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The Low-Temperature Soaping Agent (Energy-Saving Type) is a specialized textile auxiliary product from Zhejiang Kefeng Silicone Co., Ltd., a company established in 2002 with registered capital of 60 million RMB. Kefeng Silicone operates three manufacturing bases, two located to the east and north of Hangzhou City and one in the Quzhou Green Gathering Area, a national chemical industrial park. The company is recognized as one of the "top 20 enterprises with comprehensive strength of textile printing and dyeing auxiliaries in China" and is the largest manufacturer of ternary block silicone oil in China, with a monthly production capacity of 1,000 tons of crude block silicone oil.
This low-temperature soaping agent represents a significant advancement in sustainable textile processing. As the industry faces increasing pressure to reduce carbon emissions and energy consumption, this product enables effective soaping at significantly lower temperatures than traditional processes, directly supporting the "Dual Carbon" goals of energy conservation and emission reduction .
The low-temperature soaping agent is formulated using a combination of high-efficiency surfactants and auxiliary agents. According to related patent technology in the field, such formulations typically include components such as fatty alcohol polyethers, anionic-nonionic surfactants, sodium carboxymethyl cellulose (CMC), polyvinylpyrrolidone (PVP), sodium polyacrylate (PAAS), and triethanolamine (TEA) . This sophisticated blend is designed to deliver excellent soaping performance at reduced temperatures while remaining environmentally responsible.
During the soaping process, the agent works through multiple mechanisms. The surfactant components effectively emulsify and disperse unfixed dye molecules and residual chemicals from the fabric surface. The polymeric components—including CMC, PVP, and PAAS—provide anti-redeposition properties, preventing dispersed dyes from re-adhering to the fabric. This ensures that the fabric achieves clean, bright shades with excellent color fastness. The chelating properties of certain components also help sequester metal ions present in the water or on the fabric, preventing them from interfering with the soaping process.
A key feature of this low-temperature soaping agent is its environmental profile. The formulation is designed to be phosphorus-free, free of alkylphenol ethoxylates (APEO), and free of harmful solvents, making it readily biodegradable . This aligns with the growing demand for sustainable textile auxiliaries that minimize environmental impact while maintaining high performance.
The most prominent advantage of this product is its ability to perform effectively at low temperatures. While traditional soaping processes typically require temperatures of 90-95°C or higher, this low-temperature soaping agent achieves excellent results at 60°C or even lower . Research confirms that low-temperature soaping can significantly reduce steam consumption, directly translating to energy savings and reduced carbon emissions . For textile dyeing and printing mills, this represents a substantial reduction in operating costs and a meaningful step toward sustainability goals.
Despite operating at reduced temperatures, the product delivers soaping performance comparable to conventional high-temperature processes. Studies have shown that low-temperature soaping achieves equivalent color fastness—including washing fastness, dry and wet rubbing fastness, perspiration fastness, and water immersion fastness—to traditional high-temperature soaping . The residual soaping liquor is typically lighter in color, indicating more effective removal of unfixed dyes, while the fabric's color shade and brightness remain largely unaffected.
The formulation is designed to be low-foaming, which facilitates easier rinsing and reduces water consumption during the washing process. This characteristic also makes the product suitable for use in continuous processing equipment where excessive foam can cause operational issues. The self-chelating properties of certain components further enhance the rinsing efficiency, ensuring that no residual chemicals remain on the fabric.
The combination of polymeric dispersants provides effective anti-redeposition performance. This means that dyes and impurities removed from the fabric during soaping remain suspended in the bath and are not re-deposited onto the fabric. This results in cleaner, brighter fabrics with better color consistency and reduced risk of staining or dulling.
The low-temperature soaping agent is suitable for use with various dye types, particularly reactive dyes, which are widely used in cotton and cellulosic fiber dyeing. It is compatible with common textile processing equipment, including jiggers, winches, jet dyeing machines, and continuous washing ranges. The product is also compatible with other auxiliaries typically used in the dyeing process.
This low-temperature soaping agent is designed for the post-dyeing soaping process in textile dyeing and printing operations. Typical applications include:
Reactive Dye Soaping: Effective removal of unfixed reactive dyes from cotton, viscose, and other cellulosic fabrics after dyeing, ensuring excellent color fastness and brightness.
Printing After-Treatment: Removal of thickeners, unfixed dyes, and chemicals from printed fabrics to achieve clear patterns and vibrant colors.
Continuous Processing: Suitable for use in continuous washing ranges where low-temperature operation can be integrated into the production line for maximum efficiency.
Energy-Conscious Production: Particularly valuable for mills seeking to reduce their carbon footprint and energy costs while maintaining high product quality.
Zhejiang Kefeng Silicone Co., Ltd. has been engaged in the research, development, production, and sale of textile printing and dyeing auxiliaries since its founding in 2002 . The company's product portfolio includes block silicone oil, hydrophilic silicone oil, amino silicone oil, fixing and soaping agents, moisture-wicking agents, water-repellent agents, and intermediate series. This broad expertise in textile chemistry provides a solid foundation for the development of high-performance soaping agents.
Kefeng Silicone is committed to providing products that are stable in quality, full in variety, and large in yield. The company's deepening resin and deepening silicone oil products can increase the depth of black polyester fabric by 50-80%, demonstrating the company's technical capabilities in developing specialized auxiliaries for demanding applications.
The company's standing as one of China's top 20 textile auxiliaries enterprises reflects its commitment to quality, innovation, and customer satisfaction. With three manufacturing bases strategically located in Zhejiang Province, Kefeng Silicone is well-positioned to serve both domestic and international customers efficiently.
Item | Specification |
|---|---|
Appearance | Colorless to light yellow liquid |
Ionicity | Anionic / Nonionic |
pH Value | 7.0 - 9.0 (1% aqueous solution) |
Solid Content | ≥ 30% |
Solubility | Easily soluble in water |
Application Temperature | 60°C or lower |
Foaming | Low foam |
Environmental Profile | Phosphorus-free, APEO-free, biodegradable |
Note: Specific parameters may vary by product grade. Please consult the manufacturer for detailed technical data sheets.
For optimal results, the low-temperature soaping agent should be applied according to the following general guidelines:
Dosage: Typically 1-3 g/L, depending on the depth of shade and the amount of unfixed dye present.
Temperature: 60°C or lower, depending on the specific process requirements.
Processing Time: 10-20 minutes, adjusted according to equipment type and fabric weight.
Rinsing: Follow with warm and cold rinses as per standard practice.
Specific usage recommendations should be validated through laboratory trials before full-scale production.
The Low-Temperature Soaping Agent (Energy-Saving Type) from Zhejiang Kefeng Silicone Co., Ltd. represents a significant advancement in sustainable textile processing. By enabling effective soaping at temperatures as low as 60°C, this product delivers substantial energy savings and carbon emission reductions while maintaining excellent soaping performance and color fastness .
Its environmentally responsible formulation—free of phosphorus, APEO, and harmful solvents—aligns with the industry's growing focus on sustainability and the "Dual Carbon" goals . With excellent anti-redeposition properties, low foaming characteristics, and broad compatibility, this low-temperature soaping agent is an ideal choice for textile dyeing and printing mills seeking to reduce their environmental footprint without compromising on quality.
Backed by Kefeng Silicone's over two decades of experience in textile auxiliaries and its position as a leading manufacturer in China, this product embodies the company's commitment to innovation, quality, and customer satisfaction. For mills looking to stay competitive in an increasingly sustainability-conscious market, the Low-Temperature Soaping Agent (Energy-Saving Type) offers a reliable and effective solution.
