Natural fibers such as wool and silk are highly valued for their luxurious feel and aesthetic appeal. However, they can often present challenges in achieving consistent, brilliant whiteness without damaging their delicate structure. Optical Brightener SWN C.I. 140 offers a tailored solution, and NINGBO INNO PHARMCHEM CO.,LTD. is a leading optical brightener for natural silk manufacturer committed to preserving the quality of these exquisite materials.


Optical Brightening Agent SWN, known as C.I. 140, is a sophisticated coumarin derivative that provides excellent whiteness specifically for natural fibers. Unlike harsh bleaching agents that can weaken or discolor wool and silk, SWN works by an optical effect. It absorbs invisible UV light and re-emits it as visible blue light, counteracting any yellowish tones and enhancing the natural luminosity of the fibers. This process ensures a pristine, vibrant white appearance while maintaining the fiber's inherent softness and strength.


For manufacturers focused on high-quality wool products, the C.I. 140 brightener for wool is an indispensable tool. It ensures that wool garments, yarns, and fabrics achieve an unparalleled level of brightness, boosting their market value. Similarly, for silk processing, choosing the right brightening agent is paramount. NINGBO INNO PHARMCHEM CO.,LTD. produces SWN C.I. 140 with the specific needs of these fibers in mind, guaranteeing good solubility and compatibility within processing baths, leading to uniform and stunning results.


Finding a reliable supplier to buy natural fiber whitening agent is crucial for consistent product quality. NINGBO INNO PHARMCHEM CO.,LTD. stands as a reputable manufacturer and supplier of Optical Brightener SWN C.I. 140, adhering to stringent quality control protocols. Our expertise ensures that this versatile brightener performs exceptionally well on delicate fibers, delivering the desired aesthetic without compromise. We understand the unique requirements of specialty fiber processing and offer solutions that enhance both appearance and integrity.


Partnering with NINGBO INNO PHARMCHEM CO.,LTD. means access to a consistent supply of high-purity Optical Brightener SWN C.I. 140, designed to meet the exacting standards of the natural fiber industry. Elevate the beauty and market appeal of your wool and silk products by incorporating our superior brightening solutions into your production process.