Testing detergents : establishing efficient methods for formulation, QC and comparative assessment / Tony Copley in SOFW JOURNAL, Vol. 143, N° 4 (04/2017)  

[article]  inSOFW JOURNAL > Vol. 143, N° 4 (04/2017) . - p. 38-43 Titre : Testing detergents : establishing efficient methods for formulation, QC and comparative assessment Type de document : texte imprimé Auteurs : Tony Copley, Auteur Année de publication : 2017 Article en page(s) : p. 38-43 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Détergents Essais (technologie) -- Appareils et matériels Etudes comparatives Evaluation Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Detergents are ubiquitous within our homes with increasingly sophisticated formulations cleaning our clothes, crockery and cutlery to exacting standards, in a wide array of domestic appliances. The effective removal of different types of soiling is essential but it is also critical to maintain the integrity of the item being washed. Reducing the environmental burden of routine cleaning is an ongoing target and drives trends towards enhanced performance at louver wash temperatures, and the use of more environmentally benign ingredients. Detergent re-formulation is an ongoing, continuous activity. To support formulation, for QC and for comparative performance testing, detergent manufacturers require relevant, reproducible, cost-efficient tests that can be applied easily in the laboratory. For laundry products this need extends to textile manufacturers, since the maintenance of colour and integrity in the face of successive washes is intrinsically associated with higher quality fabrics. Ultimately, the performance and impact of detergents is assessed under real-life conditions using a domestic appliance, but this is time consuming, costly and has a number of other limitations, with respect to routine use within the lab. The Tergotometer was introduced in the 1950s specifically for laundry detergent testing within the laboratory and the core design remains in widespread use today ; a testament to its relevance and value. In the intervening decades, this design has been refined to exemplary efficiency, and adapted to deliver an effective set-up for dishwasher detergent testing. ln tandem, testing strategies have evolved considerably, not least as a result of the introduction of associated international standards. With a modern Tergotometer, built to exacting specifications, and a rigorously considered test protocol, even closely similar, high performance detergents can be reliably differentiated in a highly energy and water efficient manner. In this article we examine the requirements for detergent testing, the factors that influence results and the application of the Tergotometer for both laundry and dishwashing products, highlighting its benefits relative to alternative techniques. The primary aim is to provide the understanding and background information required to instigate effective laboratory testing based on modern equipment and strategies so as to cost efficiently generate data to support product development and manufacture. Note de contenu : - UNDERSTANDING TEST REQUIREMENTS - ESTABLISHING A TESTING STRATEGY : Test equipment - Test conditions and materials - Assessment - FIGURES : 1. A tergotometer set up for routine laundry testing with optional refrigeration unit installed for operation between 10°C and 70°C - 2. Test station for laundry detergents with and without standardised pre-soiled fabric swatches - 3. Test station for diswasher detergents prior to and during the test En ligne : https://drive.google.com/file/d/1DdgEG1n6EY8uPBq-SQc1cci0WB2PmtYJ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28545 [article]

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