Production method of dialysis base paper

Abstract

The invention discloses a production method of dialysis base paper. The production method comprises the steps of selecting pulp, ingredients and a papermaking process, controlling the proportion of bleached sulfate hardwood pulp to bleached sulfate softwood pulp, separately pulping the two kinds of wood pulp, and controlling the corresponding pulping concentration, beating degree and wet weight; then, conducting processes such as pulping, pulp preparation and papermaking. In a formula, PVA is a good surface sizing agent which is prepared by mixing with surface sizing starch and can improve thesurface film forming performance and water resistance of paper; when paper sheets with the same water absorption performance is about to be subjected to surface sizing before sizing, glue can be effectively prevented from excessively permeating inwards when the paper sheets are subjected to surface sizing as long as there is a certain amount of the PVA in the glue; only the surface of each papersheet is covered with a thin film formed by the glue, and the absorption amount of the glue on the paper sheets is basically unchanged. The base paper has good ink absorption and opacity and can meetthe printing requirements of a high-speed rotary printing machine in the aspect of strength, and a soft calender is adopted for finishing of the paper sheets.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a production method of high-grade medical dialysis base paper. Background technique [0002] The surface of high-grade medical dialysis paper is gravure printed, coated with thermoplastic resin, or directly compounded with plastic, and then heat-sealed to make a paper-plastic packaging bag with dialysis function, which is used for antibacterial packaging of medical equipment and supplies. The dialysis paper bags for packaging medical instruments and surgical supplies are directly sterilized under high temperature or ethylene oxide, which is convenient and hygienic. The sterilized dialysis paper bags can prevent the entry of microorganisms and keep the instruments sterile. [0003] So far, the popularity of domestic dialysis sterilization packaging is not ideal. The sterilization methods of medical devices in my country are mainly ethylene oxide and high-temperature steam ste...

AI Technical Summary

Problems solved by technology

[0003] So far, the popularity of domestic dialysis sterilization packaging is not ideal

The sterilization methods of medical devices in my country are mainly ethylene oxide and high-temperature steam sterilization, but the overall utilization rate of dialysis sterilization packaging bags in terminal medical institutions is less than 30%, and many manufacturers still use plastic bags to add small areas Ventilation window / ventilation strip mode or pure plastic bag

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