What are the testing standards for hot air through nonwoven topsheet?

The hot air non-woven fabric topsheet directly determines the softness, dry touch, and liquid permeability of diapers and sanitary napkins. It is a critical layer that comes into direct contact with the skin, therefore a complete set of testing standards is required.

The hot air nonwoven for diaper common core testing items include weight, thickness, tensile strength, and elongation. Stable stretching performance can ensure smooth feeding of fabrics on high-speed processing equipment and prevent them from breaking easily. Liquid penetration time and reflux rate are key indicators for evaluating the effectiveness of flow guidance and dryness, which greatly affect the user's wearing experience. Softness, breathability, and hydrophilic/hydrophobic properties are also important items that need to be confirmed. In addition to performance testing, security checks cannot be ignored. Heavy metals, formaldehyde, and fluorescent substances will be strictly tested to reduce the risk of skin irritation.

Reliable testing standards for Hot air nonwoven raw materials help effectively prevent leakage, skin redness and processing defects during continuous production, and maintain stable product quality.

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