Preparation method and material stirring device of self-adhesion type medical paper

A stirring device and self-adhesive technology, applied in the field of papermaking, can solve the problems that strength and air permeability cannot meet high requirements, and achieve the effects of improving folding endurance and strength, saving costs and avoiding losses.

Active Publication Date: 2016-10-12
ZHEJIANG KAIFENG NEW MATERIAL CO LTD
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Problems solved by technology

[0005] Chinese patent application number 201310426943.6 discloses a kind of medical dialysis paper. The medical dialysis paper uses coniferous wood and broad-leaved wood as fiber raw materials and is made according to the traditional papermaking process; in the above-mentioned fiber raw materials, the content of hard-leaved wood is 50-60%. , and the rest are coniferous wood. The above-mentioned fiber raw materials are beaten to a pulp degree of 60°SR to 62°SR, and a wet weight of 5.5g to 7.5g. Although the medical dialysis paper obtained through this ratio has certain strength and good air permeability , but its strength and air permeability still cannot meet the high requirements of the development of the modern medical industry

Method used

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  • Preparation method and material stirring device of self-adhesion type medical paper

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Embodiment 1

[0020] Embodiment 1: A kind of preparation method of self-adhesive medical paper comprises the following steps: disintegrate into a concentration of 3% in a hydraulic disintegrator mixed with sodium bicarbonate with Yinxing and Fenya in a ratio of 1:1.5 Paper slurry, after refining the pulp, control the pulp size to 32°SR, and wet weight to 2.0g; mix the slurry evenly with the auxiliary agent gelatinized at 95°C, the auxiliary agent includes dry pulp 0.5% of the raw material and the esterified cationic modified corn starch with a minimum viscosity of 1ps.S, 6.1% of wet strength agent and 0.2% of carboxymethyl cellulose, after purifying the proportioned slurry, send it to the drying cylinder The top roll adopts fourdrinier forming drying cylinders in combination of hydraulic and air pressure for drying treatment. The pressure of the top roll of the hydraulic drying cylinder is 4Mpa, and the pressure of the top roll of the pneumatic drying cylinder is 0.4Mpa. In the middle of dry...

Embodiment 2

[0021] Embodiment 2: A kind of preparation method of medical self-adhesive type medical paper comprises the following steps: disintegrate into a concentration of 5 with Yinxing and Fenya in a hydraulic disintegrator mixed with sodium bicarbonate in a ratio of 1:0.8 % paper pulp liquid, the paper pulp liquid is subjected to pulping treatment, and the pulp size is controlled to be 33°SR, and the wet weight is 2.2g; the slurry is mixed evenly with the auxiliary agent gelatinized at 95°C, and the auxiliary agent includes absolute 0.5% of the dry slurry and the esterified cationic modified corn starch with a minimum viscosity of 1ps.S, 6.1% of wet strength agent and 0.2% of carboxymethyl cellulose, after cleaning the proportioned slurry, send it into The top roll of the drying cylinder is dried by fourdrinier forming dryers in a combination of hydraulic and air pressure. The pressure of the top roll of the hydraulic drying cylinder is 4Mpa, and the pressure of the top roll of the pn...

Embodiment 3

[0022] Embodiment 3: A kind of preparation method of self-adhesive medical paper comprises the following steps: Disintegrate into a concentration of 7% in a hydraulic disintegrator mixed with sodium bicarbonate with Yinxing and Fenya in a ratio of 1:0.43 The paper pulp liquid, the paper pulp liquid is subjected to pulping treatment, and the pulp size is controlled to be 34°SR, and the wet weight is 2.5g; the slurry is mixed evenly with the auxiliary agent gelatinized at 95°C, and the auxiliary agent includes dry 0.5% of the slurry and the esterified cationic modified corn starch with a minimum viscosity of 1ps.S, 6.1% of the wet strength agent and 0.2% of carboxymethyl cellulose, the slurry after the proportioning is purified and sent to the oven The cylinder top roll adopts fourdrinier drying cylinder drying treatment in combination of hydraulic type and pneumatic type. The hydraulic type drying cylinder top roll pressure is 4Mpa, and the pneumatic type drying cylinder top rol...

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Abstract

The invention discloses a preparation method and material stirring device of self-adhesion type medical paper. The method includes the steps that softwood pulp and hardwood pulp serve as raw materials, and the self-adhesion type medical paper is prepared through the steps of crushing, stirring, purifying and drying and post-processing. The stirring device comprises a shell and a stirring mechanism arranged in the shell, and the outer side of the shell is provided with a cycle mechanism. Multiple indexes such as air permeability, strength and folding strength of the self-adhesion type medical paper prepared from the method meet the use requirements of the modern medical industry at the same time, by means of the stirring device, a pulping pool can be omitted, equipment cost is reduced, the loss of pulp in the process from the pulping pool to a pulp mixing pool is avoided radically, and cost is saved; in addition, by means of a beating degree measuring instrument (6) of the stirring device, monitoring of the beating degree in the production process is achieved, and production is optimized; through the cycle structure of secondary pulping, the application space of the device can be expanded, and pulp meeting different requirements can be obtained according to different production requirements.

Description

technical field [0001] The invention relates to the field of papermaking, in particular to a method for preparing self-adhesive medical paper and a material stirring device thereof. Background technique [0002] Medical paper, also known as medical paper, is used for inner packaging of medicines, for wiping dirt from wounds, or for filling medicine bottles. Dialysis paper is widely used in the medical packaging industry and sterilization packaging materials for medical devices. The surface of the dialysis paper is gravure printed, coated with thermoplastic resin, or directly heat-sealed or glued with PP, PE and other film materials to make a paper-plastic packaging bag with dialysis function. [0003] With the rapid development of the medical industry, the cost of cotton cloth materials and cleaning used in the past has continued to rise, and the production cost of medical devices repeatedly used in the disinfection supply center has also increased sharply. In addition, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H21/18B01F7/18B01F7/00
CPCD21H21/18D21H27/00B01F27/1123B01F27/191B01F27/90B01F2101/47
Inventor 计皓张琦刘佳文杨静邱慈祥何红梅杜亚妮
Owner ZHEJIANG KAIFENG NEW MATERIAL CO LTD
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