The effective application of textile auxiliaries is crucial for achieving desired fabric properties. Cationic softener flakes, valued for their ability to impart superior softness and a pleasing hand feel, require precise handling for optimal performance. This guide provides expert insights into the application of these essential finishing agents within textile dyeing and washing plants, covering dilution methods and dosage considerations.

Cationic softener flakes are typically supplied in a solid, flake form. Before they can be applied to textiles, they must be properly dissolved to form a uniform paste or emulsion. There are two primary methods for dilution:

1. Cold Water Dilution: This method is preferred for its energy efficiency and simplicity. The flakes are gradually added to water at approximately 30°C. A ratio of 5-10% flakes to water is common. The mixture is stirred slowly for 3-5 minutes to allow the flakes to split. Subsequently, the mixture is left to stand for 1-2 hours, during which time the flakes fully dissolve. A final slow stir results in an even paste. This method is ideal for ensuring that cold water soluble laundry softener can be effectively utilized.

2. Warm Water Dilution: For faster dissolution or when working with specific formulations, warm water can be used. The flakes are added to room temperature water (5-10% ratio) and stirred for 3-5 minutes. The mixture is then heated to 50-60°C and stirred for 30-60 minutes until a uniform paste is formed. Cooling the paste is the final step.

Once the softener paste is prepared, it can be applied to the fabrics through various processes:

Padding Process: For this method, a dilute solution (often 2-3 g/L of the prepared paste) is used. Fabrics are passed through the padding bath, allowing for even saturation. This is typically done at temperatures between 30-40°C. The process can involve a single dip and pad or a double dip and pad depending on the desired level of softening.

Dipping Process: In this method, fabrics are immersed in the softener solution. The recommended dosage is usually 0.3-0.8% based on the dry weight of the fabric (o.w.f.), with a liquor ratio of 1:10 to 1:15. The treatment is carried out at temperatures between 40-50°C for approximately 15-30 minutes. This method is common in washing plants and dyeing plants for achieving a thorough softening effect.

Accurate cationic softener flakes dosage is crucial. Over-application can lead to a buildup of softener on the fabric, potentially affecting its absorbency or dye fastness. Under-application will result in insufficient softening. Therefore, adhering to recommended guidelines and conducting trials is essential. Brands like NINGBO INNO PHARMCHEM CO.,LTD. provide detailed technical data sheets to assist manufacturers in determining the optimal textile processing softener application parameters for their specific needs, ensuring consistent quality and customer satisfaction.