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Blue disperse dye

A disperse dye, blue technology, applied in the direction of organic dyes, azo dyes, monoazo dyes, etc., can solve the problems of low one-time success rate and poor dyeing stability of printing and dyeing, and achieve the promotion of one-time success rate, dyeing stability and cost. low effect

Active Publication Date: 2021-08-10
HANGZHOU FLARIANT SPECIALTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are some disperse dyes specifically for microfibers on the market, but these dyes are usually designed based on the principle that the ester group is easily hydrolyzed, and the decomposed product is a colorless substance. The pH is very sensitive, and in the actual use process Among them, the dyeing stability is relatively poor, resulting in a low success rate of printing and dyeing

Method used

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  • Blue disperse dye
  • Blue disperse dye
  • Blue disperse dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preferred blue disperse dye, the structural formula is as follows:

[0035]

[0036] Its preparation method is as follows:

[0037] 1. Preparation of N-benzyl-N-butylphthalimide (base) m-acetamidoaniline

[0038] (1) Into the 500ml there-necked bottle in turn, drop m-aminobenzyl, bromobutylimine, acid-binding agent, catalyst and dehydrating agent, slowly heat up to between 116-120 degrees, reflux water separation reaction, water is in the lower layer, The water was separated in time, and after 24 hours, the end point was detected by HPLC.

[0039] (2) After the end point, evaporate the dehydrating agent. Continue to add water to the feed solution to separate the layers, and add glacial acetic acid to dissolve the oil layer to obtain the coupling components.

[0040] 2. Synthesis of BASE

[0041] (1) Preparation of diazonium salt

[0042] Add 59g of sulfuric acid and nitrosylsulfuric acid to the flask, and slowly add 6-bromo-2,4-nitroaniline at a controlled tem...

Embodiment 2

[0051] 1. Choose one of the blue disperse dyes, the structural formula is as follows:

[0052]

[0053] TOP fabrics were dyed with different concentrations of the above dyes, and the dyeing methods are shown in Table 1 below.

[0054] Table 1 staining method

[0055]

[0056] Among them, the fabric is made of TOP100% polyester material, warp 50d / 72f, weft 50d / 72f, 165T*135T, thickness 100d / 144F+(OP 40d / 1f), OP=10%.

[0057] R C conditions: alkaline once.

[0058] Styling conditions: temperature 160°C, time 60 seconds, one time.

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Abstract

The invention relates to the field of dye chemical industry, and discloses a blue disperse dye. The structure of the blue disperse dye is as shown in formula (I) defined in the description, wherein R is -NO2 or -CN; m ranges from 0 to 1; and n ranges from 1 to 4. Compared with the existing sapphire blue disperse dye, the blue disperse dye provided by the invention also has the characteristics of high washing fastness, wide applicable pH range of the dye and the like, is higher in color yield, and can be spliced with red and yellow disperse dyes to form a black or dark blue disperse dye, so that the blue disperse dye is wider in application range. Theblue disperse dye is non-toxic, free of carcinogenicity, allergy-free, safe and environment-friendly, low in three-waste emission, simple in synthesis process and low in cost.

Description

technical field [0001] The present invention relates to the field of dye chemical industry, is especially suitable for a kind of blue disperse dye, relates to the method for preparing this disperse dye at the same time, and relates to the dyeing application of these dyes on fiber materials, especially the application on hydrophobic fiber materials, such as containing A material made of polyester fibers, or a blend or blend of such polyester fibers with synthetic fibers such as nylon. Background technique [0002] As fabrics become more and more ultra-fine and interwoven with various fibers, ultra-fine fibers and ultra-fine denier fibers have appeared. Due to their extremely small linear density and high specific surface area, their fabrics have high coverage. Soft to the touch and comfortable to wear, it has become a hot textile raw material for domestic and foreign textile enterprises to develop high-grade textiles. Although the current conventional disperse dyes can barel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B29/08D06P1/18D06P1/19D06P3/54
CPCC09B29/08D06P1/18D06P1/19D06P3/54
Inventor 李百春
Owner HANGZHOU FLARIANT SPECIALTY