摘要:
An ink jet recording head of the type in which ink droplets are jetted from the orifice of the head toward a recording material to effect recording on the surface of the recording material with said ink droplets, said recording head characterized in that at least the area surrounding the jet orifice is treated with a compound of general formula: R.Si.X.sub.3 wherein, R is a fluorine containing group selected from fluoroalkyl, fluoroaryl, fluorocycloalkyl, fluoroalkaryl and fluoroalkylaryl, each having 1 to 20 carbon atoms, and the ratio in number of fluorines: other elements in said fluorine containing group being not less than 1:1, and X is halogen, a hydrolyzable group selected from alkoxy, alkyl and acyloxy each having 1 to 5 carbon atoms, or hyroxyl.
摘要:
A liquid recording medium for use in a recording process, wherein said recording medium is discharged from a discharge orifice in a recording head and spattered in the form of droplets for recording, and containing (a) a recording agent for forming recorded images and (b) a carrier liquid capable of dissolving or dispersing the recording agent. The recording agent is a compound having 2-8 sulfo groups per molecule and having the formula (A) ##STR1## where the Q.sub.1 radicals are similar or dissimilar members selected from phenylene and naphthylene, the Q.sub.2 radicals are similar or dissimilar members selected from phenyl and naphthyl, the Q.sub.1 radicals and the Q.sub.2 radicals may be unsubstituted or amino substituted, hydroxyl substituted or sulfo substituted, R.sub.1 -R.sub.6 are similar or dissimilar members selected from hydrogen, amino, hydroxyl and sulfo, and said sulfo groups as mentioned above are all in the form of sodium salt or quaternary ammonium salt.
摘要:
An improvement in a structure of a liquid jet recording head having a liquid ejecting portion constructed with an orifice side end part, at the tip end of which an orifice is provided to discharge liquid therefrom, an energy acting zone communicatively connected with the orifice and where energy acts on the liquid to form flying droplets, and a liquid inlet port side end part connected with the energy acting zone and having a liquid inlet port, through which the liquid is introduced into the energy acting zone.
摘要:
In an ink-jet recording process which comprises forming droplets of an ink and recording on an image receiving material by using the droplets, said ink is prepared by dispersing fine particles of pigment into aqueous dispersion medium containing polymer having both a hydrophilic and a hydrophobic construction portion. An average particle size (D micron) of the pigment and an average molecular weight of the polymer satisfy the relationship represented by the following equation.D.times.5.times.10.sup.2 .ltoreq.WAnd the ratio of molecular weight of the pigment to average molecular weight of the polymer is a value in the range from 1:2 to 1:150.
摘要:
A liquid droplet is formed by producing and eliminating a bubble in a liquid in such a way that the liquid flow in the liquid conduit is not intercepted even when the bubble reaches the maximum volume.
摘要:
A recording method and a liquid composition for recording on a recording medium with a recording agent discharged from the discharge orifice of a recording head in the form of flying droplets by the repeated heating of a heating zone in the recording head, includes the steps of filling the heating zone with a liquid containing a liquid medium, a coating-film forming compound which undergoes thermal oxidation when subjected to heat energy for forming a coating film, and a recording agent, and causing heat energy to repeatedly act on the liquid to cause the repeated formation of coating film on the wall surface of the heating zone.
摘要:
A recording liquid composition whose small droplets are used for recording is composed of an aqueous liquid medium containing a water-soluble dye, and the composition contains a nitrogen-containing heterocyclic ketone compound and a member selected from urea and thiourea, or a nitrogen-containing 5-membered heterocyclic keto-acid.
摘要:
A recording liquid composed of an aqueous composition containing a water-soluble dye as the recording agent comprises a total concentration of halogen ions and acid radicals containing in said composition within the range from 0.00001 to 0.5% by weight.
摘要:
A leather coloring process for carrying out coloring on a natural leather, or a natural leather which has been subjected to degreasing. The coloring process is accomplished by ink-jet coloring on at least a partial area of the natural leather.
摘要:
A leather coloring process for carrying out coloring on a natural leather, or a natural leather which has been subjected to degreasing. The coloring process is accomplished by ink-jet coloring on at least a partial area of the natural leather.