200827815 九、發明說明： 【發明所屬之技術領域】 本發明係有關用於著色隱形眼鏡之著色劑。尤其，本發 明係有關用於著色隱形眼鏡之色膏及其製造方法，以及使 用該色膏的隱形眼鏡之製程。 【先前技術】 隱形眼鏡是一種生活上極為方便的視力矯正裝置。尤其 對患有近視的人而言，為增進美觀，免除配戴一般眼鏡的 麻煩’常需要配戴隱形眼鏡。然而’由於一般隱形眼鏡為 透明無色，t造成配戴者需花時間尋找，因❿已知將隱形 眼鏡著色，整個鏡片可被淡淡地著色成為一種可見或定位 的色澤’方便配戴者能容易找出置於—具有澄清溶液之鏡 片儲藏盒内的鏡片，亦及提高鏡片的識別性。200827815 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a coloring agent for coloring contact lenses. In particular, the present invention relates to a color paste for coloring a contact lens, a method of manufacturing the same, and a process for using a contact lens of the color paste. [Prior Art] A contact lens is a vision correcting device that is extremely convenient in life. Especially for people with myopia, in order to improve the appearance and avoid the trouble of wearing ordinary glasses, it is often necessary to wear contact lenses. However, since the general contact lens is transparent and colorless, t causes the wearer to spend time looking for it. Because the contact lens is known to be colored, the entire lens can be lightly colored to become a visible or positioned color. Find the lens placed in the lens storage case with a clear solution, and improve the recognition of the lens.
用來製造著色鏡片之著色劑通常係由一種黏結聚合物 及顏料所組成。已知的著色劑需要使用交聯劑，使在鏡片 材料和黏結聚合物之間形成共價鍵，以形成穩定的著色鏡 ^所謂u的著色鏡片」係指染料不會自鏡片渗出或 溶出或自鏡片之一部份滲出或溶化至另一部份。 在-些形成著色隱形眼鏡的已知方法中，需要在著色劑 加入鏡片之前先形成鏡片本體，例如將製造鏡片的原料經 過充填、塑化、賴及水化等步驟之後，再將鏡片浸入以 食鹽水調配的染料溶液中，鏡片著色的深淺依染色時間、 處理溫度及染料溶液㈣度而決定。此方法的缺 鏡片著色的參數多，不易控制，例如鏡片二 326\專利說明書(補件)\95-12\TF954523 5 200827815 間控制需精準，否則顏色將過深或過淺，以及需在一定溫 度（例如60。〇下進行染色，定色效果才會較明顯。 此外’習知方法例如中華民國專利公告號565584，名 %為「製造染色眼用模製物之方法」，該方法使用溶劑將 粉狀染料溶解後加至鏡片原料中做成著色鏡片，但該鏡片 、、’二過水化步b及包裝滅菌後會有退色的情況，甚至無色。 【發明内容】 基於上述之習知形成著色隱形眼鏡之方法的缺點，本發 明之目的在於提供一種用於著色隱形眼鏡之色膏，其可精 準控制著色鏡的顏色，並且改良著色鏡片的定色效果。 本發明用於著色隱形眼鏡之色膏包含色粉、樹脂、溶劑 ft散劑。其中’色粉可選自反應藍4號色粉、反應藍 9就色粉及反應藍21號色粉；樹脂可選自丙烯酸樹脂及 祕樹脂；溶劑可使用丙二醇單甲基_乙酸§旨（pgmea) :二丙酮醇（ΜΑ)之組合’或者使用丙二醇單乙基醚乙 =旨與環己鲷之組合；及分散劑為含有胺基之親油性界面 以下說明本發明用於著色隱形眼鏡之色膏的製造方 :?字色粉、樹脂、溶劑及分散劑放入球磨機之研磨罐中， Ζ時間大約12小時，然後取樣進行粒徑分析，較佳平 ::小於1微米’假如所量測的平均粒徑過大，則增加 ::，降低其平均粒徑。此外，設若色膏黏度不足，可 曰加色粉或樹脂的含量以增加其黏度。 接者’說明使用本發明$暮 乃邑㈢的隱形眼鏡之製程，其包含 326\專利說明書(補件)\95-12\TF954523 6 200827815 以下步驟： (a) 提供本發明之色嘗； (b) 提供製造隱形眼鏡片之聚合物單體； (c )混合色膏和聚合物單體，以形成有色之預聚合物· (d) 將呈流體狀之預聚合物注入母模（或稱凹面塑膠模 具）’然後壓合公模（或稱凸面塑膠模具）與具有預聚合物 之母模； σ (e) 進行一塑化程序； (〇冷卻公模與母模内的隱形眼鏡片，再取出隱形眼鏡 片； " (g)將取出的隱形眼鏡片置入水化盒，然後對隱形眼鏡 片進行水化程序1至2次；及 (h )對_形眼鏡片進行一密封包裝。 為讓本發明之上述與其他目的、特徵和優點能更明顯易 懂，以下特舉較佳實施例作詳細說明。 【實施方式】 本發明一較佳實施例之一種用於著色隱形眼鏡之色膏 ，，造方法，將反應藍4號色粉50重量百分比、丙烯酸 树月曰10重置百分比、丙二醇單甲基醚乙酸酯2〇重量百分 比2 一丙酮醇10重量百分比及含有胺基之親油性界面活 f生d 1 〇重1百分比放入球磨機之研磨罐中，研磨時間大 約12小時’而研磨方式可採間歇動作，例如研磨15分鐘、 停頓15分鐘’或者採連續動作進行。完成研磨操作後， 取樣進行粒徑分析，較佳平均粒徑小於i微米，假如所量 326\專利說明書(補件)\95-12\TF954523 7 200827815 測的平均粒徑過大，則增加含有胺基之親油性界面活性劑 以降低其平均粒徑。此外，設若色膏黏度不足，則增加丙 烯酸樹脂的含量以增加其黏度。 本备明-較佳貫施例之一種使用本發明色膏的隱形眼 鏡之製程，其包含以下步驟：首先，提供本發明之色膏及 製造隱形眼鏡片之液狀聚合物單體，將色膏與 鏡片之液狀聚合物單體㈣均勾，以形成有色之預；： 物’接著將呈流體狀之預聚合物注入母模（或稱凹面塑膠 杈具）’然後壓合公模（或稱凸面塑膠模具）與具有預聚人 物之母模，然:後以塑化程序來製成隱形眼鏡片，亦即將口堡 合後之呈流體狀之預聚合物置於如熱風箱中，以特定溫度 之ί風供烤—預料間使固化後，以形成-隱形眼鏡 接著利用室溫來冷卻公模與母模内的隱形眼鏡片，之 =工或脫模裝置來取出隱形眼鏡片，將取出的隱形眼鏡 片置入水化盒，然後對隱形眼鏡片進行水化程序丨至2 次’亦即浸泡於-緩衝溶液中，使隱料鏡片吸水後 形成-水膠，並萃取及料色膏殘留之物質，在水化The colorant used to make the colored lens is usually composed of a cemented polymer and a pigment. Known colorants require the use of a cross-linking agent to form a covalent bond between the lens material and the binder polymer to form a stable color-changing lens. The so-called u-colored lens means that the dye does not bleed out or dissolve from the lens. Or ooze or dissolve from one part of the lens to another part. In some known methods of forming colored contact lenses, it is necessary to form a lens body before the colorant is added to the lens, for example, after the steps of filling, plasticizing, hydrating, and the like are performed, the lens is immersed in the lens. In the dye solution prepared by the saline solution, the depth of the lens coloration is determined by the dyeing time, the treatment temperature, and the dye solution (four degrees). This method lacks many parameters for lens coloring and is difficult to control. For example, the control of lens 2 326\patent specification (supplement)\95-12\TF954523 5 200827815 needs to be precise, otherwise the color will be too deep or too shallow, and it must be certain Temperature (for example, 60. Under the sputum, the color fixing effect will be more obvious. Moreover, the conventional method is, for example, the Republic of China Patent Publication No. 565584, the name % is "method of manufacturing a dyed ophthalmic molding", which uses a solvent The powdered dye is dissolved and added to the lens material to form a colored lens, but the lens, the 'two-passing step b and the package may be discolored after being sterilized, or even colorless. [Invention] Based on the above-mentioned conventional knowledge Disadvantages of the method of forming colored contact lenses, the object of the present invention is to provide a color paste for coloring contact lenses, which can precisely control the color of the coloring mirror and improve the color fixing effect of the colored lens. The present invention is used for coloring contact lenses. The color paste comprises a toner, a resin and a solvent ft powder, wherein the 'toner powder can be selected from the reaction blue No. 4 toner, the reaction blue 9 toner and the reaction blue No. 21 toner; the resin can be It is selected from the group consisting of acrylic resin and secret resin; the solvent can be propylene glycol monomethyl-acetic acid § (pgmea): a combination of diacetone alcohol (ΜΑ) or a combination of propylene glycol monoethyl ether B and cyclohexanone; The dispersing agent is an oleophilic interface containing an amine group. Hereinafter, the manufacturer of the coloring paste for coloring contact lenses of the present invention will be described. The color powder, the resin, the solvent and the dispersing agent are placed in a grinding pot of a ball mill for about 12 hours. Then, sample for particle size analysis, preferably flat:: less than 1 micron. 'If the average particle size measured is too large, increase::, reduce the average particle size. In addition, if the viscosity of the color paste is insufficient, it can add color. The content of the powder or the resin is increased to increase the viscosity. The following describes the process of using the contact lens of the present invention, which includes the 326\patent specification (supplement)\95-12\TF954523 6 200827815. a) providing the color taste of the present invention; (b) providing a polymer monomer for making a contact lens; (c) mixing the color paste and the polymer monomer to form a colored prepolymer. (d) will be in the form of a fluid The prepolymer is injected into the master mold (or concave) Plastic mold) 'then press the male mold (or convex plastic mold) and the master mold with prepolymer; σ (e) to carry out a plasticizing process; (〇 cooling the male mold and the contact lens in the female mold, then Taking out the contact lens; " (g) placing the taken contact lens into the hydration box, then hydrating the contact lens 1 to 2 times; and (h) sealing the _ lens. The above and other objects, features and advantages of the present invention will become more apparent from the description of the preferred embodiments. Paste, method of preparation, 50% by weight of Reactive Blue No. 4 toner, 10% by weight of acrylic tree, 10% by weight of propylene glycol monomethyl ether acetate, 2% by weight of acetone, and 10% by weight of acetol The lipophilic interface is a d 1 〇 weight 1% placed in the grinding pot of the ball mill, the grinding time is about 12 hours 'and the grinding method can be intermittent operation, such as grinding for 15 minutes, pause for 15 minutes' or continuous action. After the grinding operation is completed, the sample is subjected to particle size analysis, and the preferred average particle diameter is less than i micrometer. If the average particle diameter measured by the amount 326\patent specification (supplement)\95-12\TF954523 7 200827815 is too large, the amine is increased. A oleophilic surfactant to reduce its average particle size. In addition, if the viscosity of the color paste is insufficient, the content of the acrylic resin is increased to increase the viscosity. The present invention provides a process for using a contact lens using the color paste of the present invention, which comprises the steps of: firstly, providing a color paste of the present invention and a liquid polymer monomer for manufacturing a contact lens; The liquid polymer monomer (4) of the paste and the lens are hooked to form a colored pre-form; the object 'then then injects the fluid-like pre-polymer into the master mold (or concave plastic cookware)' and then presses the male mold ( Or a convex plastic mold) and a master mold with pre-aggregated characters. However, the plastic lens is used to make a contact lens, and the fluid-like prepolymer is placed in a hot bellows. a specific temperature of the wind for baking - expected to be cured after the formation of - contact lenses and then use room temperature to cool the contact lens in the male and female molds, the work or demoulding device to remove the contact lens, will The removed contact lens is placed in a hydration box, and then the contact lens is subjected to a hydration process to 2 times, that is, immersed in a buffer solution, so that the hidden lens absorbs water to form a water gel, and is extracted and colored. Glue residue, in hydration
=躲出隱形眼鏡片，並置放於_眼鏡包t盒以 禮、封包裝。 J 本發明將色粉、樹脂、溶劑及分散劑預先做成膏狀，I 下優點：方便使用，可以直接溶於液狀鏡片原料直 接此δ，使用色膏製造著色隱形眼鏡之所有作業可以 眼鏡鏡片製造流程進行而無需增加額外流程心 顏色深淺由加人色膏濃度來控制，影響操作參數少，= 3抓專利說明書(補件)\95-12\TF954523 g 200827815 易控制，而且定色效果佳。 /= Hide the contact lens and place it in the _ glasses case t box for gift and sealing. J The invention preliminarily forms a toner, a resin, a solvent and a dispersing agent into a paste, and has the advantages of being convenient to use, and can be directly dissolved in the liquid lens material directly to the δ, and all the operations for producing the colored contact lens by using the color paste can be used for the glasses. The lens manufacturing process is carried out without adding extra process. The color depth is controlled by the concentration of the added color paste, which affects the operating parameters. 3 Patent Plan (Supplement)\95-12\TF954523 g 200827815 Easy to control, and the color fixing effect good. /
326\ 專利說明書(補件)\95-12\TF954523 9326\ Patent Specification (Repair)\95-12\TF954523 9