The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2020
Filed:
Mar. 01, 2020
Applicants:
Taotao Qiang, Xi'an, CN;
Yadong Pu, Xi'an, CN;
Qi Zhang, Xi'an, CN;
Inventors:
Assignee:
SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY, Xi'an, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06M 19/00 (2006.01);
U.S. Cl.
CPC ...
D06M 19/00 (2013.01);
Abstract
A method for preparing a high fluffiness down by multiple treatments with metal salts includes: degreasing a down sample with a degreasing agent; washing the down sample with water; oxidizing the down sample with an oxidizing agent; washing the down sample with water; conducting a first crosslinking treatment with basic zirconium sulfate; washing the down sample with water; conducting a second crosslinking treatment with basic aluminum sulfate; washing the down sample with water; and drying the down sample to obtain the high fluffiness down.