Tecuscour RD is an afterscouring agent specific for the soap-off of reactive dyes.
The results are much improved wet fastness properties.
Tecuscour RD can also be used in the dyebath to solubilize dyestuffs. It has water-softening properties and helps stabilize the shade. Tecuscour RD does not foam. Composition: Blend of polymeric, dispersing and complexing agents. Handling: No special precautions are to be taken, however, as with any highly concentrated chemical, observe good industrial hygienic practices and wear appropriate eye and skin protection. See MSDS for details.
DOT class.: NR Properties: Appearance: brown, clear liquid. Ionicity: anionic Reaction: slightly acidic, pH 4.5-6.5 Solubility: soluble in water, any ratio Compatibility: compatible with commonly used chemicals. Specific weight @ 25 ºC. approx. 1.05 g/cm³ ( 8.75 lbs/gal) Storage stability more than one year. Freezing characteristics: very cold temperatures freeze the product, however, the product is fully reusable after thawing and stirring. Uses: Tecuscour RD shows maximum scouring efficiency for reactive dyestuff particles that are left on the surface of the fiber after the dyeing process.
The product removes the crystalized particles from the fiber and keeps them in suspension. Tecuscour RD also has strong antiredeposition properties, resulting in the best possible wet fastness properties. The product can be used on all equipment, e.g. jets, beams, package machines and continuous washing machines.
Application examples: The quantities used are a function of the liquor ratio and the depth of shade, as well as the fastness requirements. After the dyeing, the material is rinsed two times with hot water to remove all alkali and salt, and then soaped with 1-3 g/l of Tecuscour RD at 90 ºC for 15 minutes. A last warm and cold rinse is advisable. Package, cotton and polyester/cotton: After dyeing procedure: -rinse: 2x 10 min. hot -scour: 1-3 g/l Tecuscour RD heat to 90 ºC and run for 10 minutes. -rinse: 1x 10 min. at 60 ºC -rinse cold Jets, cotton and polyester/cotton: After dyeing procedure: -rinse: 2x (for PES/Co) or 3x (for Cotton) 10 min. hot -scour: 1-2 g/l Tecuscour RD heat to 90 ºC and run for 10 minutes -rinse: 1x 10 min. at 60 ºC for PES/Co or 2x 10 min. at a) 60 ºC and b) 40 ºC