摘要:
A heat-sensitive recording material comprising a support having thereon a heat-sensitive recording layer and a protective layer in this sequence, said heat-sensitive recording material containing a compound represented by formula (1), (2), (3), or (4): ##STR1##
摘要:
An interposer to be mounted with an integrated circuit to be a test object is provided with a switch and a probe to detect an electric current corresponding to individual terminals of the integrated circuit. A test pattern signal is then inputted to the integrated circuit through a test substrate as a switch that is connected to a power supply terminal of the integrated circuit and that is turned off. If the integrated circuit normally operates and the current values of all the terminals of the integrated circuit are within a tolerance, the power supply terminal connected to the turned-off switch is identified as a terminal that may be removed.
摘要:
A recording material which comprises a support having provided thereon capsules containing a photosensitive diazonium salt, and a polymerizable coupler. The recording material can give a predetermined hue when light, pressure, heat and the like are applied alone or in combination. The main advantages of the recording material are that a specific hue can be selected safely, mixing of colors can be avoided, desensitization problem does not occur and a fixed image can be obtained.
摘要:
A heat-sensitive recording material comprising a support having thereon a heat-sensitive color forming layer comprising an electron-donating colorless dye and an electron-accepting compound, wherein said electron-accepting compound is a bisthiourea compound.
摘要:
A recording material containing an electron donating colorless dye capable of undergoing a coloration reaction, wherein a metal salt of a salicylic acid derivative represented by the following formula (I) and a fatty acid derivative having a benzotriazole group as a substituent group or an alcohol derivative having a benzotriazole group as a substituent group are provided on a same support: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent each hydrogen atom, an alkyl group or an aryl group.
摘要:
A recording material containing the combination of at least one electron-donating colorless dye containing a p-substituted aminophenylindolyl azaphthalide and at least one electron-accepting compound containing an organic acid having at least one phenolic hydroxyl group. The material provides colored images having improved stability.
摘要:
A recording material comprising at least one electron-donating colorless dye having, in a 95% acetic acid solution, a maximum absorption at a wavelength of from 400 to 550 nm in the spectral absorption range of from 400 to 700 nm, and at least one fluoran derivative represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkoxy group, nitro, amino, cyano, acylamino, dialkylamino or a halogen atom.
摘要:
A pressure-sensitive recording material is described, comprising an electron-accepting compound, and at least one of electron-donating colorless dyes represented by formula (I) or formula (II) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 each represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkoxy group, or a halogen atom; and R.sub.9 and R.sub.10 each represents a hydrogen atom or a lower alkyl group, provided that at least one of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represents a lower alkyl group or a lower alkenyl group.
摘要:
A recording material comprising: one or more supports, an electron donating leuco dye and one or more electron accepting compound(s) is disclosed, in which said electron accepting compound(s) is/are represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group or an aryl group; Ar represents a substituted or unsubstituted polycyclic aryl group; and X.sub.1 and X.sub.2, which may be the same or different, each represents a hydrogen atom, a lower alkyl group, a lower alkenyl group or a halogen atom. The material exhibits improved preservability before and after recording and solvent resistance.
摘要:
A desensitizer composition containing the amidine derivative shown by following general formula can be effectively used for partially desensitizing a developer sheet of pressure-sensitive copying papers using diphenylamine series color formers: ##STR1## wherein R.sub.1 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms; R.sub.2 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an amino group, or an alkylthio group having 1 to 20 carbon atoms; and n is an integer of 2 to 6; said R.sub.1 and R.sub.2 may have a substituent and when both R.sub.1 and R.sub.2 are an alkyl group, at least one of R.sub.1 and R.sub.2 is an alkyl group having a substituent.