Selection and Application Guide for Anti-Mildew Agents for All-Polyester Fabrics Printing and Dyeing
I. Preface: Anti-mildew property of fully polyester fabric is a key requirement for the delivery of printed and dyed products
Fully polyester fabric is widely used in printed home textiles, sportswear, outdoor luggage, industrial filter cloth, etc. Polyester itself does not mold, but the residues of sizing, dyes, and oils left from printing and dyeing will cause mold growth in the fabric during high-temperature and high-humidity storage, ocean transportation, and rainy seasons, resulting in mold spots on the fabric surface, color bleeding on the printing, fabric odor, and decreased color fastness, leading to batch returns and losses.
Common textile anti-mold agents are not resistant to polyester at 160–180℃ high-temperature setting and are prone to failure at high temperatures, causing fabric yellowing, color shift, and odor. Therefore, the printing and dyeing industry needs to select special anti-mold agents that are resistant to high temperatures, do not affect printing, are resistant to washing, and are environmentally compliant. This article focuses on the fully polyester printing and dyeing special anti-mold agent of Dalian Tianwei chemical , sharing the selection standards, scenario solutions, and practical processes suitable for mass production.
II. Core Selection Criteria for Anti-mold Agents for Fully Polyester Printing and Dyeing
According to the characteristics of polyester printing and dyeing processes, a qualified anti-mold agent must meet five core requirements, which are also the core research standards of Dalian Tianwei Chemical Co.,Ltd products:
1. High heat stability, suitable for high-temperature setting processes
The fully polyester-specific anti-mold agent of Dalian Tianwei Chemical Co.,Ltd has excellent heat stability and can withstand 180℃ high-temperature setting and baking processes. It does not decompose, volatilize, or lose effectiveness in high-temperature environments, effectively avoiding yellowing of light-colored fabrics and printing bleeding problems.
2. High compatibility with printing and dyeing systems, does not affect fabric quality
The product is compatible with disperse dyes, water-based printing gel, and various printing and dyeing auxiliaries, with stable compatibility, no flocculation, no stratification, and no clogging of the printing screen. After addition, it does not change the original feel, breathability, and color tone of the fabric, and does not affect the clarity of printing and the color fastness of the fabric.
3. Long-lasting anti-mold performance after water washing, stable performance
The active ingredients can firmly combine with polyester fibers and do not have surface attachment protection. After multiple water washes, aging, and friction, the anti-mold performance is stable, with a mold resistance level of 0, effectively solving mold problems during product storage and end-use.
4. Comprehensive environmental compliance, suitable for domestic and export orders
The product has no formaldehyde, no heavy metals, no restricted harmful substances, low VOC, and complies with domestic and international industry standards such as GB 18401, OEKO-TEX 100, and REACH. It is equipped with complete testing qualifications to meet brand inspection, supermarket entry, and export customs declaration requirements.
5. Low addition and easy operation, suitable for automated mass production
The water-based liquid system is simple to dilute, disperses quickly, and is suitable for various processes such as immersion setting and printing in the same bath. The regular addition amount is only 0.2%–0.6%, with low dosage and controllable cost, without affecting the production line rhythm.
