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Thin dust-free paper for liquid absorption and preparation method thereof

A dust-free paper, thin technology, applied in the direction of special paper, absorbent pads, chemical instruments and methods, etc., can solve the problems of limited absorption capacity, high production energy consumption, thick and heavy absorption layer, etc., and achieve good structure, light weight and uniformity good sex effect

Active Publication Date: 2021-08-03
佛山市益贝达卫生材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The absorbent layer of current hygienic products is mainly composed of fluff pulp, and its absorption capacity is very limited. If a certain absorption capacity is to be achieved, a large amount of wood pulp is required, resulting in a thick absorbent layer.
A large amount of adhesive materials are added to the conventional dust-free paper structure and process and a large amount of heat is provided to shape the dust-free paper core. High, high production energy consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A thin dust-free paper for liquid absorption, comprising 25 parts by weight of an upper isolation layer, 35 parts of a water-absorbing layer and 25 parts of a lower isolation layer; by weight percentage, the upper isolation layer includes 70% fluff pulp and 30 % ES fiber, the water-absorbing layer includes 72% fluff pulp, 3% polymer water-absorbing resin and 25% ES fiber, and the lower insulation layer includes 65% fluff pulp and 35% ES fiber.

[0021] The preparation method of the above-mentioned thin dust-free paper for liquid absorption comprises the following steps:

[0022] (1) After the fluff pulp is quantified by the fiber collector, it is processed by the coarse pulverizer and then the fine pulverizer, and then transported to the first forming area by the feeding fan; the ES fiber is quantified by the fiber collector and then transported by the feeding fan Go to the first forming area, through the rotation of the cage wire in the first forming area, the treated ...

Embodiment 2

[0028] A thin dust-free paper for liquid absorption, comprising 10 parts by weight of an upper isolation layer, 20 parts of a water-absorbing layer and 10 parts of a lower isolation layer; by weight percentage, the upper isolation layer includes 50% fluff pulp and 50 %ES fiber, the water-absorbing layer includes 65% fluff pulp, 5% polymer water-absorbing resin and 30% ES fiber, and the lower insulation layer includes 50% fluff pulp and 50% ES fiber.

[0029] The preparation method of the above-mentioned thin dust-free paper for liquid absorption comprises the following steps:

[0030] (1) After the fluff pulp is quantified by the fiber collector, it is processed by the coarse pulverizer and then the fine pulverizer, and then transported to the first forming area by the feeding fan; the ES fiber is quantified by the fiber collector and then transported by the feeding fan Go to the first forming area, through the rotation of the cage wire in the first forming area, the treated f...

Embodiment 3

[0036] A thin dust-free paper for liquid absorption, comprising 40 parts of an upper isolation layer, 50 parts of a water-absorbing layer and 40 parts of a lower isolation layer by weight; the upper isolation layer includes 80% fluff pulp and 20 parts by weight %ES fiber, the water-absorbing layer includes 80% fluff pulp, 1% polymer water-absorbing resin and 19% ES fiber, and the lower insulation layer includes 80% fluff pulp and 20% ES fiber.

[0037] The preparation method of the above-mentioned thin dust-free paper for liquid absorption comprises the following steps:

[0038] (1) After the fluff pulp is quantified by the fiber collector, it is processed by the coarse pulverizer and then the fine pulverizer, and then transported to the first forming area by the feeding fan; the ES fiber is quantified by the fiber collector and then transported by the feeding fan Go to the first forming area, through the rotation of the cage wire in the first forming area, the treated fluff pul...

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Abstract

The invention discloses a thin dust-free paper for liquid absorption and a preparation method thereof. In parts by weight, the dust-free paper comprises 10-40 parts of an upper isolation layer, 20-50 parts of a water-absorbing layer and 10-40 parts of a lower Isolation layer, by weight percentage, the upper isolation layer includes 50-80% wood pulp fiber and 20-50% ES fiber, and the water-absorbing layer includes 50-80% wood pulp fiber, 1-5% polymer water-absorbing resin and 10-30% % ES fibers, the lower insulation layer includes 50‑80% wood pulp fibers and 20‑50% ES fibers. The dust-free paper of the present invention does not add any adhesive and is directly heated and formed, which not only saves cost, but also has the advantages of thinner thickness, lighter weight, faster water absorption and better flow diversion effect.

Description

technical field [0001] The invention relates to the technical field of hygroscopic articles, in particular to a thin dust-free paper for liquid absorption and a preparation method thereof. Background technique [0002] Dust-free paper (also known as puffed core material) is produced from wood pulp fibers with a length of several millimeters as the main raw material through air-laid and different consolidation methods. This technology can produce a variety of materials with different thicknesses, softness, and hygroscopicity. Its products are mainly used in disposable sanitary products such as diapers, feminine hygiene products, and adult incontinence products. [0003] The absorbent layer of current hygiene products is mainly composed of fluff pulp, and its absorption capacity is very limited. If a certain absorption capacity is to be achieved, a large amount of wood pulp is required, resulting in a thick absorbent layer. A large amount of adhesive materials are added to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/30A61F13/15B32B29/00
CPCA61F13/15B32B29/005D21H27/30
Inventor 刘烨翔
Owner 佛山市益贝达卫生材料有限公司
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