# US 8,999,006 B2 · Selective tinting method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,999,006 B2 - Document ID: US8999006B2 - Status: Granted - Kind: B2 - Application number: 13/502,335 - Filed: 2010-10-15 - Published: 2012-08-16 - Granted: 2015-04-07 - Earliest claimed: 2009-10-21 - Assignees: Essilor International (Compagnie Generale d'Optique) - Applicants: Samuel Archambeau; Jérôme Ballet; Jean-Paul Cano; Stéphane Perrot - Inventors: Samuel Archambeau; Jérôme Ballet; Jean-Paul Cano; Stéphane Perrot - Web page: https://patentgrep.com/patent/US8999006B2 ## CPC - C08J 7/06: with compositions not containing macromolecular substances - B41M 5/265: {for the production of optical filters or electrical components} - D06P 5/00: Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form - G02B 1/10: Optical coatings produced by application to, or surface treatment of, optical elements (G02B1/08 takes precedence) - G02B 5/223: {containing organic substances, e.g. dyes, inks or pigments} - B41M 3/003: {on optical devices, e.g. lens elements; for the production of optical devices (production by thermal imaging means B41M5/265)} - C08J 2367/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds; (C08J2367/06 takes precedence) - C08J 2369/00: Characterised by the use of polycarbonates; Derivatives of polycarbonates - C08J 2379/08: Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors - Y10T 428/24174: including sheet or component perpendicular to plane of web or sheet - Y10T 428/24942: including components having same physical characteristic in differing degree - Y10T 428/249994: Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.] - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - 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) - D06P: DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention relates to a selective dyeing method used for dyeing a substrate (10), selectively within a first exposed surface portion (S1) of said substrate. For this purpose, the substrate consists of a material (2) that is impervious to a dye with the exception of the first portion of the exposed surface. In particular, the impervious material can form a layer which covers a base portion (3) of the substrate in a second portion (S2) of the exposed surface. The substrate is heated such that the dye (C) penetrates a pervious material (1) which constitutes the first portion of the exposed surface. The method is particularly useful for eliminating light diffused by the walls of a multilayer structure which is supported by means of ocular glass. ## Claims ### Claim 1 A selective tinting method comprising: selectively tinting a substrate, the selectively tinting including: providing the substrate with an exposed surface that includes a first surface portion of a first material and a second surface portion of a second material that is different from said first material; providing a dye source configured to release dyes when said source is heated; transferring dyes from said dye source onto said exposed surface of the substrate by heating the dye source in proximity to the exposed surface of the substrate; causing the dyes transferred onto the first surface portion to penetrate into the first material by heating the substrate; and rinsing the exposed surface of the substrate with a dye solvent, so as to eliminate the dyes remaining on said exposed surface, wherein the second material prevents dyes, originating from the dye source and present on the second surface portion when starting to heat the substrate, from penetrating into said second material during heating said substrate, the dyes present on the second surface portion being eliminated while rinsing the exposed surface. ### Claim 2 (depends on 1) A method according to claim 1, wherein the second material has a gelation or softening temperature higher than a gelation or softening temperature of the first material. ### Claim 3 (depends on 1) A method according to claim 1, wherein the first material is an organic or mineral-organic hybrid material, and the second material is a mineral or mineral-organic hybrid material. ### Claim 4 (depends on 3) A method according to claim 3, wherein the second material comprises silica, zinc oxide, tin-doped indium oxide, or a hybrid material incorporating silica, zinc oxide, or tin-doped indium oxide. ### Claim 5 (depends on 1) A method according to claim 1, wherein the transferring includes releasing said dyes in by sublimation of said dyes, and said dyes are in gaseous form during their transfer between said dye source and the exposed surface of the substrate. ### Claim 6 (depends on 1) A method according to claim 1, wherein the transferring includes transferring said dyes during a contact between said dye source and the exposed surface of the substrate, and wherein the dye source is removed between transferring the dyes and heating the substrate. ### Claim 7 (depends on 1) A method according to claim 1, wherein the dye source comprises a portion of paper or polyvinyl alcohol, impregnated with the dyes. ### Claim 8 (depends on 1) A method according to claim 1, wherein the substrate comprises: a transparent base substrate having an upper surface; a transparent layer of the second material, supported by the upper surface of the base substrate; and a network of walls arranged on the transparent layer of the second material, on a side of said transparent layer opposite the base substrate, the walls extending perpendicularly to the upper surface of the base substrate, the first surface portion of the exposed surface being formed by the walls, and the second surface portion of the exposed surface being formed by the transparent layer of the second material between the walls. ### Claim 9 (depends on 8) A method according to claim 8, wherein the walls are at least partially of photoresist resin, and wherein heating the substrate includes heating the substrate for at least one hour at a temperature of between 110° and 150° C. ### Claim 10 (depends on 8) A method according to claim 8, wherein the base substrate is of polyethylene terephthalate. ### Claim 11 (depends on 8) A method according to claim 8, wherein the transparent layer of the second material has a thickness of between 50 and 1000 nm perpendicularly to the upper surface of the base substrate.