TW201927572A - Optical laminate, polarizing lens and eyewear provided with the same - Google Patents
Optical laminate, polarizing lens and eyewear provided with the same Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/12—Polarisers
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Abstract
Description
本發明係有關於一種具備膽固醇型液晶層及偏光元件之光學積層體、以及使用該光學積層體之眼用配戴具(太陽眼鏡、護目鏡、頭盔用遮光板等)。 The present invention relates to an optical multilayer body including a cholesterol-type liquid crystal layer and a polarizing element, and an ophthalmic wearing device (sunglasses, goggles, helmet visor, etc.) using the optical multilayer body.
為了減少由來自水面、路面、雪面等的反射光所造成的刺眼程度，係使用眼用配戴具(太陽眼鏡、護目鏡、頭盔用遮光板等)。例如太陽眼鏡係藉由在透鏡部使用色素等予以著色，利用該色素的吸收來減低入射至眼睛的光量而減少刺眼程度，並且，對於水面和雪面的反射光係以偏光太陽眼鏡為特別有效。 In order to reduce glare caused by reflected light from water, road, snow, etc., eyewear (sunglasses, goggles, visor for helmets, etc.) is used. For example, sunglasses are colored by using pigments or the like in the lens portion. The absorption of the pigments is used to reduce the amount of light incident on the eyes and reduce the degree of glare. Polarized sunglasses are particularly effective for reflecting light on the water and snow .
因偏光太陽眼鏡係設計成使反射光變成偏光而有效地吸收該偏光方向的光線，故不會大幅度地減少對眼睛的入射光量，且能夠減少刺眼程度並提升視認性。 Since polarized sunglasses are designed to make reflected light into polarized light and effectively absorb light in the direction of the polarized light, the amount of incident light to the eyes is not greatly reduced, and the degree of glare can be reduced and visibility can be improved.
偏光太陽眼鏡通常係藉由將偏光透鏡裝入框架而得，該偏光透鏡係藉由在模具內安裝以聚碳酸酯等支撐體挾持偏光元件而成之光學積層體，並將透鏡基材層 予以射出成形而加工成所期望之形狀(專利文獻1)。偏光元件係由二色性染料和多碘-聚乙烯醇(PVA)錯合物等所謂二色性色素與PVA等高分子一起進行單軸配向而成之薄膜，依照所使用的色素之顏色，而能夠得到各式各樣顏色的偏光元件，若為通常的太陽眼鏡，則多半是使其成為灰色系顏色，以對於可見光區域整體賦予偏光性。 Polarized sunglasses are generally obtained by mounting a polarizing lens into a frame. The polarizing lens is an optical laminate formed by mounting a polarizing element with a support such as polycarbonate in a mold, and a lens base layer. It is injection-molded and processed into a desired shape (Patent Document 1). The polarizing element is a film formed by uniaxially aligning a so-called dichroic dye such as a dichroic dye and a polyiodine-polyvinyl alcohol (PVA) complex with a polymer such as PVA. According to the color of the pigment used, In addition, polarizing elements of various colors can be obtained, and if they are ordinary sunglasses, they are mostly made into a gray color to impart polarization to the entire visible light region.
對於偏光太陽眼鏡，為了賦予設計性或更進一步提升視認性，係有將多層膜蒸鍍在表面之情況。若賦予多層膜，從他人而言係能夠觀看到太陽眼鏡表面的反射光為藍色、綠色、紅色之金屬色調的色彩，從配戴者而言則可藉由將特定光線予以反射而在減少刺眼程度之同時亦使對景色的視認性更進一步提升。若賦予如此之多層膜，對配戴者為有益，但是就另一方面來看，有皮脂等若附著在多層膜時會不容易除去之操作上的問題點，並且，若在海邊等暴露於水分及海風之場所，則有多層膜會剝落之課題。 For polarized sunglasses, a multilayer film is deposited on the surface in order to provide design or further enhance visibility. If a multi-layer film is provided, it can be seen by others that the reflected light on the surface of the sunglasses is a metallic tint of blue, green, and red. From the perspective of the wearer, it can be reduced by reflecting specific light. At the same time, the visibility of the scenery is further improved. If such a multilayer film is provided, it is beneficial to the wearer, but on the other hand, there are problems in operation such as sebum that is difficult to remove when attached to the multilayer film, and if it is exposed to the sea or the like In the place of moisture and sea breeze, there is a problem that the multilayer film may peel off.
對於此種課題，可考慮採用將多層膜設置在支撐體的內側(亦即偏光元件與支撐體之間)之方法，但因為多層膜係藉由各層間的折射率差而顯現反射性能，所以難以得到與外側的空氣界面同等的反射性能。此外，因為多層膜係由無機物質所構成，所以其與屬於有機物之偏光元件之間的接著會有問題。 For such a problem, a method of arranging a multilayer film on the inside of the support (that is, between the polarizing element and the support) may be considered. However, because the multilayer film exhibits reflection performance due to the difference in refractive index between the layers, It is difficult to obtain reflection performance equivalent to that of the outside air interface. In addition, since the multilayer film is composed of an inorganic substance, there is a problem in adhesion between the multilayer film and a polarizing element that is an organic substance.
另一方面，就不使用多層膜而是使用有機物來賦予金屬色調之方法而言，係有使用膽固醇型液晶層 之方法(專利文獻2)。膽固醇型液晶中，係使液晶分子成為螺旋配向的狀態，並具有依據螺旋節距的長度而將與特定波長區域的螺旋方向為相同方向之圓偏光成分予以選擇性地反射之功能。光學積層體若使用在使該螺旋配向成為所期望的反射波長區域的狀態下予以固定化而成的膽固醇型液晶層，則會具有鮮明的色調且能夠賦予裝飾性。 On the other hand, in the method for imparting a metallic hue using an organic substance instead of a multilayer film, a cholesterol-type liquid crystal layer is used. Method (Patent Document 2). In the cholesteric liquid crystal, the liquid crystal molecules are in a state of spiral alignment, and have a function of selectively reflecting a circularly polarized light component in the same direction as the spiral direction of a specific wavelength region according to the length of the spiral pitch. When the cholesteric liquid crystal layer obtained by immobilizing the spiral alignment into a desired reflection wavelength region is used for the optical multilayer body, it has a clear hue and can provide decorative properties.
從高透明性、無色性、高耐衝撃性、高耐熱性等而言，偏光透鏡的透鏡基材層通常係使用聚碳酸酯(專利文獻3)。 In terms of high transparency, colorlessness, high impact resistance, and high heat resistance, polycarbonate is generally used as the lens base layer of the polarizing lens (Patent Document 3).
[專利文獻1]日本特開2010-39220號公報 [Patent Document 1] Japanese Patent Laid-Open No. 2010-39220
[專利文獻2]日本特開2001-180200號公報 [Patent Document 2] Japanese Patent Laid-Open No. 2001-180200
[專利文獻3]國際公開第2016/002582號公報 [Patent Document 3] International Publication No. 2016/002582
但是，在專利文獻3中，聚碳酸酯係因熱變形溫度高達130至140℃，故在成型時之加工性方面會有問題存在。此外，在使用聚碳酸酯之偏光透鏡中，係因加熱所產生的排氣之影響，而使所接觸的框架部分有白化的問題，並且框架的材質係受到限制。而且，將熱硬化性接著劑使用於膽固醇型液晶層與聚碳酸酯樹脂之接著時，有無法得到充分的接著強度之情形。 However, in Patent Document 3, since the heat distortion temperature of the polycarbonate is as high as 130 to 140 ° C, there is a problem in terms of processability during molding. In addition, in a polarizing lens using polycarbonate, there is a problem of whitening the frame portion in contact due to the influence of exhaust gas generated by heating, and the material of the frame is limited. In addition, when a thermosetting adhesive is used for the adhesion of a cholesteric liquid crystal layer and a polycarbonate resin, sufficient adhesion strength may not be obtained.
本發明之目的係提供一種在具備膽固醇型液晶層之偏光太陽眼鏡等眼用配戴具中為成型時的加工性良好、輕量且生產性高、而且可抑制框架白化的光學積層體，以及使用該光學積層體之眼用配戴具。 An object of the present invention is to provide an optical laminate having good processability, light weight, high productivity, and suppressing whitening of a frame in an ophthalmic wearer such as polarized sunglasses including a cholesterol-type liquid crystal layer, and An ophthalmic wearing device using the optical laminate.
本發明者等專心研討之結果，發現一種光學積層體，係在第一支撐體與第二支撐體之間具備膽固醇型液晶層及偏光元件；其中，第一支撐體及/或第二支撐體係含有聚醯胺樹脂；而且，係以無溶劑系紫外線硬化型接著劑將選自由下述1)至3)之組合所組成群組之至少一組合予以貼合，1)第一或第二支撐體與偏光元件、2)第一或第二支撐體與膽固醇型液晶層、以及3)膽固醇型液晶層與偏光元件。藉由該光學積層體即能夠解決上述課題，而完成了本發明。 As a result of intensive research by the present inventors, an optical laminated body was found, which includes a cholesterol-type liquid crystal layer and a polarizing element between the first support and the second support; wherein the first support and / or the second support system Contains polyamide resin; In addition, at least one combination selected from the group consisting of the following 1) to 3) is bonded with a solvent-free ultraviolet curing adhesive, 1) the first or second support And a polarizing element, 2) a first or second support and a cholesteric liquid crystal layer, and 3) a cholesteric liquid crystal layer and a polarizing element. This problem can be solved by this optical laminated body, and this invention was completed.
亦即，本發明係有關於下述者： That is, the present invention relates to the following:
(1)一種光學積層體，係在第一支撐體與第二支撐體之間具備膽固醇型液晶層及偏光元件；其中，第一支撐體及/或第二支撐體係含有聚醯胺樹脂；並且，係以無溶劑系紫外線硬化型接著劑將選自由下述1)至3)所組成群組之至少一組合予以貼合：1)第一或第二支撐體與偏光元件、2)第一或第二支撐體與膽固醇型液晶層、及3)膽固醇型液晶層與偏光元件。 (1) An optical laminate comprising a cholesteric liquid crystal layer and a polarizing element between a first support and a second support; wherein the first support and / or the second support system contains a polyamide resin; and , Using a solvent-free UV-curable adhesive to attach at least one combination selected from the group consisting of 1) to 3): 1) a first or second support and a polarizing element, 2) a first Or a second support and a cholesteric liquid crystal layer, and 3) a cholesteric liquid crystal layer and a polarizing element.
(2)如前述(1)所述之光學積層體，其中，前述聚醯胺樹脂係具有脂肪族骨架之耐綸(nylon)。 (2) The optical laminate according to the above (1), wherein the polyamide resin is a nylon having an aliphatic skeleton.
(3)如前述(1)或(2)所述之光學積層體，其中，前述無溶劑系紫外線硬化型接著劑係含有胺甲酸酯(甲基)丙烯酸酯。 (3) The optical layered body according to the above (1) or (2), wherein the solvent-free ultraviolet curing type adhesive contains a urethane (meth) acrylate.
(4)一種偏光透鏡，係在前述(1)至前述(3)中任一項所述之光學積層體射出成型有透鏡基材者。 (4) A polarizing lens, which is obtained by injection-molding a lens substrate in the optical multilayer body according to any one of (1) to (3) above.
(5)如前述(4)所述之偏光透鏡，其中，前述透鏡基材係含有聚醯胺樹脂。 (5) The polarizing lens according to the above (4), wherein the lens base material contains a polyamide resin.
(6)如前述(5)所述之偏光透鏡，其中，前述透鏡基材所含有的聚醯胺樹脂係具有脂肪族骨架之耐綸。 (6) The polarizing lens according to the above (5), wherein the polyamide resin contained in the lens substrate is a nylon having an aliphatic skeleton.
(7)一種眼用配戴具，係在框架中裝入有前述(4)至前述(6)項中任一項所述之偏光透鏡者。 (7) An ophthalmic wearing device in which a polarizing lens according to any one of (4) to (6) above is incorporated in a frame.
本發明的光學積層體係在使用於偏光太陽眼鏡等眼用配戴具時，為成型時的加工性優異、輕量且生產性高、而且能夠抑制框架白化。 When the optical laminated system of the present invention is used in an ophthalmic wearing device such as polarized sunglasses, it has excellent processability during molding, is lightweight, has high productivity, and can suppress frame whitening.
1‧‧‧第一支撐體 1‧‧‧first support
2‧‧‧接著劑層 2‧‧‧ Adhesive layer
3‧‧‧膽固醇型液晶層 3‧‧‧cholesterol type liquid crystal layer
4‧‧‧接著劑層 4‧‧‧ Adhesive layer
5‧‧‧膽固醇型液晶層 5‧‧‧cholesterol type liquid crystal layer
6‧‧‧接著劑層 6‧‧‧ Adhesive layer
7‧‧‧偏光元件 7‧‧‧ polarizing element
8‧‧‧接著劑層 8‧‧‧ Adhesive layer
9‧‧‧第二支撐體 9‧‧‧ second support
10‧‧‧光學積層體 10‧‧‧ Optical Laminate
11‧‧‧偏光透鏡 11‧‧‧ polarized lens
12‧‧‧透鏡基材 12‧‧‧ lens substrate
第1圖係顯示本發明的光學積層體之說明圖。 FIG. 1 is an explanatory diagram showing an optical multilayer body of the present invention.
第2圖係顯示本發明之其它實施形態的光學積層體之說明圖。 Fig. 2 is an explanatory view showing an optical multilayer body according to another embodiment of the present invention.
本發明的光學積層體係具備膽固醇型液晶層，其係具有作為光反射層的功能。所謂膽固醇型液晶層，係包含：具有手性(chirality)之向列型液晶(Nematic Liquid Crystal)、或是對於向列型液晶添加手性劑(chiral agent)而 成之調配物。因可依照手性劑的種類和量而任意地設計螺旋方向和反射波長，故以對於向列型液晶添加手性劑而得到膽固醇型液晶層之方法為佳。本發明所使用的向列型液晶層，係與所謂於電場操作之液晶層為不同，是將螺旋配向狀態予以固定化而使用，故以使用具有聚合性基之向列型液晶單體為佳。 The optical laminated system of the present invention includes a cholesteric liquid crystal layer, which functions as a light reflecting layer. The so-called cholesteric liquid crystal layer includes a nematic liquid crystal having chirality, or a chiral agent added to the nematic liquid crystal. Into the formulation. Since the spiral direction and reflection wavelength can be arbitrarily designed according to the type and amount of the chiral agent, a method of adding a chiral agent to a nematic liquid crystal to obtain a cholesterol-type liquid crystal layer is preferable. The nematic liquid crystal layer used in the present invention is different from the so-called liquid crystal layer operated in an electric field, and is used by fixing the spiral alignment state. Therefore, it is preferable to use a nematic liquid crystal monomer having a polymerizable group. .
關於本發明所使用的膽固醇型液晶層之製造方法，係例如對於具有聚合性基之向列型液晶單體，以反射所期望的波長之方式，添加必要量之右旋或左旋的手性劑。其次，將該等溶解於溶劑，並添加光聚合起始劑。然後，將該溶液以盡可能厚度均勻之方式塗佈在PET膜等塑膠基板上，一邊藉由加熱而除去溶劑、一邊在基板上成為膽固醇型液晶，在會以所期望的螺旋節距來配向之溫度條件下放置一定時間，此時，可藉由在塗佈前預先對於塑膠薄膜表面進行摩擦或延伸等配向處理，而使膽固醇型液晶之配向更均勻，並減少薄膜的霧度值。繼而，在保持該配向的狀態下，藉由以高壓水銀燈等照射紫外線且使配向固定化，而得到本發明所使用的膽固醇型液晶層。 Regarding the method for producing a cholesteric liquid crystal layer used in the present invention, for example, for a nematic liquid crystal monomer having a polymerizable group, a necessary amount of a right-handed or left-handed chiral agent is added so as to reflect a desired wavelength. . Next, these were dissolved in a solvent, and a photopolymerization initiator was added. Then, the solution is coated on a plastic substrate such as a PET film with a uniform thickness as much as possible, while removing the solvent by heating, the substrate becomes a cholesteric liquid crystal on the substrate, and is aligned at a desired spiral pitch. It can be left for a certain period of time under temperature conditions. At this time, the orientation of the cholesteric liquid crystal can be made more uniform and the haze value of the film can be reduced by performing an alignment treatment such as rubbing or stretching on the surface of the plastic film before coating. Then, while maintaining the alignment, the alignment is fixed by irradiating ultraviolet rays with a high-pressure mercury lamp or the like to obtain a cholesterol-type liquid crystal layer used in the present invention.
本發明所使用的膽固醇型液晶層，係能夠積層2層或3層以上而使用，亦能夠以單層而使用。例如積層2層而使用時，為了維持高偏光度，較宜將右旋者及左旋者予以積層而使用。 The cholesteric liquid crystal layer used in the present invention can be used by laminating two or more layers, and can also be used as a single layer. For example, when two layers are stacked and used, in order to maintain a high degree of polarization, the right-hander and the left-hander are preferably stacked and used.
就積層之手段而言，係沒有特別限制，以使用黏著劑和接著劑而積層為佳。黏著劑可舉出丙烯酸系 和橡膠系的黏著劑，以容易調整接著性和保持力等之丙烯酸系黏著劑為佳。此外，接著劑可舉出紫外線硬化型接著劑和熱硬化型接著劑。若為紫外線硬化型接著劑時，係可藉由將混合了複數種具有丙烯醯基或環氧基之單體而成之組成物，在光聚合起始劑的存在下，照射紫外線而硬化並進行接著。若為熱硬化型接著劑時，係可藉由將混合了複數種具有環氧基之單體而成之組成物，在酸觸媒的存在下，進行加熱而硬化並進行接著。就短時間而硬化且生產性高之觀點而言，係以紫外線硬化型接著劑為佳。 The method of lamination is not particularly limited, and it is preferable to use an adhesive and an adhesive for lamination. Acrylic For rubber-based adhesives, acrylic adhesives that are easy to adjust for adhesion and retention are preferred. Examples of the adhesive include a UV-curable adhesive and a heat-curable adhesive. In the case of a UV-curable adhesive, it is a composition obtained by mixing a plurality of monomers having an acrylic fluorenyl group or an epoxy group in the presence of a photopolymerization initiator to irradiate ultraviolet rays to harden and Go on. In the case of a thermosetting adhesive, a composition obtained by mixing a plurality of monomers having an epoxy group in the presence of an acid catalyst can be used to harden and then adhere. From the viewpoint of hardening in a short time and high productivity, an ultraviolet curing adhesive is preferred.
本發明所使用的偏光元件，在典型上可舉出PVA偏光膜。製造方法係沒有特別限定，係使含有聚乙烯醇或其衍生物之高分子膜吸附碘或二色性染料等色素且使該薄膜進行單軸延伸配向而製造。關於色素，就耐熱性之觀點而言，係以二色性染料為佳，特別是以含有具有磺酸基的偶氮色素之直接染料為佳。 The polarizing element used in the present invention is typically a PVA polarizing film. The production method is not particularly limited, and is produced by causing a polymer film containing polyvinyl alcohol or a derivative thereof to adsorb a pigment such as iodine or a dichroic dye, and uniaxially stretching the film. The dye is preferably a dichroic dye from the viewpoint of heat resistance, and particularly preferably a direct dye containing an azo dye having a sulfonic acid group.
本發明的光學積層體係具有第一支撐體及第二支撐體。第一支撐體及/或第二支撐體係含有聚醯胺樹脂。相較於聚碳酸酯樹脂，聚醯胺樹脂係光學異方性較少且抑制雙折射，而且亦具有優異的耐溶劑性。此外，又為比重較低且輕量，而且熱變形溫度較低，所以在成型時的加工性良好。使用耐綸作為射出成型樹脂時，為了防止因折射率差所引起之外觀惡化，而且為了確保密著性，以將透鏡基材層的射出成型樹脂與光學積層體的支撐體設為相同材料為佳，就此點而言，亦是以使用聚醯胺樹脂為佳。 另外，使用聚醯胺樹脂時，因為能夠抑制因加熱所產生的排氣之影響而導致之框架白化現象，所以，如後所述，就框架材質沒有限制之觀點而言，亦是較佳。 The optical laminated system of the present invention includes a first support and a second support. The first support and / or the second support system contains a polyamide resin. Compared with polycarbonate resins, polyamide resins have less optical anisotropy, suppress birefringence, and have excellent solvent resistance. In addition, the specific gravity is low and lightweight, and the heat distortion temperature is low, so the processability during molding is good. When using nylon as the injection molding resin, in order to prevent deterioration of the appearance due to the refractive index difference, and to ensure adhesion, the injection molding resin of the lens base layer and the support of the optical laminate are made of the same material. In this regard, it is also preferable to use a polyamide resin. In addition, when a polyamide resin is used, since the frame whitening phenomenon caused by the influence of exhaust gas generated by heating can be suppressed, it is also preferable from the viewpoint that the material of the frame is not limited, as described later.
就聚醯胺樹脂而言，可舉出具有脂肪族骨架之耐綸、只由芳香族骨架所構成之聚芳醯胺。耐綸可舉出耐綸6、耐綸11、耐綸12、耐綸66。聚芳醯胺可舉出對位(para)系聚芳醯胺、間位(meta)系聚芳醯胺。 Examples of the polyamine resin include nylon having an aliphatic skeleton and polyarylamine composed of only an aromatic skeleton. Examples of the nylon include nylon 6, nylon 11, nylon 12, and nylon 66. Examples of the polyaramide include para-based polyaramide and meta-based polyaramide.
當只有第一支撐體或第二支撐體係含有聚醯胺樹脂時，另一支撐體係以聚碳酸酯樹脂或三乙酸纖維素樹脂為佳。 When only the first support or the second support system contains a polyamide resin, the other support system is preferably a polycarbonate resin or a cellulose triacetate resin.
本發明中，在將「支撐體與偏光元件之間」、及/或「支撐體與膽固醇型液晶層之間」、及/或「膽固醇型液晶層與偏光元件之間」予以貼合時，係使用無溶劑系紫外線硬化型接著劑。若使用溶劑系時，會有侵蝕基材表面且接著力降低之課題，相對於此，藉由使用無溶劑系的接著劑，而能夠抑制對薄膜造成之損傷。若為紫外線硬化型接著劑時，係能夠藉由將混合了複數種具有丙烯醯基或環氧基之單體而成之組成物在光聚合起始劑的存在下照射紫外線而硬化並進行接著。就短時間硬化且生產性高之觀點而言，係以紫外線硬化型接著劑為佳。 In the present invention, when "between the support and the polarizing element" and / or "between the support and the cholesterol-type liquid crystal layer" and / or "between the cholesterol-type liquid crystal layer and the polarizing element", A solventless UV curing adhesive is used. When a solvent system is used, there is a problem that the surface of the substrate is eroded and the adhesion force is reduced. In contrast, by using a solvent-free adhesive, damage to the film can be suppressed. In the case of an ultraviolet-curing adhesive, the composition can be cured by irradiating ultraviolet rays in the presence of a photopolymerization initiator to a composition obtained by mixing a plurality of monomers having an acrylic fluorenyl group or an epoxy group. . From the viewpoint of short-term curing and high productivity, an ultraviolet curing adhesive is preferred.
以在全部的接著層中使用無溶劑系紫外線硬化型接著劑為佳。 It is preferable to use a solvent-free ultraviolet curing type adhesive for all the adhesive layers.
本發明所使用的無溶劑系紫外線硬化型接著劑，係可舉出(甲基)丙烯酸酯系接著劑、烯(ene)/硫醇系 接著劑、不飽和聚酯系接著劑等利用光自由基聚合反應之接著劑，或是環氧系接著劑、氧雜環丁烷系接著劑、環氧/氧雜環丁烷系接著劑、乙烯基醚系接著劑等利用光陽離子聚合反應之接著劑等，該等接著劑可單獨使用亦可混合而使用。就使透明性．耐候性亦良好之觀點而言，尤其是以(甲基)丙烯酸酯系接著劑為佳。(甲基)丙烯酸酯系接著劑係含有「在分子中具有1個以上的(甲基)丙烯醯基之單體或寡聚物」及「光聚合起始劑」作為必要成分。該(甲基)丙烯酸酯系接著劑亦可因應需要而適當地含有添加劑等。在分子中具有1個以上的(甲基)丙烯醯基之寡聚物，例如可舉出環氧(甲基)丙烯酸酯、聚酯(甲基)丙烯酸酯、及胺甲酸酯(甲基)丙烯酸酯，以胺甲酸酯(甲基)丙烯酸酯為特佳。 Examples of the solvent-free UV-curable adhesive used in the present invention include (meth) acrylate-based adhesives and ene / thiol-based adhesives. Adhesives, unsaturated polyester-based adhesives, and other adhesives that use photoradical polymerization, or epoxy-based adhesives, oxetane-based adhesives, epoxy / oxetane-based adhesives, Vinyl ether-based adhesives and the like are used in photocationic polymerization reactions. These adhesives may be used alone or in combination. Make it transparent. From the viewpoint of good weather resistance, a (meth) acrylate-based adhesive is particularly preferred. The (meth) acrylate-based adhesive contains "a monomer or oligomer having one or more (meth) acrylfluorene groups in the molecule" and a "photopolymerization initiator" as essential components. This (meth) acrylic-type adhesive agent may contain an additive etc. suitably as needed. Examples of the oligomer having one or more (meth) acrylfluorene groups in the molecule include epoxy (meth) acrylate, polyester (meth) acrylate, and urethane (methyl ) Acrylic acid esters, particularly preferably urethane (meth) acrylates.
在調整紫外線硬化型接著劑的黏度時，只要使用能使接著劑充分地溶解之各種溶劑即可，但因有會侵蝕基材表面且使接著力降低之問題，故以使用反應性稀釋劑(例如單官能丙烯酸系單體)為佳。單官能丙烯酸系單體，係例如可舉出(甲基)丙烯酸異辛酯、(甲基)丙烯酸月桂酯、(甲基)丙烯酸硬脂酯、(甲基)丙烯酸環己酯、(甲基)丙烯酸2-甲氧基乙酯、甲氧基三乙二醇(甲基)丙烯酸酯、酚衍生物的環氧烷(alkylene oxide)改性物之(甲基)丙烯酸酯、2-乙基己基卡必醇(甲基)丙烯酸酯、(甲基)丙烯酸乙氧基乙氧基乙酯、三環癸烷(甲基)丙烯酸酯、(甲基)丙烯酸二環烯酯、(甲基)丙烯酸異莰酯、(甲基)丙烯酸金剛烷酯、(甲基)丙烯酸苄酯、(甲基)丙烯酸四氫糠酯、(甲基)丙烯酸2- 羥基乙酯、(甲基)丙烯酸3-羥基丙酯、(甲基)丙烯酸4-羥基丁酯、(甲基)丙烯酸2-羥基-3-苯氧基丙酯、N-(甲基)丙烯醯氧基乙基六氫鄰苯二甲醯亞胺、ω-羰基聚己內酯(甲基)丙烯酸酯、(甲基)丙烯酸鄰苯二甲酸單羥基己酯、(甲基)丙烯酸二聚物等。 When adjusting the viscosity of the UV-curable adhesive, it is sufficient to use various solvents that can sufficiently dissolve the adhesive. However, since there is a problem that the surface of the substrate is eroded and the adhesive force is reduced, a reactive diluent ( For example, a monofunctional acrylic monomer is preferred. Examples of the monofunctional acrylic monomer include isooctyl (meth) acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate, cyclohexyl (meth) acrylate, and (meth) ) 2-methoxyethyl acrylate, methoxytriethylene glycol (meth) acrylate, alkylene oxide modified products of phenol derivatives, (meth) acrylate, 2-ethyl Hexylcarbitol (meth) acrylate, ethoxyethoxyethyl (meth) acrylate, tricyclodecane (meth) acrylate, dicycloenyl (meth) acrylate, (meth) Isoamyl acrylate, adamantane (meth) acrylate, benzyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, 2-methacrylate Hydroxyethyl ester, 3-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 2-hydroxy-3-phenoxypropyl (meth) acrylate, N- (meth) propylene Ethoxyethylhexahydrophthalimide, ω-carbonyl polycaprolactone (meth) acrylate, (meth) acrylic phthalate monohydroxyhexyl, (meth) acrylic acid dimer Things.
紫外線硬化型接著劑係藉由照射紫外線而硬化。所使用的紫外線係能夠使用各種類型。紫外線的光源係沒有特別限定，例如能夠使用太陽光、低壓水銀燈、中壓水銀燈、高壓水銀燈、超高壓水銀燈、鹵化金屬燈等、該等之中，就廉價且泛用性優異之觀點而言，係以高壓水銀燈及鹵化金屬燈為佳。 The ultraviolet-curable adhesive is cured by irradiating ultraviolet rays. Various types of ultraviolet rays can be used. The ultraviolet light source is not particularly limited. For example, sunlight, a low-pressure mercury lamp, a medium-pressure mercury lamp, a high-pressure mercury lamp, an ultra-high-pressure mercury lamp, a metal halide lamp, and the like can be used. Among these, from the viewpoint of being inexpensive and excellent in versatility, High-pressure mercury lamps and metal halide lamps are preferred.
以支撐體隔著接著劑層等來挾持膽固醇型液晶層及偏光元件，藉此而可得到本發明的光學積層體。 The cholesteric liquid crystal layer and the polarizing element are held by a support with an adhesive layer or the like interposed therebetween, whereby the optical laminate of the present invention can be obtained.
第2圖係圖示本發明的構成圖之一個例子。以支撐體1、9隔著接著劑層2、8來挾持經由接著劑層4、6而積層之膽固醇型液晶層3、5及偏光元件7，藉此而得到本發明之光學積層體10。藉由將透鏡基材層12予以射出成型在本發明的光學積層體10，而得到偏光透鏡11。 FIG. 2 is an example of a configuration diagram of the present invention. The cholesterol-type liquid crystal layers 3 and 5 and the polarizing element 7 laminated via the adhesive layers 4 and 6 are held by the support bodies 1 and 9 via the adhesive layers 2 and 8 to obtain the optical laminate 10 of the present invention. The polarizing lens 11 is obtained by injection-molding the lens base material layer 12 on the optical multilayer body 10 of the present invention.
透鏡基材係沒有特別限制，例如能夠使用：可藉由射出成形法來成形之熱塑性樹脂、可藉由澆鑄聚合等來成形之通常被使用在眼用配戴具透鏡等之熱硬化性樹脂等。例如可舉出：甲基丙烯酸甲酯同元聚合物、甲基丙烯酸甲酯與1種以上的其它單體之共聚物等的(甲基)丙烯酸系樹脂；二乙二醇雙烯丙基碳酸酯同元聚合物、二乙二 醇雙烯丙基碳酸酯與1種以上的其它單體之共聚物等的二乙二醇雙烯丙基碳酸酯系樹脂；丙烯腈-苯乙烯共聚物；含鹵素的共聚物；具有硫醚鍵之單體的同元聚合物、具有硫醚鍵之單體與1種以上的其它單體之共聚物等的聚硫醚系樹脂；聚脲樹脂；聚醯胺樹脂；聚碳酸酯樹脂；聚苯乙烯樹脂；聚烯烴樹脂；聚氯乙烯樹脂；聚酯樹脂；聚對苯二甲酸乙二酯；聚胺甲酸酯(polyurethane)樹脂；聚硫胺甲酸酯(polythiourethane)樹脂等含硫之胺甲酸酯系樹脂；環氧樹脂等。從與光學積層體的密著性之觀點而言，係以與接觸之層為相同的材料為佳。 The lens base material is not particularly limited, and examples thereof include thermoplastic resins that can be molded by injection molding, thermosetting resins that are generally used in ophthalmic wear lenses, and the like that can be molded by casting polymerization. . Examples include (meth) acrylic resins such as methyl methacrylate homopolymers, copolymers of methyl methacrylate and one or more other monomers, and diethylene glycol diallyl carbonate. Ester homopolymer, diethylene glycol Diethylene glycol diallyl carbonate resins such as copolymers of alcohol diallyl carbonate and one or more other monomers; acrylonitrile-styrene copolymers; halogen-containing copolymers; thioethers Polythioether resins, such as homopolymers of monomers having a bond, copolymers of monomers having a thioether bond and one or more other monomers; polyurea resins; polyamide resins; polycarbonate resins; Polystyrene resin; Polyolefin resin; Polyvinyl chloride resin; Polyester resin; Polyethylene terephthalate; Polyurethane resin; Polythiourethane resin and other sulfur-containing resins Urethane resin; epoxy resin, etc. From the standpoint of adhesion with the optical laminate, it is preferable that the same material be used as the layer in contact.
藉由使用本發明的光學積層體，以使膽固醇型液晶層成為外側之方式成形為所期望的形狀且固定在框架，而能夠得到使用本發明的光學積層體之眼用配戴具(太陽眼鏡、護目鏡、頭盔用遮光板等)。 By using the optical laminated body of the present invention, the cholesteric liquid crystal layer is formed into a desired shape and fixed to the frame so that the cholesteric liquid crystal layer becomes the outer side, an eyewear (sunglasses) using the optical laminated body of the present invention can be obtained , Goggles, visors for helmets, etc.).
例如若為太陽眼鏡時，係將光學積層體予以沖切成所期望的形狀，其次，施行彎曲加工。關於彎曲加工的方法係沒有特別限制，只要按照目的並歷經能將形狀賦予成球面或非球面的步驟來進行加工即可。亦可進一步將樹脂射出在彎曲加工品。此時，亦具有使光學積層體的厚度不均情形變不見之優點，即便是不具有焦點折射力的透鏡，亦能夠使用於具有特別優異的耐衝撃性、外觀和使眼精不疲勞之製品。 For example, in the case of sunglasses, the optical laminated body is punched into a desired shape, and then a bending process is performed. There is no particular limitation on the method of the bending processing, as long as the processing can be performed in accordance with the purpose and through a step capable of imparting a shape to a spherical surface or an aspherical surface. It is also possible to inject the resin into the bent product. At this time, there is also an advantage that the uneven thickness of the optical laminated body is not seen. Even if the lens does not have a focal refractive power, it can be used for products having particularly excellent impact resistance, appearance, and eye fatigue. .
在表面適當地形成硬塗層、抗反射膜等，其次藉由磨邊、挖洞、鎖螺絲等而固定在框架，藉此而成為太陽眼鏡。 A hard coat layer, an anti-reflection film, and the like are appropriately formed on the surface, and then they are fixed to the frame by edging, digging, locking screws, etc., thereby becoming sunglasses.
框架的材質係例如可舉出賽璐珞(celluloid)、乙酸酯、聚醯胺等合成樹脂材料、以及龜甲(tortoiseshell)等天然材料等。將具有脂肪族骨架之耐綸樹脂使用於射出成型而成之偏光透鏡，係即便與纖維素系框架組合亦沒有白化等問題，而能夠適合使用。 Examples of the material of the frame include synthetic resin materials such as celloid, acetate, and polyamide, and natural materials such as tortoiseshell. A polarizing lens formed by using a nylon resin having an aliphatic skeleton for injection molding is suitable for use because it has no problems such as whitening even when combined with a cellulose-based frame.
以下，藉由實施例而更具體地說明本發明，但是本發明係不被如此的實施例限定。 Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited to such examples.
[實施例1] [Example 1]
<膽固醇型液晶層的製造> <Production of Cholesterol-type Liquid Crystal Layer>
使用由聚合性液晶單體(BASF公司製、商品名：LC242)40g、手性劑(BASF公司製、商品名：LC756)3g、光聚合起始劑(BASF公司製、商品名：IRGACURETPO)2g調製而成之塗佈液，依照下述程序而製造右旋的膽固醇型液晶層。此外，使用由聚合性液晶單體(BASF公司製、商品名：LC242)40g、手性劑(Merck公司製、商品名：S1080)9g、光聚合起始劑(BASF公司製、商品名：IRGACURETPO)2g調製而成之塗佈液，依照同樣的程序而製造左旋的膽固醇型液晶層。使用PET膜(東洋紡股份有限公司製、無易接著層)作為塑膠基板。 40 g of a polymerizable liquid crystal monomer (manufactured by BASF, trade name: LC242), 3 g of a chiral agent (manufactured by BASF, trade name: LC756), and 2 g of a photopolymerization initiator (manufactured by BASF, trade name: IRGACURETPO) The prepared coating liquid was produced into a right-handed cholesteric liquid crystal layer according to the following procedure. In addition, 40 g of a polymerizable liquid crystal monomer (manufactured by BASF, trade name: LC242), 9 g of a chiral agent (manufactured by Merck, trade name: S1080), and a photopolymerization initiator (manufactured by BASF, trade name: IRGACURETPO) were used. ) 2 g of the prepared coating liquid, and a left-handed cholesteric liquid crystal layer was produced according to the same procedure. As the plastic substrate, a PET film (manufactured by Toyobo Co., Ltd. without an easy-adhesive layer) was used.
(1)使用繞線棒(wire bar)，以使乾燥後的膜厚度成為4μm之方式，於室溫將塗佈液塗佈在PET膜上。 (1) A coating liquid was applied on a PET film at a room temperature so that the thickness of the film after drying was 4 μm using a wire bar.
(2)於150℃加熱5分鐘而除去溶劑。其次，將高壓水銀燈(HANSON東芝LIGHTING股份有限公司製)以120W 輸出功率進行UV照射5至10秒鐘，而得到膽固醇型液晶層。 (2) The solvent was removed by heating at 150 ° C for 5 minutes. Next, the high-pressure mercury lamp (manufactured by Hanson Toshiba Lighting Co., Ltd.) The output power was subjected to UV irradiation for 5 to 10 seconds to obtain a cholesteric liquid crystal layer.
(3)將PET膜剝離。 (3) Peel off the PET film.
如此進行而得到本發明所使用的膽固醇型液晶層。 In this way, a cholesteric liquid crystal layer used in the present invention is obtained.
<偏光元件的製造> <Manufacture of Polarizing Element>
將聚乙烯醇(Kuraray股份有限公司製造，商品名：Kuraray Vinylon#750)在含有氯冉亭堅牢紅(Chlorantine Fast Red)(C.I.28160)0.25g/L、直接凍黃(chrysophenine)(C.I.24895)0.18g/L、莎拉菲尼爾藍4GL(Solophenyl Blue 4GL)(C.I.34200)1.0g/L及硫酸鈉10g/L之水溶液中於35℃染色3分鐘之後，在溶液中延伸至4倍。隨後，將該染色片在含有乙酸鎳2.5g/及硼酸6.6g/L之水溶液中於35℃浸漬3分鐘。並且，在將該薄片保持為緊張狀態的狀態下，於室溫進行乾燥3分鐘之後，於70℃加熱處理3分鐘，而得到偏光元件。將偏光元件使用分光光度計且依據絕對偏光法測定偏光度，結果，偏光度為99.5%。 Polyvinyl alcohol (manufactured by Kuraray Co., Ltd., trade name: Kuraray Vinylon # 750) was added to Chlorantine Fast Red (CI28160) at 0.25 g / L, and chrysophenine (CI24895) After dyeing in an aqueous solution of 0.18 g / L, 1.0 g / L of Solophenyl Blue 4GL (CI34200) and 10 g / L of sodium sulfate at 35 ° C for 3 minutes, the solution was extended to 4 times in solution. Subsequently, this dyed sheet was immersed in an aqueous solution containing 2.5 g of nickel acetate and 6.6 g / L of boric acid at 35 ° C. for 3 minutes. After the sheet was kept in a tense state, it was dried at room temperature for 3 minutes, and then heated at 70 ° C for 3 minutes to obtain a polarizing element. Using a spectrophotometer with a polarizing element and measuring the degree of polarization according to the absolute polarization method, the degree of polarization was 99.5%.
<光學積層體的製造> <Production of optical laminated body>
將胺甲酸酯丙烯酸酯(日本化藥股份有限公司製、商品名：UX-4101)6g、丙烯酸4-羥基丁酯(大阪有機化學工業股份有限公司製、商品名：4-HBA)25g、丙烯酸四氫糠酯(大阪有機化學工業股份有限公司製、商品名：VISCOTE#150)20g、、丙烯酸異莰酯(大阪有機化學工業股份有限公司製、商品名：IBXA)10g、雙酚A型環氧樹脂(日本化藥股份有限公司製、商品名：RE-310S)30g、光聚合起始劑(日本化 藥股份有限公司製、商品名：DETX-S)3g、光聚合起始劑(川崎化成工業股份有限公司製、商品名：UVS-1331)0.1g、光聚合起始劑(BASF公司製、商品名：IRGACURE270)5g混合而製造無溶劑系紫外線硬化型接著劑。以該接著劑將前述膽固醇型液晶層與偏光元件貼合之後，使用高壓水銀燈在照度146mW/cm2、累計光量866mJ/cm2的條件下照射紫外線而得到硬化物。再者，隔著該接著劑以厚度約0.2mm之聚醯胺樹脂的支撐體(EMS公司製、商品名：Grilamid TR-90)予以挾持，同樣地照射紫外線，而得到本發明的光學積層體。 6 g of urethane acrylate (manufactured by Nippon Kayaku Co., Ltd., trade name: UX-4101), 25 g of 4-hydroxybutyl acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name: 4-HBA), 20 g of tetrahydrofurfuryl acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name: VISCOTE # 150), 10 g of isopropyl acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name: IBXA), bisphenol A type 30 g of epoxy resin (manufactured by Nippon Kayaku Co., Ltd., trade name: RE-310S), 3 g of photopolymerization initiator (manufactured by Nippon Kayaku Co., Ltd., trade name: DETX-S), photopolymerization initiator ( 0.1 g of Kawasaki Chemical Industry Co., Ltd., trade name: UVS-1331), and 5 g of a photopolymerization initiator (manufactured by BASF, trade name: IRGACURE270) were mixed to produce a solventless ultraviolet curing adhesive. After the aforementioned cholesteric liquid crystal layer and the polarizing element were bonded with the adhesive, a cured product was obtained by irradiating ultraviolet rays under the conditions of an illumination intensity of 146 mW / cm 2 and a cumulative light amount of 866 mJ / cm 2 using a high-pressure mercury lamp. Furthermore, a support of a polyamide resin (manufactured by EMS, trade name: Grilamid TR-90) having a thickness of about 0.2 mm was held through the adhesive, and ultraviolet rays were similarly irradiated to obtain the optical laminate of the present invention. .
將所得到的光學積層體，使用直徑79.5mm的正圓形且切割成垂直方向的寬度為55mm之鑄模進行沖切成條狀以作為基本形狀，並使用基準曲線(base curve)7.95(曲率半徑66.67mm)的模具於110℃的低溫進行彎曲加工，使膽固醇型液晶層側成為凸面。該光學積層體係具有良好的加工性，接著性亦良好，於80℃的水中浸漬1天亦不剝落。 The obtained optical laminated body was punched into a strip shape using a mold having a perfect circle with a diameter of 79.5 mm and a width of 55 mm cut in a vertical direction as a basic shape, and a base curve of 7.95 (radius of curvature 66.67mm) mold was bent at a low temperature of 110 ° C to make the side of the cholesterol-type liquid crystal layer a convex surface. The optical laminated system has good processability and good adhesion, and does not peel off even after being immersed in water at 80 ° C for one day.
[實施例2] [Example 2]
<偏光太陽眼鏡的製造> <Manufacture of polarized sunglasses>
將經實施例1所彎曲加工的光學積層體***至射出成形用模具內，將熔融的透明耐綸予以射出成形在凹面側，而得到偏光透鏡。其次，配合框架而進行磨邊，將該偏光透鏡嵌入纖維素系框架中，而製造偏光太陽眼鏡。 The optical laminated body subjected to the bending process in Example 1 was inserted into a mold for injection molding, and the molten transparent nylon was injection-molded on the concave side to obtain a polarized lens. Next, edging is performed in accordance with the frame, and the polarized lens is embedded in a cellulose-based frame to manufacture polarized sunglasses.
關於所製成的偏光太陽眼鏡，其中之聚醯 胺的支撐體與透明耐綸之接著性為良好，即便在80℃的水中浸漬1天亦不剝落。而且，亦未確認到框架白化。 About the Polarized Sunglasses Made The adhesion between the amine support and the transparent nylon was good, and it did not peel off even after being immersed in water at 80 ° C for one day. Furthermore, no whitening of the frame was confirmed.
[比較例1] [Comparative Example 1]
除了使用厚度0.3mm之聚碳酸酯的支撐體(三菱瓦斯化學股份有限公司製、雙酚A型芳香族聚碳酸酯)作為支撐體以外，係採用與實施例1及實施例2同樣的程序而製造比較用之偏光太陽眼鏡。 A procedure similar to that of Example 1 and Example 2 was used except that a support of 0.3 mm thick polycarbonate (Mitsubishi Gas Chemical Co., Ltd., bisphenol A-type aromatic polycarbonate) was used as the support. Make polarized sunglasses for comparison.
關於所製成的光學積層體，其在110℃的低溫下為加工性差，無法進行充分的彎曲加工，產生龜裂。 The manufactured optical laminate had poor workability at a low temperature of 110 ° C., and could not be sufficiently bent and cracked.
關於所製成的偏光太陽眼鏡，其中之聚碳酸酯的支撐體與透明耐綸的接著性差，在80℃的水中浸漬1天時會確認到在端部產生剝落。此外，與纖維素系框架進行組合時，確認到在接觸部有白化。 Regarding the produced polarized sunglasses, the support of polycarbonate and the transparent nylon had poor adhesion. When immersed in water at 80 ° C for 1 day, peeling was observed at the ends. In addition, when combined with a cellulose-based frame, whitening was confirmed at the contact portion.
[比較例2] [Comparative Example 2]
除了製造將作為接著劑之聚乙烯醇(日本合成化學工業股份有限公司製、商品名：Gohsenex Z200)6g、硬化劑(日本合成化學工業股份有限公司製、商品名：SPM-01)1.5g、純水100g混合而成之熱硬化型接著劑，並將其在80℃加熱處理10分鐘使其硬化以外，係採用與實施例1同樣的程序而製造比較用之光學積層體。 In addition to manufacturing 6 g of polyvinyl alcohol (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name: Gohsenex Z200) and 1.5 g of hardener (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., trade name: SPM-01), A thermosetting adhesive made by mixing 100 g of pure water and curing it at 80 ° C. for 10 minutes was used to produce an optical laminate for comparison using the same procedure as in Example 1.
關於所製成的光學積層體，其接著性差，在80℃的水中浸漬1天時會確認到有層間剝落。 The produced optical laminate had poor adhesion, and interlayer peeling was observed when immersed in water at 80 ° C for one day.
[比較例3] [Comparative Example 3]
除了使用厚度0.3mm之聚碳酸酯的支撐體(三菱瓦斯 化學股份有限公司製、雙酚A型芳香族聚碳酸酯)作為支撐體以外，係採用與比較例2同樣的程序而製造比較用之光學積層體。 In addition to using a 0.3mm thick polycarbonate support (Mitsubishi Gas Except for bisphenol A type aromatic polycarbonate (manufactured by Chemical Co., Ltd.), an optical laminated body for comparison was produced using the same procedure as in Comparative Example 2 except for the support.
關於所製成之光學積層體，其在110℃的低溫下為加工性差，無法進行充分的彎曲加工，產生龜裂。而且，接著性差，在80℃的水中浸漬1天時會確認到有層間剝落。 The manufactured optical laminate had poor workability at a low temperature of 110 ° C., and could not be sufficiently bent and cracked. In addition, the adhesion was poor, and interlaminar peeling was confirmed when immersed in water at 80 ° C for one day.
[比較例4] [Comparative Example 4]
除了「將作為接著劑之胺甲酸酯丙烯酸酯(日本化藥股份有限公司製、商品名：UX-4101)6g、單官能丙烯酸酯(大阪有機化學工業股份有限公司製、商品名：4-HBA)25g、環氧樹脂(日本化藥股份有限公司製、商品名：RE-310S)30g、光聚合起始劑(日本化藥股份有限公司製、商品名：DETX-S)3g、光聚合起始劑(川崎化成工業股份有限公司製、商品名：UVS-1331)0.1g、光聚合起始劑(BASF公司製、商品名：IRGACURE270)5g、溶劑(純正化學股份有限公司製、商品名：甲基乙基酮)40g混合而製造溶劑系紫外線硬化型接著劑，並將其在80℃加熱處理3分鐘之後，使用高壓水銀燈且在照度146mW/cm2、累計光量866mJ/cm2的條件下照射紫外線使其硬化」以外，係採用與實施例1同樣的程序而製造比較用之光學積層體。 In addition to "6 g of urethane acrylate (manufactured by Nippon Kayaku Co., Ltd., trade name: UX-4101) to be used as an adhesive, monofunctional acrylate (manufactured by Osaka Organic Chemical Industry Co., Ltd., trade name: 4- HBA) 25g, epoxy resin (manufactured by Nippon Kayaku Co., Ltd., trade name: RE-310S) 30g, photopolymerization initiator (manufactured by Nippon Kayaku Co., Ltd., trade name: DETX-S) 3g, photopolymerization 0.1 g of initiator (made by Kawasaki Chemical Industry Co., Ltd., trade name: UVS-1331), 5 g of photopolymerization initiator (manufactured by BASF, trade name: IRGACURE270), solvent (manufactured by Pure Chemical Co., Ltd., trade name) : 40 g of methyl ethyl ketone) were mixed to produce a solvent-based ultraviolet curing adhesive, and this was heat-treated at 80 ° C. for 3 minutes, and then a high-pressure mercury lamp was used under the conditions of illuminance of 146 mW / cm 2 and cumulative light amount of 866 mJ / cm 2 . Except that it was irradiated with ultraviolet rays to harden it, an optical laminated body for comparison was produced using the same procedure as in Example 1.
關於所製成之光學積層體，其接著性差，在80℃的水中浸漬1天時會確認到有層間剝落。而且，因由溶劑所引起之基材侵蝕，而確認到有白化。 The produced optical laminate had poor adhesion, and interlaminar peeling was observed when immersed in water at 80 ° C for one day. In addition, whitening was confirmed due to substrate corrosion caused by the solvent.
Claims (7)
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| CN (1) | CN111344612A (en) |
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| CN115427846A (en) * | 2020-04-07 | 2022-12-02 | 日本化药株式会社 | Optical film, and optical laminate and goggles having the same |
| WO2022196784A1 (en) | 2021-03-18 | 2022-09-22 | 日本化薬株式会社 | Optcal laminate and eyewear using same |
| TW202400407A (en) * | 2021-12-17 | 2024-01-01 | 日商三菱瓦斯化學股份有限公司 | polarizing sheet |
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| JPH11119167A (en) * | 1997-10-15 | 1999-04-30 | Nikon Corp | Combination of plural spectacle lenses varying in dioptry |
| JP2000304928A (en) * | 1999-04-21 | 2000-11-02 | Nippon Mitsubishi Oil Corp | Optical laminate |
| JP4583982B2 (en) * | 2004-03-23 | 2010-11-17 | 日東電工株式会社 | Polarizing plate, optical film and image display device |
| JP2013109116A (en) * | 2011-11-21 | 2013-06-06 | Konica Minolta Advanced Layers Inc | Method for manufacturing polarizing film protection film, polarizing film protection film, polarizing plate and liquid crystal display device using the same |
| US9303209B2 (en) * | 2012-07-11 | 2016-04-05 | Alphamicron Incorporated | Continuous wave directional emission liquid crystal structures and devices |
| JP6160237B2 (en) * | 2013-05-20 | 2017-07-12 | 大日本印刷株式会社 | Polarizing plate used in image display device, image display device, and method for improving bright place contrast in image display device |
| TWI657922B (en) * | 2014-04-03 | 2019-05-01 | 南韓商東友精細化工有限公司 | Polarizing plate and liquid crystal panel |
| US10120206B2 (en) * | 2014-07-01 | 2018-11-06 | Nippon Kayaku Kabushiki Kaisha | Optical film and optical laminate using same |
| KR102392232B1 (en) * | 2015-08-18 | 2022-04-28 | 스미또모 가가꾸 가부시끼가이샤 | Polarizing plate for curved image display panel |
| JP6408046B2 (en) * | 2016-02-17 | 2018-10-17 | 住友化学株式会社 | Photocurable adhesive, polarizing plate and laminated optical member using the same |
| JP6840733B2 (en) * | 2016-04-08 | 2021-03-10 | 日本化薬株式会社 | Optical film for eyewear, and optical laminates and eyewear using this |
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| WO2019116760A1 (en) | 2019-06-20 |
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