Method of imparting stain resistance to a differentially...

Bleaching and dyeing; fluid treatment and chemical modification – Pattern effect dyeing – process – compositions – or products – Two or more sequential dye application steps

Reexamination Certificate

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Details

C008S495000, C008S531000, C008S539000, C008S151000, C427S393400, C427S430100, C427S322000

Reexamination Certificate

active

06852134

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.

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