Optical Brightener OB-1

产品概述Overview

产品介绍Product Introduction

OB-1 为双苯并噁唑类高性能荧光增白剂，专为高温加工体系设计。它吸收 340–380 nm 近紫外光，发射 420–450 nm 亮蓝荧光，光学抵消基体黄相，呈现纯净高级的白。耐热约 400 °C——不分解、不升华；耐晒性优异，长期日晒白度持久，是 PET 与工程塑料的首选。

OB-1 is a high-performance optical brightening agent of the bis-benzoxazole family, specially engineered for polymer systems processed at elevated temperatures. It absorbs invisible ultraviolet light in the 340–380 nm range and re-emits brilliant blue fluorescence at 420–450 nm, optically cancelling the yellow cast of the base resin to deliver a clean, premium white appearance. With outstanding lightfastness and thermal stability up to approximately 400 °C — no decomposition, no sublimation — OB-1 is the product of choice for PET and engineering plastics.

技术参数Specifications

技术数据Technical Data

OB-1 技术参数速览OB-1 Technical Snapshot

化学类型Chemical Type	双苯并噁唑（二苯乙烯类）Bis-benzoxazole (stilbene)
C.I. No. / CAS No.	C.I. 393 · CAS 1533-45-5
荧光Fluorescence	亮蓝 · 420–450 nmBrilliant blue · 420–450 nm
耐热性Heat Stability	约 400 °C~400 °C
建议添加量Typical Dosage	0.01% – 0.05%（100–500 ppm）0.01% – 0.05% (100–500 ppm)
主要应用Main Applications	PET、PC、PBT、PA、母粒PET, PC, PBT, PA, masterbatch
包装Packaging	25 kg 纸板桶25 kg fiber drum
合规Compliance	ISO 9001 · REACH · RoHS · SGS

高增白效率

High Whitening Efficiency

仅 0.01%–0.05% 用量即达优异白度。

Premium whiteness at only 0.01%–0.05% dosage.

耐晒性优异

Excellent Lightfastness

长期日晒下白度持久不泛黄。

Whites stay white under prolonged sun exposure.

卓越耐热性

Superior Heat Resistance

稳定至约 400 °C——不分解、不升华。

Stable to ~400 °C — no decomposition, no sublimation.

广泛相容性

Broad Compatibility

PET、PC、PBT、PA——低迁移，透明件无雾度。

PET, PC, PBT, PA — low migration, no haze in clear parts.

应用Applications

典型应用领域Typical End Uses

PET — 纤维、薄膜、片材与瓶坯 — fiber, film, sheet & bottle preforms

工程塑料Engineering Plastics — PC、PBT、PA — PC, PBT, PA

注塑成型Injection Molding — 高温注塑件 — high-temp molded parts

Masterbatch — 工程树脂白色母粒 — white masterbatch for engineering resins