Views: 0 Author: Site Editor Publish Time: 2026-04-17 Origin: Site
In the textile printing, dyeing, and finishing industry, fabric "hand feel" is one of the key factors determining quality grade and market value. Soft, smooth, full, elastic—behind these tactile experiences, amino silicone oil has always played a core role. However, traditional amino silicone oil products often suffer from problems such as low active content, high transportation costs, poor storage stability, and tendencies to cause fabric yellowing or roller sticking during application.
Addressing these industry pain points, Zhejiang Kefeng Silicone Co., Ltd. , with over 20 years of experience in silicone R&D and manufacturing, leveraging its strong polymerization synthesis capabilities and annual production capacity of thousands of tons, has launched the High-Concentration Amino Silicone Oil Stock Solution. This product is specifically designed for textile auxiliary manufacturers and printing/dyeing enterprises seeking ultimate hand feel and high cost-effectiveness, representing Kefeng's core technical strength in amino-modified silicone oil synthesis.
The most notable feature of Kefeng High-Concentration Amino Silicone Oil Stock Solution is its extremely high active ingredient content. Unlike common emulsion-type silicone oils with 20%-30% solid content on the market, Kefeng's product uses bulk polymerization synthesis, with silicone oil active content in the stock solution reaching as high as 60%-100% (depending on specific grade).
Significantly Reduces Transportation and Warehousing Costs: High concentration means the same weight of active ingredient occupies less volume and weight. For auxiliary manufacturers, purchasing stock solution and self-emulsifying/diluting can significantly reduce ton-kilometer freight costs and warehouse space occupation.
Flexible Self-Emulsifying Capability: The stock solution is designed as "emulsifiable." Users can easily transform it into stable working solutions of any concentration using conventional non-ionic or cationic surfactants, based on fabric type and hand feel requirements. This allows one product to generate multiple application schemes, offering high formulation flexibility.
Reduces Byproducts and Impurities: High-concentration stock solution contains little or no emulsifiers or dilution water, effectively avoiding problems such as demulsification, oil separation, and odor development common in low-end emulsion products due to poor emulsifier shear resistance or bacterial growth.
The amino group (-NH₂) content in amino silicone oil—the amine value—is a double-edged sword. The higher the amine value, the stronger the silicone oil's adsorption to fibers, and the softer and fuller the hand feel. However, amino groups are easily oxidized under high-temperature baking/curing conditions, causing fabric yellowing and tending to cause roller sticking.
Through advanced polymerization processes and catalyst selection, Kefeng achieves precise control of amine value, offering a series of high-concentration stock solutions with low yellowing and high stability:
Low Amine Value/Amine-Free Stock Solution: Specifically designed for white, light-colored, and high-end printed fabrics. While maintaining excellent soft and smooth hand feel, it minimizes high-temperature yellowing index, completely solving the long-standing problem of yellowing and shade change on white fabrics treated with traditional amino silicone oils.
Medium Amine Value Stock Solution: Achieves the best balance between softness and yellowing resistance, suitable for conventional softening finishing on most cotton, linen, synthetic, and blended fabrics.
High Reactivity Stock Solution: Contains specific functional groups that form a more durable elastic film on the fiber surface, imparting "ultra-soft" and "elastic recovery" hand feel, suitable for high-value-added knitted underwear and sportswear.
An excellent silicone oil stock solution must not only be stable itself but also, after emulsification, withstand the complex and variable conditions of dyeing and finishing plants. Kefeng High-Concentration Amino Silicone Oil Stock Solution and its diluted emulsions feature:
High Temperature, High Shear, and Electrolyte Resistance: Under conditions of high-speed stirring, high-temperature padding (40-60°C working bath), and co-bathing with hard water, salts, anionic dyes/auxiliaries, the emulsion remains uniform and stable—no demulsification, no oil separation. This characteristic makes it particularly suitable for same-bath softening during dyeing and other short-process techniques.
Low Roller Sticking Tendency: By optimizing molecular weight distribution and end-group structure, the risk of silicone oil accumulating and sticking on padder rollers, guide rollers, and drying cylinders is greatly reduced. Equipment cleaning cycles are extended, downtime for maintenance is shortened, and production efficiency is significantly improved.
Compatible with Non-Ionic/Anionic Systems: After emulsification/transformation, the emulsion can be compounded with various finishing auxiliaries such as optical brighteners, resin finishing agents, water repellents, and antistatic agents—without layering, flocculation, or precipitation, offering great formulation design freedom.
Kefeng has developed a rich matrix of high-concentration stock solution products for different fiber types and hand feel requirements:
Product Series | Key Features | Typical Applications |
|---|---|---|
KF-822 Series | Ultra-soft, high elasticity, medium amine value | Cotton knitted underwear, polyester sportswear, denim garment washing softening |
KF-868 Series | Extremely smooth, low yellowing, low amine value | Synthetic silk-like fabrics, polyester filament fabrics, home textiles (pursuing cool, smooth hand feel) |
KF-896 Series | Hydrophilic/moisture-wicking type (specially modified) | Sports T-shirts, towels, underwear requiring moisture absorption and quick drying with soft hand feel |
KF-820H | High concentration, economical general-purpose type | Dark-colored fabrics with low whiteness requirements, pile fabrics, wool products |
Note: The above are representative grades only. Kefeng can customize stock solutions with specific viscosity, amine value, and reactivity based on customer requirements.
As one of the largest manufacturers of block silicone oil in China, Kefeng has three production bases (East Hangzhou, North Hangzhou, and Quzhou National Green Gathering Area) with a monthly production capacity of crude block silicone oil reaching 1,000 tons. Choosing Kefeng stock solution means:
Stable and Reliable Supply Chain: Large-scale, multi-base production capacity ensures rapid order response and uninterrupted supply.
Consistent Quality: From monomer polymerization to finished product filling, fully automated process control and batch testing ensure that key indicators such as viscosity, amine value, and solid content are highly consistent across batches.
Professional Technical Support: The Kefeng team has深耕 the organosilicon and textile auxiliary fields for over 20 years, providing not only products but also full-process technical support—from emulsification formulations and application processes to problem troubleshooting.
Continuous Innovation Capability: As shown in the company's news updates, Kefeng continuously launches next-generation products such as high-temperature stable types, environmentally friendly low-amine-value types, and combined-hand-feel types, consistently leading the industry's technological direction.
In the increasingly competitive textile finishing market, cost reduction, efficiency improvement, and quality enhancement are eternal themes. Kefeng High-Concentration Amino Silicone Oil Stock Solution, with its high active content, precisely controlled amine value, excellent emulsion stability, and flexible self-emulsifying characteristics, provides auxiliary manufacturers and printing/dyeing enterprises with a key to unlocking high-performance softening finishing.
It is both a concentrated softness essence—a small addition imparts outstanding soft, smooth, and elastic hand feel to fabrics—and an efficient, flexible platform, allowing users to freely create the finishing style best suited to their products. Choosing Kefeng means choosing higher efficiency, lower cost, and more stable quality to meet the market's increasingly demanding expectations for fabric hand feel.
