Reactive dye compounds

A reactive dye and high-efficiency technology, applied in the direction of reactive dyes, azo dyes, organic dyes, etc., can solve the problems of dye retention, achieve high color intensity, improve affinity, and simplify the effect of soaping process

Inactive Publication Date: 2001-07-11
THE PROCTER & GAMBNE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, an urgent problem still faced by the fabric dye industry at present is the l

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example

[0140] Examples Example 1 Synthesis of monothioglycolato-nicotinic acid triazine dye using Procion (RTM) dye as a starting material

[0141] The synthesis route as described in Reaction Scheme 1 is used to prepare monothioglycolato-nicotinic acid triazine dye.

[0142] The synthesis method consists of two parts, namely the first part for preparing monochloromonothioglycolato triazine and the second part for preparing monothioglycolato mononicotinic triazine as shown in the following reaction mechanism.

[0143] In this reaction route, D is a chromophore and varies according to the starting dye used. In this example, various Procion (RTM) dyes commercially available from BASF were used as starting materials, particularly Procion Red MX-8B, Procion Yellow MX-8G, and Procion Blue MX-2G. Synthesis of monochloromonothioglycolato triazine dye

[0144] The first part of the synthesis method is to obtain monochloro-monothioglycolato triazine. Prepare purified Procion (R...

Example Embodiment

[0148] Example 2 Synthesis of monothioglycolato-isonicotinyl triazine dye

[0149] The synthesis route described in Reaction Scheme 2 was used to prepare monothioglycolato-isonicotinyl triazine dye.

[0150] Reaction route 2

[0151] In this reaction route, D is a chromophore and varies according to the starting dye used. In this example, Procion (RTM) Red MX-8B was used as the starting material. The Procion(RTM) Red MX-8B in this embodiment can be replaced by other dichlorotriazine dyes such as Procion Yellow MX-8G or Procion Blue MX-2G.

[0152] The synthesis method consists of two parts, the first part of preparing monochloromonothioglycolato triazine dye and the second part of preparing monothioglycolato-isonicotinyl triazine dye. Synthesis of monochloromonothioglycolato triazine dye

[0153] The monochloromonothioglycolato triazine dye was prepared in the same manner as described in Example 1 above and using the same Procion starting dye. Synthesis of Monot...

Example Embodiment

[0155] Example 3 Synthesis of monothioglycolato-(diazabicyclooctane) triazine dye

[0156] The synthesis route described in Reaction Scheme 3 was used to prepare monothioglycolato-(diazabicyclooctane) triazine dye.

[0157] Reaction route 3

[0158] In this reaction route, D is a chromophore and varies according to the starting dye used. In this example, Procion (RTM) Red MX-8B was used as the starting material.

[0159] The synthesis method consists of two parts, the first part of preparing monochloromonothioglycolato triazine dye and the second part of preparing monothioglycolato-DABCO triazine dye. The monochlorothioglycolatotriazine was prepared in the same manner as in Example 1 above.

[0160] In the second part of the synthesis method, the monochloromonothioglycolato triazine dye synthesized from the first part is reacted with diazabicyclooctane (DABCO). 0.01 mol of monochloromonothioglycolato triazine dye was added to the flask along with 0.03 mol of DABCO ...

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PUM

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Abstract

Reactive dye having a Fixation Value (F) on cellulosic substrates of 95% or greater as measured by the Fixation Value Technical Test Method (at 2:1 standard depth). In addition, the compounds herein have high Exhaustion Values (E), high Efficiency Values (T) and show significant improvements in terms of reducing spent dyestuff in effluent, increasing dye affinity to the substrate, increasing the dye-substrate covalent bonding, increasing the ability to dye substrates at room temperature, decreasing the amount of dye that is removed during the post dyeing ''soaping off process'' and therefore simplifying the post dyeing ''soaping off process'' traditionally associated with dyeing cotton with fibre reactive dyes and reduction of staining of adjacent white fabrics. In addition, the compounds prepared above provide more intense dyeings and require less levels of salt for dyeing cotton substrates.

Description

Technical field [0001] The present invention relates to reactive dye compounds. The present invention particularly relates to reactive dye compounds with improved dye bath exhaustion rate (E) and improved dye-fiber covalent fixation rate (F). Background of the invention [0002] The use of reactive dye compounds to dye various substrates is known in the art. Such substrates include, for example, protein materials such as keratin, which is present in hair, skin and nails, and various animal body parts such as horns, hooves, and feathers, and other natural protein-containing materials such as silk and carbohydrate-derived materials such as fibers. And cellulose derivatives, such as natural products such as cotton, and synthetic fibers such as polyamide. [0003] Examples of such reactive dyes known in the art include those containing mono- or dichloro- or fluoro-1,3,5-triazinyl, mono- or dichloro- or fluoro-pyrimidinyl, β-halo-propionyl, β- Haloethyl-sulfonyl, β-haloe...

Claims

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Application Information

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IPC IPC(8): C09B67/00C09B62/02C09B62/04C09B62/20C09B62/44C09B62/503
CPCC09B62/4401C09B62/20C09B62/02
Inventor 厄尔・D・布罗克戴维・M・刘易斯塔尔・I・尤萨夫
Owner THE PROCTER & GAMBNE CO
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