Patent · US Expired

Method of imparting stain resistance to a differentially dyeable textile surface and the article produced thereby

US6852134B2 · kind B2 · utility

4Cited by

19References

10Claims

0Family size

Assignee

INVISTA North America S.a.r.l. · US

Inventors

Markus Baumann · Ergolding, DE
Rainer Heinz · Espelkamp, DE
Klaus Stark · Witten, DE

Key dates

Filing date	Jan 2, 2002
Grant date	Feb 8, 2005
Priority date	—
Expiry date	May 14, 2022

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P5/08
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method of treating articles having a textile surface (such as broadloom carpets or carpet tiles) with a stainblocker composition is disclosed.A pile surface structure having pile elements containing nylon yarns having both acid dyeability and cationic dyeability is dyed with both acid dye and cationic dye and then passed through a hot stainblocker treatment bath and a cooling zone. Substantially the entire height of each pile element is coated with a stainblocker composition whereby the pile surface structure has a stain resistance of 9 or higher on the AATCC Red 40 Stain Scale. The resulting pile surface has good color separation and stability, and no color loss from the catatonically dyeable yarns.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.