摘要:
A liquid electrostatic developer containing negatively chargeable resin particles with improved charging characteristics, said developer consisting essentially of(A) nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount;(B) resin particles of a blend of at least two polymers, at least one polymer containing at least one acidic constituent having a pKa of less than 4.5 measured at 25.degree. C. in water, and the blend having an acid number of at least one due to said acidic constitutent; the resin particles having an average by area particle size of less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound.A preferred polymer blend is composed of polystyrene and a sulfonated polymer, e.g., poly(2-acrylamido-2-methyl-1-propanesulfonic acid). The average resin particle size by area is less than 10 .mu.m. Optionally a colorant and other additives or adjuvants are present. The liquid electrostatic developer is useful in copying making proofs including digital color proofs, lithographic printing plates, and resists.
摘要:
Electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) thermoplastic resin particles having a metallic soap as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound. Optionally a colorant and charge adjuvant are present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
摘要:
This invention relates to a process for forming a reflection hologram. A process for forming a volume reflection hologram is provided wherein the formation of secondary holograms is suppressed by the placement of index matched filters contiguous to at least one surface of the photosensitive recording element during formation of the hologram.
摘要:
In accordance with this invention there is provided a process for the preparation of pigmented ink jet inks comprising:(a) mixing at least one pigment and at least one pigment dispersant in a dispersant medium to form a pigmented ink mixture wherein pigment is present in an amount up to 60% by weight based on the total weight of the mixture;(b) deflocculating the pigmented ink mixture by passing the pigmented ink mixture through at least a plurality of nozzles within a liquid jet interaction chamber at a liquid pressure of at least 1,000 psi to produce a substantially uniform dispersion of pigment particles in the dispersant medium.
摘要:
A liquid electrostatic developer consisting essentially of(A) a nonpolar liquid having a Kauri-butanol value of less than 30 present in a major amount,(B) thermoplastic resin particles having dispersed therein an aromatic nitrogen-containing compound which is substantially insoluble or immiscible in the nonpolar liquid at ambient temperatures as defined herein, the resin particles having an average by area particle size of less than 10 .mu.m, and(C) a nonpolr liquid soluble ionic or zwitterionic charge director compound, and process for preparation. The developer is useful in copying and color proofing including digital color proofing, lithographic printing plates and resists.
摘要:
Holographic photopolymer compositions having fluorinated binders are provided that produce excellent reflection holograms when holographically imaged.
摘要:
A positive, liquid electrostatic developer consisting essentially of(A) a nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount,(B) thermoplastic resin particles having dispersed therein a phosphorous-containing compound defined herein which is substantially insoluble or immiscible in the nonpolar liquid at ambient temperatures, the resin particles having an average by area particle size of less than 10 .mu.m, and(C) a nonpolar liquid soluble ionic or zwitterionic charge director compound, and process for preparation. The liquid developer is useful in copying, color proofing including digital color proofing, lithographic printing plates and resists.
摘要:
Electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) at least one thermoplastic resin having an average particle size by area of less than 10 .mu.m, and(C) at least one glyceride charge director as defined. Optionally a colorant and a charge adjuvant can be present. The elastrostatic liquid developer is useful in copying, making proofs, including digital color proofs, lithographic printing plates, resists and medical hardcopies.
摘要:
Negative, liquid electrostatic developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount. `(B) thermoplastic resin particles having a hydroxycarboxylic acid as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic compound which imparts a negative charge to the thermoplastic resin particles. Optionally additional adjuvants are present. The liquid electrostatic developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
摘要:
Electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) thermoplastic resin particles having a metallic soap as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound. Optionally a colorant and charge adjuvant are present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.