Active dark blue to black dye composition and dye product

A technology of black dye and reactive navy blue, applied in the field of reactive dye compositions and dye products, can solve the problems of low washing fastness, low dyeing rate and fixation rate, poor lifting power, etc.

Active Publication Date: 2021-03-30
ZHEJIANG KEYONG CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Reactive black KNB has become the largest variety of black reactive dyes due to its low price, good fastness and easy washing. The disadvantage of KNB, dye researchers have done a lot of work in the research and development of reactive black dyes in recent years
The existing reactive black dye color matching products still have problems such as poor lifting power and low washing fastness in the actual application process, such as patents CN100582168A, CN1730566A, etc.

Method used

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  • Active dark blue to black dye composition and dye product
  • Active dark blue to black dye composition and dye product
  • Active dark blue to black dye composition and dye product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0194] (1) Diazotization:

[0195] Put 23.0g (0.1mol) of 4-acetamido-2-aminobenzenesulfonic acid into 100g of water and 100g of ice for beating for about 1 hour, then add 20g of 31% hydrochloric acid (containing 0.17mol of HCl), add 24g of 30 within 20-30min % sodium nitrite solution (containing sodium nitrite 0.104mol), control pH = 0.5-2.0, temperature T = 0-20°C for diazotization reaction for 1-2 hours, and detect with ethanol solution of 4-dimethylaminobenzaldehyde End point (that is, no discoloration within 5s). After the end point of diazo is reached, excess sodium nitrite is eliminated with sulfamic acid, and the obtained diazonium solution of 4-acetylamino-2-aminobenzenesulfonic acid is preserved for future use.

[0196] Put 56.2g (0.2mol) of para-ester (p-β-hydroxyethyl sulfone sulfate aniline) into 200g of water and 200g of ice for beating for about 1 hour, then add 35g of 31% hydrochloric acid (containing 0.3mol of HCl), and mix in 20- Add 48g of 30% sodium nitrit...

Embodiment 2～66

[0203] Referring to the preparation method of the azo dyes described in Example 1, the dye compounds with the structures shown in the following Table 1 can be prepared respectively through step-by-step diazo and coupling reactions using intermediate raw materials well known in the art.

[0204] Table 1

[0205]

[0206]

[0207]

[0208]

[0209]

[0210]

[0211]

[0212]

[0213]

[0214]

[0215]

[0216]

[0217]

[0218]

[0219]

[0220]

Embodiment 67

[0222] Mechanically mix 25 parts of the dye of formula (I-1), 75 parts of the dye of formula (II-1) and 10 parts of antalanthum, and the obtained composite dye is dyed black in cotton by conventional exhaust dyeing method, and is particularly resistant to washing and staining. The color fastness to staining of nylon and wool is above grade 4 (refer to ISO 105 C10-2006), and the lifting power and color fixing rate are excellent (refer to GB / T21875-2016 and GB / T2391-2014).

[0223]

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PUM

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Abstract

The invention discloses an active dark blue to black dye composition and a dye product. The active navy blue to black dye composition comprises a component A and a component B. The component A is selected from one or more dye compounds shown as a formula (I) or alkali metal salts thereof, and the component B is selected from one or more dye compounds shown as a formula (II) or alkali metal salts thereof. Based on the component A and the component B, the mass percentage of the component A is 5-50%, and the mass percentage of the component B is 50-95%. The invention provides an active navy blue-to-black dye product. The active navy blue-to-black dye product contains the active navy blue-to-black dye composition. The active navy blue-to-black dye composition and the dye product have the characteristics of good fastness to washing, high fixation rate, good lifting power and the like, and are suitable for printing and dyeing nitrogen-containing and / or hydroxyl-containing fiber materials andblended fabrics of the nitrogen-containing and / or hydroxyl-containing fiber materials.

Description

[0001] (1) Technical field [0002] The invention relates to a reactive dye composition and a dye product, in particular to a reactive navy blue to black dye composition and a dye product suitable for printing and dyeing nitrogen-containing and / or hydroxyl-containing fiber materials. [0003] (2) Background technology [0004] Reactive black KNB has become the largest variety of black reactive dyes due to its low price, good fastness and easy washing. The disadvantage of KNB, dye researchers have done a lot of work in the research and development of reactive black dyes in recent years. The existing reactive black dye color matching products still have problems such as poor lifting power and low washing fastness in the actual application process, such as patents CN100582168A, CN1730566A, etc. [0005] (3) Contents of the invention [0006] In order to solve the above problems, the object of the present invention is to provide a reactive navy blue to black dye composition and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22D06P1/384D06P3/66
CPCC09B67/0059D06P1/384D06P3/666
Inventor 何旭斌王专何权辉赵朋沈建良方舒逸
Owner ZHEJIANG KEYONG CHEM CO LTD
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