A compound represented by Formula (1) or a tautomer thereof; a composition; a laminate; an optical film; an image forming material; and a method for producing a compound or tautomer thereof [R.sup.1 to R.sup.4: a hydrogen atom or the like, R.sup.20: a group represented by Formula (2) or the like, A: an aromatic hydrocarbon group or the like, B: a cationic aromatic hydrocarbon group or the like, *: a bonding position, with the proviso that a compound corresponding to [a], a compound corresponding to [b], and tautomers thereof are excluded. [a] A: a group represented by Formula (P), R.sup.20: a hydrogen atom, *: a bonding position, R.sup.1 and R.sup.3 are the same, and R.sup.2 and R.sup.4 are the same. [b] A: a group represented by Formula (P), R.sup.20: a group represented by Formula (2), *: a bonding position, B: a group represented by Formula (Q), R.sup.1 and R.sup.3 are the same, and R.sup.2 and R.sup.4 are the same.].

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The embodiment of the present disclosure provides a system for co-producing a xylitol and a caramel pigment by utilizing a xylose mother liquid, including an extraction assembly, a refined hydrogenation assembly and a browning reaction assembly. The extraction assembly is configured to obtain an extracted liquid and a raffinate liquid respectively by performing an initial extraction on the xylose mother liquid; the refined hydrogenation assembly is configured to prepare a crystal xylitol by performing a refined hydrogenation process on the extracted liquid; the browning reaction assembly is configured to prepare the caramel pigment by performing a browning reaction process on the raffinate liquid.

The present invention provides a method for preparing a colour-stable preparation of a magnesium chlorophyllin alkali metal salt or alkali earth metal salt from natural sources of chlorophyll. The invention further provides a colour-stable and substantially pure pigment composition comprising a vibrant green magnesium chlorophyllin in the form of an alkali metal or alkali earth metal salt, e.g. those prepared by the methods of the invention, and the use of the salts and compositions of the invention as colouring agents, in particular as food colouring agents, and as medicaments and disinfectants.

Provided are a photosensitive composition containing a colorant A including a pigment, a pigment derivative B, and a resin C, in which the colorant A includes a blue pigment, the pigment derivative B includes a transparent pigment derivative B1 and a chromatic pigment derivative B2, and a total content of the colorant A and the pigment derivative B in a total solid content of the photosensitive composition is 40% by mass or more; a film formed of the photosensitive composition; a color filter; a solid-state imaging element; and an image display device.

There is provided an ink composition that is excellent in anti-feathering and scratch resistance of markings and is suitable for industrial production. The present invention relates to: composite colored particles each including a resin particle carrying a positive electric charge on a particle surface and a pigment particle carrying a negative electric charge on a particle surface, the resin particle and the pigment particle forming a composite through electrostatic interaction; a water-based ink composition containing the composite colored particles dispersed in a water-based medium; and a writing instrument containing the water-based ink composition. Furthermore, the present invention relates to a method for producing composite colored particles, the method including forming a composite by mixing a resin emulsion containing resin particles each carrying a positive electric charge on a particle surface and a pigment dispersion containing pigment particles each carrying a negative electric charge on a particle surface.

A fluorinated phthalocyanine compound represented by Formula (1) (in Formula (1), M represents a metal atom or an oxide of a metal atom, and R.sup.101 to R.sup.108 each independently represent an alkyl group, an aryl group, or a heterocyclic group, provided that at least one of R.sup.101 to R.sup.108 is a group represented by Formula (2); in Formula (2), R.sup.201 to R.sup.205 each independently represent a hydrogen atom or a monovalent substituent, provided that at least one of R.sup.201 to R.sup.205 is a group represented by any one selected from the group consisting of Formula (3), Formula (4), Formula (5), Formula (6), and Formula (7)); and applications thereof.

The present disclosure provides a method for co-producing a xylitol and a caramel pigment. The method includes: transporting a raw material of a xylose mother liquid in a raw material tank to a filter for filtering impurities to obtain a filtered raw material of the xylose mother liquid, and transporting the filtered raw material of the xylose mother liquid to a nanofiltration membrane device to obtain a decolorized xylose mother liquid; transporting the decolorized xylose mother liquid to a first ion exchange device to obtain an ion exchange liquid; and transporting the ion exchange liquid to a chromatographic separation device and obtaining an extracted liquid and a raffinate liquid; performing a refined hydrogenation process on the extracted liquid through a refined hydrogenation assembly to obtain a crystal xylitol, and performing a browning reaction process on the raffinate liquid through a browning reaction assembly to obtain the caramel pigment.

Provided are a phthalocyanine pigment that is non-water soluble and has antibacterial or antiviral effect, and inks, printed matter, paints, coatings, plastics, fibers, films, cosmetics, and the like containing the pigment. A specific phthalocyanine pigment has antibacterial or antiviral effect, although the pigment is non-water soluble, and has significantly high performance in terms of heat resistance and light fastness, compared with a dye-based antibacterial colorant, because of being a pigment. Because of being a pigment, the phthalocyanine pigment also has antibacterial and antiviral effects in applications such as inks, printed matter, paints, coatings, plastics, fibers, films, and cosmetics, thus achieving the task described above.

Provided is a colored resin composition which can be applied as a color filter of a solid-state imaging device capable of performing high-level imaging by not only spectrally splitting light in a visible region into three colors but also spectrally splitting infrared rays. The colored resin composition includes a colorant (A), a solvent (B), and a binder resin (C), and has a maximum transmittance in a specific wavelength region in a wavelength range of 400 to 900 nm. The colorant (A) includes a colorant having specific light absorbing characteristics and a near-infrared absorbing compound.

Provided is a pigment composition that includes an isoindoline compound, has excellent dispersibility, weather resistance and heat resistance, and good storage stability, and is capable of forming images having high chroma and the like, the pigment composition including an isoindoline compound represented by formula (1) and an isoindoline compound represented by formula (2). Also provided are a colorant composition, a coating material, an ink, an ink set, a printed matter, and a packaging material.

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