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Fluorescent Whitening Agent 369 Optical Brightener Ksb for Polyester Fibres
US$48.00-50.00
25 kg
Sample price:US$1.00/gram.Request sample
Product profile
Customization
AvailableCAS No.
1087737-53-8Formula
C26h18n2o2Model NO.
KSBEINECS
254-935-6Appearance
PowderUsage
Plastic Auxiliary AgentsColor
GreenC.I.
369Application
Fiber, Plastic, Polyester Fiber, EVATransport Package
25kg Per DrumSpecification
25kg/drumTrademark
NEWSANDAOrigin
ChinaHS Code
32042000Production Capacity
5000mt/MonthKey features
High Purity Content: Ensures 98% minimum content for consistent optical brightening performance.
Versatile Application: Ideal for whitening polyester fiber, EVA, and blended fabrics like polyether/cotton.
Customizable Packaging: Standard 25KG drums available with customizable packaging options for customer needs.
Global Export Experience: Proven track record exporting to over 25 countries including USA, Europe, and Asia.
Fast Lead Time: Consistent delivery within 15 working days for both peak and off-season orders.
Flexible Payment Terms: Supports multiple secure payment methods including LC, T/T, PayPal, and Western Union.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-05-03Nearest Port: QINGDAO, TIANJINAverage Response Time: ≤5.56hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FCA
AI-Powered supplier vetting
SummaryQingdao New Sanda Industry Co., Ltd. is identified as both a trading company and manufacturer/factory in China, focused on chemicals and construction-related products. The supplier reports ISO-series management certifications, two production lines, 21–30 quality-control staff, and peak- and off-peak order fulfillment within 15 working days. Its stated capabilities include R&D, customized formulations, formulation optimization, application testing, troubleshooting, multilingual documentation, and after-sales support. The supplier reports extensive export coverage and began exporting in 2015, but the available trade evidence shows only one recorded transaction and one associated buyer. Financial credibility cannot be assessed because financial data is excluded from evaluation.
Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory. Its stated business focuses on chemical products and industrial additives, including Titanium Dioxide, HPMC, VAE, HEC, CMC, and related materials.
CertificationsThe supplier lists ISO 9000, ISO 14001, ISO 9001, ISO 14000, and ISO 20000 certifications. These stated certifications provide explicit evidence of certified management-system coverage, although the slices do not provide certificate numbers, validity dates, or scope details.
After-Sales capabilityThe supplier states that it provides after-sales service, multilingual documentation, formulation optimization, application testing, and troubleshooting. These are explicit service offerings supporting customers after product delivery.
R&D capabilityThe supplier describes a dedicated R&D team, technical innovation, market-responsive product development, and feedback integration from global partners. It also reports total R&D engineer experience of 11–20 years, supporting an established innovation function.
Production capacityThe supplier presents itself as a chemical manufacturer and reports two production lines, 21–30 quality-control staff, and fulfillment within 15 working days in both peak and off-peak periods. Its product portfolio and end-to-end commercial supply description support production capability, although total output details are not evaluated here.
Customization capabilityThe supplier explicitly offers customized formulations for specific application challenges and provides formulation optimization, application testing, and troubleshooting. Its process includes sample testing through full-scale commercial supply, indicating support for tailored industrial additive solutions.
Product Q&A
Q:Which materials can this brightener be applied to?
A:
It is mainly used for whitening synthetic fibers, plastics, polyester fiber, EVA, and polyether/cotton blends.
Q:What is the standard packaging size?
A:
The standard packaging is 25KG per drum, box, or bag, but customizable packaging is available.
Q:What is the typical lead time for orders?
A:
The average lead time is within 15 working days, regardless of peak or off-season periods.
Q:What payment methods are accepted?
A:
We accept LC, T/T, PayPal, Western Union, Money Gram, and small-amount payments.
Q:What is the melting point of the product?
A:
The melting point ranges from 240 to 245 degrees Celsius.
Send Inquiry
*To:
Qingdao New Sanda Industry Co., Ltd.
Qingdao New Sanda Industry Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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