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Bamboo charcoal fiber and preparation method thereof and application of bamboo charcoal fiber to cigarette filter tips

A technology of bamboo charcoal fiber and cigarette filter tip, applied to the application of bamboo charcoal fiber in cigarette filter tip, in the field of bamboo charcoal fiber, can solve the problems of increasing the difficulty of filter tip processing, peculiar smell of smoke, and small reduction, and achieve product quality The effect of poor stability, low density of bamboo charcoal and strong adsorption capacity

Active Publication Date: 2012-01-04
YUNNAN XINYUN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the reduction of harmful substances in smoke through cigarette filters is mainly to reduce the content of single or several substances, and the reduction is small
Moreover, the introduction of adsorbents increases the difficulty of filter tip processing, and the cost is relatively high, and even the introduction of some adsorbents leads to peculiar smells in the smoke

Method used

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  • Bamboo charcoal fiber and preparation method thereof and application of bamboo charcoal fiber to cigarette filter tips
  • Bamboo charcoal fiber and preparation method thereof and application of bamboo charcoal fiber to cigarette filter tips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Material selection: choose 6 to 8 year old bamboo slices near the root and put them into the bamboo charcoal kiln.

[0042] Carbonization: 4 steps are taken: (1) drying at 100°C for 4 hours; (2) pre-carbonization at 250°C for 4 hours; (3) carbonization at 400°C for 1.5 hours; (4) calcination at 850°C for 30 minute.

[0043] Processing: After the calcination, when the natural temperature of the bamboo charcoal kiln drops to 50°C, the bamboo charcoal comes out of the kiln; the bamboo charcoal blocks are crushed to an average particle size of 2 μm, and packed for later use.

[0044] Add 15% bamboo charcoal based on the weight of the cellulose acetate slices, heat the bamboo charcoal powder and the cellulose acetate slices at a temperature of 260°C and a pressure of 3MPa to blend, mix well and then make silk, the diameter of the tow is 10μm; the bamboo charcoal tow is processed Then make a filter.

Embodiment 2

[0046] Material selection: choose 6 to 8 year old bamboo slices near the root and put them into the bamboo charcoal kiln.

[0047] Carbonization: 4 steps are taken: (1) drying at 150°C for 3.5 hours; (2) pre-carbonization at 180°C for 5 hours; (3) carbonization at 450°C for 1 hour; (4) then drying at 1000°C Calcined for 20 minutes.

[0048] Processing: After the calcination, the bamboo charcoal is discharged from the kiln after the temperature of the bamboo charcoal kiln is lowered to below 50°C; the charcoal is crushed and processed to an average particle size of 3 μm, and packed for later use.

[0049] Based on the weight of acetate fiber slices, add 0.1% bamboo charcoal, heat and blend bamboo charcoal powder and propionate fiber slices at a temperature of 300°C and a pressure of 5 MPa, mix them and make silk, the diameter of which is 5 μm; bamboo charcoal tows are processed Then make a filter.

Embodiment 3

[0051] Material selection: choose 6 to 8 year old bamboo slices near the root and put them into the bamboo charcoal kiln.

[0052] Carbonization: 4 steps are taken: (1) drying at 120°C for 200 minutes; (2) pre-carbonization at 350°C for 5 hours; (3) carbonization at 350°C for 1.5 hours; (4) calcination at a temperature above 450°C for 40 minutes .

[0053] Processing: After the temperature of the bamboo charcoal kiln is lowered to below 50°C, the bamboo charcoal is discharged from the kiln; the charcoal block is crushed and processed to a particle size of 1 μm, and packed for later use.

[0054] Based on the weight of acetate fiber slices, add 8% bamboo charcoal, heat and blend bamboo charcoal powder and acetate fiber slices at a temperature of 250°C and a pressure of 6 MPa, and then make silk after mixing, with a diameter of 8 μm; the bamboo charcoal tow is processed and made into a filter.

[0055] The filter tips obtained in the above examples were compared with those added...

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Abstract

The invention relates to bamboo charcoal fiber and application of the bamboo charcoal fiber to cigarette filter tips. The bamboo charcoal fiber consists of superfine bamboo charcoal powder and a fiber formation material which are co-melted into filaments, wherein the superfine bamboo charcoal powder accounts for 0.1 to 15 percent based on the weight of the fiber formation material. The bamboo charcoal fiber is nontoxic and odorless, has strong adsorption capacity on tar in cigarette smoke, particularly small molecular harmful substances, and has high adsorption efficiency. The production process is simple and convenient, and additional equipment is not required to be arranged for the production and rolling connection of filter tips.

Description

【Technical field】 [0001] The invention relates to the technical field of cigarette filter preparation. More specifically, the present invention relates to a kind of bamboo charcoal fiber, also relates to the preparation method of said bamboo charcoal fiber, and the application of said bamboo charcoal fiber in cigarette filter. 【Background technique】 [0002] Tobacco can produce a variety of harmful substances after burning, such as carbon monoxide, hydrocyanic acid, aldehydes, ammonia, phenols, nitrosamines and polycyclic aromatic hydrocarbons. Among them, nitrosamines and polycyclic aromatic hydrocarbons can change the genetic structure of cells, stimulate or stimulate the formation of tumors; hydrocyanic acid can quickly combine with cytochrome oxidase, causing cells to lose their normal functions and die due to hypoxia; Phenolic and phenolic compounds can cause oxidative damage to the human body, cause pathological changes or reduce the body's defense capabilities. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/06A24D3/14
Inventor 谷向春黄正虹周小文
Owner YUNNAN XINYUN TECH DEV CO LTD
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