{"id":4019,"date":"2026-08-12T14:31:49","date_gmt":"2026-08-12T06:31:49","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=4019"},"modified":"2026-08-12T14:31:51","modified_gmt":"2026-08-12T06:31:51","slug":"how-do-ultra-fine-grinding-and-modification-equipment-empower-calcium-carbonate-to-achieve-exceptional-whiteness-and-smoothness-in-paper","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/fr\/how-do-ultra-fine-grinding-and-modification-equipment-empower-calcium-carbonate-to-achieve-exceptional-whiteness-and-smoothness-in-paper\/","title":{"rendered":"Comment les \u00e9quipements de broyage et de modification ultrafins permettent-ils au carbonate de calcium d&#039;atteindre une blancheur et une douceur exceptionnelles dans le papier ?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Dans l&#039;industrie papeti\u00e8re, le carbonate de calcium \u2013 notamment le carbonate de calcium broy\u00e9 (GCC) et le carbonate de calcium pr\u00e9cipit\u00e9 (PCC) \u2013 est une mati\u00e8re premi\u00e8re essentielle pour am\u00e9liorer la qualit\u00e9 du papier et r\u00e9duire les co\u00fbts de production. Il am\u00e9liore la blancheur, l&#039;opacit\u00e9 et le lissage. Il am\u00e9liore \u00e9galement l&#039;absorption de l&#039;encre et l&#039;imprimabilit\u00e9. Cependant, le calcaire brut ou le carbonate de calcium grossier ne peuvent \u00eatre utilis\u00e9s directement dans les proc\u00e9d\u00e9s de fabrication de papier de haute qualit\u00e9. L&#039;efficacit\u00e9 optimale du carbonate de calcium d\u00e9pend en grande partie des \u00e9quipements utilis\u00e9s en amont. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/\">\u00c9quipement de broyage ultrafin du carbonate de calcium<\/a> Il est indispensable de contr\u00f4ler pr\u00e9cis\u00e9ment la taille et la distribution des particules. L&#039;\u00e9quipement de modification de surface doit \u00eatre adapt\u00e9 \u00e0 l&#039;affinit\u00e9 interfaciale et au rev\u00eatement.<\/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\/2026\/06\/calcium-carbonate-grinding-mill.webp\" alt=\"broyeur \u00e0 carbonate de calcium\" class=\"wp-image-3904\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-768x768.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/06\/calcium-carbonate-grinding-mill-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">I. \u00c9quipements de broyage ultrafin : la base des fonctions de \u00ab remplissage \u00bb et de \u00ab rev\u00eatement \u00bb<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le carbonate de calcium est class\u00e9 en carbonate de calcium broy\u00e9 (GCC) et carbonate de calcium pr\u00e9cipit\u00e9 (PCC) selon les m\u00e9thodes de traitement. Le mat\u00e9riel de broyage joue un r\u00f4le central dans la production des deux types, en particulier pour le GCC.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Minerai de carbonate de calcium \u2500\u2500&gt; Concassage grossier \u2500\u2500&gt; Broyage ultrafin \u00e0 sec\/humide \u2500\u2500&gt; Classification des particules \u2500\u2500&gt; Charge\/pigment de couchage de haute qualit\u00e9 pour la fabrication du papier\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">1. Deux r\u00f4les principaux du carbonate de calcium dans la fabrication du papier<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Comme remplissage de papier :<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>CCG\u00a0:<\/strong> Le GCC est principalement utilis\u00e9 dans la fabrication du papier d&#039;impression, du papier \u00e0 \u00e9crire, du papier de bureau et du papier publicitaire. Le GCC standard (par exemple, 325 mesh, blancheur \u2265 92%, CaCO3 \u2265 98%) est g\u00e9n\u00e9ralement transform\u00e9 \u00e0 l&#039;aide de broyeurs Raymond ou de broyeurs \u00e0 cylindres verticaux. Le GCC ultrafin de qualit\u00e9 sup\u00e9rieure (sup\u00e9rieur \u00e0 1250 mesh) destin\u00e9 au carton n\u00e9cessite un traitement efficace par <strong>broyeurs \u00e0 anneaux secs<\/strong> ou <strong>lignes de production de classification par broyeur \u00e0 boulets<\/strong>.<\/li>\n\n\n\n<li><strong>PCC :<\/strong> En principe, le PCC peut \u00eatre utilis\u00e9 dans tous les types de papier. Il est principalement utilis\u00e9 comme charge dans les papiers haut de gamme, tels que le papier \u00e0 cigarettes, le papier pour impression jet d&#039;encre et le papier couch\u00e9 l\u00e9ger. Il est produit par pr\u00e9cipitation chimique, suivie d&#039;une d\u00e9sagglom\u00e9ration et d&#039;un classement.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>En tant que pigments de rev\u00eatement\u00a0:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Le GCC peut \u00eatre utilis\u00e9 pour le pr\u00e9-couchage et le couchage de finition. Le pr\u00e9-couchage n\u00e9cessite des particules inf\u00e9rieures \u00e0 2 \u03bcm repr\u00e9sentant plus de 75 % de la masse totale. Le couchage de finition requiert des particules inf\u00e9rieures \u00e0 2 \u03bcm pour atteindre 90 % \u00e0 100 % de la masse totale. Ces particules ultrafines am\u00e9liorent consid\u00e9rablement la brillance et la plan\u00e9it\u00e9 de la surface du papier.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/\">\u00c9quipement de broyage de noyaux<\/a> S\u00e9lection du carbonate de calcium de qualit\u00e9 papeti\u00e8re<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Pour r\u00e9pondre aux exigences strictes en mati\u00e8re de taille et de distribution des particules aux diff\u00e9rentes \u00e9tapes de la fabrication du papier, des lignes de broyage industrielles sp\u00e9cifiques ont \u00e9t\u00e9 d\u00e9velopp\u00e9es\u00a0:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><td><strong>Application<\/strong><\/td><td><strong>Exigences relatives \u00e0 la taille et \u00e0 la qualit\u00e9 des particules<\/strong><\/td><td><strong>\u00c9quipement de broyage ultrafin recommand\u00e9<\/strong><\/td><td><strong>Caract\u00e9ristiques et avantages du processus<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>GCC de qualit\u00e9 remplissage<\/strong><\/td><td>325\u20131250 mesh (d_90\u2264 10\u03bcm)<\/td><td><strong>Broyeur vertical \u00e0 cylindres \/ Broyeur \u00e0 rouleaux annulaires \/ Broyeur \u00e0 gros grains + Classificateur \u00e0 air<\/strong><\/td><td>Capacit\u00e9 \u00e9lev\u00e9e, faible consommation d&#039;\u00e9nergie, morphologie particulaire optimale. Id\u00e9al pour le traitement de charges \u00e0 grande \u00e9chelle.<\/td><\/tr><tr><td><strong>Qualit\u00e9 de pr\u00e9-rev\u00eatement GCC<\/strong><\/td><td>Particules de 2 \u03bcm \u226575%<\/td><td><strong><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/ball-mill\/\">Ligne de classification par broyeur \u00e0 boulets sec<\/a> \/ Broyeur \u00e0 agitation humide<\/strong><\/td><td>Granulom\u00e9trie homog\u00e8ne et bonne fluidit\u00e9. Convient \u00e0 la formulation de rev\u00eatements \u00e0 haute teneur en mati\u00e8res solides.<\/td><\/tr><tr><td><strong>Rev\u00eatement de finition de qualit\u00e9 GCC<\/strong><\/td><td>Particules &lt;2\u03bcm 90% -100\\%<\/td><td><strong>Broyeur \u00e0 billes horizontal \u00e0 agitation ultrafine par voie humide<\/strong><\/td><td>Utilise le broyage par abrasif pour le d\u00e9laminage micro- et submicronique. Le taux \u00e9lev\u00e9 de microparticules permet d&#039;obtenir une brillance de surface \u00e9lev\u00e9e.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System.webp\" alt=\"Syst\u00e8me de broyage \u00e0 billes et de classification du carbonate de calcium broy\u00e9\" class=\"wp-image-3779\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-300x225.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-768x576.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Ground-Calcium-Carbonate-Ball-Mill-Classifier-System-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Syst\u00e8me de broyage \u00e0 billes et de classification du carbonate de calcium broy\u00e9<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">II. <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/surface-modification\/\">\u00c9quipement de modification de surface<\/a>La cl\u00e9 de la compatibilit\u00e9 et de la fid\u00e9lisation<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le broyage ultrafin conf\u00e8re au carbonate de calcium une surface sp\u00e9cifique \u00e9lev\u00e9e et une texture fine. Cependant, le carbonate de calcium non modifi\u00e9 demeure un mat\u00e9riau inorganique et hydrophile. Il pr\u00e9sente une faible compatibilit\u00e9 et une faible adh\u00e9rence aux fibres v\u00e9g\u00e9tales organiques, elles aussi hydrophiles mais charg\u00e9es n\u00e9gativement en surface. Cette incompatibilit\u00e9 entra\u00eene une faible r\u00e9tention de la charge, une r\u00e9sistance m\u00e9canique r\u00e9duite et un ph\u00e9nom\u00e8ne de peluchage du papier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour r\u00e9soudre ces probl\u00e8mes, <strong>machines de modification continue \u00e0 haut rendement<\/strong> sont essentiels pour le rev\u00eatement chimique ou la modification de surface.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Principaux \u00e9quipements de modification et principes de fonctionnement<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Machine de modification de ruche \u00e0 trois anneaux \/ multicellulaires\u00a0:<\/strong> Un rotor \u00e0 grande vitesse g\u00e9n\u00e8re de fortes forces de cisaillement et centrifuges. La poudre de carbonate de calcium est fluidis\u00e9e et rapidement m\u00e9lang\u00e9e \u00e0 des agents modificateurs atomis\u00e9s (tels que le st\u00e9arate de sodium ou des agents de couplage) afin d&#039;obtenir un rev\u00eatement monocouche \u00e0 l&#039;\u00e9chelle mol\u00e9culaire.<\/li>\n\n\n\n<li><strong>Machine de modification continue \u00e0 turbine :<\/strong> Cet \u00e9quipement est adapt\u00e9 \u00e0 la modification \u00e0 sec \u00e0 haute vitesse du carbonate de calcium ultrafin. Les mat\u00e9riaux et les agents modificateurs entrent en collision \u00e0 haute fr\u00e9quence dans la chambre de la turbine. Cette conception permet un taux de rev\u00eatement \u00e9lev\u00e9 et emp\u00eache efficacement la r\u00e9agglom\u00e9ration des poudres ultrafines.<\/li>\n\n\n\n<li><strong>R\u00e9acteurs de modification par voie humide \/ Cuves agit\u00e9es :<\/strong> Des agents modificateurs (tels que le chitosane cationis\u00e9, la CMC ou l&#039;agent de couplage KH570) sont ajout\u00e9s directement \u00e0 la suspension pendant ou apr\u00e8s le broyage ultrafin en milieu humide. Ce proc\u00e9d\u00e9 permet le greffage ou le rev\u00eatement de surface en phase liquide.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Avantages li\u00e9s aux proc\u00e9d\u00e9s de modification et aux \u00e9quipements<\/h3>\n\n\n\n<h5 class=\"wp-block-heading\">(1) Proc\u00e9d\u00e9 de rev\u00eatement chimique<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Le rev\u00eatement chimique modifie les surfaces du GCC ou du PCC au sein d&#039;un syst\u00e8me r\u00e9actionnel. Par exemple, la complexation de poly\u00e9lectrolytes peut \u00eatre utilis\u00e9e dans un \u00e9quipement de modification pour d\u00e9poser du chitosane cationis\u00e9 et de la carboxym\u00e9thylcellulose (CMC) sur des surfaces de PCC.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R\u00f4le de l&#039;\u00e9quipement :<\/strong> Le m\u00e9lange forc\u00e9 et la pr\u00e9cipitation \u00e0 temp\u00e9rature contr\u00f4l\u00e9e permettent une distribution des particules plus concentr\u00e9e et uniforme, doublant ainsi la surface sp\u00e9cifique.<\/li>\n\n\n\n<li><strong>Performance de fabrication du papier :<\/strong> Le carbonate de calcium enrob\u00e9 reste stable dans les pores des fibres gr\u00e2ce \u00e0 un pi\u00e9geage m\u00e9canique et \u00e0 une adsorption collo\u00efdale. Ce processus augmente <strong>taux de r\u00e9tention<\/strong> et am\u00e9liore consid\u00e9rablement l&#039;indice de traction, la r\u00e9sistance \u00e0 l&#039;\u00e9clatement et la r\u00e9sistance au pliage.<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">(2) Proc\u00e9d\u00e9 de couplage chimique de surface<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Des agents de couplage (tels que le KH570) ou des tensioactifs organiques (tels que le st\u00e9arate de sodium) sont utilis\u00e9s pour modifier la poudre de carbonate de calcium\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R\u00f4le de l&#039;\u00e9quipement :<\/strong> Les machines de modification \u00e0 grande vitesse utilisent le cisaillement thermique pour appliquer uniform\u00e9ment du st\u00e9arate de sodium ou des silanols hydrolys\u00e9s (Si-OH) sur des surfaces de carbonate de calcium nano, formant des liaisons chimiques stables (telles que les liaisons Ca-O-Si).<\/li>\n\n\n\n<li><strong>Performance de fabrication du papier :<\/strong> Le carbonate de calcium modifi\u00e9 pr\u00e9sente une polarit\u00e9 r\u00e9duite, une \u00e9nergie de surface plus faible et une dispersibilit\u00e9 nettement sup\u00e9rieure. Appliqu\u00e9 dans les rev\u00eatements, il am\u00e9liore la r\u00e9sistance de surface, les propri\u00e9t\u00e9s hydrophobes et les performances de friction (il est couramment utilis\u00e9 pour les rev\u00eatements antid\u00e9rapants et les plateaux d&#039;emballage).<\/li>\n<\/ul>\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\/2026\/01\/Surface-Modification-of-Calcium-Carbonate.webp\" alt=\"Modification de surface du carbonate de calcium\" class=\"wp-image-3810\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-768x768.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/01\/Surface-Modification-of-Calcium-Carbonate-12x12.webp 12w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Modification de surface du carbonate de calcium<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">III. Synergie entre le traitement ultrafin et la modification<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Cr\u00e9ation d&#039;une blancheur exceptionnelle (polissage du d\u00e9collet\u00e9 + \u00e9limination des impuret\u00e9s)\u00a0:<\/strong>Les structures cristallines naturelles du carbonate de calcium poss\u00e8dent intrins\u00e8quement une blancheur \u00e9lev\u00e9e. Un broyage pr\u00e9cis avec <strong>broyeurs \u00e0 agitation ultra-fine \u00e0 voie humide<\/strong> ou <strong>classificateurs \u00e0 broyeur \u00e0 boulets<\/strong> Ce proc\u00e9d\u00e9 \u00e9vite la contamination par le fer tout en r\u00e9duisant la taille des particules \u00e0 des dimensions optimales pour la diffusion de la lumi\u00e8re (environ 0,2 \u00e0 0,5 \u00b5m). Il maximise ainsi la r\u00e9flexion de la lumi\u00e8re visible, am\u00e9liorant significativement la blancheur et l&#039;opacit\u00e9 du papier.<\/li>\n\n\n\n<li><strong>Obtention d&#039;une surface tr\u00e8s lisse et brillante (particules ultrafines + anti-agglom\u00e9ration)\u00a0:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Microparticules trait\u00e9es par <strong>\u00e9quipement de broyage ultra-fin<\/strong> (&lt;2\u03bcm &gt; 90%) remplissent les espaces entre les fibres, formant une couche de rev\u00eatement ultra-mince et plate sur la surface du papier.<\/li>\n\n\n\n<li>Apr\u00e8s r\u00e9duction de l&#039;\u00e9nergie de surface et traitement de rev\u00eatement dans un \u00e9quipement de modification, le carbonate de calcium ultrafin \u00e9vite la r\u00e9agglom\u00e9ration secondaire dans les syst\u00e8mes de couchage. Il conserve une bonne fluidit\u00e9 et une teneur \u00e9lev\u00e9e en mati\u00e8res solides. Par cons\u00e9quent, le papier pr\u00e9sente un excellent lissage et un brillant \u00e9lev\u00e9 apr\u00e8s calandrage, tout en r\u00e9duisant le poudrage et le peluchage lors de l&#039;impression.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Les \u00e9quipements de broyage ultrafin permettent un contr\u00f4le pr\u00e9cis de la granulom\u00e9trie, tandis que les \u00e9quipements de modification modifient les caract\u00e9ristiques de surface. Ensemble, ils permettent au carbonate de calcium de d\u00e9ployer pleinement ses propri\u00e9t\u00e9s physico-chimiques, ce qui en fait une mati\u00e8re premi\u00e8re min\u00e9rale de base, de haute qualit\u00e9 et \u00e9conomique, pour l&#039;industrie papeti\u00e8re.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"360\" height=\"360\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-4010\" style=\"width:150px;height:150px\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen.webp 360w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2026\/07\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u00ab Merci de votre lecture. J\u2019esp\u00e8re que cet article vous sera utile. N\u2019h\u00e9sitez pas \u00e0 laisser un commentaire ci-dessous. Pour toute question, vous pouvez \u00e9galement contacter le service client en ligne de Zelda. \u00bb<\/p>\n<cite>                                                                                                                                                  \u2014 Publi\u00e9 par Emily Chen<\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\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\/4019#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\/4019#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.6\" \/><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>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Dans l&#039;industrie papeti\u00e8re, le carbonate de calcium \u2013 notamment le carbonate de calcium broy\u00e9 (GCC) et le carbonate de calcium pr\u00e9cipit\u00e9 (PCC) \u2013 est une mati\u00e8re premi\u00e8re essentielle pour am\u00e9liorer la qualit\u00e9 du papier et r\u00e9duire les co\u00fbts de production. Il am\u00e9liore la blancheur, l&#039;opacit\u00e9 et le lissage. Il am\u00e9liore \u00e9galement l&#039;absorption de l&#039;encre et l&#039;imprimabilit\u00e9. Cependant, le calcaire brut ou le carbonate de calcium grossier ne peuvent \u00eatre utilis\u00e9s directement dans la fabrication de papier de haute qualit\u00e9.<\/p>","protected":false},"author":1,"featured_media":3872,"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":"","ast-disable-related-posts":"","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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