摘要:
Disclosed herein are compositions (e.g., pigment dispersions or ink compositions such as inkjet ink compositions) comprising at least one quinacridone magenta pigment and at least one synergist selected from compounds (A) and (B) having the following structures, wherein each n is an integer independently ranging from 1 to 4, and R 1 -R 3 are each independently selected from H, CH 3 , Cl, and F, and (A) (B).
摘要:
An inkjet recording ink including at least a pigment, fine resin particles, a water soluble organic solvent, and water, wherein a polymer chain is grafted onto a surface of the pigment, and the polymer chain is composed of at least one monomer unit, which is selected from the monomers represented by the following Chemical Formulas (1) to (4): Chemical Formula (1) where R1 represents H or CH3, and "n" represents the number of carbon atoms; Chemical Formula (2) where R2 and R3 each represent H or CH3, and "m" represents the number of units repeated; Chemical Formula (3) where R4 and R5 each represent H or CH3, and "p" is the number of units repeated; and Chemical Formula (4) where R6 and R7 each represent H or CH3, and "k" and "l" each represent the number of units repeated.
摘要:
Compositions and methods for forming color images on a substrate capable of development at desired wavelengths or energy levels are disclosed and described. The color forming composition can include a carrier system and a latent pigment with a pendent group, wherein the latent pigment is colorless or pale in color while the pendent group is attached, and wherein the latent pigment is convertible to a colored pigment upon removal of the pendent group. Alternatively, the latent pigment can have multiple states of conjugation where the latent pigment is colorless or pale in a first conjugation state, and colored in a second conjugation state. The color forming compositions are useful in forming images on a wide variety of substrates, such as optical disks.
摘要:
The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.
摘要:
An improved process for producing a substantially pure gamma phase a quinacridone pigment or pigment derivative involving preparing an aqueous slurry of a crude quinacridone in the presence of caustic alkali and a non-polar, water immiscible solvent; and heating said slurry at a temperature above about 120 C.
摘要:
Process for preparing a bis (hydroxymethyl) perylenetetra carboximide compound by reacting perylene-3,4,9,10-tetracarboximide with formaldehyde. The bis (hydroxymethyl) perylenetetra carboximide can be isolated or further reacted in a one pot synthesis to yield a compound of formula (I), wherein X1 and X2, each independently of the other, are organic radicals, D is chlorine or bromine, and n is an integer from 0 to 4; which perylene derivative contains from 0 to 6 moles of -SO3M per mole of the perylene derivative; wherein M is hydrogen or a metal or ammonium cation.
摘要翻译:通过使苝-3,4,9,10-四甲酰亚胺与甲醛反应制备双(羟甲基)苝四甲酰亚胺化合物的方法。 双(羟甲基)苝四羰基酰亚胺可以在一锅合成中分离或进一步反应,得到式(I)化合物,其中X1和X2各自独立地为有机基团,D为氯或溴,以及 n为0〜4的整数; 该苝衍生物含有每摩尔苝衍生物0〜6摩尔的-SO 3 M; 其中M是氢或金属或铵阳离子。