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A kind of manufacturing method of absorbent backing paper for sanitary napkin

A production method and technology of sanitary napkins, which are applied in pulp beating/refining methods, pure paper, papermaking, etc., can solve the problems of low air permeability and cannot meet the use requirements, and achieve the effect of high air permeability

Active Publication Date: 2017-05-24
上海东冠纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary household paper on the market, such as facial tissue, handkerchief paper, toilet paper, napkin paper, kitchen paper, toilet paper, etc., has added a variety of chemicals due to the requirements of the use, and has low air permeability, which cannot meet its use requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A production method for absorbent backing paper for sanitary napkins, the method comprising the following process steps:

[0019] (1) Put 6 packs of coniferous wood pulp boards into the long fiber pulper (each bag has an air-dry weight of 230 kg) totaling 1380 kg. After filling up with water, the total volume is about 23 cubic meters, the concentration is about 6.0%, and it is crushed for 15 Minutes or so, pumped into the long fiber pulp pool;

[0020] (2) The coniferous wood pulp is added with water from the pulp tank before the long fiber tap to adjust the concentration to about 4.5% and passes through the refiner. The energy consumption of refining is 60 kWh / ton of pulp, and the pulp after grinding reaches the theoretical tap degree and wet weight value;

[0021] (3) Pump softwood pulp into the mixing tank, add water from the mixing tank to adjust the concentration to about 3.5%, pass through the refiner, and control the refining power to process the fiber to a certa...

Embodiment 2

[0024] A production method for absorbent backing paper for sanitary napkins, the method comprising the following process steps:

[0025] (1) In the pulper, put 7 packs of coniferous wood pulp boards (each pack has an air-dry weight of 230 kg), a total of 1610 kg. After filling with water, the total volume is about 20 cubic meters, the concentration is about 8%, and it is crushed for 10 minutes. After that, it is pumped into the long fiber pulp pool;

[0026] (2) The coniferous wood pulp is added with water from the long-fiber pulp tank before tapping to adjust the concentration to about 4.0%, and then passes through the Aikawa cone mill, the refiner does not feed the knife, and the pulp enters the long-fiber rear pulp tank after passing through;

[0027] (3) Pump the coniferous wood pulp into the mixing pulp tank, add water from the mixing pulp tank to adjust the concentration to about 3.2%, pass through the refiner, and process the fiber to a certain extent by controlling the...

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Abstract

The invention relates to a making method of water absorption lining paper for sanitary napkins. The method adopts 100% native coniferous wood pulp long fiber, and by means of fibrillation treatment by a pulping machine, fiber combination can meet the strength requirement and maintain good air permeability at the same time. Compared with the prior art, the method provided by the invention adopts 100% long fiber, performs pumping reasonably, reduces excessive cutting of fiber, and reaches certain strength through reasonable fibrillation. The produced water absorption lining paper has high air permeability much higher than similar quantitative ordinary household paper, can package fluff pulp and the like uniformly, and the whole production process does not apply glue and is not added with dry strength agent, softening agent or other chemical medicines, thus being safe, sanitary and environment-friendly.

Description

technical field [0001] The invention relates to a manufacturing method of a paper product, in particular to a manufacturing method of a water-absorbing backing paper for sanitary napkins. Background technique [0002] With the improvement of living standards, the industry of disposable sanitary products has developed rapidly. The main advantages of disposable sanitary products are convenient and comfortable use. Absorbent backing paper is the key material in disposable sanitary products, mainly used to wrap the fluff of sanitary napkins. Pulp and polymer water-absorbing resin can ensure that sanitary products have a certain degree of water absorption and require good air permeability. High air permeability can reduce discomfort during use. Because of its special use occasions and requirements, the absorbent backing paper is required to have certain strength and high air permeability. Ordinary household papers on the market, such as facial tissue, handkerchief paper, toilet ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/16D21H11/08D21D1/20
Inventor 孔佳锦莫建新许明艳张焱黄海丽翟荣甫俞伟军
Owner 上海东冠纸业有限公司
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