{"id":3120,"date":"2020-09-05T07:24:58","date_gmt":"2020-09-05T07:24:58","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=3120"},"modified":"2026-04-28T11:19:23","modified_gmt":"2026-04-28T11:19:23","slug":"what-is-the-difference-between-optical-brightener-ob-and-optical-brightener-ob-1","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/what-is-the-difference-between-optical-brightener-ob-and-optical-brightener-ob-1\/","title":{"rendered":"Como distinguir entre o agente de clareamento fluorescente OB e o agente de clareamento fluorescente OB-1\uff1f"},"content":{"rendered":"\n

Quick answer:<\/strong> For fluorescent-whitening and food-contact discussions, buyers usually focus on specification fit, migration risk, regulatory boundaries, and how the additive behaves in the finished plastic system rather than treating it as a simple color question.<\/p>\n\n\n\n

1. O branqueador \u00f3ptico OB e o branqueador \u00f3ptico OB-1 s\u00e3o produtos qu\u00edmicos completamente diferentes<\/strong><\/h3>\n\n\n\n\n

2. Branqueador \u00f3ptico OB<\/a> e Branqueador \u00f3ptico OB-1<\/a>Quando se ouve falar em Optical brightener OB e Optical brightener OB-1 pela primeira vez, as pessoas acham que esses dois produtos parecem irm\u00e3os. Quando muitas pessoas ouvem Optical brightener OB e Optical brightener OB-1 pela primeira vez, elas presumem que o Optical brightener OB-1 \u00e9 um complexo de ob. Com o produto, a pureza do OB \u00e9 reduzida em um para se tornar o Optical brightener OB-1. Ent\u00e3o, qual \u00e9 a diferen\u00e7a entre o branqueador \u00f3ptico OB e o branqueador \u00f3ptico OB-1, que tipo de produto deve usar o branqueador \u00f3ptico OB e que tipo de produto \u00e9 mais adequado para o branqueador \u00f3ptico OB-1.<\/h4>\n\n\n\n

Nome qu\u00edmico: Branqueador \u00f3ptico OB-1<\/h4>\n\n\n\n

Outros nomes: Branqueador fluorescente 393; 4,4\u2032-Bis(2-benzoxazolyl)stilbene; Branqueador fluorescente OB-1<\/h4>\n\n\n\n

N\u00famero CAS: 1533-45-5<\/h4>\n\n\n\n

F\u00f3rmula molecular: C28H18N2O2<\/h4>\n\n\n\n

Peso molecular: 414,45<\/h4>\n\n\n\n

Branqueador \u00f3ptico OB-1 Estrutura:<\/h4>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Apar\u00eancia: P\u00f3 amarelo esverdeado<\/h4>\n\n\n\n

Ensaio: 99%<\/h4>\n\n\n\n

Nome qu\u00edmico: Branqueador \u00f3ptico OB<\/h4>\n\n\n\n

CAS: 7128-64-5<\/h4>\n\n\n\n

F\u00f3rmula molecular: C26H26N2O2S<\/h4>\n\n\n\n

Peso molecular: 430,56<\/h4>\n\n\n\n

Branqueador \u00f3ptico Estrutura OB:<\/h4>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Apar\u00eancia: P\u00f3 amarelo esverdeado<\/h4>\n\n\n\n

Ensaio: 99%<\/h4>\n\n\n\n

O branqueador \u00f3ptico OB-1 \u00e9 adequado para o clareamento de fibras qu\u00edmicas, como fibra de poli\u00e9ster, fibra de n\u00e1ilon e fibra de polipropileno. Clareamento e clareamento de pl\u00e1stico de polipropileno, PVC r\u00edgido, ABS, EVA, poliestireno, policarbonato etc. \u00c9 adicionado na polimeriza\u00e7\u00e3o convencional de poli\u00e9ster e n\u00e1ilon.<\/h4>\n\n\n\n

Para obter um clareamento uniforme de pl\u00e1sticos com propriedades diferentes, o agente de clareamento fluorescente deve n\u00e3o apenas se adaptar \u00e0s condi\u00e7\u00f5es de processamento do pl\u00e1stico, mas tamb\u00e9m ter dispers\u00e3o molecular suficiente ou solubilidade completa no pl\u00e1stico. No pl\u00e1stico, o efeito de clareamento \u00f3ptico n\u00e3o pode ser exibido ou muito reduzido. A sele\u00e7\u00e3o dos modelos certos de diferentes materiais melhorar\u00e1 muito o efeito de clareamento do agente de clareamento fluorescente.<\/h4>\n\n\n\n

3. A f\u00f3rmula molecular do branqueador \u00f3ptico OB \u00e9 C26H26N2O2S, e a f\u00f3rmula molecular do branqueador \u00f3ptico OB-1 \u00e9 C28H18N2O2. Na figura acima, podemos ver claramente que os dois s\u00e3o produtos qu\u00edmicos completamente diferentes.<\/h4>\n\n\n\n

<\/p>\n\n\n\n

Qual produto usa o branqueador \u00f3ptico OB, qual produto \u00e9 mais adequado para o branqueador \u00f3ptico OB-1?<\/strong><\/h3>\n\n\n\n

<\/p>\n\n\n\n

Embora sejam duas subst\u00e2ncias qu\u00edmicas diferentes, pela nomenclatura, voc\u00ea tamb\u00e9m pode imaginar que h\u00e1 muitas semelhan\u00e7as entre elas. Por exemplo, o branqueador \u00f3ptico OB e o branqueador \u00f3ptico OB-1 t\u00eam uma ampla gama de aplica\u00e7\u00f5es. A maioria dos pl\u00e1sticos OB e o branqueador \u00f3ptico OB-1 podem ser usados em comum, e o efeito de clareamento e luminosidade \u00e9 \u00f3bvio. Ent\u00e3o, qual \u00e9 a diferen\u00e7a?<\/h4>\n\n\n\n

<\/p>\n\n\n\n

1. Ponto de fus\u00e3o: Branqueador \u00f3ptico OB-1>Branqueador \u00f3ptico OB<\/h3>\n\n\n\n

<\/p>\n\n\n\n

Como o ponto de fus\u00e3o do branqueador \u00f3ptico OB \u00e9 de 200 graus, e o ponto de fus\u00e3o do branqueador \u00f3ptico OB-1 chega a 360 graus, isso determina que o branqueador \u00f3ptico OB n\u00e3o pode ser usado para produtos pl\u00e1sticos de alta temperatura, como carca\u00e7as de ar-condicionado e alguns utens\u00edlios de cozinha. Portanto, se seu produto requer processamento em alta temperatura, o branqueador \u00f3ptico OB-1 \u00e9 sua primeira op\u00e7\u00e3o.<\/h4>\n\n\n\n

<\/p>\n\n\n\n

2. Dispers\u00e3o e estabilidade: Branqueador \u00f3ptico OB>Branqueador \u00f3ptico OB-1<\/h3>\n\n\n\n

<\/p>\n\n\n\n

Aqui, devemos primeiro explicar que uma boa dispersibilidade significa que o produto \u00e9 mais f\u00e1cil de dissolver e de forma homog\u00eanea. Por exemplo, tintas e pinturas t\u00eam altas exig\u00eancias quanto \u00e0 dispersibilidade do agente clareador fluorescente; boa estabilidade significa que o produto n\u00e3o \u00e9 f\u00e1cil de migrar e amarelar em um est\u00e1gio posterior. Por exemplo, algumas solas de sapato inferiores eram brancas e limpas quando foram compradas pela primeira vez, mas ficaram amarelas e descoloridas depois de algum tempo, o que mostra que a estabilidade do agente clareador fluorescente \u00e9 ruim.<\/h4>\n\n\n\n

<\/p>\n\n\n\n

\u00c9 claro que n\u00e3o estou dizendo que a dispers\u00e3o e a estabilidade do branqueador \u00f3ptico OB-1 n\u00e3o s\u00e3o boas, mas s\u00e3o um pouco piores do que as do ob. Devido a essa diferen\u00e7a, a Lianda Fluorescence Technology geralmente n\u00e3o recomenda o uso do branqueador \u00f3ptico OB-1 em revestimentos de tinta e pl\u00e1sticos macios. O Ob \u00e9 relativamente melhor em termos de dispersibilidade e resist\u00eancia a intemp\u00e9ries, e n\u00e3o \u00e9 propenso a amarelar. A situa\u00e7\u00e3o da migra\u00e7\u00e3o.<\/h4>\n\n\n\n

<\/p>\n\n\n\n

O pre\u00e7o \u00e9 a maior diferen\u00e7a entre Branqueador \u00f3ptico<\/strong><\/strong> OB e branqueador \u00f3ptico OB-1<\/strong><\/h3>\n\n\n\n

<\/p>\n\n\n\n

De fato, a maior diferen\u00e7a entre o Optical brightener OB e o Optical brightener OB-1 \u00e9 o pre\u00e7o. Lembro-me de que, h\u00e1 seis anos, o pre\u00e7o do branqueador \u00f3ptico OB era semelhante ao do branqueador \u00f3ptico OB-1. No entanto, devido \u00e0s retifica\u00e7\u00f5es de prote\u00e7\u00e3o ambiental em todo o pa\u00eds, o fornecimento de mat\u00e9ria-prima do branqueador \u00f3ptico OB teve problemas, de modo que o pre\u00e7o do branqueador \u00f3ptico OB disparou. O branqueador \u00f3ptico OB \u00e9 mais de duas vezes mais caro que o branqueador \u00f3ptico OB-1. De acordo com a estimativa do departamento de P&D da Longchang Chemical, o pre\u00e7o pode aumentar. Devido \u00e0 grande diferen\u00e7a de pre\u00e7o, os clientes que podem usar o branqueador \u00f3ptico Optical brightener OB-1 devem tentar escolher o Optical brightener OB-1. Aqueles com requisitos especiais, como revestimentos de tinta de alta qualidade e pl\u00e1sticos macios, s\u00e3o recomendados a usar o branqueador \u00f3ptico OB.<\/h4>\n\n\n\n

<\/p>\n\n\n\n

Diante do aumento do pre\u00e7o do branqueador \u00f3ptico OB, o departamento de P&D da Longchang Chemical continuou a inovar e a desenvolver branqueadores especiais adequados a v\u00e1rios produtos para substituir o branqueador \u00f3ptico OB, reduzindo os custos para os clientes, como ld- para masterbatches de cores, s01, ld-y01 para revestimentos de tinta especiais \u00e0 base de \u00f3leo etc. Os clientes que precisarem podem entrar em contato conosco.<\/h4>\n\n\n\n

<\/p>\n\n\n\n

Entre em contato conosco agora!<\/strong><\/h3>\n\n\n\n

Aceitamos servi\u00e7os personalizados e, em geral, entraremos em contato com voc\u00ea dentro de 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail info@longchangchemical.com<\/a> 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.<\/h4>\n\n\n\n

Este artigo foi escrito pelo Departamento de P&D da Longchang Chemical. Se voc\u00ea precisar copiar e reimprimir, indique a fonte.<\/h4>\n\n\n\n

A seguir est\u00e3o os produtos da s\u00e9rie de branqueadores fluorescentes vendidos por nossa empresa.<\/h4>\n\n\n\n
Branqueador \u00f3ptico OB-1<\/strong><\/a><\/td>1533-45-5<\/strong><\/td><\/tr>
Clareador Fluorescente OB<\/a><\/strong><\/td>7128-64-5<\/strong><\/td><\/tr>
Clareador Fluorescente ER-II<\/a><\/strong><\/td>13001-38-2<\/strong><\/td><\/tr>
Branqueador \u00f3ptico CBS-X<\/a><\/strong><\/td>27344-41-8<\/strong><\/td><\/tr>
Branqueador \u00f3ptico FP-127<\/a><\/strong><\/td>40470-68-6<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

How buyers usually evaluate specialty additives in compliance-sensitive plastics<\/h2>\n

Food-contact and compliance-sensitive additive projects usually need a tighter screen than general industrial formulations. The strongest path usually combines specification review, migration thinking, and validation in the real polymer system.<\/p>\n

    \n
  • Start from the regulatory boundary:<\/strong> customer and market requirements often decide the screening route before formulation optimization begins.<\/li>\n
  • Check the polymer and processing route:<\/strong> the same additive can behave differently across resin systems, temperatures, and contact conditions.<\/li>\n
  • Review appearance together with compliance:<\/strong> visual performance still needs to be balanced against safety and documentation needs.<\/li>\n<\/ul>\n

    FAQ for buyers and formulators<\/h3>\n

    Why do compliance-sensitive plastic additives need more than a basic specification check?<\/strong>
    Because end-use exposure, migration limits, and customer requirements can change whether an additive is commercially acceptable.<\/p>\n

    Is visual effect enough to justify additive selection in food-contact plastics?<\/strong>
    Usually no. Appearance needs to be reviewed together with processing, documentation, and compliance fit.<\/p>\n","protected":false},"excerpt":{"rendered":"

    1. Optical brightener OB and Optical brightener OB-1 are completely different chemicals 2. Optical brightener OB and Optical brightener OB-1, these two look like brothers. When many people hear Optical<\/p>","protected":false},"author":1,"featured_media":3113,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-3120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"\nHow to distinguish between fluorescent whitening agent OB and fluorescent whitening agent OB-1\uff1f - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"How to distinguish between fluorescent whitening agent OB and fluorescent whitening agent OB-1\uff1fLongchang Chemical is china fluorescent whitening agent OB and fluorescent whitening agent OB-1 manufacturer.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/pt\/what-is-the-difference-between-optical-brightener-ob-and-optical-brightener-ob-1\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to distinguish between fluorescent whitening agent OB and fluorescent whitening agent OB-1\uff1f - 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