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A method for modifying cellulose acetate filter rods for cigarettes by using high-energy electron beams

A technology of cellulose acetate and high-energy electron beams, which is applied in the fields of e-liquid filter elements, applications, tobacco, etc., can solve the problem that the modification effect of cigarette filter rods is not obvious, and achieve good production and application prospects, simple operation process, and water absorption performance increased effect

Active Publication Date: 2018-11-13
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high chemical and physical stability of cellulose acetate, the modification effect of cigarette filter rods is not significant
At present, there are still many application problems in the modification of tobacco filter rod tow

Method used

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  • A method for modifying cellulose acetate filter rods for cigarettes by using high-energy electron beams
  • A method for modifying cellulose acetate filter rods for cigarettes by using high-energy electron beams

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Utilize high-energy electron accelerator to modify the specific steps of cellulose acetate bundle filter rod as follows:

[0016] According to the requirements of the filter rod forming production process, a cellulose acetate tow filter rod (100 / 120mm) was prepared and placed for 2 hours after forming.

[0017] Under a nitrogen atmosphere, the cellulose acetate bundle filter rod filter rod is placed on the high-energy electron beam drive track. Through the crawler transmission, the filter rod passes through the irradiation area of ​​the electron accelerator at a constant speed. Control the irradiation dose to 50-100KGy, and irradiate the cellulose acetate bundle filter sticks one by one. Leave for 4 hours after irradiation.

[0018] After irradiation, the filter rod is immersed in 5% sodium carbonate solution for 2-3 hours, and then vacuum-dried; or directly placed at 40-60° C. and vacuum negative pressure for 10 hours.

[0019] After equilibrating under the conditio...

Embodiment 2

[0021] Utilize the cobalt source high-energy electron beam emission source to modify the concrete steps of cellulose acetate filter rod as follows:

[0022] According to the requirements of the filter rod forming production process, a cellulose acetate filter rod (100 / 120mm) was prepared and placed for 2 hours after forming.

[0023] Under nitrogen or air atmosphere, place the filter rod in the radiation sector of the cobalt source, control the radiation dose at 50-100KGy, take out the filter rod and place it for 4 hours.

[0024] After irradiation, the cellulose acetate filter stick is immersed in 5% sodium carbonate solution for 2-3 hours and then vacuum-dried; or directly placed at 40-60° C. under vacuum negative pressure for 10 hours.

[0025] After equilibrating under the condition of normal temperature and constant humidity, it is applied to the slitting and wrapping process to prepare cigarettes.

[0026] In order to prove the superiority of the preparation method of t...

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Abstract

The invention discloses a method for modifying a cellulose acetate filtering stick for a cigarette by adopting high-power electron beams. The method is characterized by comprising the following steps: (1) carrying out transmission irradiation on the cellulose acetate filtering stick in a nitrogen gas or air atmosphere by using the high-power electron beams generated by a high-power electron accelerator or a cobalt source, and leaving the filtering stick to stand after irradiation is finished, wherein the irradiation dose is controlled to be within a range of 50-100 KGy; (2) placing the filtering stick subjected to irradiation modification obtained in the step (1) for 10h under vacuum negative pressure condition with temperature of 40-60 DEG C for removing macromolecules such as free acetic acid or neutralizing acidic components, and drying the filtering stick; and (3) balancing water content in the neutralized or separated filtering stick obtained in the step (2), and directly applying the filtering stick to the split rolling technology for preparing the cigarette.

Description

technical field [0001] The invention relates to the technical field of modifying cellulose acetate filter rods, in particular to a method for modifying tobacco cellulose acetate filter rods by using high-energy electron beams. Background technique [0002] At present, the main raw material of cigarette filter rod tow is cellulose acetate. After the cellulose acetate tow is extruded and bundled, it is loosened, plasticized with triacetin and wrapped with forming paper to prepare a filter rod for cigarettes. The cellulose acetate cigarette filter stick has the advantages of non-toxic, tasteless, small suction resistance, good adsorption effect, and high efficiency of tar retention in smoke. In order to further improve the effect of cellulose diacetate tobacco filter sticks on trapping and absorbing smoke, scientists have carried out a lot of research on the modification of cellulose acetate tow in cigarette filter sticks (physical means include high-temperature steam, plasma,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/10
Inventor 程量余耀丁海燕张莹詹建波郑晗
Owner CHINA TOBACCO YUNNAN IND
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