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Graphene modified nano fibroin-based microbial pigment dye particle and preparation method thereof

A technology of microbial pigment and graphene modification, applied in the field of textile materials, can solve the problem of less nano-pigment, and achieve the effect of improving affinity, small molecular weight, good light resistance and heat resistance

Inactive Publication Date: 2019-04-26
FOSHAN MINGZHOU TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known from above-mentioned prior art, the preparation method of nano-pigment is more, but the nano-pigment that can be used for textile dyeing aspect is less at present

Method used

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  • Graphene modified nano fibroin-based microbial pigment dye particle and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add Monascus fermented strains and silk protein with a mass ratio of 1:0.6 into a liquid fermentation medium containing 0.01% Tween 80, and culture on a constant temperature shaker at a frequency of 500 r / min at 28°C 3d, centrifuge to obtain a microbial pigment nanomicelle solution.

[0026] (2) Add the microbial pigment nanomicelle solution with a solid content of 1wt% at a volume ratio of 1:2 to the silk protein solution with a solid content of 3wt%, stir evenly, and freeze-thaw twice, wherein the freeze-thaw treatment The freezing temperature is -20°C, and the melting temperature is 25°C to obtain a solution of silk protein particles loaded with microbial pigments.

[0027] (3) Add graphene oxide solution dropwise to the silk protein particle solution loaded with microbial pigment, wherein graphene oxide accounts for 0.1wt% of the total system mass, after mixing evenly, according to the quality of graphene oxide and DL-cysteine The ratio is 1:0.3, add DL-cystein...

Embodiment 2

[0029] (1) Add B. trispora fermentation strain and silk protein with a mass ratio of 1:1.1 to a liquid fermentation medium containing 0.5% polyethylene glycol, and keep the temperature constant at a frequency of 800 r / min at 30°C Cultivate on a shaking table for 6 days, and centrifuge to obtain a microbial pigment nano-micelle solution.

[0030] (2) Add the microbial pigment nanomicelle solution with a solid content of 3wt% at a volume ratio of 1:4 to the silk protein solution with a solid content of 5wt%, stir evenly, and freeze-thaw 5 times, wherein the freeze-thaw treatment The freezing temperature is -20°C, and the melting temperature is 30°C to obtain a solution of silk protein particles loaded with microbial pigments.

[0031] (3) Add graphene oxide solution dropwise to the silk protein particle solution loaded with microbial pigment, wherein graphene oxide accounts for 0.3wt% of the total system mass, after mixing evenly, according to the quality of graphene oxide and D...

Embodiment 3

[0033] (1) Add the Aspergillus niger fermentation strain and silk protein with a mass ratio of 1:0.8 into the liquid fermentation medium containing 0.05% Tween 80, and culture on a constant temperature shaker at a frequency of 600r / min at 29°C 4d, centrifuging to obtain a microbial pigment nano-micelle solution.

[0034] (2) Add the microbial pigment nano-micelle solution with a solid content of 2wt% at a volume ratio of 1:2.5 to the silk protein solution with a solid content of 3.5wt%, stir evenly, and freeze-thaw 4 times, wherein The freezing temperature of the treatment is -20° C., and the melting temperature is 28° C. to obtain a solution of silk protein particles loaded with microbial pigments.

[0035] (3) Add graphene oxide solution dropwise in the silk protein particle solution loaded with microbial pigment, wherein graphene oxide accounts for 0.2wt% of the total system mass, after mixing evenly, according to the quality of graphene oxide and DL-cysteine The ratio is ...

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Abstract

The invention provides a graphene modified nano fibroin-based microbial pigment dye particle and a preparation method thereof. The preparation method comprises the following steps: adding pigment-containing microbial fermentation culture and fibroin into a liquid fermentation medium containing a nonionic surfactant, performing shaking table culture at a constant temperature, and centrifuging to obtain a microbial pigment nano-micelle solution; adding the microbial pigment nano-micelle solution into the fibroin solution, and performing repeated freeze thawing treatment so as to obtain a microbial pigment supported fibroin particle solution; dropping a graphene oxide solution into the microbial pigment supported fibroin particle solution, uniformly mixing, adding DL-semi-cystine, heating, stirring and reducing, and performing freeze drying, thereby obtaining the graphene modified nano fibroin-based microbial pigment dye particle. The microbial pigments are fixed in pores of the fibroin,and the graphene is self-assembled on the fibroin surface by virtue of the DL-semi-cystine, so that the prepared dye is excellent in dispersion property and excellent in dye-uptake and color fastness.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and in particular relates to graphene-modified nano silk protein-based microbial pigment dye particles and a preparation method thereof. Background technique [0002] The main raw material of dyes is pigments. Traditional printing dyes need to be mechanically crushed and ground to form ultra-fine pigments to improve the dyeing rate and uniformity of dyed fabrics. However, traditional printing dyes still have uneven particle sizes and irregular shapes. Poor dispersibility and other shortcomings, so it is necessary to add wetting agent, dispersant and other additives to the dye to improve the dispersibility of the pigment, but the existence of these additives will inevitably increase the binding force between the pigment, the adhesive and the fabric, and greatly To a certain extent, the color brightness and fastness of dyed fabrics are limited. [0003] With the continuous advancement of...

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/46D06P1/673
CPCD06P1/34D06P1/46D06P1/673
Inventor 刘清海
Owner FOSHAN MINGZHOU TEXTILE