257 results about "Quinacridone" patented technology

The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for pigmenting high molecular weight organic materials.

A curable pigment inkjet ink set includes mprg a cyan inkjet ink, a yellow inkjet ink, and a magenta inkjet ink, whereinthe yellow inkjet ink having ABS(Y)500-530<5 and ABS(Y)400-500>60 includes one or more yellow pigments;the cyan inkjet ink includes one or more β-copper phthalocyanine pigments; andthe magenta inkjet ink contains a mixed crystal including a first quinacridone and a second quinacridone in a ratio of the first quinacridone over the second quinacridone such that ABS(M)500-530>20 and ABS(M)500-600>60,ABS(Y)500-530 represents the absorbance of the yellow inkjet ink between 500 and 530 nm in a normalized absorption spectrum of the yellow ink;ABS(M)500-530 represents the absorbance of the magenta inkjet ink between 500 and 530 nm in a normalized absorption spectrum of the magenta ink;ABS(Y)400-500 represents the absorbance of the yellow inkjet ink between 400 and 500 nm in a normalized absorption spectrum of the yellow ink; andABS(M)500-600 represents the absorbance of the magenta inkjet ink between 500 and 600 nm in a normalized absorption spectrum of the magenta ink,wherein ABS(X)WL1-WL2 represents the peak area between the wavelengths WL1 and WL2 calculated by summation of the normalized absorbance values in the range WL1 to WL2 which are obtained by multiplying the absorbance values at each wavelength in the range from 380 to 850 nm by the reciprocal value of the maximum absorbance Amax in the range of 380 to 850 nm using a spectrophotometer with an interval of 1 nm on the ink X diluted in ethyl acetate to a pigment concentration of 40 ppm.

A non-aqueous inkjet ink includes a quinacridone pigment and a dispersion synergist wherein the quinacridone pigment is a mixed crystal including a dimethyl substituted quinacridone and a monomethyl substituted quinacridone and the dispersion synergist includes at least one acid group.

Provided is a magenta toner having a toner particle containing a binder resin, a wax and a colorant, wherein the colorant contains a specific amount of a compound (1), the colorant also contains one or more compounds selected from the group consisting of a naphthol compound, a quinacridone compound and a lake compound thereof in addition to the compound (1), and the binder resin contains a specific amount of a polyester resin.

The process for producing highly concentrated nanometer-size fine particles of an organic pigment, which comprises dissolving the organic pigment in an amide solvent, especially an organic solvent comprising at least 50 vol % 1-methyl-2-pyrrodinone, and pouring the resultant organic pigment solution with stirring into a poor solvent which is not compatible with the organic pigment. The pigment may be a quinacridone pigment, phthalocyanine pigment etc. Any atmospheric pressure to a sub-critical and / or supercritical state can be employed as the production conditions.

A non-aqueous pigment dispersion including a diketopyrrolo-pyrrole pigment, a polymeric dispersant and a dispersion synergist in a dispersion medium wherein the dispersion synergist is a quinacridone derivative containing at least one acidic group or a salt thereof.

The invention discloses flame-retarding lacquer putty and a preparation method thereof, and aims to provide air-dried organic silicon-modified unsaturated flame-retarding lacquer putty which has good comprehensive performance, long-term use at the temperature of below 250 DEG C and self-drying property at normal temperature to meet special requirements of subway vehicles and casthouse vehicles, wheel shafts, smoke (steam) passages and the like in other high temperature places. The air-dried organic silicon-modified unsaturated flame-retarding lacquer putty is characterized by being prepared by mixing raw material nano-montmorillonite not containing a halogen element compound, reactive diluent, a heat-resistant unsaturated polyester resin, an organic silicon resin, a special filler, a flame retardant, a low shrinkage additive, a stabilizer, dimethylaniline, a dispersant, titanium dioxide, hollow glass micro-beads, a drier, molybdenum disulfide, talcum powder, ketone peroxide, a curing agent filler, quinacridone bluish red and polyvinylpyrrolidone in a certain proportion, dispersing and grinding the mixture to prepare a main agent and a curing agent, and mixing the main agent with the curing agent. The flame-retarding lacquer putty is mainly used as a bottom coating material for subway vehicles.

The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for pigmenting high molecular weight organic materials.