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A kind of nano-silver and gelatin modified antibacterial ink and preparation method thereof

A nano-silver and gelatin technology, applied in inks, household appliances, applications, etc., can solve the problems of low biological safety and strong odor, and achieve the effects of simple preparation process, fluent and smooth writing, and black and bright ink marks.

Active Publication Date: 2020-09-04
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of low biological safety and strong smell of existing ink products such as ink, the present invention provides a nano-silver and gelatin modified antibacterial ink and a preparation method thereof. The prepared antibacterial ink has strong antibacterial property, non-toxic and non-toxic Stinky, suitable for large-scale promotion and application

Method used

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  • A kind of nano-silver and gelatin modified antibacterial ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1) dissolving gelatin in water to prepare a gelatin aqueous solution with a concentration of 2wt% for later use;

[0044] 2) Dissolve silver nitrate with a proportion of 0.3 parts by weight in the gelatin solution described in step 1) with a proportion of 180 parts by weight, and stir evenly;

[0045] 3) Take ascorbic acid with a proportion of 0.15 parts by weight and dissolve it in the gelatin solution described in step 1) with a proportion of 180 parts by weight, stir evenly, and adjust the pH to 9.5;

[0046] 4) Slowly add the well-stirred ascorbic acid solution dropwise into the well-stirred silver nitrate solution, stir magnetically at 60°C, and react for 1.5h to prepare a nano-silver solution;

[0047] 5) Take ink toner with a ratio of 10 parts by weight, and grind it into fine toner for later use;

[0048] 6) Take the above-mentioned fine carbon powder and slowly add it to the nano-silver solution after the reaction, and keep stirring to make it evenly dispersed...

Embodiment 2

[0052] 1) dissolving gelatin in water to prepare a gelatin aqueous solution with a concentration of 2wt% for later use;

[0053] 2) Dissolve silver nitrate with a proportion of 1.35 parts by weight in the gelatin solution described in step 1) with a proportion of 270 parts by weight, and stir evenly;

[0054]3) Take ascorbic acid with a proportion of 0.7 parts by weight and dissolve it in the gelatin solution described in step 1) with a proportion of 270 parts by weight, stir evenly, and adjust the pH=10;

[0055] 4) Slowly add the well-stirred ascorbic acid solution dropwise into the well-stirred silver nitrate solution, stir magnetically at 70°C, and react for 1 hour to prepare a nano-silver solution;

[0056] 5) Take ink toner with a ratio of 10 parts by weight, and grind it into fine toner for later use;

[0057] 6) Take the above-mentioned fine carbon powder and slowly add it to the nano-silver solution after the reaction, and keep stirring to make it evenly dispersed; ...

Embodiment 3

[0061] 1) dissolving gelatin in water to prepare a gelatin aqueous solution with a concentration of 2wt% for later use;

[0062] 2) Dissolve silver nitrate with a proportion of 0.005 parts by weight in the gelatin solution described in step 1) with a proportion of 60 parts by weight, and stir evenly;

[0063] 3) Take ascorbic acid with a proportion of 0.0025 parts by weight and dissolve it in the gelatin solution described in step 1) with a proportion of 60 parts by weight, stir evenly, and adjust the pH to 9;

[0064] 4) Slowly add the well-stirred ascorbic acid solution dropwise into the well-stirred silver nitrate solution, stir magnetically at 50°C, and react for 2 hours to prepare a nano-silver solution;

[0065] 5) Take ink toner with a ratio of 10 parts by weight, and grind it into fine toner for later use;

[0066] 6) Take the above-mentioned fine carbon powder and slowly add it to the nano-silver solution after the reaction, and keep stirring to make it evenly disper...

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Abstract

The invention relates to nano silver and gelatin modified antibacterial ink and a preparation method thereof. The nano silver and gelatin modified antibacterial ink is prepared from the following ingredients in parts by weight: 10 parts of ink carbon powder, 60 to 540 parts of gelatin solution, 0.0025 to 1.8 parts of silver salt, 0.0015 to 0.9 parts of reducing agent, 0.5 to 10 parts of emulsifier, 0.5 to 15 parts of wetting agent and 0 to 1 parts of spice. The prepared antibacterial ink is high in antibacterial property, non-toxic, odourless and suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to an antibacterial ink modified by nanometer silver and gelatin and a preparation method thereof, belonging to the field of calligraphy and painting utensils. Background technique [0002] In Chinese traditional art, calligraphy occupies a very important position and has very Chinese national characteristics. Ink, one of the four treasures of the study, which is closely related to calligraphy, has a very long history of use, dating back thousands of years. As an indispensable art expression product in the field of Chinese art, the performance of ink should be continuously improved, perfected, and then passed on and carried forward. [0003] There are also a lot of inks on the market today, and there are various types. They are basically made of carbon black and animal rubber. Since the rubber is perishable, in order to prevent the deterioration of ink products, toxic substances such as phenol and xylenol are added as preservativ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/16C09D11/17
CPCC09D11/16C09D11/17
Inventor 黄雅钦李静慧
Owner BEIJING UNIV OF CHEM TECH
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