MANUFACTURING DEVICE AND PREPARATION METHOD FOR CIGARETTE PAPER HAVING FLAME-RETARDING STRIPES

摘要

The present invention relates to a manufacturing device and preparation method for cigarette paper having flame-retarding stripes. Said device comprises a first coating press roll and a second coating press roll, the first coating press roll and the second coating press roll being in contact with and parallel to each other and having opposite axial rotary directions. The cigarette paper passes through at the position where the first coating press roll and the second coating press roll come into contact. A feeding tube is provided at the outside of the first coating press roll and/or the second coating press roll. The feeding tube is provided with multiple feeding nozzles. To print flame retardant on one side or both sides of the cigarette paper having flame-retarding stripes, the present invention first applies on the surface of the raw paper of the cigarette paper a coating of diffusion-resistant, permeation-resistant coating material such as oxidized starch or sodium carboxymethyl cellulose, so that the raw paper of the cigarette paper has a certain degree of resistance against diffusion and permeation, thereby reducing wrinkles during flame-retarding stripe printing. The tensile strength of the cigarette paper is also enhanced, thereby improving the surface properties of the cigarette paper.