Yellow colorant for fertilizer coloration

Abstract

The invention relates to a yellow colorant for fertilizer coloration, comprising components by weight percentage of: 5-100 percent of lemon yellow, 0-75 percent of toner, 0-5 percent of antiseptic and 0-95 percent of solvent, wherein the chemical name of the lemon yellow is 1-(4-sulfophenyl)-4-(4-azosulfophenyl)-5-pyrazolone-3-carboxylic acid trisodium salt; the lemon yellow, the toner, the antiseptic and the solvent are added to a reaction kettle; and all of the components are stirred for 25-35min by steam heating for uniformly mixing and solving to obtain the yellow colorant for the fertilizer coloration. In the invention, the yellow colorant has the advantages of low cost, low using amount, no pollution, easy production and the like; simultaneously, the colored fertilizer produced by the yellow colorant is easy to popularize and use.

Description

technical field [0001] The invention relates to the field of chemical fertilizer dyeing, in particular to a yellow dyeing agent for chemical fertilizer dyeing. Background technique [0002] In order to make the fertilizers produced by them easier to sell, chemical fertilizer manufacturers generally dye the fertilizers to make them have a consistent product appearance and mark the fertilizers. One method of dyeing is to dye the process products during the fertilizer production process. However, there are not many dyes and pigments suitable for the fertilizer production process, especially natural dyes. The dyeing substance should be resistant to changes in acid and alkali in subsequent chemical reactions, high temperature and high pressure, and will not change color or fade. Or choose a suitable dyeing agent addition point. The temperature, pH, and pressure of the adding point should be within the physical and chemical indicators of the dyeing agent to ensure that the dyein...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of polluting the environment and harmful to human health by using synthetic dyes, and to provide a yellow dyeing agent for chemical fertilizer dyeing, because the yellow dyeing agent has no pollution to the environment and is biodegradable It also has the advantages of low cost, low consumption, no pollution, rich sources of raw materials and easy production.