Absorbent core of absorbent article and its manufacturing process

Abstract

The invention discloses an absorbent core of an absorbent article and a manufacturing process thereof, wherein the absorbent core of the absorbent article comprises an upper wrapping layer, an absorbent core layer, a lower wrapping layer, and an upper wrapping layer and a lower wrapping layer. The first viscose group bonded to the wrapping layer, the absorbent core layer includes the first absorbent core layer, the first fiber layer and the second absorbent core layer arranged in sequence from top to bottom; the first viscose group includes At least two groups of first viscose bodies arranged at intervals along the length direction of the absorbent core, the length of the first viscose bodies matches the width of the absorbent core body, and the at least two groups of first viscose bodies will absorb The core body is divided into at least three sections from the length direction, and the absorbent core layer located in the middle section between the front section and the rear section also includes a layer arranged sequentially from top to bottom between the first fiber layer and the second absorbent core layer. The third absorbent core layer and the second fiber layer.

Description

technical field [0001] The invention relates to the field of sanitary products, in particular to an absorbent core of an absorbent product and a manufacturing process thereof. Background technique [0002] Absorbent articles such as paper diapers and sanitary napkins are commonly used sanitary products. Generally, such absorbent articles consist of three main parts: a surface cover, an absorbent core, and a base fabric. The surface coating layer can also be called a coating layer or a water-permeable surface layer. The coating layer is close to the user's body, which can promote the rapid penetration of urine and effectively prevent back seepage, so that the surface layer of the diaper can be kept dry. At present, the covering layer of diapers in the domestic market is basically a non-woven surface layer. The breathable non-woven fabric can improve the air permeability inside the diaper, and the water vapor can circulate outside the diaper, and the moisture and heat can be ...

AI Technical Summary

Problems solved by technology

[0004] In these methods, the composition of the absorbent core still adopts the traditional upper and lower wrapping layers, the absorbent core layer between the upper and lower wrapping layers, and the upper viscose for bonding the absorbent core layer and the upper wrapping layer. layer, the lower viscose layer for bonding the absorbent core layer and the lower wrapping layer, while the absorbent core layer is still composed of the middle fluffy non-woven fabric layer and the upper polymer water-absorbing layer respectively located on the upper and lower surfaces of the middle fluffy non-woven fabric layer. The resin layer and the lower polymer water-absorbing resin layer are composed. In this way, the entire absorbent core has seven layers, and the two layers of viscose layer adopt the full spray method, which increases the thickness of the entire absorbent core and is not conducive to the absorption of the absorbent core. Similarly, the fluffy non-woven fabric layer also increases the thickness, but the diffusion and absorption effects are not good; and, the existing polymer water-absorbing resin layer has the same thickness on the entire core body, so that the front and rear sides of the absorbent core body have the same thickness. The utilization rate of the polymer water-absorbent resin in the middle section of the absorbent core is low, and the polymer water-absorbent resin located in the middle section of the absorbent core (urine point) is overutilized, resulting in poor diffusivity in the middle section

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