High molecular material layer with water absorbability and hygienic product with water absorbability

Abstract

The invention discloses a high molecular material layer with water absorbability, and the high molecular material layer comprises a high molecular foaming framework and a high water-absorbing resin, wherein the high molecular foaming framework is prepared by adopting a physical or chemical foaming method and is provided with a mutually-through open pore structure; the specific pore volume is 5-200 mL/g and the aperture ratio is 50-100%; the high water-absorbing resin is adhered or embedded on the pore wall of the open pore structure; each cubic meter of the high molecular material layer contains 2-200 kg of the high water-absorbing resin; and the water retaining capacity of the high molecular material layer is not less than 5 g/g. By utilizing the scheme, the high water-absorbing resin is attached to the pore wall of the high molecular foaming framework in an adhering and embedding manner, so that the high water-absorbing resin is swollen to lock body fluid when the high water-absorbing resin is contacted with the body fluid. When a user walks, the high water-absorbing resin does not relatively displace in a sanitary product, so that the deformation of the sanitary product is reduced to the greatest extent and gel which absorbs the fluid is not clustered.

Description

technical field [0001] The invention relates to a water-absorbing high-molecular material layer, and water-absorbing sanitary products that are in contact with the human body, such as sanitary napkins, paper diapers, sanitary pads, and hemostatic pads, made from the high-polymer material layer. Background technique [0002] Absorbent sanitary products include sanitary napkins, paper diapers, sanitary pads and other products. These products generally have three main functional layers, namely, the surface layer that can penetrate body fluids, the absorbent core layer that can absorb and store body fluids, and The base layer that blocks the leakage of body fluids. The surface layer is generally non-woven fabric or perforated film material, the absorbent core layer is mainly composed of fluff pulp, super absorbent resin (SAP) and other materials, and the bottom layer is polyethylene film or a composite material of polyethylene film and non-woven fabric. After SAP comes into con...

AI Technical Summary

Problems solved by technology

The hygienic products after deformation will reduce the performance of repeated absorption and retention of body fluids, and are more prone to side leakage and leakage of body fluids

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