Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of sanitary product absorbent core

A technology for absorbent cores and hygienic products, which is applied in the field of preparation of absorbent cores for hygienic products, and can solve problems such as poor control of absorption speed and rewet volume

Active Publication Date: 2022-07-05
福建恒安家庭生活用品有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the absorbent core produced by the existing process has the following defects: the absorbent core is generally a single-layer or double-layer structure, and the control of the contradictory relationship between the absorption speed and the amount of rewetting is poor, and the cell size is consistent in the length direction. Facilitate the diffusion of liquid to both sides

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of sanitary product absorbent core
  • Preparation method of sanitary product absorbent core
  • Preparation method of sanitary product absorbent core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The preparation method of the absorbent core of the sanitary article of the present invention:

[0057] The absorbent core is made by spraying the acrylic foam material prepared by the high internal phase emulsion method on the work surface; the acrylic foam material is made by mixing the first raw material and the second raw material; The said absorbent core is formed by spraying and accumulating layer by layer in the depth direction by using a nozzle of the same width as the absorbent core;

[0058] Among them, continuously adjust the ratio of the first raw material and the second raw material in the sprayed acrylic foam material, so that the cell diameter of each layer of the absorbing core gradually decreases from the middle to both sides in the length direction; and during the spraying process The vacuum degree provided by the work surface is increased layer by layer, so that the cell diameter of the absorbent core in the depth direction gradually decreases from bo...

Embodiment 2

[0071] This embodiment is an improvement on the basis of Embodiment 1, and the described method is specifically:

[0072] 31) Read the predetermined value table, which records the continuous change value of the ratio of the first raw material and the second raw material in each layer of the acrylic foam material of the absorbent core along the length direction of the core body, the corresponding The initial spraying amount of the nozzle, the thickness value of each layer of absorbing core and the vacuum degree of each layer;

[0073] 32) Spray layer by layer according to the predetermined value table, and provide a predetermined degree of vacuum through the work surface;

[0074] 33) Monitor in real time whether the thickness of the current layer of the absorbent core exceeds a predetermined threshold:

[0075] If it exceeds, reduce or increase the spraying amount of the next layer of absorbent core in proportion and spray the next layer;

[0076] If it does not exceed, spra...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of an absorbent core for sanitary products. The absorbent core is made by spraying an acrylate foam material prepared by a high internal phase emulsion method on a work surface; the acrylate foam The material is formed by mixing the first raw material and the second raw material; the absorbent core is formed by spraying and accumulating layer by layer in the depth direction by using a nozzle with the same width as the absorbent core; wherein, the sprayed acrylate hair is continuously adjusted. The ratio of the first raw material and the second raw material in the foam material, so that the cell diameter of each layer of the absorbent core gradually decreases from the middle to both sides in the length direction; and increases layer by layer during the spraying process. The vacuum degree of the absorbent core gradually decreases from bottom to top or from top to bottom in the depth direction of the absorbent core.

Description

technical field [0001] The present invention relates to a preparation method of an absorbent core of a sanitary article. Background technique [0002] The high internal phase emulsion method is used to prepare acrylate foam materials as the absorbent core of sanitary products (sanitary napkins, diapers), and has been widely used. [0003] However, the absorbent core produced by the existing technology has the following defects: the absorbent core generally has a single-layer or double-layer structure, the contradictory relationship between the absorption rate and the rewet amount is poorly controlled, and the size of the cells in the length direction is consistent, and the Facilitates the spread of liquid to both sides. SUMMARY OF THE INVENTION [0004] In order to overcome the above-mentioned defects, the present invention provides a novel preparation method of the absorbent core of a sanitary article. [0005] In order to achieve the above purpose, in the preparation m...

Claims

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/15D04H1/4382A61L15/18A61L15/24
CPCA61F13/15577A61F13/15585A61F13/15764A61F13/15772A61F13/15804D04H1/43835D04H1/43828A61L15/24A61L15/18A61F2013/15821A61F2013/16A61F2013/15934A61F2013/15967A61F2013/15991C08L23/06C08L33/16C08L33/24
Inventor 吴晓彪邱光益林一速
Owner 福建恒安家庭生活用品有限公司