Abstract: A recording material comprises a base material containing a highly water-absorptive resin and being in the form of a film.

Abstract: A recording liquid comprising a recording agent for giving recorded images and a liquid medium for dissolving or dispersing the recording agent, is characterized in that the recording agent comprises at least one of the compounds represented by the following formula (A) and at least one of the compounds represented by the following formula (B):Formula (A) ##STR1## Wherein Q.sub.1 and Q.sub.2 each represent benzene ring residue or naphthalene ring residue, unsubstituted or substituted by amine, hydroxyl, or sulfo; R.sub.1 and R.sub.2 each represent hydrogen, hydroxyl, or amino; and R.sub.3 and R.sub.4 each represent hydrogen or sulfo in the form of salt with an alkali selected from sodium, lithium, potassium, ammonium, and amines, wherein the number of sulfo groups in the molecule is 2 to 8;Formula (B) ##STR2## Wherein Q.sub.3 and Q.sub.6 each represent phenyl or naphthyl, substituted or unsubstituted; Q.sub.4 and Q.sub.5 each represent 1,4-phenylene or 1,4-naphthylene, substituted or unsubstituted; R.sub.

Abstract: 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.

Abstract: 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.

Abstract: A liquid recording material comprises a recording agent for forming a recording image and a liquid vehicle for dissolving or dispersing said recording agent therein and is characterized in that a polyalkylene glycol having an average molecular weight of 150 to 350 (A component) and a polyalkylene glycol having an average molecular weight of 400 to 750 (B component) are incorporated in combination in said material.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A recording liquid composition for use in a recording system of the type in which the recording liquid composition is jetted from a small orifice in a form of droplet flying toward a recording material on which an image is to be printed, said recording liquid composition comrising, as its recording agent component, a particular compound as well defined in the specification by the general formula (A) or (B).

Abstract: An image display device comprises a cell container, at least a pair of electrodes, an electrically responsive electrochromic medium accommodated in said cell container, said electrochromic medium comprising a complexon, Fe.sup.2+ ion and at least one metal ion other than Fe.sup.2+ ion.

Abstract: A liquid recording medium for use in a recording device, wherein the liquid recording medium is discharged from a discharge orifice in a recording head of the device and spattered in the form of droplets contains a carbonic acid ester compound having an aliphatic radical.

Abstract: An image display device comprises in combination:a cell container,at least a pair of electrodes,an electrically responsive electrochromic medium accommodated in said cell container, said electrochromic medium comprising a complexion.