{"id":3739,"date":"2025-09-24T16:24:42","date_gmt":"2025-09-24T08:24:42","guid":{"rendered":"https:\/\/www.honorpigments.com\/?post_type=product&p=3739"},"modified":"2026-04-13T22:46:35","modified_gmt":"2026-04-13T14:46:35","slug":"optical-brightener-ob-1","status":"publish","type":"product","link":"https:\/\/www.honorpigment.com\/it\/prodotto\/optical-brightener-ob-1\/","title":{"rendered":"Optical Brightener OB-1"},"content":{"rendered":"

Optical<\/b><\/strong>\u00a0Brightener<\/b><\/strong>\u00a0OB<\/b><\/strong>-<\/b><\/strong>1<\/b><\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Prodotto<\/b><\/strong>\u00a0Nome<\/b><\/strong><\/td>\nOptical<\/b><\/strong>\u00a0brightener<\/b><\/strong>\u00a0OB<\/b><\/strong>-1(<\/b><\/strong>C<\/b><\/strong>.<\/b><\/strong>I<\/b><\/strong>.<\/b><\/strong>\u00a0393)<\/b><\/strong><\/td>\n<\/tr>\n
CAS\u00a0No.<\/td>\n1533-45-5<\/td>\n<\/tr>\n
EINECS\u00a0No.<\/td>\n216-245-3<\/td>\n<\/tr>\n
Other\u00a0Name<\/td>\n4,4′-Bis(2-benzoxazolyl)stilbene<\/td>\n<\/tr>\n
Molecular Formula<\/td>\nC28H18N2O2<\/td>\n<\/tr>\n
Appearance<\/td>\nBright\u00a0yellow\u00a0\/ green\u00a0crystalline\u00a0powder<\/td>\n<\/tr>\n
Purit<\/b><\/strong>y<\/b><\/strong><\/td>\n\u226599<\/b><\/strong>%<\/b><\/strong><\/td>\n<\/tr>\n
Melting<\/b><\/strong>\u00a0point<\/b><\/strong><\/td>\n360~380<\/b><\/strong>\u00a0\u00b0<\/b><\/strong>C<\/b><\/strong><\/td>\n<\/tr>\n
Volatile:<\/td>\n<0.5%<\/td>\n<\/tr>\n
Package<\/td>\n20kg\u00a0per\u00a0carton, 25\/30kg\u00a0per\u00a0fiber\u00a0drum\u00a0with\u00a0PE\u00a0liner, or\u00a0as\u00a0per the\u00a0customers’ requirements.<\/td>\n<\/tr>\n
Applications:<\/p>\n

Mostly used in the brightening the products of synthetic fiber and plastics, it is widely used in plastic film, material of lamination moulding and injection moulding as well as preferable brightening efficiency on polyolefin, PVC, PVC foaming, TPR, EVA and PU foaming together with coating, natural lacquer, etc. It also has specially good effect\u00a0 on foaming plastics, especially EVA, PE foaming.<\/td>\n<\/tr>\n

Properties:<\/p>\n

\u2022\u00a0\u00a0\u00a0\u00a0\u00a0Colors\u00a0appear\u00a0more\u00a0brilliant<\/p>\n

\u2022 \u00a0\u00a0\u00a0\u00a0Environmentally\u00a0friendly<\/p>\n

\u2022\u00a0\u00a0\u00a0\u00a0\u00a0Excellent\u00a0brightening\u00a0ability<\/p>\n

\u2022\u00a0\u00a0\u00a0\u00a0\u00a0Produce\u00a0a\u00a0bluish\u00a0tinge, masking\u00a0yellowness<\/p>\n

\u2022 \u00a0\u00a0\u00a0\u00a0Whiter-than-white\u00a0appearance.<\/td>\n<\/tr>\n

Dosage:<\/p>\n

It is commonly used in<\/b><\/strong>\u00a0the<\/b><\/strong>\u00a0amount<\/b><\/strong>\u00a0of<\/b><\/strong>\u00a00.02-0.05%<\/b><\/strong>,\u00a0 each 1 00kg of the materials, the optical brightener OB- 1 takes 20g-50g or can be adjusted acco rding to the requirements of the product or test.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n

Why Choose Honor Pigments?<\/h3>\n
    \n
  • \ud83c\udf0d Global Export Expertise<\/strong> \u2014 Trusted by customers in 40+ countries for consistent quality and reliable supply<\/li>\n
  • \u2705 Strict Quality Control<\/strong> \u2014 ISO 9001 certified with batch-to-batch consistency and zero-defect policy<\/li>\n
  • \ud83d\udcb0 OEM Production Advantage<\/strong> \u2014 Competitive pricing without compromising pigment performance<\/li>\n
  • \ud83e\uddea Technical Support<\/strong> \u2014 Free color matching, formulation advice and sample testing before bulk order<\/li>\n<\/ul>\n
    \n

    \ud83d\udce9 Need more details?<\/strong><\/p>\n

    Request TDS, SDS, or a free sample for testing.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    CAS NO.:\u00a01533-45-5<\/p>\n

    Molecular formula:C28H18N2O2<\/p>\n

    Applications:Mostly used in the brightening the products of synthetic fiber and plastics, it is widely used in plastic film, material of lamination moulding and injection moulding as well as preferable brightening efficiency on polyolefin, PVC, PVC foaming, TPR, EVA and PU foaming together with coating, natural lacquer, etc. It also has specially good effect on foaming plastics, especially EVA, PE foaming.<\/p>","protected":false},"featured_media":3741,"template":"","meta":[],"product_brand":[],"product_cat":[111],"product_tag":[376],"class_list":{"0":"post-3739","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ob","7":"product_tag-ob-1","8":"stm_brands-honor-additives","10":"first","11":"instock","12":"shipping-taxable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/product\/3739","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/product\/3739\/revisions"}],"predecessor-version":[{"id":8522,"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/product\/3739\/revisions\/8522"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/media\/3741"}],"wp:attachment":[{"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/media?parent=3739"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/product_brand?post=3739"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/product_cat?post=3739"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.honorpigment.com\/it\/wp-json\/wp\/v2\/product_tag?post=3739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}