3D (three-dimensional) absorbent core body

Abstract

The invention relates to the field of disposable hygienic products, in particular to a 3D (three-dimensional) absorbent core body. The 3D absorbent core body comprises a base body, an upper cladding layer and a lower cladding layer, wherein the lower cladding layer extends upwards from two sides to form folding parts, and the folding parts cover the upper cladding layer; the base body comprises amain absorbent core layer, a fluffy non-woven fabric layer or diversion non-woven fabric layer, a lower high-absorption resin layer, and a bottom wood pulp fiber layer which are sequentially stacked from top to bottom; the main absorbent core layer at least comprises an upper wood pulp fiber layer, a wood pulp fiber and high-absorption resin mixing layer and a lower wood pulp fiber layer which aresequentially arranged from top to bottom, a left row of diversion trenches and a right row of diversion trenches are arranged in the base body, and each row of diversion trenches consists of a plurality of short diversion trenches; and the folding parts and the upper cladding layer sink at the positions of the short diversion trenches, and the folding parts and the lower cladding layer have partswhich are bonded with each other. The technical problem that the transverse diffusion effect and ventilation are difficult to improve when an existing multi-layer composite absorbent core body performs absorption for two times or more is solved.

Description

technical field [0001] The invention relates to the field of disposable sanitary products, in particular to a 3D three-dimensional absorbent core. Background technique [0002] The applicant disclosed in CN201810863864.4 an absorbent core for diapers, including a body, an upper coating layer covering the upper surface of the body, and a lower coating layer covering the lower surface of the body. The lower coating layer consists of two sides Extending upward to form a folded portion, the folded portion is covered on the upper cladding layer, the body includes a plurality of layers of wood pulp fiber layers stacked in sequence from top to bottom, a first mixed layer, and between each wood pulp fiber layer A second mixing layer is provided, and a through diversion groove is provided on the body, the folded part and the upper cladding layer are sunken up and down at the position of the diversion groove, and the folded part is bonded to the lower cladding layer. It solves the te...

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Problems solved by technology

[0003] Therefore, in view of the above problems, the present invention proposes a 3D three-dimensional absorbent core, which solves the technical problem that the existing multi-layer composite absorbent core is difficult to improve the lateral diffusion effect when absorbing more than two times, and the utilization rate of the core is relatively low. Low, unable to reach high utilization levels, such as above 80%

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