Tecuscour 705A is a polymeric cleaning agent.
It is very effective as an afterscour for reactive dyestuffs, as well as other water soluble and insoluble dyestuffs.
Tecuscour 705-A is also used in pretreatment and bleaching as a dispersant for sizing agents and to prevent deposits on machine parts and on the fabric. Tecuscour 705A is non-foaming.
Composition: Blend of polymeric 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: light yellow, clear liquid. Ionicity: anionic Reaction: acid, pH 4.0-5.0 Solubility: soluble in water, any ratio Compatibility: compatible with commonly used chemicals. Specific weight @ 25 ºC. approx. 1.05 ( 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: 1. Tecuscour 705A is designed to give maximum scouring efficiency for dyestuff particles on the surface of the fiber as well as unreacted and crystallized dyes. The product removes these substances from the fiber surface and keeps them in suspension.
Tecuscour 705A has strong antiredeposition properties, resulting in the best possible fastness properties. The product can be used on all equipment, e.g. jets, beams, package machines and continuous washing machines.
2. In pretreatment Tecuscour 705-A keeps all contaminants, including sizing compounds, in suspension, and prevents deposits on machine and fabric. Tecusour 705-A does not foam and is therefore well suited for jets and continuous bleaching ranges. Application examples: 1. Afterscour. 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 at 120 ºF to remove all alkali and salt, and then soaped with 0.5-2 g/l of Tecuscour 705A at 190 ºF for 15 minutes. A last warm and cold is advisable. Package, cotton and polyester/cotton: After dyeing procedure: -rinse: 2x 10 min. at 120 ºF -scour: 1-2 g/l Tecuscour 705A heat to 190 ºF and run for 10 minutes. -rinse: 1x 10 min. at 140 ºF -rinse cold Jets, cotton and polyester/cotton: After dyeing procedure: -rinse: 2x (for PES/Co) or 3x (for Cotton) 10 min. at 120 ºF -scour: 1 g/l Tecuscour 705A heat to 190 ºF and run for 10 minutes -rinse: 1x 10 min. at 140 ºF for PES/Co or 2x 10 min. at a)160 ºF and b)100 ºF 2. Continuous pretreatment including bleaching. In general, 5 – 10 g/l is added to impregnator liquor. As Tecuscour 705-A is stable in alkali and oxidizers, it can be added to the boil-off and bleaching liquors.