摘要:
This invention provides a laser marking method that can form a very minute mark of a predetermined shape, such as a letter or pattern, with clarity and high solidity, on the surface of a substrate. The laser marking method of the invention comprises the steps of (1) depositing a coloring material on the surface of a substrate of thermoplastic material to form a thin film of the coloring material, and (2) applying a laser beam to the thin film of the coloring material in conformity with a predetermined marking shape to cause the portions of the substrate irradiated with the laser beam to soften and to cause the thus softened portions to mix with the coloring material, thereby developing the predetermined marking shape on the surface of the substrate.
摘要:
Disclosed is a dyeing method using a laser beam. The method can dye transparent resins such as plastic lens well. Also disclosed is a dyeing apparatus. The dyeing method comprises heating a plastic lens having a dye-coated surface to fix the dye on the surface of the plastic lens. The method comprises the step of applying a laser beam with a wavelength, which is less likely to be absorbed in the dye but it absorbed in the plastic lens, onto the surface of the plastic lens through the dye.
摘要:
A method of dyeing a lens, comprises the steps of: (a) applying a dyeing ink containing a sublimable dye onto a base material to produce a dyeing base body; (b) placing the dyeing base body and the lens so that a dye-applied surface of the dyeing base body and a surface of the lens to be dyed face each other in noncontact relation, and heating the dyeing base body under substantially a vacuum condition to sublimate and deposit the applied dye on the lens; and (c) heating the dye deposited surface of the lens by irradiation of infrared rays from one direction to fix the deposited dye on the lens.
摘要:
The purpose of the present invention is to provide an ink for dyeing a plastic lens, capable of favorably dyeing the plastic lens by a vapor transfer dyeing method, and a method of dyeing a plastic lens by using the ink. In the present invention, an ink for dyeing a plastic lens, the ink being applied by an ink jet printer, sublimated in vacuum and deposited on the plastic lens to dye the lens, wherein the ink includes at least one sublimatable disperse dye of an anthraquinone dye, a quinophthalone dye, and an azo dye of thiazole type.
摘要:
This invention provides a laser marking method that can form a very minute mark of a predetermined shape, such as a letter or pattern, with clarity and high solidity, on the surface of a substrate. The laser marking method of the invention comprises the steps of (1) depositing a coloring material on the surface of a substrate of thermoplastic material to form a thin film of the coloring material, and (2) applying a laser beam to the thin film of the coloring material in conformity with a predetermined marking shape to cause the portions of the substrate irradiated with the laser beam to soften and to cause the thus softened portions to mix with the coloring material, thereby developing the predetermined marking shape on the surface of the substrate.
摘要:
A method of dyeing an object comprising placing a sublimable dye and the object to face each other apart at a predetermined distance of 0.1 mm or more but 10 mm or less under pressure, heating the sublimable dye with a laser to sublimate it toward the object such that the deposition region of the dye is part of a to be dyed region of the object, applying the sublimable dye over the entire to be dyed region of the object by relatively moving the object with respect to the sublimation position of the dye using a moving unit and heating at least a part of the dyed region of the object to fix the dye to the region.
摘要:
A lens dyeing method comprising the steps of: (a) determining a print area to be formed on a dyeing base body based on information entered to dye a predetermined area of a surface of a lens to be dyed with desired hue and almost uniform color density so that the print area has a diameter larger than that of the lens surface area and the color density of the print area concentrically changes from a central portion to a peripheral portion in a stepwise or linear manner; (b) applying a dyeing ink containing a sublimable dye onto the base body to form the determined print area on one surface of the base body; and (c) placing the base body and the lens so that the print area formed surface and the lens surface area to be dyed face each other in noncontact relation under substantially a vacuum condition, and heating the base body to deposit the dye onto the lens.
摘要:
A lens dyeing method comprising the steps of: (a) determining a print area to be formed on a dyeing base body based on information entered to dye a predetermined area of a surface of a lens to be dyed with desired hue and almost uniform color density so that the print area has a diameter larger than that of the lens surface area and the color density of the print area concentrically changes from a central portion to a peripheral portion in a stepwise or linear manner; (b) applying a dyeing ink containing a sublimable dye onto the base body to form the determined print area on one surface of the base body; and (c) placing the base body and the lens so that the print area formed surface and the lens surface area to be dyed face each other in noncontact relation under substantially a vacuum condition, and heating the base body to deposit the dye onto the lens.
摘要:
A dyeing method for dyeing a plastic lens, a plastic lens obtained by use of the dyeing method, and a dyeing system, a dyeing device, and a dyeing jig for a plastic lens are disclosed. The method includes a producing step of producing a print base body on which a print area is printed with a sublimatable dye by a printer under control of a computer, the printer being previously supplied with the dye; a placing step of placing the print base body and a lens to be dyed so that the print area on the base body is brought into nearly close contact with a lens surface to be dyed; and a transferring step of heating at least the print base body to sublimate the sublimatable dye of the print area, thereby transferring the dye to the lens surface to be dyed.
摘要:
A dyeing method of dyeing a plastic lens includes: a step of producing a base body to be used for a dyeing operation, the base body being applied with dyeing solutions each containing a dissolved or fine-grained dispersed sublimatable dye to form a dye application area on the base body, and the base body having a first face and a second face and at least the first face including a region having at least one of a good heat absorption coefficient and a good infrared-light absorption coefficient and the second face being formed thereon with the dye application area; a step of placing the lens in a predetermined position in a vacuum vapor-deposition device; a step of placing the base body in the vapor-deposition device so that the dye application area on the second face of the base body faces the lens without contact therewith; and a step of heating the first face of the base body under vacuum in the vapor-deposition device, thereby sublimating the dye of the dye application area to vapor-deposit the sublimated dye on the lens.