Polylactic acid fiber sanitary napkin

Abstract

The invention belongs to the technical field of sanitary materials and relates to a polylactic acid fiber sanitary napkin which solves the problem of failure in complete degradation of sanitary napkins in the prior art. The polylactic acid fiber sanitary napkin comprises a water-permeable skin contacting layer, a guide layer, a water absorption layer, an anti-leakage breathable base film and an inner coating film sequentially from inside to outside. The water-permeable skin contacting layer and the guide layer are made of polylactic acid fiber nonwoven fabrics, the water absorption layer is made of 100% full wood pulp fiber coated macromolecular SAP (super absorbent polymer), and the base film and the inner coating film are made of bio-based degradable materials. The polylactic acid fiber sanitary napkin has the advantages that 1) due to adoption of the polylactic acid fiber nonwoven fabrics, functions of bacterial inhibition, odor elimination, moisture conductivity, breathability, softness, comfort and the like are achieved; 2) complete degradability for environment friendliness can be basically realized; 3) since an anion chip is arranged outside the water absorption layer, the napkin is capable of generating anions to promote healthcare performance.

Description

technical field [0001] The invention belongs to the technical field of hygienic materials, and relates to a polylactic acid fiber sanitary napkin, in particular to a polylactic acid fiber sanitary napkin with antibacterial, skin-friendly and comfortable functions. Background technique [0002] With the strengthening of social environmental awareness, the development and application of biodegradable polymers has attracted great attention. Polylactic acid (PLA) is a representative of plant-derived chemically synthesized biodegradable materials. It has good biocompatibility and safety, is non-toxic and harmless to the human body, and can be naturally degraded into carbon dioxide and water in the body and in the natural environment. In addition, the monomer of polylactic acid is lactic acid, which is fermented by probiotics from renewable resource starch (extracted from green plants such as corn and cassava), and the source of raw materials is very rich. [0003] At present, th...

AI Technical Summary

Problems solved by technology

[0003] At present, the non-woven fabrics used in disposable sanitary products such as sanitary napkins and paper diapers are mostly based on polyolefin resins, which are not degradable in the natural environment, resulting in serious "white pollution".

Furthermore, with the improvement of human living standards, consumers are increasingly aware of health and environmental protection, and the sanitary materials and sanitary products currently on the market do not have natural antibacterial and degradable functions, so there are secondary pollution and cross-infection hidden dangers, posing a potential threat to the health of users

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