GB T 21655 Evaluation of moisture management performance of fabrics
The GB/T 21655 standard is a crucial benchmark in evaluating the breathability and moisture management capabilities of textiles, which are essential properties for garments used in various conditions. This standard provides a method to assess how effectively textiles manage sweat and moisture, ensuring comfort and hygiene. The testing procedure involves controlled conditions where fabrics undergo humidity cycling followed by drying cycles, simulating real-world wear and tear.
The test parameters include specific weight ranges of the fabric specimens, which are crucial for accurate results. Specimens should be cut to standard dimensions as per the guidelines provided in GB/T 21655. The testing apparatus must meet international standards such as ISO 9001 and EN ISO/IEC 17025, ensuring that the laboratory maintains high-quality processes.
The process begins with conditioning the fabric specimens under controlled humidity conditions to ensure uniformity before testing. During the test cycle, the fabrics are subjected to a series of humidification and drying cycles at specified temperatures and relative humidity levels. This cycle simulates the environmental conditions that textiles encounter during use, thereby evaluating their performance accurately.
The results obtained from this method provide valuable insights into the fabric's ability to manage moisture effectively. Compliance with these standards ensures that textile products meet quality benchmarks and customer expectations. The testing procedure also helps in identifying areas for improvement, which can enhance product performance and market competitiveness.
For instance, if a fabric fails to retain its breathability properties over time, it may lead to discomfort or dissatisfaction among consumers. By adhering strictly to GB/T 21655, manufacturers can ensure that their products perform well under various conditions, thereby maintaining customer satisfaction and trust.
The test results are reported in terms of mass loss percentage, which indicates the fabric's ability to manage moisture effectively. A lower mass loss percentage suggests better breathability and moisture management properties, indicating superior quality fabrics. This information is invaluable for quality managers, compliance officers, R&D engineers, and procurement teams who rely on such data to make informed decisions about product development, certification, and marketing.
- International Acceptance: GB/T 21655 has gained widespread recognition in the textile industry for its rigorous testing methodology. It is widely accepted in Asia, particularly in countries like China, India, and Japan, where it serves as a critical standard for ensuring product quality.
- Compliance: Many international brands have adopted this standard to ensure their products meet global standards of comfort and hygiene.
- Quality Assurance: Laboratories accredited under GB/T 21655 provide a reliable method for assessing fabric performance, which is essential for maintaining quality assurance in the textile sector.
The testing procedure outlined in GB/T 21655 ensures that textiles perform well in real-world conditions, providing comfort and hygiene. This standard plays a vital role in ensuring product quality and customer satisfaction, making it an indispensable part of the textile industry's quality assurance process.
