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Composite absorption core body provided with imbibition self-expanding type liquid guiding channel and application thereof

A technology of absorbing core and channel, applied in the application, absorbing pad, manufacturing tools and other directions, can solve the problems of large amount of re-osmosis, swelling and hardening, user wear and so on, and achieves good dryness, fast liquid infiltration speed, The effect of no swelling and hardening

Active Publication Date: 2017-11-28
诺宸股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to solve the problems of slow absorption speed of the composite absorbent core, large amount of back seepage, expansion and hardening after absorbing liquid, and wear and tear caused by expansion to the user.

Method used

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  • Composite absorption core body provided with imbibition self-expanding type liquid guiding channel and application thereof
  • Composite absorption core body provided with imbibition self-expanding type liquid guiding channel and application thereof
  • Composite absorption core body provided with imbibition self-expanding type liquid guiding channel and application thereof

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preparation example Construction

[0066] The preparation method of the composite absorbent core of the present invention may, for example, comprise the following steps:

[0067] (1) Place a baffle at the middle of the width of the bottom layer on the upper side of the bottom layer along its length, and then spray the hot-melt structural adhesive layer with a glue sprayer;

[0068] (2) Sprinkle the liquid-absorbing swelling material for forming the lower water-absorbing layer on the upper side of the bottom layer sprayed with hot-melt structural adhesive, and then lay the middle absorbing layer on the upper part of the lower water-absorbing layer;

[0069] (3) On the lower side of the surface layer, spray the hot-melt structural adhesive layer with a glue sprayer and sprinkle the liquid-absorbing expansive material for forming the upper water-absorbing layer;

[0070] (4) covering the material obtained in step (3) on the middle absorbent layer of the material obtained in step (2) in such a way that the side of ...

Embodiment 1

[0092] The surface layer adopts a width of 9cm and a weight of 10g / m 2 dust-free paper, the upper absorbent layer adopts a weight of 140g / m 2, 20-mesh polymer water-absorbing resin, the middle absorbent layer adopts a weight of 35g / m 2 The hot air fluffy non-woven fabric, the lower absorbent layer adopts a weight of 140g / m 2 , 40-mesh polymer water-absorbing resin, the bottom layer is 9cm in width and 10g / m in weight 2 dust-free paper; the preparation steps are:

[0093] 1) Place a 1cm wide strip baffle on the upper side of the bottom layer in the middle of the bottom layer width along its length, and then spray 0.5g / m2 with a glue sprayer 2 Hot-melt structural adhesive layer;

[0094] 2) Sprinkle the upper and lower water-absorbing layers on the upper side of the bottom layer of the sprayed hot-melt structural adhesive layer, and then lay the middle absorbent layer on the upper part of the lower water-absorbing layer;

[0095] 3) Spray the hot-melt structural adhesive la...

Embodiment 2

[0098] The surface layer adopts a width of 10cm and a weight of 30g / m 2 dust-free paper, the upper absorbent layer adopts a weight of 140g / m 2 , 25-mesh polymer water-absorbing resin, the middle absorbent layer adopts a weight of 45g / m 2 The hot air fluffy non-woven fabric, the lower absorbent layer adopts a weight of 140g / m 2 , 80-mesh polymer water-absorbing resin, the bottom layer is 10cm in width and 30g / m in weight 2 dust-free paper; the preparation steps are:

[0099] 1) Place a 2.5cm wide strip baffle on the upper side of the bottom layer in the middle of the width of the bottom layer along its length, and then spray 1g / m2 with a glue sprayer 2 Hot-melt structural adhesive layer;

[0100] 2) Sprinkle the upper and lower water-absorbing layers on the upper side of the bottom layer of the sprayed hot-melt structural adhesive layer, and then lay the middle absorbent layer on the upper part of the lower water-absorbing layer;

[0101] 3) Spray the hot-melt structural a...

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Abstract

The invention discloses a composite absorption core body. The composite absorption core body comprises a surface layer, an intermediate layer and a bottom layer in sequence from top to bottom. The intermediate layer comprises a water absorption layer made of liquid absorption expansion materials expanding after absorbing liquid, and an imbibition self-expanding type liquid guiding channel is formed in the water absorption layer. The invention further relates to an application of the composite absorption core body in manufacturing of an absorption product, especially a paper diaper. The composite absorption core body has the advantages of being good in drying performance and free of lumping and fracture and other advantages; and especially, the liquid guiding channel has the characteristic of self-expanding after imbibition, so that the composite core body or the absorption product comprising the core body further has the advantages of high liquid infiltration and diffusion speeds, small infiltration return amount and the like.

Description

technical field [0001] The invention relates to the field of composite absorbent cores, in particular to a composite absorbent core with a liquid-absorbing self-expanding diversion channel and an application thereof. Background technique [0002] In the prior art, the composite absorbent core generally includes a surface layer, a bottom layer and an intermediate layer arranged between the surface layer and the bottom layer, and the absorbent material is fixed on the surface of the intermediate layer by means of bonding or the like. When the composite absorbent core touches liquid, the liquid passes through the surface layer to the middle layer, and is absorbed and retained by the absorbent material fixed on the middle layer to play the role of absorbing liquid. Thus, the amount of fluid that the absorbent core can absorb is determined by the amount and absorbent properties of the absorbent material. In this structure, since the absorbent material is usually distributed betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/537A61F13/15
CPCA61F13/535A61F13/53708A61F13/53756A61F13/5376A61F13/15577A61F2013/530708A61F2013/530481A61F2013/53778A61F13/537B23D17/00B23D35/001B23D17/06E02F3/965
Inventor 荣敏杰田云许永升于庆华荣帅帅
Owner 诺宸股份有限公司
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