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Preparation method of dye composition for dyeing of fiber material

A technology of dye composition and fiber material, applied in the field of dye composition, can solve problems such as poor stability and low solubility

Inactive Publication Date: 2015-02-25
TIANJIN DEK CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of traditional dyes such as poor stability or low solubility or blackness during dyeing, printing and storage of fiber materials

Method used

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  • Preparation method of dye composition for dyeing of fiber material
  • Preparation method of dye composition for dyeing of fiber material
  • Preparation method of dye composition for dyeing of fiber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of a dye composition, comprising the steps of:

[0024] Fully pulverize the three kinds of dyes, Dekaisu Black B 250KG, Reactive Orange G 80KG, and Reactive Yellow 40KG, and then add them to a 2000L blending tank in sequence, then add 600KG of purified water, 9.45KG of dispersant NNO, 0.9KG of EDTA, phosphoric acid 1.5KG of sodium dihydrogen, 13.05KG of propylene glycol, 2.7KG of auxiliary agent M, and 2.4KG of auxiliary agent N were fully stirred for 2 hours, and after confirming that the stirring was uniform, samples were taken, and after passing the inspection, they were packaged to obtain a dye liquid composition of about 1000kg.

Embodiment 2

[0032] A preparation method of a dye composition, comprising the steps of:

[0033] Fully pulverize the three kinds of dyes, Dekaisu Black B 685KG, Reactive Orange G 280KG, and Reactive Yellow 145KG, and then add them to a 4000L blending tank, then add 1800KG of purified water, 28.35KG of dispersant NNO, 2.7KG of EDTA, phosphoric acid 4.5KG of sodium dihydrogen, 39.15KG of propylene glycol, 8.1KG of auxiliary agent M, and 7.2KG of auxiliary agent N were fully stirred for 2 hours. After the stirring was confirmed, samples were taken, and after passing the inspection, they were packaged to obtain a dye liquid composition of about 3000kg.

Embodiment 3

[0040] The preparation method of active orange G comprises the steps:

[0041]

[0042] Add 2500L of water to a 10-ton reaction tank, add 292KG of para-ester for beating for 2 hours, after beating, add 150KG of hydrochloric acid to the reaction tank, add 2000kg of ice, cool down to 0-5°C, and quickly add 30% sodium nitrite The solution was diazotized for 2 hours. During the diazotization reaction, always keep excess nitrous acid (with starch potassium iodide test paper). After the diazotization reaction is completed, remove excess nitrous acid with sulfamic acid.

[0043] Add 326KG 1-naphthylamine-4-sodium sulfonate to the diazonium salt, use soda ash solution to adjust the pH of the reaction solution to 5.5-6.0 and react for 2 hours to check whether the diazonium salt is excessive. If it is excessive, add 1-naphthylamine- The 4-sodium sulfonate reacted after the diazonium salt disappeared completely. That is, Active Orange G is produced.

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Abstract

The invention relates to a preparation method of a dye composition for dyeing of fiber materials. The method comprises the following steps: fully grinding three dyes including a component A, a component B and a component C, successively adding the components into a mixing tank, then adding a component F and a component D, fully stirring for 1-2 h, so as to prepare the dye composition. The component A is Deksol B (C.I. reactive black 5), the component B is active orange G, the component C is reactive yellow (C.I. reactive yellow 201), the component D is an auxiliary agent, and the component F is water. The dye composition prepared by the invention is not only environment-friendly but also has the advantages of high stability, good levelling property, high blackening degree, good low temperature water solubility, excellent fastness properties, and simple and feasible usage method.

Description

technical field [0001] The invention relates to a dye composition, in particular to an improved black liquid dye composition, which is suitable for dyeing cellulose fiber materials, especially relates to the padding and printing of energy-saving and environment-friendly dyes for cellulose fibers. Background technique [0002] Cellulose fiber fabric is one of the main raw materials of textiles. Cotton fabric is the representative used in many aspects such as clothing and accessories. Among them, black fabrics account for the main color system, and about 60% of the printing of cellulose products uses reactive dyes. First choice, which promotes the rapid development of reactive dyes. Compared with products printed with pigments, the products printed with reactive dyes have the characteristics of bright color, good color fastness, good hand feeling and strong adaptability. Their hue and performance are basically It meets the requirements of the market for cellulose fibers, but a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/26C09B62/51D06P1/38D06P1/613D06P3/66
Inventor 张兴华周顺茹武金娜李春颖靳欣妍
Owner TIANJIN DEK CHEM
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