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Carbon powder premix

A premix and carbon powder technology, which is applied in the field of toner premix, can solve the problems of inability to micronize the resin, poor viscosity and inability to obtain a uniform mixture, etc., and achieve the effect of reduced viscosity and good resin micronization effect

Active Publication Date: 2014-04-09
GUANGDONG GUANGHAIDA IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when high-pressure fluids containing dissolved resin and carbon dioxide are mixed, a uniform mixture cannot be obtained because the viscosity of the two is poor. If the viscosity of the mixture cannot be lowered, as a result, when the mixture is sprayed from the nozzle, the mixture The particles will be solidified before forming, and the resin cannot be finely granulated

Method used

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Embodiment Construction

[0014] The present invention is further elaborated below in conjunction with specific embodiment:

[0015] The particle molding method of the present invention comprises the following steps:

[0016] (1) Make the high-pressure fluid and the pressure-deformed material dissolve in contact, and obtain a dissolved mixture with a viscosity below 100mPa·s in a static mixer; (2) Spray the dissolved mixture through a nozzle.

[0017] The pressure-deformable material and the high-pressure fluid are formed into a premix and mixed to an appropriate viscosity.

[0018] The pressure deformation material is polyester resin, phenol resin, polystyrene resin, polylactic acid resin.

[0019] 1. The high-pressure fluid mentioned is carbon monoxide (very toxic, use it as little as possible), carbon dioxide, a mixture of air and nitrogen, or an inert gas (such as argon), ethane (although ethane is an organic substance, it will vaporize at room temperature , do not have to produce liquid disc...

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PUM

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Abstract

The invention aims to provide a resin granule forming formula capable of well granulating a resin, a product manufacturing method and a carbon powder premix. The carbon powder premix comprises resin granules and a high-pressure fluid, wherein the granules comprise a pressure deformation material, and the pressure deformation material is dissolved when contacting the high-pressure fluid to form a dissolved-state mixture of which the viscosity is 100 mPa.s below. The pressure deformation material is a polyester resin, phenol resin, polystyrene resin or polylactic acid resin. The high-pressure fluid is a mixture of carbon monoxide, carbon dioxide, air and nitrogen, or one or mixture of several of inert gas, ethane and ammonia gas. When the high-pressure fluid contacts the pressure deformation material, the pressure generated by the high-pressure fluid promotes the pressure deformation material to be plasticized, so that the high-pressure fluid and the pressure deformation material are mixed uniformly, and the viscosity is lowered, thereby obtaining favorable resin granulating effect.

Description

technical field [0001] The invention relates to a carbon powder premix. Background technique [0002] The composition of the resin and its additives is melted and kneaded, solidified and crushed to make carbon powder in the form of particles. When the carbon powder is manufactured by this method, some particles with large particle sizes generated during the crushing are not easy to be removed, making it difficult to remove. The problem of poor chargeability and fixation performance. [0003] In order to solve this problem, in the toner manufacturing process in recent years, the colored resin solution is generally emulsified and dispersed to form an emulsion with non-water-soluble organic solvents such as polyester resin and colorant, and then mixed with the organic solvent. After being discharged, colored resin particles are formed, and carbon powder particles can be obtained after agglomeration. This method will discharge a large amount of organic solvents, which is n...

Claims

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Application Information

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IPC IPC(8): G03G9/08
Inventor 童华东
Owner GUANGDONG GUANGHAIDA IND
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