{"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\/it\/what-is-the-difference-between-optical-brightener-ob-and-optical-brightener-ob-1\/","title":{"rendered":"Come distinguere tra l'agente sbiancante fluorescente OB e l'agente sbiancante fluorescente OB-1\uff1f"},"content":{"rendered":"<!-- lc-qa-start -->\n<p><strong>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<!-- lc-qa-end -->\n\n\n<h3 class=\"wp-block-heading\">1. <strong>Il sbiancante ottico OB e il sbiancante ottico OB-1 sono sostanze chimiche completamente diverse.<\/strong><\/h3>\n\n\n\n\n<h4 class=\"wp-block-heading\">2. <a rel=\"noreferrer noopener\" href=\"https:\/\/longchangchemical.com\/it\/product\/optical-brightener-ob-cas-7128-64-5\/\" target=\"_blank\">Sbiancante ottico OB<\/a> e <a rel=\"noreferrer noopener\" href=\"https:\/\/longchangchemical.com\/it\/product\/optical-brightener-ob-1-cas-1533-45-5\/\" target=\"_blank\">Brillantante ottico OB-1<\/a>Questi due prodotti sembrano fratelli. Quando molte persone sentono parlare per la prima volta di Optical brightener OB e Optical brightener OB-1, danno per scontato che Optical brightener OB-1 sia un complesso di ob. Con il prodotto, la purezza dell'ob viene ridotta di uno per diventare lo sbiancante ottico OB-1. Quindi, qual \u00e8 la differenza tra lo sbiancante ottico OB e lo sbiancante ottico OB-1, che tipo di prodotto dovrebbe utilizzare lo sbiancante ottico OB e quale tipo di prodotto \u00e8 pi\u00f9 adatto allo sbiancante ottico OB-1.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Nome chimico: Brillantante ottico OB-1<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Altro nome: Brillantante fluorescente 393; 4,4\u2032-Bis(2-benzoxazolyl)stilbene; Brillantante fluorescente OB-1<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">N. CAS: 1533-45-5<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Formula molecolare: C28H18N2O2<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Peso molecolare: 414,45<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Sbiancante ottico OB-1 Struttura:<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"365\" height=\"61\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/09\/Optical-brightener-OB-1-Structure-1.png\" alt=\"\" class=\"wp-image-3121\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/09\/Optical-brightener-OB-1-Structure-1.png 365w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/09\/Optical-brightener-OB-1-Structure-1-300x50.png 300w\" sizes=\"(max-width: 365px) 100vw, 365px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Aspetto: Polvere giallo-verdastra<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Test: 99%<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Nome chimico: Brillantante ottico OB<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">CAS: 7128-64-5<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Formula molecolare: C26H26N2O2S<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Peso molecolare: 430,56<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Sbiancante ottico Struttura OB:<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"338\" height=\"99\" src=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/09\/Optical-brightener-OB-Structure-1.png\" alt=\"\" class=\"wp-image-3122\" srcset=\"https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/09\/Optical-brightener-OB-Structure-1.png 338w, https:\/\/longchangchemical.com\/wp-content\/uploads\/2020\/09\/Optical-brightener-OB-Structure-1-300x88.png 300w\" sizes=\"(max-width: 338px) 100vw, 338px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Aspetto: Polvere giallo-verdastra<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Test: 99%<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Lo sbiancante ottico OB-1 \u00e8 adatto per lo sbiancamento di fibre chimiche come fibra di poliestere, fibra di nylon e fibra di polipropilene. Sbiancamento e schiaritura di plastica in polipropilene, PVC rigido, ABS, EVA, polistirolo, policarbonato, ecc. Viene aggiunto nella polimerizzazione convenzionale di poliestere e nylon.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Per ottenere uno sbiancamento uniforme di materie plastiche con propriet\u00e0 diverse, l'agente sbiancante fluorescente deve non solo adattarsi alle condizioni di lavorazione della plastica, ma anche avere una dispersione molecolare sufficiente o una solubilit\u00e0 completa nella plastica. Nella plastica, l'effetto ottico di sbiancamento non pu\u00f2 essere visualizzato o fortemente ridotto. La scelta dei modelli giusti di diversi materiali migliorer\u00e0 notevolmente l'effetto sbiancante dell'agente sbiancante fluorescente.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">3. La formula molecolare dello sbiancante ottico OB \u00e8 C26H26N2O2S, mentre la formula molecolare dello sbiancante ottico OB-1 \u00e8 C28H18N2O2. Dall'immagine qui sopra, si vede chiaramente che si tratta di due sostanze chimiche completamente diverse.<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Quale prodotto utilizza lo sbiancante ottico OB, quale prodotto \u00e8 pi\u00f9 adatto allo sbiancante ottico OB-1?<\/strong><\/h3>\n\n\n\n<p>                       <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Anche se si tratta di due sostanze chimiche diverse, dalla denominazione si pu\u00f2 intuire che ci sono molte somiglianze tra le due. Ad esempio, lo sbiancante ottico OB e lo sbiancante ottico OB-1 hanno un'ampia gamma di applicazioni. La maggior parte degli ob di plastica e lo sbiancante ottico OB-1 possono essere utilizzati in comune e l'effetto di sbiancamento e di schiarimento \u00e8 evidente. Quindi, dov'\u00e8 la differenza?<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Punto di fusione: Brillantante ottico OB-1&gt;brillantante ottico OB<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Poich\u00e9 il punto di fusione del brillantante ottico OB \u00e8 di 200 gradi, mentre il punto di fusione del brillantante ottico OB-1 raggiunge i 360 gradi, ci\u00f2 determina che il brillantante ottico OB non pu\u00f2 essere utilizzato per prodotti in plastica ad alta temperatura, come gli involucri dei condizionatori d'aria e alcuni utensili da cucina. Pertanto, se il vostro prodotto richiede una lavorazione ad alta temperatura, il brillantante ottico OB-1 \u00e8 la vostra prima scelta.<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Dispersione e stabilit\u00e0: Brillantante ottico OB&gt;brillantante ottico OB-1<\/h3>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">In primo luogo, dobbiamo spiegare che una buona disperdibilit\u00e0 significa che il prodotto \u00e8 pi\u00f9 facile da sciogliere e in modo uniforme. Ad esempio, le vernici e gli inchiostri hanno requisiti elevati per quanto riguarda la disperdibilit\u00e0 dell'agente sbiancante fluorescente; una buona stabilit\u00e0 significa che il prodotto non \u00e8 facile da migrare e ingiallire in una fase successiva. Ad esempio, alcune suole di scarpe di qualit\u00e0 inferiore erano bianche e pulite al momento dell'acquisto, ma dopo un po' sono diventate gialle e scolorite, il che dimostra che la stabilit\u00e0 dell'agente sbiancante fluorescente \u00e8 scarsa.<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Naturalmente, non sto dicendo che la dispersione e la stabilit\u00e0 dello sbiancante ottico OB-1 non siano buone, ma che sono leggermente peggiori di quelle dell'ob. A causa di questa differenza, Lianda Fluorescence Technology in genere non raccomanda l'uso dello sbiancante ottico OB-1 nei rivestimenti di inchiostro e nelle materie plastiche morbide. Ob \u00e8 relativamente migliore in termini di disperdibilit\u00e0 e resistenza agli agenti atmosferici, e non \u00e8 soggetto a ingiallimento. La situazione della migrazione.<\/h4>\n\n\n\n<p>                                        <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Il prezzo \u00e8 la differenza maggiore tra <strong>Sbiancante ottico<\/strong><\/strong> <strong>ob e sbiancante ottico OB-1<\/strong><\/h3>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">In effetti, la differenza maggiore tra il sbiancante ottico OB e il sbiancante ottico OB-1 \u00e8 il prezzo. Ricordo che 6 anni fa il prezzo del Brillantante ottico OB era simile a quello del Brillantante ottico OB-1. Tuttavia, a causa delle rettifiche per la protezione dell'ambiente a livello nazionale in Cina, l'approvvigionamento di materie prime del sbiancante ottico OB ha avuto problemi, per cui il prezzo del sbiancante ottico OB \u00e8 salito alle stelle. Il sbiancante ottico OB \u00e8 pi\u00f9 del doppio pi\u00f9 costoso del sbiancante ottico OB-1. Secondo le stime del dipartimento di ricerca e sviluppo di Longchang Chemical, il prezzo potrebbe aumentare. A causa dell'enorme differenza di prezzo, i clienti che possono utilizzare il sbiancante ottico OB-1 dovrebbero provare a scegliere il sbiancante ottico OB-1. A coloro che hanno esigenze particolari, come i rivestimenti per inchiostri di fascia alta e le materie plastiche morbide, si consiglia di utilizzare lo sbiancante ottico OB.<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Di fronte all'impennata del prezzo del sbiancante ottico OB, il dipartimento di Ricerca e Sviluppo di Longchang Chemical ha continuato a innovare e a sviluppare sbiancanti speciali adatti a vari prodotti per sostituire il sbiancante ottico OB, riducendo i costi per i clienti, come ld- per i masterbatches di colore. s01, ld-y01 per i rivestimenti speciali di inchiostri a base di olio, ecc. I clienti che ne hanno bisogno possono contattarci.<\/h4>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Contattateci ora!<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Accettiamo servizi personalizzati, di solito vi contatteremo entro 24 ore. Potete anche inviarmi un'e-mail <a href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a> durante l'orario di lavoro (dalle 8:30 alle 18:00 UTC+8 lun.-sab.) o utilizzare la live chat del sito web per ottenere una risposta immediata.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Questo articolo \u00e8 stato scritto dal Dipartimento di Ricerca e Sviluppo di Longchang Chemical. Se si desidera copiare e ristampare, si prega di indicare la fonte.<\/h4>\n\n\n\n<h4 class=\"wp-block-heading\">Di seguito sono riportati i prodotti della serie di sbiancanti fluorescenti venduti dalla nostra azienda.<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><a href=\"https:\/\/longchangchemical.com\/it\/product\/optical-brightener-ob-1-cas-1533-45-5\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Brillantante ottico OB-1<\/strong><\/a><\/td><td><strong>1533-45-5<\/strong><\/td><\/tr><tr><td><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/optical-brightener-ob-cas-7128-64-5\/\" target=\"_blank\" rel=\"noreferrer noopener\">Illuminante fluorescente OB<\/a><\/strong><\/td><td><strong>7128-64-5<\/strong><\/td><\/tr><tr><td><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/optical-brightener-er-%e2%85%a1-cas-13001-38-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">Brillantante fluorescente ER-II<\/a><\/strong><\/td><td><strong>13001-38-2<\/strong><\/td><\/tr><tr><td><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/optical-brightening-agent-cbs-x-cas-27344-41-8\/\" target=\"_blank\" rel=\"noreferrer noopener\">Brillantante ottico CBS-X<\/a><\/strong><\/td><td><strong>27344-41-8<\/strong><\/td><\/tr><tr><td><strong><a href=\"https:\/\/longchangchemical.com\/it\/product\/fluorescent-brightener-378-cas-40470-68-6\/\" target=\"_blank\" rel=\"noreferrer noopener\">Brillantante ottico FP-127<\/a><\/strong><\/td><td><strong>40470-68-6<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<!-- lc-commercial-start -->\n<h2>How buyers usually evaluate specialty additives in compliance-sensitive plastics<\/h2>\n<p>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<ul>\n<li><strong>Start from the regulatory boundary:<\/strong> customer and market requirements often decide the screening route before formulation optimization begins.<\/li>\n<li><strong>Check the polymer and processing route:<\/strong> the same additive can behave differently across resin systems, temperatures, and contact conditions.<\/li>\n<li><strong>Review appearance together with compliance:<\/strong> visual performance still needs to be balanced against safety and documentation needs.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why do compliance-sensitive plastic additives need more than a basic specification check?<\/strong><br \/>Because end-use exposure, migration limits, and customer requirements can change whether an additive is commercially acceptable.<\/p>\n<p><strong>Is visual effect enough to justify additive selection in food-contact plastics?<\/strong><br \/>Usually no. Appearance needs to be reviewed together with processing, documentation, and compliance fit.<\/p>\n<!-- lc-commercial-end -->","protected":false},"excerpt":{"rendered":"<p>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":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How 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, 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