CN101961135A - Processing method of cigarettes with low crotonaldehyde content - Google Patents

Abstract

The invention relates to a processing method of cigarettes with low crotonaldehyde content, and the specific process parameters of the main process steps are as follows: 1) the microwave loosening process step: the microwave power is 136KW, and the processing time is 320s; 2) the loosening and conditioning process step: the steam pressure of a steam and water nozzle is 0.3MPa, the temperature of return air is 48 DEG C, and the rotational speed of a cylinder body is 9r/min; 3) the HT and cut tobacco drying process step: the HT working steam pressure is 0.60MPa, the temperature of hot air is 85 DEG C, the opening degree of a moist air removing door is 53%, the opening degree of a hot air door is 70%, and the rotational speed of the cylinder body is 9r/min; and the HT is the cut tobacco temperature-increasing and moisture-increasing process step which is carried out by adopting a tunnel type cut tobacco temperature-increasing and moisture-increasing machine. The processing method can effectively reduce the content of crotonaldehyde in smoke gas of the prepared cigarette products through optimal combination of process parameters of the existing process steps.

Description

A kind of cigarette technological method for processing of low crotonaldehyde content

Technical field

The present invention relates to the cigarette technological method for processing of low crotonaldehyde content, be specifically related to a kind of cigarette throwing emphasis procedure technology method of low crotonaldehyde content.

Background technology

" prevent to contact tobacco smoke " in " Framework Convention on Tobacco Control ", " control of tobacco composition and disclosure " two criterions require national governments to work up more severe " Tobacco Control " laws and regulations, impel tobacco productive corporation when reducing releasing content of coke tar in cigarette, more want the burst size of main harmful components in the strict control cigarette smoke, further strengthened the pressure of industry lowering harm and decreasing coking, smoking is the main challenge that tobacco business faces with health, and lowering harm and decreasing coking is related to the survival and development of tobacco business.

For addressing these problems, State Tobacco Monopoly Bureau has printed and distributed " State Tobacco Monopoly Bureau is about the notice of further propelling lowering harm and decreasing coking work " (No. (2006) 412, domestic cigarettes section) on June 16th, 2006, and work has proposed new requirement to lowering harm and decreasing coking.This notice will comprise that 7 kinds of harmful components of cigarette smoke of crotonaldehyde are as the important indicator that characterizes the cigarette mainstream flue gas biohazard.

Volatile carbonyl compound is the important harmful substance of a class in the cigarette smoke, has found 20 kinds of aldehyde and 6 kinds of ketone at present in the flue gas gas phase at least.Wherein crotonaldehyde content is higher, and eye conjunctiva, nose and upper respiratory tract mucosa and skin are had excitant, and long-term contact can cause and cause rhinitis chronic, dermatitis, respiratory disease and nervous system function obstacle.

For further promoting the enforcement of the strategic problem of tobacco business lowering harm and decreasing coking, advance carrying out in a deep going way of cigarette lowering harm and decreasing coking work, State Tobacco Monopoly Bureau has printed and distributed " State Tobacco Monopoly Bureau is about the suggestion of further propelling lowering harm and decreasing coking work " (No. (2008) 471, domestic cigarettes section) on August 27th, 2008, clearly propose, by 2010, whole nation cigarette reduces in selectivity is obtaining remarkable breakthrough aspect 7 kinds of harmful components such as crotonaldehyde, forms a collection ofly to have the core technology of independent intellectual property right and be applied in industry focus shaft cigarette brand.And think and should strengthen raw tobacco material, cigarette processing technology and the auxiliary material design influence research to harmful components burst size in the cigarette smoke, for lowering harm and decreasing coking application technical research and low harm product development are provided fundamental basis.

How to reduce the crotonaldehyde content in the cigarette mainstream flue gas, reduce the harm of smoking, many researchs are arranged in recent years health.This type of research mainly is that the filter tip by application specific development reduces the crotonaldehyde content in the cigarette smoke.The patent No. of announcing as Chinese patent provides the additive of aldehyde material in a kind of selectivity reducing cigarette fume for the patent of invention of ZL200710192691.X, be to be carrier with the silochrom, introduce functional groups by modification, thereby the compound layer that has amino, urea groups or amide groups in carrier surface and duct surface coverage last layer and aldehyde material reaction, carrier after the modification is applied to cigarette filter, can optionally reduces the content of aldehyde materials such as formaldehyde in the cigarette smoke, acetaldehyde, propionic aldehyde, methacrylaldehyde, crotonaldehyde.The application number that Chinese patent is announced is that the described a kind of paper filter stick paper that reduces aldehyde material in the cigarette smoke of the patent of invention of ZL200810107510.3 is one or more paper of making that contain in wood pulp cellulose or the ramie pulp fiber, described paper is through coating processes, high-hydroscopicity by paper, coating contains amino compound solution, cut after the drying, embossing is made paper filter stick through the mouth rod forming machine.Papery filter tip of the present invention can reduce crotons aldehyde in the cigarette smoke effectively.And cigarette technology for making tobacco threds parameter yet there are no report so far to the influence of crotons aldehyde in the cigarette mainstream flue gas.

Summary of the invention

The cigarette technological method for processing that the purpose of this invention is to provide a kind of low crotonaldehyde content is by the combination of process parameters at cigarette silk producing procedures optimizing application, to reduce crotonaldehyde burst size in the cigarette smoke.

The object of the present invention is achieved like this: a kind of cigarette technological method for processing of low crotonaldehyde content, and main by the loose operation of the microwave that carries out in turn, loosening and gaining moisture operation and HT+ drying process are formed, and the concrete technological parameter of operation is as follows:

1), the loose operation of microwave: microwave power 136KW, process time 320s;

2), loosening and gaining moisture operation: vapour, (operating) water nozzle steam pressure 0.3MPa, 48 ℃ of return air temperatures, drum speed 9r/min;

3), HT and drying process: HT working steam pressure 0.60MPa, 85 ℃ of hot blast temperatures, humidity discharging throttle opening 53%, hot blast throttle opening 70%, drum speed 9r/min;

The leaf silk warming and humidifying operation of HT for adopting tunnel type leaf silk warming and humidifying machine to carry out.

Optimize combination of process parameters accordingly in above each processes employ, can effectively reduce crotons aldehyde in the obtained cigarette product flue gas.

The invention has the beneficial effects as follows from cigarette processing technology angle and explored cigarette lowering harm and decreasing coking new way, have important significance for theories and actual application value.

Description of drawings

The main technological process figure of the cigarette throwing that Fig. 1 the present invention relates to.

The specific embodiment

The present invention is further elaborated below in conjunction with embodiment.

Embodiment 1:

To produce the tobacco sample that obtains as blank sample by set cigarette technology for making tobacco threds parameter; In the loose operation of microwave, press the optimization working process parameter combination adjusting process parameter of microwave power 136KW, process time 320s, all the other procedure technology parameter constants are produced the tobacco sample that obtains for optimizing sample; The flue gas crotonaldehyde content detection of two samples sees Table 1.

Loose process optimization sample of table 1 microwave and blank sample crotonaldehyde content detection result

As can be seen from Table 1, the crotons aldehyde has reduced by 15.72% than blank sample in the tobacco sample flue gas that production obtains under the loose optimization combination of process parameters of microwave, has tangible reduction crotonaldehyde content content effect.

Embodiment 2:

To produce the tobacco sample that obtains as blank sample by set cigarette technology for making tobacco threds parameter; In the loosening and gaining moisture operation, press the optimization working process parameter combination adjusting process parameter of vapour, (operating) water nozzle steam pressure 0.3MPa, 48 ℃ of return air temperatures, drum speed 9r/min, all the other procedure technology parameter constants are produced the tobacco sample that obtains and are the optimization sample; The flue gas crotonaldehyde content detection of two samples sees Table 2.

Table 2 loosening and gaining moisture process optimization sample and blank sample crotonaldehyde content detection result

As can be seen from Table 2, the crotons aldehyde has reduced by 14.64% than blank sample in the tobacco sample flue gas that production obtains under loosening and gaining moisture optimization combination of process parameters, has tangible reduction crotonaldehyde content effect.

Embodiment 3:

To produce the tobacco sample that obtains as blank sample by set cigarette technology for making tobacco threds parameter; In the HT+ drying process, press the optimization working process parameter combination adjusting process parameter of HT working steam pressure 0.60MPa, 85 ℃ of hot blast temperatures, humidity discharging throttle opening 53%, hot blast throttle opening 70%, drum speed 9r/min, all the other procedure technology parameter constants are produced the tobacco sample that obtains and are the optimization sample; The flue gas crotonaldehyde content detection of two samples sees Table 3.

Table 3HT+ drying process is optimized sample and blank sample crotonaldehyde content detection result

As can be seen from Table 3, the crotons aldehyde has reduced by 56.01% than blank sample in the tobacco sample flue gas that production obtains under HT+ baking silk optimization combination of process parameters, has tangible reduction crotonaldehyde content effect.

Steam pressure is gauge pressure herein.

Crotonaldehyde: detect according to " the mensuration high performance liquid chromatography of main carbonyls in the YC/T 254-2008 cigarette mainstream flue gas ".

Some explanation:

1, about the horizontally selective limiting factor of patent technological parameter:

Because this patent is applied to suitability for industrialized production reality, therefore, mainly be subjected to the restriction of following objective condition about the selection of parameter horizontal extent:

(1) restriction of the horizontal extent of process equipment own, working ability;

(2) the cigarette product aesthetic quality fluctuation that obtains after the parameter adjustment can not be too big, otherwise can influence acceptance and the degree of recognition of consumer to product.

2, about optimizing the stability of producing under the combination of process parameters:

The index detected value that this patent obtains under the optimization combination of process parameters is three explained hereafter products and detects mean value.

Claims (1)

1. the cigarette technological method for processing of a low crotonaldehyde content is main by the loose operation of the microwave that carries out in turn, loosening and gaining moisture operation and HT+ drying process composition, and it is characterized in that: the concrete technological parameter of described operation is as follows:

1), the loose operation of microwave: microwave power 136KW, process time 320s;

2), loosening and gaining moisture operation: vapour, (operating) water nozzle steam pressure 0.3MPa, 48 ℃ of return air temperatures, drum speed 9r/min;

3), HT and drying process: HT working steam pressure 0.60MPa, 85 ℃ of hot blast temperatures, humidity discharging throttle opening 53%, hot blast throttle opening 70%, drum speed 9r/min;

The leaf silk warming and humidifying operation of HT for adopting tunnel type leaf silk warming and humidifying machine to carry out.

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