{"id":12772,"date":"2025-08-07T05:50:35","date_gmt":"2025-08-07T05:50:35","guid":{"rendered":"https:\/\/tenessy.com\/?p=12772"},"modified":"2025-08-12T02:42:59","modified_gmt":"2025-08-12T02:42:59","slug":"hydroxyethyl-cellulose-powder-in-textile-printing","status":"publish","type":"post","link":"https:\/\/tenessy.com\/fr\/poudre-dhydroxyethylcellulose-dans-limpression-textile\/","title":{"rendered":"Poudre d'hydroxy\u00e9thylcellulose dans l'impression textile"},"content":{"rendered":"
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I.Qu'est-ce que la poudre d'hydroxy\u00e9thylcellulose ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tHydroxy\u00e9thylcellulose (HEC)\u00a0<\/a>Le HEC est un \u00e9ther de cellulose non ionique qui se disperse et se dissout facilement dans l'eau pour produire des solutions \u00e0 haute viscosit\u00e9. Le HEC est utilis\u00e9 comme modificateur de viscosit\u00e9 et de rh\u00e9ologie, comme collo\u00efde protecteur, comme agent de r\u00e9tention d'eau, comme stabilisateur et comme agent de suspension, en particulier dans les applications n\u00e9cessitant des mat\u00e9riaux non ioniques. Le produit a un degr\u00e9 de substitution plus \u00e9lev\u00e9 et plus homog\u00e8ne, ce qui am\u00e9liore la r\u00e9sistance aux enzymes.\n\nL'hydroxy\u00e9thylcellulose joue un r\u00f4le tr\u00e8s important dans le processus de fabrication des produits alimentaires. l'impression et la teinture de textiles <\/a>L'industrie de l'imprimerie est en plein essor, notamment dans le domaine de l'impression, qui est l'une de ses principales applications.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Produit\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Part de la formule de l'hydroxy\u00e9thylcellulose (HEC) dans l'impression et la teinture des textiles :<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Sc\u00e9narios d'application<\/p><\/td>

Part HEC (wt%)<\/p><\/td>

Ingr\u00e9dients auxiliaires<\/p><\/td>

Description du r\u00f4le<\/p><\/td><\/tr>

P\u00e2te d'impression \u00e0 base de colorants r\u00e9actifs<\/p><\/td>

0.5%-2.0%<\/p><\/td>

Ur\u00e9e (5%-10%), bicarbonate de sodium (1%-3%)<\/p><\/td>

Apporte de la viscosit\u00e9, emp\u00eache la migration des colorants et am\u00e9liore le rendement de la couleur.<\/p><\/td><\/tr>

P\u00e2te d'impression de peinture<\/p><\/td>

0.3%-1.5%<\/p><\/td>

Liant (20%-30%), agent de r\u00e9ticulation (1%-2%)<\/p><\/td>

\u00c9paississement et stabilisation de la dispersion du pigment, am\u00e9lioration du toucher.<\/p><\/td><\/tr>

Impression \u00e0 colorant dispers\u00e9<\/p><\/td>

1.0%-2.5%<\/p><\/td>

Agent dispersant (1%-2%), agent d'ajustement du pH<\/p><\/td>

Convient \u00e0 l'impression du polyester, bonne stabilit\u00e9 \u00e0 haute temp\u00e9rature.<\/p><\/td><\/tr>

Agent de dimensionnement<\/p><\/td>

0.2%-1.0%<\/p><\/td>

PVA (3%-5%), \u00e9mulsion de cire (1%-2%)<\/p><\/td>

Augmentation de la r\u00e9sistance du fil, r\u00e9duction des ruptures de tissage.<\/p><\/td><\/tr>

Finition du rev\u00eatement<\/p><\/td>

0.5%-1.5%<\/p><\/td>

R\u00e9sine acrylique (10%-20%), assouplissant<\/p><\/td>

Forme un film uniforme, am\u00e9liore la fonctionnalit\u00e9 du tissu.<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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II. Principales utilisations de la poudre d'hydroxy\u00e9thylcellulose dans l'industrie de l'impression textile<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Collage\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1. \u00e9paississement<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le HEC est un ingr\u00e9dient cl\u00e9 dans la pr\u00e9paration des p\u00e2tes d'impression aqueuses. Sa principale fonction est d'\u00e9paissir la p\u00e2te de couleur d'impression pour lui donner une viscosit\u00e9 (g\u00e9n\u00e9ralement de l'ordre de quelques dizaines de milliers de centipoises) adapt\u00e9e au fonctionnement des machines d'impression.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2. contr\u00f4le de la rh\u00e9ologie<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Les solutions HEC ont des propri\u00e9t\u00e9s rh\u00e9ologiques pseudoplastiques (amincissement par cisaillement). Cela signifie qu'en cas de stockage et de cisaillement \u00e9lev\u00e9 (par exemple, agitation, pompage), la viscosit\u00e9 est faible, ce qui facilite la manipulation et le transport.<\/p>

Lorsque le cisaillement est faible (par exemple, lorsque la raclette passe sur l'\u00e9cran d'impression et repose sur le tissu), la viscosit\u00e9 revient rapidement \u00e0 un niveau \u00e9lev\u00e9. Cela permet d'emp\u00eacher efficacement l'infiltration de la p\u00e2te color\u00e9e, de garantir que le motif d'impression est clair, que les lignes sont fines et qu'il n'y a pas de ph\u00e9nom\u00e8ne d'\"infiltration\" ou de \"fonte\".<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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3. r\u00e9tention d'eau<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le HEC est extr\u00eamement hydrophile et retient l'eau. Il retient efficacement l'eau dans la p\u00e2te d'impression, l'emp\u00eachant de migrer trop rapidement dans les fibres ou vers les bords. C'est la cl\u00e9 pour obtenir des motifs clairs, de la vivacit\u00e9 et une grande finesse.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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4. stabilit\u00e9 de la suspension<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Il contribue \u00e0 la mise en suspension uniforme des colorants, des particules de pigment et d'autres composants insolubles (tels que les charges, les auxiliaires, etc.) dans la p\u00e2te d'impression afin d'emp\u00eacher la pr\u00e9cipitation et de garantir l'uniformit\u00e9 et la stabilit\u00e9 de la p\u00e2te d'impression.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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III. Colorants et proc\u00e9d\u00e9s applicables \u00e0 la poudre d'hydroxy\u00e9thylcellulose<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Impression\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1. impression par colorants r\u00e9actifs<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le HEC est l'un des \u00e9paississants les plus couramment utilis\u00e9s et les plus efficaces dans les p\u00e2tes d'impression \u00e0 base de colorants r\u00e9actifs (souvent compos\u00e9es d'autres \u00e9paississants tels que l'alginate de sodium). Il a une faible affinit\u00e9 pour les colorants r\u00e9actifs, les colorants sont faciles \u00e0 transf\u00e9rer de la p\u00e2te \u00e0 la fibre et faciles \u00e0 \u00e9liminer apr\u00e8s le traitement, sans affecter le toucher du tissu et la blancheur du fond blanc.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2. impression de colorants dispers\u00e9s<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dans la p\u00e2te d'impression par transfert du polyester et d'autres fibres synth\u00e9tiques, le HEC est utilis\u00e9 comme \u00e9paississant et support, ce qui permet de disperser uniform\u00e9ment les colorants et de les sublimer efficacement pendant le transfert de chaleur.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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3. impression de rev\u00eatements<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Alors que les \u00e9paississants synth\u00e9tiques, tels que les polyacryliques, sont plus couramment utilis\u00e9s dans l'impression de rev\u00eatements, le HEC peut \u00eatre utilis\u00e9 dans certaines formulations d'impression de rev\u00eatements, en particulier lorsqu'une sensation plus douce est souhait\u00e9e ou lors de la composition avec d'autres syst\u00e8mes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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IV. Avantages de la poudre d'hydroxy\u00e9thylcellulose<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1. rendement \u00e9lev\u00e9 des couleurs<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Faible affinit\u00e9 pour les colorants (en particulier les colorants r\u00e9actifs), transfert complet des colorants.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2. facile \u00e0 laver<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Moins de r\u00e9sidus apr\u00e8s le lavage, tissu doux au toucher, moins de taches sur le fond blanc.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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3. bonne compatibilit\u00e9<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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En tant que polym\u00e8re non ionique, il est compatible avec la plupart des colorants et auxiliaires ioniques et n'est pas facilement affect\u00e9 par la concentration d'\u00e9lectrolyte (sel) dans le syst\u00e8me, avec une bonne stabilit\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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4. formation des films<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le film de p\u00e2te ainsi form\u00e9 permet de fixer efficacement les colorants\/pigments pendant le s\u00e9chage.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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5. naturel\/renouvelable<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tLe HEC est d\u00e9riv\u00e9 de la cellulose, ce qui le rend plus durable<\/a> que les \u00e9paississants enti\u00e8rement synth\u00e9tiques.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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V. 6 Facteurs d\u00e9terminants des prix de la poudre d'hydroxy\u00e9thylcellulose<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1. co\u00fbts des mati\u00e8res premi\u00e8res<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"tenessy-coton-mati\u00e8re\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Coton \u00e0 fibres courtes\/p\u00e2te \u00e0 papier : 60% des co\u00fbts de production, directement affect\u00e9s par la volatilit\u00e9 des contrats \u00e0 terme sur l'agriculture et la p\u00e2te \u00e0 papier.<\/p>

Oxyde d'\u00e9thyl\u00e8ne : cha\u00eene de conduction p\u00e9trole brut \u2192 \u00e9thyl\u00e8ne \u2192 oxyde d'\u00e9thyl\u00e8ne, les conflits g\u00e9opolitiques font grimper 25%.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2. param\u00e8tres techniques<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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La haute viscosit\u00e9 (>10 000 mPa-s) est 35% plus ch\u00e8re que la basse viscosit\u00e9 en raison de la forte demande en s\u00e9rigraphie et de la consommation \u00e9lev\u00e9e d'\u00e9nergie pour la production.<\/p>

Degr\u00e9 de substitution (DS) : DS=2,0-2,5 est le plus performant, mais le contr\u00f4le du processus est difficile, le faible taux de rendement augmente le co\u00fbt de 20%.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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3.Barri\u00e8re verte<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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La certification REACH\/ECOSAR de l'UE augmente les co\u00fbts de 30%, les exigences en mati\u00e8re de processus sans chlore font de l'HEC un produit \u00e9cologique de premi\u00e8re qualit\u00e9 15%.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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4. capacit\u00e9 de production et jeu r\u00e9gional<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Les marques import\u00e9es monopolisent le march\u00e9 haut de gamme et disposent d'un fort pouvoir de fixation des prix ; la guerre des prix au niveau national tire vers le bas le march\u00e9 moyen de gamme.<\/p>

Le co\u00fbt de la logistique dans le sud-ouest de la Chine est plus \u00e9lev\u00e9 que dans l'est du pays.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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5. it\u00e9ration du processus<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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L'apparition de l'impression num\u00e9rique pour promouvoir la demande de HEC \u00e0 faible viscosit\u00e9 et r\u00e9sistant \u00e0 la migration a augment\u00e9 de 22%, soit une prime de 40% ; les HEC traditionnels \u00e0 viscosit\u00e9 moyenne, en raison de la surcapacit\u00e9, ont chut\u00e9 de 5% par an.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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6. la concurrence des produits de substitution<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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L'alginate de sodium co\u00fbte 30% moins cher, mais sa r\u00e9sistance \u00e0 l'\u00e9lectrolyte est m\u00e9diocre ; le polyacrylate 20% est moins cher, mais il affecte le toucher du tissu.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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VI. Suggestions d'achat pour les entreprises d'impression et de teinture de textiles<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Des solutions rentables <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Impression normale : Choisir le HEC national de viscosit\u00e9 moyenne + l'alginate de sodium compos\u00e9 (r\u00e9duire le co\u00fbt de 10%-15%).<\/p>

Commande \u00e0 l'exportation : sugg\u00e9rer un mod\u00e8le import\u00e9 HEC ou un mod\u00e8le national haut de gamme.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Conseils pour la r\u00e9duction des co\u00fbts<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tSigner des accords-cadres annuels avec les fournisseurs pour verrouiller le risque de fluctuation des prix.\n\nSe concentrer sur les d\u00e9riv\u00e9s cellulosiques renouvelables (tels que carboxym\u00e9thylcellulose CMC<\/a>), une partie du processus peut remplacer le HEC (r\u00e9duction des co\u00fbts de 20%).\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Indicateurs de v\u00e9rification de la qualit\u00e9 <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u00c9l\u00e9ments obligatoires :<\/strong><\/p>

Viscosit\u00e9 de la solution 1% (25\u2103)<\/p>

Transmittance (refl\u00e9tant la teneur en impuret\u00e9s)<\/p>

Degr\u00e9 de substitution (DS=1,8-2,5 est bon)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

\n\t\t\t\t
\n\t\t\t\t\t

VII. Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Dans le domaine de l'impression et de la teinture des textiles, l'application la plus importante de la poudre d'hydroxy\u00e9thylcellulose est celle d'un \u00e9paississant de p\u00e2te d'impression de haute performance, en particulier pour l'impression par colorants r\u00e9actifs qui exige des motifs fins, des contours clairs et des couleurs vives. Son excellente rh\u00e9ologie pseudoplastique, sa forte capacit\u00e9 de r\u00e9tention d'eau, sa faible affinit\u00e9 pour les colorants, sa bonne compatibilit\u00e9 et son lavage facile en font un mat\u00e9riau cl\u00e9 indispensable \u00e0 la production d'impressions de haute qualit\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Dans le domaine de l'impression et de la teinture des textiles, l'application la plus importante de la poudre d'hydroxy\u00e9thylcellulose est l'\u00e9paississement de la p\u00e2te d'impression \u00e0 haute performance.<\/p>","protected":false},"author":1,"featured_media":9258,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[35],"tags":[],"class_list":["post-12772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"\nHydroxyethyl Cellulose Powder in Textile Printing - HPMC|HEMC|HEC|RDP Manufacturer-TENESSY<\/title>\n<meta name=\"description\" content=\"Hydroxyethyl cellulose plays a very important role in the textile printing and dyeing industry.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tenessy.com\/fr\/poudre-dhydroxyethylcellulose-dans-limpression-textile\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydroxyethyl Cellulose Powder in Textile Printing - 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