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Apparatus for grinding and dispersing organic dyestuff

A technology for grinding and dispersing organic pigments is applied in the field of producing organic pigment grinding and dispersing devices for light resistance modulation of color filter pigments of liquid crystal displays, which can solve the problems of large energy consumption, long production cycle and blockage.

Active Publication Date: 2007-10-03
BOE TECH GRP CO LTD
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  • Abstract
  • Description
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Problems solved by technology

However, the equipment requires high viscosity of the material, otherwise the normal dispersion effect cannot be achieved, but the material with too high viscosity cannot guarantee that the pigment can meet the requirements of the particle size distribution range in a short time. When the production cycle is long, the energy consumption is huge
[0007] In addition, the vertical dispersing equipment in the prior art places the material cylinder vertically. When dispersing the mixture of organic pigments with high viscosity, due to the effect of gravity, the dispersion efficiency is low and the so-called clogging phenomenon is easy to occur.

Method used

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  • Apparatus for grinding and dispersing organic dyestuff
  • Apparatus for grinding and dispersing organic dyestuff
  • Apparatus for grinding and dispersing organic dyestuff

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Embodiment Construction

[0032] Fig. 1 is a schematic structural view of the organic pigment grinding and dispersing device of the present invention, the main structure includes a grinding cylinder 1, a rotating shaft 2 and a blade group 3, and the grinding cylinder 1 is provided with a cooling structure to maintain a certain temperature in the inner cavity and make it high along the axial direction One end of the rotating shaft 2 is inserted into the inner cavity of the grinding cylinder 1, and a plurality of blade groups 3 are fixed in sequence. Each blade set 3 has a plurality of grinding blades 31 uniformly distributed along the circumference of the rotating shaft 2 , and a through hole 311 is disposed on the surface of each grinding blade 31 . In the above structure, the distance between blade groups 3 can be the same or different, and the number of grinding blades 31 in each blade group 3 is determined according to the material properties, and can be 6-24.

[0033] The present invention adopts c...

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Abstract

A grinding-dispersing apparatus of the organic pigment used for color filter of LCD is composed of a grinding cylinder with a constant temp in its internal cavity and vibrating longitudinally at a certain frequency, a rotary shaft inserted in said grinding cylinder, and several blade groups fixed sequentially to said rotary shaft and consisting of the perforated grinding blades arranged radially and uniformly. Said pigment is stirred, impacted and sheared.

Description

technical field [0001] The invention relates to a grinding device, in particular to an organic pigment grinding and dispersing device for producing liquid crystal display color filter pigment photoresist modulation. Background technique [0002] Usually, the particle size of the organic pigment after the initial synthesis is coarse, generally distributed in a wide particle size distribution range of 10-200 μm, because the particle size of the pigment particle directly affects its coloring strength, transparency, heat resistance, light resistance and solvent resistance. , so the pigment after the initial synthesis cannot be directly used to modulate the pigment photoresist for the coating of the color filter of the liquid crystal display. At the same time, when the crude pigment is ground, if the dispersion of the pigment is insufficient, it will have a negative impact on the quality stability, viscosity, gloss, transparency and other properties of the pigment photoresist for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/00B02C17/18B02C17/20
Inventor 杨久霞李宏彦吕艳英
Owner BOE TECH GRP CO LTD
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