{"id":6743,"date":"2020-01-20T12:48:48","date_gmt":"2020-01-20T11:48:48","guid":{"rendered":"https:\/\/arcotest.info\/determination-of-the-surface-tension\/"},"modified":"2025-01-18T13:01:43","modified_gmt":"2025-01-18T12:01:43","slug":"determination-of-the-surface-tension","status":"publish","type":"page","link":"https:\/\/arcotest.info\/en\/determination-of-the-surface-tension\/","title":{"rendered":"Determination of the surface tension"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-5d3e52e\" data-block-id=\"5d3e52e\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-5d3e52e-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1b9357e\" data-v=\"4\" data-block-id=\"1b9357e\"><style>.stk-1b9357e {margin-top:20px !important;margin-left:30px !important;}@media screen and (max-width:689px){.stk-1b9357e {margin-left:10px !important;}}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1b9357e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1b9357e-inner-blocks\"><style>@media only screen and (max-width: 600px) {.gb-69d7b62339bf4{font-size: 30px!important;}}<\/style>\n<h2 class=\"gb-69d7b62339bf4 wp-block-heading\" id=\"h-bestimmung-der-oberflachenspannung\">Determination of the surface tension<\/h2>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-75f564c\" data-block-id=\"75f564c\"><style>.stk-75f564c-column{--stk-columns-spacing:37px !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-75f564c-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-43d9889\" data-v=\"4\" data-block-id=\"43d9889\"><style>.stk-43d9889 {align-self:center !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-43d9889-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-43d9889-inner-blocks\">\n<p>Test inks can be used to determine the surface tension of solids<br\/>made of plastics \u2013 metals \u2013 glass \u2013 ceramics. The adhesion possibility of the surfaces<br\/>in particular for printing, bonding and painting should also be determined based<br\/>on the wetting pattern.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">The surface tension is determined by applying a stroke of ink measuring just a few centimetres in length to the surfaces to be evaluated and observing the behaviour of the stroke of ink.<\/h5>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-43a084d\" data-v=\"4\" data-block-id=\"43a084d\"><style>.stk-43a084d {align-self:flex-end !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-43a084d-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-43a084d-inner-blocks\">\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"953\" src=\"https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line.webp\" alt=\"\" class=\"wp-image-86813\" style=\"width:343px;height:363px\" srcset=\"https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line.webp 900w, https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line-283x300.webp 283w, https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line-142x150.webp 142w, https:\/\/arcotest.info\/wp-content\/uploads\/2024\/02\/test-line-768x813.webp 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-64a0c48\" data-block-id=\"64a0c48\"><style>.stk-64a0c48 {margin-bottom:111px !important;}.stk-64a0c48-column{--stk-columns-spacing:0px !important;--stk-column-gap:24px !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-64a0c48-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-5dd98a9\" data-v=\"4\" data-block-id=\"5dd98a9\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-5dd98a9-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-5dd98a9-inner-blocks\">\n<p class=\"has-palette-color-6-background-color has-background\">If the line contracts within 2 or 4 seconds &#8211; depending on the ink specification &#8211; the surface tension of the test area is lower than that of the test ink.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f28010a\" data-v=\"4\" data-block-id=\"f28010a\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f28010a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f28010a-inner-blocks\">\n<p class=\"has-palette-color-6-background-color has-background\">Conversely, if the stroke spreads, this would show that the surface tension of the applied ink is lower than that of the surface.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-2b7ccf7\" data-v=\"4\" data-block-id=\"2b7ccf7\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-2b7ccf7-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-2b7ccf7-inner-blocks\">\n<p class=\"has-palette-color-6-background-color has-background\">If the stroke remains unchanged during the observation period, the value of the surface tension has been reached exactly or is slightly higher.<\/p>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-1e29d1b\" data-block-id=\"1e29d1b\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-1e29d1b-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-4a5598a\" data-v=\"4\" data-block-id=\"4a5598a\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4a5598a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4a5598a-inner-blocks\">\n<h3 class=\"wp-block-heading\">Testing of a plastic surface with PINK 38 Jumbo<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d1dfda3\" data-v=\"4\" data-block-id=\"d1dfda3\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d1dfda3-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d1dfda3-inner-blocks\">\n<p>In this application example, the <strong>PINK 38 Jumbo<\/strong> test pen is used to check the surface tension on black PE plastic.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-422046b\" data-v=\"4\" data-block-id=\"422046b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-422046b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-422046b-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9SbFR5ZEpvaGdpWSIgZnJhbWVib3JkZXI9IjAiIGFsbG93PSJhY2NlbGVyb21ldGVyOyBhdXRvcGxheTsgY2xpcGJvYXJkLXdyaXRlOyBlbmNyeXB0ZWQtbWVkaWE7IHBpY3R1cmUtaW4tcGljdHVyZSIgYWxsb3dmdWxsc2NyZWVuPSIiPjwvaWZyYW1lPg==\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-we4qfru\" data-block-id=\"we4qfru\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-we4qfru-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-a8gyvlt\" data-v=\"4\" data-block-id=\"a8gyvlt\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a8gyvlt-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a8gyvlt-inner-blocks\">\n<h3 class=\"wp-block-heading\">Testing of a metal surface with PINK 10 ml<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-v6iygfd\" data-v=\"4\" data-block-id=\"v6iygfd\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-v6iygfd-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-v6iygfd-inner-blocks\">\n<p>In this application example, is tested with test ink PINK from 10 ml bottles with cotton swabs. Take a new cotton swab after each use.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-tkpf730\" data-v=\"4\" data-block-id=\"tkpf730\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-tkpf730-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-tkpf730-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9PNjhZSjFxNExJMCIgZnJhbWVib3JkZXI9IjAiIGFsbG93PSJhY2NlbGVyb21ldGVyOyBhdXRvcGxheTsgY2xpcGJvYXJkLXdyaXRlOyBlbmNyeXB0ZWQtbWVkaWE7IGd5cm9zY29wZTsgcGljdHVyZS1pbi1waWN0dXJlIiBhbGxvd2Z1bGxzY3JlZW49IiI+PC9pZnJhbWU+\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-o3jsnzk\" data-block-id=\"o3jsnzk\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-o3jsnzk-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-l9paafw\" data-v=\"4\" data-block-id=\"l9paafw\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-l9paafw-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-l9paafw-inner-blocks\">\n<h3 class=\"wp-block-heading\">Check metal surfaces for cleanliness.<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-dkfc2my\" data-v=\"4\" data-block-id=\"dkfc2my\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-dkfc2my-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-dkfc2my-inner-blocks\">\n<p>In this application example, is tested with test ink PINK from 10 ml bottles with cotton swabs. Take a new cotton swab after each use.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d66hrwp\" data-v=\"4\" data-block-id=\"d66hrwp\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d66hrwp-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d66hrwp-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9TNE1JYzhRaUY5SSIgdGl0bGU9IllvdVR1YmUgdmlkZW8gcGxheWVyIiBmcmFtZWJvcmRlcj0iMCIgYWxsb3c9ImFjY2VsZXJvbWV0ZXI7IGF1dG9wbGF5OyBjbGlwYm9hcmQtd3JpdGU7IGVuY3J5cHRlZC1tZWRpYTsgZ3lyb3Njb3BlOyBwaWN0dXJlLWluLXBpY3R1cmUiIGFsbG93ZnVsbHNjcmVlbj0iIj48L2lmcmFtZT4=\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-8573796\" data-block-id=\"8573796\"><style>.stk-8573796 {margin-bottom:50px !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-8573796-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-211df4f\" data-v=\"4\" data-block-id=\"211df4f\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-211df4f-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-211df4f-inner-blocks\">\n<h3 class=\"wp-block-heading\">Testing of a polyolefin film for 38mN\/m<\/h3>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-3c685b1\" data-v=\"4\" data-block-id=\"3c685b1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-3c685b1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-3c685b1-inner-blocks\">\n<p>RAPIDTEST 38\u00ae serves to check if the treatment of polyolefins (polypropylene, polyethylene, polybutylene) has shown an effect onto the material. A stroke of the pen leaves a full line on thematerial if thematerial&#8217;s surface tension has a value of 38mN\/m or more. The fluid applied to the surface will dry within seconds, it does not need to be wiped off anymore.<\/p>\n<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-f460536\" data-v=\"4\" data-block-id=\"f460536\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-f460536-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-f460536-inner-blocks\">\n <div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"default\" data-borlabs-cookie-content=\"PGlmcmFtZSB3aWR0aD0iNTYwIiBoZWlnaHQ9IjMxNSIgc3JjPSJodHRwczovL3d3dy55b3V0dWJlLW5vY29va2llLmNvbS9lbWJlZC9qd3RQNjRlNXIwYyIgdGl0bGU9IllvdVR1YmUgdmlkZW8gcGxheWVyIiBmcmFtZWJvcmRlcj0iMCIgYWxsb3c9ImFjY2VsZXJvbWV0ZXI7IGF1dG9wbGF5OyBjbGlwYm9hcmQtd3JpdGU7IGVuY3J5cHRlZC1tZWRpYTsgZ3lyb3Njb3BlOyBwaWN0dXJlLWluLXBpY3R1cmUiIGFsbG93ZnVsbHNjcmVlbj0iIj48L2lmcmFtZT4=\"><div class=\"brlbs-cmpnt-cb-preset-a\"> <p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>Default<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p> <div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: none\">Accept required service and unblock content<\/a> <\/div> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n<style>@media only screen and (max-width: 600px) {.gb-69d7b6234ab64{font-size: 30px!important;}}<\/style>\n<h2 class=\"gb-69d7b6234ab64 wp-block-heading\" id=\"h-sauberkeit-von-werkstoffen\">Cleanliness of materials<\/h2>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<h5 class=\"wp-block-heading\" id=\"h-die-begriffe-sauberkeit-und-reinheit-von-werkstoffen-bedurfen-einer-naheren-definition-da-die-werkstoffe-ob-als-formteile-oder-folien-in-ihrer-oberflache-vorliegen-kann-hier-der-begriff-sauberkeit-angebracht-sein-da-reinheit-von-werkstoffen-sich-auf-den-aufbau-also-auch-das-innere-gefuge-eines-gesamtkorpers-beziehen-kann\">The terms cleanliness and purity of materials need to be defined in more detail. As the materials, whether as moulded parts or film, are present in their surface, the term cleanliness may be appropriate here because purity of materials may refer to their structure, i.e. including the internal framework of an aggregate object. <\/h5>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-43dbd94 is-style-default\" data-block-id=\"43dbd94\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-fe2a36e stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"fe2a36e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-fe2a36e-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-fe2a36e-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-a812bd7 stk-block-background\" data-block-id=\"a812bd7\"><style>.stk-a812bd7 {background-color:#d7dadd !important;}.stk-a812bd7:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-2a90297\" id=\"verschmutzungen-von-werkstoffen\" data-block-id=\"2a90297\"><style>@media screen and (max-width:689px){.stk-2a90297 .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Pollution of materials<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-6de89ff\" data-block-id=\"6de89ff\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-6de89ff\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-6-de-89-ff-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-6-de-89-ff-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-7482be1 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"7482be1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-7482be1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-7482be1-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Contaminations of materials may have multiple causes and may present themselves in various ways. You need to consider particle contaminations as well as film-type contaminations. Particle contamination may be present as individual irregular or intermittent dots. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Film-type contamination may, however, completely or partially cover surfaces. These may, if clean, also be described as pure, which would have to be subject to a relevant definition, e.g. of the surface tension \/ surface energy.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>These definitions cannot refer to the internal framework of a workpiece, which, if anything, can only be described by purity. As it is the surfaces that will be further processed, we must also define the cleanliness states; this is generally possible using the term surface tension.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-ac0db32 is-style-default\" data-block-id=\"ac0db32\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e70179d stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"e70179d\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e70179d-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-e70179d-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-721468e stk-block-background\" data-block-id=\"721468e\"><style>.stk-721468e {background-color:#d7dadd !important;}.stk-721468e:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-905a7de\" id=\"zweierlei-prufungsverfahren-erganzen-sich\" data-block-id=\"905a7de\"><style>@media screen and (max-width:689px){.stk-905a7de .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Two types of testing procedures complement each other<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-c4397b7\" data-block-id=\"c4397b7\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-c4397b7\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-c-4397-b-7-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-c-4397-b-7-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-56eecd1 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"56eecd1\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-56eecd1-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-56eecd1-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Processing may be printing, painting or gluing. The procedures used are simple solutions such as to test surfaces using test inks and measure contact angles. The first procedure is straightforward and therefore hands-on because ink can be easily applied to testing surfaces during production processes. The latter procedure requires a machine capable of displaying the surface tension components as polar and dispersive ones.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The test ink procedure only shows the sum of both values, which is mostly sufficient for assessing surfaces. Neither procedure is contactless or continuously applicable. The latter means that for manufacturing processes, in particular those using film, measurements can only be performed when systems are idle, i.e. webs are not moving.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>In exceptional cases, a measurement may even require a very slow speed. The terms cleanliness and purity can be used optionally, but cleanliness can only be applied to surfaces. Try not to mix the terms to avoid confusion.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-3d0ad49 is-style-default\" data-block-id=\"3d0ad49\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9a8e4e2 stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"9a8e4e2\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9a8e4e2-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-9a8e4e2-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-fa6365b stk-block-background\" data-block-id=\"fa6365b\"><style>.stk-fa6365b {background-color:#d7dadd !important;}.stk-fa6365b:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-c6dd6be\" id=\"vorbehandlung-mit-erhohter-oberflachenspannung\" data-block-id=\"c6dd6be\"><style>@media screen and (max-width:689px){.stk-c6dd6be .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Pre-treatment at increased surface tension<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-58e0d69\" data-block-id=\"58e0d69\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-58e0d69\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-58-e-0-d-69-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-58-e-0-d-69-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-635498e stk-block-accordion__content\" data-v=\"4\" data-block-id=\"635498e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-635498e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-635498e-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The term pre-treatment refers to cleaning surfaces using mechanical means, most commonly washing with or without a solvent. For a few decades, pre-treatment has also included physical treatment using corona, plasma and flames, where electrical influence modifies the surfaces, boosts their polar ratio, increases surface tension and significantly improves adhesion.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>For example, plastics from polyolefins, whose natural surface tension values are 30mN\/m, can be relatively easily increased to values exceeding 45mN\/m, delivering very good adhesive values for printing, gluing and painting. There is no way you can achieve these values using traditional cleaning procedures, but we can see that mechanical pre-cleaning is required in most cases to enable viable pre-treatment using physical procedures.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>This is especially true for metal surfaces contaminated with, e.g. oils used for manufacturing film or moulded parts.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n\n<div style=\"height:57px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h2 class=\"wp-block-heading\" style=\"font-size:clamp(18.959px, 1.185rem + ((1vw - 3.2px) * 0.863), 30px);\">Test inks for efficient adhesion testing<\/h2>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<h5 class=\"wp-block-heading\">Test inks are used to record the surface tension of solids, which can be flat or molded.\nSurface tension is tested using inks whose image can be read within a few seconds of being applied to the surfaces. <\/h5>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n<details class=\"wp-block-stackable-accordion stk-block-accordion stk-inner-blocks stk-block-content stk-block stk-0bd5d61 is-style-default\" data-block-id=\"0bd5d61\">\n<summary class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-b8094ad stk--container-small stk-block-accordion__heading\" data-v=\"4\" data-block-id=\"b8094ad\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-b8094ad-container stk-hover-parent\"><div class=\"stk-block-content stk-inner-blocks stk-b8094ad-inner-blocks\">\n<div class=\"wp-block-stackable-icon-label stk-block-icon-label stk-block stk-2a7d77b stk-block-background\" data-block-id=\"2a7d77b\"><style>.stk-2a7d77b {background-color:#d7dadd !important;}.stk-2a7d77b:before{background-color:#d7dadd !important;}<\/style><div class=\"stk-row stk-inner-blocks stk-block-content\">\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-433eea0\" id=\"effiziente-haftfestigkeitsprufung\" data-block-id=\"433eea0\"><style>@media screen and (max-width:689px){.stk-433eea0 .stk-block-heading__text{font-size:20px !important;}}<\/style><h4 class=\"stk-block-heading__text stk-block-heading--use-theme-margins\">Efficient adhesion test<\/h4><\/div>\n\n\n\n<div class=\"wp-block-stackable-icon stk-block-icon stk-block stk-2fcb6e7\" data-block-id=\"2fcb6e7\"><span class=\"stk--svg-wrapper\"><div class=\"stk--inner-svg\"><svg style=\"height:0;width:0\"><defs><lineargradient id=\"linear-gradient-2fcb6e7\" x1=\"0\" x2=\"100%\" y1=\"0\" y2=\"0\"><stop offset=\"0%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-2-fcb-6-e-7-color-1)\"><\/stop><stop offset=\"100%\" style=\"stop-opacity:1;stop-color:var(--linear-gradient-2-fcb-6-e-7-color-2)\"><\/stop><\/lineargradient><\/defs><\/svg><svg data-prefix=\"fas\" data-icon=\"chevron-down\" class=\"svg-inline--fa fa-chevron-down fa-w-14\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 448 512\" aria-hidden=\"true\" width=\"32\" height=\"32\"><path fill=\"currentColor\" d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div><\/span><\/div>\n<\/div><\/div>\n<\/div><\/div><\/summary>\n\n\n\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1ab7d02 stk-block-accordion__content\" data-v=\"4\" data-block-id=\"1ab7d02\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1ab7d02-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1ab7d02-inner-blocks\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The test ink test produces an image that appears as the wettability of the surface. This can be used as an indicator for the adhesive strength of coatings. It can also be used to test the cleanliness of surfaces.<br\/>If the ink contracts within the observation time, e.g. 2 seconds, and forms individual dots, the surface tension of the object is below that of the test ink.<br\/>If the ink remains as applied or begins to flow apart, the surface tension is at or above that of the test ink.<br\/>The value of the test ink to be used is determined on the basis of experience. As a guide value for the surface tension, which enables adhesion, 38 mN\/m can be assumed. This guide value may be correct for 2-component systems as an application medium, for water-based coatings higher guide values, e.g. 48 mN\/m, must certainly be used.<br\/>Test inks can be produced in a wide range, such as 18 mN\/m to 105 mN\/m. However, it has been shown that the range from 30 mN\/m to around 70 mN\/m is very suitable for testing. The inks are available as markers or in bottles for application to surfaces with brushes or cotton buds or from spray bottles for larger areas.<br\/>Translated with DeepL.com (free version)      <br\/><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Purpose-orientated ink composition<br\/><br\/>Purpose-orientated ink composition<br\/>The inks are prepared in different compositions, depending on the intended use.<br\/>Inks according to DIN 53364 or ISO 8296 have been used for more than 50 years. They contain small quantities of components that are currently classified as toxic, but are harmless when used properly.<br\/>In the meantime, non-toxic inks have been produced, but these must be labelled as harmful to health. The latest developments offer label-free inks. The inks must be cleaned off the surfaces after measurement.<br\/>Special inks, which dry in seconds after application, can be left on or must be wiped off with solvent. They are mainly used in the film sector to determine the pre-treated side. These inks can also be used for archiving in quality assurance.<br\/>quality assurance.<br\/>The usability of the inks depends on their use. They can become inaccurate or unusable due to the entry of substances from contaminated surfaces.<br\/>Unopened inks can be stored for many months and then still be used. As the inks usually contain solvents, sensitive surfaces should be checked for this. In principle, all solids such as metal, plastic, glass and ceramics can be tested. The inks can be returned for disposal if they are no longer used.         <br\/><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>.\n.\n.\n.   <\/p>\n<\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>Determination of the surface tension Test inks can be used to determine the surface tension of solidsmade of plastics \u2013 metals \u2013 glass \u2013 ceramics. The adhesion possibility of the surfacesin particular for printing, bonding and painting should also be determined basedon the wetting pattern. The surface tension is determined by applying a stroke of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6743","page","type-page","status-publish","hentry"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"featured_image_src":null,"featured_image_src_square":null,"_links":{"self":[{"href":"https:\/\/arcotest.info\/en\/wp-json\/wp\/v2\/pages\/6743","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arcotest.info\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/arcotest.info\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/arcotest.info\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arcotest.info\/en\/wp-json\/wp\/v2\/comments?post=6743"}],"version-history":[{"count":0,"href":"https:\/\/arcotest.info\/en\/wp-json\/wp\/v2\/pages\/6743\/revisions"}],"wp:attachment":[{"href":"https:\/\/arcotest.info\/en\/wp-json\/wp\/v2\/media?parent=6743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}