{"id":7862,"date":"2025-01-21T09:38:11","date_gmt":"2025-01-21T09:38:11","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7862"},"modified":"2026-04-28T10:42:48","modified_gmt":"2026-04-28T10:42:48","slug":"offset-printing-photoinitiator","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/offset-printing-photoinitiator\/","title":{"rendered":"Impress\u00e3o offset - Fotoiniciador"},"content":{"rendered":"<p>A impress\u00e3o offset, tamb\u00e9m conhecida como litografia, \u00e9 um dos m\u00e9todos de impress\u00e3o mais amplamente utilizados no campo da impress\u00e3o. A chapa de impress\u00e3o offset da parte gr\u00e1fica e da parte n\u00e3o gr\u00e1fica est\u00e1 basicamente no mesmo plano, h\u00e1 apenas uma pequena diferen\u00e7a de altura, o uso de \u00f3leo e \u00e1gua repele o princ\u00edpio da impress\u00e3o, a parte gr\u00e1fica do hidrof\u00f3bico (pr\u00f3-tinta), a parte n\u00e3o gr\u00e1fica do hidrof\u00edlico (repelir a tinta). A impress\u00e3o, primeiro com uma solu\u00e7\u00e3o de fonte para molhar a parte n\u00e3o gr\u00e1fica da parte gr\u00e1fica, \u00e9 uma solu\u00e7\u00e3o de fonte repulsiva; e, em seguida, pela transfer\u00eancia de tinta do rolo de tinta, a parte gr\u00e1fica da aceita\u00e7\u00e3o da tinta, a parte n\u00e3o gr\u00e1fica da tinta repulsiva; a parte gr\u00e1fica da tinta e, em seguida, transferida para o rolo de borracha e, depois, passada para o substrato, \u00e9 uma impress\u00e3o indireta. O processo de impress\u00e3o offset \u00e9 mostrado na Figura 3-10.<\/p>\n<p>Placa de impress\u00e3o offset<\/p>\n<p>A chapa de impress\u00e3o usada na impress\u00e3o offset \u00e9 a chapa pr\u00e9-sensibilizada (chapa PS), que \u00e9 uma chapa offset pr\u00e9-revestida com uma camada fotopolimerizada em uma chapa de base de alum\u00ednio e, em seguida, estocada ap\u00f3s o processamento e usada para solariza\u00e7\u00e3o a qualquer momento. Na d\u00e9cada de 1980, a tecnologia de fabrica\u00e7\u00e3o de chapas digitais - tecnologia computer to plate (computador para chapa, CTP), que representa o mais recente desenvolvimento da tecnologia de impress\u00e3o, no s\u00e9culo XXI, a tecnologia CTP est\u00e1 se tornando mais madura, os equipamentos CTP e os materiais das chapas continuam a se desenvolver e a progredir, tornando-se a corrente principal dos produtos de impress\u00e3o offset.<\/p>\n<p>(1) Placa PS positiva<br \/>\nA placa positiva de PS \u00e9 revestida com fotopol\u00edmero de o-diazo naftoquinona fotodegrad\u00e1vel e resina fen\u00f3lica linear no substrato de alum\u00ednio com superf\u00edcie tratada e, em seguida, seca e transformada em uma camada de resina de fotopol\u00edmero.<\/p>\n<p>O processo de fabrica\u00e7\u00e3o da placa PS:<\/p>\n<p>Exposi\u00e7\u00e3o UV \u2192 revela\u00e7\u00e3o \u2192 secagem \u2192 retoque \u2192 chapa de impress\u00e3o<\/p>\n<p>Quando a placa PS positiva \u00e9 usada, as placas PS negativa e positiva s\u00e3o laminadas a v\u00e1cuo e expostas a uma l\u00e2mpada de haleto met\u00e1lico (por exemplo, l\u00e2mpada de iodeto de g\u00e1lio) ou a uma l\u00e2mpada de merc\u00fario de m\u00e9dia press\u00e3o. Sob a irradia\u00e7\u00e3o de luz ultravioleta, o grupo diazo se decomp\u00f5e e o nitrog\u00eanio \u00e9 precipitado e, ao mesmo tempo, ocorre um rearranjo intramolecular e a cetona se transforma em enona, e a cetona se hidrolisa na presen\u00e7a de \u00e1gua e se transforma em carboxilato, como a por\u00e7\u00e3o sens\u00edvel \u00e0 luz do grupo carboxilato, e \u00e9 removida por revela\u00e7\u00e3o com solu\u00e7\u00f5es alcalinas de revela\u00e7\u00e3o, como silicato de s\u00f3dio, fosfato de s\u00f3dio, carbonato de s\u00f3dio ou aminas org\u00e2nicas, e \u00e9 exposta \u00e0 luz. Revelado e removido, revelando o substrato de alum\u00ednio hidrof\u00edlico. A parte n\u00e3o fotossens\u00edvel da forma\u00e7\u00e3o da pr\u00f3-tinta gr\u00e1fica, para obter uma imagem positiva. A chapa \u00e9 transformada em uma chapa de impress\u00e3o com a remo\u00e7\u00e3o da sujeira, reparo e secagem da chapa. \u00c0s vezes, para melhorar a resist\u00eancia da impress\u00e3o, tamb\u00e9m \u00e9 poss\u00edvel usar uma chapa de cozimento de alta temperatura.<\/p>\n<p>(2) Placa PS com imagem negativa<br \/>\nA placa de PS negativa \u00e9 revestida com resinas fotopolim\u00e9ricas fotopolimerizadas, como resina diazo e sistema de resina sol\u00favel em \u00e1lcali, sistema de pol\u00edmero com grupo azida e sistema de pol\u00edmero com grupo de \u00e1cido cin\u00e2mico no substrato de alum\u00ednio ap\u00f3s o tratamento de superf\u00edcie, e suas sensibilidades s\u00e3o maiores do que as da placa de PS positiva, mas algumas delas s\u00e3o desenvolvidas com solvente, o que \u00e9 caro, prejudicial aos seres humanos e tamb\u00e9m polui o meio ambiente.<\/p>\n<p>O processo de fabrica\u00e7\u00e3o de chapas PS negativas:<\/p>\n<p>Exposi\u00e7\u00e3o UV \u2192 revela\u00e7\u00e3o \u2192 secagem \u2192 retoque \u2192 chapa de impress\u00e3o<\/p>\n<p>Quando a placa PS negativa \u00e9 usada, o negativo \u00e9 laminado a v\u00e1cuo com a placa PS negativa e exposto com uma l\u00e2mpada de haleto met\u00e1lico (por exemplo, l\u00e2mpada de iodeto de g\u00e1lio) ou uma l\u00e2mpada de merc\u00fario de m\u00e9dia press\u00e3o. Sob irradia\u00e7\u00e3o ultravioleta, ocorre a polimeriza\u00e7\u00e3o e a liga\u00e7\u00e3o cruzada na parte que enxerga a luz, e a parte gr\u00e1fica da chapa \u00e9 formada para ser pr\u00f3-tinta. Para n\u00e3o ver a parte clara, alguns sistemas usam uma solu\u00e7\u00e3o alcalina dilu\u00edda, como a revela\u00e7\u00e3o com carbonato de s\u00f3dio, para remover, alguns sistemas usam uma revela\u00e7\u00e3o com solvente para remover, o substrato de alum\u00ednio exposto \u00e9 hidrof\u00edlico e obt\u00e9m-se a imagem negativa. A chapa \u00e9 transformada em chapa de impress\u00e3o por meio da remo\u00e7\u00e3o da sujeira, do corte e da secagem.<\/p>\n<p>(3) Placa CTP<br \/>\nA tecnologia CTP \u00e9 o uso de dados digitalizados por meio da m\u00e1quina de fabrica\u00e7\u00e3o de chapas a laser, que copia a imagem e o texto diretamente para a tecnologia de chapas de impress\u00e3o. O processo de fabrica\u00e7\u00e3o de chapas CTP, em compara\u00e7\u00e3o com o processo tradicional de fabrica\u00e7\u00e3o de chapas de impress\u00e3o offset, n\u00e3o precisa de filme de separa\u00e7\u00e3o de cores de sal de prata, mas tamb\u00e9m pode economizar v\u00e1rios processos de fabrica\u00e7\u00e3o de chapas, conforme mostrado na figura 3-11.<\/p>\n<p>Compara\u00e7\u00e3o entre o processo CTP e o processo tradicional de fabrica\u00e7\u00e3o de chapas offset<\/p>\n<p>O sistema de fabrica\u00e7\u00e3o de chapas CTP tem diferentes estruturas, diferentes fontes de luz e diferentes chapas CTP. Atualmente, existem principalmente placas CTP a laser violeta, placas CTP t\u00e9rmicas e placas UV-CTP, e a estrutura, o mecanismo de imagem e o desempenho das placas s\u00e3o diferentes, cada uma com suas pr\u00f3prias caracter\u00edsticas (consulte a Tabela 3-30).<\/p>\n<p>Compara\u00e7\u00e3o do desempenho de tr\u00eas placas CTP comuns<\/p>\n<p>Impress\u00e3o em Offset<br \/>\nOs principais recursos da impress\u00e3o offset s\u00e3o os seguintes.<\/p>\n<p>\u2460 A espessura da camada de tinta \u00e9 muito fina, geralmente a espessura da tinta offset \u00e9 de cerca de 2\u03bcm em uma cor.<\/p>\n<p>\u2461 Como o rolo de tinta e o rolo de \u00e1gua entram em contato com a chapa de impress\u00e3o alternadamente, a adequa\u00e7\u00e3o de impress\u00e3o da tinta \u00e9 extremamente alta, e deve-se evitar a emulsifica\u00e7\u00e3o da tinta.<\/p>\n<p>\u2462 A velocidade de impress\u00e3o da impress\u00e3o offset \u00e9 r\u00e1pida, geralmente na faixa de 100 a 400 m\/min.<\/p>\n<p>\u2463 A tinta de impress\u00e3o offset tem alta viscosidade, alta concentra\u00e7\u00e3o de pigmentos e alto poder de colora\u00e7\u00e3o.<\/p>\n<p>\u2464 A impress\u00e3o offset \u00e9 uma impress\u00e3o indireta, que \u00e9 transferida para o substrato por rolos de borracha el\u00e1stica, de modo que a press\u00e3o de impress\u00e3o \u00e9 relativamente pequena e uniforme, com alta precis\u00e3o de sobreimpress\u00e3o, boa reprodutibilidade de gr\u00e1ficos, pontos claros e camadas ricas.<\/p>\n<p>A tinta de impress\u00e3o offset tradicional \u00e9 uma resina fen\u00f3lica modificada com breu e outras resinas sint\u00e9ticas como material de liga\u00e7\u00e3o, tinta \u00e0 base de solvente, que polui o meio ambiente; com o uso da tinta de impress\u00e3o offset UV, a impress\u00e3o offset fez novos progressos.<\/p>\n<p>(1) Aprimoramento do processo geral de impress\u00e3o offset<br \/>\n\u2460 impress\u00e3o offset no uso de tintas UV, impress\u00f5es na chegada da parte receptora foi curada, pode ser livre de pulveriza\u00e7\u00e3o de p\u00f3, n\u00e3o s\u00f3 prop\u00edcio para a limpeza do ambiente de impress\u00e3o, para proteger a sa\u00fade do operador, mas tamb\u00e9m para evitar a pulveriza\u00e7\u00e3o de p\u00f3 para o processamento p\u00f3s-impress\u00e3o do problema causado pelo efeito, como envernizamento, efeito de lamina\u00e7\u00e3o do efeito do processamento cont\u00ednuo e pode ser realizado. Al\u00e9m de melhorar o ambiente operacional, tamb\u00e9m melhora a efici\u00eancia da produ\u00e7\u00e3o e reduz o tempo de entrega.<\/p>\n<p>A tinta UV curada pela irradia\u00e7\u00e3o da fonte de luz UV n\u00e3o \u00e9 irradiada antes que o tanque de tinta n\u00e3o se desfa\u00e7a em crosta, na impressora ou na placa n\u00e3o secar\u00e1, portanto, o tempo de inatividade da m\u00e1quina de impress\u00e3o offset sem limpar os tanques de tinta e os rolos de borracha resolve as preocupa\u00e7\u00f5es com o tempo de inatividade da m\u00e1quina de impress\u00e3o offset, reduz o desperd\u00edcio de tinta e economiza tempo de limpeza.<\/p>\n<p>\u2462 O dispositivo de cura \u00e9 simples, f\u00e1cil de manter, n\u00e3o precisa de um dispositivo de secagem por infravermelho como o canal de secagem, mesmo que voc\u00ea adicione o equipamento associado a ele, a \u00e1rea ocupada ainda \u00e9 muito menor do que a \u00e1rea ocupada pelo equipamento de secagem por infravermelho comum.<\/p>\n<p>(4) O equipamento de cura por UV pode fazer a cura da tinta UV rapidamente em baixas temperaturas, seu consumo de energia \u00e9 muito menor do que o da impress\u00e3o de tinta tradicional por meio de secagem com ar quente ou secagem por infravermelho.<\/p>\n<p>(2) Tornar a impress\u00e3o offset aplic\u00e1vel a uma variedade de materiais de substrato, ampliando o escopo de aplica\u00e7\u00e3o da impress\u00e3o offset<br \/>\n\u2460 impress\u00e3o de substrato de papel composto. O papel composto \u00e9 feito de duas ou mais das duas ou mais das diferentes propriedades do papel ou de outros materiais combinados para formar um material de papel, como a vida cotidiana comum de leite, cigarros, \u00e1lcool, a maior parte da caixa de embalagem externa feita de papel composto. Materiais de papel composto com ades\u00e3o de impress\u00e3o de tinta comum, resist\u00eancia \u00e0 fric\u00e7\u00e3o, secagem ruim e outros problemas. O fotossensibilizador de tinta UV na irradia\u00e7\u00e3o UV, a resina nas liga\u00e7\u00f5es insaturadas abertas, reticuladas para formar uma estrutura de malha, melhorando consideravelmente as propriedades f\u00edsicas da superf\u00edcie da camada de tinta, resolvendo fundamentalmente uma s\u00e9rie de problemas.<\/p>\n<p>\u2461 impress\u00e3o de material n\u00e3o absorvente. Por exemplo, filme de polietileno, filme de PVC, filme de polipropileno, folha de metal e materiais especiais n\u00e3o absorventes. Esses substratos, se forem impressos com tinta comum \u00e0 base de solvente, al\u00e9m da necessidade de um determinado tempo de secagem, geralmente tamb\u00e9m precisam usar p\u00f3 em spray, dispositivo de rack de secagem ou na tinta misturada com outros aditivos e outros meios de processamento, e a cura da tinta UV sem penetra\u00e7\u00e3o, completamente livre de problemas de lentid\u00e3o na secagem da tinta comum. Al\u00e9m disso, a tinta UV pode melhorar as propriedades f\u00edsicas da superf\u00edcie da camada de tinta e pode ser usada para compensar a impress\u00e3o de tinta UV em areia fina, ouro, prata etc., enquanto a impress\u00e3o offset comum \u00e9 dif\u00edcil de ser obtida.<\/p>\n<p>\u2462 Impress\u00e3o em material met\u00e1lico. A impress\u00e3o com tinta UV na superf\u00edcie de materiais met\u00e1licos pode encurtar o processo de cura e simplificar o dispositivo de cura original. Ao mesmo tempo, a camada superficial de tinta UV de boa curabilidade e o filme podem n\u00e3o apenas melhorar as caracter\u00edsticas do processamento p\u00f3s-impress\u00e3o, mas tamb\u00e9m melhorar a apar\u00eancia da qualidade do produto.<\/p>\n<p>(3) A impress\u00e3o offset UV tem excelentes resultados de impress\u00e3o<br \/>\nA impress\u00e3o offset \u00e9 usada principalmente para a impress\u00e3o de produtos finos, a cura e a secagem da tinta offset UV imediatamente ap\u00f3s a impress\u00e3o, a tinta n\u00e3o penetra no substrato, de modo que a cor \u00e9 mais v\u00edvida, mais clara, melhorando muito a satura\u00e7\u00e3o da cor do material impresso e pode reduzir a perda de pequenos pontos e melhorar a taxa de transfer\u00eancia de tinta da impress\u00e3o sobreposta de cores. Al\u00e9m disso, as impress\u00f5es offset UV na textura da superf\u00edcie, na prote\u00e7\u00e3o, na resist\u00eancia \u00e0 abras\u00e3o e na efici\u00eancia da produ\u00e7\u00e3o etc. com as impress\u00f5es offset tradicionais n\u00e3o podem ser comparadas \u00e0s vantagens das impress\u00f5es com durabilidade, anti-riscos e arranh\u00f5es etc., mas tamb\u00e9m t\u00eam resist\u00eancia qu\u00edmica e resist\u00eancia \u00e0 corros\u00e3o.<\/p>\n<p>(4) A impress\u00e3o offset UV \u00e9 uma impress\u00e3o ecol\u00f3gica<br \/>\nAs quest\u00f5es ambientais s\u00e3o o principal motivo para o uso maci\u00e7o da tinta UV. O principal motivo pelo qual a grande maioria dos usu\u00e1rios de tinta escolhe a tecnologia de impress\u00e3o UV \u00e9 que a aplica\u00e7\u00e3o da tinta UV est\u00e1 de acordo com as normas ambientais.<\/p>\n<p>Sem volatiliza\u00e7\u00e3o de solventes: A impress\u00e3o UV quase n\u00e3o emite compostos org\u00e2nicos vol\u00e1teis (VOC), resolvendo o problema da polui\u00e7\u00e3o ambiental no processo de secagem de tintas \u00e0 base de solvente.<\/p>\n<p>\u2461 Economia de energia. As tintas convencionais \u00e0 base de solvente t\u00eam uma propor\u00e7\u00e3o significativa de solvente evaporado no processo de revestimento. Portanto, se a mesma \u00e1rea, a mesma espessura de filme da \u00e1rea de impress\u00e3o for comparada, fica claro que a quantidade de consumo de energia da tinta \u00e0 base de solvente \u00e9 muito maior.<\/p>\n<p>(5) Impress\u00e3o offset UV para expandir a aplica\u00e7\u00e3o da impress\u00e3o offset no campo da impress\u00e3o especial<br \/>\nComo a aplica\u00e7\u00e3o da tecnologia de impress\u00e3o offset continua a amadurecer, muitos fabricantes de equipamentos introduziram uma variedade de modelos de impressoras offset UV. Com essas impressoras offset, \u00e9 poss\u00edvel realizar impress\u00f5es tridimensionais lenticulares simples e de alta qualidade. Como resultado, a impress\u00e3o tridimensional pode ser produzida em grandes quantidades e a qualidade do produto \u00e9 aprimorada, ampliando a aplica\u00e7\u00e3o da impress\u00e3o offset no campo da impress\u00e3o especial.<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>A practical sourcing checklist for specialty chemical applications<\/h2>\n<p>Specialty-chemical purchasing usually goes more smoothly when teams define the end-use risk first and then verify purity, compatibility, processing behavior, and regulatory fit as one package. That often prevents expensive rework after the material reaches production or customer testing.<\/p>\n<ul>\n<li><strong>Start from the end-use standard:<\/strong> food contact, plastics, coatings, preservation, and industrial processing all create different specification priorities.<\/li>\n<li><strong>Check compatibility in the real system:<\/strong> a compliant material can still be the wrong commercial choice if it destabilizes the formulation or process.<\/li>\n<li><strong>Review handling and storage:<\/strong> some specialty chemicals succeed or fail based on how they behave during blending, transport, or long-term storage.<\/li>\n<li><strong>Use sample validation before scale-up:<\/strong> pilot checks on the intended formula or production step usually save the most time and cost.<\/li>\n<\/ul>\n<h3>Refer\u00eancias de produtos recomendadas<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\">CHLUMINIT 819<\/a>:<\/strong> Useful when a formulation needs stronger absorption and deeper cure support.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/irgacure-1173-cas-7473-98-5\/\">CHLUMINIT 1173<\/a>:<\/strong> A practical comparison point for classic short-wave UV initiation.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-itx-cas-5495-84-1\/\">CHLUMINIT ITX<\/a>:<\/strong> A useful long-wave support route in many printing-ink packages.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cq\/\">CHLUMINIT CQ<\/a>:<\/strong> A direct reference for visible-light and color-sensitive curing discussions.<\/li>\n<\/ul>\n<h3>FAQ para compradores e formuladores<\/h3>\n<p><strong>Why is specification matching not enough for specialty chemicals?<\/strong><br \/>Because a material can meet the basic spec and still fail in the actual formulation, process, or downstream compliance requirement.<\/p>\n<p><strong>Should price be the first filter for specialty raw materials?<\/strong><br \/>Price matters, but technical fit, compliance, and process reliability usually decide whether the material is truly economical in use.<\/p>\n<p><!-- lc-commercial-end --><\/p>\n<h2><strong><b>Entre em contato conosco agora!<\/b><\/strong><\/h2>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Resposta r\u00e1pida:<\/strong> A practical sourcing decision for specialty chemicals starts with the use case first, then checks specification, compatibility, handling, and any regulatory or customer-specific requirement.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<h4><strong><b>Se precisar do Price, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato dentro de 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail <a href=\"mailto:info@longchangchemical.com\"><span style=\"color: #00ccff;\">info@longchangchemical.com<\/span><\/a>\u00a0durante 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>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 435.77pt;\" border=\"0\" width=\"581\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt; width: 215.25pt;\" width=\"287\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-tpo-cas-75980-60-8\/\"><span style=\"color: #00ccff;\">Fotoiniciador TPO<\/span><\/a><\/td>\n<td style=\"width: 220.50pt;\" width=\"294\">CAS 75980-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/cas-270586-78-2\/\"><span style=\"color: #00ccff;\">Fotoiniciador TMO<\/span><\/a><\/td>\n<td>CAS 270586-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-pd-01-cas-579-07-7\/\"><span style=\"color: #00ccff;\">Fotoiniciador PD-01<\/span><\/a><\/td>\n<td>CAS 579-07-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-pbz-cas-2128-93-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador PBZ<\/span><\/a><\/td>\n<td>CAS 2128-93-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-oxe-02-cas-478556-66-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador OXE-02<\/span><\/a><\/td>\n<td>CAS 478556-66-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-ombb\/\"><span style=\"color: #00ccff;\">Fotoiniciador OMBB<\/span><\/a><\/td>\n<td>CAS 606-28-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mpbz-6012\/\"><span style=\"color: #00ccff;\">Fotoiniciador MPBZ (6012)<\/span><\/a><\/td>\n<td>CAS 86428-83-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mbp-cas-134-84-9\/\"><span style=\"color: #00ccff;\">Fotoiniciador MBP<\/span><\/a><\/td>\n<td>CAS 134-84-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-mbf-cas-15206-55-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador MBF<\/span><\/a><\/td>\n<td>CAS 15206-55-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-lap-cas-85073-19-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador LAP<\/span><\/a><\/td>\n<td>CAS 85073-19-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-itx-cas-5495-84-1\/\"><span style=\"color: #00ccff;\">Fotoiniciador ITX<\/span><\/a><\/td>\n<td>CAS 5495-84-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-emk\/\"><span style=\"color: #00ccff;\">Fotoiniciador EMK<\/span><\/a><\/td>\n<td>CAS 90-93-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-eha-cas-21245-02-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador EHA<\/span><\/a><\/td>\n<td>CAS 21245-02-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-edb-cas-10287-53-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador EDB<\/span><\/a><\/td>\n<td>CAS 10287-53-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-detx-cas-82799-44-8\/\"><span style=\"color: #00ccff;\">Fotoiniciador DETX<\/span><\/a><\/td>\n<td>CAS 82799-44-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cq\/\"><span style=\"color: #00ccff;\">Fotoiniciador CQ \/ canforoquinona<\/span><\/a><\/td>\n<td>CAS 10373-78-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cbp-cas-134-85-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador CBP<\/span><\/a><\/td>\n<td>CAS 134-85-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-bp-cas-119-61-9\/\"><span style=\"color: #00ccff;\">Fotoiniciador BP \/ Benzofenona<\/span><\/a><\/td>\n<td>CAS 119-61-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-bms\/\"><span style=\"color: #00ccff;\">Fotoiniciador BMS<\/span><\/a><\/td>\n<td>CAS 83846-85-9<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-938\/\"><span style=\"color: #00ccff;\">Fotoiniciador 938<\/span><\/a><\/td>\n<td>CAS 61358-25-6<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-937-cas-71786-70-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 937<\/span><\/a><\/td>\n<td>CAS 71786-70-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-dw\/\"><span style=\"color: #00ccff;\">Fotoiniciador 819 DW<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\"><span style=\"color: #00ccff;\">Fotoiniciador 819<\/span><\/a><\/td>\n<td>CAS 162881-26-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-784-cas-125051-32-3\/\"><span style=\"color: #00ccff;\">Fotoiniciador 784<\/span><\/a><\/td>\n<td>CAS 125051-32-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-754-cas-211510-16-6-442536-99-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 754<\/span><\/a><\/td>\n<td>CAS 211510-16-6 442536-99-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-6993-cas-71449-78-0\/\"><span style=\"color: #00ccff;\">Fotoiniciador 6993<\/span><\/a><\/td>\n<td>CAS 71449-78-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-6976\/\"><span style=\"color: #00ccff;\">Fotoiniciador 6976<\/span><\/a><\/td>\n<td>CAS 71449-78-0 89452-37-9 108-32-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-379-cas-119344-86-4\/\"><span style=\"color: #00ccff;\">Fotoiniciador 379<\/span><\/a><\/td>\n<td>CAS 119344-86-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-369-cas-119313-12-1\/\"><span style=\"color: #00ccff;\">Fotoiniciador 369<\/span><\/a><\/td>\n<td>CAS 119313-12-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-160\/\">Fotoiniciador 160<\/a><\/span><\/td>\n<td>CAS 71868-15-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-1206\/\"><span style=\"color: #00ccff;\">Fotoiniciador 1206<\/span><\/a><\/td>\n<td><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/product\/irgacure-1173-cas-7473-98-5\/\"><span style=\"color: #00ccff;\">Fotoiniciador 1173<\/span><\/a><\/td>\n<td>CAS 7473-98-5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Offset printing, also known as lithography, is one of the most widely used printing methods in the printing field. 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