Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
Analysis of the effect of mask air permeability on its quality
In the past two years, due to the impact of the epidemic, the continuous development of science and technology, the continuous improvement of people's living standards, the increasingly serious environmental pollution, people's awareness of self-protection has been continuously strengthened, and masks are particularly common as protective equipment. The mask covers the mouth, nose and chin of the person so that the mask and the face closely fit, and the person inhales to force the air to filter out harmful substances when passing through the mask to achieve the protective effect. The air permeability of masks is one of the factors affecting their comfort and quality. The fabric air permeability tester is a testing equipment for measuring the air permeability of masks. (Hong Kong) Co., Ltd. is the manufacturer, please contact us. The fabric air permeability tester is used to test the air permeability of non-woven fabrics, meltblown fabrics, masks, special industrial fabrics, general fabrics, sponges, knitted fabrics, coated fabrics, non-woven fabrics and industrial filter paper. Applicable standards: GB/T 5453, ISO9237, AFNOR G07-111, ASTM 737, BS 5636, JIS L 1096-A, DIN 53887, etc. Main parameters: 1. Pressure range: 1～4000Pa; 2. Measurable air permeability: 1～40000mm/s; 3. Measurement error:≤±2%; 4. Measurable fabric thickness: customized according to the sample; 5. Suction volume adjustment: data feedback dynamic adjustment; 6. Sample area setting circle: sponge clamp; 7. Clamp size: 100mm*100mm. In addition, how much does the air permeability of the mask affect the quality? The non-woven fabrics are porous. Relevant studies have shown that the pore size is closely related to the air permeability of the fabric. Generally, the larger the average pore size of similar fabrics, the better the air permeability. There are obvious differences in the pore size and air permeability of different types of fabrics. The same type of fabric has different air permeability due to different fiber raw materials, yarn density, fabric structure, fabric warp and weft density and fabric thickness. Because the air permeability of double-sided knitted fabric is much lower than that of single-sided knitted fabric, the harmful substance barrier property of double-sided knitted fabric is very good. Because the non-woven fabric generally presents a single-fiber network structure, which has a greater air permeability function and a harmful substance permeation function, and the mesh non-woven fabric fiber has more contact surface area, so it has a stronger adsorption function. The air permeability of the fabric shows a clear and regular downward trend with the increase of the number of layers. Taking cotton fabrics as an example, the air permeability will decrease by about 50% from single layer to double layer; while the number of fabric layers is continuously added, the decrease tends to be steep; when the number of fabric layers is added to 6 layers, the air permeability is only single layer. 20% of the layer fabric. Therefore, the relationship between fabric pore size and number of layers and air permeability is particularly important in the design of protective masks. When the breathability of the mask is poor, the gas exhaled by the person cannot communicate with the outside world very well, resulting in the accumulation of exhaust gas in the mask, which makes it difficult for people to breathe and makes people feel uncomfortable; when the breathability of the mask is good, the gas exhaled can be extremely Good communication with the outside world, people will feel the breathing dredging.
The use of tensile tester manufacturers textile testing equipment is a great trend in today's world. What you should know is that it has become a very important part of business today.
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Cut resistance is one of the most critical performance indicators in personal protective equipment (PPE) testing, directly affecting worker safety in high-risk industries such as metal processing, machinery manufacturing, and emergency rescue. The TDM Cut Test Machine GT-KC28 plays a vital role in accurately evaluating the cut resistance of PPE products, including gloves, protective clothing, footwear materials, composite materials, rubber, and industrial textiles.
By adopting high-precision force control systems, intelligent data processing, and stable transmission technology, the GT-KC28 TDM Cut Tester can accurately measure the critical cutting force of materials and ensure excellent repeatability and comparability of test results. Its user-friendly touch-screen operation, comprehensive data storage, USB data export, and built-in thermal printer greatly improve laboratory efficiency and data traceability.
The TDM Cut Test Machine GT-KC28 fully complies with major international and national standards such as ISO 13997, EN 388, ASTM F2992/F2992M, ANSI/ISEA 105, and GB 24541-2022, making it a reliable solution for PPE manufacturers, third-party testing laboratories, and research institutions. Through precise and standardized cut resistance testing, the GT-KC28 helps reduce industrial cutting injuries, supports PPE certification across global markets, and ensures that protective equipment delivers reliable safety performance in real-world applications.
Ball Burst Method (ASTM D3787): Steel ball penetration for textiles/films using testers like GT-C02-2.
Hydraulic Method (ISO 13938.1): Fluid pressure on rubber diaphragm for industrial fabrics via GT-C12A.
Pneumatic Method (ISO 13938.2): Compressed air for breathable materials tested with GT-C12B.
Results are influenced by raw materials, yarn properties,
The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
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