{"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\/pt\/po-de-hidroxietilcelulose-em-impressao-textil\/","title":{"rendered":"P\u00f3 de hidroxietilcelulose na impress\u00e3o t\u00eaxtil"},"content":{"rendered":"
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I. O que \u00e9 o p\u00f3 de hidroxietilcelulose?<\/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\tHidroxietilcelulose (HEC)\u00a0<\/a>\u00e9 um \u00e9ter de celulose n\u00e3o i\u00f4nico. O HEC \u00e9 usado como modificador de viscosidade e reologia, coloide protetor, agente de reten\u00e7\u00e3o de \u00e1gua, estabilizador e agente de suspens\u00e3o, especialmente nas aplica\u00e7\u00f5es em que s\u00e3o necess\u00e1rios materiais n\u00e3o i\u00f4nicos. O produto tem um grau de substitui\u00e7\u00e3o maior e mais homog\u00eaneo, o que melhora a resist\u00eancia enzim\u00e1tica.\n\nA hidroxietilcelulose desempenha um papel muito importante na impress\u00e3o e tingimento de tecidos <\/a>especialmente no campo da impress\u00e3o, que \u00e9 uma de suas principais aplica\u00e7\u00f5es.\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\"HEC-Produto\"\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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Participa\u00e7\u00e3o da f\u00f3rmula de hidroxietilcelulose (HEC) em impress\u00e3o e tingimento de t\u00eaxteis:<\/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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Cen\u00e1rios de aplicativos<\/p><\/td>

Participa\u00e7\u00e3o da HEC (wt%)<\/p><\/td>

Ingredientes auxiliares<\/p><\/td>

Descri\u00e7\u00e3o da fun\u00e7\u00e3o<\/p><\/td><\/tr>

Pasta de impress\u00e3o com corantes reativos<\/p><\/td>

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

Ureia (5%-10%), bicarbonato de s\u00f3dio (1%-3%)<\/p><\/td>

Proporciona viscosidade, evita a migra\u00e7\u00e3o de corantes e melhora o rendimento da cor.<\/p><\/td><\/tr>

Pasta de impress\u00e3o de tinta<\/p><\/td>

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

Aglutinante (20%-30%), agente de reticula\u00e7\u00e3o (1%-2%)<\/p><\/td>

Espessamento e estabiliza\u00e7\u00e3o da dispers\u00e3o do pigmento, melhorando a sensa\u00e7\u00e3o.<\/p><\/td><\/tr>

Impress\u00e3o com corante disperso<\/p><\/td>

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

Agente dispersante (1%-2%), agente de ajuste de pH<\/p><\/td>

Adequado para impress\u00e3o em poli\u00e9ster, boa estabilidade sob altas temperaturas.<\/p><\/td><\/tr>

Agente de dimensionamento<\/p><\/td>

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

PVA (3%-5%), emuls\u00e3o de cera (1%-2%)<\/p><\/td>

Aumenta a resist\u00eancia do fio e reduz a quebra da tecelagem.<\/p><\/td><\/tr>

Acabamento do revestimento<\/p><\/td>

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

Resina acr\u00edlica (10%-20%), amaciante<\/p><\/td>

Forma uma pel\u00edcula uniforme e melhora a funcionalidade do tecido.<\/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. Principais usos do p\u00f3 de hidroxietilcelulose na ind\u00fastria de impress\u00e3o t\u00eaxtil<\/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\"Colagem\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. espessamento<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O HEC \u00e9 um ingrediente essencial na prepara\u00e7\u00e3o de pastas de impress\u00e3o aquosas. Sua principal fun\u00e7\u00e3o \u00e9 engrossar a pasta de cores de impress\u00e3o at\u00e9 atingir uma viscosidade (geralmente na faixa de algumas dezenas de milhares de centipoise) adequada para a opera\u00e7\u00e3o da m\u00e1quina de impress\u00e3o.<\/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. controle de reologia<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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As solu\u00e7\u00f5es de HEC t\u00eam propriedades reol\u00f3gicas pseudopl\u00e1sticas (dilui\u00e7\u00e3o por cisalhamento). Isso significa que, no armazenamento e sob alto cisalhamento (por exemplo, agita\u00e7\u00e3o, bombeamento), a viscosidade \u00e9 baixa, o que facilita o manuseio e o transporte.<\/p>

Com baixo cisalhamento (por exemplo, quando o rodo passa sobre a tela de impress\u00e3o e repousa sobre o tecido), a viscosidade retorna rapidamente a um n\u00edvel elevado. Isso pode evitar efetivamente a infiltra\u00e7\u00e3o da pasta de cor, para garantir que o padr\u00e3o de impress\u00e3o seja claro, com linhas finas, e n\u00e3o produza o fen\u00f4meno de \"infiltra\u00e7\u00e3o\" ou \"derretimento\".<\/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. reten\u00e7\u00e3o de \u00e1gua<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O HEC \u00e9 extremamente hidrof\u00edlico e retentor de \u00e1gua. Ele bloqueia efetivamente a \u00e1gua na pasta de impress\u00e3o, impedindo que ela migre muito rapidamente para as fibras ou para as bordas. Esse \u00e9 o segredo para obter padr\u00f5es claros, vivacidade e alta finura.<\/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. estabilidade da suspens\u00e3o<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Ele ajuda a suspender uniformemente os corantes, as part\u00edculas de pigmento e outros componentes insol\u00faveis (como cargas, auxiliares etc.) na pasta de impress\u00e3o para evitar a precipita\u00e7\u00e3o e garantir a uniformidade e a estabilidade da pasta de impress\u00e3o.<\/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.Corantes e processos aplic\u00e1veis ao p\u00f3 de hidroxietilcelulose<\/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\"Impress\u00e3o\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. impress\u00e3o com corante reativo<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O HEC \u00e9 um dos espessantes mais comumente usados e eficazes na pasta de impress\u00e3o de corante reativo (geralmente composto com outros espessantes, como o alginato de s\u00f3dio). Ele tem baixa afinidade com corantes reativos, os corantes s\u00e3o f\u00e1ceis de transferir da pasta para a fibra e f\u00e1ceis de lavar ap\u00f3s o tratamento, sem afetar a sensa\u00e7\u00e3o do tecido e a brancura do fundo branco.<\/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. impress\u00e3o com corante disperso<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Na pasta de impress\u00e3o por transfer\u00eancia de poli\u00e9ster e outras fibras sint\u00e9ticas, o HEC \u00e9 usado como espessante e transportador, o que ajuda a dispersar os corantes uniformemente e a sublim\u00e1-los de forma eficaz durante a transfer\u00eancia de calor.<\/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. impress\u00e3o de revestimentos<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Embora os espessantes sint\u00e9ticos, como os poliacr\u00edlicos, sejam mais comumente usados na impress\u00e3o de revestimentos, o HEC pode ser usado em algumas formula\u00e7\u00f5es de impress\u00e3o de revestimentos, especialmente quando se deseja uma sensa\u00e7\u00e3o mais suave ou quando se comp\u00f5e com outros sistemas.<\/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. Vantagens do p\u00f3 de hidroxietilcelulose<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1. alto rendimento de cores<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Baixa afinidade por corantes (especialmente corantes reativos), transfer\u00eancia total de corantes.<\/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. f\u00e1cil de lavar<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Menos res\u00edduos ap\u00f3s a lavagem, sensa\u00e7\u00e3o de tecido macio, menos manchas no fundo branco.<\/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. boa compatibilidade<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Por ser um pol\u00edmero n\u00e3o i\u00f4nico, ele \u00e9 compat\u00edvel com a maioria dos corantes e auxiliares i\u00f4nicos e n\u00e3o \u00e9 facilmente afetado pela concentra\u00e7\u00e3o de eletr\u00f3lito (sal) no sistema, com boa estabilidade.<\/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. forma\u00e7\u00e3o de filme<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A pel\u00edcula de pasta formada \u00e9 eficaz na fixa\u00e7\u00e3o de corantes\/pigmentos durante a secagem.<\/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. natural\/renov\u00e1vel<\/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\tO HEC \u00e9 derivado da celulose, o que o torna mais sustent\u00e1vel<\/a> do que os espessantes totalmente sint\u00e9ticos.\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 Fatores que influenciam os pre\u00e7os do p\u00f3 de hidroxietilcelulose<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1. custos de mat\u00e9ria-prima<\/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-cotton-raw-material\"\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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Algod\u00e3o de fibra curta\/polpa de madeira: 60% dos custos de produ\u00e7\u00e3o, diretamente afetados pela volatilidade dos futuros de agricultura e polpa.<\/p>

\u00d3xido de etileno: cadeia de condu\u00e7\u00e3o de petr\u00f3leo bruto \u2192 etileno \u2192 \u00f3xido de etileno, conflitos geopol\u00edticos aumentam o 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. par\u00e2metros t\u00e9cnicos<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A alta viscosidade (>10.000 mPa-s) \u00e9 mais cara do que a baixa viscosidade devido \u00e0 alta demanda por impress\u00e3o em tela e ao alto consumo de energia para a produ\u00e7\u00e3o.<\/p>

Grau de substitui\u00e7\u00e3o (DS): DS=2,0-2,5 \u00e9 o melhor desempenho, mas o controle do processo \u00e9 dif\u00edcil, a baixa taxa de rendimento aumenta o custo em 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. barreira verde<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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A certifica\u00e7\u00e3o EU REACH\/ECOSAR aumenta os custos em 30%, os requisitos de processo sem cloro tornam o HEC premium ambientalmente correto 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. capacidade de produ\u00e7\u00e3o e jogo regional<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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As marcas importadas monopolizam o mercado de alto padr\u00e3o, com forte poder de precifica\u00e7\u00e3o; a guerra de pre\u00e7os dom\u00e9stica puxa para baixo o mercado de m\u00e9dio padr\u00e3o.<\/p>

O custo de log\u00edstica no sudoeste da China \u00e9 mais alto do que no leste da China.<\/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. itera\u00e7\u00e3o do processo<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O surto de impress\u00e3o digital para promover a demanda de HEC resistente \u00e0 migra\u00e7\u00e3o e de baixa viscosidade aumentou em 22%, um pr\u00eamio de 40%; o HEC tradicional de m\u00e9dia viscosidade devido ao excesso de capacidade caiu 5% anualmente.<\/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. concorr\u00eancia de substitutos<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O custo do alginato de s\u00f3dio \u00e9 30% menor, mas a resist\u00eancia a eletr\u00f3litos \u00e9 ruim; o poliacrilato \u00e9 20% mais barato, mas afeta a sensa\u00e7\u00e3o do tecido.<\/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. Sugest\u00f5es de compras para empresas de impress\u00e3o e tingimento de tecidos<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Solu\u00e7\u00f5es econ\u00f4micas <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Impress\u00e3o regular: Escolha HEC de viscosidade m\u00e9dia nacional + alginato de s\u00f3dio composto (reduza o custo em 10%-15%).<\/p>

Pedido de exporta\u00e7\u00e3o: sugerir HEC importado ou modelo dom\u00e9stico de alta qualidade.<\/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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Dicas de redu\u00e7\u00e3o de custos<\/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\tAssinar contratos-quadro anuais com fornecedores para garantir o risco de flutua\u00e7\u00f5es de pre\u00e7os.\n\nConcentre-se em derivados de celulose renov\u00e1veis (como carboximetilcelulose CMC<\/a>), parte do processo pode substituir o HEC (redu\u00e7\u00e3o de custo 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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Indicadores de verifica\u00e7\u00e3o de qualidade <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Itens obrigat\u00f3rios:<\/strong><\/p>

Viscosidade da solu\u00e7\u00e3o 1% (25\u2103)<\/p>

Transmit\u00e2ncia (refletindo o teor de impureza)<\/p>

Grau de substitui\u00e7\u00e3o (DS=1,8-2,5 \u00e9 bom)<\/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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VII. Conclus\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Na impress\u00e3o e no tingimento de t\u00eaxteis, a aplica\u00e7\u00e3o mais importante do p\u00f3 de hidroxietilcelulose \u00e9 como espessante de pasta de impress\u00e3o de alto desempenho, especialmente para impress\u00e3o de corante reativo que exige padr\u00f5es finos, contornos claros e cores brilhantes. Sua excelente reologia pseudopl\u00e1stica, forte capacidade de reten\u00e7\u00e3o de \u00e1gua, baixa afinidade com corantes, boa compatibilidade e f\u00e1cil lavagem fazem dele um material essencial indispens\u00e1vel para a produ\u00e7\u00e3o de estampas de alta qualidade.<\/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":"

Na impress\u00e3o e no tingimento de tecidos, a aplica\u00e7\u00e3o mais importante do p\u00f3 de hidroxietilcelulose \u00e9 como espessante de pasta de impress\u00e3o de alto desempenho.<\/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\/pt\/po-de-hidroxietilcelulose-em-impressao-textil\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydroxyethyl Cellulose Powder in Textile Printing - 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