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Active turquoise blue dye used in digital printing, and preparation method thereof

A technology of reactive turquoise blue and dyes, applied in dyeing methods, organic dyes, applications, etc., can solve problems such as special structures, achieve low separation costs, high separation efficiency, and easy storage

Inactive Publication Date: 2012-02-15
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reactive turquoise blue dye used in the experiment is a phthalocyanine reactive dye with a special structure
The present inventor has discussed turquoise blue dye and preparation method thereof for digital inkjet printing, which is convenient for industrialized production and practical application, and there is no relevant report at present

Method used

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  • Active turquoise blue dye used in digital printing, and preparation method thereof
  • Active turquoise blue dye used in digital printing, and preparation method thereof
  • Active turquoise blue dye used in digital printing, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 Low concentration separation experiment

[0039] Using reactive turquoise blue K-GL crude dye as raw material, first prepare 40g / L reactive turquoise blue K-GL dye aqueous solution, and remove particulate impurities through 0.5um ceramic microfiltration membrane. Microfiltration membrane area is 0.12m 2， , under the condition of 0.2 MPa, the average permeation flux of the microfiltration membrane is 138kg / (m 2. h). The pretreated dye was analyzed, the conductivity was 12.85ms / cm, and the chloride ion potential was 51.3mv.

[0040] Take the pretreated reactive turquoise blue K-GL dye aqueous solution, and use a charged mosaic membrane (for the preparation of the charged mosaic membrane, refer to the report of CN2009100644084) to perform constant volume membrane filtration and desalination. The membrane area in the experiment is 8.0 m 2 , the operating condition is that the pressure range is 1.0MPa, and the operating temperature is controlled below 40...

Embodiment 2

[0045] Example 2 High-concentration separation experiment

[0046] With reactive turquoise blue K-GL crude dye as raw material, first prepare 80g / L reactive turquoise blue K-GL dye aqueous solution. The characteristic of embodiment 2 is to adopt the dyestuff of high concentration to carry out experiment, in order to judge the influence of raw material concentration. Its separation method and steps are the same as in Example 1.

[0047] Microfiltration experiment: The experimental results show that the permeation flux of the microfiltration membrane decreases at high concentrations, so the experiment adopts the method of increasing the operating pressure to maintain the permeation flux of the microfiltration. When the microfiltration operating pressure is 0.25 MPa, the average permeation flux of the microfiltration membrane is 135.6kg / (m 2. h), close to Example 1.

[0048] Constant volume purification experiment: the operating condition of the experiment is a pressure of...

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Abstract

The invention discloses an active turquoise blue dye used in digital ink-jet printing, and a preparation method thereof. The invention belongs to the technical field of fine chemicals. According to the invention, a commercial K-GL active turquoise blue dye is adopted as a raw material, and a crude dye solution is prepared; particle impurities are removed from the crude dye by using microwaves; inorganic salts are removed through charged mosaic membrane constant-volume purification, such that the purity of the dye is improved; and water is removed through a charged mosaic membrane condensation method, such that the concentration of the dye is increased. The liquid active turquoise blue dye product provided by the invention has purity higher than 99.5%, concentration higher than 150g / L, and good stability. The dye can be used for preparing digital ink-jet printing inks. Also, through spray-drying, the liquid dye can be prepared into a high-purity active turquoise blue solid dye. Under a temperate of 20 DEG C, the dissolubility of the solid dye is higher than 260g / L.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and relates to a dye for digital inkjet printing and a preparation method thereof, in particular to a reactive turquoise blue dye for digital inkjet printing and a preparation method thereof. Background technique [0002] Reactive dyes have complete chromatograms and bright colors, and are important pigment materials for preparing digital inkjet printing inks. Reactive blue is one of the four primary colors of digital inkjet printing. However, commercially available reactive turquoise dyes generally contain more impurities such as inorganic salts and organic intermediates, and cannot be directly used to prepare inkjet printing inks, otherwise it is easy to clog the ink head, so reactive turquoise must be separated Purify. Membrane separation is a high-efficiency separation technology developed in recent years. There are also many studies on the use of nanofiltration technology to remove ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/26C09B67/24C09B67/54C09D11/02D06P1/382D06P3/66C09D11/328
Inventor 张浩勤单盼娣张翔张亚涛张敬一黄满满刘金盾
Owner ZHENGZHOU UNIV
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