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.:

US 6582478 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2003

Filed:

Mar. 19, 2001
Applicant:
Inventor:

Kurt Van Wersch, Wegberg, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06L 3/04 ; D06P 3/66 ;
U.S. Cl.
CPC ...
D06L 3/04 ; D06P 3/66 ;
Abstract

The invention relates to a process for preparative and reactive dyeing of cellulose material. In order to shorten the process time of conventional preparing agents and continuous operation, to make superfluous neutralizing agents for removing excess peroxy compounds as well as to reduce the mechanical equipment required vis-à-vis prior art and to reduce the use of chemical agents, the cellulose material soaked with the treatment liquor is continuously dried with pulsated air at approximately the same disintegration rate as the peroxy compounds thus used. Alkali remaining in the material from pretreatment which remained in the material is used for dyefixing said material.


Find Patent Forward Citations

Van Wersch, Kurt. (2003). Process for preparative and reactive dyeing of cellulose material (U.S. Patent No. 6582478). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6582478

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