The unidirectional moisture conduction performance of fabric materials means that when the water-repellent side of the fabric material is in a humid environment, the fabric material can absorb and conduct gaseous and liquid water, and quickly transfer the water from the water-repellent side to the hydrophilic side through capillary action, and diffuse and evaporate in the outer layer to keep the water-repellent side dry. At present, the main methods to realize the unilateral moisture conduction function of fabric materials are:Chemical methodwithStructural Design MethodBoth.
The chemical method is utilizedWater and oil repellentThe surface of the fabric is treated so that both sides of the fabric have different affinities for water, resulting in a wetting gradient to achieve the effect of unilateral moisture conduction, including single-sided hydrophilic finishing, single-sided hydrophobic finishing and hydrophilic and hydrophobic double-sided finishing.
The structural design method is to arrange the fibers in the thickness direction of the fabric according to different hydrophilicity through the reasonable configuration of fiber raw materials and fabric structures of different components when designing the fabric structure, so that the water can be transferred from the hydrophobic side to the hydrophilic side, and it is not easy to transfer it in reverse.
Unidirectional moisture finishing of non-woven fabrics can improve the discomfort of wetting and coldness when used as masks and surgical gowns. Non-woven fabrics with unidirectional moisture conduction are also widely usedOutdoor equipment, agricultural fabrics and construction fabricsMedium,It acts as a vapor barrier to prevent moisture from entering or back-infiltrating into the interior, and at the same time excretes the moisture generated inside, regulates the humidity of the internal environment, keeps it dry, and prevents mold growth.
A non-woven fabric manufacturer in Guangdong contacted us and wanted to develop a uni-directional moisture conduction function for the existing hydrophilic non-woven fabrics in the factory, which could be used in the production of protective equipment to improve the wearing comfort of the product. In order to avoid the adverse effects of high temperature processing on the non-woven sample, the technical staff selected FCB016 C6 with low processing temperature requirementsWater and oil repellentGives the non-woven fabric a good water repellency on the front side of the sampleThe non-woven fabric sample forms a hydrophilic and hydrophobic double-sided structure, so as to achieve a good unilateral moisture conduction effect for the customer's productThe process formula is as follows:
lCraft:Printing process.
lTexnology FCB016 C6 Water & Oil Repellent
lTexas GFF Crosslinker:
lTexas ZCD Thickener:
lFront empty screen printing waterproofing agent drying and baking (130 90s).