The textile industry continuously seeks innovative solutions to enhance the quality and durability of dyed and printed fabrics. Among the crucial steps in the dyeing and printing process, fixation plays a paramount role in ensuring the permanence of colors. Particularly for reactive dyes on cotton textiles, achieving high levels of wet fastness, washing fastness, and rubbing fastness is a significant challenge. Traditional fixing agents, while effective, sometimes contain undesirable chemicals like formaldehyde, raising environmental and health concerns.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to providing the textile industry with advanced chemical auxiliaries that meet both performance and sustainability requirements. In response to the growing demand for greener solutions, we have developed and are proud to offer a high-performance, formaldehyde-free fixing agent specifically designed for reactive dyeing and printing on cotton fabrics.

Our Formaldehyde-Free Fixing Agent is a specially formulated liquid chemical composed of carefully selected organic compounds. It presents as a light yellow to brown-red liquid with a typical pH range of 4 to 5 (in a 1% aqueous solution). Possessing cationic ionicity, it demonstrates excellent solubility in water and resistance to both alkali and hard water conditions, ensuring stable performance in various processing environments. With a solid content of approximately 40%, it offers a concentrated solution for efficient application.

The performance characteristics of this advanced fixing agent are designed to deliver superior results. Primarily, its formaldehyde-free nature makes it an environmentally conscious choice, aligning with stricter global regulations and consumer demand for safer textiles. Beyond its eco-friendly profile, it is highly effective in fixing active or direct dyes, showing particular efficacy with challenging deep shades such as red, dark brown, blue, and black. These colors are often the most difficult to achieve high fastness levels with, making our agent an invaluable tool.

Utilizing this fixing agent significantly enhances the durability of the treated fabric. Users will observe a marked improvement in wet fastness, reducing color bleeding when the fabric is wet. Similarly, it boosts washing fastness, ensuring colors remain vibrant and do not fade or run during laundering. Furthermore, it improves rubbing fastness, minimizing the transfer of color to other surfaces or garments through friction. These enhanced fastness properties contribute directly to the lifespan and aesthetic appeal of the final textile product.

Importantly, while delivering these robust fastness improvements, our fixing agent has a negligible impact on the fabric's light fastness, ensuring that exposure to light does not cause premature fading. A common concern with some fixing agents is their potential to stiffen the fabric; however, our formulation is designed to maintain the original soft hand feel of the material, which is crucial for wearable textiles and home furnishings. It also ensures that the original color shade is preserved with minimal alteration, allowing dyers and printers to achieve their intended hues accurately.

The scope of application for this Formaldehyde-Free Fixing Agent is specifically targeted towards the fixation needs of reactive dyeing and reactive printing processes on cotton textiles. Cotton, being a widely used natural fiber, is often dyed with reactive dyes due to their vibrant colors and strong covalent bond with the cellulose fiber. Our fixing agent strengthens this bond, providing the necessary post-treatment to lock in the color effectively and prevent leaching.

Application processes can vary based on equipment and desired outcomes, but typical methods include dipping and padding/rolling. For reference, in a dipping process, a general dosage ranging from 0.15% to 0.4% based on the weight of the fabric (o.w.f.) is recommended. Maintaining a pH level between 5 and 7 and operating within a temperature range of 40°C to 60°C for 20 to 30 minutes will yield optimal results. For a rolling and solidification process, a general dosage of 1.5-5g/L is suggested, with the precise amount adjustable based on the fabric color depth and its inherent washing fastness requirements. Customization of the process parameters is always possible to fine-tune results for specific fabric types and dye formulations.

Proper preparation of the dyed material is essential before the fixation step. It is crucial that dyed materials are thoroughly washed and soaped to remove unfixed dye and impurities. This ensures that the fixing agent can effectively interact with the remaining fixed dye and the fiber, maximizing its performance. Failing to adequately wash and soap can lead to poor fixation results and reduced fastness properties.

A key precaution when using this cationic fixing agent is to avoid its use in the same bath with anionic substances. Anionic chemicals can interact negatively with the cationic fixing agent, neutralizing its charge and significantly reducing or eliminating its ability to effectively fix the dyes. Therefore, careful consideration of the compatibility of all auxiliaries used in the final bath is necessary to preserve the superior fixing properties of this product.

For packaging and storage, our Formaldehyde-Free Fixing Agent is typically available in 160KG plastic drums, though customized packaging options can be accommodated based on customer needs. To maintain product efficacy, it should be stored in a cool, dry, and well-ventilated environment. Under recommended storage conditions at room temperature, the product retains its efficacy for a period of 12 months.

Choosing the right chemical supplier is paramount for consistency and quality in textile processing. NINGBO INNO PHARMCHEM CO.,LTD. stands as a reliable partner, offering not just high-quality products but also the technical support needed to achieve the best results. When considering where to find a reputable manufacturer and supplier for this essential textile auxiliary, look no further. Understanding the market, we offer this high-performance Formaldehyde-Free Fixing Agent at a competitive price. For businesses looking to efficiently buy or purchase this product, NINGBO INNO PHARMCHEM CO.,LTD. facilitates straightforward transactions and reliable logistics. We encourage interested parties to reach out for detailed product specifications, safety data sheets, current price lists, and information on how to place an order or request a sample. Partner with NINGBO INNO PHARMCHEM CO.,LTD. for your textile chemical needs and experience the benefits of working with a dedicated industry leader committed to quality and innovation in textile finishing.