CN104098927B - A kind of electrical controlled organic pigment dispersions preparation method - Google Patents
A kind of electrical controlled organic pigment dispersions preparation method Download PDFInfo
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- CN104098927B CN104098927B CN201410368352.2A CN201410368352A CN104098927B CN 104098927 B CN104098927 B CN 104098927B CN 201410368352 A CN201410368352 A CN 201410368352A CN 104098927 B CN104098927 B CN 104098927B
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Abstract
The present invention relates to a kind of electrical controlled organic pigment dispersions preparation method, belong to technical field of textile printing. It is characterized in that adopting following technique: in water, add a certain amount of cellulase, make zymoprotein quality concentration at 0.1-1g/L, regulating the pH of mixed solution is 7, adding quality is zymoprotein 10-20 organic pigment doubly, under Ultrasonic Pulverization condition, process 30-40min, finally with acetic acid or NaOH, dispersion liquid pH is adjusted between 3-10 as required. Can prepare stable organic pigment dispersions by the inventive method, it electrically can be adjusted and be controlled by the mode that regulates dispersion liquid pH value.
Description
Technical field
The present invention relates to a kind of preparation method of electrical controlled organic pigment dispersions, particularly utilize cellulase to prepare the method for electrical controlled organic pigment dispersions, belong to technical field of textile printing.
Background technology
Except dyestuff, organic pigment dispersions also can be used for the dyeing of all kinds of textiles, and have that technological process is short, energy-conservation, the advantage such as discharge of wastewater is few, to be that textile printing and dyeing industry is carried out energy-conservation, one of consumption reduction, the key technology that reduces discharging. In organic pigment precursor structure, lack water soluble group and there is stronger hydrophobicity, be difficult to be dispersed in aqueous medium. Therefore, must carry out surface modification to it according to organic pigment architectural feature, then make it to form by powerful smashing effect the dyeing that stable primary granule dispersion could be used for textile. Organic pigment surface modification mainly relies on anion or the cation dispersing agent with suitable construction to realize, dispersant makes it with a certain amount of negative or positive electric charge after being combined with surface of pigments, rely on the repulsive interaction of like charges to keep the stability of pigment dispersion system. Now, being electrically just fixed up of pigment dispersion, can not adjust flexibly according to actual needs.
Cellulase is the general name of the cellulosic enzyme of catalyzing hydrolysis, is mainly made up of endoglucanase, exoglucanase and beta-glucosidase, and three is collaborative plays hydrolyzation catalysis effect to cellulose. The chemical nature of cellulase is protein, is generally made up of 20 kinds of L-type amino acid, presents certain colloid property in the aqueous solution. According to the difference of side group structure, amino acid can be divided into 4 classes: neutral amino acid, acidic amino acid, basic amino acid and aromatic heterocycle amino acid. Because alkaline and acidic amino acid exist simultaneously, protein presents typical amphotericity, and it electrically can regulate and control according to the variation of outside acid or alkali environment.
Summary of the invention
The object of this invention is to provide a kind of method of preparing electrical controlled organic pigment dispersions, its charged character can regulate according to the variation of outside acid or alkali environment, makes the range of application of organic pigment dispersions wider, and application mode is more flexible.
The present invention includes following technique: in water, add a certain amount of cellulase, make zymoprotein quality concentration at 0.1-1g/L, regulating the pH of mixed solution is 7, adding quality is zymoprotein 10-20 organic pigment doubly, under Ultrasonic Pulverization condition, process 30-40min, finally with acetic acid or NaOH, dispersion liquid pH is adjusted between 3-10 as required.
First, add a certain amount of cellulase and make it abundant dissolving in water, zymoprotein quality concentration is at 0.1-1g/L, and cellulase used is commercially available polishing cellulase. Regulate mixed solution pH to neutral, adding quality is zymoprotein 10-20 organic pigment doubly, utilizes the impact of ultrasonic cavitation effect generation by organic pigment fragmentation, and time dimension is held in 30-40min. Between cellulase protein and organic pigment surface, there is stronger hydrophobic sucking action, impel zymoprotein to be adsorbed to surface of pigments. Under neutrallty condition, cellulase protein molecule entirety is electronegative, and therefore surface of pigments also presents elecrtonegativity, relies on electrostatic repulsion to keep the dispersion stabilization of pigment. Subsequently, can be by regulating the mode of dispersion liquid pH value to adjust and to control surface of pigments electrical. When pH is during higher than cellulase isoelectric point, surface of pigments is electronegative, and negative electricity place value raises and increases with pH; When pH value is during lower than isoelectric point, on schedule, and positive electricity place value reduces and increases with pH surface of pigments band. The adjustable range of pH, between 3-10, exceeds after this scope, and the stability of pigment dispersion, by variation, affects its follow-up effect.
Detailed description of the invention
Further illustrate the present invention below by embodiment.
Embodiment 1
In water, adding cellulase to make zymoprotein concentration is 0.1g/L, regulating the pH of mixed solution is 7, adding quality is the organic blue pigment of 10 times of zymoproteins, under Ultrasonic Pulverization condition, process 30min, finally with NaOH and acetic acid, dispersion liquid pH is adjusted to respectively to 10,8,6,3.5 and 3, measures surface of pigments potential value and be respectively-50.3 ,-42.3 ,-37.2,6.7 and 20.7mv.
Embodiment 2
In water, adding cellulase to make zymoprotein concentration is 0.5g/L, and regulating the pH of mixed solution is 7, and adding quality is the organic yellow pigment of 20 times of zymoproteins, under Ultrasonic Pulverization condition, processes 35min; Finally with NaOH and acetic acid, dispersion liquid pH is adjusted to respectively to 10,8,6,3.5 and 3, measures surface of pigments potential value and be respectively-49.3 ,-43.3 ,-35.2,9.7 and 17.4mv.
Embodiment 3
In water, adding cellulase to make zymoprotein concentration is 1g/L, and regulating the pH of mixed solution is 7, and adding quality is organic red of 20 times of zymoproteins, under Ultrasonic Pulverization condition, processes 40min; Finally with NaOH and acetic acid, dispersion liquid pH is adjusted to respectively to 10,8,6,3.5 and 3, measures surface of pigments potential value and be respectively-51.3 ,-41.3 ,-36.2,12.7 and 19.6mv.
Can be found out by embodiment, can prepare electrical controlled organic pigment dispersions by the inventive method, it electrically can be adjusted and be controlled by the mode that regulates dispersion liquid pH value.
Claims (1)
1. an electrical controlled organic pigment dispersions preparation method, it is characterized in that adopting following technique: in water, add a certain amount of cellulase, described cellulase is commercially available polishing cellulase, make zymoprotein quality concentration at 0.1-1g/L, regulating the pH of mixed solution is 7, adding quality is zymoprotein 10-20 organic pigment doubly, described organic pigment is organic indigo plant, organic yellow and organic red, under Ultrasonic Pulverization condition, process 30-40min, finally with acetic acid or NaOH, dispersion liquid pH is adjusted between 3-10 as required.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410368352.2A CN104098927B (en) | 2014-07-30 | 2014-07-30 | A kind of electrical controlled organic pigment dispersions preparation method |
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| CN201410368352.2A CN104098927B (en) | 2014-07-30 | 2014-07-30 | A kind of electrical controlled organic pigment dispersions preparation method |
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| CN104098927A CN104098927A (en) | 2014-10-15 |
| CN104098927B true CN104098927B (en) | 2016-05-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107353672B (en) * | 2017-07-08 | 2019-03-26 | 青岛大学 | A method of non-ionic dispersing agent is improved to organic pigment dispersion performance |
| CN108864754B (en) * | 2018-06-19 | 2019-08-27 | 青岛大学 | A method of cellulase is improved to organic pigment dispersion efficiency |
| CN110344263B (en) * | 2019-08-06 | 2021-12-03 | 青岛大学 | Method for improving stability of dyeing liquid of polyester knitted fabric carrier |
| CN110306368B (en) * | 2019-08-06 | 2021-11-02 | 青岛大学 | Disperse dye carrier dyeing method for polyester knitted fabric |
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| EP0628105B1 (en) * | 1992-02-28 | 1997-07-02 | Genencor International, Inc. | Methods of enhancing printing quality of pigment compositions onto cotton fabrics |
| JPH10202081A (en) * | 1997-01-21 | 1998-08-04 | Fuji Oil Co Ltd | Dispersant for inorganic and organic materials, its production and dispersing method |
| CN1210876A (en) * | 1997-07-28 | 1999-03-17 | 赫尔克里士公司 | Biostable water-borner paints and processes for their preparation |
| CN1965027A (en) * | 2004-06-09 | 2007-05-16 | 可乐丽股份有限公司 | Aqueous dispersion, composition and coating agent for paper |
| CN101090950A (en) * | 2004-10-28 | 2007-12-19 | 惠普开发有限公司 | Restoration of black to color bleed performance of amphoteric pigment dispersion based inks of low pigment loads |
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2014
- 2014-07-30 CN CN201410368352.2A patent/CN104098927B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0628105B1 (en) * | 1992-02-28 | 1997-07-02 | Genencor International, Inc. | Methods of enhancing printing quality of pigment compositions onto cotton fabrics |
| CN1126487A (en) * | 1993-07-05 | 1996-07-10 | 汉克尔股份两合公司 | Coated enzyme composition for washing and cleaning products |
| JPH10202081A (en) * | 1997-01-21 | 1998-08-04 | Fuji Oil Co Ltd | Dispersant for inorganic and organic materials, its production and dispersing method |
| CN1210876A (en) * | 1997-07-28 | 1999-03-17 | 赫尔克里士公司 | Biostable water-borner paints and processes for their preparation |
| CN1965027A (en) * | 2004-06-09 | 2007-05-16 | 可乐丽股份有限公司 | Aqueous dispersion, composition and coating agent for paper |
| CN101090950A (en) * | 2004-10-28 | 2007-12-19 | 惠普开发有限公司 | Restoration of black to color bleed performance of amphoteric pigment dispersion based inks of low pigment loads |
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| CN104098927A (en) | 2014-10-15 |
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Effective date of registration: 20180109 Address after: 215228, Jiangsu City, Suzhou province Wujiang Town, Shengze Village Patentee after: Wujiang Xinmin Chemical Fiber Co., Ltd. Address before: 266071 Shandong city of Qingdao province Ningxia City Road No. 308 Patentee before: Qingdao University |
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Effective date of registration: 20211022 Address after: 215228 dam town, Shengze Town, Wujiang District, Suzhou, Jiangsu Patentee after: Demu new material technology (Suzhou) Co.,Ltd. Address before: 215228, Jiangsu City, Suzhou province Wujiang Town, Shengze Village Patentee before: WUJIANG XINMIN CHEMICAL FIBRE Co.,Ltd. |