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Monoazo dye compound and orange to red dye composition

A technology of monoazo dyes and red dyes, which is applied in the field of orange to red dye compositions, can solve the problem of high price, and achieve the effects of low cost, excellent application effect and excellent fastness to sublimation

Inactive Publication Date: 2012-06-27
浙江龙盛染料化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its price is relatively high, which cannot be afforded by ordinary customers. Therefore, providing red dye products with excellent quality and high cost performance has become the focus of development

Method used

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  • Monoazo dye compound and orange to red dye composition
  • Monoazo dye compound and orange to red dye composition
  • Monoazo dye compound and orange to red dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Diazo process

[0058] In a 250ml flask, add 38g of water, 70g of 31% hydrochloric acid, and 20.7g (percentage) of p-nitroaniline, and beat for 2 hours at 20-30°C. After beating, add 120g of ice, add 36g of 30% sodium nitrite solution at one time, and continue to stir and react for 3 hours within the range of 0-5°C.

[0059] (2) Coupling process

[0060] In a large beaker of 2000ml, add 1000g of water, 1g of Pingpingjia, 1g of sulfamic acid, 39.9g (percentage) of N-ethyl-N-methoxycarbonylmethyl-m-acetamidoaniline (raw material 2), Stir and beat for 30-45 minutes, and control the temperature at 15-25°C. After the beating is completed, the ice bath is cooled to 0-5°C and kept warm, and the heavy nitrogen solution is added dropwise within 1.5 hours. After the dropwise addition of diazo is completed, continue the heat preservation reaction for 2 hours, heat up to 50° C. for another 1 hour heat preservation, filter with suction, and wash with water to PH=6 to 7 to obt...

Embodiment 2～20

[0064] According to the preparation method described in Example 1, the raw material 2 is replaced by the components shown in Table 1 in equimolar amounts, and the dye compound according to the present invention can be prepared.

[0065] Table 1

[0066]

[0067]

Embodiment 13

[0069] 58 grams of component A of formula (I-1), 42 grams of component B of formula (III-1), 200 grams of dispersant MF, and 800 grams of water were blended, ground, dispersed and dried to obtain the finished product. The dye can provide red color with excellent fastness properties to the fabric.

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Abstract

The invention provides a monoazo dye compound with a structure shown as a formula (I) and application thereof, and an orange to red dye composition containing the monoazo dye compound. The disperse orange to red monoazo dye and the dye composition thereof are commercialized to be supplied for dyeing in a liquid state and an emulsifiable paste state after being micro-granulated, or in a powder state and a particle state after being dried through a spray drying method and the like; can be applied to dyeing of dacron, acetate, acrylic fibers, polyester, mixture yarn and other hydrophobic fiber materials so as to obtain dyeing products with bright color, and excellent washing fastness, light resistant, color fastness to sublimation; have low cost and excellent application effect; and are rare products with huge application prospect. The formula (I) is shown in the description.

Description

[0001] (1) Technical field [0002] The invention relates to a monoazo dye compound and its application, and an orange to red dye composition containing the monoazo dye compound. (2) Background technology [0003] With the improvement of people's living standards and the continuous development of textile fabrics, higher requirements have been put forward for the dyeing performance and ecological environmental protection performance of textile chemical dyes. Important considerations in the selection of dye-on-dye hydrophobic fiber materials. [0004] At present, there are not many high-quality red dyes in the dyeing of polyester superfine fabrics and polyester blended fabrics. In terms of high washing fastness, Ciba WW series dyes are the first to be used, whether red is used alone or combined with other dyes. Mixed, can ensure a high washing fastness to fading. However, its price is relatively high, which cannot be afforded by ordinary customers. Therefore, providing red dye...

Claims

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Application Information

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IPC IPC(8): C09B56/00C09B67/22C09B67/36C09B67/38D06P1/19D06P1/18D06P3/54
Inventor 蒋应海祝培明高怀庆
Owner 浙江龙盛染料化工有限公司
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