6 results about "Pigment synthesis" patented technology

The invention relates to a paper for decorative coating materials, containing cellulosic fibres and synthetic fibres, the synthetic fibres containing at least one polymer and at least one pigment, and the mass ratio of pigment to polymer in the synthetic fibres being 1: 10 to 1: 1. Furthermore, the invention relates to a decorative paper or a decorative film containing the paper according to the invention, and to a method for producing the paper according to the invention, comprising the following steps: (a) providing a pulp mixture, (b) grinding the pulp mixture to a grinding degree of 10 to 45 DEG SR, (c) selectively adding a filler and a wet strength agent to the ground pulp mixture obtained in (b), (d) diluting the mixture obtained in (c), (e) selectively adding auxiliaries, (f) forming a fibrous non-woven fabric, (g) dewatering and drying the fibrous non-woven fabric to obtain the paper, in which synthetic fibers containing at least one polymer and at least one pigment are added after step (d) and before step (f), and in which the mass ratio of pigment to polymer is from 1: 10 to 1: 1.

The application discloses a kind of acid and alkali resistant pigment red 57:1 for ink and a preparation method thereof, and belongs to the technical field of pigment synthesis, which is composed of 5~10 parts of block polymer and 70~100 parts of pigment red 57:1 by weight; The block polymer is a block polymer with a main chain containing a vinyl structural unit, a side chain with a carboxyl group / amino group and a phenyl group, and a phenyl group at the end; The acid and alkali resistant pigment red 57:1 for ink prepared by the application, while maintaining the original bright color of the pigment and the advantages of high color strength, by introducing a hydrophilic core rich in carboxyl and amino groups, and matching a hydrophobic shell, the stability of the pigment in strong acid and strong alkali environment is improved, and has a broader application prospect.

The invention discloses a red pigment, a preparation method thereof and a red pigment dispersion liquid, the preparation method comprises the following steps: (1) preparing a copper-based catalyst: carrying out partial reduction calcination treatment on Cu2O powder in a reducing atmosphere which contains H2 to obtain the copper-based catalyst rich in oxygen vacancies; (2) mixing bromamine acid or salt thereof, the copper-based catalyst prepared in the step (1) and a solvent; (3) adding acid into the mixture obtained in the step (2), and carrying out condensation reaction; and (4) after the reaction is finished, carrying out post-treatment to obtain the red pigment. Through cooperation of the copper-based catalyst rich in oxygen vacancies and the process, the comprehensive technical effects that the synthesis reaction rate of the red pigment is remarkably increased, the particle size of primary particles is reduced, the primary particles are uniformly distributed, and the contrast ratio and dispersion stability in the optical filter are comprehensively improved are achieved.

The invention discloses a rapid screening method of a pigment high-yield strain, and belongs to the field of pigment synthesis. According to the technical scheme, the method comprises the steps that Raman spectrums of a plurality of pigment high-yield strains serve as a training set, and a deep learning model based on an out of distribution algorithm is constructed; determining the category of a sorted target pigment, after the target pigment is identified by the classification model, setting a sorting threshold value by using the intensity difference value of Raman peaks, carrying out flow type Raman detection on a mutant library to be screened, calculating the Raman spectrum characteristic peak difference value of the Raman spectrum judged as the target pigment in real time, and comparing the Raman spectrum characteristic peak difference value with the sorting threshold value. The cells with the characteristic peak difference value larger than the threshold value are sorted and collected. The method is applied to rapid screening of the high-yield pigment strains, solves the problems of low screening efficiency and poor screening precision of the existing high-yield pigment strain screening technology, and has the characteristics of high throughput and high screening precision.

The invention belongs to the technical field of pigment synthesis, discloses halogenated ornamental blue as well as a preparation method and application thereof, and breaks through a traditional amino modification-based derivation path of ornamental blue. Halogen is introduced into a main molecular structure of ornamental blue, and 5, 5-dihydroxy ornamental blue reacts with a specific halogenating agent to prepare the blue-light-emitting material. During preparation, 5, 5-dihydroxy blue and a halogenating agent react for 1-2 hours at the temperature of 20-30 DEG C in solvents such as dioxane and acetonitrile according to the molar ratio of 1: 1-1: 3, and a product can be obtained through ice water quenching, filtering, washing and drying. The synthesis method is simple and convenient, and post-treatment is simple. The halogenated ornamental blue is excellent in dyeing performance, the K / S value exceeds 10, the dye uptake exceeds 91%, and the color fastness to sun, washing and wet rubbing reaches level 5, which is obviously superior to that of lemon yellow and 5, 5-dihydroxy ornamental blue, so that the halogenated ornamental blue not only can be used for dyeing, but also can be used as an intermediate for synthesis of other derivatives, and the family structure and the application scene of the ornamental blue are enriched.

The utility model provides an adsorption and drying integrated device in a carbon / pearlescent pigment synthesis process, which comprises a soaking box, a drying box and a drying box, the drying box is slidably arranged at the mounting opening of the soaking box in the vertical direction, and a plurality of through holes are formed in the peripheral side walls of the bottom of the drying box; the lifting assembly is installed between the soaking box and the drying box and used for driving the drying box to slide up and down to be away from or close to the soaking box; the stirring assembly comprises a first motor, a stirring shaft and an intermittent mechanism, the first motor is fixedly installed at the bottom of the soaking box, the stirring shaft is rotatably arranged on the bottom wall of the soaking box in a penetrating mode, the first motor is in transmission connection with the stirring shaft through the intermittent mechanism, and the part, located in the soaking box, of the stirring shaft is provided with a plurality of blades. According to the utility model, pearlescent pigment and pyrolysis oil can be mixed and stirred intermittently, so that the adsorption speed of organic matters is accelerated, and the uniform adsorption effect is improved.