Calcium alginate fiber with pH (Potential of Hydrogen) value indicating function and preparation method thereof
A calcium alginate fiber and indicating technology, which is applied in chemical instruments and methods, alginate artificial filaments, organic dyes, etc., can solve the problem of insufficient binding force between acid-base indicators and fibers, narrow discoloration range of color-changing fabrics, and poor indication Avoid problems such as agent falling off, so as to avoid secondary infection, avoid clogging and reduce settlement
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0029] (1) After washing and crushing the purple sweet potato, add it to an aqueous solution with a mass fraction of ethanol of 50% at a material-to-liquid ratio of 1:10, adjust its pH value to 3 with acetic acid, and then incubate at 50°C for 120 minutes for leaching , after filtering, the natural dye stock solution with the function of changing color at pH value is obtained, and then the stock solution is concentrated, solidified and pulverized to obtain powdered natural dye;
[0030] (2) Weigh the powdered natural dye, prepare a natural dye solution with a mass fraction of 0.03%, and then add sodium alginate 100 times the mass of the natural dye and a molecular weight of 600,000 to the solution, fully stir, and vacuum defoam to obtain spinning solution;
[0031] (3) After the spinning liquid passes through the pressurized metering pump, the fibers are sprayed out from the spinneret with a hole diameter of 0.05mm, and then treated in the coagulation bath of calcium chloride ...
Embodiment 2
[0034](1) After washing and crushing the purple sweet potato, add it to an aqueous solution with a mass fraction of 70% ethanol at a material-to-liquid ratio of 1:30, adjust its pH value to 5 with acetic acid, and then incubate at 70°C for 80 minutes for leaching , after filtering, the natural dye stock solution with the function of changing color at pH value is obtained, and then the stock solution is concentrated, solidified and pulverized to obtain powdered natural dye;
[0035] (2) Weigh the powdered natural dye, prepare a natural dye solution with a mass fraction of 0.05%, then add sodium alginate 80 times the mass of the natural dye and with a molecular weight of 400,000 to the solution, fully stir, and vacuum defoam to obtain spinning solution;
[0036] (3) After the spinning liquid passes through the pressurized metering pump, the fibers are sprayed out from the spinneret with a hole diameter of 0.10 mm, and then treated in the coagulation bath of calcium chloride aque...
Embodiment 3
[0039] (1) After washing and crushing the purple sweet potato, add it to an aqueous solution with a mass fraction of ethanol of 60% at a material-to-liquid ratio of 1:50, adjust its pH value to 4 with acetic acid, and then incubate at 80°C for 60 minutes for leaching , after filtering, the natural dye stock solution with the function of changing color at pH value is obtained, and then the stock solution is concentrated, solidified and pulverized to obtain powdered natural dye;
[0040] (2) Weigh the powdered natural dye, prepare a natural dye solution with a mass fraction of 0.04%, then add sodium alginate 50 times the mass of the natural dye and with a molecular weight of 500,000 to the solution, stir thoroughly, and vacuum defoam to obtain spinning solution;
[0041] (3) After the spinning liquid passes through the pressurized metering pump, the fibers are sprayed out from the spinneret with a hole diameter of 0.08 mm, and then treated in the coagulation bath of calcium chlo...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com