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A kind of liquid colorant and its application

A coloring agent and liquid technology, applied in application, layering/coating fertilizer, nitrogen fertilizer, etc., can solve problems such as easy aggregation of water-soluble colorants, misleading farmers, poor coloring effect, etc.

Active Publication Date: 2021-09-10
HUBEI XIANGYUN GROUP CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) The concentration of the fertilizer cannot be seen intuitively after dilution of the non-dyed fertilizer, which often misleads the farmers, and through the dyed fertilizer, the farmer can easily judge the concentration of the fertilizer by the depth of the color after dilution
[0008] However, conventional water-soluble colorants are easy to agglomerate, not only the coloring effect is not good, but also unstable when exposed to water.

Method used

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  • A kind of liquid colorant and its application
  • A kind of liquid colorant and its application
  • A kind of liquid colorant and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Put 0.8kg of coloring agent (lemon yellow), 1.2kg of industrial grade urea, and 1kg of industrial grade ammonium nitrate into a 20L plastic tank, then inject 8kg of water, turn on the stirring paddle, and stir at 20°C for 60s to obtain lemon Yellow liquid colorant. The colorant is transported to the fertilizer mixer by a diaphragm pump for spraying, so that the water-soluble fertilizer can be evenly dyed in color. See Table 1 and Figure 1-2 The heavy metal content and color comparison between the fertilizer using the coloring agent provided in this example (the dosage of tartrazine is 0.1‰) and the fertilizer using the conventional coloring agent (commercially available, the dosage is 3‰).

[0032] Table 1

[0033]

[0034] It can be seen from Table 1 that the heavy metal content (introduced by other raw materials) of the water-soluble fertilizer using the colorant provided in this example is much smaller than that of the water-soluble fertilizer using conventional ...

Embodiment 2

[0036] Put 0.8kg of coloring agent (bright blue), 1.4kg of industrial grade urea, and 0.8kg of industrial grade ammonium nitrate into a 20L plastic tank, then inject 7kg of water, turn on the stirring paddle, and stir at 30°C for about 80s to obtain bright Blue liquid colorant. The coloring agent is transported to the fertilizer mixer by a diaphragm pump for mixing, so that the water-soluble fertilizer is evenly dyed in color.

Embodiment 3

[0038] Put 1kg of coloring agent (Big Red), 1kg of industrial grade urea, and 1kg of industrial grade ammonium nitrate into a 20L plastic tank, then inject 9kg of water, turn on the stirring paddle, and stir at 25°C for 120s to obtain Dahong liquid coloring agent. Use a diaphragm pump to transport the colorant (the amount of bright red is 0.05‰ of the weight of the fertilizer) to the fertilizer mixer for spraying, so that the water-soluble fertilizer can be evenly dyed in color.

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Abstract

The invention discloses a liquid colorant and its application, belonging to the technical field of fertilizer colorants. The liquid colorant includes powdery raw materials and water, and the amount of water is 2-4 times the weight of the powdery raw materials; the powdery raw materials are mixed by the following raw materials in mass percentage: water-soluble colorant 20%-40% , urea 20%-50% and ammonium nitrate 20%-40%, water-soluble coloring agent is selected from tartrazine, bright blue, bright red or fruit green and so on. In addition, the liquid colorant can be used in fertilizers, and the dosage is 0.05-0.15‰ of the weight of the fertilizer based on the weight of the water-soluble colorant. The coloring agent has the advantages of less consumption, low price, good dyeing effect, strong stability and no pollution.

Description

technical field [0001] The invention belongs to the technical field of fertilizer colorants, in particular to a liquid colorant and its application. Background technique [0002] With the rapid development of chemical dyeing technology, it has been widely used in all walks of life, and dyeing technology has also been fully applied in the field of chemical fertilizer production technology. Some chemical fertilizer manufacturers add some dyes or coloring agents in the process of fertilizer production, on the one hand to prevent others from counterfeiting their own brands, and on the other hand to improve the appearance and color of fertilizers. Colorants generally used for fertilizer dyeing are divided into water-soluble and oil-soluble. Most of the colorants are composed of dyes or pigments and organic solvents, and most of these substances contain aromatic hydrocarbon organic matter, heavy metals, etc. These substances are accompanied by The application of fertilizer, enter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G5/30
CPCC05C1/00C05G3/00C05C9/00
Inventor 查忠源张雄风黄忠何俊叶良俊查炎华高婷
Owner HUBEI XIANGYUN GROUP CHEM
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