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Composite dustless paper and production process and application thereof

A technology of dust-free paper and composite fiber, which is applied in medical science, bandages, absorbent pads, etc., can solve the problems of complex process, high production cost, and reduce sanitary napkins, etc., to increase the microporous structure, improve efficiency, and reduce The effect of the supply chain

Active Publication Date: 2014-05-07
FITESA CHINA AIRLAID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above process is relatively complicated, and the production cost is high. It is necessary to develop a new technology that is economical and does not reduce the performance of sanitary napkins.

Method used

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  • Composite dustless paper and production process and application thereof
  • Composite dustless paper and production process and application thereof
  • Composite dustless paper and production process and application thereof

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Embodiment 1

[0076] The total weight of the dust-free paper is about 175g / m2, and the thickness is about 1.45mm. The specific raw materials and structure are as follows: the cellulose fiber is Weyerhauser NB416, and the fiber length is about 2-5mm. The bicomponent composite fiber is composed of a core layer and a skin layer, the core layer is polypropylene (PP), the skin layer is polyethylene (PE), the fiber length is about 3-6mm, and the fineness is about 1.7-3.0 decitex. The non-woven fabric adopts 22gsm polypropylene spun-bonded non-woven fabric, and the polymer water-absorbing resin comes from Sandia-930, or from manufacturers such as Stockhausen, Sumitomo, Shokubai, etc. In this embodiment, the emulsion is sprayed on the fourth layer, Vinnapas192 from Wacker Company product.

[0077] The composite dust-free paper structure includes four layers, the basis weight of the first layer accounts for about 12.6% of the total weight of the product, the weight of the second layer accounts for a...

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Abstract

The invention relates to composite dustless paper and production process and application thereof. The composite dustless paper has the structure that a first layer is a lining layer and is made from a non-woven material; a second layer comprises a cellulosic fiber, a bonding material and a high molecular absorbing material; a third layer comprises a high molecular water-absorbing material, a cellulosic fiber and a selectively added bicomponent composite material; a fourth layer comprises a cellulosic fiber, a bicomponent composite fiber and a high molecular water-absorbing material; and an emulsion can be selectively sprayed onto the surface of the lining layer and / or the fourth layer. The composite dustless paper is continuously produced in a forming process by an air flow web-forming manufacturing process. The composite dustless paper is applied to disposable hygienic products including the hygienic products for women, adult incontinence products and paper diapers, food pads, pet pads and the like. By the composite dustless paper, the application variety of other materials to disposable hygienic product production is reduced, a supply chain and a production process are simplified, and the efficiency is improved.

Description

technical field [0001] The invention relates to a composite dust-free paper with novel structure, rapid liquid diversion, absorption and retention performance and anti-back seepage performance, including the structure, production process and application of the composite dust-free paper. Background technique [0002] Dust-free paper (also known as expanded 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 structure of sanitary napkins can be roughly summarized into four layers: surface layer, absorbent layer, bottom layer, and outer packaging. At present, dust-free paper is mainly used in the absorption lay...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/537B32B5/02A61L15/40A61L15/26A61L15/58
Inventor 任继春冯勋旺马克·纽曼
Owner FITESA CHINA AIRLAID
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