Paper recycling device

Abstract

The invention provides a paper recycling processing device including a papermaking unit (13) serving as a fibrous layer forming unit which forms wet paper (12) serving as a fibrous layer of regenerated fibres from a paper regeneration raw material; a drying unit (14) serving as a heating unit to heat the wet paper and a calendering unit (200) which is located at a downstream side of the drying unit in a fibrous layer conveying direction and smoothing the wet paper to become recycled paper. in the calendering unit, a pair of extrusion rollers (201, 202) are configured the fibrous layer conveying path, one (201) of a pair of extrusion rollers is configured to be a fixed roller (201b) in a fixed position, the other extrusion roller (202) is configured to be a pressing roller (202b) freely approaching or separated from the fixed roller, a force application unit (203) applies acting force to the pressing roller towards the fixed roller, and a limiting unit (202d) forms a limiting interval (t) narrower than the thickness of finished paper of recycled paper between the fixed roller and the pressing roller.

Description

technical field [0001] The present invention relates to a paper recycling apparatus installed in offices and the like for recycling paper, and more particularly to a calendering technique. Background technique [0002] Conventionally, in the papermaking process of making a pulp suspension containing waste paper pulp with a papermaking wire, the wet paper made by the papermaking wire is pressed against a drying roll, or the wet paper is pressed against a drying roll with a felt canvas belt and dried. . At this time, traces of the meshes of the papermaking wire or the meshes of the canvas remain on the wet paper as uneven indentations. The indentation becomes an important cause of hindering printing, and it is difficult for ink and toner to adhere firmly to the recesses, thereby deteriorating the quality of printed products. In addition, when writing with a pen or the like, the sliding of the tip of the pen is poor, and the writing feel is deteriorated. [0003] Therefore, ...

AI Technical Summary

Problems solved by technology

However, if the wet paper containing moisture is squeezed, there are unstable factors such as the phenomenon that the fibers of the wet paper flow out with the movement of the moisture in the wet paper, and the phenomenon that the front end of the wet paper is wound around the squeeze roller.

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