摘要:
Photoconductive compositions and electrophotographic photoreceptive materials are described containing a photo-conductive substance and a 5-nitrofurfural derivative represented by formula (1) ##STR1## wherein A represents atoms which form, together with the carbon atom, a moiety represented by one of formulae (2) to (10) ##STR2## wherein R represents a straight or branched chain alkyl group containing from 1 to 12 carbon atoms, X represents a group having a Hammett .sigma. value of at least 0.2, n is 0, 1 or 2, and Y and Z each represents a cyano group, --COOR, ##STR3##
摘要:
A photoconductive composition comprising a photoconductive substance and a thiobarbituric acid derivative, and an electrophotographic light-sensitive medium comprising a support having a layer of the photoconductive composition thereon.
摘要:
A photoconductive composition comprising a photoconductive substance and a thiobarbituric acid derivative, and an electrophotographic light-sensitive material comprising a support having a layer of the photoconductive composition thereon.
摘要:
An electrophotographic light-sensitive material comprising a charge transporting compound and a styryl dye represented by formula (I) ##STR1## wherein A represents N--R.sub.8, O, S, Se, or ##STR2## R.sub.1 and R.sub.2 each represents a hydrogen atom or a substituent having a Hammett's substituent constant, .delta., of 0.2 or more;R.sub.3, R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R.sub.10 each represents a hydrogen atom, an alkyl group or a substituted alkyl group containing from 1 to 5 carbon atoms in the alkyl moiety;R.sub.4 and R.sub.5 each represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group;X.sup..crclbar. represents an anion; andn represents an integer of 1 or 2.
摘要:
Photoconductive compositions composed of an organic photoconductor or a dye-sensitized organic photoconductor are disclosed. The compositions have their sensitivity increased by the addition of a thioamide compound to the photoconductive composition. The photoconductive compositions are used in constructing electrophotographic light-sensitive materials having sufficiently high sensitivity for practical use. Various specific thioamide compounds which have been found to be effective are disclosed.
摘要:
A light-sensitive organic photoconductorcontaining photoconductive composition for electrophotography is disclosed. The composition has greatly increased light sensitive created by the incorporation of a thiourea compound. The photoconductive composition may further contain a sensitizing dye capable of increasing the sensitivity of the organic photoconductor.
摘要:
In a light transmissible light-sensitive recording material, the improvement wherein said recording material is a long film having a width of 40 mm or less, and both sides of at least one surface of said film each have an image protective zone having a kinetic friction coefficient of 0.35 or less which are provided in the lengthwise direction of the film in parallel with each other, is disclosed.
摘要:
Photoconductive compositions composed of an organic photoconductor or a dye-sensitized organic photoconductor are disclosed. The composition have their sensitivity increased by the addition of an amide compound to the photoconductive composition. The photoconductive compositions are used in constructing electrophotographic light-sensitive materials having sufficiently high sensitivity for practical use. Various specific amide compounds which have been found to be effective are disclosed.
摘要:
An image-forming process using a long rolled transparent light-sensitive recording material is disclosed. The process comprises applying at least two image-forming steps each including at least an image exposure and a development to a long rolled transparent light-sensitive recording material comprising a support having thereon a light-sensitive layer and a surface protective layer containing a hardenable compound and fine particles. The recording material preferably has a backing layer containing fine particles.
摘要:
A photoconductive composition containing as essential components a photoconductive polymer and 1,4-bis(.beta.-cyano-.beta.-alkoxycarbonylvinyl)benzene represented by the following formula (I) ##STR1## wherein R represents a methyl group, an ethyl group, a propyl group or an isopropyl group, present in an amount of about 0.02 mol to 0.5 mol per mol of a .pi.-electron system-containing constitutional repeating unit present in the photoconductive polymer, and which forms a charge transfer complex with the photoconductive polymer through the .pi.-electron system having optical sensitivities in the ultraviolet to visible regions; and an electrophotographic light-sensitive material incorporating the aforesaid photoconductive composition in a layer on a support having a conductive surface.