{"id":2718,"date":"2019-12-05T08:54:14","date_gmt":"2019-12-05T08:54:14","guid":{"rendered":"https:\/\/www.publiteconline.it\/assemblaggio\/?p=2718"},"modified":"2019-12-05T08:54:29","modified_gmt":"2019-12-05T08:54:29","slug":"ultra-high-viscosity-jetting-of-optical-materials-a-solution-by-delo-and-xaar","status":"publish","type":"post","link":"https:\/\/www.publiteconline.it\/assemblaggio\/ultra-high-viscosity-jetting-of-optical-materials-a-solution-by-delo-and-xaar\/","title":{"rendered":"Ultra-High Viscosity Jetting of Optical Materials: a Solution by DELO and Xaar"},"content":{"rendered":"\n

Most inkjet printheads are capable of jetting materials with viscosities with a range of 10-25 mPa\u00b7s (10-25 cP). Thanks to Xaar\u2019s<\/a> TF Technology, DELO<\/a>\u2019s advanced optical fluids which have significantly higher viscosities can now be successfully jetted<\/strong>. In this application, fluids with a viscosity of 250 mPa\u00b7s at room temperature are heated to 43\u00b0 C, reducing the viscosity to 63.5 mPa\u00b7s and enabling them to be effectively ejected with Xaar\u2019s printheads. Having the capability to jet fluids with viscosities greater than 25 mPa\u00b7s provides much more flexibility for manufacturers of optical elements in consumer electronics and automotive applications, offering an alternative or addition to the predominantly used imprint technology for selected applications like micro lenses. For nano-imprint applications, inkjet-printing can also replace spin-coating, reducing material waste by up to 80 percent. <\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n
Optical materials based on\nUV-curing polymers<\/h5>\n\n\n\n

DELO has worked\nclosely with Xaar to evaluate and develop this application using\nXaar\u2019s new 5-step process. It helps with initial fluid evaluation\nand guidance through to sample production and application\ndevelopment, enabling customers to evaluate the technology with\nconfidence. Continued support, technical advice and application\nimprovements also form part of the process. Optical\nmaterials based on UV-curing polymers instead of glass or\ninjection-moulded plastics<\/strong> have become\nincreasingly widespread in recent years. They are used as lenses for\napplications like flashlights, time-of-flight-sensors or diffractive\noptical elements (DOEs) for structured light emitters and miniature\ncameras. \n<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n
Material waste reduced<\/h5>\n\n\n\n

DELO provides fast\nUV curing materials with good optical properties such as a matched\nrefractive index, high transmission and non-yellowing. They are all\nsolvent-free and provide adjusted mechanical functions and stability\nas well as good adhesion and application on various substrates. The\nprecise placement of tiny droplets, a few picolitres in size, makes\ninkjet printing ideal for coating and protecting thin layers to\nachieve optical correction. It is a\nviable alternative to spin coating and other dispensing methods and\nhas significantly reduced material waste, saving up to 80%.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Most inkjet printheads are capable of jetting materials with viscosities with a range of 10-25 mPa\u00b7s (10-25 cP). Thanks to Xaar\u2019s TF Technology, DELO\u2019s advanced optical fluids which have significantly higher viscosities can now be successfully jetted. In this application, fluids with a viscosity of 250 mPa\u00b7s at room temperature are heated to 43\u00b0 C, …<\/p>\n","protected":false},"author":7,"featured_media":2719,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_seopublitec_title":"","_seopublitec_meta_desc":"","_seopublitec_keyphrases":"","_seopublitec_canonical":"","_seopublitec_noindex":false,"_seopublitec_nofollow":false,"_seopublitec_og_title":"","_seopublitec_og_desc":"","_seopublitec_og_image":"","_seopublitec_twitter_card":"","_seopublitec_cornerstone":false,"_seopublitec_score":""},"categories":[1],"tags":[114],"class_list":["post-2718","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-delo-en"],"openstation_lock":null,"openstation_contributors":[],"openstation_attached_media":[2719,2721,2720],"_links":{"self":[{"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/posts\/2718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/comments?post=2718"}],"version-history":[{"count":1,"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/posts\/2718\/revisions"}],"predecessor-version":[{"id":2722,"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/posts\/2718\/revisions\/2722"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/media\/2719"}],"wp:attachment":[{"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/media?parent=2718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/categories?post=2718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.publiteconline.it\/assemblaggio\/wp-json\/wp\/v2\/tags?post=2718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}