A preparation method of self-adhesive medical paper and its material stirring device

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

Active Publication Date: 2018-12-18
ZHEJIANG KAIFENG NEW MATERIAL CO LTD
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  • Abstract
  • Description
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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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  • A preparation method of self-adhesive medical paper and its material stirring device

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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 method for preparing self-adhesive medical paper and a material stirring device thereof. The method comprises using coniferous wood pulp and hardwood pulp as raw materials, and preparing a self-adhesive medical paper through the steps of crushing, stirring, purification and drying, and post-treatment. A self-adhesive medical paper is provided. The stirring device includes a casing and a stirring mechanism arranged in the casing, and a circulation mechanism is arranged outside the casing. The self-adhesive medical paper prepared by the method of the present invention meets the requirements of the modern medical industry at the same time with multiple indicators such as air permeability, strength, and folding resistance. Using the stirring device can not only omit the refining pool, but also reduce equipment costs , and fundamentally avoid the loss of slurry in the process from the refining tank to the mixing tank, saving costs; in addition, the beating degree measuring instrument 6 set in this equipment realizes the monitoring of beating degree in the production process and optimizes production; the second The circulation structure of refining can broaden the application space of the equipment, and can obtain different slurry according to different production needs.

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 Patents(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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