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Thin multi-layer absorption core body and preparing method thereof

An absorbent core and multi-level technology, applied in the field of sanitary products, can solve the problems of the overall structure being too thick, not thin enough, destroying forest resources, etc., and achieve the effect of improving utilization rate, small weight and thin thickness

Inactive Publication Date: 2017-11-03
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention discloses a thin multi-level absorbent core and its preparation method in order to solve the technical problems that the existing absorbent core uses wood pulp as raw material to destroy forest resources, and the overall structure is too thick and not thin enough

Method used

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  • Thin multi-layer absorption core body and preparing method thereof
  • Thin multi-layer absorption core body and preparing method thereof
  • Thin multi-layer absorption core body and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The fluffy fiber layer adopts 45g / m 2 The hot-air fluffy non-woven fabric, the first polymer absorption layer and the second polymer absorption layer are made of 20-mesh superabsorbent resin, and the shunt liquid-guiding layer and shielding layer are shown in Table 1.

[0032] Table 1

[0033]

[0034] Preparation steps:

[0035] 1. The polypropylene filament fiber layer prepared by the spunbond method, the polypropylene ultrafine fiber layer prepared by the melt blown method and the polypropylene filament fiber layer prepared by the spunbond method are stacked together in turn, and sent to the hot rolling mill for internal determination. Form multi-layer non-woven fabrics, the temperature of the upper roll of the hot rolling mill is 134 °C, and the temperature of the lower roll of the hot rolling mill is 131 °C;

[0036] 2. Use a glue spraying machine to spray 0.35 g / m on the fine fiber surface (equal flow layer) of the multi-level non-woven fabric after hydrophil...

Embodiment 2

[0041] The fluffy fiber layer adopts 45g / m 2 The hot air fluffy non-woven fabric, the first polymer absorption layer and the second polymer absorption layer adopt 25 mesh superabsorbent resin, and the shunt liquid guide layer and shielding layer are shown in Table 2.

[0042] Table 2

[0043]

[0044] Preparation steps:

[0045] 1. The polypropylene filament fiber layer prepared by the spun-bonding method, the polypropylene ultra-fine fiber layer prepared by the melt-blown method and the polypropylene filament fiber layer prepared by the spun-bonding method are stacked together, and sent to a hot rolling mill for shaping. Multi-layer non-woven fabric, the temperature of the upper roll of the hot rolling mill is 144°C, and the temperature of the lower roll of the hot rolling mill is 138°C;

[0046]2. The hydrophilic polypropylene filament fiber layer prepared by spunbonding the low-melt index hydrophilic masterbatch and the polypropylene masterbatch with a melt index of 35...

Embodiment example 3

[0052] The fluffy fiber layer adopts 45g / m 2 The hot-air fluffy non-woven fabric, the polymer layer adopts 23 mesh super absorbent resin, and the shunt liquid-guiding layer and shielding layer are shown in Table 3.

[0053] table 3

[0054]

[0055] Preparation steps:

[0056] 1. The polypropylene filament fiber layer prepared by the spunbond method, the polypropylene ultrafine fiber layer prepared by the melt blown method and the polypropylene filament fiber layer prepared by the spunbond method are stacked together in turn, and sent to the hot rolling mill for internal determination. Form multi-level non-woven fabrics, the temperature of the upper roll of the hot rolling mill is 139°, and the temperature of the lower roll of the hot rolling mill is 143°;

[0057] 2. The distribution layer (air-through non-woven fabric) prepared by the 35 μm low-melting point sheath-core fiber layer, the melt-blown polypropylene superfine fiber layer and the flow equalization layer (air-...

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Abstract

The invention belongs to the field of sanitation articles, and relates to a thin multi-layer absorption core body and a preparing method thereof. The absorption core body sequentially and structurally comprises a flow dividing and liquid guiding layer, a first high-molecular absorption layer, a fluffy fiber layer, a second high-molecular absorption layer and a shielding layer. The flow dividing and liquid guiding layer comprises a flow dividing layer, an ultra-thin fiber moisture guiding layer and a flow equalizing layer. The shielding layer comprises a flow smoothing layer, an ultra-thin fiber flow shielding layer and a protecting layer. The bottom layer of the multi-layer absorption core body is the shielding layer composed of the flow smoothing layer, the ultra-thin fiber flow shielding layer and the protecting layer, liquid is longitudinally diffused when prevented from leaking downward, and thus the utilization rate of ultra-water-absorption resin is increased and it is guaranteed that liquid is free of reverse osmosis. According to the thin multi-layer absorption core body, a composite core body preparing device does not need to be refitted, meanwhile no wood pulp products are used, and the indirect forest protecting effect is achieved.

Description

technical field [0001] The invention belongs to the field of sanitary products, and relates to a thin multi-level absorbent core and a preparation method thereof. Background technique [0002] In disposable sanitary products such as diapers and sanitary napkins, the absorbent core is the key component, and its main function is to quickly absorb and store liquids; at present, there are mainly two types of absorbent cores used in diapers and sanitary napkins: one is traditional The wood pulp core is made of fluff pulp and super absorbent resin, which has a good diversion effect, but it is easy to break; the second is the composite core, which uses thick dust-free paper to wrap fluffy non-woven fabric and super absorbent resin, which will not appear Faults, but the absorption speed is slow, and it is easy to reverse osmosis; at present, these two types of absorbent cores have the problems of using a large amount of wood pulp materials, the overall structure is too thick, and th...

Claims

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Application Information

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IPC IPC(8): A61F13/531A61F13/15
CPCA61F13/15577A61F13/531A61F2013/530131A61F2013/530481
Inventor 张恒甄琪冯准记宋卫民
Owner ZHONGYUAN ENGINEERING COLLEGE
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