Views: 0 Author: Site Editor Publish Time: 2026-06-26 Origin: Site
n the field of textile finishing, hand feel is a key factor determining product quality and added value. Consumers' pursuit of comfort in clothing has evolved beyond simple softness to encompass lasting smoothness, bulkiness, and elasticity. Zhejiang Kefeng Silicone Co., Ltd., with over two decades of industry experience, has developed this High-Fastness Block Silicone Oil as a high-performance solution to meet these demands, particularly distinguished in the market by its excellent wash resistance.
Block silicone oil is a class of specialty silicone softeners synthesized using advanced block copolymerization technology. Unlike traditional amino silicone oils or polyether-modified silicone oils, its molecular chain consists of polysiloxane segments, polyether segments, and polyamine segments arranged in an ordered manner through chemical bonds. This unique "block" structure endows it with multiple advantages:
Self-Emulsifying Properties: It can disperse in water without the need for external emulsifiers, completely solving the processing difficulties of traditional silicone oils such as oil separation and roller sticking.
Tailored Functional Design: By adjusting the length and ratio of different segments, it allows customization to achieve combined hand feels such as hydrophilic, ultra-soft, and bulky.
Reactive Anchoring: Reactive groups on the molecular chain form strong bonds with groups on fibers (especially cotton, polyester, etc.), which is the fundamental source of its high wash fastness.
"High fastness" is the core value of Kefeng's block silicone oil. The hand feel imparted by traditional softeners often "disappears after just one wash." In contrast, Kefeng's block silicone oil features a special molecular structure that enables it to form strong chemical bonds or high-strength physical adsorption with fibers. This means that even after multiple home launderings, the softness, bulkiness, and smoothness imparted to the fabric remain at a high level. This significantly extends the "comfort life" of garments, which is a crucial value proposition for high-quality apparel and brands.
Traditional softeners often achieve softness at the cost of moisture absorption and wicking properties. Kefeng's hydrophilic silicone oils, developed for different fibers, successfully combine the two. The polyether segments in its molecular structure provide hydrophilic groups, enabling treated fabrics to quickly absorb and evaporate perspiration; meanwhile, the siloxane segments impart silky smoothness. This feature is especially vital for underwear, sportswear, and other next-to-skin garments, delivering a "soft yet dry" wearing experience.
In production, the stability of auxiliaries is of paramount importance. Kefeng's block silicone oil exhibits outstanding resistance to high temperature, strong alkali, strong acid, and high shear forces, reliably handling the complex and variable conditions in dyeing and finishing mills, thereby avoiding risks such as demulsification and roller sticking. Furthermore, its formulation effectively inhibits the yellowing issues common with traditional amino silicone oils, making it particularly suitable for white, light-colored, and bright fabrics, ensuring colors remain vibrant.
Based on the above characteristics, this high-fastness block silicone oil is widely used in the finishing of various fiber types:
Application Area | Typical Fabrics | Imparted Effects |
|---|---|---|
Apparel Fabrics | Pure cotton, polyester/cotton, nylon, polyester, and their blends | Ultra-soft, smooth, bulky, and elastic full hand feel |
Home Textiles | Towels, bed linens, loungewear | Hydrophilic, soft, moisture-wicking and quick-drying, enhancing comfort |
Functional Fabrics | Sportswear, outdoor gear | Provides lasting softness and moisture-wicking properties, with wash resistance |
Denim & Casual Wear | Jeans, sweatshirts, knitwear | Improves stiffness, imparting a drapable and soft wearing experience |
Choosing Kefeng's products means selecting scale, professionalism, and stability guarantee.
Industry Position & Capacity: Established in 2002 with a registered capital of RMB 60 million, Kefeng is one of China's largest manufacturers of block silicone oil. Its current monthly production and sales volume of crude block silicone oil has exceeded 2,000 tons, fully meeting the large-scale demands of global customers.
R&D Strength & Honors: The company boasts an efficient R&D team dedicated to continuous product iteration. It has been recognized as one of "China's Top 20 Enterprises in Comprehensive Strength for Textile Printing and Dyeing Auxiliaries" and a national-level "Little Giant" company specializing in new technologies, receiving authoritative recognition for its technical capabilities.
Environmental Protection & Sustainability: Products meet bluesign® PARTNER standards and are free from APEO and other prohibited substances, ensuring safety and environmental friendliness. Additionally, the company is committed to developing energy-saving processes such as water-free polyester washing, actively responding to the industry's green transformation trend.
In summary, Zhejiang Kefeng's High-Fastness Block Silicone Oil, with its advanced block copolymerization technology, excellent wash resistance, versatile functionality combining hydrophilicity and hand feel, and stable quality from mass production, offers textile printing and dyeing enterprises a highly competitive hand-feel finishing solution. Choosing it means your products will gain lasting comfort, enhancing quality while aligning with current trends toward green and sustainable development.
