Block silicone oil forms an ultra-thin elastic film on the fiber surface through the lubricating effect of siloxane segments, reducing the friction coefficient between fibers and giving the fabric a silky, fluffy, or (smooth and soft) touch. Compared with traditional amino silicone oil, its segmented structure avoids the limitations of single functional groups:
Amino-siloxane-polyether ternary block silicone oil (e.g., micro-emulsified type) reduces oxidative yellowing caused by direct exposure of amino groups, suitable for high-colorfastness scenarios such as white shirt fabrics and baby clothing.
In the finishing of silk-imitation (polyester filament) fabrics, block silicone oil controls the length of siloxane segments (e.g., 2000-5000cSt) to simulate the "draping and smooth" feel of real silk, while polyether segments enhance antistatic properties to reduce static electricity in close-fitting garments.
In wool and cashmere fabrics, block silicone oils with branched structures (e.g., star-shaped blocks) can penetrate into the curly structure of fibers to form an "air buffer layer," enhancing the puffiness and anti-felting property of woolens.
Epoxy-siloxane block silicone oil can crosslink with the hydroxyl groups of cellulosic fibers to form a network structure, increasing the wrinkle recovery angle of cotton fabrics (e.g., from 220° to over 300°) and reducing the need for ironing after washing. Such products are often used for "permanent non-iron" finishing of shirt fabrics.
The hydrophilic segments of polyether-type block silicone oil (e.g., EO/PO random block) can absorb moisture from the air, forming conductive pathways on the fiber surface to reduce static electricity accumulation. Typical applications include:
Through fluoroalkyl-siloxane block copolymerization (e.g., C6 fluoro structure), a low surface energy layer (surface energy ≤10 mN/m) can be formed on the fabric surface, making it difficult for oil and dirt to adhere. This technology is used in outdoor 冲锋衣 (hard-shell jackets), hotel tablecloths, etc., while maintaining fabric breathability.
In industrial fibers such as aramid and carbon fiber, amino-siloxane block silicone oil can form hydrogen bonds with polar groups (e.g., -COOH) on the fiber surface through amino groups, enhancing the interfacial bonding force between fibers and resins and improving the mechanical properties of composite materials (e.g., bulletproof fabrics, aerospace textiles).
Coating agents containing polyether-siloxane blocks can improve the uniform adsorption of water-based inks on fabrics, reduce color bleeding, and give the printed surface a smooth touch, suitable for personalized custom fabrics (e.g., home textile digital printing).
Type | Name | Replace | Handfeeling | Applied Fabrics |
Block Silicone | SILIT-3000 | NO | SOFT/SMOOTH | SARI /KNITTING POLYESTER |
Block Silicone | SILIT-3500 | NO | SMOOTH/FLUFFY | POLYESTER/COTTON |
Block Silicone | SILIT-3300 | NO | SOFT | POLYESTER/COTTON |
Block Silicone | SILIT-3800 | NO | SUPER STABLE/ SOFT | PRITNTING FABRICES |
Block Silicone | SILIT-SRS | MOMENTIVE SRS | FLUFFY/ SOFT | Blanket/Velvet |
Block Silicone | SILIT-238 | MOMENTIVE 238 | FLUFFY/ SMOOTH | Blanket/Velvet |
Block Silicone | SILIT-4916 | TRANSFER-4916 | FLUFFY/ SMOOTH/SOFT | Blanket/Velvet |
Detailed technical specifications available upon inquiry
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