Carbon-coated silver microspheres and preparation method thereof, black pigment printing paste and application thereof

A printing color paste and black paint technology, applied in the field of fabric printing and dyeing, can solve the problems of easy aggregation of antibacterial agents, no antibacterial agents, poor quality, etc., achieve strong tinting power and hiding power, improve antibacterial performance, and stable properties

Active Publication Date: 2022-06-21
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But traditional printing color paste usually does not contain antibacterial agent, such as Chinese invention patent application CN105970671 A a kind of dyeing and coating integrated dyeing, printing paste composition and the color paste in its application do not have antibacterial properties, but currently have antibacterial effect The printing color paste of the printing paste usually directly uses organic molecules such as inorganic metals or chitosan as antibacterial agents, but these antibacterial agents have the disadvantages of easy aggregation or poor stability, such as Chinese invention patent application CN109505164 A, a kind of antibacterial textile dye and Chinese Invention patent application CN108071024 A is a textile antibacterial dye that directly uses nano-silver and / or nano-titanium dioxide as antibacterial agents, and the stability of the antibacterial agents used is not good
[0003] And for the problems that the above-mentioned antibacterial agents exist, there are also some related studies. Although the problems of easy aggregation and poor stability of the above antibacterial agents have been solved, the antibacterial effect is not good.
For example, Gong Yanbo, Dai Jinming, etc. Preparation of silver-loaded carbon microsphere antibacterial agent and research on its antibacterial performance [J]. Chemical New Materials, 2016 (4): 97-99, provided a carbon microsphere as Carrier, prepare silver-loaded carbon microspheres (Ag / CMSs) antibacterial agent by the method of reduction adsorption, but the antibacterial diameter of this antibacterial agent to E. coli is only 21mm, and antibacterial effect is not good

Method used

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  • Carbon-coated silver microspheres and preparation method thereof, black pigment printing paste and application thereof
  • Carbon-coated silver microspheres and preparation method thereof, black pigment printing paste and application thereof
  • Carbon-coated silver microspheres and preparation method thereof, black pigment printing paste and application thereof

Examples

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Effect test

Embodiment 1

[0030] A carbon-coated silver microsphere with a core-shell structure, the particle size of the carbon-coated silver microsphere is 50nm, wherein the particle size of the silver particle is 10nm, and the thickness of the carbon shell layer is 20nm.

[0031] The above-mentioned preparation method of carbon-coated silver microspheres with a core-shell structure comprises the following steps:

[0032](1) Preparation of silver particles: Mix and stir 0.01g of trisodium citrate and 1mL of deionized water until completely dissolved to obtain a trisodium citrate solution; add 0.01g of silver nitrate to the trisodium citrate solution and 50mL of deionized water, heated at 100°C for 20min, then added 1mL of an aqueous solution with a trisodium citrate content of 1%, stirred for 20min, stopped heating, continued stirring for 1, and then centrifuged at 800r / min; washed the centrifuged product with water Afterwards, disperse in 1 mL of absolute ethanol to obtain a silver particle mixture;...

Embodiment 2

[0040] A carbon-coated silver microsphere with a core-shell structure, the particle diameter of the carbon-coated silver microsphere is 90nm, wherein the particle diameter of the silver particle is 25nm, and the thickness of the carbon shell layer is 50nm.

[0041] The above-mentioned preparation method of carbon-coated silver microspheres with a core-shell structure comprises the following steps:

[0042] (1) Preparation of silver particles: Mix and stir 0.5 g of trisodium citrate and 60 mL of deionized water until completely dissolved to obtain a trisodium citrate solution; add 1.2 g of silver nitrate to the trisodium citrate solution and 450mL of deionized water, heated at 100°C for 25min, then added 15mL of an aqueous solution with a trisodium citrate content of 1%, stirred for 25min, stopped heating, continued to stir for 1.2 minutes, and then centrifuged at 900r / min; washed the centrifuged product with water Afterwards, disperse in 13mL of absolute ethanol to obtain a si...

Embodiment 3

[0050] A carbon-coated silver microsphere with a core-shell structure, the particle size of the carbon-coated silver microsphere is 200nm, wherein the particle size of the silver particle is 40nm, and the thickness of the carbon shell layer is 90nm.

[0051] The above-mentioned preparation method of carbon-coated silver microspheres with a core-shell structure comprises the following steps:

[0052] (1) Preparation of silver particles: 1g of trisodium citrate and 100mL of deionized water are mixed and stirred until completely dissolved to obtain a trisodium citrate solution; 2g of silver nitrate and 800mL of silver nitrate are added to the trisodium citrate solution Deionized water, heated at 100°C for 30min, then added 20mL of an aqueous solution with a trisodium citrate content of 1%, stirred for 30min, stopped heating, continued to stir for 1.5 minutes, and then centrifuged at 1000r / min; the centrifuged product was washed with water and dispersed In 20mL of absolute ethanol...

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Abstract

The invention belongs to the technical field of fabric printing and dyeing, and specifically discloses a core-shell structure carbon-coated silver microsphere, a preparation method thereof, a black pigment printing paste and an application thereof. The particle size of the core-shell structure carbon-coated silver microspheres of the present invention is 50-200nm, wherein the particle size of the silver particles is 10-40nm, and the thickness of the carbon shell layer is 20-90nm. Preparation of silver microspheres coated with silica, silver@silica@polystyrene microspheres, and carbon-coated silver microspheres with core-shell structure. The prepared silver microspheres have a stable structure and good antibacterial effect. The invention also provides a printing color paste containing silver microspheres and an application thereof. The printing color paste containing silver microspheres of the invention is firmly bonded to fabrics and has high antibacterial efficiency.

Description

【Technical field】 [0001] The invention relates to the technical field of fabric printing and dyeing, in particular to a carbon-coated silver microsphere with a core-shell structure and a preparation method thereof, a black pigment printing paste and an application thereof. 【Background technique】 [0002] Pigment printing is a printing process that uses adhesives to adhere color paste paint to fabrics and endow fabrics with various patterns. With the improvement of the quality of social life, people have put forward new requirements for the quality of printed products, that is, printed products are required to have antibacterial properties, which can reduce bacterial infection to a certain extent. But traditional printing color paste usually does not contain antibacterial agent, such as Chinese invention patent application CN105970671 A a kind of dyeing and coating integrated dyeing, printing paste composition and the color paste in its application do not have antibacterial p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/52D06P1/673D06P1/44B01J13/22
CPCD06P1/5285D06P1/525D06P1/445D06P1/673D06P1/5221D06P1/67383B01J13/22
Inventor 唐春怡左华江胡孝勇
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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