摘要:
Disclosed is an organic phase change carrier and a method for forming same, and a phase change ink including same. The organic phase change carrier comprises a colloidal dispersion of nanoparticles exhibiting a substantially uniform distribution of said nanoparticles discretely distributed therewithin, at least one curable monomer; a phase change inducing component, and an initiator. The organic phase change carrier exhibits a substantially uniform distribution of the nanoparticles so that they are discretely distributed therewithin, and are substantially resistant to the aggregation of the nanoparticles distributed therewithin.
摘要:
Phase change ink comprising colorant and carrier comprising additive of formula wherein A, E, G, and J are —H, —Cl, —Br, —I, —OH, —COOH, amino, alkyl, aryl, arylalkyl, alkylaryl; Z is —H, alkyl, aryl, arylalkyl, alkylaryl, —(CH2CH2O)mH, Na, K, —P(X)(OR5)(OR6) wherein X is oxygen or sulfur, or —C(═O)R7, and n is 0, 1, 2, or 3. Also, a process which comprises (1) incorporating into an ink jet printing apparatus a phase change ink as disclosed herein; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate.
摘要:
Disclosed is an ink carrier comprising an ester terminated oligo-amide material having a substantially low polydispersity. This ink carrier can be combined with a colorant to produce an ink composition.
摘要:
An ink preferably used in piezoelectric ink jet devices includes an ink vehicle that includes at least one curable monomer, at least one polymerizable organic gelator, at least one initiator, at least one colorant and optionally at least one low molecular mass non-reactive organic gelator and/or at least one thermal solvent. The use of the curable gelator enables the ink to form a gel state having a viscosity of at least 102.5 cps at very low temperatures of about 30° C. to about 50° C. The ink may thus be jetted at low temperatures of about 50° C. to about 90° C. The ink is heated to a first temperature above the gel point of the ink, jetted onto a surface maintained at a second temperature at which the ink forms a gel state, and when on the image receiving substrate, is exposed to radiation energy to polymerize the polymerizable components of the ink.
摘要:
Disclosed is a phase change ink composition comprising an ink vehicle, a colorant, and a nonpolymeric organic gelator selected from the group consisting of anthracene-based compounds, steroid compounds, partially fluorinated high molecular weight alkanes, high molecular weight alkanes with exactly one hetero atom, chiral tartrate compounds, chiral butenolide-based compounds, bis-urea compounds, guanines, barbiturates, oxamide compounds, ureidopyrimidone compounds, and mixtures thereof, said organic gelator being present in the ink in an amount of no more than about 20 percent by weight of the ink, said ink having a melting point at or below which the ink is a solid, said ink having a gel point at or above which the ink is a liquid, and said ink exhibiting a gel state between the melting point and the gel point, said ink exhibiting reversible transitions between the solid state and the gel state upon heating and cooling, said ink exhibiting reversible transitions between the gel state and the liquid state upon heating and cooling, said melting point being greater than about 35° C., said gel point being greater than said melting point. Also disclosed are imaging processes employing phase change inks containing gelator additives.
摘要:
An ink composition comprised of (1) a polymer; (2) an acid compound of the formula CH3(CH2)m(CH2CH═CH)p(CH2)nCOOH wherein n, m, and p represent the number of segments; (3) a conductive component; (4) a lightfastness component; and (5) a colorant.
摘要:
An ink composition comprised of (a) water, and a dye containing sulfonated component of the following formula ##STR1## wherein R is m(H) and O(SO.sub.3 --Y.sup.+), wherein H is hydrogen, Y is an alkali cation or an alkaline earth cation, m is the mol fraction of hydrogen, and O is the mol fraction of sulfonate (SO.sub.3 --Y.sup.+); X is a glycol, and n represents the number of repeating segments.
摘要:
Disclosed is a process for preparing an ink composition which comprises treating a dye with a zeolite, followed by admixing the treated dye with an aqueous liquid vehicle to form an ink composition. Alternatively, the process can comprise admixing a dye and an aqueous liquid vehicle to form an ink composition, followed by treating the ink composition with a zeolite. Also disclosed is an ink container comprising (a) an exit opening; (b) an ink storage area; and (c) a zeolite filter situated between the exit opening and the ink storage area. Further disclosed is an ink container comprising (a) an exit opening; (b) an ink storage area; and (c) a zeolite situated within the ink storage area and situated so that it is in contact with ink contained within the ink storage area.
摘要:
A radiation curable solid ink composition comprising at least one curable wax that is curable by free radical polymerization; at least one monomer, oligomer, or prepolymer; at least one non-curable wax; at least one free-radical photoinitiator or photoinitiating moiety; and a colorant; wherein the components form a curable ink composition that is a solid at a first temperature of from about 20 to about 25° C.; and wherein the components form a liquid composition at a second temperature of greater than about 40° C.
摘要:
A phase change magnetic ink and process for preparing same including comprising a phase change ink carrier; an optional colorant; an optional dispersant; an optional synergist; an optional antioxidant; and a polymer coated magnetic nanoparticle comprising a magnetic core and a polymeric shell disposed thereover.