Production method of medical adhesive tape cotton paper with excellent comfort

Abstract

The invention relates to a production method of medical adhesive tape cotton paper with excellent comfort. According to the invention, low-polymerization-degree cotton pulp is adopted; defibering bya high-frequency defibering machine or defibering by adopting a disc mill for cutting off a tooth-shaped abrasive disc without adding a cutter; the material is mixed with double-component polyester fibers; wherein the absolute dry dosage of the cotton pulp is 60-85%; the dosage of the double-component polyester fibers is 15%-40%; the medical adhesive tape cotton paper is made by adopting an inclined wire former; and the manufactured paper is quantified to be 21-26g / m<2>, the tightness is 0.25-0.32 g / m<3>, the longitudinal tensile strength is 0.2-0.4 KN / m, the longitudinal elongation is more than or equal to 4%, the longitudinal and transverse tension ratio is (1: 1)-(1.5: 1), the air permeability is more than or equal to 600L / m<2>.S, and the water absorption is less than or equal to 15g / m<2>. The product has good bulk, moderate strength, high elongation, smooth and fine surface, high softness and good comfort, the phenomenon that chemical fibers adhere to a roller in the post-processing production process is avoided, and the finally produced medical adhesive tape has silk-like comfort.

Description

technical field [0001] This project involves the production of medical tape tissue paper, mainly a production method of medical tape tissue paper with excellent comfort and good post-processing production operation. Background technique [0002] Medical tape cotton paper is mainly used in the medical and health industry. As the base paper base material for medical tape, it will be impregnated with base reinforced latex, coated with release agent on the smooth surface, and coated with hot melt adhesive on the rough surface. Prepare medical tape after roll. Manufactures medical tapes. Medical tapes are mainly used in surgical operations, fixing infusion needles, etc., replacing non-degradable materials such as gauze cloth or plastic film. Medical tapes are required to have the characteristics of no allergies to the skin, no toxicity, no side effects, air permeability, no skin stains, and long-lasting stickiness. On the basis of meeting the above requirements, due to its long...

AI Technical Summary

Problems solved by technology

ZL 200410018183.6 (a preparation method of medical tape tissue paper) introduces a preparation method of medical tape tissue paper, which uses 20-40% wood pulp, 20-30% vinylon, and 20-40% water-soluble polyvinyl alcohol fiber , polyester 10~20%, and coated with PVA, although this method makes the medical tape cotton paper have a higher use strength, but the addition of wood pulp and water-soluble polyvinyl alcohol fiber in the raw materials used can significantly increase the paper strength, but the paper is soft In addition, the glass transition temperature of the coating agent——PVA is relatively high, which makes it hard and brittle, which has a great impact on the comfort of medical tape and tissue paper.

Application number 201810773502.6 (a high-transparency medical tape substrate and its preparation method) introduces a preparation method of a new type of medical tape tissue paper, which uses 40-60 parts of wood pulp fiber, 30-50 parts of polyester fiber, and low-melt fiber 9~9.5 parts, it can be found that the amount of chemical fiber has increased significantly, and the beating degree of wood pulp fiber is low, which is 18~23°SR. Therefore, its bulk is better and the base paper is more comfortable. The amount is relatively large, but unlike wood pulp fibers, which have many hydroxyl groups on the surface, it is difficult to form strong hydrogen bonds during interweaving, and the subsequent surface has not been treated with surface coating such as PVA, resulting in poor bonding of polyester fibers in paper. There are many free fibers on the surface of the paper. Although the free fibers can increase the hand feel, polyester fibers are more likely to stick to the roller during the post-processing production process (especially when hot-melt adhesive is applied), which affects the continuity of production. After the post-processing is completed, the polymer coated on the surface of the paper covers the original free fiber layer, which significantly reduces the hand feel of the finished paper. In addition, the polyester fiber falls to the surface of the paper, making the surface of the paper rough. Looseness, high porosity, large amount of glue absorption during post-processing, resulting in a significant increase in paper strength, and paper strength and softness are contradictory indicators, which will affect the comfort of medical tapes