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Nano disperse black combined dye and preparation method thereof

A nano-dispersion and dye technology, applied in the direction of organic dyes, can solve the problems of not being able to meet the market demand, and achieve the effect of pure shade and good dyeing uniformity

Active Publication Date: 2012-09-19
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From the perspective of dyeing depth, according to the current conventional dyeing process, it is still difficult to dye a color with a deeper black depth, which cannot meet the market demand.

Method used

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  • Nano disperse black combined dye and preparation method thereof
  • Nano disperse black combined dye and preparation method thereof
  • Nano disperse black combined dye and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Add 37.5g of component A with structural formula (A-I), 10.5g of component B with structural formula (B-I), 2g of component C with structural formula (C-I), 90g of sodium lignosulfonate, and add water After mixing 260g, it was stirred to make a premixed solution, and then according to the preparation examples, a nano-dispersed black composite dye with excellent fastness and a particle size of 15nm-100nm was obtained.

Embodiment 2-16

[0053] According to the content ratio data of each component shown in Table 1, 50g of component A, component B, component C and 90g of additives were mixed with 260g of water and then stirred properly to make a premixed liquid, and then according to the preparation examples, the preparation A commercialized nano-disperse black combined dye with excellent fastness and a particle size of 15nm-100nm was obtained.

[0054] Table 1, each component composition of embodiment 2-16 combination dyestuff.

[0055]

[0056] .

Embodiment 17

[0058] 34g of component A with structural formula (A-I), 13g of component B with structural formula of (B-I), 3g of component C with structural formula of (C-I), 90g of sodium lignosulfonate and dispersant NNO The mixture was mixed with 260g of water and then stirred to make a premixed liquid. Then, according to the preparation examples, a nano-dispersed black combined dye with excellent fastness and a particle size of 15nm-100nm was obtained.

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Abstract

The invention discloses a nano disperse black combined dye and a preparation method thereof, and relates to the field of processing in dye and intermediate industries. The combined dye comprises a dye and an aid, the mass ratio of the dye to the aid is 1: (1-4.5), and the dye is one or more of compounds shown as a formula I; the aid is formed by mixing anionic surfactant and nonionic surfactant in a mass ratio of (100-85)%: (0-15)%; in the formula I, R1 is H, Cl, Br or CN; R2 is H, Cl or NO2; R3 is H or OCH3; R4 is H or NHCOCH3; and R5 and R6 are mutually independent C2H5, C2H4OCOCH3, C2H4OCH3 or C2H4CN. Under the same dyeing condition, compared with the conventional black disperse dye for dyeing a polyester fabric, the nano disperse black combined dye has the advantages that the L value of the fabric is reduced by 21.3 percent, and the K / S value is improved by 18.6 percent.

Description

Technical field: [0001] The invention relates to the field of industrial processing of dyes and intermediates, in particular to a nano-dispersed black combined dye and a preparation method thereof. Background technique: [0002] The macromolecular chains of polyester fiber (polyethylene terephthalate) are neatly arranged, and the crystallinity is relatively large, and the macromolecular chain structure does not contain hygroscopic groups such as hydroxyl, amino, and sodium sulfonate. It is only 0.4%. Therefore, polyester fabrics cannot be dyed with water-soluble dyes, but are colored by high-temperature and high-pressure dyeing, hot-melt dyeing or carrier dyeing with small-molecule non-polar structure disperse dyes. [0003] The disperse black dyes currently used for dyeing polyester fabrics black are mainly blended from several different disperse dyes according to the principle of dye color matching. The diameter is not conducive to the adsorption and diffusion of dyes in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/38C09B67/22
Inventor 刘越
Owner SHAOXING UNIVERSITY
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