TW440827B - Optical recording medium compsed of phthalocyanine - Google Patents

Abstract

An optical recording medium is disclosed, which comprises a transparent substrate, a recording layer comprised of an organic dye and additives, a reflective layer, and a polymer protective layer. The said recording layer is formed by spin coating. A dye solution comprising of Phthalocyanine and additive is used for coating process and the additive can improves the properties of medium such as jitter, error rate, and lightfastness.

Description

440827 -i ^ __ 88l〇1951_ year, month and year_ 5. Description of the invention (1) Field of the invention: The present invention relates to an optical recording medium, in particular, a pigment-containing film layer is used as a recording layer, and a metal reflective layer is provided thereon. And a polymer protective layer, which can record large-capacity information and can be completed by a commercially available recordable optical disc recorder. Background of the invention: In recent years, with the rapid development of information clubs, optical recording media that can record a large amount of data have become the new darling in the market. According to the current light on the market, there are about two types of media that are more valuable. , One is the information recording and i +, A,, _ y ^ and reproduction optical recording media that can be implemented by users; the other is the information recording, _ 4, *, Α ^ regeneration and elimination The write-once optical recording medium, and the price of the write-once type is ^ ^ .. ^, which is relatively cheap and has good preservation. Therefore, it is widely sought after by the public for its own optical recording media, phthalocyanine, etc. The pigment film light causes the recording layer to generate chemical information and then regenerates the cavity. The body has a metal film such as Te or Bi or a cyanine as a recording layer provided on the substrate, and a cavity is formed by irradiating the laser and physical changes, so that the laser light with a small energy is read out and recorded into a recordable light. § Recorded media require practicality and durability. Practicality: its performance of light and characteristics can meet the standard specifications of optical recording media, and its optical reflectivity is high, its network modulation (Modulation) is high, and its jitter rate (j 11ter) value is small. Light resistance refers to the good light resistance of the recording layer. The pigment of the recording layer is not easy to be secreted by long-term light irradiation. ^ Know about the light-sensitive pigments, which make phthaiocyanine

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V. Description of the invention (2) The pigment is a recording layer pigment, and a polar solvent is used as a dye solvent. The layer does not provide a better one, that is, a better optical feature. The purpose and summary of the invention: A recording layer is sequentially provided, and the layer is made of a phthalocyanine blue polar solvent and an auxiliary solvent and an additive. Another purpose of this creation is to reduce its jitter rate to extend the warranty. The specific implementation purpose, technical content, and special details are described below: Correction and production of recordable optical recording media, and use of non-rotation coating method to form the recording layer; Optical properties of this record, such as jitter rate. Therefore, the invention is an optical recording medium. 'Provide an optical recording medium in the US reflective layer and protective layer', where the above-mentioned agent i is formed by coating method and in this solvent 'is to provide a light that can increase light resistance and reduce life. Recording media. The examples are explained in detail 'when it is easier to understand the present invention and its effect. The invention is an optical recording medium provided with a recording layer, a reflective layer and a protective layer in this order on a substrate. The above-mentioned recording layer is formed of a pigment soluble in a polar solvent by a coating method. The structure of the present invention is basically provided with a recording layer in which a groove formed by absorbing laser light is provided on a transparent substrate on which a groove track is to be formed; A protective layer is provided on the layer to protect the recording layer and the reflective layer. The material of the above substrate is generally a material that allows laser light to substantially transmit and is suitable for general optical recording media. For example, carbonate resin, enoic resin, polyethylene resin, gas vinyl resin, epoxy resin, polymer Polymer materials such as ester resin, polystyrene, etc., or inorganic materials such as glass

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Wait. The method described above is used to make a substrate with grooves by injection molding or borrow a photopolymer. The present invention considers the decellularized film layer system; guide: recording optical recording medium, this color …, The integration of the fish-resistant wavelength, and the polar solution of the photosensitizing pigment of the media. According to the present invention, the phthalocyanine blue ratio is controlled to _ ^ and Timli I agent ', and its weight is 100%. rate. In order to reduce the error value and jitter of the optical recording traces-the main polar organic used in the present invention, & @, 1 廿 &# Do not restrict, the main soluble group is m ^ t corrosive organic solvents No special solvent is needed, such as A ::: t ϋ will not hurt the base phase when coating

Methyl glycol and ethyl ethyl alcohol, etc. :: alcohols, ethylene glycol, ± φ-^ Ethyl ... In the present invention, in addition to the ingredients and mixtures described in J, the main function of the sub-solvent is to improve the wettability of the pigment and make the photosensitive pigment penetrate into the south of the transparent substrate. The content is 丨% ~ 丨 0% of the volume of the main solvent, such as dipropanol 'dimethylpentanone, dimethylheptanone, acetone, methyl ethyl ketone, 曱 J isobutanone and other ketones Cyanide is fine. An additional additive is added to the above-mentioned solvent to enable it to significantly reduce the jitter rate of the recorded traces, such as: the name is a complex, including iron complex (Fe biscyclopentadienyl complex, ferrocene), and other titanium (Ti ), Complex (Cr), manganese (Mn), cobalt (Co), nickel (Ni), tungsten (W) and other metal complexes; or metal complexes formed from hexamethylene dione, including: aluminum complexes ( Aluminium Ace tony lace tonate), and magnesium (Mg), fishing (Ca), barium (Ba), iron (Fe), cobalt (Co), nickel (Ni), nitrogen (N), chromium (Cr), manganese ( Mn) and other metal complexes.

No. 6 I 440827 _Case No. 88101954_ Rev. _ V. Explanation of the invention (4) After the recording layer is formed, it should be dried. In terms of the productivity of the media and the stability of the characteristics of the recording signal of the media, the drying temperature is 4 (TC to 7 (TC is the best; drying time is usually about 20 minutes; on the other hand, the pressure during drying can be normal pressure or reduced pressure. At the same time, after the recording layer is formed, The reflective layer is formed on the recording layer, and the reflective layer is a metal reflective layer, such as: gold (Au), silver (Ag), aluminum (A1), platinum (Pt), copper (Cu), etc. A thin film of a metal or an oxide of these metals; the above metal may be one alloy or two or more alloys. In addition to the above metals, chromium (Cr), nickel (Ni), silicon ( Si), lead (Pb), tin (Sn) and other metals are auxiliary components, and the film is formed of a reflective layer, usually using vacuum deposition, thermal spraying, ion plating, etc., and the thickness of the film is usually 20 ~ 200nm. The protective layer provided on the reflective layer mainly protects the recording film and the reflective film. There are no special requirements. For example, polycarbonate, acrylic resin, polystyrene, polyethylene gas, epoxy resin, polyester resin, polystyrene, etc. polymer materials can be used. The light-hardening polymer is more suitable because it is easy to form a protective layer; the above materials can be used alone or in combination, or can be laminated with two or more materials to form a multilayer film. The film thickness of the protective layer is usually 2 ~ 20 / ζ πι, at the same time, printing can also be performed on this protective layer. Among them, the present invention describes the definition of the above-mentioned jitter rate (Jitter) as follows: the laser read / write head of a general optical disc drive will burn out on the optical disc Recording track (P it), this recording track thus generates a signal when the laser light is read, the signal can be obtained by the electronic circuit design digital signal; and the length of the recording track is based on the unit time T, there are 3 T, 4 T_ " To 1 1 T, there are 9 lengths in total,

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_ Case No. 8810 QiU V. Invention Description (5) Each length has its fixed average length, such as 3T is 660ns and 11T is 2570ns. The jitter rate is the standard error value of the actual measured track lengths (3T, 4τ ~ UT), and the specifications stipulate that the value must be less than 35ns. The following describes the present invention with more specific examples and comparative examples, but the patent scope of the present invention is not limited by the following examples. -[Example 1] An injection molding machine was used to inject a circular polycarbonate substrate with grooves. The depth of the grooves was i96〇a and the full width at half maximum was 0.5M. 2 g of phthalate The cyanine pigment was dissolved in 100 ml of the solvent. The solvent was 97 »volume of n-lactone and 3% by volume of dlmethyl heptanone to form a dye solution. This was evenly coated on the above substrate by a spin coating method. The plate was baked at 7 ° C for 2. minutes' to form a dry and uniform metal base plating machine and sputtered about 80 nm of silver on the recording layer ( Film = layer, a reflective coating is applied on the reflective layer by spin coating method # to become a reflective VUCQuer (SD-220, DAI ^ ink layer = = line) chemical resin (U · After irradiation hardening, the required Recordable & ^ Ultraviolet light This optical recording medium is recorded with a recordable disc burner, ^^ R) 卞, and the burning linear speed is 4.8m / sec. After the burning is completed, it will be used as shown. The numerical values are as shown in Table 1. The light resistance of the pigment is based on the test sheet of the recording layer that has just been coated. After 24 hours of exposure to the plain lamp, it is tested with a visible light spectrometer. The formula = 1 is used to calculate the pigment residual rate. (%), And the rate of 'case number 10101954 sr five, issued -------- one by one pigment residual rate (%) = (100 — Tn) + (100 — X 100 Τ'24 : The transmittance T after 24 hours of irradiation. 〇. The result of the residual ratio of the pigment obtained by the transmittance of the initial recording layer is shown in Table 1. [Example 2] The dye solution as in Example 1 was used. Then, in addition to 0.33 grams of iron iron 5 (C 1 () H 1GFe), the rest of the samples and tests were performed in accordance with the method of Example 1 are shown in Example 2 in Table 1. [Example 3] In the dye solution of Example 1, another 0.33 g of aluminum complex (produced by CIBA specialty chemicals Inc.) was added as an additive, and the rest were completed according to the method steps of Example 1, and the results were revealed. Example 3 in Table 2. [Comparative Example 1] Instead of using 97% by volume of n-propanol and 3% by volume of difluorenylheptanone solvent, a non-polar solvent of methylcyclohexane was used. The recording medium and test were completed according to the method of Example 1, and the obtained values are shown in Comparative Example 1 in Table 1. [Comparative Example 2] A dye solution of anthocyanin (Cyan i ne) was used instead of the dye solution in Example 1. Phthalocyanine blue pigment, that is, 20 grams of 2- {5- (1,3-dihydr〇-1, l-dimethyl ~ 3-butyl-2H-benz [e] indol-2-ylidene) -l, 3- pentadienyl} -l, l-dimethyl-3-b utyl-lH-benz 〔e〕 indolium perchlorate, 50 grams of 2- 〔5 ~ (1, 3) -dihydro-3, 3-diniethyl-l-propyl-2H -indol-2-yl

Page 9 440827 ___Case No. 88101954_Year Month Amendment ____ V. Description of the Invention (7) i dene -1,3-pen tadieny1] -3,3- (111116 1; 1 ^ 1-1-01 ' 〇 卩 7 卜 311-111 (101,11111, 丨 (11 {16, 2.3 g of Bis [-chloro-3-methoxy-4- (2-methoxyethoxy) dithiobenzil]) Nickel ((: 36 {134 (: 1 20 65 ") and 4.6 g of 4-Dimethylamino-4-nitroso-diphenylamine (C 丨 4H15N3〇) dissolved in 3 000 g of fluorinated alcohol and 300 g of cyanogen, the rest are according to the examples The method and method of 2 are used to complete the sample and test, and the obtained values are shown in Comparative Example 2 in Table 2. Table 1 Comparison results of optical characteristics and light resistance of a recordable optical disc using phthalocyanin as a recording layer: D1 Error rate | Jitter rate | Pigment residual rate I! I (%) h I Example I I Example I 丨 Example h Example 10

20 I 94 Example 2 | 8 I Example 3 丨 7 | 12 14 I + 93 95 Comparative Example 20 28 94 h + Comparative Example 2 10 33 Η ---— I 40 ΗIΗ IΗ IΗIΗ

Page ί 440827 _88101954_ --_____ 5. Description of the invention (8) [Conclusion] The spin coating method was used to add phthalocyanine blue n-propanol and diheptanone solutions, and then add sub-solvents and additives to the coating. On a polycarbonate substrate with two grooves, the test results are shown in the table-it is found that = the blue pigment has better jitter rate performance than the other anthocyanin after the same test. As can be seen from the results in Table 1, the additives have a positive effect on the recording surface of the optical disc. In particular, in terms of jitter rate, the optical recording layer with additives has a better shape of the recording track 'so that the jitter rate of the read signal is reduced. In addition, it can be observed from the results of the pigment residual rate of the optical recording medium after 24 hours of light irradiation that the optical durability of phthalocyanin is much better than that of anthocyanin dyes. Therefore, the present invention can significantly increase its optical recording characteristics. In order to increase its light resistance and extend the shelf life. The above-mentioned embodiments are only for explaining the technical idea and characteristics of the present invention. Its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. When the scope of the patent of the present invention cannot be limited, Any equal changes or modifications made in accordance with the spirit disclosed in the present invention should still be covered by the patent scope of the present invention.

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Claims (1)

440 82 7 Hu, 3 Case No. 88101954__Year Month. Date _ Rev. 丨 Zheng_ VI. Patent application scope I____ 1 'An optical recording medium, including a substrate, a recording layer' metal reflective layer and polymer protective layer ' The foregoing items are pressed on the aforementioned substrate in this order, 'the recording layer described above is formed by a polar solvent of fermented green pigment by coating method', and its content is controlled below 8%. 2. The optical recording medium according to item 1 of the scope of patent application, wherein the reflective layer is a metal reflective layer. 3. The optical recording medium according to item 1 of the scope of patent application, wherein the protective layer is a UV-curable polymer protective layer. 4. The optical recording medium according to item 1 of the applied patent, wherein the polar solvent further comprises a secondary solvent, which is selected from the group consisting of diacetone alcohol, dimethylpentamidine, difylheptane, A group of ketones such as acetone, fluorenyl ethyl ketone, fluorenyl isobutyl ketone, and vinyl cyanide. 5. The optical recording medium as described in item 1 of the scope of the patent application, wherein the electrode contains an additive, and the additive contains iron, titanium, inscription, fierce, and nickel. Compound in a range of lg / 100OL to 10g / 100OL. 6. The optical recording medium according to item 1 of the scope of claim 4, wherein after the formation of the layer, the temperature is 40 to 70 t, the time is about 20 minutes, and the pressure is t After drying under the conditions, a reflective layer and a protective layer are formed. Page 13 Stick Application # Case number: f8101954 Μ- Business category: ^ \\ hA, (the above are exempted by the Bureau) 440827 Invention patent specification Chinese application of phthalocyanin light recording media Invention name English OPTICAL RECORDING MEDIUM COMPSED OF PHTHALOCYANINE Name (Chinese) 1.Peng Wugeng Inventor's Name (English) 1. Nationality 1. Republic of China Residence, Domicile 1. Hsinchu County, Linshan Township, Shanshan Village, Qilin Sanmin Road No. 24 Name (Name) (Chinese) 1. Guoshuo Technology Industry Co., Ltd. Name (Name) ) (English) 1. Nationality 1. t. Republic of China applicant's residence and domicile (office) 1. Name of representative (Chinese), No. 2 Guangfu South Road, Hsinchu Industry District, Hsinchu County 1. Representative name of Guo Zhiqun (English) 1. 440827 _ Case No. 88101954 4. Abstract of Chinese Invention (Name of Invention: Application of Phthalocyanin 1 to 14 Recording Media) The invention discloses that an optical recording medium includes a substrate, which is provided with a recording layer, a metal reflective layer, and a polymer companion. The recording layer described in ^ "1" is composed of a polar solvent. Solvent phthalocyanin can be added by coating method, #, can also add a secondary solvent or an additive in a polar solvent. This form of $ 1 is for a light recording medium with better optical characteristics ^ This is the English abstract of the invention (Name of the invention: OPTICAL RECORDING MEDIUM COMPSED OF PHTHALOCYANINE) An optical recording medium is disclosed, which includes a transparent substrate, a recording layer included of an organic dye and additives, a reflective layer, and a polymer protective layer. The said recording layer is formed by spin coating. A dye solution includes of Phthalocyanine and additive is used for coating process and the additive can improve the properties of medium such as jitter, error rate, and 1lght fastness. 440 82 7 Hu, 3 Case No. 88101954__Year Month. Date _ Rev. 丨 Zheng_ VI. Patent application scope I____ 1 'An optical recording medium, including a substrate, a recording layer' metal reflective layer and polymer protective layer ' The foregoing items are pressed on the aforementioned substrate in this order, 'the recording layer described above is formed by a polar solvent of fermented green pigment by coating method', and its content is controlled below 8%. 2. The optical recording medium according to item 1 of the scope of patent application, wherein the reflective layer is a metal reflective layer. 3. The optical recording medium according to item 1 of the scope of patent application, wherein the protective layer is a UV-curable polymer protective layer. 4. The optical recording medium according to item 1 of the applied patent, wherein the polar solvent further comprises a secondary solvent, which is selected from the group consisting of diacetone alcohol, dimethylpentamidine, difylheptane, A group of ketones such as acetone, fluorenyl ethyl ketone, fluorenyl isobutyl ketone, and vinyl cyanide. 5. The optical recording medium as described in item 1 of the scope of the patent application, wherein the electrode contains an additive, and the additive contains iron, titanium, inscription, fierce, and nickel. Compound in a range of lg / 100OL to 10g / 100OL. 6. The optical recording medium according to item 1 of the scope of claim 4, wherein after the formation of the layer, the temperature is 40 to 70 t, the time is about 20 minutes, and the pressure is t After drying under the conditions, a reflective layer and a protective layer are formed. Page 13 Stick