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Tobacco leaf laser drilling method capable of simultaneously reducing tar and CO in cigarettes

A laser drilling and tobacco leaf technology, applied in laser welding equipment, tobacco, tobacco preparation, etc., can solve the problem of reducing cigarette tar and CO at the same time, and achieve the effect of reducing tar and CO, increasing the contact area, and simple measures

Active Publication Date: 2012-10-10
HUBEI CHINA TOBACCO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is no effective method for simultaneously reducing cigarette tar and CO

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Take 50kg of a certain brand of cigarette leaf group for feeding, after loosening and moisture regaining treatment, use a high-power continuous laser to emit a continuous laser beam, chop it into a laser pulse sequence with a mechanical chopper disc, and then pass through a half-transparent and half-reflective mirror. The formed laser pulse sequence is optically split and transformed into a multi-channel laser pulse sequence with equal amplitude. Laser drilling is performed with this multi-channel and equal-amplitude laser pulse sequence. The laser beam is perpendicular to the tobacco leaf conveying direction, and the tobacco leaf surface The diameter of the punched holes is 0.05 mm, and the distance between the holes is 5.0 mm. Rolled into cigarettes through normal subsequent processing steps.

[0011] Table 1 and Table 2 are the effect comparison tables of cigarettes made by this method and conventional cigarettes with the same cigarette formula and the same processin...

Embodiment 2

[0017] Take 50kg of cigarette leaves of a certain brand for feeding, after loosening and moisture regaining treatment, use a high-speed rotating polygonal mirror to scan the continuous laser beam emitted by a low-power continuous laser into several independent optical focusing heads in sequence, continuous laser Each sweeping of the beam forms a small laser pulse in the focusing head, and repeated sweeping forms a small laser pulse sequence in each focusing head for laser drilling. The laser beam is perpendicular to the conveying direction of the tobacco leaves, and the tobacco leaves The diameter of the holes punched on the surface is 0.1 mm, and the distance between the holes is 5.0 mm. Rolled into cigarettes through normal subsequent processing steps.

[0018] Table 3 and Table 4 are the effect comparison tables of cigarettes made by this method and conventional cigarettes with the same cigarette formula and the same processing technology.

[0019] table 3

[0020] ...

Embodiment 3

[0024] Take 50kg of a cigarette leaf group of a certain brand for feeding, after the feeding process, use a high-speed rotating polygonal mirror to divide the high-power laser beam into multiple lower-power continuous laser beams by optical splitting, and scan into several successively. Independent optical focusing head, each sweeping of the continuous laser beam forms a small laser pulse in the focusing head, repeated sweeping forms a small laser pulse sequence in each focusing head, and then uses the integrated focusing head (that is, the focusing mirror) forms closely arranged focal points to perform online laser drilling on the surface of the continuously moving tobacco leaves, and the laser beam is perpendicular to the conveying direction of the tobacco leaves. The diameter of the holes punched on the surface of the tobacco leaf is 0.2 mm, and the distance between the holes is 3 mm. Rolled into cigarettes through normal subsequent processing steps.

[0025] Table 5 and T...

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Abstract

The invention discloses a tobacco leaf laser drilling method capable of simultaneously reducing tar and CO in cigarettes, which belongs to processing methods of cigarettes. The method is realized in a way that: after the step of loosening and moisture regaining and before the step of shredding, when the tobacco material is in the loose and moist lamellar state, the tobacco leaves are put on a conveyer belt which makes a constant speed continuous motion, the conveyer belt passes through below a laser pulse device fixed on the machine frame, and the laser pulse device carries out on-line laser drilling on the tobacco leaves, so that a plurality of micropores are formed on the tobacco leaves. The diameter of the micropores of the tobacco leaf laser drilling is 0.05-0.3 mm, the interval amongmicropores is 2.0-10.0 mm, and the micropores are uniformly distributed. The method has the advantages of simple measures and unique technical scheme, and the microbores can effectively increase the contact area of tobacco shreds with air, thereby ensuring complete combustion of tobacco shreds and effectively reducing tar and CO.

Description

technical field [0001] The invention belongs to a cigarette processing method, in particular to a tobacco processing method for simultaneously reducing cigarette tar and CO by performing laser drilling on the surface of tobacco leaves. Background technique [0002] Cigarette smoke contains more than 4,000 kinds of chemical substances, 0.6% of which are toxic and harmful strong carcinogens, which can induce the occurrence of lung cancer, throat cancer and other diseases. In order to reduce the harm of smoking, cigarette enterprises adopt measures such as blending different leaf groups, adding stems, thin slices and expanded tobacco, changing the length of cigarette filters, filling activated carbon, increasing the air permeability of rolling paper or tipping paper, etc., to reduce the harm of smoking. The tar content of cigarettes and toxic and harmful carcinogens. Although the cigarette tar has been reduced to a certain extent through these measures, the reduction in CO con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/18B23K26/38B23K26/382
Inventor 周红审杨尘程炳发覃艳东姚卫平张环宇张钦司辉陈义坤
Owner HUBEI CHINA TOBACCO IND
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