CN1475170A

CN1475170A - White rib tobacco dry ice swelling treatment method

Info

Publication number: CN1475170A
Application number: CNA03145528XA
Authority: CN
Inventors: 蒋志宏; 钟科军; 刘东山
Original assignee: CHANGDE CIGARETTE FACTORY
Current assignee: CHANGDE CIGARETTE FACTORY
Priority date: 2003-06-28
Filing date: 2003-06-28
Publication date: 2004-02-18

Abstract

A process for puffing tobacco shreds by dry ice includes adding assistant to tobacco leaves, controlling water content to 18-22%, making tobacco shreds, loading in enclosed container, filling CO2 gas to 30-35 kg/sq.cm of pressure, filling liquid CO2, immersing tobacco shreds in it for 1-10 min, quickly releasing pressure to low the temp of liquid CO2 to -68 deg.C or lower and make it become dry ice, breaking the dry ice containing tobacco shreds, loading in expansion tower, and heating to 300-330 deg.C for sublimate dry ice while puffing tobacco shreds. It can improve the smoking quality of tobacco shreds.

Description

Burley tobaccos dry ice expanding treatment method

Affiliated technical field:

The present invention relates to tobacco leaf process technology in the tobacco industry, i.e. the method for burley tobaccos dry ice expanding treatment.

Background technology:

Burley tobaccos are the indispensable raw materials of exploitation blended type cigarette, traditional burley tobaccos are treated to baking process, and its pattern mainly contains two kinds: promptly 140～130 ℃ from high temperature to low temperature (employing of U.S. Fei Mo company) and from 70～140 ℃ (employing of Britain Anglo American) two kinds from low temperature to high temperature.The burley tobaccos of handling from high temperature to the low temperature process give off a strong fragrance, and the burley tobaccos fragrance of handling from low temperature to the high-temperature technology is pure and mild, pleasant impression is clean.External burley tobaccos use its prescription availability of burley tobaccos of these two kinds of mode treatment all better because its total quality is better.

But homemade burley tobaccos, especially low and middle-grade burley tobaccos, its quality characteristic is: characteristic perfume is not obvious, fragrance is dull, perfume quantity is not enough, flue gas is coarse, conglobation property is poor, strength is bigger than normal, the thorn of choking sense is obvious, and the assorted gas of Ammonia is heavier.Use above-mentioned dual mode to handle homemade burley tobaccos, especially low-grade burley tobaccos are difficult to reduce significantly burley tobaccos strength, assorted gas and improve it and suck mouthfeel, and the prescription availability is not good.

Summary of the invention

Handle the shortcoming of homemade burley tobaccos in order to overcome baking process, the present invention proposes method with dry ice expanding treatment burley tobaccos.

Method of the present invention is like this:

After burley tobacco leaf applies a defective material, the moisture of discharging tobacco leaf is controlled at 18～22%, makes pipe tobacco, send in the airtight container and use CO ₂Gas pressurized, pressure are 30～35Kg/cm ², charge into liquid CO ₂, make pipe tobacco be immersed in liquid CO fully ₂In, dip time is 1～10 minute, releases rapidly to normal pressure then, makes remaining liquid CO ₂Temperature is reduced to below-68 ℃ and is formed dry ice, these dry ice are filled in the pipe tobacco cell and in the space between cells, the dry ice that will contain pipe tobacco then is ground into fragment, sends into expanding tower again, with 300～330 ℃ thermal current heating, dry ice distilled rapidly and made tobacco expanding in 1～3 second.

CO ₂The expanding treatment pipe tobacco mainly was used on the flue-cured tobacco in the past, and by experiment, homemade burley tobaccos pass through CO ₂After the expanding treatment, compare its quality characteristic of baking pattern and show: 1, strength obviously reduces, and its amplitude is about 50%; 2, assorted gas is slight; 3, fragrance is sent out not dull thoroughly; 4, tobacco fill value obviously improves, and tests factually to show: the burley tobaccos filling value of tradition baking mode treatment is about 5.07cm ³/ g, and dry ice expanding treatment burley tobaccos silk filling value is about 6.46cm ³/ g looks its usage ratio in prescription, every big case cigarette can reduce formulation cost to be counted about unit to 100 yuan, falls burnt effect about 1.0～2.0mg/ props up; 5, the prescription availability improves, and uses the cigarette smoking of this technology development light, and mouthfeel is obviously improved.

CO ₂Puffing technique is handled burley tobaccos, because the conventional process pattern will be lost a small amount of fragrance relatively, so fragrance is sent out thoroughly, assorted gas is slight; Quality import preferably, homemade burley tobaccos use this technique effect not too obvious, mainly be applicable to and handle that big, the assorted gas of fragrance oppressiveness, strength is heavier, the low and middle-grade burley tobaccos of coarse mouthfeel, in exploitation flat taste mixed type, improvement mixed type, English Virginian-type cigarette, use this technique effect better.

The specific embodiment

Burley tobacco leaf is applied spices one time, and the tobacco leaf moisture content during with discharging is controlled at 20%, makes pipe tobacco, sends into and uses CO in the pressure pan ₂Gas pressurized, pressure are 32Kg/cm ², make pipe tobacco be immersed in liquid CO fully ₂In, dip time is 3 minutes, opens valve then, makes in 1～3 minute and reduces to normal pressure in the jar rapidly, because jar interior a large amount of liquid CO ₂Evaporation makes a jar interior remaining liquid CO ₂Temperature is reduced to-68.5 ℃ and form dry ice, these dry ice be filled in the pipe tobacco cell and the space between cells in, start a jar interior agitator then, the dry ice that will contain pipe tobacco is ground into fragment, open the bottom valve door, broken dry ice lumps is sent into expanding tower, and with 315 ℃ thermal current heating, dry ice distils rapidly in 2 seconds and makes tobacco expanding.

Claims

1, burley tobaccos dry ice expanding treatment method is characterized in that: after burley tobacco leaf applies a defective material, the moisture of discharging tobacco leaf is controlled at 18～22%, makes pipe tobacco, send in the airtight container and use CO ₂Gas pressurized, pressure are 30～35Kg/cm ², charge into liquid CO ₂, make pipe tobacco be immersed in liquid CO fully ₂In, dip time is 1～10 minute, releases rapidly to normal pressure then, makes remaining liquid CO ₂Temperature is reduced to below-68 ℃ and is formed dry ice, these dry ice are filled in the pipe tobacco cell and in the space between cells, the dry ice that will contain pipe tobacco then is ground into fragment, sends into expanding tower again, with 300～330 ℃ thermal current heating, dry ice distilled rapidly and made tobacco expanding in 1～3 second.