摘要:
A demand ink jet employs removable cartridges of hot melt ink. When the temperature of the ink within the cartridge is raised, the ink melts and drains from the cartridge into the supply system.
摘要:
An improved cartridge for containing a pellet of hot melt or phase change ink in an ink jet apparatus having at least one ink jet, a reservoir for containing and melting the hot melt or phase change ink from its solid state to a liquid state, and a receiver adapted to receive the cartridge, wherein the receiver includes an outlet at the base thereof for flowing liquified ink into the reservoir, and wherein the pellet is comprised of a size and shape so as to substantially fill the receiving means. The improvement consists of a hollow member of a predetermined geometry corresponding substantially to the geometry of the receiver, open at one end and deformable so as to permit the discharge of the pellet contained within the member through its open end, a retainer for the pellet, and a seal at the open end to protect against contamination of the ink.
摘要:
A novel ink jet composition for use in drop on demand ink jet printers is disclosed comprising 85-99 weight percent of a vehicle consisting essentially of dibutyl sebacate and oleic acid. In the preferred embodiment, the dibutyl sebacate comprises between about 40 to 65, preferably about 60 weight percent of said ink. The subject ink, when utilizing an infrared readable colorant such as nigrosine base, is particularly suited for generating IR readable bar codes.
摘要:
A novel hot melt impulse ink jet ink is disclosed which comprises a C.sub.20 -C.sub.24 acid or alcohol containing vehicle, preferably behenic acid, and a suitable coloring agent. The preferred ink has a melting point above about 65.degree. C., exhibits very good jettability, good heat stability at a reservoir temperature of 90.degree. C., good material compatability, and an improved print quality. The preferred ink comprises about 80% natural behenic acid, 15% of a ketone (such as stearone), 3% coloring agent, and 2% of a plasticizer intended to improve print quality. The subject inks are jetted at relatively high temperatures (80.degree.-90.degree. C.) using impulse ink jet devices. Upon impact with the target substrate the subject inks freeze to produce a high quality print having a smear resistance approximately equal to IBM copy, and cracking resistance better than such copy.
摘要:
A natural wax-containing ink jet ink for use in an ink jet apparatus which features good print quality. The ink jet ink is discharged from the ink jet ink apparatus at elevated temperatures above ambient.
摘要:
A novel hot melt ink jet ink is disclosed for use in an impulse ink jet apparatus. The disclosed ink comprises a dispersed solid pigment which is formulated in a wax, or high molecular weight fatty acid or alcohol vehicle to form a hot melt ink which is solid at room temperature. The provision of such a pigment containing ink provides a high quality ink which is stable for long periods of time at relatively high temperatures. In the preferred embodiments, a dispersed graphite in a non-evaporative oil carrier, such as mineral oil, is formulated with candelilla wax, stearic acid and/or behenic acid.
摘要:
A method of making a color transparency with jetted color ink jet apparatus includes the steps of heating hot melt ink including an ink vehicle and a substantially translucent dye to a temperature above the melting point to attain the liquid state, ejecting small volumes of the hot melt ink from the ink jet apparatus toward a substantially transparent resinous support, cooling the small volumes of ink on the support so as to attain the solid state, and flattening the small volumes on the support to produce a substantially planar surface which minimizes refraction and scattering of light projected thereon or therethrough.
摘要:
A demand ink jet employs removable cartridges of hot melt ink. When the temperature of the ink within the cartridge is raised, the ink melts and drains from the cartridge into the supply system. Each of the cartridges may include ink of a different color so as to permit multi-color printing.
摘要:
An ink jet composition and method of applying same is featured providing exceptionally good print quality on a wide range of printing papers. The ink composition includes a mixture of oleic acid in an approximate weight of from 20 to 80 percent of the total mixture and a dye in a dye solvent. The mixture is jetted at a temperature of approximately 135.degree. F. The average dot circularity for a dot jetted upon the paper is approximately 0.7 or better.
摘要:
This invention relates to a method of forming pressure expressible composition impregnated, microporous resilient articles. In the process of the invention, a microporous article formed from a solvent swellable resilient organic polymeric material is contacted with a mixture of a pressure expressible composition and a solvent swelling agent, capable of swelling the resilient polymer, and having a volatility greater than that of the pressure expressible compositions, to swell the article and enlarge the micropores. The volatile swelling agent is then removed from the article to provide a microporous article containing the pressure expressible composition within the micropores.