Water-based paint dispersing technology

A water-based paint and dispersion technology, applied in the direction of pigment slurry, etc., can solve the problems of difficulty in grinding fineness of 15μm, difficulty in cleaning and color changing, low production efficiency, etc., to achieve high product quality, high quality, and reduce the use of additives Effect

Active Publication Date: 2013-07-03
PETER LACKE SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has low production efficiency when processing synthetic pigments that are difficult to disperse due to fine particles such as carbon black
However, because the grinding fineness of the horizontal ball mill is difficult to reach below 15 μm, and it is difficult to clean and change colors, it is not suitable for processing high-precision paint pulp and frequently changing designs and varieties.

Method used

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  • Water-based paint dispersing technology
  • Water-based paint dispersing technology
  • Water-based paint dispersing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A kind of white water-based paint color paste, after preliminary pre-dispersion (as shown in 2), enters such as figure 1 The water-based paint is shown in the dispersion process flow channel. After passing through the filter screen of the first flow channel (as shown in ①) (as shown in 1), it reaches the Figure 4 In the inlet end (as shown in 9) of the second flow channel (as shown in ②) of the garden platform type shown, the white water-based paint color paste passes through the second flow channel in a very short time under the pressure of the 250bar pressure pump. Connect the outlet end (as shown in 8) of the third runner (as shown in ③) to extrude, under the action of great shearing force, the particles (as shown in I) of white water-based paint color paste agglomeration are formed Such as Figure 7 The turbulence or vortex shown break away from the gravitational effect between each other to achieve the dispersion effect (as shown in II), and enter the serpentine...

Embodiment 2

[0061] An orange water-based paint color paste, after preliminary pre-dispersion, enters such as figure 2 As shown, there are two process units (as shown in 5 and 6) in the water-based paint dispersion process flow channel. After filtering through the filter screen (as shown in 1) of the first process unit (as shown in 5), it reaches the inlet end of the second flow channel of the first process unit's conical shape. Under the action of pressure, after a very short time, it is extruded from the outlet end of the second flow channel of the first process unit connected to the third flow channel. Or get rid of the gravitational effect between each other in the eddy current to reach a certain degree of dispersion, and then enter the next process unit (single process unit process such as Figure 5 Shown); enter into the serpentine flow channel that connects the 3rd flow channel of the second process unit after being further dispersed through the next process unit (as shown in 6) t...

Embodiment 3

[0063] A phthalo-green water-based paint color paste, after pre-dispersion, enters such as image 3 As shown, there are 5 process units (shown as 5, 6, and 7) in the water-based paint dispersion process flow channel. After being filtered by the filter screen of the first channel of the first process unit, it reaches the second channel of the conical shape of the first process unit, such as Figure 6 In each of the sub-channels shown, the phthalo-green water-based paint color paste is extruded from the outlet ports of the multiple sub-channels connecting the second channel to the third channel after a very short period of time under the pressure of the 700bar pressure pump. Under the action of great shearing force, the agglomerated particles of phthalo-golden slurry break away from the gravitational force between each other in turbulence or vortex, enter the next process unit, and continue to disperse; after 5 process unit cycle operations Finally, the third flow channel that ...

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Abstract

The invention relates to a paint dispersing technology, in particular to an energy-saving and environmentally friendly water-based paint dispersing technology. The technology comprises the following steps: the predispersed water-based paint paste is squeezed to the second runner from the first runner under a certain pressure and is released instantaneously in the third runner; and after passing through the third runner, the paint paste is collected to obtain the finished water-based paint paste. By adopting the technology, the defects of the existing preparation technology of water-based paint such as long cycle and low efficiency can be overcome. By adopting the new dispersing technology, the production cycle can be short, the energy consumption can be reduced, the raw material can be fully utilized, the production cost can be reduced and high-quality product can be obtained, thus the technology is an ideal production technology of water-based paint.

Description

technical field [0001] The invention belongs to the field of paint production technology, and relates to a water-based paint dispersion process, in particular to an environment-friendly and energy-saving water-based paint dispersion process. Background technique [0002] The traditional water-based paint production process is to mix resin (emulsion), pigments, additives and solvents together for grinding and dispersion. During the grinding process, in order to prevent the flocculation and drying tendency of the pigment in the color paste, the increase of the grinding resin content generally makes the grinding operation of the color paste easier. However, from a theoretical point of view, the dispersion of the colorant without grinding resin is the most ideal situation, because in the absence of grinding resin, limited compatibility problems and possible adverse effects on coating performance can be prevented. [0003] The selection of grinding equipment plays an important r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D17/00
Inventor 温伟贺霄洁杜瑞王翔盛夕军
Owner PETER LACKE SHANGHAI
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