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Easily-dispersible aluminum pigment used for ink and preparation method thereof

An easy-to-disperse aluminum pigment technology, applied in the field of aluminum pigments, can solve problems such as affecting ink adhesion, large dust, and weak solvent polarity

Inactive Publication Date: 2015-11-11
HEFEI SUNRISE PIGMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based aluminum pigments contain 30-40% of No. 200, No. 150, D40, D60 or D80 solvents. The disadvantages are as follows: 1. The solvent has a high boiling point and is not easy to volatilize in the ink system. After the coating is made, there are solvent residues, VOC It is easy to exceed the standard; 2. The polarity of the solvent is weak, which affects the adhesion of the ink to the substrate
The disadvantages of dry powder aluminum pigments are: large dust during construction; difficult to disperse in the ink system

Method used

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  • Easily-dispersible aluminum pigment used for ink and preparation method thereof
  • Easily-dispersible aluminum pigment used for ink and preparation method thereof
  • Easily-dispersible aluminum pigment used for ink and preparation method thereof

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preparation example Construction

[0026] refer to figure 1 , the preparation method of a kind of printing ink that the present invention proposes is easy to disperse aluminum pigment, comprises the steps:

[0027] S1. After cleaning the modified aluminum powder in an organic solvent, press dry to obtain a filter cake with a solid content of 80-85%;

[0028] S2. Put the filter cake in a kneader, then add aldehyde and ketone resin, wetting and dispersing agent, and antioxidant into the kneader and stir for 30-60 minutes to make it evenly mixed to obtain a mixed material;

[0029] S3. Put the mixed material in a vacuum oven, heat to 80-100° C. for vacuum drying, and volatilize the organic solvent to ≤ 1 wt%.

Embodiment 1

[0032] A kind of easily dispersible aluminum pigment for printing ink that the present invention proposes, its raw material comprises by weight percentage:

[0033]

[0034] Among them, the preparation method of the modified aluminum powder is as follows: put 800 mesh spherical aluminum powder and D80 in a ball mill with a ball-to-material ratio of 10:1, after ball milling for 6 hours, suction filter and dry to obtain the first material; add the first material After 3 hours of low-speed stirring in absolute ethanol, the speed of low-speed stirring is 500rpm, aging for 22 hours, and then drying to obtain the second material; based on the weight of the second material, add 2wt% polydimethylsiloxane to the second material Alkanes and 4wt% vinyltriethoxysilane were evenly mixed, then the temperature was raised to 40° C., kept for 5 hours, washed, and dried to obtain modified aluminum powder.

[0035] The preparation method of the above-mentioned ink that the present invention p...

Embodiment 2

[0040] A kind of easily dispersible aluminum pigment for printing ink that the present invention proposes, its raw material comprises by weight percentage:

[0041]

[0042] Among them, the preparation method of the modified aluminum powder is as follows: put 900 mesh spherical aluminum powder and D80 in a ball mill, the ball-to-material ratio is 8:1, after ball milling for 10 hours, suction filter and dry to obtain the first material; add the first material After 2 hours of low-speed stirring in absolute ethanol, the speed of low-speed stirring is 300rpm, aging for 20 hours, and then drying to obtain the second material; based on the weight of the second material, add 3wt% polydimethylsiloxane to the second material Alkanes and 3wt% vinyltriethoxysilane were evenly mixed, heated to 50°C, kept for 3 hours, washed, and dried to obtain modified aluminum powder.

[0043] The antioxidant is a combination of catechol and hydroquinone.

[0044] The preparation method of the abov...

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Abstract

The invention discloses an easily-dispersible aluminum pigment used for ink. The pigment comprises the following raw materials by weight: 80 to 90% of modified aluminum powder, 8 to 18% of aldehyde ketone resin, 1 to 2% of a wetting dispersant and 1 to 2% of an antioxidant. The invention also discloses a preparation method for the easily-dispersible aluminum pigment used for the ink. The easily-dispersible aluminum pigment used for the ink and the preparation method thereof provided by the invention have the following advantages: the preparation method is simple; the raw materials are easily available; and the obtained easily-dispersible aluminum pigment used for the ink has good dispersing property, is free of influence on adhesive force of the ink and is pollution-free, non-toxic and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of aluminum pigments, in particular to an easily dispersible aluminum pigment for ink and a preparation method thereof. Background technique [0002] Aluminum pigment, also known as aluminum powder pigment, refers to metal aluminum powder or aluminum paste with scaly particle structure, bright metallic luster and other pigment characteristics. It is an important variety of metal pigments, mainly used in paints and printing. Production of paints, paints, plastic materials, etc. [0003] With the continuous improvement of people's requirements for the quality of life and the living and development environment, the voice of "green packaging materials" in the packaging market is getting higher and higher, that is, to improve environmental protection performance, choose energy-saving, low-consumption, non-toxic, non-polluting, and easy-to-degrade non-toxic materials. Hazardous packaging materials. "Green packag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/037C09D11/103C09C1/64C09C3/12C09C3/08
Inventor 董前年徐瞳瞳张彩云马瑞朱双单
Owner HEFEI SUNRISE PIGMENTS
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