{"id":5744,"date":"2022-11-22T14:20:50","date_gmt":"2022-11-22T14:20:50","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=5744"},"modified":"2026-08-25T08:50:56","modified_gmt":"2026-08-25T08:50:56","slug":"uv-ink-and-eb-resin","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/uv-ink-and-eb-resin\/","title":{"rendered":"UV Ink vs EB Ink Resins: Cure Chemistry &#038; Selection"},"content":{"rendered":"<p><strong>Resposta r\u00e1pida:<\/strong> UV and electron-beam inks can use related acrylate chemistry, but they do not initiate cure in the same way. UV systems require a light-source and photoinitiator match; EB systems use electron energy and normally do not need a photoinitiator.<\/p>\n<p>A tinta \u00e9 um dos principais consum\u00edveis do setor de impress\u00e3o e um fator importante na reprodu\u00e7\u00e3o de originais. Os fabricantes de tintas tamb\u00e9m est\u00e3o constantemente aprimorando a capacidade de impress\u00e3o das tintas. Os aglutinantes s\u00e3o o componente fluido das tintas. Com o desenvolvimento cont\u00ednuo do setor moderno, novos tipos de aglutinantes de tinta est\u00e3o sendo usados constantemente. Desde os aglutinantes originais, com \u00f3leos vegetais e resinas naturais como componentes principais, at\u00e9 os atuais, com resinas sint\u00e9ticas como componentes principais. O setor de tintas tem se desenvolvido aos trancos e barrancos. Entre as resinas sint\u00e9ticas dispon\u00edveis, as resinas acr\u00edlicas s\u00e3o as mais usadas e podem ser encontradas em produtos como tintas de cura ultravioleta (uv), tintas de cura por feixe de el\u00e9trons (eb) e tintas \u00e0 base de \u00e1gua. As fun\u00e7\u00f5es e os mecanismos de rea\u00e7\u00e3o das resinas acr\u00edlicas nas tintas acima s\u00e3o diferentes, e os exemplos a seguir s\u00e3o apresentados. I. Aplica\u00e7\u00e3o de resina acr\u00edlica em tinta uv e tinta eb A tinta uv \u00e9 uma tinta que muda de l\u00edquido para s\u00f3lido sob certa irradia\u00e7\u00e3o de luz ultravioleta. A tinta uv tem ampla capacidade de impress\u00e3o e pode ser impressa por offset, flexografia ou serigrafia. Ela tem bom desempenho de impress\u00e3o na maioria dos substratos, e a tinta seca rapidamente, com menos compostos org\u00e2nicos vol\u00e1teis (voc), e tem impacto no meio ambiente. Os produtos impressos s\u00e3o pequenos, com forte solidez de ades\u00e3o, boa resist\u00eancia \u00e0 abras\u00e3o, alto brilho e outras vantagens. Nos \u00faltimos anos, a tinta UV em impress\u00e3o offset, serigrafia e impress\u00e3o flexogr\u00e1fica \u00e9 amplamente utilizada, sua participa\u00e7\u00e3o no mercado tem uma alta taxa de crescimento anual e excede em muito outros tipos de tintas de impress\u00e3o. O mecanismo de rea\u00e7\u00e3o da tinta UV \u00e9 a polimeriza\u00e7\u00e3o radical livre ou a polimeriza\u00e7\u00e3o cati\u00f4nica. A estrutura do pr\u00e9-pol\u00edmero de resina na f\u00f3rmula e a atividade dos grupos funcionais determinam a velocidade da rea\u00e7\u00e3o geral de polimeriza\u00e7\u00e3o de liga\u00e7\u00e3o cruzada.<\/p>\n<p>&nbsp;<\/p>\n<p>Atualmente, a resina usada para fabricar tinta UV \u00e9 principalmente a resina acr\u00edlica. As resinas acr\u00edlicas t\u00eam liga\u00e7\u00e3o dupla insaturada \"c = c\". Essa insatura\u00e7\u00e3o ativa o iniciador da resina acr\u00edlica para tinta sob irradia\u00e7\u00e3o UV, o que desencadeia a cadeia. A rea\u00e7\u00e3o de polimeriza\u00e7\u00e3o em resinas s\u00f3lidas, amplamente utilizadas na fabrica\u00e7\u00e3o de tintas UV. As principais resinas acr\u00edlicas usadas no setor de tintas s\u00e3o resinas de acrilato de ep\u00f3xi, resinas de acrilato de uretano etc. A resina ep\u00f3xi acrilada \u00e9 produzida pela rea\u00e7\u00e3o direta da resina ep\u00f3xi e do \u00e1cido acr\u00edlico. Ela tem as caracter\u00edsticas de velocidade de cura r\u00e1pida, alta dureza da pel\u00edcula de tinta e bom brilho. A tinta UV que usa resina ep\u00f3xi acrilato pode atingir uma velocidade de cura mais r\u00e1pida do produto. Al\u00e9m disso, h\u00e1 uma resina ep\u00f3xi acrilato, que \u00e9 uma resina ep\u00f3xi acrilato de \u00f3leo obtida pela rea\u00e7\u00e3o de \u00f3leo ep\u00f3xi de soja e \u00f3leo ep\u00f3xi de linha\u00e7a com \u00e1cido acr\u00edlico. Ela tem baixa viscosidade, boa fluidez e boa umecta\u00e7\u00e3o e dispers\u00e3o de pigmentos. No entanto, a velocidade de cura \u00e9 lenta e o filme \u00e9 macio, por isso \u00e9 geralmente usado apenas como resina auxiliar em tinta UV. A resina de acrilato de poli\u00e9ster \u00e9 produzida pela desidrata\u00e7\u00e3o por esterifica\u00e7\u00e3o direta do poliol de poli\u00e9ster e do \u00e1cido acr\u00edlico, que tem boa ades\u00e3o aos materiais. Amplamente utilizada em tintas UV. O baixo peso molecular pode ser usado como diluente, o alto peso molecular pode ser usado como resina principal, mas a resina de acrilato de poli\u00e9ster tem alta viscosidade. Se modificada com \u00e1cido graxo, n\u00e3o s\u00f3 pode reduzir a viscosidade da resina, mas tamb\u00e9m pode melhorar o efeito hidratante do pigmento. Dispersibilidade \u00famida. A resina de acrilato de poliuretano \u00e9 produzida pela rea\u00e7\u00e3o de condensa\u00e7\u00e3o do \u00e1cido poliacr\u00edlico com \u00e9ster et\u00edlico do \u00e1cido diisocarb\u00e2mico e acrilato de etila. O peso molecular da resina de acrilato de poliuretano pode ser ajustado e a velocidade de cura pode ser ajustada para atender aos diferentes requisitos de impress\u00e3o da tinta UV.<\/p>\n<p>&nbsp;<\/p>\n<p>A resina de poliuretano acrilato tem fortes liga\u00e7\u00f5es de poliuretano em sua estrutura molecular, por isso tem alta ades\u00e3o a pl\u00e1stico, metal e madeira, mas o custo da resina de poliuretano acrilato \u00e9 alto. E a temperatura tem certa influ\u00eancia sobre a viscosidade, a temperatura ambiente \u00e9 principalmente s\u00f3lida e deve ser usada com diluente ativo. As informa\u00e7\u00f5es a seguir ser\u00e3o combinadas com uma formula\u00e7\u00e3o espec\u00edfica de tinta UV para apresentar o mecanismo de cura da tinta UV. Exemplo de formula\u00e7\u00e3o de tinta UV para offset em folha: (consulte a Tabela 1) resina ep\u00f3xi acrilato 45% benzeno \u00e9ter dimet\u00edlico de casamento homog\u00eaneo 4% tetraetilenoglicol diacrilato 23% 2-clorotionato 3% difenilacetona 5% ftalocianina azul bgs 18% cera microcristalina de polietileno 2% o mecanismo de secagem da tinta UV est\u00e1 sob a a\u00e7\u00e3o da luz ultravioleta, fotoiniciador de excita\u00e7\u00e3o para produzir radicais livres ou \u00edons, esses radicais ou \u00edons e polimeriza\u00e7\u00e3o de hidroxila. As liga\u00e7\u00f5es insaturadas no composto reagem com o mon\u00f4mero para formar grupos monom\u00e9ricos e, em seguida, esses grupos monom\u00e9ricos passam por uma rea\u00e7\u00e3o em cadeia para concluir o processo de cura. Figura 1: fonte de luz \u2192 fotoiniciador \u2192 radicais livres -- \u2192 com vinil - \u2192 filme de cura de pol\u00edmeros de mon\u00f4meros e pr\u00e9-pol\u00edmeros para desencadear a rea\u00e7\u00e3o de polimeriza\u00e7\u00e3o, a f\u00f3rmula molecular da quebra de liga\u00e7\u00e3o dupla para a rea\u00e7\u00e3o de polimeriza\u00e7\u00e3o de resina acr\u00edlica para tinta, para gerar resina polim\u00e9rica polimerizada. O diacrilato de tetraetilenoglicol como diluente ativo na tinta desempenha principalmente a fun\u00e7\u00e3o de regular a viscosidade da tinta, regulando assim a capacidade de impress\u00e3o das resinas acr\u00edlicas. Nas tintas UV, a fotossensibilidade aos f\u00f3tons \u00e9 excitada pela luz ultravioleta. Ela ativa o pol\u00edmero e aciona a polimeriza\u00e7\u00e3o de liga\u00e7\u00f5es duplas na resina e no mon\u00f4mero.<\/p>\n<p>&nbsp;<\/p>\n<p>A tinta eb se baseia em um feixe de el\u00e9trons de alta energia que bombardeia diretamente o pr\u00e9-pol\u00edmero da resina, de modo que a polimeriza\u00e7\u00e3o da liga\u00e7\u00e3o dupla da resina e do mon\u00f4mero. A tinta eb usada no pr\u00e9-pol\u00edmero da resina, no mon\u00f4mero e nos requisitos da tinta cur\u00e1vel por UV e no mecanismo de rea\u00e7\u00e3o \u00e9 basicamente a mesma, n\u00e3o se repete aqui. Em segundo lugar, a aplica\u00e7\u00e3o da \u00e1rvore acr\u00edlica em tinta \u00e0 base de \u00e1gua A resina acr\u00edlica n\u00e3o \u00e9 usada somente em tinta UV e tinta eb, mas tamb\u00e9m \u00e9 amplamente usada em tinta \u00e0 base de \u00e1gua. A tinta \u00e0 base de \u00e1gua \u00e9 uma tinta ecologicamente correta, com menos compostos org\u00e2nicos vol\u00e1teis (VOC) no processo de impress\u00e3o, a sa\u00fade do operador de impress\u00e3o \u00e9 inofensiva e o impacto ambiental \u00e9 pequeno. Ela \u00e9 a preferida e est\u00e1 come\u00e7ando a se expandir para o setor de impress\u00e3o de jornais. A tinta \u00e0 base de \u00e1gua \u00e9 uma tinta l\u00edquida que usa \u00e1gua em vez de solventes org\u00e2nicos. O componente b\u00e1sico consiste em um componente de amina org\u00e2nica, um solvente e um aditivo. O componente b\u00e1sico \u00e9 amina org\u00e2nica ou am\u00f4nia, o solvente \u00e9 \u00e1gua e uma pequena quantidade de \u00e1lcool, e os aditivos incluem antiespumante, dispersante e cera. A resina \u00e0 base de \u00e1gua \u00e9 uma parte importante da tinta \u00e0 base de \u00e1gua, que afeta diretamente o desempenho de ades\u00e3o, a velocidade de secagem, o desempenho antiincrustante e a resist\u00eancia ao calor da tinta, al\u00e9m de afetar o brilho e o desempenho de transfer\u00eancia da tinta. Portanto, a escolha da resina certa \u00e9 a chave para as tintas \u00e0 base de \u00e1gua. Ela deve ser f\u00e1cil de formar sais sol\u00faveis em \u00e1gua, ter boa afinidade com os corantes, alta rapidez de ades\u00e3o ap\u00f3s a impress\u00e3o no filme, resist\u00eancia ao desgaste, resist\u00eancia a arranh\u00f5es, boa resist\u00eancia ao calor, bom brilho etc. Alta, e precisam de boa libera\u00e7\u00e3o de \u00e1gua, f\u00e1cil reticula\u00e7\u00e3o e propriedades de forma\u00e7\u00e3o de filme quando impressos e secos. Os adesivos comumente usados podem ser divididos em tr\u00eas categorias principais: adesivos sol\u00faveis em \u00e1gua, adesivos de difus\u00e3o e adesivos sol\u00faveis em \u00e1lcalis.<\/p>\n<p>&nbsp;<\/p>\n<p>As principais resinas usadas em adesivos s\u00e3o acr\u00edlico, poliamida e poli\u00e9ster, mas as mais comumente usadas s\u00e3o as acr\u00edlicas. A resina acr\u00edlica \u00e9 um agente umectante e abrasivo eficiente, ajuda a dispers\u00e3o e a colora\u00e7\u00e3o, tem bom brilho, pode reduzir a quantidade de pigmentos e \u00e9 boa para a prote\u00e7\u00e3o ambiental. De acordo com a aplica\u00e7\u00e3o pr\u00e1tica em tintas \u00e0 base de \u00e1gua, as resinas acr\u00edlicas podem ser divididas em dois tipos principais: tipo de solu\u00e7\u00e3o e tipo de emuls\u00e3o. Em compara\u00e7\u00e3o com esses dois tipos, o primeiro \u00e9 mais compat\u00edvel e est\u00e1vel do que o segundo. A resina acr\u00edlica do tipo solu\u00e7\u00e3o geralmente tem um peso molecular de 5000-10000 mw. Ela n\u00e3o tem as caracter\u00edsticas do estado de emuls\u00e3o, mas tem boa solubilidade e brilho, al\u00e9m de boa molhabilidade como ve\u00edculo e dispers\u00e3o de pigmentos. Entretanto, sua desvantagem \u00e9 a secagem lenta e a m\u00e1 forma\u00e7\u00e3o de filme cont\u00ednuo, por isso geralmente n\u00e3o \u00e9 usado sozinho, mas combinado com outras emuls\u00f5es. H\u00e1 muitas variedades de resinas acr\u00edlicas de emuls\u00e3o, mas o estado das part\u00edculas de emuls\u00e3o formadas por diferentes componentes tamb\u00e9m \u00e9 diferente, e as propriedades f\u00edsicas e qu\u00edmicas tamb\u00e9m s\u00e3o diferentes. Normalmente, h\u00e1 dois tipos de dispers\u00f5es coloidais e emuls\u00f5es conjugadas. As dispers\u00f5es coloidais s\u00e3o, em sua maioria, copol\u00edmeros de \u00e1cido acr\u00edlico e estireno, com pesos moleculares entre 15000-40000mw. Como o n\u00famero de part\u00edculas \u00e9 menor do que o limite necess\u00e1rio para a emuls\u00e3o, n\u00e3o se trata de uma emuls\u00e3o verdadeira, mas o tamanho da part\u00edcula \u00e9 grande o suficiente para adicionar uma grande quantidade de \u00e1gua. Dilui\u00e7\u00e3o. Essa emuls\u00e3o \u00e9 geralmente usada para tintas de impress\u00e3o para caixas de papel\u00e3o ondulado. As emuls\u00f5es de filme de jun\u00e7\u00e3o t\u00eam boa resist\u00eancia a \u00f3leo e \u00e1gua e bom brilho devido ao seu alto peso molecular. Tem boa ades\u00e3o em substratos n\u00e3o absorventes, baixa temperatura de transi\u00e7\u00e3o v\u00edtrea, boa forma\u00e7\u00e3o e resist\u00eancia de filme e \u00e9 amplamente usada para impress\u00e3o em substratos imperme\u00e1veis e secos, como filmes e folhas de metal. A combina\u00e7\u00e3o a seguir com a descri\u00e7\u00e3o da f\u00f3rmula de refer\u00eancia: (consulte a Tabela 2) propor\u00e7\u00e3o de ingredientes glicol 0,5% resina acr\u00edlica 26% \u00e1lcool isoprop\u00edlico 1.5% pigmento de tinta de carbono 16% aditivos antiespumantes 1% am\u00f4nia (28%) 4% \u00e1gua 50% ftalocianina azul b1% a secagem da tinta \u00e0 base de \u00e1gua \u00e9 principalmente a secagem vol\u00e1til e a secagem osm\u00f3tica, O mecanismo de secagem \u00e9 a resina principal no aglutinante que cont\u00e9m carboxila (resina acr\u00edlica) (-cooh), adicionando Depois de adicionar uma certa quantidade de subst\u00e2ncia alcalina do grupo amina (-nh2), o grupo amina reage com o grupo carboxila na resina para produzir sal de amina org\u00e2nica sol\u00favel em \u00e1gua. No processo de secagem da tinta, ap\u00f3s a evapora\u00e7\u00e3o do oxig\u00eanio, a resina na tinta retorna a um filme de tinta insol\u00favel em \u00e1gua, completando assim a secagem e a cura da tinta. A f\u00f3rmula acima exige um controle rigoroso da quantidade de am\u00f4nia e, em geral, controla o valor de pH da tinta.<\/p>\n<h2>Production differences between UV and EB ink curing<\/h2>\n<p>UV curing depends on overlap between lamp emission, photoinitiator absorption and the optical path through the ink. Pigment absorption, film thickness and oxygen exposure can therefore create color-specific surface- and through-cure limits. Electron-beam curing supplies ionizing energy directly and normally does not require a photoinitiator, but it needs specialized shielding, dose control and line equipment.<\/p>\n<p>Neither route should be described as universally faster, cleaner or more complete. Compare capital equipment, line speed, atmosphere, substrate heat sensitivity, ink-film build, residuals, odor, migration requirements and final resistance. The formulation branches must remain separate: a photoinitiator selection that matters to UV is not automatically relevant to EB.<\/p>\n<h2>Consolidation note<\/h2>\n<p>This page is the maintained resource for both UV-versus-EB resin selection and UV-versus-EB ink-curing differences. The older overlapping article at <code>\/difference-between-uv-ink-and-eb-ink-curing\/<\/code> is scheduled for a permanent redirect here so that ranking signals and future updates are not split across two pages.<\/p>\n<h2>Keep the UV and EB formulation branches separate<\/h2>\n<p>For the UV branch, <a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\" data-lc-product-id=\"7553\" data-lc-link-role=\"primary\" data-lc-batch=\"pilot-20-2026-08-15\">CHLUMINIT\u00ae 819 for UV initiation screening<\/a> must be matched to the lamp and film. Reactive diluents such as <a href=\"https:\/\/longchangchemical.com\/pt\/product\/iboa-monomer-cas-5888-33-5\/\" data-lc-product-id=\"4989\" data-lc-link-role=\"secondary\" data-lc-batch=\"pilot-20-2026-08-15\">CHLUMICRYL\u00ae IBOA monomer<\/a> ou <a href=\"https:\/\/longchangchemical.com\/pt\/product\/tmpta-cas-15625-89-5\/\" data-lc-product-id=\"4408\" data-lc-link-role=\"secondary\" data-lc-batch=\"pilot-20-2026-08-15\">CHLUMICRYL\u00ae TMPTA monomer<\/a> change viscosity and network properties in both UV\/EB-capable packages, but EB does not need the UV photoinitiator step.<\/p>\n<h2><strong><b>Entre em contato conosco agora!<\/b><\/strong><\/h2>\n<h4><strong><b>Se precisar de COA, MSDS ou TDS, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato em 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail <span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a><\/span> durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"<p>Ink is one of the main consumables in the printing industry and a major factor in the reproduction of originals. 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