{"id":1408,"date":"2023-02-06T15:15:53","date_gmt":"2023-02-06T15:15:53","guid":{"rendered":"https:\/\/dabeer.es\/?p=1408"},"modified":"2023-02-08T08:32:30","modified_gmt":"2023-02-08T08:32:30","slug":"del-tronco-a-la-hoja-de-papel","status":"publish","type":"post","link":"https:\/\/dabeer.es\/es\/del-tronco-a-la-hoja-de-papel\/","title":{"rendered":"Del tronco a la hoja de papel"},"content":{"rendered":"<p><em>A nivel mundial, se estima que el consumo de papel en el 2022 ha rondado en torno a los 415 millones de toneladas m\u00e9tricas. Un consumo tan elevado requiere de una gran cantidad de recursos disponibles de materias primas.<\/em><\/p>\n<h2><strong>\u00bfSabes c\u00f3mo se obtiene el papel?<\/strong><\/h2>\n<p>El papel se produce con las fibras de celulosa procedente, principalmente, de la madera de los troncos de los \u00e1rboles. La celulosa se obtiene f\u00e1cilmente mediante una extracci\u00f3n, que puede ser tanto qu\u00edmica como mec\u00e1nica, de las fibras vegetales que forman parte de los \u00e1rboles.<\/p>\n<p>Estas fibras se transforman en una pasta oscura, debido a la presencia de la lignina, conocida como pulpa de papel. Esta pasta ser\u00e1 lavada, filtrada y finalmente secada para pasar a su posterior blanqueamiento.\u00a0 Con la etapa de blanqueo se elimina toda la cantidad de lignina que no haya sido posible eliminar durante el tratamiento previo de la pulpa. Se calcula que para fabricar una tonelada de pasta blanqueada obtenida por m\u00e9todos qu\u00edmicos hace falta el doble de toneladas de madera. En cambio, si la extracci\u00f3n se realiza por m\u00e9todos mec\u00e1nicos, por cada 10 toneladas de madera se obtienen 9 de pasta de papel.<\/p>\n<p>Existen diferentes m\u00e9todos para blanquear la pulpa de papel. Uno de los m\u00e1s utilizados consiste en el uso de per\u00f3xidos (H2O2) como agentes blanqueantes. Durante el proceso de blanqueo es muy importante eliminar toda traza met\u00e1lica procedente tanto del agua utilizada en el proceso de fabricaci\u00f3n del papel como directamente de la propia madera, ya que estas impurezas podr\u00edan descomponer o desestabilizar el agente blanqueante. Para garantizar una mayor duraci\u00f3n y rendimiento del blanqueador, se a\u00f1aden agentes secuestrantes antes del blanqueo de la pulpa, eliminando as\u00ed las trazas met\u00e1licas que pueden interferir negativamente durante el proceso.<\/p>\n<p>Tras el blanqueo, la pasta obtenida se estira, se prensa y se seca. Finalmente, se le aplica un tratamiento a la superficie del papel, se coloca en bobinas y se corta seg\u00fan la aplicaci\u00f3n y medida deseada.<\/p>\n<p><em>Et<\/em> <em>voil\u00e1<\/em>, papel listo para darle uso!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A nivel mundial, se estima que el consumo de papel en el 2022 ha rondado en torno a los 415 millones de toneladas m\u00e9tricas. Un consumo tan elevado requiere de una gran cantidad de recursos disponibles de materias primas. \u00bfSabes c\u00f3mo se obtiene el papel? El papel se produce con las fibras de celulosa procedente, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1406,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[90],"tags":[],"class_list":["post-1408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-papel"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Del tronco a la hoja de papel - Dabeer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dabeer.es\/es\/del-tronco-a-la-hoja-de-papel\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Del tronco a la hoja de papel - Dabeer\" \/>\n<meta property=\"og:description\" content=\"A nivel mundial, se estima que el consumo de papel en el 2022 ha rondado en torno a los 415 millones de toneladas m\u00e9tricas. 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