LABORATORY TO BULK REPRODUCIBILITY--A QUESTION OF SCALE

Achieving reproducible dyeing results is a difficult job. For suppliers of dyed synthetics to the fashion industry, where custom dyeing is market driven, achieving accurate first time results is especially important. In order for a laboratory to achieve bulk reproducibility, it must first achieve laboratory reproducibility. Laboratory pra..

HISTORY OF TEXTILE DYEING

CONCEPTION OF RE-USE OF THE WASTES FROM THE DYEING PROCESS.

TEACHING THE BASICS OF COLOR.

ICS-Texicon offers courses in color management, color measurement, database control, and the dispensing of dyes. A telephone hot-line service is available for immediate support. Courses are available for review and advanced training.

WINCH-BECK DYEING OF CUT-PILE CARPETS.

Winch dyeing of cut-pile carpets is discussed with respect to the use of acid leveling dyes, anti-set-release agents, and proper handling methods to prevent crease marks. Surface fuzz was removed by shearing. These carpets were dyed in open width or rope form.

FUNDAMENTAL KNOWLEDGE OF COLOR STREAKINESS ON POLYAMIDE FABRICS

Causes of undesired color streaks are presented. Preventive measures are explained. 12 refs.

NEON DYEING.

Subcontractors in the laundry industry are using neon dyeing technology to dye garments such as T-shirts and sweatshirts. The technology can be adapted to a variety of machines and uses only for colors without blending or mixing. The chemicals and dyes are fully exhausted, resulting in deep, reproducible shades at low costs.

DYEING AND COLORFASTNESS CHARACTERISTICS OF DIRECT-DYED RAMIE IN COMPARISON TO FLAX AND COTTON.

Dyeability and colorfastness were compared in ramie, flax, and cotton yarns dyes with direct dyes. When dyed in a common dyebath, shade depended on the dye. There was consistently less difference between ramie and flax than between ramie and cotton. Even when ramie had a lower dye content than either flax or cotton, the relative depth of ..

PROBLEMS WITH DIRECT AND VAT DYES APPLIED TO CELLULOSE FIBERS.

The affinity of direct and vat dyes for cellulose fibers is examined by comparing these dyes with dyes that differ only by their chromophore groups. It was revealed that another factor might be responsible for their affinity. An aromatic diamine was used to initiate the synthesis of these dyes through tetrazotization, coupling, or condens..

ATTEMPTS TO STANDARDIZE TEST METHODS FOR SURFACTANTS AND TEXTILE AUXILIARIES. PART 38. DETERMINATION OF THE MIGRATION-INHIBITING EFFECT OF PADDING AUXILIARIES.

Factors affecting dye migration during drying include the type of fiber and dye, liquor pick-up, drying speed, and pad liquor additives. Additives that increase the substantivity and agglomeration of dyes exert a migration-inhibiting effect. Dye migration and the migration-inhibiting effect of these additives are tested using the sandwich..