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Water-oil universal color paste and preparation method thereof

An oil-based and colorant technology, applied in the direction of pigment paste, etc., can solve the problems of high cost, unfriendly environment, high production cost, etc., and achieve the effect of improving production efficiency, reducing production cost and being easy to promote

Inactive Publication Date: 2018-12-28
MINGHAI CHEM ENTERPRISE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent application CN200910030164.8 uses multiplier, wetting and dispersing agent, defoamer and co-solvent to prepare water-oil universal iron oxide color paste, but the main solvent used is still organic matter such as propylene glycol and pyrrolidone, which is not friendly to the environment , and the production cost is high; patent application 201410189219.0 discloses a kind of water-oil dual-purpose color paste, which adopts toner, solvent, nonionic surfactant, preservative to prepare water-oil dual-purpose color paste, but it adopts solvent as Ethylene glycol is an organic substance with high cost

Method used

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preparation example Construction

[0039] Correspondingly, the present invention also discloses a preparation method of the above-mentioned water-oily universal color paste, comprising:

[0040] (1) Feed into the dispersion tank according to the first dispersant ratio, stir and disperse evenly to obtain the first dispersant;

[0041] (2) feeding into the dispersion tank according to the second dispersant formula, stirring and dispersing evenly to obtain the second dispersant;

[0042] (3) According to the formula, put in the dispersion tank in sequence: water, co-solvent, the first dispersant, the second dispersant, anti-fungal agent and defoamer; put in the pigment after stirring evenly;

[0043] After uniformly dispersing water, dispersant, co-solvent and other additives, and then adding pigment, the pigment can be evenly dispersed in the color paste, thereby improving the uniformity of the color paste and ensuring the quality of the color paste.

[0044] (4) After stirring and dispersing evenly, the finishe...

Embodiment 1

[0049] The present embodiment provides a water-oily universal color paste, comprising the following raw materials in parts by weight: 40.8 parts of water, 3 parts of cosolvents, 0.2 parts of antifungal agent, 1.5 parts of defoaming agent, 11.5 parts of the first dispersant, the second 10 parts of two dispersants; 33 parts of pigments.

[0050] Among them, the pigment is titanium dioxide, the antifungal agent is poly-5-chloro-2-methyl-4-isothiazolin-3-one compound, the cosolvent is isopropanol, and the defoamer is silicone mineral oil and hard fatty acid A mixture of silicone mineral oil: hard fatty acid = 7:3.

[0051] The first dispersant includes 50 parts by weight of PEG and 50 parts of diethanolamine, wherein PEG is PEG-600.

[0052] The second dispersant includes 45 parts of polyoxyethylene sorbitan fatty acid ester in parts by weight; 35 parts of propylene glycol block polyether; 20 parts of fatty alcohol polyoxyethylene ether; wherein, polyoxyethylene sorbitan fatty ac...

Embodiment 2

[0059] The present embodiment provides a water-oily universal color paste, which comprises the following raw materials in parts by weight: 38 parts of water, 5 parts of cosolvent, 0.8 part of antifungal agent, 1 part of defoamer, 14.2 parts of the first dispersant, the second 15 parts of two dispersants; 26 parts of pigments.

[0060] Among them, the pigment is organic carbon black, the antifungal agent is poly 5-chloro-2-methyl-4-isothiazolin-3-one compound, the cosolvent is isopropanol, and the defoamer is silicone mineral oil and hard A mixture of fatty acids, the specific ratio of which is silicone mineral oil: hard fatty acid = 5:5.

[0061] The first dispersant includes 55 parts of PEG and 45 parts of diethanolamine in parts by weight, wherein PEG is PEG-800.

[0062] The second dispersant includes 60 parts of polyoxyethylene sorbitan fatty acid ester in parts by weight; 15 parts of propylene glycol block polyether; 25 parts of fatty alcohol polyoxyethylene ether; where...

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Abstract

The invention relates to the field of coatings and provides a water-oil universal color paste prepared by a reasonable dispersant system. A hydrophilic nonionic surfactant is used as a first dispersant, and a second dispersing agent synergistically interacting with the first dispersing agent is adopted, so that a pigment can be sufficiently dispersed in a water-oil system. At the same time, wateris adopted as a main solvent, and the paste is environmentally friendly and free of toxicity. The color paste production cost is reduced. A preparation method of the water-oil universal color paste isfurther provided. The process is simple and feasible and easy to popularize.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a water-oily universal color paste and a preparation method thereof. Background technique [0002] Color paste is a concentrated pigment paste, which is prepared by using different pigments, through surface treatment and packaging of pigments, and through specific processing techniques. Color paste is a semi-finished product made of pigment or pigment and filler dispersed in paint. The oil-based color paste with pure oil as the adhesive is called oil-based color paste, and the pigment-filler paste dispersed with water as the medium is called water-based color paste. Oil-based colorants can only be applied to oil-based systems, and water-based colorants can only be applied to water-based systems; when an enterprise produces oily and water-based products at the same time, it is necessary to purchase water-based colorants and oil-based colorants separately, causing great harm to the enterpr...

Claims

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Application Information

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IPC IPC(8): C09D17/00
CPCC09D17/003C09D17/008
Inventor 谭锦雄
Owner MINGHAI CHEM ENTERPRISE
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