Super-absorbent fiber multi-layer gradient structure absorbent core layer

Abstract

The invention relates to a super-absorbent fiber multi-layer gradient structure absorbent core layer which comprises a first layer, a second layer and a third layer. The first layer, the second layerand the third layer are sequentially laminated together. The first layer is composed of viscose and an ES fiber material, the second layer and the third layer are separately composed of viscose and super-absorbent fiber materials with different proportions, and the structures of the three layers are different. According to the super-absorbent fiber multi-layer gradient structure absorbent core layer, while the basic liquid absorption of paper diapers or feminine sanitary napkins can be achieved, the requirements of small re-infiltration, fast absorption, uniform diffusion, and resistance to lumping and faulting after liquid absorption are met.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented technology provides an improved design for disposable hygiene products that includes two layers: one consisting mainly of materials like cotton fibers (C) with high surface area per unit weight and hydrophilic properties; another part called PSA resorvoir made from polymethylmeth acrylate copolymer(PMAA)). These components help improve fluid management by allowing fluids quickly into contact with them before being absorbed inside it. Additionally, this new design allows for more efficient use of space within these articles due to its ability to prevent leakage during use.

Problems solved by technology

In this patented technical solution described in the current design of disposable diapers that contain multiple layers containing different types of materials like fibrous or foam padding, synthetic fibres (SAF) or other porous polymeric structures called hydrogel), and polyethylene gelling agent(PGA). These components can cause issues such as poor fluid distribution due to their size differences between them, difficulty forming homogeneous mixtures when adding these ingredients, and potential damage caused by excess pressure from body weight overuse.

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