DE2439878

• Main Authors: FUJII, FUMIO, KOGA, TOSHIHIRO, SETAKA, FUKUOKA, JP, IGATA, AKITOSHI, OMUTA, FUKUOKA, JP, KURAHARA, KOJI
• Format: Patent
• Language: English
• Published: 17.04.1986
• Edition: 4
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOUNDS OF UNKNOWN CONSTITUTION; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; DYES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAKES; LAUNDERING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC CHEMISTRY; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF TEXTILES OR THE LIKE

The prodn. of a surfactant comprises reacting cresol, HCHO, NaSO3 and 2-hydroxynaphthalene (I) in water as solvent at normal pressure. The pref. proportions are 1.0-4.0 mole HCHO and 0.4-1.5 mole Na2SO3 per mole cresol and 5-30 (wt.) pts. (I) and 280-500 pts. water per 100 pts. cresol. The HCHO pref. is added to the water after the addn. of the other reagents, the temp. being kept below 50 degrees C until all the HCHO has been added and then between 60 degrees C and the b.pt. of the system. The surfactant is used in conjunction with dispersion dyes in the thermosolve process for selective dyeing of polyester fibres opt. in mixed textiles with cellulose. The surfactant has very high dispersion power and little or no dyeing of the cellulose occurs. HCHO is pref. added in the form of formalin, whilst m-cresol, synthetic m-cresol and/or fractionated cresol is used.