GB156448A - Improvements in crimpled paper and like fabric - Google Patents

Abstract

156,448. Otaka Fabric Co., and Lorenz, W. A. April 22, 1920. Corrugated and crinkled paper; corrugating and crinkling apparatus.-Paper is corrugated longitudinally and crimped laterally to the form shown in Fig. 11. The corrugations may be produced by the passage of the paper between formers 15, 16,. Figs. 2 and 5, from which it passes between corrugated rolls 20, 21 to a cylinder 22 correspondingly corrugated. The paper may be treated dry, or may be steamed, or water-sprinkling pipes 58, 59 may be provided for both sides of the paper. Preferably the moistened paper is dried by heating the cylinder 22. A doctor blade 30 with a waved edge to correspond with the corrugations in the paper and in the cylinder 22 obstructs and strips the paper and thereby laterally crimps it. The cylinder 22 has a vacuum chest 25 and pipe 26 acting in conjunction with it, is power-revolved and may communicate rotation to the roll 21. The blade 30 and the vacuum chest 25 fit the cylinder closely enough to maintain a partial vacuum which facilitates the change of direction of the paper web. A roll 33 which may be con. structed of rubber or the like and with grooves to match the web corrugations assists in forcing the paper against the doctor blade. The front face of the blade may be plain or may be bevelled off at its lower edge. Specification 1610/71 is referred to.