Tape base paper and production method thereof

Abstract

The invention provides tape base paper and a production method thereof. As for the tap base paper, the fracture length is more than or equal to 6.0km; the tensile strength is more than or equal to 1.5kN / m; the moisture content is within the range of 7-10%; the tightness is more than or equal to 0.62g / cm<3>; the wet strength is more than or equal to 0.33kN / m; and the whiteness is within the range of 17-25%. The production method of the tape base paper comprises the following steps: carrying out low-energy consumption displacement cooking, oxygen-alkali delignification and hydrogen peroxide bleaching processes on a wood fiber raw material to produce micro-bleaching pulp, wherein the whiteness of the bleached pulp is 19-27%, the beating concentration of the bleached pulp is 2.5-4.5%, the beating degree of the bleached pulp is 26-32 degree SR, and the wet weight of the bleached pulp is 10.5-15g; and the pulp is formed by beating, degritting, adding a wet strength agent, carrying out fine screening with a pressurized screen, forming on a mesh, squeezing, drying, reeling, rewinding, and packaging.

Description

technical field [0001] The invention relates to an adhesive tape base paper, which has high dry and wet physical strength and brown color, and is suitable for producing adhesive tapes. The invention also relates to the production method of the tape base paper, especially the technology of using needle and broadwood fiber raw materials, adopting DDS low energy consumption displacement cooking, oxygen delignification and hydrogen peroxide bleaching process to produce the tape base paper. Background technique [0002] In the automotive, home improvement, packaging and other industries, a tape is used for blocking or bonding. At present, the tapes on the market mainly include plastic tapes and paper-based tapes. The paper sheets used to produce paper-based tapes are required to have certain physical strength, water resistance, and aging resistance, so as to ensure the normal production and tape products during the tape processing and production process. quality. To produce tap...

AI Technical Summary

Problems solved by technology

However, the tape base paper production method disclosed in the patent application documents all uses coniferous wood pulp, and the production cost is high; the amount of PAE-LT wet strength agent is as high as 5-10% (for absolute dry pulp, the amount of wet strength agent is calculated as 100%), The production cost is high, and the broken paper produced in the papermaking process is difficult to handle due to high wet strength, which limits the use of this production method; the use of viscous beating method, high beating degree, not only causes high energy consumption, but also affects the performance of the product