Special shadow copying paper and processing method

Abstract

The invention discloses shadow copying paper and a processing method. The method comprises the following processes: performing wet beating on commercial pulp serving as a raw material by adopting two-stage pulping and a double-millstone abrasive sheet to make the brooming rate of pulp fibers reach over 20 percent and reach high strength and strong water permeability resistance of paper; and performing a papermaking step with the pulp, namely adding water impermeable fluorine-containing copolymerization emulsion in an innovative U-shaped three-layer polyester net, adding papermaking-grade CMC in the production flow to perform retention aid, quantifying the formed and dried product at 16+ / 1 g / m<2>, and controlling the water permeability to be less than or equal to 2.5 millimeters so that the product has the characteristics of writing breakage resistance, water permeability resistance, high definition and myopia prevention. The method produces the special shadow copying paper by using the commercial pulp as the raw material, combining the novel S-shaped double-millstone abrasive sheet and the innovative U-shaped three-layer polyester net, adding the water impermeable fluorine-containing copolymerization emulsion and combining the preferred fiber degradation chemical enzyme.

Description

technical field [0001] The invention discloses a shadow copying paper and a processing method thereof, belongs to the technical field of papermaking according to the International Patent Classification (IPC), and in particular relates to a special shadow copying paper and a process thereof. Background technique [0002] Shadow copy paper is a kind of special paper, which can be widely used in the fields of high-end book decoration, photo album decoration, student copybook shadow copying, etc., especially the existing student copybook shadow copy glossy paper, which has a ration of 21g / m2 and poor transparency , and students' eyes will be closer to the copybook when they copy, and long-term use will affect students' vision. Moreover, the existing shadow copy paper is easily damaged when writing, and the writing pen is easily blurred on the paper to make the font unclear. [0003] The present inventor has studied for many years and improved relevant technology in ordinary pap...

AI Technical Summary

Problems solved by technology

[0002] Shadow copy paper is a kind of special paper, which can be widely used in the fields of high-end book decoration, photo album decoration, student copybook shadow copying, etc., especially the existing student copybook shadow copy glossy paper, which has a ration of 21g / m2 and poor transparency , and students' eyes will be closer to the copybook when copying, long-term use will affect students' eyesight

Moreover, the existing shadow copy paper is easily damaged when writing, and the writing pen is easy to bleed when written on the paper so that the font is not clear