Antifoams / Deoamerf s TEGO Antifoam - Textile …

1 Antifoams / defoamers tego AntifoamMember Company of Fong s Industries Group2 About UsEvonik is the creative industrial group from Germany which operates in three business areas: Chemicals, Energy and Real Estate. Evonik is a global leader in specialty chem-icals, an expert in power generation from hard coal and renewable energies, and one of the largest private residential real estate companies in Ger-many. Our strengths are creativity, spe-cialization, continuous self-renewal, and reliability. Evonik is active in over 100 countries around the Business Line Interface & Performance of Evonik has its base in all kinds of organic specialty surfactants and organomodified siloxanes. We hold strong positions with Antifoams , emulsifiers, corrosion inhibitors, dispersing aids, hydrophobing and wetting agents, softeners and radiation curable release coatings. Our broad product range, technological background and application know-how addresses several industries like plastics, rubber, label, tape and release liner manufacturing, construction, lubricants, agro, Textile and tissue RangeAside from the beneficial characteristics of surfactants (leveling agents, scouring agents, wetting agents etc.)

2 , they are also responsible for the formation of foam during almost all stages of production. For instance, the jet fills with foam and the production cannot proceed at opti-mum speed. Care has to be taken that the applied Antifoam does not negatively impact the fabric quality by staining the fabric, or does not disturb the machine Antifoam /defoamer product range comprises: Concentrates Emulsion concentrates Ready to use emulsionsDepending on the Antifoam / defoamer, it can be either added as an internal anti-foam thus being incorporated into the Textile auxiliary to prevent foam forma-tion, or added as an external Antifoam , whereby being added at the occurrence of the foam to destroy it. Figure 1. Mechanism of defoaming = defoamerThe Textile industry is facing many conflicting challenges, such as the need for higher efficiency, reducing cost through shorter product cycles while maintaining a high quality standard and continuously providing innovation.

3 Enteringspreading12345ruptureescaping gas4 Key Application PropertiesEvonik offers Antifoams / defoamers based on organo-modified siloxanes. High stability as well as high efficiency during various Textile application processes merge the advantanges of both organic and silicone Antifoams . In addition, we offer silica and silicone oil free following table summarizes the relevant property profiles of our Antifoams / %Advantages and Application SuggestionsTEGO Antifoam 793 Concentrate based on organo-modified siloxanesNon-ionicLiquid100 Water dispersable, no silicone spotting, no reverse effect on printability, excellent stability as concent-rate. Pre-defoaming of surfactant concentrates with less than 30 % water Antifoam 3062 Concentrate based on organo-modified siloxanesNon-ionicLiquid100No silicone spotting, no reverse effect on printabi-lity, excellent stability as concentrate. Pre-defoa-ming of surfactant concentrates with less than 20 % water Antifoam MR 1015 Emulsion concentrate based on organo- modified siloxanesNon-ionicLiquid70 Excellent stability in alkaline conditions, even at elevated temperatures.

4 Jet-stable. Pre-defoaming of surfactant concentrates. In aqueous media, the use of pre-dilutions (1:3 to 1:10 in water) is re-commended. Ready to use predilutions are availa-ble on Antifoam 7001 Jet stable Antifoam concentrateNon-ionicLiquid40 Emulsion concentrate with excellent jet stability and good electrolyte tolerance. Easy to dilute. Sui-table for the production of ready to use dilutions. Recommended for jet dyeing of Antifoam 2290 Silica and silicone oil free defoamer concent-rateNon-ionicLiquid100 Easy to handle as on line defoamer, for white water in nonwoven production using water Antifoam PS 10(Europe)Emulsion based on organo-modified siloxanes and other ingredientsNon-ionicLiquid10 Antifoam for jet dyeing. No silicone spotting. Pre-dilutions have to be used immediately after Antifoam 32 H 10 (Asia)Emulsion based on organo-modified siloxanes and other ingredientsNon-ionicLiquid16 -17 Antifoam for jet dyeing.

5 No silicone spotting. Pre-dilutions have to be used immediately after data and use recommendations for tego Antifoam 7001 jet defoamerTEGO Antifoam 7001 provides efficient foam knock down, while the competition products do not suppress the foam sufficiently over the whole dyeing of polyamide fabric in a laboratory Jet Dyeing Machine (Mathis)Parameters:pump nozzle 50%, reel speed 17m/minFabric:PA elastic knitted fabricLiquor ratio:1:30 Recipe:Nylosan Red % Dyestuff from ClariantDymatic g/l Leveling agent from Dymatic (Alkylsulfonate)Acetic g/l Adjustment of pH ~ g/l (based on solid)Foam build-up during dyeing processAdd the chemicals at 40 C, heat up to 100 C ( C/min) hold for 100 C for 30 min, cool down to 70 C ( C/min).40 C70 C/min100 C for 30 C/min70 C40 C70 C100 C for 30 C/min05101520253035400102030405060708090 time / minfoam height / cmTA 7001 Comp. 1 Comp. 2 Comp. 3 Comp. 46 Recommendations for dilutionProduction (at room temperature):Charge the water into the vessel.

6 Add tego XP 2226 and stir for 1 min. Add caustic soda and stir until dilution is homogenous and thick. Stop stirring and add tego Antifoam 7001 and preserva-tive. Start stirring at low shear rates until mixture is homogenous (approx. 5 min). Stop stirring and formulation for stable, ready to use diluted emulsions of tego Antifoam 7001:10% active20% activeDemineralised partsTEGO XP parts partsCaustic Soda ( ) partsTEGO Antifoam parts7 Dosage/HandlingTEGO Antifoam 7001 can be applied as it is or in a diluted version. Dosage level may vary in dependence of process condi-tions. For preliminary trials we recom-mend a dosage of tego Antifoam 7001 between % and % (as is). Fur-ther dilution in production process is pos-sible. For use in jet dyeing applications a predilution of Antifoam in water (1 part in 4 parts of water) is recommended. Dosage level for dyeing in jet machines also depends on the kind and concentra-tion of leveling agents and dyeing sys-tems.

7 The following table has to be seen as an orientation guide and is based on the lab jet results (% is based on actives).Dosage recommendationfabricSurfactant(s)Dosage of tego Antifoam 7001 PAalkane sulfonate ( %)< %COalkane sulfonate ( ) / alcohol ethoxylate ( %) %PESalcohol ethoxylate ( %) % : 64-15 This information and any recommendations, technical or otherwise, are presented in good faith and believed to be correct as of the date prepared. Recipients of this information and recommendations must make their own determination as to its suitabil-ity for their purposes. In no event shall Evonik as-sume liability for damages or losses of any kind or nature that result from the use of or reliance upon this information and recommendations. EVONIK EXPRESSLY DISCLAIMS ANY REPRESENTATIONS AND WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, AS TO THE ACCURACY, COMPLETENESS, NON-INFRINGEMENT, MER-CHANTABILITY AND/OR FITNESS FOR A PAR-TICULAR PURPOSE (EVEN IF EVONIK IS AWARE OF SUCH PURPOSE) WITH RESPECT TO ANY INFORMATION AND RECOMMENDATIONS PROVIDED.

8 Reference to any trade names used by other companies is neither a recommendation nor an endorsement of the corresponding product, and does not imply that similar products could not be used. Evonik reserves the right to make any changes to the information and/or recommendations at any time, without prior or subsequent | PacificThe AmericasEurope | Middle East | AfricaEvonik Nutrition & Care GmbH Goldschmidtstra e 100 45127 Essen GermanyPhone +49 201 173-2665 fax +49 201 173-1990 Specialty Chemicals (Shanghai) Co., Ltd. 55, Chundong Road Xinzhuang Industry Park Shanghai, 201108PR ChinaPhone +86 21 6119-1125 fax +86 21 6119-1406 Evonik Corporation 7801 Whitepine Road Box 34628 Richmond, VA 23234 USA Phone +1 804 727-0700 fax +1 804 727-0855