The main purpose of conducting quality inspection on non-woven fabric products is to strengthen product quality management, improve the quality level of non-woven fabric products, and prevent non-woven fabric products with quality problems from entering the market. As a non-woven fabric production enterprise, only through the mechanism of survival of the fittest in market competition and doing a good job in quality inspection of non-woven fabric products can enterprises improve the processing quality of non-woven products and enhance their market competitiveness.
Quality inspection requirements for non-woven fabric products
1. The stretchability and wear resistance of the fabric.
2. The color fastness of the fabric after friction and the color fastness after washing.
3. Anti static and combustion performance of fabrics.
4. Moisture regain, air permeability, moisture permeability, oil content, and fabric purity.
Main testing items for non-woven fabrics
1. Color fastness testing: color fastness to water washing, color fastness to rubbing (dry and wet), color fastness to water, color fastness to saliva, color fastness to light, color fastness to dry cleaning, color fastness to sweat, color fastness to dry heat, color fastness to heat compression, color fastness to chlorine water, color fastness to brushing, and color fastness to chlorine bleaching
2. Physical performance testing: tensile breaking strength, tear strength, seam slip, seam strength, bursting strength, anti pilling and pilling resistance, wear resistance, fabric density, weight, thickness, width, weft inclination, yarn count, moisture regain, single yarn strength, appearance after washing, dimensional stability
3. Functional testing: breathability, moisture permeability, combustion performance, waterproof performance (static water pressure, splashing, rain), electrostatic testing
4. Chemical performance testing: determination of pH value, composition analysis, formaldehyde content, azo testing, heavy metals.
Quality standards for non-woven fabrics
1、 Physical performance indicators of non-woven fabrics
The physical performance indicators of non-woven fabrics mainly include: thickness, weight, tensile strength, tear strength, elongation at break, air permeability, hand feel, etc. Among them, weight, thickness, and texture are one of the most important indicators that consumers pay attention to, directly affecting the cost and market competitiveness of non-woven fabrics. Therefore, manufacturers must control these indicators.
Tensile strength, tear strength, and elongation at break are important indicators reflecting the tensile, tear resistance, and elongation properties of non-woven fabrics, directly determining their service life and function. When testing these indicators, national or industry standards must be followed.
The air permeability index is an indicator reflecting the breathability of non-woven fabrics, which has high requirements for certain applications such as sanitary napkins and diapers. The air permeability standards vary in different application fields. The air permeability standard for the Japanese hygiene industry is 625 milliseconds, while the Western European standard requires it to be between the 15-35 agreement numbers.
2、 Chemical composition indicators of non-woven fabrics
The chemical composition indicators of non-woven fabrics mainly include the content and molecular weight distribution of materials such as polypropylene, polyester, and nylon, as well as the types and contents of additives. The indicators of chemical composition have a significant impact on the performance and application of non-woven fabrics. Excessive additives can affect the mechanical properties and thermal stability of non-woven fabrics.
3、 Microbial indicators of non-woven fabrics
Microbial indicators are indicators used to evaluate the hygiene quality of non-woven fabrics, including total bacterial count, coliform, fungi, molds, and other indicators. Microbial contamination can affect the application range and service life of non-woven fabrics. Therefore, strict control standards and inspection methods must be mastered during the production process.
The purpose of quality inspection for non-woven fabric products is to strengthen the quality assurance work of enterprise products. Therefore, in order to ensure the processing quality of non-woven fabric products, all departments and production processes of Dongguan Liansheng non-woven fabric adhere to the principle of not using unqualified raw materials and strictly follow the quality inspection requirements of non-woven fabric products!
Post time: Mar-25-2024