Provided are a polycarbonate resin composition comprising a polycarbonate resin, pentaerythritol tetrastearate, a black dye, and a blue dye, and an optical molded product comprising same.

A thermal transfer sheet that yields three-color black printed matter having an extremely high density, and a method for producing printed matter using the thermal transfer sheet are provided. The thermal transfer sheet includes a substrate film and a dye layer containing a magenta dye disposed on one surface of the substrate film, and the magenta dye includes at least one of an anthraquinone-based dye represented by general formula (1) below and an anthraquinone-based dye represented by general formula (2) below. An image is formed by a thermal transfer method using the thermal transfer sheet. (In general formula (1), R.sup.1 is a phenyl group which may have a substituent. In general formula (2), R.sup.2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. R.sup.a and R.sup.b are each independently a hydrogen atom or a nitro group.)

##STR00001##

A thermal transfer sheet that yields three-color black printed matter having an extremely high density, and a method for producing printed matter using the thermal transfer sheet are provided. The thermal transfer sheet includes a substrate film and a dye layer containing a magenta dye disposed on one surface of the substrate film, and the magenta dye includes at least one of an anthraquinone-based dye represented by general formula (1) below and an anthraquinone-based dye represented by general formula (2) below. An image is formed by a thermal transfer method using the thermal transfer sheet. (In general formula (1), R.sup.1 is a phenyl group which may have a substituent. In general formula (2), R.sup.2 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. R.sup.a and R.sup.b are each independently a hydrogen atom or a nitro group.)

##STR00001##

An optical system that includes a cholesteric glassy liquid crystal film doped with a dye and configured to preferentially absorb light of a first handedness, such as left-hand circularly polarized (LCP) light, but pass light of the opposite handedness, such a right-hand circularly polarized (RCP) light. Adding an anti-reflection coating can further increase the transmission-to-reflection ratio.

The present disclosure provides a contact lens comprising a first colourant which is a blue-blocking colourant having an absorption maximum (λ.sub.max) in the range of from 415 nm to 455 nm and a second colourant, wherein the second colourant is a polymerizable dye having an absorption maximum (λ.sub.max) in the range of from 470 nm to 600 nm, and optionally also comprising a third colourant which is a colourant having an absorption maximum in the range of from greater than 600 nm to 800 nm. A method of making the lens is also provided.

The present invention relates to a compound of formula (I-0) or a salt thereof. The invention further relates to the use of such compound as a colouring agent. The invention also relates to a colouring composition comprising such compound.

The present invention relates to a compound of formula (I-0) or a salt thereof. The invention further relates to the use of such compound as a colouring agent. The invention also relates to a colouring composition comprising such compound.

Provided are a polycarbonate resin composition comprising a polycarbonate resin, pentaerythritol tetrastearate, a black dye, and a blue dye, and an optical molded product comprising same.

The present disclosure provides a contact lens comprising a first colourant which is a blue-blocking colourant having an absorption maximum (.sub.max) in the range of from 415 nm to 455 nm and a second colourant, wherein the second colourant is a polymerizable dye having an absorption maximum (.sub.max) in the range of from 470 nm to 600 nm, and optionally also comprising a third colourant which is a colourant having an absorption maximum in the range of from greater than 600 nm to 800 nm. A method of making the lens is also provided.

An object of the present invention is to provide a thermal transfer recording sheet that enables images having a wide color gamut, a high chroma, and good lightfastness, in which the degree of catalytic fading is reduced, to be formed. The thermal transfer recording sheet includes a base material and a colorant layer on the base material. The colorant layer includes a yellow dye layer, a magenta dye layer, and a cyan dye layer. The dye layers each include, as a dye, a compound having a specific structure.