US PATENT SUBCLASS 8 / 445
PROCESS OF PRINTING PERMANENTLY ON SUBSTRATE, OTHER THAN NOMINAL PRINTING, USING PRINT PASTE CONTAINING DISCHARGE MATERIAL, RESIST MATERIAL, OR DYE MATERIAL; OR STENCIL DYEING

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

445PROCESS OF PRINTING PERMANENTLY ON SUBSTRATE, OTHER THAN NOMINAL PRINTING, USING PRINT PASTE CONTAINING DISCHARGE MATERIAL, RESIST MATERIAL, OR DYE MATERIAL; OR STENCIL DYEING {4}
446  DF  .~> Resist or reserve {10}
457  DF  .~> Discharge utilized {7}
465  DF  .~> Vat dye or sulfur dye, e.g., quinonic or indigoid reducible dye, sulfur organic compound reaction product dye, etc.
466  DF  .~> Azo dye

DEFINITION

Classification: 8/445

PROCESS OF PRINTING PERMANENTLY ON SUBSTRATE, OTHER THAN NOMINAL PRINTING, USING PRINT PASTE CONTAINING DISCHARGE MATERIAL, RESIST MATERIAL, OR DYE MATERIAL; OR STENCIL DYEING:

(under the class definition) Processes involving the application of dyes on localized areas of a substrate by impression with a thickened dye paste or through openings or previous portions of a pattern sheet (stencil).

(1) Note. This and indented subclasses also include methods for the production of patterns by the application of substances to prevent coloration in local areas of the material or for discharging the color in a previously dyed ground, as well as chemical modification of local areas of the substrate so as to enhance or prevent dyeing in such areas.

(2) Note. The recitation of screen printing, resist, reserve, or discharge or detailed manipulative steps directly related to the printing are considered to be more than mere printing and as such are proper for this area.

(3) Note. Excluded from this subclass as being considered nominal are methods reciting conventional printing steps, e.g., steaming, washing or soaping, drying, fixing, etc.

(4) Note. For purposes of this subclass resist and reserve have been used interchangeably.

(5) Note. The distinction between Class 106, subclass 31.27 and this area is that the coloration in this class is produced by imbibition and absorption by or combination with material. Class 106 usually involves an insoluble pigment suspended in an oleaginous vehicle, while this class usually involves a soluble dye in an aqueous paste. Generally, the prints of this class must be developed by steaming or chemical treatment, while in Class 106, simple drying is the more usual manner. Processes employing the compositions, of Class 106 are found in Class 427, Coating Processes.

SEE OR SEARCH CLASS 106, Compositions: Coating or Plastic,

31.27+, for a printing ink.