the composition for forming a heat ray absorbing portion may be any viscosity that can be used in a coating method described later. Specifically, the viscosity is preferably in the range of about 100 Cps to 20000 Cps, more preferably in the range of about 250 to 10000 Cps, and particularly preferably in the range of about 500 to 5000 Cps. If the viscosity of the composition for forming a heat ray absorbing part is higher than the above range, the coating method described later may not be used. Moreover, when lower than the said range, the shape after apply
  • the method for applying the composition for forming a heat ray absorbing portion is not particularly limited as long as it is a method capable of sufficiently filling at least the groove portion with the composition for forming a heat ray absorbing portion.
  • a wiping method, a coating method, a dry laminating method, an extrusion laminating method, or the like can be used.
  • the coating method is preferable from the viewpoint of productivity, the precision of the coated film, and the like.
  • applicator coating, Miya bar coating, wire bar coating, gravure coating, die coating and the like can be used.
  • composition for forming a heat ray absorbing part when applied, an excessive amount of the composition for forming a heat ray absorbing part flowing out from the groove part to the surface of the light transmitting part may be removed by scraping with a squeegee or the like. Good.
  • the curing method of the composition for forming a heat ray absorbing portion curing by irradiation with ionizing radiation is preferable.
  • the type of ionizing radiation is the same as the content described in the above-mentioned section “(2) Other materials”, and thus the description thereof is omitted here.
  • the hardening conditions etc. of the composition for heat ray absorption part formation it can set suitably according to the kind of composition for heat ray absorption part formation, and the kind of ionizing radiation to be used.
  • Light transmitting portion The light transmitting portion in the present invention has a plurality of grooves on one surface. In the light transmission part, both visible light and heat rays are transmitted.
  • the material used for the light transmission part is preferably a material that is cured by irradiation with ionizing radiation, that is, an ionizing radiation curable resin.
  • the ionizing radiation is the same as that described in the section “1.
  • the ionizing radiation curable resin include an ultraviolet curable resin, an electron beam curable resin, a visible light curable resin, a near infrared curable resin, and the like. Among them, an ultraviolet curable resin and an electron beam curable resin are used. It is preferable.
  • the ultraviolet curable resin and the electron beam curable resin can be appropriately selected from conventionally used polymerizable oligomers or prepolymers.
  • examples thereof include polymerizable oligomers or prepolymers, and particularly polyfunctional polymerizable oligomers or prepolymers.
  • the polymerizable oligomer or prepolymer include oligomers and prepolymers having a radically polymerizable unsaturated group in the molecule, such as epoxy (meth) acrylate, urethane (meth) acrylate, and polyether urethane (meth) acrylate.
  • Examples include caprolactone-based urethane (meth) acrylate, polyester (meth) acrylate-based, polyether (meth) acrylate-based oligomers and prepolymers, and these may be used alone or in combination of two or more.
  • (meth) acrylate means “acrylate or methacrylate”.
  • polyfunctional urethane (meth) acrylate when used for the light transmission part, for the purpose of adjusting its viscosity, it is not suitable for monofunctional (meth) acrylate such as methyl (meth) acrylate.
  • a diluent can be used in combination.
  • the monofunctional (meth) acrylate may be used alone or in combination of two or more, or a low molecular weight polyfunctional (meth) acrylate may be used in combination.
  • paintability can also be ensured using said monomer.
  • an ultraviolet curable resin when used as the material for the light transmission part, it is preferable to use a photopolymerization initiator in combination.
  • a photopolymerization initiator As the type of the photopolymerization initiator, those conventionally used can be used.
  • the content of the photopolymerization initiator in the light transmission part is preferably in the range of about 0.1 parts by mass to 5 parts by mass with respect to 100 parts by mass of the ultraviolet curable resin.
  • the light transmission part may contain a weather resistance improver such as an ultraviolet absorber (UVA) in order to further improve the weather resistance.
  • the ultraviolet absorber may be inorganic or organic. Examples of inorganic ultraviolet absorbers include titanium oxide, cerium oxide, and zinc oxide.
  • the average particle size (D 50 ) of the inorganic ultraviolet absorber is preferably in the range of about 5 nm to 120 nm.
  • group, etc. can be used, for example, A triazine type is preferable. This is because the ultraviolet ray absorbing ability is high, and it is difficult to deteriorate against high energy such as ultraviolet rays.
  • the light transmission part includes hard coat properties, light stabilizers, scratch-resistant fillers, polymerization inhibitors, crosslinking agents, antistatic agents, adhesion improvers, antioxidants, leveling agents, thixotropic agents. Further, additives such as a coupling agent, a plasticizer, an antifoaming agent and a filler may be contained.
  • the light transmission part has a plurality of grooves on one surface. Since the heat ray absorbing portion described above is formed in the groove portion, the shape of the groove portion and the shape of the heat ray absorbing portion are the same. The shape, size, and the like of the groove are the same as those described in the section “1. Heat-absorbing part” described above, and thus the description thereof is omitted here.
  • the thickness of the light transmission part is appropriately selected according to the thickness of the target heat ray control sheet and the shape of the groove part, etc., but is preferably in the range of 10 ⁇ m to 300 ⁇ m, and more preferably 25 ⁇ m to It is preferably in the range of 250 ⁇ m, particularly preferably in the range of 50 ⁇ m to 200 ⁇ m.
  • the thickness of the light transmission part is larger than the above range, light loss due to absorption of light incident on the light transmission part occurs, and the visibility of the heat ray control sheet of the present invention is reduced or The thickness of the heat ray control sheet may increase and the flexibility may decrease.
  • it is smaller than the above range it may be difficult to form a groove having a desired shape.
  • the thickness of the light transmission part is a part indicated by T2 in FIG.
  • the visible light transmittance of the light transmission part is preferably 70% or more, more preferably 80% or more, and particularly preferably 90% or more. Generation of light loss due to absorption of light incident on the light transmission portion can be suppressed, and the visibility of the heat ray control sheet can be increased. On the other hand, if the visible light transmittance is lower than the above range, the visible light transmittance of the entire heat ray control sheet of the present invention is also lowered. May not be ensured, and the illuminance in the room may be insufficient.
  • a spectrophotometer (“UV-2450” manufactured by Shimadzu Corporation, JIS K 0115 compliant product) was used, and a Toyobo PET film (product number: Cosmo). This is confirmed by measuring a 10 ⁇ m-thick light transmission part formed on Shine A4300 (thickness 100 ⁇ m) within a measurement wavelength range of 380 nm to 780 nm.
  • the refractive index of the light transmitting part is appropriately adjusted according to the refractive index of the heat ray absorbing part, but is preferably in the range of 1.40 to 1.80, for example 1.45. Is preferably in the range of ⁇ 1.70, and particularly preferably in the range of 1.50 to 1.65.
  • a method for forming the light transmitting portion is not particularly limited as long as the thickness of the light transmitting portion is within a desired range and a plurality of groove portions can be formed.
  • the light transmitting portion-forming composition comprising the light transmitting portion material described above is applied to the shaping plate having the convex portions, the coating film is cross-linked and cured, and the shaping plate is peeled to release the light.
  • a transmission part can be formed.
  • the composition for forming a light transmission part may be applied onto the base material to form a coating film, and then the shaping plate may be pressed and cured by crosslinking.
  • the plate may be disposed so as to face each other, and the composition for forming a light transmission part may be injected therebetween to be crosslinked and cured. Furthermore, as another method, a layer separately formed using the composition for forming a light transmission part may be stacked on a shaping plate or may be bonded.
  • the shaped plate has a plurality of convex portions on the surface, and the shape and size of the convex portions are usually the same as the shape of the groove portions. Further, the shape of the shaping plate is not particularly limited, and examples thereof include a plate shape and a roll shape.
  • the viscosity of the composition for forming a light transmission part is not particularly limited as long as it has a viscosity that can be used in a coating method described later, and is preferably in the range of, for example, about 500 Cps to 5000 Cps.
  • the said composition for light transmissive part formation does not contain a solvent normally, in order to acquire applicability
  • the method for applying the composition for forming a light transmission part is not particularly limited as long as it can be applied so as to have a uniform film thickness.
  • a coating method for example, a spin coating method, a die coating method, a dip coating method, a bar coating method, a gravure printing method, a screen printing method, or the like can be used.
  • composition for forming a light transmission part curing by irradiation with ionizing radiation as described above is preferable, and ultraviolet rays or electron beams are preferably used from the viewpoint of practicality. Moreover, about hardening conditions etc., it can set suitably according to the kind of composition for light transmissive part formation.
  • the heat ray control sheet of the present invention has at least the light transmission part and the heat ray absorption part described above, but other parts as long as the visibility and heat ray absorption ability of the heat ray control sheet are not deteriorated. You may have.
  • part assumed in this invention is demonstrated.
  • seat of this invention may have the base material which can hold
  • the substrate is not particularly limited as long as it has high light transmittance and does not adversely affect the visibility of the heat ray control sheet.
  • a sheet-like or film-like one made of a transparent resin can be used, and among them, a film-like substrate (hereinafter sometimes referred to as a film substrate) is preferably used. It is done.
  • the film substrate may be any material as long as it has transparency to light in the visible light region and has strength to support the light transmission part and the heat ray absorption part.
  • polyethylene terephthalate, polycarbonate, polyester, polyurethane Resin films such as polyvinyl alcohol, polycarbonate, vinyl chloride, fluororesin, and rubber can be used.
  • polyethylene terephthalate and polycarbonate resin films are preferred in terms of transparency and strength.
  • the said film base material may contain antioxidant, a ultraviolet absorber, etc.
  • the said base material may perform the surface treatment etc. on the single side
  • surface treatment by an oxidation method such as corona discharge treatment, chromic acid treatment (wet), flame treatment, hot air treatment, ozone ultraviolet irradiation treatment, and surface treatment by an uneven method such as a sand blast method or a solvent treatment method. Chemical surface treatment or the like can be used.
  • the thickness of the substrate can be appropriately selected depending on the purpose of use, but it is usually preferably in the range of 5 ⁇ m to 200 ⁇ m, and more preferably in the range of 10 ⁇ m to 150 ⁇ m. If it is too thin, curls and wrinkles are likely to occur, and the heat ray control sheet of the present invention may not have the desired strength.
  • the visible light transmittance of the substrate is preferably 70% or more, more preferably 80% or more, and particularly preferably 90% or more. If the visible light transmittance of the substrate is lower than the above range, the visible light transmittance of the entire heat ray control sheet of the present invention is also lowered. There may be cases where lighting cannot be secured and the illuminance in the room is insufficient.
  • the heat ray control sheet of the present invention may have an adhesive layer in order to adhere to an adherend such as a window glass.
  • an adhesive layer in order to adhere to an adherend such as a window glass.
  • any material having weather resistance may be used.
  • acrylic, urethane, silicon, rubber, or the like can be used.
  • an acrylic pressure-sensitive adhesive mainly composed of a polymer or copolymer of an acrylic monomer such as acrylic acid ester or methacrylic acid ester as a material having light resistance, and in particular, n-butyl acrylate. 2-ethylhexyl acrylate or the like is preferably used.
  • the said adhesion layer contains the ultraviolet absorber.
  • the ultraviolet absorber may be either inorganic or organic, and an ultraviolet absorber having a reactive group in the molecule can also be used.
  • the inorganic ultraviolet absorber titanium oxide, cerium oxide, zinc oxide or the like having an average particle diameter of about 5 to 120 nm can be preferably used.
  • an organic type ultraviolet absorber a benzotriazole type, a triazine type, a benzophenone type, a salicylate type, an acrylonitrile type etc. can be mentioned preferably, for example. Of these, triazines are preferable because they have a high ability to absorb ultraviolet rays and do not easily deteriorate even with high energy such as ultraviolet rays.
  • the content of the ultraviolet absorber in the pressure-sensitive adhesive layer is preferably in the range of 0.1 to 25 parts by weight, more preferably in the range of 1 to 25 parts by weight with respect to 100 parts by weight of the pressure-sensitive adhesive. In particular, it is preferably in the range of 3 to 20 parts by mass.
  • the adhesive layer may contain a light stabilizer and the like. This is because the weather resistance of the adhesive layer can be improved.
  • the light stabilizer is preferably a hindered amine light stabilizer or the like, and may have a reactive group in the molecule.
  • Examples of the light stabilizer include 1,2,2,6,6-pentamethyl-4-piperidinyl methacrylate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, bis (1,2 , 2,6,6-pentamethyl-4-piperidinyl) sebacate, methyl (1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, 2,4-bis [N-butyl-N- (1- And cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl) amino] -6- (2-hydroxyethylamine) -1,3,5-triazine.
  • the content of the light stabilizer in the pressure-sensitive adhesive layer is preferably in the range of 0.05 to 7 parts by weight, more preferably in the range of 0.5 to 5 parts by weight, with respect to 100 parts by weight of the pressure-sensitive adhesive. It is more preferable that the content be within the range of 1 to 5 parts by mass.
  • the position where the adhesive layer is formed can be appropriately selected according to the usage mode of the heat ray control sheet of the present invention.
  • the heat ray control sheet when used for internal application, it is preferably formed on the surface of the light transmission part including the surface of the heat ray absorption part.
  • the thickness of the adhesive layer is preferably in the range of 5 ⁇ m to 100 ⁇ m, and more preferably in the range of 10 ⁇ m to 75 ⁇ m.
  • the adhesive layer is prepared by, for example, diluting the above-mentioned adhesive layer material with a solvent such as ethyl acetate or toluene to prepare a coating solution having a solid content of 20% by mass to 60% by mass, and applying the coating solution to a release sheet or the like. It can form by sticking to the surface which has at least one of a light transmissive part or a heat ray absorption part.
  • a knife coater, a comma coater, a gravure coater, a roll coater or the like can be used as a method of applying the coating solution for the adhesive layer.
  • the coating amount of the material of the adhesive layer is in the range of 10g / m 2 ⁇ 30g / m 2 by dry weight is preferred. By setting it within the above range, sufficient adhesion to the adherend can be obtained, and no sticking layer sticks out during processing.
  • the material used for the release layer is not particularly limited as long as it is generally used. Specific examples include acrylic and methacrylic resins such as polymethyl acrylate and polymethyl methacrylate, polyvinyl chloride resins, cellulose resins, silicone resins, chlorinated rubber, casein, various surfactants, metal oxides, and the like. Or what mixed 2 or more types can be used.
  • seat of this invention has a protective layer from viewpoints, such as a weather resistance and scratch resistance.
  • the protective layer include a weather resistant layer, a hard coat layer, a weather resistant hard coat layer, and a self-cleaning layer.
  • an ionizing radiation curable resin is preferably used as a material for the protective layer.
  • the ionizing radiation curable resin can be appropriately selected from a polymerizable oligomer or prepolymer, and among them, a polyfunctional polymerizable oligomer or prepolymer is preferably used.
  • the polymerizable oligomer or prepolymer include oligomers and prepolymers having radically polymerizable unsaturated groups in the molecule, such as epoxy (meth) acrylate, urethane (meth) acrylate, and polyether urethane (meth) acrylate.
  • caprolactone-based urethane (meth) acrylate polyester (meth) acrylate-based, polyether (meth) acrylate-based oligomers and prepolymers, etc., in particular, polyfunctional urethane (meth) acrylate-based It is preferable in terms of achieving both hard coat properties, and a molecular weight of about 1000 to 5000 is preferable.
  • (meth) acrylate refers to acrylate or methacrylate.
  • the ionizing radiation curable resin includes a caprolactone urethane (meth) acrylate obtained by a reaction of a caprolactone polyol, an organic isocyanate and a hydroxy acrylate, and a polybutadiene oligomer side.
  • a polymer urethane (meth) acrylate such as a highly hydrophobic polybutadiene (meth) acrylate having a (meth) acrylate group in the chain can be used in combination. It is because the weather resistance of a protective layer can be improved by using together. Among these, it is preferable to use a caprolactone-based material in combination.
  • a diluent such as monofunctional (meth) acrylate such as methyl (meth) acrylate is used for the purpose of adjusting the viscosity.
  • the monofunctional (meth) acrylate may be used alone or in combination of two or more, or a low molecular weight polyfunctional (meth) acrylate may be used in combination.
  • applicability paintability can also be ensured using said monomer.
  • the material for the protective layer can contain an ultraviolet absorber, a light stabilizer, a flaw resistant filler such as silica particles, a silicate compound, and the like.
  • an ultraviolet absorber such as silica particles, a silicate compound, and the like.
  • a light stabilizer such as silica particles, a silicate compound, and the like.
  • a flaw resistant filler such as silica particles, a silicate compound, and the like.
  • the specific ultraviolet absorber and light stabilizer the same kind as what was mentioned above can be used.
  • the thickness of the protective layer is preferably within a range of 0.1 ⁇ m to 20 ⁇ m, more preferably within a range of 0.5 ⁇ m to 10 ⁇ m, and particularly preferably within a range of 1 ⁇ m to 8 ⁇ m. It is because it can protect, without reducing the visibility of the heat ray
  • a coating solution obtained by diluting the above-described protective layer material with a desired solvent may be prepared, and the coating solution may be applied to the surface of the heat ray control sheet.
  • a method for applying the coating solution for the protective layer for example, an applicator coat, a beer bar coat, a wire bar coat, a gravure coater, a die coater, or the like can be used.
  • the position where the protective layer is disposed is appropriately selected according to the application mode of the heat ray control sheet of the present invention, and when the heat ray control sheet of the present invention is attached to the adherend, usually, It arrange
  • the heat ray control sheet of the present invention may have, for example, a flattening layer, a scattering layer, and the like on the surfaces of the heat ray absorption part and the light transmission part in addition to the above-described parts. This is because it is possible to suppress the occurrence of the light diffraction phenomenon and the light interference phenomenon in the heat ray control sheet, and to prevent the visibility from being lowered due to the appearance of multiple images. Moreover, you may have a photocatalyst layer for the purpose of control of an air chamber.
  • the planarizing layer preferably has the same optical characteristics as the light transmission part.
  • Heat ray control sheet The heat ray control sheet of the present invention preferably has a small difference in refractive index of light in the visible light region at the interface between the heat ray absorbing portion and the light transmitting portion.
  • the refractive index difference between the heat ray absorbing portion and the light transmitting portion in the present invention is preferably in the range of 0.001 to 0.050, and more preferably in the range of 0.001 to 0.030.
  • the refractive index of visible light of a heat ray control sheet is confirmed by measuring by the method similar to the method demonstrated by the term of "1. heat ray absorption part (3) heat ray absorption part" mentioned above.
  • the heat ray control sheet of the present invention is not particularly limited as long as it has light transmittance and excellent visibility, but for example, the total light transmittance is preferably 70% or more.
  • the total light transmittance is a value measured using a fully automatic direct reading haze computer (HGM-2DP) manufactured by Suga Test Instruments Co., Ltd.
  • the visible light transmittance of the heat ray control sheet of the present invention is preferably high regardless of the incident angle of light, but usually the appearance is observed from an adherend such as a window glass on which the heat ray control sheet is stuck.
  • the visible light transmittance when the light incident angle is 0 ° is preferably in a desired range.
  • the visible light transmittance when the incident angle of light is 0 ° is preferably 65% or more, more preferably 70% or more, and particularly preferably 75% or more.
  • the heat ray transmittance of the heat ray control sheet of the present invention is preferably set as appropriate according to the incident angle of light. That is, it is preferable to have a heat ray transmittance according to the season. For example, in the summer, the heat ray control sheet is required to exhibit a high heat ray absorbing ability from the viewpoint of preventing an increase in indoor temperature due to heat rays taken into the room from the window glass. That is, it is preferable that the heat ray transmittance of the heat ray control sheet is low. Specifically, the heat ray transmittance when the light incident angle is 60 ° is preferably 50% or less, more preferably 40% or less, and particularly preferably less than 35%.
  • the heat ray control sheet exhibits a low heat ray absorbing ability because it is possible to increase the room temperature by taking in a lot of heat rays from the window glass into the room. . That is, it is preferable that the heat ray transmittance of the heat ray control sheet is high.
  • the heat ray transmittance when the incident angle of light is 0 ° is preferably 35% or more, more preferably 40% or more, and particularly preferably 50% or more.
  • the visible light transmittance of the heat ray control sheet was measured by using a infrared visible ultraviolet spectrophotometer (UV3100PC, manufactured by Shimadzu Corporation) and measuring the spectral transmittance in a wavelength range of 380 nm to 780 nm according to JIS A5759-2008. , Calculated by the calculation formula stipulated in the same standard.
  • the heat ray transmittance is an average value of transmittance in a wavelength range of 800 nm to 2500 nm when measured by a method according to the same standard.
  • the diffraction efficiency of the heat ray control sheet of the present invention is preferably small. If the diffraction efficiency is large, the light diffracted in the heat ray control sheet increases, so that the diffracted light interferes with each other, resulting in a difference in light intensity for each wavelength, resulting in an increase in the appearance of multiple images. It is. Specifically, the diffraction efficiency of the heat ray control sheet is preferably 35% or less, and more preferably 30% or less. In the present invention, the diffraction efficiency means that when only a 0th-order light of the diffracted light is passed through a 1 cm square slit located 50 cm away from the heat ray control sheet using a laser having a wavelength of 633 nm. The value calculated by the equation (1) from the intensity I 1 (mW) of the laser light immediately after passing through the heat ray control sheet and the intensity I 2 (mW) of the 0th-order light after passing through the slit.
  • the heat ray control sheet of the present invention preferably has a low haze value, for example, preferably 20% or less, more preferably 10% or less, and particularly preferably 5% or less.
  • a low haze value for example, preferably 20% or less, more preferably 10% or less, and particularly preferably 5% or less.
  • the haze value is higher than the above range, the transparency of the heat ray control sheet becomes low, and the visibility may be lowered when the heat ray control sheet is attached to an adherend such as a window glass.
  • the said haze value is confirmed by measuring according to JISK7136.
  • the heat ray control sheet of the present invention can also be used as “for internal application” to be applied to the inside of the adherend, that is, the indoor side, and can also be applied to the outside of the adherend, that is, the outdoor side. It can also be used as an “outside paste”.
  • the heat ray control sheet is attached to the adherend so that the sheet surface including the surface of the heat ray absorbing portion becomes the light incident surface in any of the usage modes of “inner bonding” or “outer bonding”.
  • the surface facing the sheet surface including the surface of the heat ray absorbing portion may be attached to the adherend so as to be the light incident surface.
  • Manufacturing method As a manufacturing method of the heat ray control sheet of the present invention, as long as it is a method capable of forming an aspect having a light transmission part having a plurality of grooves on one surface and a heat ray absorption part formed in the groove, It is not particularly limited.
  • a composition for forming a light transmission part is applied to a shaping plate having a convex part that is an inverted shape of a groove part, and cured by irradiation with ionizing radiation or the like to form a light transmission part having a groove part.
  • the heat ray control sheet of the present invention can adjust the amount of absorption of heat rays while securing lighting according to the incident angle of light from the light source, and can control the rise and fall of the indoor temperature. Therefore, for example, it can be used by being attached to a window such as a building, a house, a train, a car, a bus, a window glass, an opening, or the like of an airplane or a ship.
  • the present invention is not limited to the above embodiment.
  • the above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.
  • Example 1 (Preparation of mold) A plurality of convex portions that are linear in the circumferential direction along the surface direction, the main cutting surface is a rectangle having a height of 150 ⁇ m, and a width of 25 ⁇ m on the plate surface side are arranged in parallel with each other at a pitch width of 105 ⁇ m. A roll mold was prepared.
  • a PET film (product name: A4100 manufactured by Toyobo Co., Ltd.) having a thickness of 100 ⁇ m was used as a base material, and a light transmission part forming composition having the following composition was applied to one surface of the base material.
  • Ultraviolet rays from an ultraviolet irradiation device (Fusion UV System Japan Co., Ltd., light source D bulb) are used as a base material, with the applied composition for forming a light transmission part sandwiched between the mold and the base material. By irradiating from the side, the composition for forming a light transmission part was crosslinked. After that, by releasing the mold, a light transmission part having a groove part on the surface of which a plurality of linearly connected grooves in one direction along the surface direction was formed on one side of the substrate. In addition, the shape of the groove portion was an inverted shape of the convex portion of the mold described above.
  • LaB 6 dispersion resin Preparation of LaB 6 dispersion resin 4 g of KHDS-06 (powder containing 21.5% by mass of LaB 6; manufactured by Sumitomo Metal Mining Co., Ltd.) and 39 g of 2-hydroxy-3-acryloyloxypropyl methacrylate (product name: 701A manufactured by Shin-Nakamura Chemical Co., Ltd.) Then, 86 g of zirconia beads (2 mm ⁇ ) was placed in a glass bottle and dispersed in a paint shaker for 4 hours to obtain a LaB 6 dispersion resin (LaB 6 concentration 2%) having an average particle diameter (D 50 ) of 88 nm.
  • KHDS-06 powder containing 21.5% by mass of LaB 6; manufactured by Sumitomo Metal Mining Co., Ltd.
  • 2-hydroxy-3-acryloyloxypropyl methacrylate product name: 701A manufactured by Shin-Nakamura Chemical Co., Ltd.
  • the average particle size of the LaB 6 dispersed resin is a value obtained by measuring the particle size distribution by a dynamic light scattering method using Microtrac UPA (manufactured by Nikkiso Co., Ltd.). At this time, the background was methyl ethyl ketone and diluted with methyl ethyl ketone for measurement. In addition, it is the value measured by the same method also about the average particle diameter of the ATO particle
  • composition A for forming a heat-absorbing part (Preparation of composition A for forming a heat-absorbing part) Next, using a LaB 6 dispersed resin described above to adjust the heat-absorbing portion forming composition A having the following composition.
  • LaB 6 dispersion resin 30 parts by mass ATO ink (ATO particles (average particle size 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80% by mass) 40 mass parts 2-hydroxy- 3-acryloyloxypropyl methacrylate (product name: 701A, Shin-Nakamura Chemical Co., Ltd.) 27.7 parts by mass, 1-hydroxy-cyclohexyl-phenyl-ketone (product name: Irgacure184, manufactured by BASF) 2.3 parts by mass
  • the composition A for forming a heat ray absorbing part is applied to the surface having the groove part of the light transmitting part, the coating film is squeezed with an iron doctor blade, and only the composition for forming the heat ray absorbing part applied to the region other than the groove part is scraped off.
  • the heat ray absorbing part forming composition was filled only in the groove part.
  • an ultraviolet irradiation device light source D bulb manufactured by Fusion UV System Japan Co., Ltd.
  • the composition for forming a heat ray absorbing portion in the groove portion was crosslinked and cured to form a heat ray absorbing portion.
  • the shape of the said heat ray absorption part was the same as that of the groove
  • Example 2 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition B for forming a heat ray absorbing part having the following composition was used.
  • Example 3 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition C for forming a heat ray absorbing part having the following composition was used.
  • LaB 6 dispersion resin 40 parts by mass ATO ink (ATO particles (average particle size: 52 nm) 10% by mass, UV curable resin composition (containing photopolymerization initiator) 90% by mass): 40 parts by mass 2-hydroxy- 3-acryloyloxypropyl methacrylate (product name: 701A, Shin-Nakamura Chemical Co., Ltd.) 17.7 parts by mass, 1-hydroxy-cyclohexyl-phenyl-ketone (product name: Irgacure184, manufactured by BASF) ... 2.3 parts by mass
  • Example 4 A heat ray control sheet was obtained in the same manner as in Example 1 except that the heat ray absorbing part forming composition D having the following composition was used.
  • LaB 6 dispersion resin 10 parts by mass ATO ink (ATO particles (average particle size: 52 nm) 10% by mass, UV curable resin composition (containing photopolymerization initiator) 90% by mass): 80 parts by mass 2-hydroxy- 3-acryloyloxypropyl methacrylate (product name: 701A, Shin-Nakamura Chemical Co., Ltd.) ... 9.2 parts by mass, 1-hydroxy-cyclohexyl-phenyl-ketone (product name: Irgacure184, manufactured by BASF) ... 0.8 parts by mass
  • Example 5 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition E for forming a heat ray absorbing part having the following composition was used.
  • LaB 6 dispersion resin 20 parts by mass ATO ink (ATO particles (average particle size: 52 nm) 10% by mass, UV curable resin composition (containing photopolymerization initiator) 90% by mass): 40 parts by mass 2-hydroxy- 3-acryloyloxypropyl methacrylate (product name: 701A, Shin-Nakamura Chemical Co., Ltd.) 37.7 parts by mass, 1-hydroxy-cyclohexyl-phenyl-ketone (product name: Irgacure184, manufactured by BASF) 2.3 parts by mass
  • Example 6 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition F for forming a heat ray absorbing part having the following composition was used.
  • ATO ink ATO particles (average particle size: 52 nm): 20% by mass
  • UV curable resin composition containing photopolymerization initiator: 80% by mass
  • 40 parts by mass: Bisphenol A Type Epoxy Acrylate Product name: EA-1020, Shin-Nakamura Chemical Co., Ltd.
  • 40 parts by mass 2-hydroxy-3-acryloyloxypropyl methacrylate Product name: 701A, Shin-Nakamura Chemical Co., Ltd.
  • ... 17.2 parts by mass 1-hydroxy-cyclohexyl-phenyl-ketone product name: Irgacure184, manufactured by BASF
  • Example 7 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition G for forming a heat ray absorbing part having the following composition was used.
  • Example 8 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition H for forming a heat ray absorbing part having the following composition was used.
  • ⁇ Heat ray absorbing part forming composition H> -LaB 6 dispersion resin 10 parts by mass-ATO ink (ATO particles (average particle size 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80 mass%) ... 20 parts by mass-Bisphenol A type epoxy Acrylate (Product name: EA-1020, Shin-Nakamura Chemical Co., Ltd.) ... 40 parts by mass 2-hydroxy-3-acryloyloxypropyl methacrylate (Product name: 701A, Shin-Nakamura Chemical Co., Ltd.) ... 26.9 parts by mass, 1- Hydroxy-cyclohexyl-phenyl-ketone (Product name: Irgacure184, manufactured by BASF) 3.1 parts by mass
  • Example 9 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition I for forming a heat ray absorbing part having the following composition was used.
  • ⁇ Composition I for forming a heat ray absorbing portion> -LaB 6 dispersion resin 30 parts by mass-ATO ink (ATO particles (average particle size: 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80 mass%): 5 parts by mass-Bisphenol A type epoxy Acrylate (Product name: EA-1020, Shin-Nakamura Chemical Co., Ltd.) ... 40 parts by mass 2-hydroxy-3-acryloyloxypropyl methacrylate (Product name: 701A, Shin-Nakamura Chemical Co., Ltd.) ... 21.3 parts by mass, 1- Hydroxy-cyclohexyl-phenyl-ketone (Product name: Irgacure184, manufactured by BASF) 3.7 parts by mass
  • Example 10 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition J for forming a heat ray absorbing part having the following composition was used.
  • ⁇ Heat ray absorbing part forming composition J> -LaB 6 dispersion resin 2.5 parts by mass-ATO ink (ATO particles (average particle size 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80% by mass) ... 20 parts by mass-Bisphenol A Type Epoxy Acrylate (Product name: EA-1020 Shin-Nakamura Chemical Co., Ltd.) ...
  • Example 11 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition K for forming a heat ray absorbing part having the following composition was used.
  • ⁇ Heat ray absorbing part forming composition K> -LaB 6 dispersion resin 0.5 parts by mass-ATO ink (ATO particles (average particle size 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80% by mass) ... 20 parts by mass Type epoxy acrylate (Product name: EA-1020, Shin-Nakamura Chemical Co., Ltd.) 40 parts by mass 2-hydroxy-3-acryloyloxypropyl methacrylate (Product name: 701A, Shin-Nakamura Chemical Co., Ltd.) 36.4 parts by mass 1-hydroxy-cyclohexyl-phenyl-ketone (product name: Irgacure184, manufactured by BASF) 3.1 parts by mass
  • Example 12 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition L for forming a heat ray absorbing part having the following composition was used.
  • ⁇ Heat ray absorbing part forming composition L> -LaB 6 dispersion resin 0.5 parts by mass-ATO ink (ATO particles (average particle size 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80% by mass) ... 15 parts by mass
  • Type Epoxy Acrylate Product name: EA-1020, Shin-Nakamura Chemical Co., Ltd.
  • 2-hydroxy-3-acryloyloxypropyl methacrylate Product name: 701A, Shin-Nakamura Chemical Co., Ltd.
  • 41.2 parts by mass 1-hydroxy-cyclohexyl-phenyl-ketone product name: Irgacure184, manufactured by BASF
  • Example 1 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition M for forming a heat ray absorption part having the following composition was used.
  • ATO ink ATO particles (average particle size 52 nm) 10% by mass, UV curable resin composition (containing photopolymerization initiator) 90% by mass) ... 100 parts by mass
  • Example 2 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition N for forming a heat ray absorbing part having the following composition was used.
  • ATO ink ATO particles (average particle size 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80% by mass) ... 100 parts by mass
  • Example 3 A heat ray control sheet was obtained in the same manner as in Example 1 except that the composition O for forming a heat ray absorbing part having the following composition was used.
  • ⁇ Heat-absorbing part forming composition O> -LaB 6 dispersion resin 45 parts by mass-ATO ink (ATO particles (average particle size 52 nm) 20% by mass, UV curable resin composition (containing photopolymerization initiator) 80 mass%) ... 20 parts by mass-Bisphenol A type epoxy Acrylate (Product name: EA-1020, Shin-Nakamura Chemical Co., Ltd.) 31.9 parts by mass, 1-hydroxy-cyclohexyl-phenyl-ketone (Product name: Irgacure184, manufactured by BASF) 3.1 parts by mass
  • the heat ray control sheets of Examples 1 to 12 and Comparative Examples 1 to 3 are attached to a frame, and a diffracted light beam is slit into a 1 cm square slit located 50 cm away from the heat ray control sheet using a laser having a wavelength of 632.8 nm. Only the 0th order light was allowed to pass through. In this case, the intensity I 1 of the laser beam immediately after passing through the heat ray control sheet (mW), and was determined to 0 the intensity of the primary light I 2 (mW) after passing through the slit. Next, diffraction efficiency was calculated from the following formula (1) using the measured I 1 (mW) and I 2 (mW).
  • Visible light transmittance and heat ray transmittance With respect to the heat ray control sheets of Examples 1 to 12 and Comparative Examples 1 to 3, the visible light transmittance and the heat ray transmittance were measured when the light incident angles were 0 ° and 60 °. Visible light transmittance is specified in the same standard by measuring spectral transmittance in a wavelength range of 380 nm to 780 nm according to JIS A5759-2008 using an infrared visible ultraviolet spectrophotometer (UV3100PC manufactured by Shimadzu Corporation). It is a value calculated by the following calculation formula.
  • the heat ray transmittance is an average value of transmittance in a wavelength range of 800 nm to 2500 nm when measured by a method according to the same standard.
  • Comparative Examples 1 and 2 are heat ray absorbing parts containing only ATO, and the content thereof is more than 8% by mass, so that the visible light transmittance is high when the light incident angle ⁇ is 0 °. Multiple images were remarkably exhibited and the visibility was poor.
  • Comparative Example 3 LaB 6 and ATO were used in combination, and the ATO content was 8% by mass or less. Thus, multiple images were not observed, but the LaB 6 content was 0.00. Since it was more than 8% by mass, the heat ray control sheet exhibited LaB 6 color, and the visible light transmittance was low when the incident angle ⁇ of light was 0 °, and the visibility was poor.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention a pour principal objectif de fournir une feuille de régulation de rayons calorifiques qui inhibe l'apparition de fantôme, présentant ainsi une excellente visibilité, qui permet de réguler la quantité de rayons calorifiques en fonction de l'angle d'incidence d'une lumière. La feuille de régulation de rayons calorifiques est caractéristique en ce qu'elle possède : une partie transmission de lumière possédant une pluralité de parties rainure sur une de ses surfaces; et une partie absorption de rayons calorifiques qui est formée à l'intérieur desdites parties rainure de ladite partie transmission de lumière, et qui contient en tant que particules d'absorption de rayons calorifique un hexaborure de lanthane et un oxyde d'étain dopé à l'antimoine. En outre, la teneur en hexaborure de lanthane dans ladite partie absorption de rayons calorifiques, est inférieure ou égale à 0,8% en masse, et la teneur en oxyde d'étain dopé à l'antimoine, est inférieure ou égale à 8% en masse.
PCT/JP2014/058887 2013-03-29 2014-03-27 Feuille de régulation de rayons calorifiques WO2014157531A1 (fr)

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JP2013071494A JP2014197042A (ja) 2013-03-29 2013-03-29 熱線制御シート
JP2013-071494 2013-03-29

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000169765A (ja) * 1998-12-10 2000-06-20 Sumitomo Metal Mining Co Ltd 日射遮蔽膜用塗布液及びこれを用いた日射遮蔽膜
JP2001089202A (ja) * 1999-05-17 2001-04-03 Sumitomo Metal Mining Co Ltd 日射遮蔽合わせガラス
JP2004091219A (ja) * 2002-08-29 2004-03-25 Nippon Sheet Glass Co Ltd 熱遮蔽合わせガラス
JP2008247623A (ja) * 2007-03-29 2008-10-16 Toppan Printing Co Ltd 熱線遮断ガラス
JP2011069126A (ja) * 2009-09-25 2011-04-07 Sekisui Chem Co Ltd 採光遮熱シート及び合わせガラス
JP2011094469A (ja) * 2009-09-29 2011-05-12 Sekisui Chem Co Ltd 調光用ルーバーシート、調光体及び調光方法
WO2013141375A1 (fr) * 2012-03-22 2013-09-26 大日本印刷株式会社 Feuille pour commander les rayons de chaleur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000169765A (ja) * 1998-12-10 2000-06-20 Sumitomo Metal Mining Co Ltd 日射遮蔽膜用塗布液及びこれを用いた日射遮蔽膜
JP2001089202A (ja) * 1999-05-17 2001-04-03 Sumitomo Metal Mining Co Ltd 日射遮蔽合わせガラス
JP2004091219A (ja) * 2002-08-29 2004-03-25 Nippon Sheet Glass Co Ltd 熱遮蔽合わせガラス
JP2008247623A (ja) * 2007-03-29 2008-10-16 Toppan Printing Co Ltd 熱線遮断ガラス
JP2011069126A (ja) * 2009-09-25 2011-04-07 Sekisui Chem Co Ltd 採光遮熱シート及び合わせガラス
JP2011094469A (ja) * 2009-09-29 2011-05-12 Sekisui Chem Co Ltd 調光用ルーバーシート、調光体及び調光方法
WO2013141375A1 (fr) * 2012-03-22 2013-09-26 大日本印刷株式会社 Feuille pour commander les rayons de chaleur

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