# US 8,541,088 B1 · Optical recording media and method of forming a printable layer thereon > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,541,088 B1 - Document ID: US8541088B1 - Status: Granted - Kind: B1 - Application number: 13/561,237 - Filed: 2012-07-30 - Granted: 2013-09-24 - Earliest claimed: 2012-06-01 - Assignees: CMC Magnetics Corporation - Applicants: Yung-Hui Hung; Cheng-Pi Lee; Kun-Long Li - Inventors: Yung-Hui Hung; Cheng-Pi Lee; Kun-Long Li - Web page: https://patentgrep.com/patent/US8541088B1 ## CPC - G11B 7/266: {Sputtering or spin-coating layers (sputtering in general C23C14/24; spin-coating in general B05D1/005)} - B41M 5/5254: {characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers} - G11B 23/40: Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph - B41M 5/0088: {by ink-jet printing} - B41M 5/0094: {by thermal printing} - Y10T 428/21: Circular sheet or circular blank - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present invention is related to an optical recording media having a printable layer with high specular gloss. The optical recording media comprises a first ink-absorbing layer formed on an outermost layer at an opposite side of a recording/reading surface of the optical recording media; and a second ink-absorbing layer formed on an inner side of the first ink-absorbing layer. A surface of said first ink-absorbing layer is printed with inks of colors of cyan, magenta, yellow, black to have an average specular gloss value at 20 degree angle greater than or equal to 30GU, an average specular gloss value at 60 degree angle of the four colored inks greater than or equal to 70GU, and an average specular value at 85 degree angle of the four colored inks greater than or equal to 88GU. ## Claims ### Claim 1 An optical recording media, comprising: a first ink-absorbing layer 105, formed on an outermost layer at an opposite side of a recording/reading surface of said optical recording media; a second ink-absorbing layer 104, formed on an inner side of said first ink-absorbing layer 105; and a bottom coating layer, formed on an inner side of said second ink-absorbing layer appositive to an optical data recording layer 102 of the optical recording media; wherein a surface of said first ink-absorbing layer 105 is printed with inks of colors of cyan, magenta, yellow, black to have an average specular gloss value at 20 degree angle greater than or equal to 30GU, an average specular gloss value at 60 degree angle greater than or equal to 70GU, and an average specular value at 85 degree angle greater than or equal to 88GU and a first ink-absorbing value of the second ink-absorbing layer 104 is different from a second ink-absorbing value of the first ink-absorbing layer 105. ### Claim 2 (depends on 1) The optical recording media as claimed in claim 1, wherein said average specular gloss value at 20 degree angle is greater than or equal to 35GU, said average specular gloss value at 60 degree angle is greater than or equal to 73GU, and said average specular value at 85 degree angle is greater than or equal to 96GU. ### Claim 3 (depends on 1) The optical recording media as claimed in claim 1, wherein said first ink-absorbing layer 105 is formed of a thermosetting ink-absorbing material. ### Claim 4 (depends on 1) The optical recording media as claimed in claim 1, wherein said second ink-absorbing layer 104 is formed of an UV curable ink-absorbing material. ### Claim 5 (depends on 1) The optical recording media as claimed in claim 1, wherein said first ink-absorbing layers 105 and second ink-absorbing layers 104 are formed by spin coating. ### Claim 6 A method of forming a printable layer on an optical recording media, comprising the steps of: forming a bottom coating layer appositive to an optical data recording layer 102 of the optical recording media; forming a second ink-absorbing layer 104 by spin coating; and forming a first ink-absorbing layer 105 by spin coating; wherein a surface of said first ink-absorbing layer 105 is printed with inks of colors of cyan, magenta, yellow, black to have an average specular gloss value at 20 degree angle greater than or equal to 30GU, an average specular gloss value at 60 degree angle greater than or equal to 70GU, and an average specular value at 85 degree angle greater than or equal to 88GU and a first ink-absorbing value of the second ink-absorbing layer 104 is different from a second ink-absorbing value of the first ink-absorbing layer 105. ### Claim 7 (depends on 6) The method of forming a printable layer on an optical recording media as claimed in claim 6, wherein said average specular gloss value at 20 degree angle is greater than or equal to 35GU, said average specular gloss value at 60 degree angle is greater than or equal to 73GU, and said average specular value at 85 degree angle is greater than or equal to 96GU. ### Claim 8 (depends on 6) The method of forming a printable layer on an optical recording media as claimed in claim 6, wherein said first ink-absorbing layer 105 is formed by spin coating a thermosetting ink-absorbing material. ### Claim 9 (depends on 6) The method of forming a printable layer on an optical recording media as claimed in claim 6, wherein said second ink-absorbing layer 104 is formed by spin coating an UV curable ink-absorbing material. ### Claim 10 (depends on 6) The method of forming a printable layer on an optical recording media as claimed in claim 6, wherein each one of said steps is performed under an environment of a constant temperature. ### Claim 11 (depends on 6) The method of forming a printable layer on an optical recording media as claimed in claim 6, wherein said step of forming said bottom coating layer is performed prior to said step of forming said second ink-absorbing layer 104 by spin coating.