Prestogen® D 2000 - Prismadye

Technical InformationMarch 2010 Page 1 of 51 st Edition® = Registered trademark ofBASF SE in many countriesPrestogen ® D 2000Stabilizer for bleaching cotton and polyester-cotton blends withhydrogen peroxide, mainly in continuous processes.

March 2010 Page 2 of 5 Prestogen ® D 2000Chemical naturePhysical formShelf lifeMixture of salts of organic polyacids.Clear, yellowish liquid.Prestogen ® D 2000 can be kept in the original sealed containers attemperatures between 5 °C (41 °F) and 30 °C (86 °F) for at least 12months. Partly used containers should be kept tightly closed and usedup as soon as possible.PropertiespH Approx. 3,0Setting pointSolubilityStabilityApprox. - 5º CCan be stirred into bleaching baths direct.Prestogen ® D 2000 is stable to electrolytes, and therefore it does notcream even in concentrated stock liquors.ActionPrestogen ® D 2000 allows a silicate free bleaching of cotton andpolyester/cotton with hydrogen peroxide, particularly in continuousprocessing. The product does not foam even at high processingspeeds.The product property data merely provide an indication of how theproduct is to be used. They do not constitute the agreed quality of theproduct, nor are they the object of regular quality control tests.ApplicationRecipesThe recipes given below are for guidance only. Because of the manypotential variations in practice, preliminary tests are stronglyrecommended.Traditional procedureDesizing – scour – bleachConventional steamer 20 – 40 ml/Kg Hydrogen peroxide, 50%3 – 6 g/Kg Caustic Soda2 – 3 ml/Kg Kieralon ® L-MFB4 – 8 ml/Kg Prestogen ® D 2000Liquor pick up: Approx. 100%Reaction temperature: 98 – 100º CReaction time: 1 – 3 min.

March 2010 Page 3 of 5 Prestogen ® D 2000Combination steamer 20 – 40 ml/Kg Hydrogen peroxide, 50%2 – 5 g/Kg Caustic Soda6 – 8 ml/Kg Prestogen ® D 20002 – 3 ml/Kg Kieralon ® L-MFBLiquor pick up: Approx. 100%Reaction temperature: 98 – 100º CReaction time: 5 – 20 min.BASF-SOFT-BLEACH-processDesizing and simultaneous pre-extraction with Lusynton ® SE (see TI)followed by bleaching and simultaneous boil-off.Combination steamer1. Normal liquor pick up30 – 60 ml/Kg Hydrogen peroxide, 50%5 – 10 g/Kg Caustic Soda7 – 10 ml/Kg Prestogen ® D 20002 – 3 ml/Kg Kieralon ® L-MFBLiquor pick up: Approx. 100%Reaction temperature: 98 – 100º CReaction time: 5 – 20 min.2. Maximum liquor pick up20 – 50 ml/Kg Hydrogen peroxide, 50%10 – 20 g/Kg Caustic Soda8 – 12 ml/Kg Prestogen ® D 20002 – 3 ml/Kg Kieralon ® L-MFBLiquor pick up: MaximumReaction temperature: 98 – 100º CReaction time: 5 – 20 min.

March 2010 Page 4 of 5 Prestogen ® D 2000Open width 10 – 20 ml/Kg Hydrogen peroxide, 50%3 – 5 g/Kg Caustic Soda6 – 10 ml/Kg Prestogen ® D 20002 – 3 ml/Kg Kieralon ® L-MFBLiquor pick up: Approx. 100%Reaction temperature: 98 – 100º CReaction time: 10 – 30 min.J-box, Conveyor 8 – 15 ml/Kg Hydrogen peroxide, 50%2 – 3 g/Kg Caustic soda 100%4 – 5 ml/Kg Sodium silicate 38 °Bé2 – 3 g/Kg Prestogen ® D 20002 – 3 g/Kg Kieralon ® L-MFBLiquor pickup: Approx. 100%Reaction temperature: 85 – 90 °CReaction time: 1 – 2 hoursCold bleach 30 – 50 ml/L Hydrogen peroxide, 50%10 – 25 g/L Caustic soda 100%7 – 10 ml/L Sodium Silicate 38 °Bé(3 g/L Persulphate)5 – 6 g/L Prestogen ® D 20006 – 7 g/L Kieralon ® L-MFB0,5 – 1 g/L Leophen ® MLiquor pickup: Approx. 80 – 100%Reaction temperature: Room temperatureReaction time: 20 hours

March 2010 Page 5 of 5 Prestogen ® D 2000SafetyBy the current knowledge Prestogen ® D 2000 has no adverse effectsif it is used in an appropriate manner and for the purpose as intended.Handling the product properly and with the measures of precaution andhygienic protection needed for all work with chemicals, such as goodventilation / exhaustion from work and use of gloves and eyeprotection, and following the indications of our Safety Data Sheet cansaid that according to our experience and information we have, thePrestogen ® D 2000 does not cause any damage to health.NoteThe data contained in this publication are based on our currentknowledge and experience. In view of the many factors that may affectprocessing and application of our product, these data do not relieveprocessors from carrying out their own investigations and tests; neitherdo these data imply any guarantee of certain properties, nor thesuitability of the product for a specific purpose. Any descriptionsdrawings, photographs, data, proportions, weights, etc. given hereinmay change without prior information and do not constitute the agreedcontractual quality of the product. It is the responsibility of the recipientof our products to ensure that any proprietary rights and existing lawsand legislation are observed. Responsibility for compliance with therequirements of the downstream textile market rests with the textileprocessor.BASF S.A.Business Management Textiles Chemicals Americas3600 Brig. Faria Lima Ave, 10th Fl.São Paulo – Braziltextile@basf.com