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:
Dec. 18, 1990
Filed:
Dec. 22, 1989
Applicant:
Inventors:
Hilary Walker, Marietta, GA (US);
Edward P Bullwinkel, Roswell, GA (US);
Assignee:
Kimberly-Clark Corporation, Neenah, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
8645 ; 8633 ; 8919 ; 162162 ; 162176 ; 2524081 ; 436101 ; 436103 ;
Abstract
A triiodide-phosphoric acid stain when applied to either moist or dry fiber samples produces a range of colors indicative of the fiber species and the degree of refining of the fiber. The stain is made from an aqueous triiodide solution of about 0.6M in potassium iodide and about 0.1M in iodine and is mixed with an acid solution about 77 percent by weight of phosphoric acid in a ratio of about 1 to 100 v/v of triiodide to acid just prior to its application to the fiber samples to be stained.