Title: Process for preparing nano silver colloidal water solution
Application Number: 200410069105 Application Date: 2004.07.06
Publication Number: 1586774 Publication Date: 2005.03.02
Approval Pub. Date: 2006.11.29 Granted Pub. Date: 2006.11.29
International Classifi-cation: G03C1/00,B22F9/24
Applicant(s) Name: China Lucky Film Group Co. Address: 071054
Inventor(s) Name: Song Hongqin, Yan Ying
Attorney & Agent: cai zhiyong jie yubin
Abstract:
     The present invention relates to the preparation process of nano silver colloidal water solution. By means of double injection controlling technology and under the stirring with the stirrer, argentamine and reductant aqua are injected simultaneously into the reaction system containing protecting agent aqua to generate nano silver particle, and through ultrafiltering to desalt, nano silver colloidal water solution with average size smaller than 50 nm is obtained. Thus obtained nano silver colloidal water solution is stable, good in dispersion, small and homogeneous in size, and the preparation process is automatic, short in production period, low in cost and suitable for industrial production.
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