US PATENT SUBCLASS 8 / 542
.~ Pretreatment of substrate

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

541  DF  ACYLATING AGENT OR CROSS-LINKER DYE ADDITIVE, COMPOSITION, PROCESS, OR PRODUCT {1}
542.~ Pretreatment of substrate

DEFINITION

Classification: 8/542

Pretreatment of substrate:

(under subclass 541) Subject matter where the substrate is pretreated with the acylating agent or cross-linker.