6 results about "Organic photoconductor" patented technology

The utility model relates to the technical field of printing devices, and discloses an organic photoconductor drum dip-coating device, which comprises a dip-coating device main body, the dip-coating device main body comprises a clamp module, the clamp module comprises two vertical guide rails, the dip-coating device main body further comprises a circulating module, the circulating module comprises a circulating pump, and the circulating pump is connected with the clamp module. The circulating pump is fixedly installed on one side of the dip-coating box and used for pumping out dip-coating pigment in the dip-coating box. The head end of the circulating pipe is fixedly connected with one side of the circulating pump, and the circulating pipe is used for conveying and circularly flowing the pigment pumped out by the circulating pump; the return pipe is fixedly mounted on the other side of the dip-coating box, the bottom end of the return pipe is connected with the top end of the circulating pipe, and the clamp module drives the photoconductor drum to sink into or leave the dip-coating box through the arrangement of the clamp module and the circulating module; the circulating module enables the coating to continuously and circularly flow to prevent the coating from being static.

The invention discloses an organic photoconductor drum, which comprises a conductive substrate, and a barrier layer, a charge generation layer and a charge transmission layer which are sequentially formed on the conductive substrate, and also comprises a self-repairing protection layer formed on the charge transmission layer, the charge generation layer is a gradient charge generation layer, and the charge transmission layer is a gradient charge transmission layer. The gradient charge generation layer is composed of two or more phthalocyanine materials with different photosensitive characteristics, and wide-spectrum and efficient absorption from visible light to near infrared spectrum is achieved; according to the gradient charge transport layer, a built-in electric field is formed through gradient distribution of a hole transport material and an electron transport material, and the mobility and balance of charges are remarkably improved; the outermost self-repairing protective layer contains a microencapsulated repairing agent which can be automatically released during friction damage, surface scratches are repaired, the mechanical durability of the photoconductor drum is greatly improved, and the service life of the photoconductor drum is greatly prolonged.

This invention discloses a secondary coating device and process for an organic photoconductor drum, applied in the technical field of secondary coating devices for organic photoconductor drums. The key technical points are: a base, on which an aluminum substrate loading seat and an aluminum substrate unloading conveyor line are fixedly connected; a coating station on the base is fixedly connected to a coating tank, which contains a viscosity stratification component for controlling the viscosity of the conductive slurry in the vertical direction by stratifying and temperature-controlled slurry; and a conveying component movably connected to the base, based on a lifting conveyor component, for transporting several aluminum substrates from the aluminum substrate loading seat to the coating tank. The technical effects are: improved coating uniformity, increased precision of the organic photoconductor drum, and extended service life.

The invention relates to an additive of a charge generation material in an organic photoconductor and the organic photoconductor, and belongs to the technical field of organic photoconductors. Aiming at the technical problems that Y crystal form titanyl phthalocyanine serving as a charge generation material in a charge generation layer in an organic photoconductor is large in dark attenuation and low in sensitivity in a high-temperature and high-humidity environment, bottom ash of a printed product is caused, and printing is light, a fluorine-containing polyurethane-acrylate copolymer and a benzotriazole-zinc chelate are added as additives; the weather resistance of the organic photoconductor is improved, so that the organic photoconductor keeps good performance in a high-temperature and high-humidity environment; the structural formula of the fluorine-containing polyurethane-acrylate copolymer is as shown in the following formula (I); in the formula (I), Rf is a perfluorinated linear alkyl group, and the values of m, n and k are all integers.

The invention discloses a multi-layer coating process for an organic photoconductor drum. The multi-layer coating process comprises the following steps: preparing a base material, coating a barrier layer I, coating a barrier layer II, coating a generation layer and coating a transmission layer, according to the invention, a composite structure of the colorless transparent barrier layer I and the pigment-containing barrier layer I is adopted, so that the charge blocking effect is enhanced, the interlayer adhesive force is improved, and the coating uniformity and performance optimization are realized by optimizing the coating speed, viscosity and drying conditions of each layer; and the conventional turning drum base is adopted to replace an expensive oxidation drum base, and the point-out problem is solved through the functional coating design, so that the production cost is greatly reduced.

The invention discloses an organic photoconductor drum plain tube ultrasonic cleaning device and process which are applied to the technical field of organic photoconductor drum ultrasonic cleaning devices, and the technical scheme is characterized in that the organic photoconductor drum plain tube ultrasonic cleaning device comprises a base, an input assembly and an output assembly, and the input assembly and the output assembly are symmetrically and fixedly arranged at the two ends of the base in the aluminum plain tube conveying direction respectively; the base is movably connected with a carrying assembly used for carrying a plurality of aluminum tubes on the basis of the conveying lifting assembly, and the base is sequentially provided with an ultrasonic pre-washing assembly, an ultrasonic main washing assembly, a multi-gradient countercurrent rinsing assembly and a drying assembly in the conveying direction of the aluminum tubes. The base is further provided with a sealing cover used for integrally sealing the cleaning device. The sealing cover is provided with an atmosphere replacement assembly used for replacing air in the sealing cover with pure nitrogen in the cleaning process. The cleaning device has the technical effects that the cleaning cost is reduced while the cleaning effect is improved.