Gravure press producing cigarette paper with flame retarding zone and production method

Abstract

The invention relates to a gravure press producing cigarette paper with a flame retarding zone and a production method, wherein the flame retarding zone is printed onto the cigarette paper through a retardant printing device. The gravure press comprises a drying device and a squeezing device, the drying device comprises a printer version roller and a pressing rubber roller and a drying cylinder located at the lower streams of the printer version roller and the pressing rubber roller, wherein the version roller and the pressing rubber roller are in mutual parallel contact. The cigarette paper penetrates through the contact position of the printer version roller and the pressing rubber roller to be tightly connected with the drying cylinder. The squeezing device comprises a squeezing upper roller and a squeezing lower roller which are in mutual parallel contact, and the cigarette paper penetrates through the contact position of the squeezing upper roller and the squeezing lower roller. The gravure press combines the drying device and the squeezing device so that drying process is first conducted on the paper sheets, and then the squeezing process is finished. Therefore, the possibilities of deformation and folding of the paper sheets and the thickness of the flame retarding zone are reduced.

Description

technical field [0001] The invention relates to a cigarette paper printing device and a production method, in particular to a gravure printing machine and a production method for producing cigarette paper with flame-retardant tapes. Background technique [0002] A cigarette butt can destroy tens of thousands of hectares of forest, and there are too many fire cases caused by smoking. The center temperature of the cigarette butt is as high as 700-800°C, and the surface temperature of the combustion cone is also 300-500°C, which is much higher than the ignition point of general solid combustibles such as paper and cloth. [0003] The cigarettes rolled by the cigarette paper with the flame-retardant tape can effectively improve the safety of the cigarettes (that is, low ignitability). One method of producing cigarette paper with flame-retardant bands is to print band-shaped flame-retardant coatings with certain intervals on the cigarette paper base paper. When the cigarette na...

AI Technical Summary

Problems solved by technology

However, the inventor found in a large number of ordinary gravure printing machine production tests that the flame-retardant tape cigarette paper produced had defects such as paper folds, large thickness of the flame-retardant tape, and gradually reduced printing volume of the flame retardant.

[0006] Paper wrinkling will affect the cutting of flame-retardant tape cigarette paper into coil paper, and affect the appearance quality of cigarettes rolled by cigarette machines and finished cigarettes

The thickness of the flame-retardant tape will affect the diameter of the finished paper of the flame-retardant tape, which will affect the cigarette rolling machine

The printing amount of flame retardant gradually decreases, which will affect the flame retardant effect of cigarette paper with flame retardant tape, etc.

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