Multilayer concave-convex embossed non-woven fabric and production method thereof

Abstract

The invention discloses a multilayer concave-convex embossed non-woven fabric. The multilayer concave-convex embossed non-woven fabric comprises a hydrophobic layer, a diversion layer and a hydrophilic layer, wherein the diversion layer is arranged between the hydrophobic layer and the hydrophilic layer; the diversion layer is bonded with the hydrophilic layer; the hydrophobic layer and the hydrophilic layer are bonded in a pressing mode; the hydrophobic layer is provided with a concave-convex shape. The invention further discloses a production method of the multilayer concave-convex embossednon-woven fabric. According to the multilayer concave-convex embossed non-woven fabric produced by the process, the surface hydrophobic layer has the functions of unidirectional rapid flow guidance and hydrophobicity, the concave part is beneficial to sliding infiltration and diffusion of liquid, and the convex part is beneficial to reducing the contact area with human skin, enhancing the air permeability and keeping the surface hydrophobic layer dry; the middle diversion layer has the function of rapid diversion, and can quickly introduce water from the surface layer, and lead the water intothe bottom layer; the bottom hydrophilic layer is matched with the middle diversion layer to well improve the diffusion, permeation and reverse permeation of liquid. When the multilayer concave-convexembossed non-woven fabric provided by the invention is applied to disposable sanitary articles, the dryness, air permeability, water absorption and comfort of contacting the surface of skin can be improved.

Description

technical field [0001] The invention relates to the field of non-woven fabrics, in particular to a multi-layer concave-convex embossed non-woven fabric and a production method of the multi-layer concave-convex embossed non-woven fabric. Background technique [0002] Non-woven fabric is composed of directional or random fibers. It is a new generation of environmentally friendly materials. Recycling and other characteristics are widely used in modern industry. [0003] There are defects in the structure of the existing non-woven fabrics. The existing non-woven fabrics are either all water-repellent fiber cloths or all hydrophilic fiber cloths. The non-woven fabrics of this structure make them lack of comfort during use. feel. Moreover, the existing multi-layer non-woven fabrics are mostly compounded with glue. If glue is used, a large amount of glue needs to be used, which not only increases additional material costs, but also glue is a chemically synthesized material with c...

AI Technical Summary

Problems solved by technology

[0003] There are defects in the structure of the existing non-woven fabrics. The existing non-woven fabrics are either all water-repellent fiber cloths or all hydrophilic fiber cloths. The non-woven fabrics of this structure make them lack of comfort during use. sense

Moreover, the existing multi-layer non-woven fabrics are mostly compoun

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