CN101946980A - Technique for processing cigarette with low NAB release - Google Patents

Abstract

The invention relates to a technique for processing cigarette with low NAB release. The technological parameters of main work procedures are as follows: 1) microwave loosing work procedure: microwave power is 120kW and processing time is 240s; 2) loosing dampening work procedure: vapour pressure of a water vapour nozzle is 0.3MPa, hot blast temperature is 48 DEG C, and rotating speed of barrel is 9r/min; 3) HT and cut tobacco drying work procedure: HT working vapour pressure is 0.3MPa, hot blast temperature is 85 DEG C, the aperture of a dampness damping throttle is 31%, the aperture of a hot blast throttle is 30%, and the rotating speed of barrel is 13r/min; and HT is a leaf thread heating dampening work procedure carried out by adopting a tunnel type leaf thread heating dampening machine. In the invention, technological parameters of the existing work procedure are optimized, thus effectively reducing NAB release in smoke of the obtained cigarette product.

Description

A kind of cigarette technological method for processing of low NAB burst size

Technical field

The present invention relates to the method for tobacco cutting, be specifically related to a kind of cigarette technological method for processing of low NAB burst size.

Background technology

Smoking is harmful to your health has obtained the consistent of various circles of society and has generally acknowledged, under the promotion of the World Health Organization, many national government and various back suction cigarette group, the anti-smoking campaign in the whole world grows to even greater heights, and the social pressures that tobacco business is subjected to are increasing.Stipulate in Chinese government's signed " Framework Convention on Tobacco Control " that the Chinese government will 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.For improving the quality and the security of China's cigarette product, State Tobacco Monopoly Bureau clearly proposes to 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.

As the NAB of one of tobacco-specific nitrosamine, because its toxicity is classified as 3 grades of carcinogenic substances by international cancer research institution.In tobacco harmful substance detection range is also listed NAB by State Tobacco Monopoly Bureau.At present, reducing this type of approach that is harmful to has in the cigarette filter production process and to add the tobacco leaf of tobacco-specific nitrosamine that this type of material is had the material of adsorption capacity or selects low content for use as the cigarette raw material, and does not appear in the newspapers from the burst size that cigarette processing technology angle sets about reducing NAB.

Summary of the invention

The cigarette technological method for processing that the purpose of this invention is to provide a kind of low NAB burst size, set about by the loose operation of microwave from the cigarette processing technology, loosening and gaining moisture operation, these three procedure technology parameters of HT+ drying process, explore a kind of cigarette technological method for processing of low NAB burst size.

The object of the present invention is achieved like this: a kind of cigarette technological method for processing of low NAB burst size, 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 120KW, process time 240s;

2), loosening and gaining moisture operation: steam nozzle steam pressure 0.3Mpa, 48 ℃ of hot blast temperatures, drum speed 9r/min;

3), HT and drying process: HT working steam pressure 0.3Mpa, 85 ℃ of hot blast temperatures, humidity discharging throttle opening 31%, hot blast throttle opening 30%, drum speed 13r/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 the burst size of NAB 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 tobacco flow process chart that Fig. 1 the present invention relates to.

The specific embodiment

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

Embodiment 1:

In the loose operation of technology for making tobacco threds microwave, be the basic process parameter with the loose procedure technology parameter of the microwave of focus shaft brand cigarette, carry out tobacco cutting with this basic process parameter, the tobacco sample of generation is a blank sample; The tobacco sample of producing according to the optimization parameter of step 1 is the optimization sample, and the result is as follows:

The burst size of the loose operation sample of table 1 microwave NAB

The sample title	Microwave power (KW)	Process time (second)	NAB burst size (ng/cig)
				Blank sample	140	320	1.15
Blank sample 1	180	300	0.65
				Blank sample 2	150	360	0.69
Blank sample 3	120	240	0.65
				Comparative sample	120	240	0.53

As can be seen from Table 1, the burst size of producing NAB in the tobacco sample flue gas that obtains under the microwave loosening technique parameter combinations of having optimized has reduced by 53.91% than blank sample; The burst size of NAB obviously reduces in the sample flue gas of producing under the optimized parameters.

Embodiment 2:

In the technology for making tobacco threds loosening and gaining moisture operation, be the basic process parameter with the loosening and gaining moisture procedure technology parameter of focus shaft brand cigarette, carry out tobacco cutting with this basic process parameter, the tobacco sample of generation is a blank sample; The tobacco sample of producing according to the optimization parameter of step 2 is the optimization sample, and the result is as follows:

The burst size of table 2 loosening and gaining moisture operation tobacco sample NAB

As can be seen from Table 2, the NAB burst size has reduced by 39.13% than blank sample in the tobacco sample of producing under the loosening and gaining moisture combination of process parameters of having optimized that obtains, and the burst size of NAB obviously reduces in the sample flue gas that the technological parameter of having optimized is produced down.

Embodiment 3:

In the technology for making tobacco threds HT+ drying process, be the basic process parameter with the HT+ drying process technological parameter of focus shaft brand cigarette, carry out tobacco cutting with this basic process parameter, the tobacco sample of generation is a blank sample; The tobacco sample of producing according to the optimization parameter of step 3 is the optimization sample, and the result is as follows:

The burst size of table 3HT+ drying process tobacco sample NAB

As can be seen from Table 3, the burst size of producing NAB in the tobacco sample flue gas that obtains under the HT+ baking silk combination of process parameters of having optimized has reduced by 57.39% than blank sample; The burst size of NAB obviously reduces in the sample flue gas that the technological parameter of having optimized is produced down.

Steam pressure is gauge pressure herein.

The detection establishing criteria GB/T 23228-2008 of sample NAB burst size, its Chinese name is called N-nitroso anabasine.

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 NAB burst size 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 120KW, process time 240s;

2), loosening and gaining moisture operation: steam nozzle steam pressure 0.3Mpa, 48 ℃ of hot blast temperatures, drum speed 9r/min;

3), HT and drying process: HT working steam pressure 0.3Mpa, 85 ℃ of hot blast temperatures, humidity discharging throttle opening 31%, hot blast throttle opening 30%, drum speed 13r/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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