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Preparation method of environmentally friendly non-floating aluminum paste pigment

An aluminum-silver paste, non-leafing technology, applied in the direction of pigment paste, fibrous filler, dyeing physical treatment, etc., can solve the problems of body injury, etc., and achieve the effect of safe use, good protection effect, and simple production process

Inactive Publication Date: 2014-01-15
SHANGHAI TITANOS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the prior art non-leafing aluminum-silver paste pigments is: the heavy metal substances and polycyclic aromatic hydrocarbons contained in the pigments are harmful to the human body; because the aluminum-silver paste pigments are widely used, they have a wide range of effects on human health. This is a technical problem that has been difficult to solve for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation method of environmentally friendly non-floating aluminum-silver paste pigment, the steps are as follows:

[0043] 1. Preparation of solvent: take 3 kg of butyl acetate; 2 kg of methyl ethyl ketone; 2 kg of methyl isobutyl ketone; 3 kg of ethanol and mix well.

[0044] 2. Ball milling: Take 10 kilograms of spherical aluminum powder and mix it in 10 kilograms of solvent. Stir slowly for 20 minutes until uniformly mixed. Put into a ball mill for grinding, the ball mill rotates at 37 revolutions per minute, the internal temperature is 50-55°, and the casing temperature is 40-45° to make flake particles; the pigment flake particle suspension is transported to the storage material through the pipeline with vacuum pressure Tank precipitation.

[0045] 3. Sieving: Put the ball milled product into a sieving machine with a screen mesh of 100 meshes to obtain flake pigments; the sieved pigment suspension is transported to the storage tank for precipitation by vacuum air ...

Embodiment 2

[0051] The preparation method of environmentally friendly non-floating aluminum-silver paste pigment, the steps are as follows:

[0052] 1. Preparation of solvent: take 3 kg of butyl acetate; 2 kg of methyl ethyl ketone; 2 kg of methyl isobutyl ketone; 3 kg of ethanol and mix well.

[0053] 2. Ball milling: Take 8 kilograms of spherical aluminum powder and mix it in 10 kilograms of solvent. Stir slowly for 15 minutes until uniformly mixed. Put into a ball mill for grinding, the ball mill rotates at 37 revolutions per minute, the internal temperature is 50-55°, and the casing temperature is 40-45° to make flake particles; the pigment flake particle suspension is transported to the storage material through the pipeline with vacuum pressure Tank precipitation.

[0054] 3. Sieving: Put the ball milled product into a sieving machine with a screen mesh of 400 meshes to obtain flake pigments; the sieved pigment suspension is transported to the storage tank for precipitation by vacuum air p...

Embodiment 3

[0060] The preparation method of environmentally friendly non-floating aluminum-silver paste pigment, the steps are as follows:

[0061] 1. Preparation of solvent: take 3 kg of butyl acetate; 2 kg of methyl ethyl ketone; 2 kg of methyl isobutyl ketone; 3 kg of ethanol and mix well.

[0062] 2. Ball milling: Take 6 kilograms of spherical aluminum powder and mix it in 10 kilograms of solvent. Stir slowly for 10 minutes until uniformly mixed. Put into a ball mill for grinding, the ball mill rotates at 37 revolutions per minute, the internal temperature is 50-55°, and the casing temperature is 40-45° to make flake particles; the pigment flake particle suspension is transported to the storage material through the pipeline with vacuum pressure Tank precipitation.

[0063] 3. Sieving: Put the ball milled product into a sieving machine with a screen mesh of 500 meshes to obtain particle size flake pigments; the sieved pigment suspension is transported to the storage tank for precipitation b...

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Abstract

The invention which belongs to the field of aluminum paste pigments discloses a preparation method of an environmentally friendly non-floating aluminum paste pigment. Non-floating aluminum paste pigments prepared with the prior art have a defect that the pigments which contain heavy metal substances and polycyclic aromatic hydrocarbons are harmful to human bodies. The preparation method of the invention comprises the following steps: 1, mixing spherical aluminum powder in a solvent according to a weigh ratio of 1:1, placing them in a bowl mill, grinding to prepare platy grains with the rotating speed of the bowl mill of 37rpm and the temperature in the bowl mill of 50-55DEG C; 2, screening: placing the platy grains in a screener to obtain pigment flakes with different grain sizes; 3, press-filtering: placing the pigment flakes in a press filter, and separating out the solvent to obtain a solid filter cake; and 4, adding a solvent and a cosolvent to the solid filter cake, placing them in a kneader, and kneading to prepare the aluminum paste pigment containing 65 wt% of the solid and 35wt% of the solvent. The environmentally friendly non-floating aluminum paste pigment has the advantages of no harm to the human bodies because of the safe use, wide application because the aluminum paste pigment can be used by cooperating with various base materials, durability and good protection effect of a film of the aluminum paste pigment, simple production technology, and low cost.

Description

Technical field [0001] The invention belongs to aluminum-silver paste pigments, in particular to a preparation method of environmentally-friendly non-floating aluminum-silver paste pigments. Background technique [0002] Aluminum-silver paste pigment is an important and indispensable metal pigment in modern industrial products. The main components are aluminum flake particles and solvent, which are paste-like. Its characteristics are that the surface of the aluminum sheet is smooth and flat, the particle size distribution is concentrated, the shape is regular, and it has excellent light reflection ability and metallic luster. It can be used alone in paint, ink, and plastic to produce a silver metallic effect; it can also be used with other pigments. , Produce gold and other metallic effects of different colors. The aluminum-silver paste pigments can be evenly arranged in parallel up to 12 layers in general protective coatings, and the sheets are closed by the base material. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/64C09C3/04C09C3/08C09C3/10C09D17/00
Inventor 杨涛
Owner SHANGHAI TITANOS IND