1274065 九、發明說明：【發明所屬之技術領域】 本發明係關於一種塗佈方法 95年9月25日申復修正修正本 質之塗佈方法。 特別是關於一種有機介 【先前技術】 旦面對愈來愈龐大的影音資訊量，提高光碟的資料容 直，一直是產業界追求的目標。而Dv〇因為具有比CD更 ♦大的資料儲存容量’因此已於光儲存媒體市場上佔有一定 的比例。目刖的DVD具有不同的外觀型式，從單面單層 (single side single layer)、雙面單層（dual 如咖 layer )、單面雙層（single side dual layer )到雙面雙層（dual1274065 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a coating method for applying a modified correction substance on September 25, 1995. Especially with regard to an organic medium [Prior Art] Once the face of the ever-increasing amount of video and audio information, improving the data tolerance of optical discs has always been the goal pursued by the industry. Dv〇 has a certain proportion in the optical storage media market because it has a larger data storage capacity than CD. The witnessed DVDs have different appearances, from single side single layer, double layer single layer (dual coffee layer), single side dual layer to double sided double layer (dual
side dual layer)，它們的儲存容量範圍也從4 7Gb到17GB 不等。 具有8.5GB容量之單面雙層DVD-R，由於容量大， 再加上可寫一次的結構，也愈來愈受到市場重視。如圖1 β所示，習知的單面雙層DVD-R碟片10，係含有一第一基 板 11、一 第一記錄積層（first recording stack，L〇) 12、一間 隔層 13、一 第二記錄積層（second recording stack，14、 及一第二基板15。其中，第一記錄積層（first recording stack， L〇)12 及第二記錄積層（second recording stack，LD 14 係塗 佈在第一基板11和第二基板15之資料面上，且間隔層13 夾置在第一記錄積層12及第二記錄積層14之間。一般而 言，第^ ^記錄積層12及弟二記錄積層14均分別包含^ §己 95年9月25日申復修正修正本 1274065 錄層一反射層。當資料讀取時，雷射光可穿過第一基板11 聚焦於第一記錄積層12，或穿過間隔層13以聚焦於第二 記錄積層14。 對習知技術中，資料儲存容量較大之單面雙層DVD_R 碟片20而言，製造的方式有兩種，一種是光聚合製程 (Photo-Polymerization Process，2P Process)，另一種則是黏 合製程（Bonding process)，又稱反轉製程(Inversed Stack Process)，以下將對前述兩種製程作一簡單介紹： # 1·光聚合製程：請參照圖2，其係於一具有預刻執槽 (pre-grooved)之第基板21上，依次旋轉塗佈 (Spin-coating)—第一記錄層22及一第一反射層23。於 第一反射層23及碟片模版(disc stamper) 24上喷塗光固 膠(photo-setting resin)25後，將碟片模版24壓合至第 一反射層23上。經過光照射固化膠體後，即形成一間 隔層26。接著，剝除磉片模版24，即可於間隔層26 上形成預刻溝槽。旋轉塗佈一第二記錄層27及一第二 ^ 反射層28於間隔層26。最後，再黏合一第二基板29， 即完成碟片之製作。 2·黏合製程：請參照圖3，其係於一具有預軌溝 (pre-grooved)之第一基板21上，依次形成一記錄層22 及一第一反射層23 ;並於一具有預執溝之第二基板29 上，依次形成一第二反射層28及一第二記錄層27。接 著，利用光固膠25黏合第一反射層23與第二記錄層 27，最後再固化光固膠25，以形成一間隔層26，即完 成碟片之製作。 95年9月25曰申復修正修正本 進行塗:製::記?層及光固膠25大多為有機付質，當 面、碟以=面=佈至無機表面（例如是反射層表 錄層及光固膠:5不同：f塗佈至有機表面但是有著與記 的性質不同，而迭成二，可能因為二種材質之間 Z高，進而容易剝ί'ί之記錄層或光_層之附著性 另外，於進行* 〜光資訊儲存顧之品質不佳。 •、或是水基:表面可能_ 有機介質之均勾性 溶劑等等，均會影響後續塗佈 有鑑於上述課題，本牵 訊儲存媒體巾有機=狀亟思―種可以解決光資 造成之易㈣等問題之性f的材質表面時所 ]蟪之有機介質塗佈方法」。 【發明内容】 有鐘於上述課題，本蘇 質表面上畫佈有機介質心 6、為提供1於不同性 、 貝之有機介質塗佈方法。 緣是，為達上述目的 法，其係包含以—溶齊二:本，之有機介質塗佈方 質於表面。—·以及塗你-有機介 承上所：依本發明之有機介質塗佈方法，俾 有機介質摻觸之表面不同，而搭配不同的溶劑=與 有機介質：利用溶劑對表面進行細步驟。：， 技術相比，料明之有機介質塗怖方法，不但有^知 1274065 95年9月25日申復修正修正本 質所塗佈之表面進行清潔以去除污染微粒、並能去除表面 吸附空氣中之溶劑或水份、更能進行預濕處理，使得有機 介質與表面之附著力提高。如此一來，即可提昇光資訊儲 存媒體之品質。 【實施方式】 以下將參照相關圖式，說明依本發明之有機介質塗佈 方法之數個較佳實施例。 如圖4所示，有機介質塗佈方法係包含下列步驟：以 一溶劑預浸潤一表面（S100)、塗佈一有機介質於表面 (S200)。本實施例中，係以將有機介質塗佈方法實施於 光資訊儲存媒體為例。 有機介質之塗佈係用以形成一記錄層、或一間隔層， 塗佈之方法可為喷塗、旋轉塗佈等常見之塗佈方法，其 中，記錄層之材質可為一有機染料（Organic Dye)，間隔 層之材質可為一光固膠。 於步驟S100中，係以一溶劑預浸潤一表面。於步驟 S200中，塗佈一有機介質於表面。其中，預浸潤所使用的 溶劑S種類，係會隨著與有機介質R接觸之表面31的特 性（例如極性大小、有機或無機）而配合使用不同的種類。 以下，係依有機介質之材質而分成不同的實施態樣來說明 本發明之有機介質塗佈方法。 第一實施例 再請參考圖2，於光聚合（2P)製程中，有機染料係 1274065 95年9月25日申復修正修正本 分別塗佈至一第一基板21及一間隔層26上以形成一第一 記錄層22及一第二記錄層27。由於第一基板21之材質常 _ 為具高極性之有機材質，例如壓克力，故於塗佈前則利用 具有羧基（-COOH)、羥基（-OH)或羰基（_CO)之溶劑 、 來進行預浸潤，以增進有機染料對第一基板21之附著性。 其中，具有羧基、羥基或羰基之溶劑可為醛類、酮類、酯 類、或醇類，例如是丙S同（Acetone )、四氟丙醇 (2,2,3,3，-tetrafluo-1-propanol，TFP，C3F4H4〇 )、或八氟戊醇 φ ( 〇ctafluro_l-pentanol，OFP，C5F8H40 )。另外，由於有機染 料與間隔層26均為有機物質，因此彼此間可具有較佳之 附著性，故也可不需要預浸潤步驟。 第二實施例 請參照圖3，於反轉（Inverse stack)製程中，有機染 料則分別塗佈至第一基板21及第二反射層28上以形成第 一記錄層22及第二記錄層27。其中，於第一基板21上預 浸潤並塗佈有機染料已於第一實施例中說明，於此不再贅 述。 本實施例中，有機染料係塗佈至第二反射層28之表 - 面。其中第二反射層28之材質為金屬、或其表面生成金 _ 屬氧化物。於塗佈前則利用具有羧基（-COOH)、羥基（-OH) 或羰基（-CO)之溶劑來進行預浸潤，以增進有機染料對 第二反射層28之附著性。其中，具有羧基、羥基或羰基 之溶劑可為醛類、酮類、酯類、或醇類，例如是丙酮 (Acetone)、四氟丙醇（2,2,3,3，_tetrafluo-l-propanol，TFP， 1274065 95年9月25日申復修正修正本 C3F4H40)、或八氟戊醇（Qctaflur〇q pent獅^ 〇Fp， C5F8H40 )。 、 篇三實施例 • 本貫施例中，有機介質之材質係以光固膠為例。再請 、 芩照圖2，於光聚合製程中，光固膠25係分別塗佈至一碟 - 片模版24及一第一反射層23上以固化形成一間隔層26。 由於螺片模版24之材質為具低極性或具芳香族之有機材 質’例如為聚碳酸醋（Polycarbonate，PC)、或環烯烴聚合 鲁物（Cyclo Olefin Polymer, COP )，故可於塗佈前則利用苯 (Benzene)、甲苯（Toluene)、二曱苯（xyiene)、四氯化 碳（Carbon Tetrachloride)、或二硫化碳（Carbon Disulfide) 等溶劑來進行碟片模版24表面之預浸潤，以去除污染微 粒、及表面吸附之溶劑或水氣，進而能提昇光固膠25與 碟片模版24表面之塗佈均勻性。 另外，由於第一反射層23之材質為金屬、或金屬氧 化物。於塗佈前則利用具有羧基（-COOH)、羥基（-OH) ¥或羰基（-CO)之溶劑來進行預浸潤，以增進間隔層26對 第一反射層23之附著性。其中，具有羧基、羥基或羰基 - 之溶劑可為醛類、酮類、酯類、或醇類，例如是丙酮 (Acetone )、四氟丙醇（2,2,3,3，_tetrafluo-l-propanol，TFP， C3F4H40)、或八氣戊醇（Octafluro-l-pentanol，OFP， C5F8H40 )。 第四實施例 請參照圖3，於反轉製程中，光固膠25係分別塗佈至 95年9月25日申復修正修正本 1274065 第一反射層23及第二記錄層27上疊合後固化以形成一間 隔層26。其中，塗佈光固膠25於一反射層表面所作的預 浸潤步驟係與第三實施例相同，於此不再贅述。 另外，光固膠25塗佈於第二記錄層27時，由於光固 膠25及第二記錄層27均為有機物質，因此彼此間可具有 較佳之附著性，故也可不需要預浸潤步驟。 綜上所述，本發明之有機介質塗佈方法，係依與有機 介質接觸之表面不同，而搭配不同的溶劑，以於塗佈有機 _介質之前，利用溶劑對表面進行預浸潤步驟。與習知技術 相比，本發明之有機介質塗佈方法，不但可對有機介質所 塗佈之表面進行清潔以去除污染微粒、並能去除表面吸附 空氣中之溶劑或水份、更能進行預濕處理，使得有機介質 與表面之附著力提高。如此一來，即可提昇光資訊儲存媒 體之品質。 以上所述僅為舉例性，而非為限制性者。任何未脫離 本發明之精神與範疇，而對其進行之等效修改或變更，均 ¥應包含於後附之申請專利範圍中。 【圖式簡單說明】 圖1係為習知單面雙層DVD-R碟片之一示意圖； 圖2係為習知利用光聚合製程以製作單面雙層DVD-R 碟片之一示意圖； 圖3係為習知利用反轉製程以製作單面雙層DVD-R 碟片之一示意圖；以及 11 95年9月25日申復修正修正本 1274065 圖4係為本發明有機介質塗佈方法之一流程示意圖。 元件符號說明： 10 單面雙層DVD-R碟片 11 第一基板 12 第一記錄積層 13 間隔層 14 第二記錄積層 15 弟二基板 20 單面雙層DVD-R碟片 21 第一基板 22 第一記錄層 23 第一反射層 24 碟片模版 25 光固膠 26 間隔層 •27 第二記錄層 28 第二反射層 29 第二基板 S100 以一溶劑預浸潤一表面 S200 塗佈一有機介質於表面 L〇 第一記錄積層 L1 第二記錄積層 12Side dual layer), their storage capacity ranges from 4 7Gb to 17GB. The single-sided double-layer DVD-R with 8.5GB capacity is getting more and more attention from the market due to its large capacity and the structure that can be written once. As shown in FIG. 1β, a conventional single-sided double-layer DVD-R disc 10 includes a first substrate 11, a first recording stack (L) 12, a spacer layer 13, and a first substrate. a second recording stack (14) and a second substrate 15. The first recording stack (L) 12 and the second recording stack (second 14) are coated in the first The substrate 11 and the second substrate 15 are on the data side, and the spacer layer 13 is interposed between the first recording layer 12 and the second recording layer 14. In general, the first recording layer 12 and the second recording layer 14 are Each of them contains a reflective layer of the recording layer of the 1274065, which is corrected on September 25, 1995. When the data is read, the laser light can be focused on the first recording layer 12 through the first substrate 11, or through The spacer layer 13 is focused on the second recording layer 14. In the prior art, the single-sided double-layer DVD_R disc 20 having a large data storage capacity is manufactured in two ways, one is a photopolymerization process (Photo- Polymerization Process, 2P Process), another is the bonding process (Bonding process), also known as Inversed Stack Process, the following two processes will be briefly introduced: # 1·Photopolymerization process: Please refer to Figure 2, which is attached to a pre-etched groove ( On the first substrate 21 of the pre-grooved, spin-coating-first recording layer 22 and a first reflective layer 23 are sequentially applied to the first reflective layer 23 and the disc stamper 24. After the photo-setting resin 25 is applied, the disc stencil 24 is pressed onto the first reflective layer 23. After the colloid is cured by light irradiation, a spacer layer 26 is formed. Next, the stencil sheet 24 is peeled off. The pre-groove can be formed on the spacer layer 26. A second recording layer 27 and a second reflective layer 28 are spin-coated on the spacer layer 26. Finally, a second substrate 29 is bonded, that is, the disc is completed. 2. The bonding process: please refer to FIG. 3, which is formed on a pre-grooved first substrate 21, and sequentially forms a recording layer 22 and a first reflective layer 23; A second reflective layer 28 and a second recording layer 27 are sequentially formed on the second substrate 29 having the pre-groove. Next, The first reflective layer 23 and the second recording layer 27 are bonded by the photo-curing adhesive 25, and finally the photo-curable adhesive 25 is cured to form a spacer layer 26, that is, the production of the disc is completed. This coating: system:: recording layer and photo-curing glue 25 are mostly organic, quality, surface, dish = surface = cloth to inorganic surface (for example, reflective layer surface layer and light-solid glue: 5 different: f coating Cloth to the organic surface but different from the nature of the note, and the overlap is two, probably because the Z between the two materials is high, and thus it is easy to peel off the adhesion of the recording layer or the light layer. In addition, the light is carried out* The quality of information storage is not good. • or water-based: surface may _ organic solvent, etc., will affect the subsequent coating. In view of the above issues, the information storage media towel organic = shape thinking - can solve the problem caused by light Easy (four) and other issues of the nature of the material surface of the material f] SUMMARY OF THE INVENTION In view of the above problems, an organic medium core 6 is formed on the surface of the present surface, and an organic medium coating method for providing different properties and shells is provided. The reason is that, in order to achieve the above-mentioned purpose, the method comprises the method of coating the organic medium on the surface. —·· 涂 涂 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 :, compared with the technology, the method of coating the organic medium is not only known, but also the surface coated by the application of the modified nature of the correction on September 25, 1995 to remove the contaminated particles and remove the surface adsorbed air. Solvent or moisture, more pre-wet treatment, so that the adhesion of the organic medium to the surface is improved. In this way, the quality of the optical information storage medium can be improved. [Embodiment] Several preferred embodiments of the organic medium coating method according to the present invention will be described below with reference to the related drawings. As shown in Fig. 4, the organic medium coating method comprises the steps of: pre-wetting a surface with a solvent (S100), and coating an organic medium on the surface (S200). In this embodiment, an organic medium coating method is applied to an optical information storage medium as an example. The coating of the organic medium is used to form a recording layer or a spacer layer. The coating method can be a common coating method such as spraying or spin coating. The material of the recording layer can be an organic dye (Organic). Dye), the material of the spacer layer can be a light-solid glue. In step S100, a surface is pre-soaked with a solvent. In step S200, an organic medium is applied to the surface. Among them, the type of the solvent S used for the pre-wetting is different depending on the characteristics of the surface 31 (e.g., polarity, organic or inorganic) which is in contact with the organic medium R. Hereinafter, the organic medium coating method of the present invention will be described by dividing into different embodiments depending on the material of the organic medium. First Embodiment Referring again to FIG. 2, in the photopolymerization (2P) process, the organic dye system 1274065 is applied to a first substrate 21 and a spacer layer 26 respectively on September 25, 1995. A first recording layer 22 and a second recording layer 27 are formed. Since the material of the first substrate 21 is often an organic material having a high polarity, such as acrylic, a solvent having a carboxyl group (-COOH), a hydroxyl group (-OH) or a carbonyl group (_CO) is used before coating. Pre-wetting is performed to enhance the adhesion of the organic dye to the first substrate 21. Wherein, the solvent having a carboxyl group, a hydroxyl group or a carbonyl group may be an aldehyde, a ketone, an ester, or an alcohol, for example, Acetone or tetrafluoropropanol (2,2,3,3,-tetrafluo- 1-propanol, TFP, C3F4H4〇), or octafluoropentanol φ (〇ctafluro_l-pentanol, OFP, C5F8H40). Further, since the organic dye and the spacer layer 26 are both organic substances, they have better adhesion to each other, so that the pre-wetting step is not required. Second Embodiment Referring to FIG. 3, in an inverse stack process, an organic dye is applied to the first substrate 21 and the second reflective layer 28, respectively, to form a first recording layer 22 and a second recording layer 27. . Among them, the pre-wetting and coating of the organic dye on the first substrate 21 has been described in the first embodiment, and will not be described again. In the present embodiment, the organic dye is applied to the surface of the second reflective layer 28. The material of the second reflective layer 28 is a metal or a surface thereof to form a gold oxide. Pre-wetting is carried out by using a solvent having a carboxyl group (-COOH), a hydroxyl group (-OH) or a carbonyl group (-CO) before coating to improve the adhesion of the organic dye to the second reflective layer 28. Wherein, the solvent having a carboxyl group, a hydroxyl group or a carbonyl group may be an aldehyde, a ketone, an ester, or an alcohol, such as acetone (Acetone) or tetrafluoropropanol (2, 2, 3, 3, _tetrafluo-l-propanol) , TFP, 1274065 September 25, 1995, apply for amendments to correct this C3F4H40), or octafluoropentanol (Qctaflur〇q pent lion ^ 〇 Fp, C5F8H40). 3rd Example • In this example, the material of the organic medium is exemplified by photo-curing glue. Referring to FIG. 2, in the photopolymerization process, the photo-curable adhesive 25 is applied to a disc-sheet stencil 24 and a first reflective layer 23 to form a spacer layer 26. Since the material of the screw stencil 24 is a low polarity or aromatic organic material, such as polycarbonate (PC) or Cyclo Olefin Polymer (COP), it can be applied before coating. Then, a solvent such as Benzene, Toluene, xyiene, Carbon Tetrachloride, or Carbon Disulfide is used to pre-wet the surface of the disc stencil 24 to remove the contamination. The particles, and the solvent or moisture adsorbed on the surface, can further improve the coating uniformity of the surface of the photo-curing paste 25 and the disc stencil 24. Further, since the material of the first reflective layer 23 is a metal or a metal oxide. Pre-wetting is carried out by using a solvent having a carboxyl group (-COOH), a hydroxyl group (-OH), or a carbonyl group (-CO) before coating to improve the adhesion of the spacer layer 26 to the first reflective layer 23. Wherein, the solvent having a carboxyl group, a hydroxyl group or a carbonyl group may be an aldehyde, a ketone, an ester, or an alcohol, such as acetone (Acetone) or tetrafluoropropanol (2, 2, 3, 3, _tetrafluo-l- Propanol, TFP, C3F4H40), or Octafluro-l-pentanol (OFP, C5F8H40). For the fourth embodiment, please refer to FIG. 3. In the inversion process, the photo-curable adhesive 25 is applied to the first reflective layer 23 and the second recording layer 27 on September 25, 1995, respectively. Post curing to form a spacer layer 26. The pre-wetting step of coating the photo-curing adhesive 25 on the surface of a reflective layer is the same as that of the third embodiment, and details are not described herein. Further, when the photo-curing paste 25 is applied to the second recording layer 27, since both the photo-curable 25 and the second recording layer 27 are organic substances, they have better adhesion to each other, so that the pre-wetting step is not required. In summary, the organic medium coating method of the present invention is based on a surface which is in contact with an organic medium, and is mixed with a different solvent to pre-soak the surface with a solvent before applying the organic medium. Compared with the prior art, the organic medium coating method of the invention can not only clean the surface coated by the organic medium to remove the contaminated particles, but also remove the solvent or water in the air adsorbed on the surface, and can further pre-predict Wet treatment increases the adhesion of the organic medium to the surface. In this way, the quality of the optical information storage medium can be improved. The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a conventional single-sided double-layer DVD-R disc; FIG. 2 is a schematic view showing a single-sided double-layer DVD-R disc using a photopolymerization process; 3 is a schematic view showing a conventional one-sided double-layer DVD-R disc using an inversion process; and September 25, 1995, a reply correction correction 1274056. FIG. 4 is an organic medium coating method of the present invention. A schematic diagram of the process. DESCRIPTION OF REFERENCE NUMERALS: 10 single-sided double-layer DVD-R disc 11 first substrate 12 first recording layer 13 spacer layer 14 second recording layer 15 second substrate 20 single-sided double-layer DVD-R disc 21 first substrate 22 First recording layer 23 first reflective layer 24 disc stencil 25 photo-curing adhesive 26 spacer layer 27 second recording layer 28 second reflective layer 29 second substrate S100 pre-soaked with a solvent a surface S200 coated with an organic medium Surface L〇 first recording layer L1 second recording layer 12