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Preparation process for high-water-absorption raw paper for sanitary napkin

A preparation process, high water absorption technology, applied in paper, papermaking, absorbent pads, etc., can solve the problems of limited liquid absorption function, rising production cost, slow consumption growth, etc., and achieve the effect of comfortable use, cost reduction, and easy quality assurance

Inactive Publication Date: 2017-04-26
TIANJIN JIAOROU HEALTH PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The early liquid-absorbent core layer of sanitary napkins is fluff pulp, which has limited liquid absorption function. In order to achieve ultra-thin capacity, SAP is added to the fluff pulp during production to reduce the amount of fluff pulp to achieve ultra-thin purposes, but this kind of production line is more complicated. ;Imported heat-bonded dust-free paper with SAP is used, the effect is very good, but the price of raw materials is high, the production cost rises, and the high quality leads to high prices, resulting in slow consumption growth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation process of superabsorbent base paper for sanitary napkins, the specific steps are:

[0022] (1) putting softwood pulp and hardwood pulp into a low-consistency hydraulic pulper according to a mass ratio of 7:13 for pulping;

[0023] (2) The slurry enters the discs of the disc refiner, and is subjected to the friction of the rotating discs and the beating effect of rubbing to achieve continuous beating, and finally obtain the original pulp. The beating degree is: coniferous wood pulp 40°SR, hardwood pulp Pulp 30°SR; wet weight: softwood pulp 5.7g, hardwood pulp 2.4g;

[0024] (3) transfer the beaten raw slurry to the batching tank, add wet strength agent, carboxymethyl cellulose, hydrophilic agent, leavening agent in the batching tank and carry out batching;

[0025] (4) Transfer the prepared slurry to the slurry mixing box for slurry mixing, so that the slurry is evenly mixed to ensure the stability of the slurry quality;

[0026] (5) The adjusted slurry ...

Embodiment 2

[0035] A preparation process of superabsorbent base paper for sanitary napkins, the specific steps are:

[0036] (1) putting softwood pulp and hardwood pulp into a low-consistency hydraulic pulper according to a mass ratio of 7:13 for pulping;

[0037] (2) The slurry enters the discs of the disc refiner, and is subjected to the friction of the rotating discs and the beating effect of rubbing to achieve continuous beating, and finally obtain the original pulp. The beating degree is: coniferous wood pulp 40°SR, hardwood pulp Pulp 30°SR; wet weight: softwood pulp 5.7g, hardwood pulp 2.4g;

[0038] (3) transfer the beaten raw slurry to the batching tank, add wet strength agent, carboxymethyl cellulose, hydrophilic agent, leavening agent in the batching tank and carry out batching;

[0039] (4) Transfer the prepared slurry to the slurry mixing box for slurry mixing, so that the slurry is evenly mixed to ensure the stability of the slurry quality;

[0040] (5) The adjusted slurry ...

Embodiment 3

[0049] A preparation process of superabsorbent base paper for sanitary napkins, the specific steps are:

[0050] (1) putting softwood pulp and hardwood pulp into a low-consistency hydraulic pulper according to a mass ratio of 7:13 for pulping;

[0051] (2) The slurry enters the discs of the disc refiner, and is subjected to the friction of the rotating discs and the beating effect of rubbing to achieve continuous beating, and finally obtain the original pulp. The beating degree is: coniferous wood pulp 40°SR, hardwood pulp Pulp 30°SR; wet weight: softwood pulp 5.7g, hardwood pulp 2.4g;

[0052] (3) transfer the beaten raw slurry to the batching tank, add wet strength agent, carboxymethyl cellulose, hydrophilic agent, leavening agent in the batching tank and carry out batching;

[0053] (4) Transfer the prepared slurry to the slurry mixing box for slurry mixing, so that the slurry is evenly mixed to ensure the stability of the slurry quality;

[0054] (5) The adjusted slurry ...

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Abstract

The invention provides a preparation process for high-water-absorption raw paper for a sanitary napkin. The preparation process comprises the following concrete steps: adding softwood pulp and hardwood pulp into a pulper for pulping; allowing pulp obtained in the previous step to enter a disc of a disc grinder and carrying out continuous beating so as to obtain raw pulp; transferring the raw pulp into a batching tank for batching; transferring the batched pulp into a pulp mixing tank for pulp mixing; allowing the mixed pulp to enter a desanding device for removal of foreign materials; further sieving out pulp lumps and other non-fiber impurities with a centri-sorter; subjecting the pulp to dilution and defoaming in a high-level tank before the pulp enters a net groove; adding a dispersant into the pulp in the net groove to disperse the pulp; allowing the pulp to enter a paper machine, adding a stripping agent and carrying out papermaking; and carrying out cutting and packaging on the prepared high-water-absorption raw paper for manufacturing of the sanitary napkin. The high-water-absorption raw paper prepared in the invention is used as liquid-absorbing core material for preparation of the sanitary napkin and enables cost of the sanitary napkin to be greatly reduced, the thickness of the sanitary napkin to be obviously decreased; and the preparation process is simple and enables the quality of the raw paper to be easily guaranteed and the raw paper to be more comfortable to use.

Description

technical field [0001] The invention relates to the field of sanitary napkin production, in particular to a preparation process of superabsorbent base paper for sanitary napkins. Background technique [0002] The early liquid-absorbent core layer of sanitary napkins is fluff pulp, which has limited liquid absorption function. In order to achieve ultra-thin capacity, SAP is added to the fluff pulp during production to reduce the amount of fluff pulp to achieve ultra-thin purposes, but this kind of production line is more complicated. ; Imported heat-bonded dust-free paper with SAP is used, the effect is very good, but the price of raw materials is high, the production cost rises, and the high quality leads to high prices, resulting in slow consumption growth. Contents of the invention [0003] The invention aims to solve the deficiencies of the prior art, and provides a preparation process of super absorbent base paper for sanitary napkins. [0004] In order to achieve the...

Claims

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Application Information

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IPC IPC(8): A61L15/42A61L15/60D21B1/34D21D1/02D21F5/02D21H21/08D21H21/20
CPCD21B1/345A61L15/42A61L15/60D21D1/02D21F5/02D21H21/08D21H21/20
Inventor 李海亮李凤山
Owner TIANJIN JIAOROU HEALTH PROD