{"id":3499,"date":"2025-09-08T09:43:24","date_gmt":"2025-09-08T01:43:24","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3499"},"modified":"2025-09-08T09:43:29","modified_gmt":"2025-09-08T01:43:29","slug":"the-benefits-of-using-calcium-carbonate-in-paper-industry","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/fr\/the-benefits-of-using-calcium-carbonate-in-paper-industry\/","title":{"rendered":"Les avantages de l&#039;utilisation du carbonate de calcium dans l&#039;industrie papeti\u00e8re"},"content":{"rendered":"<p>Actuellement, la quantit\u00e9 de charges et de pigments utilis\u00e9s dans la fabrication du papier est la deuxi\u00e8me mati\u00e8re premi\u00e8re la plus importante, apr\u00e8s les fibres. Parmi les charges courantes utilis\u00e9es dans la fabrication du papier, on trouve le carbonate de calcium, le talc, le kaolin, la wollastonite, la bentonite, entre autres. \u00c0 mesure que le proc\u00e9d\u00e9 acide de fabrication du papier \u00e9volue vers des proc\u00e9d\u00e9s neutres et alcalins, <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/\">carbonate de calcium<\/a>, en tant que mati\u00e8re premi\u00e8re importante dans la fabrication du papier, est de plus en plus utilis\u00e9 dans l&#039;industrie papeti\u00e8re.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-calcium-carbonate.webp\" alt=\"broyeur \u00e0 boulets pour carbonate de calcium\" class=\"wp-image-3438\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-calcium-carbonate.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-calcium-carbonate-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-calcium-carbonate-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-calcium-carbonate-768x768.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-calcium-carbonate-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">broyeur \u00e0 boulets pour carbonate de calcium<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Le r\u00f4le de <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/ball-mill\/\">Carbonate de calcium<\/a> dans l&#039;industrie du papier<\/h2>\n\n\n\n<p>Le carbonate de calcium est principalement utilis\u00e9 dans la fabrication du papier de deux mani\u00e8res principales : comme charge de fabrication du papier et comme pigment de couchage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Remplissage<\/h3>\n\n\n\n<p>Les charges papeti\u00e8res sont de fines poudres min\u00e9rales blanches, g\u00e9n\u00e9ralement insolubles ou l\u00e9g\u00e8rement solubles dans l&#039;eau. Leur utilisation est principalement destin\u00e9e \u00e0\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les charges se dispersent entre les fibres de la p\u00e2te, comblant les vides et am\u00e9liorant les propri\u00e9t\u00e9s optiques du papier telles que l&#039;opacit\u00e9 et la brillance.<\/li>\n\n\n\n<li>Am\u00e9liore l&#039;absorption de l&#039;encre du papier, le rendant plus adapt\u00e9 \u00e0 l&#039;impression.<\/li>\n\n\n\n<li>R\u00e9pondre \u00e0 certaines exigences sp\u00e9cifiques en mati\u00e8re de propri\u00e9t\u00e9s du papier, telles que l&#039;am\u00e9lioration de la conductivit\u00e9 ou de la r\u00e9sistance \u00e0 la chaleur.<\/li>\n\n\n\n<li>R\u00e9duire l\u2019utilisation de mati\u00e8res premi\u00e8res fibreuses, diminuant ainsi les co\u00fbts de production.<\/li>\n\n\n\n<li>Les charges ont une grande surface sp\u00e9cifique, ce qui permet de surmonter les probl\u00e8mes de r\u00e9sine.<\/li>\n<\/ul>\n\n\n\n<p>Les avantages de l\u2019utilisation du carbonate de calcium comme charge pour la fabrication du papier comprennent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Source abondante et faible co\u00fbt.<\/li>\n\n\n\n<li>Particules fines, blancheur \u00e9lev\u00e9e et opacit\u00e9 du papier consid\u00e9rablement am\u00e9lior\u00e9e.<\/li>\n\n\n\n<li>Absorption rapide de l&#039;encre, am\u00e9liorant la r\u00e9ceptivit\u00e9 de l&#039;encre du papier.<\/li>\n\n\n\n<li>Rend le papier plus doux, plus dense et lui donne une brillance \u00e9lev\u00e9e.<\/li>\n\n\n\n<li>A peu d\u2019effet sur la r\u00e9sistance physique du papier.<\/li>\n<\/ul>\n\n\n\n<p>La quantit\u00e9 de charge ajout\u00e9e d\u00e9pend principalement de facteurs tels que le type de papier, le type de p\u00e2te, les propri\u00e9t\u00e9s de la charge elle-m\u00eame et les conditions de fabrication du papier. Pour r\u00e9duire la consommation de fibres et les co\u00fbts de production, il est n\u00e9cessaire d&#039;augmenter la quantit\u00e9 de charge de mani\u00e8re appropri\u00e9e, tout en veillant \u00e0 ce que le papier r\u00e9ponde aux exigences de production et d&#039;utilisation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Rev\u00eatement<\/h3>\n\n\n\n<p>Le couchage vise \u00e0 am\u00e9liorer la qualit\u00e9 et l&#039;uniformit\u00e9 du papier ou du carton imprim\u00e9 final. L&#039;objectif principal des pigments de couchage est d&#039;obtenir de meilleures propri\u00e9t\u00e9s optiques, un liss\u00e9 et une brillance sup\u00e9rieurs. Le facteur le plus important est d&#039;obtenir un meilleur effet visuel d&#039;impression. Les couchages du papier sont g\u00e9n\u00e9ralement compos\u00e9s de pigments, de liants, d&#039;additifs et d&#039;eau, les pigments \u00e9tant les plus importants. Les caract\u00e9ristiques du papier couch\u00e9 d\u00e9pendent largement du choix du pigment.<\/p>\n\n\n\n<p>Gr\u00e2ce \u00e0 sa blancheur \u00e9lev\u00e9e et \u00e0 sa bonne fluidit\u00e9, le carbonate de calcium est adapt\u00e9 \u00e0 la pr\u00e9paration de rev\u00eatements \u00e0 haute teneur en solides. Il n\u00e9cessite moins de liant, ce qui am\u00e9liore l&#039;absorption de l&#039;encre par le rev\u00eatement. Il offre \u00e9galement une blancheur et une teinte optimales, am\u00e9liorant ainsi la perm\u00e9abilit\u00e9. Le carbonate de calcium est l&#039;un des pigments de rev\u00eatement les plus couramment utilis\u00e9s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Diff\u00e9rences dans l&#039;application du carbonate de calcium broy\u00e9 (GCC) et du carbonate de calcium pr\u00e9cipit\u00e9 (PCC) dans l&#039;industrie papeti\u00e8re<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"552\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/09\/papermaking-industry.webp\" alt=\"industrie papeti\u00e8re\" class=\"wp-image-3500\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/09\/papermaking-industry.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/09\/papermaking-industry-300x207.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/09\/papermaking-industry-768x530.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/09\/papermaking-industry-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/astra-portfolio\/calcium-carbonate-superfine-classifier-project-2\/\">carbonate de calcium moulu<\/a> Le (GCC) est principalement utilis\u00e9 comme charge dans les papiers d&#039;impression, d&#039;\u00e9criture, de bureau et publicitaires, \u00e0 l&#039;exception du papier \u00e0 cigarettes, du papier filtre et des papiers sp\u00e9ciaux \u00e0 faible grammage. Le carbonate de calcium pr\u00e9cipit\u00e9 (PCC) peut \u00eatre appliqu\u00e9 \u00e0 tous les types de papier, mais il est actuellement principalement utilis\u00e9 comme charge dans les papiers haut de gamme, tels que le papier \u00e0 cigarettes, les papiers d&#039;information bureautique (par exemple, papier pour fax, papier pour instruments, papier jet d&#039;encre), le papier journal \u00e0 faible grammage et le papier couch\u00e9 \u00e0 faible grammage. Le GCC et le PCC pr\u00e9sentent tous deux des avantages en tant que charges papeti\u00e8res, et le choix du type \u00e0 utiliser d\u00e9pend des exigences sp\u00e9cifiques du proc\u00e9d\u00e9 de production.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le GCC a une meilleure fluidit\u00e9 que le PCC et permet d&#039;\u00e9conomiser l&#039;utilisation de liant dans les rev\u00eatements, ce qui le rend adapt\u00e9 aux rev\u00eatements \u00e0 haute teneur en solides et aux formulations \u00e0 rapport de plus en plus \u00e9lev\u00e9.<\/li>\n\n\n\n<li>En raison du co\u00fbt de fabrication plus \u00e9lev\u00e9 du PCC et de ses propri\u00e9t\u00e9s rh\u00e9ologiques relativement m\u00e9diocres, il ne peut pas encore concurrencer le GCC dans les applications de rev\u00eatement.<\/li>\n<\/ul>\n\n\n\n<p>Cependant, les PCC modifi\u00e9s, ou nanoparticules plus fines de carbonate de calcium, sont largement reconnus pour leurs applications fonctionnelles dans l&#039;industrie papeti\u00e8re. Ils contribuent \u00e0 conf\u00e9rer au papier des propri\u00e9t\u00e9s sp\u00e9cifiques tout en r\u00e9duisant les co\u00fbts. Leur impact sur la qualit\u00e9 du papier comprend les aspects suivants\u00a0:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Rigidit\u00e9<\/h3>\n\n\n\n<p>La rigidit\u00e9 du papier d\u00e9pend de son \u00e9paisseur et de son module d&#039;\u00e9lasticit\u00e9. L&#039;effet des charges sur la rigidit\u00e9 doit tenir compte \u00e0 la fois de leur influence sur la masse volumique apparente et sur la r\u00e9sistance \u00e0 la traction.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lorsque la teneur en charges est faible, l&#039;ajout de charges a peu d&#039;effet sur la rigidit\u00e9 du papier.<\/li>\n\n\n\n<li>Lorsque la teneur en charge augmente, la rigidit\u00e9 diminue consid\u00e9rablement avec l&#039;augmentation de la quantit\u00e9 de charge.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Densit\u00e9 (densit\u00e9 apparente)<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-super-fine-powders.webp\" alt=\"broyeur \u00e0 boulets pour poudres ultrafines\" class=\"wp-image-3447\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-super-fine-powders.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-super-fine-powders-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-super-fine-powders-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-super-fine-powders-768x768.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/08\/ball-mill-for-super-fine-powders-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">broyeur \u00e0 boulets pour poudres ultrafines<\/figcaption><\/figure>\n\n\n\n<p>La densit\u00e9 des fibres de papier est de 1 gramme par centim\u00e8tre cube, tandis que celle de la plupart des charges est comprise entre 2,5 et 3,0 grammes par centim\u00e8tre cube. Par cons\u00e9quent, l&#039;ajout de charges modifie la masse volumique apparente du papier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">R\u00e9sistance du papier<\/h3>\n\n\n\n<p>La r\u00e9sistance du papier repose sur la liaison entre les fibres, et l&#039;ajout de charges r\u00e9duit cette liaison. Par cons\u00e9quent, un exc\u00e8s de charges peut r\u00e9duire consid\u00e9rablement la r\u00e9sistance du papier. Cela se remarque surtout en termes de r\u00e9sistance \u00e0 la traction, de r\u00e9sistance au pliage et de r\u00e9sistance \u00e0 l&#039;\u00e9clatement, tandis que la r\u00e9sistance \u00e0 la d\u00e9chirure est moins affect\u00e9e. L&#039;utilisation de certains additifs papetiers peut contribuer \u00e0 r\u00e9duire cette perte de r\u00e9sistance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Am\u00e9lioration de l&#039;opacit\u00e9<\/h3>\n\n\n\n<p>Le papier sans charges est compos\u00e9 de fibres et d&#039;air. L&#039;air occupe les espaces vides entre les fibres et, comme l&#039;indice de r\u00e9fraction de l&#039;air diff\u00e8re de celui de la fibre, une partie de la lumi\u00e8re est diffus\u00e9e \u00e0 l&#039;interface fibre-air, ce qui conf\u00e8re au papier une certaine opacit\u00e9 (relativement faible). Il en r\u00e9sulte une faible opacit\u00e9 \u00e0 l&#039;impression.<\/p>\n\n\n\n<p>L&#039;ajout de carbonate de calcium, dont l&#039;indice de r\u00e9fraction est sup\u00e9rieur \u00e0 celui de la cellulose, augmente le nombre d&#039;interfaces de diffusion dans le papier. Il existe trois types d&#039;interfaces\u00a0: fibre-air, charge-fibre et charge-air. La diffusion la plus importante se produit \u00e0 l&#039;interface charge-air, augmentant ainsi l&#039;opacit\u00e9 du papier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Impact sur les performances du papier d&#039;impression<\/h3>\n\n\n\n<p>L&#039;ajout de carbonate de calcium au papier d&#039;impression am\u00e9liore son imprimabilit\u00e9, notamment en augmentant sa brillance, son liss\u00e9, son opacit\u00e9 et sa rigidit\u00e9. Il am\u00e9liore \u00e9galement l&#039;affinit\u00e9 de l&#039;encre, sa douceur et sa stabilit\u00e9, contribuant ainsi \u00e0 la qualit\u00e9 des produits imprim\u00e9s.<\/p>\n\n\n\n<p>Bien s\u00fbr, un ajout excessif de charges peut avoir des effets n\u00e9gatifs, notamment une diminution de la r\u00e9sistance du papier et des performances de collage. Cela peut entra\u00eener des probl\u00e8mes tels que la formation de poussi\u00e8re, le peluchage ou le maculage de l&#039;encre lors de l&#039;impression. Les charges peuvent \u00e9galement user les plaques d&#039;impression par frottement, mais l&#039;utilisation de PCC permet de minimiser cet effet.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Impact sur les propri\u00e9t\u00e9s sp\u00e9ciales du papier<\/h3>\n\n\n\n<p>Les recherches sur le carbonate de nanocalcium montrent que l\u2019ajout de charges de carbonate de nanocalcium dans la fabrication du papier peut conf\u00e9rer au papier les caract\u00e9ristiques suivantes :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Il ralentit le processus de vieillissement du papier, lui permettant d&#039;\u00eatre conserv\u00e9 plus longtemps.<\/li>\n\n\n\n<li>Il peut absorber certaines quantit\u00e9s de lumi\u00e8re UV.<\/li>\n\n\n\n<li>Il emp\u00eache le papier de jaunir et de devenir cassant, et il offre de bonnes propri\u00e9t\u00e9s d&#039;isolation.<\/li>\n<\/ul>\n\n\n\n<p>Utilis\u00e9 comme pigment de couchage, le carbonate de nanocalcium am\u00e9liore la brillance, la blancheur et la teinte de la couche de couchage. Il garantit la puret\u00e9 des pigments blancs et am\u00e9liore l&#039;opacit\u00e9, la brillance et la brillance d&#039;impression. Il peut \u00e9galement modifier les propri\u00e9t\u00e9s rh\u00e9ologiques des liquides de pr\u00e9paration de couchage et permettre des rev\u00eatements fonctionnels tels que l&#039;isolation, la conductivit\u00e9 et les propri\u00e9t\u00e9s antibact\u00e9riennes. Le carbonate de nanocalcium, utilis\u00e9 comme charge papeti\u00e8re, est principalement utilis\u00e9 dans la production de papiers sp\u00e9ciaux, tels que les couches, les serviettes hygi\u00e9niques, le papier photo jet d&#039;encre, les mouchoirs en papier et les membranes respirantes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/contact\/\">Poudre \u00e9pique<\/a><\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Syst\u00e8me de broyeur \u00e0 boulets et de classificateur pour carbonate de calcium-EPIC\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/SVjfmdFpEOc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Epic Powder, plus de 20 ans d&#039;exp\u00e9rience dans l&#039;industrie des poudres ultrafines. Nous promouvons activement le d\u00e9veloppement futur des poudres ultrafines, en nous concentrant sur les proc\u00e9d\u00e9s de concassage, de broyage, de classification et de modification. Contactez-nous pour une consultation gratuite et des solutions personnalis\u00e9es\u00a0! Notre \u00e9quipe d&#039;experts s&#039;engage \u00e0 vous fournir des produits et services de haute qualit\u00e9 pour optimiser la valeur de vos proc\u00e9d\u00e9s de traitement des poudres. Epic Powder\u00a0: votre expert de confiance en traitement des poudres\u00a0!<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/fr\/wp-json\/wp\/v2\/posts\/3499#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/fr\/wp-json\/wp\/v2\/posts\/3499#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre nom*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Votre entreprise\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Votre message\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Soumettre\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 40%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\nwidth: 40%;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 90%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Actuellement, la quantit\u00e9 de charges et de pigments utilis\u00e9s dans la fabrication du papier est la deuxi\u00e8me mati\u00e8re premi\u00e8re la plus importante, apr\u00e8s les fibres. Parmi les charges courantes utilis\u00e9es dans la fabrication du papier, on trouve le carbonate de calcium, le talc, le kaolin, la wollastonite, la bentonite, entre autres. \u00c0 mesure que le proc\u00e9d\u00e9 acide de fabrication du papier \u00e9volue vers des proc\u00e9d\u00e9s neutres et alcalins, le carbonate de calcium, en tant que mati\u00e8re premi\u00e8re importante [\u2026]<\/p>","protected":false},"author":1,"featured_media":3502,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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