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Degradable sanitary napkin and preparation method thereof

A sanitary napkin and reverse osmosis technology, applied in the field of sanitary napkins, can solve the problems of non-degradable environmental pollution, unfavorable post-processing of sanitary napkins, non-degradable and other problems, and achieve the effect of excellent degradable performance, good moisture absorption rate, and easy degradation

Pending Publication Date: 2019-09-27
DONGGUAN CHUNXIA IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current sanitary napkins are mainly made of hot-air non-woven fabrics, melt-blown non-woven fabrics, spunlace non-woven fabrics and hot-rolled non-woven fabrics, all of which are non-degradable, which is not conducive to the post-processing of sanitary napkins after use. Degradability to cause environmental pollution

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
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  • Degradable sanitary napkin and preparation method thereof
  • Degradable sanitary napkin and preparation method thereof
  • Degradable sanitary napkin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] See Figure 1-4 , a degradable sanitary napkin, comprising a liquid-absorbent part 1, a leak-proof part 2, a waterproof bottom film 3 and two symmetrically arranged side wings 4, the liquid-absorbent part 1 includes water-soluble nonwoven fabrics arranged in sequence from top to bottom Cloth layer 11, water-soluble cotton layer 12, absorbent core layer 13 and reverse osmosis layer 14, the leak-proof member 2 extends outward from the surrounding edges of the reverse osmosis layer 14, and covers the water-soluble non-woven fabric layer 11 , the water-soluble cotton layer 12, the edge of the absorbent core layer 13 and folded to the upper surface edge of the water-soluble non-woven fabric layer 11, the two side wings 4 are symmetrically arranged on both sides of the leak-proof member 2, and the waterproof bottom film 3 is arranged on the lower surface of the reverse osmosis layer 14 and the lower surfaces of the two side wings 4, and the lower surface of the waterproof bot...

Embodiment 2

[0077] The difference between this embodiment and above-mentioned embodiment 1 is:

[0078] The composite absorbent fiber includes the following raw materials in parts by weight:

[0079]

[0080]

[0081] Each part of said inorganic filler includes 2 parts of mica powder, 2 parts of calcium carbonate, 1 part of talcum powder and 0.5 part of cordierite powder; every part of said coupling agent includes 2 parts of 3-aminopropyltrimethoxysilane, 0.5 part of γ-(2,3-epoxypropoxy)propyltrimethoxysilane, 1.5 parts of γ-methacryloxypropyltrimethoxysilane and 2 parts of isopropyl dioleic acid acyloxy (dioctyl Phosphoryloxy) titanate; the solvent is a mixture of isopropanol, ethanol, ethyl acetate and water in a weight ratio of 0.5:2:1:3.

[0082] Described water-soluble modified PVA resin comprises the raw material of following weight portion:

[0083]

[0084] The modified nano powder is prepared by the following steps:

[0085] Step A, adding the titanate coupling agent ...

Embodiment 3

[0106] The difference between this embodiment and above-mentioned embodiment 1 is:

[0107] The composite absorbent fiber includes the following raw materials in parts by weight:

[0108]

[0109] Every part of said inorganic filler includes 3 parts of mica powder, 3 parts of calcium carbonate, 1.5 parts of talcum powder and 0.8 part of cordierite powder; Every part of said coupling agent includes 2.2 parts of 3-aminopropyltrimethoxysilane, 0.8 part γ-(2,3-epoxypropoxy)propyltrimethoxysilane, 1.8 parts of γ-methacryloxypropyltrimethoxysilane and 2.5 parts of isopropyl dioleic acid acyloxy (dioctyl base phosphate acyloxy) titanate; the solvent is a mixture of isopropanol, ethanol, ethyl acetate and water in a weight ratio of 0.6:2.2:1:4.

[0110] Described water-soluble modified PVA resin comprises the raw material of following weight portion:

[0111]

[0112]

[0113] The modified nano powder is prepared by the following steps:

[0114] Step A, adding the titanate...

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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Abstract

The invention relates to the technical field of sanitary napkins, specifically to a degradable sanitary napkin and a preparation method thereof. The sanitary napkin comprises a liquid suction part, an anti-leakage part, waterproof bottom films and two symmetrically-arranged flanks; the liquid suction part comprises a water-soluble nonwoven cloth layer, a water-soluble cotton layer, an absorption core layer and a reverse osmosis layer which are sequentially arranged from top to bottom; the anti-leakage part extends outwards from the surrounding edge of the reverse osmosis layer, wraps the edges of the water-soluble nonwoven cloth layer, the water-soluble cotton layer and the absorption core layer, and is folded to the upper surface edge of the water-soluble nonwoven layer; the two flanks are symmetrically arranged on the two sides of the anti-leakage part; the waterproof bottom films are arranged on the upper surface of the reverse osmosis layer and the lower surfaces of the two flanks; a sticking layer is arranged on the lower surface of each of the waterproof bottom films. The degradable sanitary napkin provided by the invention has the benefits that the structure is novel and simple; with the adoption of the water-soluble nonwoven cloth layer and the water-soluble cotton layer, the degradability after the sanitary napkin is dissolved in water can be improved; in addition, the arranged anti-leakage part can not only wrap the edge of the liquid suction part, but also reduce and prevent the side leakage of the sanitary napkin. Therefore, the practicability is high.

Description

technical field [0001] The invention relates to the technical field of sanitary napkins, in particular to a degradable sanitary napkin and a preparation method thereof. Background technique [0002] Sanitary napkins are commonly used sanitary products during women's menstruation. The quality of sanitary napkins is related to women's health. Unqualified sanitary napkins can easily cause gynecological diseases. [0003] The current sanitary napkins are mainly made of hot-air non-woven fabrics, melt-blown non-woven fabrics, spunlace non-woven fabrics and hot-rolled non-woven fabrics, all of which are non-degradable, which is not conducive to the post-processing of sanitary napkins after use. Degradability will cause environmental pollution. On the other hand, the breathability, comfort, and side leakage prevention of sanitary napkins are the directions of research and development and improvement at present. Contents of the invention [0004] In order to overcome the shortco...

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
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Application Information

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IPC IPC(8): A61F13/476A61F13/53A61L15/18A61L15/24A61L15/28A61L15/40A61L15/42A61L15/62
CPCA61F13/476A61F13/53A61L15/42A61L15/62A61L15/28A61L15/24A61L15/40A61L15/18A61F2013/530299A61F2013/53035
Inventor 张春节
Owner DONGGUAN CHUNXIA IND CO LTD
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