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Paper diaper absorption core layer and production process thereof

A technology of absorbing core layer and production process, applied in the field of diapers, can solve the problems of increasing the difficulty of production and processing, low softness, poor applicability and experience, achieve good environmental and economic benefits, improve water retention value and The effect of performance strength, excellent bulk and air permeability

Inactive Publication Date: 2021-05-04
王忠良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the patent CN111035505A, an ultra-thin diaper core and its manufacturing process are disclosed, including the main body, which includes wood pulp spunlace cloth, absorbent upper layer, fluffy non-woven fabric, absorbent lower layer, and viscose spunlace cloth sequentially stacked. , the absorption upper layer includes two second SAP layers located in the middle, a first SAP layer located at the outside of the two second SAP layers, a first gap is provided between the two second SAP layers, each first SAP layer and A second gap is provided between adjacent second SAP layers, and the lower absorbent layer includes two third SAP layers arranged in the middle, a fourth SAP layer arranged outside the two third SAP layers, and two third SAP layers There is a third gap between them, and a fourth gap is set between each third SAP layer and the adjacent fourth SAP layer, which solves the problem that the existing composite absorbent paper has low softness and slow absorption speed due to physical compression. , the technical problem that the effective utilization rate of polymers is not high, and a method for making an ultra-thin diaper core is also proposed
[0008] The above-mentioned invention mainly uses multi-layer fiber layers and water-absorbing resin to process and produce a diaper core. The produced diaper core is likely to cause lumps, decrease in strength, and prone to reverse reactions due to the poor combination of fibers and water-absorbing resin. Penetration, children are prone to problems such as red buttocks and eczema, which leads to poor applicability and experience, and also increases the difficulty of production and processing. In addition, it cannot effectively absorb and remove odors and harmful gases in diapers

Method used

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  • Paper diaper absorption core layer and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The absorbent core layer of a diaper is composed of lignin, hemicellulose, cellulose, and plasticizer (glycerol, ethylene glycol, mass ratio of 1:1).

[0032] The described production process of the absorbent core layer of a paper diaper comprises the following steps:

[0033] (1) First, heat and dissolve the raw lignin: water in a water bath with a solid-liquid ratio of 1:20 and a temperature of 80 °C;

[0034] (2) adding hemicellulose 0.5% (relative to the mass ratio of the dissolving solution in step (1)) to the dissolving solution after dissolving in step (1), stirring evenly, leaving it to stand for 40min in a water bath with a temperature of 40°C;

[0035] (3) adding 0.5% of plasticizer and 2.0% of cellulose to the mixed solution treated in step (2) (both relative to the mass percentage of the dissolved solution in step (1)), stirring evenly for later use;

[0036] (4) adjusting the pH value of the mixed solution in step (3) to 6.0;

[0037] (5) After freeze-dry...

Embodiment 2

[0039] An absorbent core layer of a diaper is composed of lignin, hemicellulose, cellulose, and a plasticizer (polyethylene glycol).

[0040] The described production process of the absorbent core layer of a paper diaper comprises the following steps:

[0041] (1) First, heat and dissolve the raw material lignin: water in a water bath with a solid-liquid ratio of 1:30 and a temperature of 40 °C;

[0042] (2) adding hemicellulose 1.0% (relative to the mass ratio of the dissolving solution in step (1)) to the dissolving solution after dissolving in step (1), stirring evenly, leaving it to stand for 20min in a water bath with a temperature of 80°C;

[0043] (3) adding 2.0% of plasticizer and 5.0% of cellulose (both relative to the mass percentage of the dissolving solution in step (1)) into the mixed solution treated in step (2), stirring evenly for later use;

[0044] (4) adjusting the pH value of the mixed solution in step (3) to 7.0;

[0045] (5) After freeze-drying the mixed ...

Embodiment 3

[0047] An absorbent core layer of a diaper is composed of lignin, hemicellulose, cellulose, and a plasticizer (sorbitol).

[0048] The described production process of the absorbent core layer of a paper diaper comprises the following steps:

[0049] (1) First, heat and dissolve the raw lignin: water in a water bath with a solid-liquid ratio of 1:25 and a temperature of 60 °C;

[0050] (2) adding hemicellulose 1.0% (relative to the mass ratio of the dissolving solution in step (1)) to the dissolving solution after dissolving in step (1), stirring evenly, leaving it to stand for 30min in a water bath with a temperature of 60°C;

[0051] (3) adding plasticizer 1.0% and cellulose 3.0% to the mixed solution treated in step 2) (both relative to the mass percentage of the dissolving solution in step (1)), stirring evenly for later use;

[0052] (4) adjusting the pH value of the mixed solution in step (3) to 6.5;

[0053] (5) After freeze-drying the mixed solution in step (4) at -20...

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Abstract

The invention discloses a paper diaper absorption core layer and a production process thereof. The paper diaper absorption core layer and the production process thereof adopt lignin, hemicellulose, cellulose and a plasticizer. The performance index of the paper diaper absorption core layer is close to that of a core body used by a paper diaper manufacturer at present, and the core body can replace the paper diaper absorption core layer; and in addition, the paper diaper absorption core layer can adsorb and remove peculiar smell and harmful gas in paper diapers, so that the paper diapers are safer, more sanitary and more comfortable.

Description

technical field [0001] The invention belongs to the technical field of diapers, in particular to an absorbent core layer of diapers and a production process thereof. Background technique [0002] Diapers are a common hygiene product for babies. Generally speaking, diapers are composed of three main parts: surface cover, absorbent core and backing. The surface coating may also be referred to as a coating. The absorbent core layer may also be referred to as an absorbent core, or absorbent body. The covering layer is close to the baby's body, which can promote the rapid penetration of urine and effectively prevent the back leakage, keeping the surface layer of the diaper dry. At present, the covering layer of diapers on the domestic market is basically a non-woven surface layer. The breathable non-woven fabric can improve the air permeability inside the diaper, and the water vapor can circulate outside the diaper to discharge moisture and heat in time, effectively reducing t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/53A61F13/15
CPCA61F13/15617A61F13/53A61F2013/530131
Inventor 王忠良
Owner 王忠良