Method and device capable of obtaining ultraviolet light protection layer on surface of development roller

Abstract

The invention discloses a method capable of obtaining an ultraviolet light protection layer on a surface of a development roller. The method comprises the following steps of: irradiating an ultraviolet light having certain wavelength to the surface of the development roller having a high-molecular rubber layer; during the decomposition of an organic matter on the surface of the rubber layer, absorbing the ultraviolet light to cut off a chemical structure of a surface layer of the rubber layer; and cross-linking and vulcanizing high-molecular rubber again to obtain the ultraviolet light protection layer which is 0.1 to 0.3 mm thick on the surface of the rubber layer. The invention also provides a device for implementing the method. The invention has the advantages that: a coating material is not required; material cost is effectively saved; energy consumption is reduced; process time is short; process efficiency is improved by over 200 times; due to no atomization, environmental pollution is reduced; and when the development roller is used for printing, risks of drop-off and abrasion of a coating are avoided, printing quality is effectively improved, and printing service life is prolonged.

Description

【Technical field】 [0001] The invention relates to the technical field of laser imaging, in particular to the field of processing of developing rollers of printers and copiers, and further relates to a method and a device for enabling the developing roller to obtain an ultraviolet light protection layer. 【Background technique】 [0002] The developing roller is the developing component on the laser printer. It can absorb the toner and make it charged, and then transfer the toner to the surface of the photosensitive drum, so that the invisible image on the surface of the photosensitive drum can be developed into a visible image, and then transferred to the surface of the photosensitive drum. On paper becomes the text image that people need. The existing developing roller structure includes a roller core with a metal material as the base, the roller core is covered with a conductive polymer rubber adhesive layer, the adhesive layer is provided with a certain thickness of conduct...

AI Technical Summary

Problems solved by technology

The process time is long and takes 1 to 1.5 hours, and the production efficiency is low;

[0006] 3. Before spraying, the developing roller needs to be preheated at high temperature for 20 to 30 minutes, and then cured at high temperature for 20 to 30 minutes after spraying, which consumes energy and time, high energy consumption and low efficiency;

[0007] 4. The environmental requirements for spraying are high, and it must be operated in an environment of ISO 4-5, especially for paint spraying. If it is not eliminated in time, it will become a new dust impurity;

[0008]5. Pollution of the environment: when the paint is sprayed, some of it cannot adhere to the surface of the developing roller, and this part of the flying spray will seriously pollute the environment;

[0009] 6. The surface coating life of the developing roller is low. The laser printer needs to print at least several thousand pages, and the high-speed machine needs to print tens of thousands of pages. After the sprayed developing roller prints 2000-3000 pages, the coating will fall off and other losses will occur. Print quality problems, the higher the number of printed pages, the more serious the problem, therefore, many developing rollers cannot reach the design life

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