Reactive yellow dye compound as well as preparation method and application thereof

A technology of dye compound and reactive yellow, which is applied in the field of reactive yellow dye compound and its preparation and application, can solve the problems of good alkali resistance, high reactivity, and poor alkali resistance of covalent bonds, and achieve excellent color fastness, durability Good alkalinity, bright color effect

Active Publication Date: 2018-06-01
ZHEJIANG KEYONG CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Reactive dyes containing vinylsulfone active groups have high reactivity, and the covalent bonds formed are not alkali-resistant and easy to hydrolyze; reactive dyes containing monochloro-s-triazine and vinylsulfone heterobiactive groups have good alkali resistance but have the problem of wind printing ; Existing reactive yellow dyes containing a chloro-s-triazine active group on the market still have problems such as not bright enough shade, alkali resistance, low lifting power, and poor color fastness after printing, such as open patents GB1361250A, GB1271226A and JPH06136281A Wait

Method used

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  • Reactive yellow dye compound as well as preparation method and application thereof
  • Reactive yellow dye compound as well as preparation method and application thereof
  • Reactive yellow dye compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Primary condensation: 500g of ice water is added to a 1000ml beaker, 20.3g of cyanuric chloride (0.11mol) is put into the beaker for 1 hour, and 20.7g of 4-sulfonic acid-1,3-phenylenediamine (0.11mol) is added after beating ), react for 2 hours at pH 2.0~3.0, temperature 0~5°C, detect the main peak of the liquid phase ≥ 94%, that is, the end of the reaction is reached, and a shrinkage solution is obtained;

[0038] (2) Diazotization: After the shrinkage reaction is completed, add appropriate amount of ice, 31.1g of 31% hydrochloric acid (0.27mol), 7.6g of sodium nitrite (0.11mol), keep the potassium iodide test paper showing blue and no yellow smoke. React at pH 1.0-1.2 and temperature 0-5°C for 2 hours, use sulfamic acid to eliminate excess sodium nitrite until starch potassium iodide test paper does not develop color, and obtain diazonium solution;

[0039] (3) Coupling: Add 27.2g N-ethyl-3-methylsulfonate-4-methyl-6-hydroxyl-2-pyridone (0.11mol) to the diazo solu...

Embodiment 2～15

[0043] According to the preparation method in Example 1, different compounds of formula (II), formula (III) and formula (IV) are used to prepare, respectively, the structures shown in the following table 1 can be obtained:

[0044] Table 1

[0045]

[0046]

[0047]

[0048]

[0049]

[0050] Example of printing:

[0051] With the help of rapid stirring, 4 grams of the reactive dye compound dry product obtained according to Examples 1 to 15 were added to 100 grams (containing 50 grams of 4% sodium alginate thickener, 36.5 grams of water, 10 grams of urea, 1 gram of sodium alginate, etc. - sodium nitrobenzene sulfonate and 2.5 grams of sodium bicarbonate) in the original slurry, the printing paste prepared in this way is printed and dried on white cotton fabrics, and then steamed with 102 to 105 DEG C of saturated steam for 3 to 10 minutes, rinse and dry at the end.

[0052] According to GB / T3921-2008 and GB / T3920-2008, the soaping fastness and rubbing fastness...

Embodiment 1、 Embodiment 13

[0062] Embodiment 1, embodiment 13, alkali resistance stability > 120min;

[0063] Comparative example 1-3 Alkali resistance stability <120min.

[0064] (3) Lifting power: dyeing depth - K / S value

[0065] Example

[0066] In summary, the dyes of the present invention are obviously better than those of the comparative examples. For the industry, they have significantly improved color fastness (especially color fastness to rubbing), alkali resistance and lifting power.

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PUM

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Abstract

The invention discloses a reactive yellow dye compound as well as a preparation method and an application thereof. The reactive yellow dye compound has the structure shown in a formula (I), wherein R<1> is hydrogen, C1-C4 alkyl and C1-C4 alkoxy or benzyl; R<2> and R<3> are independent respectively and are hydrogen, C1-C4 alkyl, phenyl, halogen substituted phenyl or C1-C4 alkyl substituted with hydroxyl, -SO3M<3> and amino; M<1>, M<2> and M<3> are independent respectively and are hydrogen or alkali metal; X is halogen. The invention provides the application of the reactive yellow dye compound in printing and dyeing of nitrogen-containing and / or hydroxyl-containing materials. The dye has good bonding stability with the nitrogen-containing and / or hydroxyl-containing materials, good alkali resistance, high lifting power and excellent color fastness; after printing and dyeing, the color light is bright and the color is full.

Description

(1) Technical field [0001] The invention relates to a reactive yellow dye compound and its preparation method and application, especially the application in printing and dyeing of nitrogen-containing and / or hydroxyl-containing materials. (2) Background technology [0002] At present, reactive dye printing mainly adopts the whole-material printing process, that is, dyes and all auxiliaries, including alkali agents, are added to the same color paste, and reactive dyes are hydrolyzed to a certain extent under alkaline conditions. Reactive dyes containing vinylsulfone active groups have high reactivity, and the covalent bonds formed are not alkali-resistant and easy to hydrolyze; reactive dyes containing monochloro-s-triazine and vinylsulfone heterobiactive groups have good alkali resistance but have the problem of wind printing ; Existing reactive yellow dyes containing a chloro-s-triazine active group on the market still have problems such as not bright enough shade, alkali re...

Claims

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Application Information

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IPC IPC(8): C09B62/085D06P1/382D06P3/66
CPCC09B62/085D06P1/382D06P3/663
Inventor 欧其汪仁良高怀庆王小红
Owner ZHEJIANG KEYONG CHEM CO LTD
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