COLORED LOW-POLARIZATION FILM, COLORED LOW-POLARIZATION SHEET, LENS AND METHOD FOR MANUFACTURING SAME
[Problem to be solved] A low-polarizing film for sunglasses having a color that can be more freely selected and that shows smaller changes in color tone; a colored polarizing sheet using the film; and a colored low-polarizing lens using the polarizing sheet, are provided. [Solution] A colored low-po...
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Zusammenfassung: | [Problem to be solved] A low-polarizing film for sunglasses having a color that can be more freely selected and that shows smaller changes in color tone; a colored polarizing sheet using the film; and a colored low-polarizing lens using the polarizing sheet, are provided. [Solution] A colored low-polarizing film of a desired color that is produced by causing a polyvinyl alcohol film to swell with water, uniaxially stretching it, dyeing it with an organic dichroic dye, and drying it; a polarizing sheet that comprises the film and transparent sheets attached to both sides of the film by an adhesive; and an injection-molded polarizing lens that is obtained by causing the polarizing sheet to curve so as to impart spherical or aspherical surfaces thereto to obtain a curved polarizing lens and injecting a transparent resin onto the concave surface of the curved polarizing lens; are provided by using the dichroic organic dye that comprises a dichroic organic dye composition and a coloration organic dye composition, wherein the dichroic organic dye composition comprises a combination of dichroic organic dyes having a dichroic ratio of 13 or higher, used in an amount to keep the polarizing degree from 30% to less than 90%, wherein the coloration organic dye composition comprises a combination of dyes having an extremely low dichroic ratio, of 4 or less, or substantially having no dichroic ratio. The polarizing degree of the colored low-polarizing film is 45% to 90%. |
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