초록 ▼

The present invention is directed to a method for controlling and adjusting the permeability of a cigarette wrapping paper. Permeability is controlled in the paper by adding different sized filler particles in different proportionate amounts. Permeability of the paper is altered without having to ch

The present invention is directed to a method for controlling and adjusting the permeability of a cigarette wrapping paper. Permeability is controlled in the paper by adding different sized filler particles in different proportionate amounts. Permeability of the paper is altered without having to change the total amount of filler in the paper. By selectively controlling the permeability of the paper, various characteristics and properties of a cigarette made with the paper can be likewise modified as desired. In one embodiment of the present invention, the permeability of a cigarette wrapper can be automatically maintained or adjusted as the paper is being made.

대표청구항 ▼

[ What is claimed is:] [1.] A process for controlling the permeability of a paper as said paper is formed comprising the steps of:providing a fiber suspension;blending said fiber suspension with a mixture of fillers, comprising at least a first filler having a first median particle size and a second

[ What is claimed is:] [1.] A process for controlling the permeability of a paper as said paper is formed comprising the steps of:providing a fiber suspension;blending said fiber suspension with a mixture of fillers, comprising at least a first filler having a first median particle size and a second filler having a second median particle size, said first particle size being larger than said second particle size, said mixture of said fillers having an average particle size;forming said fiber suspension into a paper;determining the permeability of said paper formed from said fiber suspension with a permeability measuring device, said permeability measuring device sending permeability information to a controller configured to adjust the proportionate amounts of said first filler and said second filler contained in said mixture of fillers; andbased on said permeability, selectively increasing or decreasing the average particle size of said mixture of fillers using said controller for adjusting the permeability of said paper within a preset range.