{"id":307285,"date":"2025-11-20T15:04:50","date_gmt":"2025-11-20T15:04:50","guid":{"rendered":"https:\/\/www.procarton.com\/?page_id=307285"},"modified":"2025-11-20T15:18:25","modified_gmt":"2025-11-20T15:18:25","slug":"cartonboard-production","status":"publish","type":"page","link":"https:\/\/www.procarton.com\/it\/activities\/cepi-cartonboard\/cartonboard-production\/","title":{"rendered":"Produzione del cartoncino"},"content":{"rendered":"<div class=\"av-animated-generic top-to-bottom flex_column av_three_fourth  flex_column_div av-zero-column-padding first  avia-builder-el-0  el_before_av_one_fourth  avia-builder-el-first\" style='border-radius:0px; '>\n<section class=\"av_textblock_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" >\n<div class='avia_textblock'   itemprop=\"text\" >\n<p><strong>Materie prime<\/strong><\/p>\n<p>Il cartone \u00e8 costituito da fibre di cellulosa prodotte a partire dal legno o dal riutilizzo di fibre recuperate o di carta da macero. \u00c8 possibile utilizzare una combinazione di questi due materiali ed esistono vari tipi di fibre che producono caratteristiche diverse.<\/p>\n<p>La cellulosa viene prodotta meccanicamente o chimicamente utilizzando i diradamenti delle foreste e gli scarti delle segherie, lasciando che gli alberi pi\u00f9 grandi maturino per ottenere segati destinati ad usi quali l'edilizia e i mobili. Tutta la pasta utilizzata dalle aziende associate a Pro Carton \u00e8 prodotta con legname proveniente da foreste certificate e nelle foreste gestite vengono piantati pi\u00f9 alberi di quanti ne vengano tagliati, garantendo cos\u00ec una base di materie prime sempre pi\u00f9 ampia e infinitamente rinnovabile.<\/p>\n<p>La fibra recuperata o la carta da macero vengono raccolte in tutta Europa il pi\u00f9 vicino possibile al punto di utilizzo per ridurre i trasporti. Possono essere utilizzati tutti i tipi di carta, cartone e imballaggi e, dopo la cernita, le balle di fibra recuperata vengono consegnate alle cartiere per essere utilizzate. Si stima che le fibre di carta e cartone possano essere utilizzate fino a sette volte. In Europa, circa 46% di cartoncino sono prodotte a partire dalla pasta di cellulosa, mentre il resto di 54% \u00e8 prodotto utilizzando fibre recuperate o carta da macero.<\/p>\n<p><strong>Produzione di cartone<\/strong><\/p>\n<p>L'inizio del processo di produzione \u00e8 l'area di preparazione. Qui la fibra, sotto forma di pasta o di carta recuperata, viene mescolata con acqua in grandi idropulitrici fino a ottenere una sospensione molto fine. Questa viene poi pulita per rimuovere eventuali contrari, raffinata per aumentarne la resistenza e quindi pompata alla macchina per cartoni dove viene prodotto il cartone.<\/p>\n<p>La miscela di fibre e acqua proveniente dall'impianto di preparazione viene pompata alla macchina per cartoni e questa miscela molto sottile viene posta su diverse reti metalliche in continuo movimento. Man mano che l'acqua defluisce attraverso le maglie, le fibre iniziano a \u2018solidificarsi\u2019 e quindi ogni foglio viene unito per formare un foglio continuo di cartoncino. Questo viene poi pressato da grandi rulli per spremere altra acqua e quindi passato su cilindri riscaldati a vapore per far evaporare altra acqua.<\/p>\n<p>Quando il cartone ha raggiunto il contenuto di umidit\u00e0 richiesto, vengono aggiunti fino a tre strati di rivestimento - prevalentemente a base di argilla e gesso - sulla superficie del cartone. Questi rivestimenti migliorano la scorrevolezza e la brillantezza e sono necessari per ottenere l'alta qualit\u00e0 di stampa richiesta dai cartoni.<\/p>\n<p>L'intero processo \u00e8 controllato al computer con tolleranze molto strette per garantire la costanza della qualit\u00e0. Una volta prodotto, il cartone viene trasferito nell'area di finitura, dove viene tagliato in base alle esigenze individuali del cliente, in bobine pi\u00f9 piccole o, pi\u00f9 spesso, in fogli su pallet.<\/p>\n<p><strong>Finitura del cartone<\/strong><\/p>\n<p>Dopo che il cartone \u00e8 stato avvolto in enormi bobine alla fine della macchina, deve essere convertito in un formato utilizzabile da stampatori e clienti otter. La maggior parte del cartone viene venduto in fogli su pallet, ma viene anche avvolto in bobine pi\u00f9 piccole che vengono poi spedite ai clienti che stampano direttamente dalle bobine.<\/p>\n<\/div>\n<\/section>\n<\/div>\n<div class=\"av-animated-generic top-to-bottom flex_column av_one_fourth  flex_column_div av-zero-column-padding   avia-builder-el-2  el_after_av_three_fourth  avia-builder-el-last\" style='border-radius:0px; '>\n<div  class='avia-image-container  av-styling-    avia-builder-el-3  el_before_av_image  avia-builder-el-first  avia-align-center'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"  >\n<div class='avia-image-container-inner'>\n<div class='avia-image-overlay-wrap'><img decoding=\"async\" width=\"600\" height=\"202\" class='wp-image-274643 avia-img-lazy-loading-not-274643 avia_image' src=\"https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/02\/Holmen-Iggesund-Workington-Mill-Biomass-Boiler.jpg\" alt='' title='Caldaia a biomassa Holmen Iggesund Workington Mill'  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/02\/Holmen-Iggesund-Workington-Mill-Biomass-Boiler.jpg 600w, https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/02\/Holmen-Iggesund-Workington-Mill-Biomass-Boiler-300x101.jpg 300w, https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/02\/Holmen-Iggesund-Workington-Mill-Biomass-Boiler-18x6.jpg 18w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/div>\n<\/div>\n<\/div>\n<div  class='avia-image-container  av-styling-    avia-builder-el-4  el_after_av_image  avia-builder-el-last  avia-align-center'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"  >\n<div class='avia-image-container-inner'>\n<div class='avia-image-overlay-wrap'><img decoding=\"async\" width=\"500\" height=\"364\" class='wp-image-277247 avia-img-lazy-loading-not-277247 avia_image' src=\"https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/05\/Husum-Mill.jpg\" alt='' title='Mulino di Husum'  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/05\/Husum-Mill.jpg 500w, https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/05\/Husum-Mill-300x218.jpg 300w, https:\/\/www.procarton.com\/wp-content\/uploads\/2022\/05\/Husum-Mill-16x12.jpg 16w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":5916,"featured_media":264882,"parent":307280,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-307285","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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