Sanitary napkin containing middle convex core body and preparation method of sanitary napkin

Abstract

The invention relates to the technical field of hygienic products, and provides a sanitary napkin containing a middle convex core body and a preparation method thereof. The sanitary napkin comprises asanitary napkin body, and the sanitary napkin body comprises a liquid-permeable surface layer, a transmission layer, the middle convex core body and a leakage-proof bottom layer which are arranged ina laminated mode from top to bottom; the middle convex core body comprises a first absorption layer, a middle convex absorption layer and a second absorption layer from top to bottom, the middle convex absorption layer comprises a middle convex area and a non-middle convex area, and the mass ratio of fluff pulp absorbers in the middle convex area to fluff pulp absorbers in the non-middle convex area is larger than 3: 1. The fluff pulp absorbing body on the middle convex area is wrapped with absorbent paper, a gap is formed in the middle convex core body and penetrates through the middle convex core body, an outer ring flow guide groove and a straight strip flow guide groove are formed in the liquid-permeable surface layer, and permeation holes are formed in the liquid-permeable surface layer. The sanitary towel solves the problems that sanitary towels in the prior art are low in menstrual blood permeation and absorption speed, the surfaces of the sanitary towels are hard to keep dry,and side leakage and rear leakage are prone to occurring.

Description

technical field [0001] The invention relates to the technical field of sanitary products, in particular to a sanitary napkin with a convex core and a preparation method thereof. Background technique [0002] At present, there are some defects in the commercially available flat sanitary napkins. For example, the sanitary napkins cannot fit the menstrual blood excretion opening of the human body during use. When a tide occurs, the menstrual blood often cannot be absorbed in time and cause side leakage; another example is the flat sanitary napkins. There is no strengthening treatment at the corresponding position where the menstrual blood is excreted, and the speed at which the menstrual blood permeates downward from the surface of the sanitary napkin and is absorbed is limited, which cannot meet consumers' needs for dry and comfortable sanitary napkin products. Chinese patent application number: 201720013258.4 discloses a new type of absorbent body for sanitary napkins, which ...

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Problems solved by technology

[0004] Therefore, in view of the above content, the present invention provides a sanitary napkin containing a convex core, which solves the problem that the sanitary napkins in the prior art have a slow penetration and absorption rate of menstrual blood, and it is difficult to ensure that the surface of the sanitary napkin is dry. At the same time, the absorption capacity of the sanitary napkin is insufficient. When a large amount of menstrual blood is discharged, it is difficult to effectively absorb and lock, and side leakage and rear leakage are prone to occur

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