Absorption core and preparation method of absorption core

A technology for an absorbing core and a manufacturing method, which is applied in the fields of absorbing pads, medical science, clothing, etc., can solve the problems of hard spot phenomenon, blocking the mesh of the forming mesh belt, and increasing the production cost.

Active Publication Date: 2020-02-18
FUJIAN HENGAN HLDG CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (1) The sandwich type can easily cause gel adhesion and hard spots after the polymer superabsorbent resin absorbs water, and even cause interlayer sliding;
[0009] (2) The uniform mixing of water-absorbent fiber and polymer superabsorbent resin will cause the loss of polymer superabsorbent resin during the production process, and a considerable part of it will remain on the forming mesh belt, which will cause waste of polymer superabsorbent resin on the one hand. , increase the production cost; on the other hand, it

Method used

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  • Absorption core and preparation method of absorption core
  • Absorption core and preparation method of absorption core
  • Absorption core and preparation method of absorption core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The upper layer of spunbonded nonwoven fabric 1 is alternately treated with hydrophilic and water repellent, and the width of hydrophilic ( figure 1 Middle black part) 4mm, water repellent width ( figure 1 Medium white part) 5mm;

[0037] The lower layer of spunlace non-woven fabric is also alternately treated with hydrophilic and water-repellent, and the water-repellent width ( figure 1 Medium white part) 4mm, hydrophilic width ( figure 1 Middle black part) 5mm.

[0038] A row of superabsorbent fibers 22 is arranged on the hydrophilic treatment part of the upper spunbonded non-woven fabric, and a row of superabsorbent resin 21 is arranged between two adjacent rows of superabsorbent fibers.

Embodiment 2

[0040] The upper layer of spunbonded nonwoven fabric 1 is alternately treated with hydrophilic and water repellent, and the width of hydrophilic ( figure 1 Middle black part) 5mm, water repellent width ( figure 1 Medium white part) 5mm;

[0041] The lower layer of spunlace non-woven fabric is also alternately treated with hydrophilic and water-repellent, and the water-repellent width ( figure 1 Medium white part) 5mm, hydrophilic width ( figure 1 Middle black part) 5mm.

[0042] A row of superabsorbent fibers 22 is arranged on the hydrophilic treatment part of the upper spunbonded non-woven fabric, and a row of superabsorbent resin 21 is arranged between two adjacent rows of superabsorbent fibers.

[0043] In this example, in the hydrophilic part of the upper non-woven fabric, the degree of hydrophilicity is weak in the middle and gradually increases toward both sides; the water-repellent part is strong in the middle and gradually weakens toward both sides.

Embodiment 3

[0045] 1) Prepare the upper layer

[0046] The upper layer of spunbonded nonwoven fabric 1 is alternately treated with hydrophilic and water repellent, and the width of hydrophilic ( figure 1 Middle black part) 4mm, water repellent width ( figure 1 Medium white part) 4mm;

[0047] Among them, in the hydrophilic part, the degree of hydrophilicity is weak in the middle and gradually increases toward both sides; the water-repellent part is strong in the middle and gradually weakens toward both sides.

[0048] 2) Prepare the lower layer

[0049] The lower layer of spunlace non-woven fabric 3 is also alternately treated with hydrophilic and water-repellent, and the water-repellent width ( figure 1 Medium white part) 3mm, hydrophilic width ( figure 1 Middle black part) 4mm.

[0050] 3) Prepare the middle layer

[0051] Prepare hydrophilic hollow foam 23;

[0052] Close one end of the hydrophilic hollow foam;

[0053] The superabsorbent resin 21 is placed in the hydrophilic h...

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Abstract

The invention discloses an absorption core and a preparation method of the absorption core. The absorption core comprises an upper layer spunbond nonwoven, a lower layer spunlace nonwoven and an absorption layer arranged between the two layers of the nonwovens, wherein the absorption layer consists of a high-water-absorption resin column and a super water absorbent fiber column which are arrangedalternatively; the part corresponding to the high-water-absorption resin column, on the upper layer nonwoven is a water repellency treatment column, and the part corresponding to the super water absorbent fiber column is the hydrophilic treatment column; and on the lower layer nonwoven, at least the part corresponding to the high water absorption resin column is a hydrophilic treatment column, andthe part corresponding to the super water absorbent fiber column is the water repellency treatment column. Hydrophilic treatment and water repellency treatment are performed alternatively, liquid infiltration can be guaranteed, the hydrophilic area can be reduced, and reverse osmosis is reduced. Because liquid is uniformly distributed in the absorption core, emergence of local nuggets can be avoided, and high softness can be obtained.

Description

technical field [0001] The invention relates to an absorbent core and a method for making the absorbent core Background technique [0002] Thus, the amount of fluid that the absorbent core can absorb is determined by the amount of absorbent material. However, in this structure, since the absorbent material is usually only distributed between the surface layer and the middle layer and between the bottom layer and the middle layer, the distribution amount of the absorbent material is relatively limited, which is one of the disadvantages. The second disadvantage is that after the absorbent material absorbs a large amount of liquid, it often causes separation between the top layer or bottom layer and the middle layer, and a large amount of absorbent material will escape from the sides of the absorbent core. [0003] The absorbent core is the most critical and important part of a disposable absorbent product. The performance of disposable absorbent articles, such as water absor...

Claims

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Application Information

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IPC IPC(8): A61F13/15A61F13/53A61F13/532A61F13/537A61F13/539A61F13/513A61F13/514
CPCA61F13/15A61F13/51305A61F13/51484A61F13/53A61F13/532A61F13/53717A61F13/5376A61F13/539A61F2013/530481A61F2013/530708A61F2013/5395
Inventor 吴晓彪翁文伟罗梅芳王伟
Owner FUJIAN HENGAN HLDG CO LTD
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