Facing the complex and ever-changing outdoor environment, outdoor sportswear not only keeps the body comfortable, but also ensures safety.
In the humid and hot mountains in summer, you need to wear breathable, sweat-wicking, cool and quick-drying underwear;
Densely forested mountain paths require water-proof and anti-fouling movable layers;
In stormy weather, windproof and waterproof outerwear is required that is completely waterproof, windproof and breathable.
Today, we will first talk about the performance requirements and testing of the perspiration layer from the inside out.
The main purpose of the sweat-wicking layer is to create a body environment away from moisture. When the human body generates heat during exercise and sweats a lot, it can absorb moisture and sweat, prevent sweat from accumulating in the inner layer, keep it dry, and achieve moisture conduction.
Moisture absorption and quick drying performance
Commonly used fiber components: chemical fiber and wool
Performance implementation method:
Fiber modification, such as Sophista (skin-core structure), Coolmax (special-shaped fiber), etc.;
Design yarn structure, such as Nucliex yarn (core yarn), etc.;
Design fabric structures, such as Phasic fabrics (reasonable arrangement of yarn structures), three-dimensional fabrics, Nick sphere fabrics, etc.;
Post-finishing technology, such as Evo Fin PSR (changing the hydrophobic surface of polyester fiber into a hydrophilic surface), etc.
Testing standards:
Detailed explanation of test standards:
GB/T 21655.1-2008 “Evaluation of moisture absorption and quick-drying properties of textiles – Part 1: Single combination test method”
Test principle: Choose 5 individual tests to comprehensively evaluate the moisture absorption and quick-drying performance of textiles. Among them, water absorption, drip diffusion time, and wicking height represent hygroscopicity; evaporation rate and moisture permeability represent quick-drying properties.
Test evaluation:
Check the test results of each item one by one. If they all meet the requirements, it can be called a “moisture-absorbing and quick-drying” product.
GB/T 21655.2-2009 “Evaluation of moisture absorption and quick-drying properties of textiles – Part 2: Dynamic moisture transfer method”
Testing principle:
Place the sample of the specified size on the liquid water dynamic transfer performance tester, monitor the movement of the liquid in the fabric structure in real time, and record the relevant data (wetting time, water absorption rate, maximum soaking radius, liquid water diffusion speed, single Transfer index, liquid water dynamic transfer comprehensive index) to evaluate the moisture absorption, quick-drying and perspiration performance of textiles.
Test evaluation:
According to the rating of each performance index value measured by the instrument, refer to Table 3 after grading to finally determine the textile performance (moisture absorption and quick drying/moisture wicking).
The testing principles of AATCC 195-2012 are similar to GB/T 21655.2-2009.
For the moisture absorption and quick-drying performance test, you can choose either a single combination test or the liquid water dynamic transfer performance test. It is recommended that you refer to GB/T 21294-2014 “Testing Methods for Physical and Chemical Properties of Clothing” when choosing a test method. Among them, the moisture absorption and quick-drying performance The test method is GB/T 21655.1-2008.
The article comes from: CTI Testing
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