Colour Chronicle - April 2012 - Clariant

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6 textile Foam Eco Care Energy and cost saving state-of-the-art resin finish History About two years ago Clariant launched their “Premium LT Cure” resin fi nish with their newly developed glyoxalic resin: Arkofi x ® ELF liq conc. With this system Clariant was able to achieve noniron properties on 100% cotton fabrics with a simple pad-dry-cure process (cure at low temperature and without the need of an afterwash) which up to then were only achievable with a moist-curing process. At about the same time Cotton Incorporated started to develop a noniron fi nish on 100% cotton by doing the application of the chemicals with a foam applicator. In September 2009, Clariant and Cotton Incorporated came in contact on this subject of developing a non-iron resin fi nish by foam application (CFS ® ¹ System from Gaston Systems). Objectives Obtain high DP performance – 3.5 to 4.0 DP ratings by AATCC TM 124. Low wet pick-up with foam fi nishing – Less energy consumption. – Chemical reduction by optimum fi nish placement. Premium LT Cure System – Developed by Clariant International Ltd. – Low temperature curing (less energy). – Safer handling than moist curing (less acidity). – No afterwashing. – Low Formaldehyde < 75 ppm by ISO 14184-1 (Japanese LAW 112). Benefits of Foam Eco Care finishing versus traditional Easy Care finish. Energy and water savings. – Less energy consumption because of lower curing temperatures: • Traditional Easy Care: Cure at 170°C • Foam Eco Care: Cure at 130°C. colour chronicle 2 | 2012 Experimental Trial fabrics Cotton poplin, 130 g/m 2 Liquid ammonia (LA) treated Fabric pH 7.0 and alkalinity 0.07% (as NaOH) Procedure Foam Eco Care: 400 g/l Arkofix ® ELF liq c 100 g/l Catalyst NKC liq 80 g/l Ceralube ® SVN liq 40 g/l Solusoft ® MW liq 30 g/l nonionic foaming agent Foam at 30% wet pick-up Top and bottom foam applicators Dry – 110°C, 60 seconds dwell time Cure – 130°C, 3 minutes Reference (pad process – Premium LT – Cure): 200 g/l Arkofix ® ELF liq c 50 g/l Catalyst NKC liq 40 g/l Ceralube ® SVN liq 20 g/l Solusoft ® MW liq 2 g/l nonionic wetting agent Pad with 60% wet pick-up Dry – 110°C, 80 seconds dwell time Cure – 130°C, 3 minutes Remark: Premium LT-Cure is already improved in respect of curing temperature : 130°C instead of 170°C. Results on cotton poplin Smoothness rating 5 4 3 2 1 0 Foam Tear strength 3 2 1 0 Flex abrasion Flex, cycles to break Elmendorf Tear, lbs 400 300 200 100 0 Foam Foam Pad Pad Pad Formaldehyde (ISO 18484-1) Formaldehyde (ppm) 100 80 60 40 20 0 Foam Warp Pad Untreated Warp Filling Untreated Untreated Untreated
Experimental Trial fabrics Cotton denim, indigo dyed, 345 g/m 2 Desized and scoured Fabric pH 8.1 and alkalinity 0.10% (as NaOH) Procedure Foam Eco Care: 400 g/l Arkofix ® ELF liq c 100 g/l Catalyst NKC liq 80 g/l Ceralube ® SVN liq 40 g/l Solusoft ® MW liq 30 g/l nonionic foaming agent Foam at 30% wet pick-up Top and bottom foam applicators Dry – 110°C, 90 seconds dwell time Cure – 130°C, 3 minutes Reference (pad process – Premium LT – Cure): 200 g/l Arkofix ® ELF liq c 50 g/l Catalyst NKC liq 40 g/l Ceralube ® SVN liq 20 g/l Solusoft ® MW liq 2 g/l nonionic wetting agent Pad with 60% wet pick-up Dry – 110°C, 120 seconds dwell time Cure – 130°C, 3 minutes Remark: Premium LT-Cure is already improved in respect of curing temperature : 130°C instead of 170°C Results on cotton denim Smoothness rating Elmendorf Tear, lbs Tensile, lbs 5 4 3 2 1 0 8 6 4 2 0 240 200 160 120 80 40 0 100 80 60 40 20 0 Foam Tear strength Foam Tensile strength Warp Filling Foam Foam Pad Filling Pad Pad Formaldehyde (ISO 18484-1) Pad Untreated Untreated Untreated Untreated textile – Lower wet pickup of foam application compared to pad application (30% compared to 60%) allows for faster speed and reduced energy consumption in drying. – Foam uses less water in the application. Performance – Superior abrasion performance with foam as compared to pad application. – More or less same smoothness ratings. – Low formaldehyde (
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Colour Chronicle - April 2012 - Clariant

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