US PATENT SUBCLASS 8 / 458
.~.~ Chemically modified local areas

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

445  DF  PROCESS OF PRINTING PERMANENTLY ON SUBSTRATE, OTHER THAN NOMINAL PRINTING, USING PRINT PASTE CONTAINING DISCHARGE MATERIAL, RESIST MATERIAL, OR DYE MATERIAL; OR STENCIL DYEING {4}
457  DF  .~ Discharge utilized {7}
458.~.~ Chemically modified local areas

DEFINITION

Classification: 8/458

Chemically modified local areas:

(under subclass 457) Processes wherein local or selected areas of the substrate are chemically modified so that they are dyed differently from the untreated parts.

SEE OR SEARCH THIS CLASS, SUBCLASS:

115, for similar pattern effects obtained without coloring.

120, and 181+, for immunizing, per se.