{"id":396,"date":"2025-04-23T03:09:50","date_gmt":"2025-04-23T03:09:50","guid":{"rendered":"https:\/\/www.coefficientfriction.com\/?page_id=396"},"modified":"2025-05-08T01:22:23","modified_gmt":"2025-05-08T01:22:23","slug":"coefficient-of-friction-of-paper","status":"publish","type":"page","link":"https:\/\/www.coefficientfriction.com\/el\/application\/coefficient-of-friction-of-paper","title":{"rendered":"\u03a7\u03b1\u03c1\u03c4\u03af"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"396\" class=\"elementor elementor-396\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e87c6b2 e-flex e-con-boxed e-con e-parent\" data-id=\"e87c6b2\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-60fbb6b e-con-full e-flex e-con e-child\" data-id=\"60fbb6b\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;none&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0e3633c elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"0e3633c\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;zoomIn&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">\u03a3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a73bac6 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"a73bac6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ISO 15359, TAPPI T549<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0364755 e-flex e-con-boxed e-con e-parent\" data-id=\"0364755\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f673fbc elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"f673fbc\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u039a\u03b1\u03c4\u03b1\u03bd\u03cc\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-156f03e elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"156f03e\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"441\" data-end=\"876\">\u03a3\u03c4\u03b9\u03c2 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b5\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2, \u03b5\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c7\u03b1\u03c1\u03c4\u03bf\u03bd\u03b9\u03bf\u03cd, \u03b7 <em data-start=\"500\" data-end=\"534\">\u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/em> \u03b4\u03b9\u03b1\u03b4\u03c1\u03b1\u03bc\u03b1\u03c4\u03af\u03b6\u03b5\u03b9 \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c1\u03cc\u03bb\u03bf \u03c3\u03c4\u03bf\u03bd \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7 \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd. \u0391\u03c5\u03c4\u03ae \u03b7 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf \u03bc\u03b5 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03c4\u03bf \u03c7\u03b1\u03c1\u03c4\u03af \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03ac \u03bc\u03b5 \u03ac\u03bb\u03bb\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b5\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1, \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac, \u03c4\u03b7 \u03c3\u03c4\u03bf\u03af\u03b2\u03b1\u03be\u03b7 \u03ae \u03c4\u03b7\u03bd \u03b1\u03bd\u03b1\u03b4\u03af\u03c0\u03bb\u03c9\u03c3\u03b7. \u0391\u03c0\u03cc \u03c4\u03b7\u03bd \u03bf\u03bc\u03b1\u03bb\u03ae \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1 \u03c3\u03c4\u03bf\u03c5\u03c2 \u03b5\u03ba\u03c4\u03c5\u03c0\u03c9\u03c4\u03ad\u03c2 \u03ad\u03c9\u03c2 \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03ae \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac, \u03b7 \u03b3\u03bd\u03ce\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03ae \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03c4\u03c9\u03bd \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd.<\/p><p class=\"\" data-start=\"878\" data-end=\"1222\">\u039f \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 (COF) \u03c0\u03bf\u03c3\u03bf\u03c4\u03b9\u03ba\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03b4\u03cd\u03bf \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03ce\u03bd \u03c3\u03b5 \u03b5\u03c0\u03b1\u03c6\u03ae - \u03c4\u03c5\u03c0\u03b9\u03ba\u03ac \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c4\u03cd\u03c0\u03bf:<br data-start=\"1009\" data-end=\"1012\" \/><strong data-start=\"1012\" data-end=\"1025\">\u03bc = f \u00f7 N<\/strong><br data-start=\"1025\" data-end=\"1028\" \/>\u03cc\u03c0\u03bf\u03c5 <em data-start=\"1034\" data-end=\"1037\">\u03bc<\/em> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2, <em data-start=\"1070\" data-end=\"1073\">f<\/em> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ba\u03b1\u03b9 <em data-start=\"1103\" data-end=\"1106\">N<\/em> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ae \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7. \u0393\u03b9\u03b1 \u03c5\u03bb\u03b9\u03ba\u03ac \u03b1\u03c0\u03cc \u03c7\u03b1\u03c1\u03c4\u03af \u03ba\u03b1\u03b9 \u03c7\u03b1\u03c1\u03c4\u03cc\u03bd\u03b9, \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf <strong data-start=\"1164\" data-end=\"1183\">\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae COF (\u03bcs)<\/strong> \u03ba\u03b1\u03b9 <strong data-start=\"1188\" data-end=\"1208\">\u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF (\u03bcd)<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b5\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-70bac52 e-flex e-con-boxed e-con e-parent\" data-id=\"70bac52\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-38e9bd9 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"38e9bd9\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u039c\u03ad\u03b8\u03bf\u03b4\u03bf\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03c7\u03b1\u03c1\u03c4\u03af \u03ba\u03b1\u03b9 \u03c7\u03b1\u03c1\u03c4\u03cc\u03bd\u03b9<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-271a789 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"271a789\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"1291\" data-end=\"1639\">\u0393\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd <em data-start=\"1307\" data-end=\"1341\">\u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c4\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/em>, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b9\u03b1\u03b8\u03ad\u03c3\u03b9\u03bc\u03b5\u03c2 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b5\u03c2 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03b9. \u039c\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03c0\u03b9\u03bf \u03b5\u03c5\u03c1\u03ad\u03c9\u03c2 \u03c5\u03b9\u03bf\u03b8\u03b5\u03c4\u03b7\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 <strong data-start=\"1412\" data-end=\"1439\">\u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5<\/strong>, \u03cc\u03c0\u03c9\u03c2 \u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc <strong data-start=\"1455\" data-end=\"1468\">ISO 15359<\/strong>, \u03ba\u03b1\u03b9 \u03b7 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03b1 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf TAPPI T815. \u0391\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b2\u03bf\u03b7\u03b8\u03bf\u03cd\u03bd \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03c3\u03bf\u03c5\u03bd \u03c3\u03c5\u03bd\u03b5\u03c0\u03ae \u03c3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac \u03c4\u03bf\u03c5 \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd \u03c3\u03b5 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03c4\u03af\u03b4\u03b5\u03c2 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1831d6d e-con-full e-flex e-con e-child\" data-id=\"1831d6d\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ae1b199 e-con-full e-flex elementor-invisible e-con e-child\" data-id=\"ae1b199\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeInLeft&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6a1268b elementor-widget elementor-widget-heading\" data-id=\"6a1268b\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u039c\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 (ISO 15359)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-61c6863 elementor-widget elementor-widget-text-editor\" data-id=\"61c6863\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"1682\" data-end=\"1988\">\u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5, \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03ac\u03c6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf <em data-start=\"1723\" data-end=\"1734\">ISO 15359<\/em>, \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b9\u03bf \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03b7\u03c2 <em data-start=\"1795\" data-end=\"1817\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c7\u03b1\u03c1\u03c4\u03cc\u03bd\u03b9 COF<\/em>. \u03a0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7 \u03b5\u03bd\u03cc\u03c2 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5 \u03b3\u03bd\u03c9\u03c3\u03c4\u03bf\u03cd \u03b2\u03ac\u03c1\u03bf\u03c5\u03c2 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03b4\u03bf\u03ba\u03af\u03bc\u03b9\u03bf \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03ad\u03bb\u03be\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b5 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c0\u03ac\u03bd\u03c9 \u03b1\u03c0\u03cc \u03bc\u03b9\u03b1 \u03bf\u03c1\u03b9\u03b6\u03cc\u03bd\u03c4\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc. \u0397 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03b1\u03c5\u03c4\u03ae \u03bc\u03b5\u03c4\u03c1\u03ac:<\/p><ul data-start=\"1990\" data-end=\"2149\"><li class=\"\" data-start=\"1990\" data-end=\"2063\"><p class=\"\" data-start=\"1992\" data-end=\"2063\"><strong data-start=\"1992\" data-end=\"2012\">\u03a3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ae COF (\u03bcs):<\/strong> \u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03ba\u03ba\u03af\u03bd\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5.<\/p><\/li><li class=\"\" data-start=\"2064\" data-end=\"2149\"><p class=\"\" data-start=\"2066\" data-end=\"2149\"><strong data-start=\"2066\" data-end=\"2087\">\u039a\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae COF (\u03bcd):<\/strong> \u0397 \u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c4\u03ae\u03c1\u03b7\u03c3\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5.<\/p><\/li><\/ul><p class=\"\" data-start=\"2151\" data-end=\"2321\">\u0397 \u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03b1\u03c5\u03c4\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b7 \u03b3\u03b9\u03b1 \u03bb\u03b5\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03bf\u03bc\u03bf\u03b9\u03cc\u03bc\u03bf\u03c1\u03c6\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b5\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03ba\u03b1\u03b9 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u03c3\u03b5 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2 \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03b1\u03be\u03b9\u03bf\u03c0\u03b9\u03c3\u03c4\u03af\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b7\u03c8\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b5\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1d3df9e e-con-full e-flex elementor-invisible e-con e-child\" data-id=\"1d3df9e\" data-element_type=\"container\" data-settings=\"{&quot;animation&quot;:&quot;fadeInRight&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6fedc77 elementor-widget elementor-widget-image\" data-id=\"6fedc77\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"200\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ISO-15359-coefficient-of-friction-of-paper.webp\" class=\"attachment-large size-large wp-image-401\" alt=\"ISO 15359 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ISO-15359-coefficient-of-friction-of-paper.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ISO-15359-coefficient-of-friction-of-paper-300x100.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/04\/ISO-15359-coefficient-of-friction-of-paper-18x6.webp 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-39a6935 elementor-widget elementor-widget-heading\" data-id=\"39a6935\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u0392\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03c0\u03b1\u03c1\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03b9 (\u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf ISO 15359):<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c4e9df6 elementor-widget elementor-widget-text-editor\" data-id=\"c4e9df6\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li class=\"\" data-start=\"2362\" data-end=\"2392\"><p class=\"\" data-start=\"2364\" data-end=\"2392\"><strong data-start=\"2364\" data-end=\"2380\">\u0392\u03ac\u03c1\u03bf\u03c2 \u03ad\u03bb\u03ba\u03b7\u03b8\u03c1\u03bf\u03c5:<\/strong> 200 \u00b1 1 g<\/p><\/li><li class=\"\" data-start=\"2393\" data-end=\"2423\"><p class=\"\" data-start=\"2395\" data-end=\"2423\"><strong data-start=\"2395\" data-end=\"2410\">\u03a4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2:<\/strong> 100 mm\/min<\/p><\/li><li class=\"\" data-start=\"2424\" data-end=\"2500\"><p class=\"\" data-start=\"2426\" data-end=\"2500\"><strong data-start=\"2426\" data-end=\"2450\">\u0394\u03b9\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2:<\/strong> \u03a3\u03c5\u03bd\u03b5\u03c0\u03ae\u03c2 \u03c3\u03b5 \u03cc\u03bb\u03b5\u03c2 \u03c4\u03b9\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03c3\u03c5\u03b3\u03ba\u03c1\u03b9\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1<\/p><\/li><li class=\"\" data-start=\"2501\" data-end=\"2564\"><p class=\"\" data-start=\"2503\" data-end=\"2564\"><strong data-start=\"2503\" data-end=\"2526\">\u03a3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c0\u03b5\u03c1\u03b9\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03bf\u03c2:<\/strong> \u0395\u03bb\u03b5\u03b3\u03c7\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c5\u03b3\u03c1\u03b1\u03c3\u03af\u03b1<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ad429b3 e-flex e-con-boxed e-con e-parent\" data-id=\"ad429b3\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-44e6528 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"44e6528\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0393\u03b9\u03b1\u03c4\u03af \u03bf \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 \u03ad\u03c7\u03b5\u03b9 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1 \u03c3\u03c4\u03b9\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9967cdc elementor-widget elementor-widget-text-editor\" data-id=\"9967cdc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"2634\" data-end=\"2767\">\u03a4\u03bf <em data-start=\"2638\" data-end=\"2668\">\u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2<\/em> \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03b1\u03c1\u03b1\u03af\u03c4\u03b7\u03c4\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03c0\u03c1\u03bf\u03c3\u03b4\u03b9\u03bf\u03c1\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c5 \u03bc\u03b5 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03c4\u03b1 \u03c6\u03cd\u03bb\u03bb\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd \u03c3\u03b5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7. \u03a3\u03ba\u03b5\u03c6\u03c4\u03b5\u03af\u03c4\u03b5 \u03b1\u03c5\u03c4\u03ac \u03c4\u03b1 \u03c3\u03b5\u03bd\u03ac\u03c1\u03b9\u03b1:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a786479 e-con-full e-flex e-con e-child\" data-id=\"a786479\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c1d69c7 e-con-full e-flex e-con e-child\" data-id=\"c1d69c7\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ab7af54 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"ab7af54\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u0395\u03ba\u03c4\u03cd\u03c0\u03c9\u03c3\u03b7<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26a0129 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"26a0129\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u03a7\u03b1\u03c1\u03c4\u03af \u03bc\u03b5 \u03c0\u03bf\u03bb\u03cd \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc COF \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b3\u03bb\u03b9\u03c3\u03c4\u03c1\u03ae\u03c3\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bc\u03b7\u03bd \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c4\u03b7\u03b8\u03b5\u03af \u03c3\u03c9\u03c3\u03c4\u03ac.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7b75e2d e-con-full e-flex e-con e-child\" data-id=\"7b75e2d\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-99cb688 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"99cb688\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u0394\u03af\u03c0\u03bb\u03c9\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03b3\u03ba\u03cc\u03bb\u03bb\u03b7\u03c3\u03b7<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16b485e elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"16b485e\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u03a4\u03bf \u03c5\u03c8\u03b7\u03bb\u03cc COF \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03b5\u03bc\u03c0\u03bb\u03bf\u03ba\u03ae \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c5\u03c4\u03bf\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b5\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-aad265c e-con-full e-flex e-con e-child\" data-id=\"aad265c\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1cebbd4 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"1cebbd4\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u03a3\u03c4\u03bf\u03af\u03b2\u03b1\u03be\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6f2d47 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"b6f2d47\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u039f\u03b9 \u03c4\u03b9\u03bc\u03ad\u03c2 COF \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03c5\u03bd \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c4\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c6\u03bf\u03c1\u03c4\u03af\u03bf\u03c5 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b8966a elementor-widget elementor-widget-text-editor\" data-id=\"8b8966a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"2996\" data-end=\"3144\">\u039f\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1\u03c2, \u03ba\u03c5\u03bc\u03b1\u03c4\u03bf\u03b5\u03b9\u03b4\u03ce\u03bd \u03ba\u03bf\u03c5\u03c4\u03b9\u03ce\u03bd \u03ae \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03bc\u03b5 \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5\u03bd \u03c4\u03b1\u03ba\u03c4\u03b9\u03ba\u03ac \u03b3\u03b9\u03b1 COF, \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03c0\u03bb\u03b7\u03c1\u03bf\u03cd\u03bd \u03c4\u03cc\u03c3\u03bf \u03c4\u03b9\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b1\u03c3\u03c6\u03b1\u03bb\u03b5\u03af\u03b1\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3703318 e-flex e-con-boxed e-con e-parent\" data-id=\"3703318\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9d80ed0 elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"9d80ed0\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u03a3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03bc\u03b5\u03bd\u03b1 \u03cc\u03c1\u03b3\u03b1\u03bd\u03b1 \u03b3\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9387db5 e-con-full e-flex e-con e-child\" data-id=\"9387db5\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e136a83 elementor-invisible elementor-widget elementor-widget-text-editor\" data-id=\"e136a83\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"\" data-start=\"3215\" data-end=\"3393\">\u0393\u03b9\u03b1 \u03b1\u03ba\u03c1\u03b9\u03b2\u03b5\u03af\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2, \u03b5\u03be\u03b5\u03b9\u03b4\u03b9\u03ba\u03b5\u03c5\u03bc\u03ad\u03bd\u03b1 \u03cc\u03c1\u03b3\u03b1\u03bd\u03b1 \u03cc\u03c0\u03c9\u03c2 \u03c4\u03bf <strong data-start=\"3283\" data-end=\"3324\">COF-01 \u0394\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 COF-01<\/strong> \u03b1\u03c0\u03cc <strong data-start=\"3328\" data-end=\"3348\">Cell Instruments<\/strong> \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ce\u03bd\u03c4\u03b1\u03b9 \u03b1\u03bd\u03b5\u03c0\u03b9\u03c6\u03cd\u03bb\u03b1\u03ba\u03c4\u03b1. \u0388\u03c7\u03b5\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03bc\u03b5:<\/p><ul data-start=\"3395\" data-end=\"3717\"><li class=\"\" data-start=\"3395\" data-end=\"3481\"><p class=\"\" data-start=\"3397\" data-end=\"3481\"><strong data-start=\"3397\" data-end=\"3433\">\u0388\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 PLC \u03ba\u03b1\u03b9 \u03bf\u03b8\u03cc\u03bd\u03b7 \u03b1\u03c6\u03ae\u03c2 HMI<\/strong>, \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ae \u03ba\u03b1\u03b9 \u03c6\u03b9\u03bb\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c7\u03c1\u03ae\u03c3\u03c4\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1<\/p><\/li><li class=\"\" data-start=\"3482\" data-end=\"3558\"><p class=\"\" data-start=\"3484\" data-end=\"3558\"><strong data-start=\"3484\" data-end=\"3505\">\u0394\u03bf\u03ba\u03b9\u03bc\u03ae \u03b4\u03b9\u03c0\u03bb\u03ae\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2<\/strong>, \u03b9\u03ba\u03b1\u03bd\u03cc \u03bd\u03b1 \u03bc\u03b5\u03c4\u03c1\u03ac \u03c4\u03cc\u03c3\u03bf \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03ba\u03b9\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 COF<\/p><\/li><li class=\"\" data-start=\"3559\" data-end=\"3634\"><p class=\"\" data-start=\"3561\" data-end=\"3634\"><strong data-start=\"3561\" data-end=\"3608\">\u039a\u03b1\u03bc\u03c0\u03cd\u03bb\u03b5\u03c2 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03c8\u03b7\u03c6\u03b9\u03b1\u03ba\u03ae \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03c9\u03bd<\/strong>, \u03b5\u03bd\u03af\u03c3\u03c7\u03c5\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b9\u03c7\u03bd\u03b7\u03bb\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/p><\/li><li class=\"\" data-start=\"3635\" data-end=\"3717\"><p class=\"\" data-start=\"3637\" data-end=\"3717\"><strong data-start=\"3637\" data-end=\"3666\">\u03a3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7 \u03bc\u03b5 <a href=\"https:\/\/www.coefficientfriction.com\/el\/iso-15359\/\" target=\"_blank\" rel=\"noopener\">ISO 15359<\/a><\/strong>, \u03ba\u03b1\u03b8\u03b9\u03c3\u03c4\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03b9\u03b4\u03b1\u03bd\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03b1\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c3\u03c6\u03ac\u03bb\u03b9\u03c3\u03b7 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/p><\/li><\/ul><p class=\"\" data-start=\"3719\" data-end=\"4050\">\u0393\u03b9\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 <em data-start=\"3753\" data-end=\"3777\">\u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae\u03c2 \u03bf\u03bb\u03af\u03c3\u03b8\u03b7\u03c3\u03b7\u03c2 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd<\/em> \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5, \u03c4\u03bf <strong data-start=\"3814\" data-end=\"3845\">COF-03 \u0394\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ae\u03c2 \u03ba\u03b5\u03ba\u03bb\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5<\/strong> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03b5\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03ae \u03b5\u03bd\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03bb\u03cd\u03c3\u03b7. \u0395\u03af\u03bd\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03be\u03b9\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae\u03c2 \u03b3\u03c9\u03bd\u03af\u03b1\u03c2 \u03c3\u03c4\u03b7\u03bd \u03bf\u03c0\u03bf\u03af\u03b1 \u03ad\u03bd\u03b1 \u03b4\u03b5\u03af\u03b3\u03bc\u03b1 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd \u03b1\u03c1\u03c7\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03bf\u03bb\u03b9\u03c3\u03b8\u03b1\u03af\u03bd\u03b5\u03b9 - \u03bc\u03b5\u03c4\u03c1\u03ce\u03bd\u03c4\u03b1\u03c2 \u03bc\u03cc\u03bd\u03bf \u03c4\u03bf\u03bd \u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03cc \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03b1\u03bb\u03bb\u03ac \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b5\u03c2 \u03c3\u03c5\u03b3\u03ba\u03c1\u03b9\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03bb\u03b7\u03c1\u03bf\u03c6\u03bf\u03c1\u03af\u03b5\u03c2.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ffa7f71 elementor-invisible elementor-widget elementor-widget-image\" data-id=\"ffa7f71\" data-element_type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.coefficientfriction.com\/el\/coefficient-of-friction-testing-equipment\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-03.webp\" class=\"attachment-large size-large wp-image-98\" alt=\"\u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 03\" srcset=\"https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-03.webp 600w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-03-300x300.webp 300w, https:\/\/www.coefficientfriction.com\/wp-content\/uploads\/2025\/03\/coefficient-of-friction-testing-equipment-03-150x150.webp 150w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">COF-01 \u0394\u03bf\u03ba\u03b9\u03bc\u03b1\u03c3\u03c4\u03ae\u03c2 \u03c3\u03c5\u03bd\u03c4\u03b5\u03bb\u03b5\u03c3\u03c4\u03ae \u03c4\u03c1\u03b9\u03b2\u03ae\u03c2 COF-01<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Coefficient of Friction of Paper ISO 15359, TAPPI T549 Understanding the Coefficient of Friction of Plastic Film In the packaging, printing, and paperboard industries, the coefficient of friction of paper plays a pivotal role in quality control and material handling. This property determines how paper interacts with other surfaces during processing, conveying, stacking, or folding. [&hellip;]<\/p>","protected":false},"author":2,"featured_media":0,"parent":52,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-396","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages\/396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/comments?post=396"}],"version-history":[{"count":6,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages\/396\/revisions"}],"predecessor-version":[{"id":711,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages\/396\/revisions\/711"}],"up":[{"embeddable":true,"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/pages\/52"}],"wp:attachment":[{"href":"https:\/\/www.coefficientfriction.com\/el\/wp-json\/wp\/v2\/media?parent=396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}