Abstract:
An oil-soluble dye prepared by subjecting a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule to amidation; a water-based ink comprising the oil-soluble dye; and a process for preparing an oil-soluble dye, comprising halogenating a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule, and thereafter subjecting the resulting halogenated water-soluble dye to amidation. The Oil-soluble dye of the present invention can be suitably and favorably used for inks for inkjet recording, inks for ball-points pens, inks for markers, toners, paints such as lacquers, inks for felt pens, and the like.
Abstract:
In water-based pigment inks containing a pigment, a dispersant, water and a water-soluble solvent, the dispersant is a copolymer (I) of a monomer of formula R1-CH=C(R2)-(CH2)m1COO(AO)nX (II) and monomer(s) (III) selected from compounds of formulae R3-C(R5)=C(R4)-COOM1 (IIIA) and CH2=C(R6)-CH2-SO3Y (IIIB), including acid anhydrides of (IIIA). In the formulae, R1, R2, R6, X = hydrogen (H) or 1-3 carbon (C) alkyl; R3, R4, R5 = H, 1-3 C alkyl or (CH2)m2COOM2; M1, M2 = H, an alkali(ne earth) metal, ammonium or (substituted) alkylammonium; m1, m2 = 0-2; AO = 2-4 C oxyalkylene; and n = 1-300.
Abstract:
A water-based ink containing an aqueous dispersion of water-insoluble vinyl polymer particles containing a pigment, wherein the water-insoluble vinyl polymer is obtainable by copolymerizing a monomer mixture containing (a) a monomer having a salt-forming group, (b) a monomer having a long-chain alkyl group having 18 to 30 carbon atoms, (c) a macromer, (d) a monomer having a polyoxyalkylene group, and (e) a monomer copolymerizable with the monomer having a salt-forming group (a), the monomer having a long-chain alkyl group (b), the macromer (c) and the monomer having a polyoxyalkylene group (d). The water-based ink can be suitably used, for instance, as a water-based ink for inkjet recording and the like.
Abstract:
A water-based ink containing an aqueous dispersion of water-insoluble vinyl polymer particles containing a pigment, wherein the water-insoluble vinyl polymer is obtainable by copolymerizing a monomer mixture containing (a) a monomer having a salt-forming group, (b) a monomer having a long-chain alkyl group having 18 to 30 carbon atoms, (c) a macromer, (d) a monomer having a polyoxyalkylene group, and (e) a monomer copolymerizable with the monomer having a salt-forming group (a), the monomer having a long-chain alkyl group (b), the macromer (c) and the monomer having a polyoxyalkylene group (d). The water-based ink can be suitably used, for instance, as a water-based ink for inkjet recording and the like.
Abstract:
An emulsified cosmetic for eyebrows or eyelashes with reduced irritation to the eyes and capable of suppressing the occurrence of dryness of the skin around the roots of the eyebrows or eyelashes and of retaining elasticity of the skin is provided. The emulsified cosmetic contains 0.01 to 1% by mass of a flavanonol derivative represented by the following formula (1) (wherein R 1 and R 2 are each independently a hydrogen atom or a methyl group) and 5 to 65% by mass of a volatile oil selected from volatile hydrocarbon oils and volatile silicone oils. The flavanonol derivative is dissolved in the volatile oil.