{"id":1854,"date":"2026-07-23T06:02:51","date_gmt":"2026-07-23T10:02:51","guid":{"rendered":"https:\/\/slecotech.com\/?p=1854"},"modified":"2026-07-26T22:14:43","modified_gmt":"2026-07-27T02:14:43","slug":"hot-washing-vs-cold-washing-pet-recycling","status":"publish","type":"post","link":"https:\/\/slecotech.com\/de\/hot-washing-vs-cold-washing-pet-recycling\/","title":{"rendered":"Hei\u00dfwaschen vs. Kaltwaschen beim PET-Recycling \u2013 Was ist der Unterschied?"},"content":{"rendered":"[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; min_height=&#8221;445.4px&#8221; custom_margin=&#8221;-1px|||||&#8221; custom_padding=&#8221;||0px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;461.8px&#8221; custom_margin=&#8221;-15px|auto|2px|auto||&#8221; custom_padding=&#8221;2px|12px|5px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; text_font=&#8221;Poppins|500|||||||&#8221; text_font_size=&#8221;17px&#8221; text_line_height=&#8221;1.9em&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;263.9px&#8221; custom_margin=&#8221;-3px||-21px|||&#8221; custom_padding=&#8221;0px||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<p>Hei\u00dfwaschen und Kaltwaschen sind zwei unterschiedliche Reinigungsverfahren, die beim Recycling von PET-Flaschen zum Einsatz kommen. Beim Kaltwaschen werden vor allem lose Verunreinigungen wie Staub, Schmutz und wasserl\u00f6sliche R\u00fcckst\u00e4nde durch mechanische Reibung und Sp\u00fclen entfernt. Beim Hei\u00dfwaschen werden erhitztes Wasser, alkalische Chemikalien und eine kontrollierte Verweildauer eingesetzt, um hartn\u00e4ckigere Verunreinigungen wie Klebstoffe, \u00d6le, organische R\u00fcckst\u00e4nde und Etiketten zu entfernen. F\u00fcr hochwertige PET-Flocken, die im \u201eBottle-to-Bottle\u201c-Recycling verwendet werden, wird im Allgemeinen das Hei\u00dfwaschen bevorzugt, da es einen h\u00f6heren Reinheitsgrad und geringere Verunreinigungswerte erzielt.<\/p>\n<strong><b><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1088\" src=\"https:\/\/slecotech.com\/wp-content\/uploads\/2026\/07\/Technical-Specifications-Comparison-Chart.jpg\" alt=\"Vergleichstabelle f\u00fcr PET-Flaschenwasch- und -Recyclinganlagen\" class=\"size-medium aligncenter\" \/>\u00a0<\/b><\/strong>\n\n<h2><strong><b>Was versteht man unter \u201eHei\u00dfw\u00e4sche\u201c und \u201eKaltw\u00e4sche\u201c beim PET-Recycling?<\/b><\/strong><\/h2>\n<p>PET-Flaschenwaschanlagen nutzen verschiedene Reinigungsstufen, um gebrauchte PET-Flaschen in saubere PET-Recyclingflocken umzuwandeln. Der Waschprozess hat direkten Einfluss auf die Qualit\u00e4t, Reinheit und die endg\u00fcltige Verwendung der PET-Recyclingmaterialien.<\/p>\n<ol><\/ol>\n<p><!-- \/divi:paragraph --><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;2_5,3_5&#8243; _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;325.1px&#8221; custom_margin=&#8221;13px|auto|-13px|auto||&#8221; custom_padding=&#8221;84px|0px|0px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_image src=&#8221;https:\/\/slecotech.com\/wp-content\/uploads\/2026\/07\/Hot-vs-Cold-Washing-Comparison-Vertical.jpg&#8221; title_text=&#8221;Single-Shaft Crusher (1)&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;93.6%&#8221; min_height=&#8221;248px&#8221; custom_margin=&#8221;-83px|6px|2px|9px||&#8221; custom_padding=&#8221;5px|3px|0px|2px||&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; text_font=&#8221;Poppins|500|||||||&#8221; text_font_size=&#8221;17px&#8221; text_line_height=&#8221;1.9em&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; width=&#8221;100%&#8221; min_height=&#8221;184.7px&#8221; custom_margin=&#8221;-92px|-313px|-2px|-21px||&#8221; custom_padding=&#8221;0px|0px|0px|0px||&#8221; global_colors_info=&#8221;{}&#8221;]<p>Das Kaltwaschen ist ein mechanisches Reinigungsverfahren, bei dem Wasser mit normaler Temperatur, Reibwaschvorrichtungen und Sp\u00fclsysteme zum Einsatz kommen, um Oberfl\u00e4chenverunreinigungen zu entfernen.<\/p>\n<p>Das Hei\u00dfwaschen ist ein fortschrittliches Reinigungsverfahren, bei dem durch erh\u00f6hte Wassertemperaturen, alkalische L\u00f6sungen und mechanische Durchmischung hartn\u00e4ckige Verunreinigungen aus PET-Flocken entfernt werden.<\/p>\n<p>Eine typische PET-Flaschenwaschanlage von Streamline Eco Tech kann folgende Komponenten integrieren:<\/p>\n<ul>\n<li>Flaschensortieranlage<\/li>\n<li>Etikettenentferner<\/li>\n<li>Brecher<\/li>\n<li>Reibungsscheibe<\/li>\n<li>Tank zur Trennung von Schwimmsubstanzen und Sinkstoffen<\/li>\n<li>Hei\u00dfwaschbeh\u00e4lter<\/li>\n<li>Sp\u00fclsystem<\/li>\n<li>Entw\u00e4sserungsmaschine<\/li>\n<li>Thermisches Trocknungssystem<\/li>\n<\/ul>\n<ol><\/ol>\n<p><!-- \/divi:paragraph --><\/p>\n<p><!-- \/divi:paragraph --><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;131.8px&#8221; custom_margin=&#8221;-15px|auto|2px|auto||&#8221; custom_padding=&#8221;2px|12px|5px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; text_font=&#8221;Poppins|500|||||||&#8221; text_font_size=&#8221;17px&#8221; text_line_height=&#8221;1.9em&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; width=&#8221;96.6%&#8221; min_height=&#8221;63.9px&#8221; custom_margin=&#8221;-36px||-1px|||&#8221; custom_padding=&#8221;0px||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<p>Bei der Hei\u00dfw\u00e4sche werden in der Regel Temperaturen von 60\u201380 \u00b0C verwendet und alkalische Reinigungsmittel eingesetzt, um \u00d6l, Klebstoffr\u00fcckst\u00e4nde und organische Verunreinigungen von PET-Flocken zu entfernen. Die Kaltw\u00e4sche erfolgt bei Raumtemperatur und wird haupts\u00e4chlich zur Oberfl\u00e4chenreinigung sowie bei Anwendungen mit geringer Verunreinigung eingesetzt.<\/p>\n<ol><\/ol>\n<p><!-- \/divi:paragraph --><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;461.8px&#8221; custom_margin=&#8221;-15px|auto|2px|auto||&#8221; custom_padding=&#8221;2px|12px|5px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; text_font=&#8221;Poppins|500|||||||&#8221; text_font_size=&#8221;17px&#8221; text_line_height=&#8221;1.9em&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;263.9px&#8221; custom_margin=&#8221;-3px||-21px|||&#8221; custom_padding=&#8221;0px||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<h2><strong><b>Wie funktioniert das Hei\u00dfwaschen?<\/b><\/strong><\/h2>\n<h2><strong><b>Funktionsprinzip<\/b><\/strong><\/h2>\n<p>Das Hei\u00dfwaschen verbessert die Sauberkeit von PET-Flocken durch eine Kombination aus thermischer Energie, chemischer Einwirkung und mechanischer Reibung.<\/p>\n<p>Der typische Hei\u00dfwaschprozess umfasst:<\/p>\n<ol>\n<li><span><\/span>Die zerkleinerten PET-Flocken gelangen in den Hei\u00dfwaschbeh\u00e4lter.<\/li>\n<li><span><\/span>Erhitztes Wasser l\u00f6st Klebstoffe und organische Verunreinigungen.<\/li>\n<li><span><\/span>Alkalische Reinigungsmittel helfen dabei, \u00d6l, Klebstoff und R\u00fcckst\u00e4nde zu entfernen.<\/li>\n<li><span><\/span>Durch mechanisches R\u00fchren werden Verunreinigungen von den PET-Oberfl\u00e4chen entfernt.<\/li>\n<li><span><\/span>Die sauberen Flocken werden zur Sp\u00fcl- und Trocknungsphase weitergeleitet.<\/li>\n<\/ol>\n<h2><strong><b>\u00a0<\/b><\/strong><\/h2>\n<h2><strong><b>Typische Parameter f\u00fcr die Hei\u00dfw\u00e4sche<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong><b>Parameter<\/b><\/strong><\/td>\n<td><strong><b>Typischer Bereich<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td>Wassertemperatur<\/td>\n<td>60\u201380 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Waschzeit<\/td>\n<td>15 Minuten<\/td>\n<\/tr>\n<tr>\n<td>Konzentration von Natronlauge (NaOH)<\/td>\n<td>1\u20132%<\/td>\n<\/tr>\n<tr>\n<td>Materialart<\/td>\n<td>PET-Flocken<\/td>\n<\/tr>\n<tr>\n<td>Wichtigste entfernte Schadstoffe<\/td>\n<td>Kleber, \u00d6l, Etiketten, organische R\u00fcckst\u00e4nde<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Die genauen Parameter h\u00e4ngen von der Flaschenqualit\u00e4t, dem Verschmutzungsgrad und der vorgesehenen Verwendung des recycelten PET ab.<\/p>\n\n\n<h2><strong><b>Wie funktioniert das Waschen mit kaltem Wasser?<\/b><\/strong><\/h2>\n<h2><strong><b>Funktionsprinzip<\/b><\/strong><\/h2>\n<p>Beim Kaltwaschen kommen haupts\u00e4chlich physikalische Reinigungsverfahren zum Einsatz und weniger chemische Reaktionen.<\/p>\n<p>Der Prozess umfasst in der Regel:<\/p>\n<ol>\n<li><span><\/span>PET-Flaschen werden zu Flocken zerkleinert.<\/li>\n<li><span><\/span>Durch die Reibungsreinigung werden Schmutz und lose Verunreinigungen entfernt.<\/li>\n<li><span><\/span>Durch die Schwimm-Sink-Trennung werden Materialien mit unterschiedlicher Dichte voneinander getrennt.<\/li>\n<li><span><\/span>Das Sp\u00fclen mit sauberem Wasser reduziert die verbleibenden Partikel.<\/li>\n<\/ol>\n<h2><strong><b>\u00a0<\/b><\/strong><\/h2>\n<h2><strong><b>Typische Parameter f\u00fcr die Kaltw\u00e4sche<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong><b>Parameter<\/b><\/strong><\/td>\n<td><strong><b>Typischer Bereich<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td>Wassertemperatur<\/td>\n<td>25\u201340 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Waschanleitung<\/td>\n<td>Mechanische Reibung<\/td>\n<\/tr>\n<tr>\n<td>Energieverbrauch<\/td>\n<td>Nach unten<\/td>\n<\/tr>\n<tr>\n<td>Chemikalienverbrauch<\/td>\n<td>Minimal<\/td>\n<\/tr>\n<tr>\n<td>Wichtigste entfernte Schadstoffe<\/td>\n<td>Staub, Sand, Oberfl\u00e4chenverschmutzungen<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Das Kaltwaschen eignet sich f\u00fcr relativ saubere PET-Abfallstr\u00f6me mit geringem Verunreinigungsgrad.<\/p>\n\n\n<h2><strong><b>Hei\u00dfwaschen vs. Kaltwaschen: Die wichtigsten Unterschiede<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong><b>Vergleich<\/b><\/strong><\/td>\n<td><strong><b>Hei\u00dfw\u00e4sche<\/b><\/strong><\/td>\n<td><strong><b>Kaltw\u00e4sche<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td>Reinigungsleistung<\/td>\n<td>Hoch<\/td>\n<td>Mittel<\/td>\n<\/tr>\n<tr>\n<td>Energieverbrauch<\/td>\n<td>H\u00f6her<\/td>\n<td>Nach unten<\/td>\n<\/tr>\n<tr>\n<td>Chemikalienverbrauch<\/td>\n<td>Erforderlich<\/td>\n<td>Begrenzt<\/td>\n<\/tr>\n<tr>\n<td>Entfernen von Klebstoff<\/td>\n<td>Ausgezeichnet<\/td>\n<td>Begrenzt<\/td>\n<\/tr>\n<tr>\n<td>Entfernung von \u00d6l<\/td>\n<td>G\u00fcltig<\/td>\n<td>M\u00e4\u00dfig<\/td>\n<\/tr>\n<tr>\n<td>Ausr\u00fcstungskosten<\/td>\n<td>H\u00f6her<\/td>\n<td>Nach unten<\/td>\n<\/tr>\n<tr>\n<td>Geeignete Materialien<\/td>\n<td>PET-Flaschen aus dem Endverbraucherbereich<\/td>\n<td>Sauberer PET-Abfall<\/td>\n<\/tr>\n<tr>\n<td>Bottle-to-Bottle-Recycling<\/td>\n<td>Empfohlen<\/td>\n<td>In der Regel unzureichend<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n<h2><strong><b>Vorteile des Hei\u00dfwaschens beim PET-Recycling<\/b><\/strong><\/h2>\n<ol><\/ol>\n<p><!-- \/divi:paragraph --><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;325.1px&#8221; custom_margin=&#8221;-8px|auto|-13px|auto||&#8221; custom_padding=&#8221;106px||5px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; text_font=&#8221;Poppins|500|||||||&#8221; text_font_size=&#8221;17px&#8221; text_line_height=&#8221;1.9em&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; width=&#8221;104.7%&#8221; min_height=&#8221;315.7px&#8221; custom_margin=&#8221;-92px|-283px|-20px|||&#8221; custom_padding=&#8221;0px|0px|0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<h2><strong><b>H\u00f6here Reinheit der PET-Flocken<\/b><\/strong><\/h2>\n<p>Durch Hei\u00dfwaschen werden hartn\u00e4ckige Verunreinigungen entfernt, die die PET-Qualit\u00e4t beeintr\u00e4chtigen, darunter:<\/p>\n<ul>\n<li>Flaschenetiketten<\/li>\n<li>Klebstoffr\u00fcckst\u00e4nde<\/li>\n<li>Getr\u00e4nkereste<\/li>\n<li>Lebensmittelverunreinigung<\/li>\n<li>\u00d6lverschmutzung<\/li>\n<\/ul>\n<p>PET-Flocken mit h\u00f6herer Reinheit verbessern die Leistung nachgelagerter Prozesse wie Granulierung und Extrusion.<\/p>\n<ol><\/ol>\n<p><!-- \/divi:paragraph --><\/p>\n<p><!-- \/divi:paragraph --><\/p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; text_font=&#8221;Poppins|500|||||||&#8221; text_font_size=&#8221;17px&#8221; text_line_height=&#8221;1.9em&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; width=&#8221;94.7%&#8221; min_height=&#8221;315.7px&#8221; custom_margin=&#8221;-92px|-283px|-20px|||&#8221; custom_padding=&#8221;0px|0px|0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<h2><strong><b>Bessere Recycling-Anwendungen<\/b><\/strong><\/h2>\n<p>Hochwertige gewaschene PET-Flocken k\u00f6nnen f\u00fcr folgende Zwecke verwendet werden:<\/p>\n<ul>\n<li>Herstellung von PET-Platten<\/li>\n<li>Faserherstellung<\/li>\n<li>Umreifungsbandherstellung<\/li>\n<li>Anwendungen im Bereich des Flaschen-zu-Flaschen-Recyclings<\/li>\n<\/ul>\n<p>Bei Recycling-Anwendungen im Lebensmittelbereich k\u00f6nnen je nach den regionalen Vorschriften zus\u00e4tzliche Reinigungsverfahren erforderlich sein.<\/p>\n<ol><\/ol>\n<p><!-- \/divi:paragraph --><\/p>\n<p><!-- \/divi:paragraph --><\/p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_image src=&#8221;https:\/\/slecotech.com\/wp-content\/uploads\/2026\/07\/Hot-Wash-vs.-Cold-Wash-Comparison-Infographic-1.jpg&#8221; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; width=&#8221;93.9%&#8221; min_height=&#8221;396.9px&#8221; custom_margin=&#8221;-86px|||-12px||&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;461.8px&#8221; custom_margin=&#8221;-15px|auto|2px|auto||&#8221; custom_padding=&#8221;2px|12px|5px|||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.27.4&#8243; text_font=&#8221;Poppins|500|||||||&#8221; text_font_size=&#8221;17px&#8221; text_line_height=&#8221;1.9em&#8221; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; min_height=&#8221;364.9px&#8221; custom_margin=&#8221;30px||-1px|||&#8221; custom_padding=&#8221;0px||0px|||&#8221; global_colors_info=&#8221;{}&#8221;]<h2><strong><b>H\u00e4ufige Probleme bei PET-Waschprozessen<\/b><\/strong><\/h2>\n<h2><strong><b>Problem 1: \u00dcberm\u00e4\u00dfige Klebstoffr\u00fcckst\u00e4nde<\/b><\/strong><\/h2>\n<h3><strong><b>Grund:<\/b><\/strong><\/h3>\n<p>Niedrige Waschtemperatur oder unzureichende Verweildauer.<\/p>\n<h3><strong><b>L\u00f6sung:<\/b><\/strong><\/h3>\n<p>Optimieren Sie die Hei\u00dfwaschtemperatur und die Chemikalienkonzentration, um die Entfernung von Klebstoffresten zu verbessern.<\/p>\n<h2><strong><b>\u00a0<\/b><\/strong><\/h2>\n<h2><strong><b>Problem 2: Hoher Feuchtigkeitsgehalt nach dem Waschen<\/b><\/strong><\/h2>\n<h3><strong><b>Grund:<\/b><\/strong><\/h3>\n<p>Unzureichende Entw\u00e4sserungsleistung.<\/p>\n<h3><strong><b>L\u00f6sung:<\/b><\/strong><\/h3>\n<p>Verwenden Sie Hochleistungs-Entw\u00e4sserungsanlagen und thermische Trocknungssysteme, um die Restfeuchte zu reduzieren.<\/p>\n<h2><strong><b>\u00a0<\/b><\/strong><\/h2>\n<h2><strong><b>Problem 3: Verunreinigung durch gemischte Kunststoffe<\/b><\/strong><\/h2>\n<h3><strong><b>Grund:<\/b><\/strong><\/h3>\n<p>Unvollst\u00e4ndige Sortierung vor dem Waschen.<\/p>\n<h3><strong><b>L\u00f6sung:<\/b><\/strong><\/h3>\n<p>Die Flaschensortierung verbessern und fortschrittliche Trenntechnologien integrieren.<\/p>\n\n\n<h2><strong><b>L\u00f6sungen f\u00fcr effiziente PET-Waschanlagen<\/b><\/strong><\/h2>\n<p>Ein umfassendes PET-Recyclingsystem sollte mehrere Technologien kombinieren, anstatt sich auf eine einzige Reinigungsmethode zu beschr\u00e4nken.<\/p>\n<p>Empfohlenes Vorgehen:<\/p>\n<p><strong><span>Sortieren \u2192 Etikettenentfernung \u2192 Zerkleinern \u2192 Reibungswaschen \u2192 Schwimm-Sink-Trennung \u2192 Hei\u00dfwaschen \u2192 Sp\u00fclen \u2192 Entw\u00e4ssern \u2192 Trocknen<\/span><\/strong><\/p>\n<p>Dieser integrierte Ansatz verbessert:<\/p>\n<ul>\n<li>Reinheit der PET-Flocken<\/li>\n<li>Produktionsstabilit\u00e4t<\/li>\n<li>Ger\u00e4teschutz<\/li>\n<li>Recyclingeffizienz<\/li>\n<\/ul>\n<p>Streamline Eco Tech bietet L\u00f6sungen f\u00fcr das PET-Flaschenrecycling an, die Zerkleinerer, Waschanlagen, Trennanlagen und Trocknungstechnologien umfassen. Das Unternehmen entwickelt ma\u00dfgeschneiderte PET-Waschanlagen, die auf die Beschaffenheit des Rohmaterials, die Anforderungen an die Produktionskapazit\u00e4t und die Qualit\u00e4tsziele f\u00fcr das Recyclingmaterial abgestimmt sind.<\/p>\n\n\n<h2><strong><b>FAQ: Hei\u00dfw\u00e4sche vs. Kaltw\u00e4sche beim PET-Recycling<\/b><\/strong><\/h2>\n<h2><strong><b>Ist eine Hei\u00dfw\u00e4sche f\u00fcr das Recycling von PET-Flaschen erforderlich?<\/b><\/strong><\/h2>\n<p>Eine Hei\u00dfw\u00e4sche wird empfohlen, wenn PET-Flaschen hohe Anteile an Klebstoffen, \u00d6len, Lebensmittelresten oder Verunreinigungen aus dem Endverbraucherbereich enthalten.<\/p>\n<h2><strong><b>\u00a0<\/b><\/strong><\/h2>\n<h2><strong><b>K\u00f6nnen durch Kaltw\u00e4sche hochwertige PET-Flocken hergestellt werden?<\/b><\/strong><\/h2>\n<p>Durch Kaltw\u00e4sche lassen sich zwar f\u00fcr bestimmte Anwendungen brauchbare PET-Flocken gewinnen, jedoch werden dabei m\u00f6glicherweise keine starken Verunreinigungen entfernt, was f\u00fcr ein Recycling auf h\u00f6herem Qualit\u00e4tsniveau erforderlich ist.<\/p>\n<h2><strong><b>\u00a0<\/b><\/strong><\/h2>\n<h2><strong><b>Was ist die beste Reinigungsmethode f\u00fcr das Recycling von Flaschen zu Flaschen?<\/b><\/strong><\/h2>\n<p>Das \u201eFlasche-zu-Flasche\u201c-Recycling erfordert in der Regel fortschrittliche Reinigungstechnologien, darunter Hei\u00dfw\u00e4sche, moderne Trennverfahren und zus\u00e4tzliche Reinigungsschritte.<\/p>\n\n\n<h2><strong><b>Schlussfolgerung<\/b><\/strong><\/h2>\n<p>Das Hei\u00dfwaschen sorgt f\u00fcr eine gr\u00fcndlichere Entfernung von Verunreinigungen und eine h\u00f6here Qualit\u00e4t der PET-Flocken, w\u00e4hrend das Kaltwaschen eine kosteng\u00fcnstigere L\u00f6sung f\u00fcr sauberere Materialien darstellt. Die richtige Wahl h\u00e4ngt vom Verunreinigungsgrad des Rohmaterials, den Recyclingzielen und den Anforderungen an die Endanwendung des PET ab.<\/p>\n<ol><\/ol>\n<p><!-- \/divi:paragraph --><\/p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<div class=\"slecotech-blog-cta\" style=\"margin-top:32px;padding:24px;border:1px solid #e5e7eb;border-radius:8px;background:#f8fafc;\">\n<h2>Ben\u00f6tigen Sie eine Waschl\u00f6sung f\u00fcr das PET-Recycling?<\/h2>\n<p>SLECOTECH bietet Anlagen zum Waschen und Zerkleinern von Kunststoffen sowie ma\u00dfgeschneiderte Recyclinganlagen f\u00fcr PET-Flaschen-Recyclinglinien an.<\/p>\n<p><a href=\"https:\/\/slecotech.com\/de\/products-streamline-eco-tech\/\" style=\"display:inline-block;margin-right:12px;padding:10px 16px;background:#0b5cab;color:#fff;text-decoration:none;border-radius:4px;\">Recycling-Anlagen anzeigen<\/a><a href=\"https:\/\/slecotech.com\/de\/contact\/\" style=\"display:inline-block;padding:10px 16px;border:1px solid #0b5cab;color:#0b5cab;text-decoration:none;border-radius:4px;\">Kontakt<\/a><\/p>\n<\/div>\n\n<h2>H\u00e4ufig gestellte Fragen<\/h2>\n\n\n<div class=\"sle-seo-enhance\" style=\"max-width:1280px;margin:32px auto;padding:0 28px;color:#0b1220;\">\n<!--SLE-SEO-POST-->\n<h2>H\u00e4ufig gestellte Fragen<\/h2>\n    <h3>Was ist eine PET-Waschanlage und wozu dient sie?<\/h3>\n    <p>Eine PET-Waschanlage reinigt gebrauchte Flaschen und wandelt sie in hei\u00df gewaschene Flocken um, die f\u00fcr die Pelletierung bereit sind. Zu den typischen Prozessschritten geh\u00f6ren das Entfernen der Etiketten, das Kalt- und Hei\u00dfwaschen, das Reibeschrubben, das Sp\u00fclen, das Trennen und das Trocknen.<\/p>\n    <h3>Hei\u00dfwaschen oder Kaltwaschen \u2013 was brauche ich?<\/h3>\n    <p>Das Hei\u00dfwaschen mit Lauge entfernt Klebstoffe, \u00d6le und R\u00fcckst\u00e4nde besser und wird f\u00fcr lebensmitteltaugliches oder hochwertiges PET bevorzugt. Das Kaltwaschen verbraucht weniger Energie und eignet sich f\u00fcr leichtere Verschmutzungen. Die richtige Wahl h\u00e4ngt von Ihrem Ausgangsmaterial und Ihrem Endmarkt ab.<\/p>\n    <h3>Welche Verunreinigungen muss eine Waschlinie entfernen?<\/h3>\n    <p>Etiketten und Kleber, Lebensmittel- und \u00d6lr\u00fcckst\u00e4nde, Verschl\u00fcsse und Ringe sowie Fremdstoffe aus Kunststoff oder Metall. Hochwertige Anlagen kombinieren Waschen, Dichtesortierung und Metallentfernung, um die Reinheitsanforderungen f\u00fcr Flocken zu erf\u00fcllen.<\/p>\n<h2>Zugeh\u00f6rige Ausr\u00fcstung<\/h2>\n<ul>\n      <li><a href=\"https:\/\/slecotech.com\/de\/products-streamline-eco-tech\/\">Alle SLECOTECH-Ger\u00e4te<\/a><\/li>\n      <li><a href=\"https:\/\/slecotech.com\/de\/product\/plastic-crusher-c-series\/\">Kunststoffbrecher (C-Serie)<\/a><\/li>\n      <li><a href=\"https:\/\/slecotech.com\/de\/contact-streamline-eco-tech\/\">Angebot anfordern<\/a><\/li>\n<\/ul>\n<\/div>\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is a PET washing line and what does it do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A PET washing line cleans post-consumer bottles into hot-washed flakes ready for pelletising. Stages typically include label removal, cold and hot washing, friction scrubbing, rinsing, separation and drying.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Hot washing vs cold washing - which do I need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Hot washing with caustic better removes glues, oils and residues and is preferred for food-grade or high-value PET. Cold washing uses less energy and suits lighter contamination. The right choice depends on your input and end market.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What contaminants must a washing line remove?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Labels and glue, food and oil residues, caps and rings, and foreign plastics or metals. Good lines combine washing, density separation and metal removal to hit flake purity specs.\"\n            }\n        }\n    ]\n}<\/script>","protected":false},"excerpt":{"rendered":"<p>Hei\u00df- und Kaltw\u00e4sche sind zwei wichtige Reinigungsverfahren beim Recycling von PET-Flaschen. In diesem Artikel werden ihre Unterschiede, ihre Funktionsweise, ihre Reinigungsleistung sowie die Vorgehensweise von Recyclingunternehmen bei der Auswahl des richtigen Waschverfahrens zur Herstellung hochwertiger PET-Flocken erl\u00e4utert.<\/p>","protected":false},"author":2,"featured_media":1868,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<!-- wp:paragraph -->\n<p><strong><strong>1. Overview of Single-Shaft Shredders<\/strong><\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>The single-shaft shredder is an industrial crushing device designed with a single rotating shaft and blades. Driven by a motor, it cuts, tears, and grinds materials. Compact in structure and highly adaptable, it is widely used to process plastics, wood, rubber, thin metal sheets, and more, particularly in small-to-medium-scale waste recycling scenarios.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":112,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full\"><img src=\"http:\/\/49.51.38.20\/wp-content\/uploads\/2025\/01\/Single-shaft-shredder-1.png\" alt=\"\" class=\"wp-image-112\"\/><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p><strong>2. Core Structure &amp; Working Principle<\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><strong>Key Components<\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong>Blade Shaft System<\/strong>: Multiple sets of carbide blades mounted on a single shaft, driven by hydraulics or a motor for high-speed rotation;<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Screen Mesh<\/strong>: Replaceable mesh at the bottom controls output particle size;<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Enclosed Chamber<\/strong>: Sealed structure reduces noise and dust emissions<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:paragraph -->\n<p><strong>Working Process<\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p>Materials are fed into the hopper, where blades decompose waste into uniform fragments through a combination of shearing and tearing. Particles meeting the mesh size are discharged automatically, while oversized fragments undergo repeated crushing.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><strong>Applications &amp; Advantages<\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:paragraph -->\n<p><strong>Typical Applications<\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong>Plastic Recycling<\/strong>: Shredding PET bottles, films, and injection molding scraps to improve recycled pellet production efficiency;<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Wood Processing<\/strong>: Crushing furniture waste and branches to generate raw materials for biomass fuel;<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>E-Waste Recycling<\/strong>: Decomposing circuit boards and cables to separate metals from plastics.<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:paragraph -->\n<p><strong>Key Advantages<\/strong><\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:list -->\n<ul class=\"wp-block-list\"><!-- wp:list-item -->\n<li><strong>Low-Speed, High-Torque<\/strong>: Handles hard or tough materials while minimizing jamming risks;<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Customizable<\/strong>: Blade shapes and screen mesh sizes can be adjusted for specific needs;<\/li>\n<!-- \/wp:list-item -->\n\n<!-- wp:list-item -->\n<li><strong>Easy Maintenance<\/strong>: Modular design enables rapid replacement of worn parts.<\/li>\n<!-- \/wp:list-item --><\/ul>\n<!-- \/wp:list -->\n\n<!-- wp:paragraph -->\n<p><\/p>\n<!-- \/wp:paragraph -->","_et_gb_content_width":"1080","footnotes":""},"categories":[31,30],"tags":[],"class_list":["post-1854","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","category-recycling-production-lines-recycling-systems"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Hot Washing vs Cold Washing in PET Recycling<\/title>\r\n<meta name=\"description\" content=\"Learn the difference between hot washing and cold washing in PET recycling, including process, parameters, benefits, and applications.\" \/>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/slecotech.com\/de\/hot-washing-vs-cold-washing-pet-recycling\/\" \/>\r\n<meta property=\"og:locale\" content=\"de_DE\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Hot Washing vs Cold Washing in PET Recycling\" \/>\r\n<meta property=\"og:description\" content=\"Learn the difference between hot washing and cold washing in PET recycling, including process, parameters, benefits, and applications.\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/slecotech.com\/de\/hot-washing-vs-cold-washing-pet-recycling\/\" \/>\r\n<meta property=\"og:site_name\" content=\"Industrial shredders &amp; 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