{"id":1334,"date":"2013-12-23T03:05:23","date_gmt":"2013-12-23T03:05:23","guid":{"rendered":"https:\/\/awta.swim.net.au\/news\/chemical-treatments-in-scoured-wool\/"},"modified":"2013-12-23T03:05:23","modified_gmt":"2013-12-23T03:05:23","slug":"trattamenti-chimici-nella-lana-rasata","status":"publish","type":"news","link":"https:\/\/awta.com.au\/it\/notizie\/trattamenti-chimici-nella-lana-rasata\/","title":{"rendered":"Trattamento chimico - In lana rasata"},"content":{"rendered":"<p><em>IL TEST DI SOLUBILIT\u00c0 AGLI ALCALI<\/em><\/p>\n<p>La lana lavabile pu\u00f2 spesso essere sottoposta a una serie di trattamenti chimici per uniformare il suo colore o per fornire ulteriori propriet\u00e0 che ne migliorino l'uso previsto.<\/p>\n<p>I test sui danni si basano sul principio che la lana mostra una maggiore solubilit\u00e0 in soluzioni alcaline quando viene attaccata da agenti ossidanti o riducenti, da acidi o dall'esposizione al calore o alla luce. La maggior parte dei test sulla lana sgrossata viene condotta per quantificare i danni causati dal candeggio con perossido di idrogeno, una sostanza chimica regolarmente utilizzata per ottenere un aspetto visivo pi\u00f9 bianco della lana.<\/p>\n<p><em>Lo standard di solubilit\u00e0 degli alcali:<\/em> Questo test \u00e8 condotto secondo il metodo IWTO DTM-4. Comporta il trattamento di un campione di lana secca in idrossido di sodio in condizioni controllate di tempo, temperatura e volume. La solubilit\u00e0 agli alcali viene calcolata come perdita di massa del campione trattato espressa in percentuale della sua massa secca al forno.<\/p>\n<p>I risultati riportati sono:<\/p>\n<p>(a) il pH dell'estratto acquoso<\/p>\n<p>(b) La solubilit\u00e0 alcalina individuale per ogni campione e il risultato medio del campione.<\/p>\n<p>Il test \u00e8 pi\u00f9 utile quando \u00e8 disponibile un campione di controllo non trattato e quando \u00e8 nota la natura del trattamento del campione in esame. Il test non fornisce una misura assoluta del danno, ma \u00e8 utile come indicatore dei livelli relativi di danno.<\/p>\n<p><span style=\"color: #808080;\"><strong>Scarica - Scheda informativa:<\/strong> <a href=\"index.php?option=com_edocman&amp;task=document.download&amp;id=107\">Il test di solubilit\u00e0 degli alcali<\/a><span class=\"doc_image\"><img decoding=\"async\" title=\"PDF\" alt=\"PDF\" src=\"\/app\/images\/media\/mime-icon-16\/pdf.png\" \/><\/span><\/span><\/p>\n<p><span style=\"color: #808080;\"><strong>Per maggiori informazioni<\/strong><\/span>.....on test di solubilit\u00e0 degli alcali, contattare NZWTA al numero +64 6 835 1086 o inviare un'email a&nbsp;<a href=\"mailto:testing@nzwta.co.nz\">testing@nzwta.co.nz<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>IL TEST DI SOLUBILIT\u00c0 DELL'ALCALIO La lana da macero pu\u00f2 spesso essere sottoposta a diversi trattamenti chimici per uniformare il suo colore o per fornire ulteriori propriet\u00e0...<\/p>","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"class_list":["post-1334","news","type-news","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chemical Treatment - In Scoured Wool - AWTA Limited<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/awta.com.au\/it\/notizie\/trattamenti-chimici-nella-lana-rasata\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chemical Treatment - In Scoured Wool - AWTA Limited\" \/>\n<meta property=\"og:description\" content=\"THE ALKALI SOLUBILITY TEST Scouring wool can often involve a number of chemical treatments in order to standardise its colour or provide additional properties to impro\u2026\" \/>\n<meta property=\"og:url\" content=\"https:\/\/awta.com.au\/it\/notizie\/trattamenti-chimici-nella-lana-rasata\/\" \/>\n<meta property=\"og:site_name\" content=\"AWTA Limited\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/awta.com.au\/zh_cn\/news\/chemical-treatments-in-scoured-wool\/\",\"url\":\"https:\/\/awta.com.au\/zh_cn\/news\/chemical-treatments-in-scoured-wool\/\",\"name\":\"Chemical Treatment - In Scoured Wool - AWTA Limited\",\"isPartOf\":{\"@id\":\"https:\/\/awta.com.au\/zh_cn\/#website\"},\"datePublished\":\"2013-12-23T03:05:23+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/awta.com.au\/zh_cn\/news\/chemical-treatments-in-scoured-wool\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/awta.com.au\/zh_cn\/news\/chemical-treatments-in-scoured-wool\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/awta.com.au\/zh_cn\/news\/chemical-treatments-in-scoured-wool\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/awta.com.au\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"News\",\"item\":\"https:\/\/awta.com.au\/news\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Chemical Treatment &#8211; 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