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Tobacco smoke filter materials and filter tip having same

A filter material and filter tip technology, which is applied in the fields of e-liquid filter element, tobacco, thin material treatment, etc., can solve the problems of reducing quality and polluting the environment

Inactive Publication Date: 2003-03-05
DAICEL CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because this cellulose ester fiber has a dense fibrous structure, the decomposability of this filter material is still not enough to solve the problem of its pollution of the environment. In addition, this filter tip may reduce the inherent quality of cigarette smoke (aroma, taste and palatability)

Method used

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  • Tobacco smoke filter materials and filter tip having same
  • Tobacco smoke filter materials and filter tip having same
  • Tobacco smoke filter materials and filter tip having same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0091] Cellulose diacetate (degree of substitution: 2.5) was dissolved in a solvent consisting of 95 parts by weight of acetone and 5 parts by weight of water to obtain a solution with a concentration of 20% by weight. composed (10:90 by weight) coagulant solution, and its temperature was adjusted to 20°C.

[0092] In the production of filters, use figure 1 and figure 2 The device with the cutting element shown, the above prepared coagulation solution along the figure 1 The direction shown by the arrow of the arrow passes through the channel 1a, and at the same time, the cellulose diacetate solution prepared above is fed from the feeding port 4, and is extruded from the nozzle of the small hole 5 with a diameter of 200 μm, and enters the coagulant. Simultaneously cut off by cutter 8 (diameter is 8cm, rotating speed is 2000rpm), therefore, the cellulose diacetate extrudate becomes partly fibrous under the effect of cutter shear force, and when it contacts with coagulant, car...

example 2

[0096]The fiber A (80 parts by weight) in the wet state obtained in Example 1 was added to water of 400,000 parts by weight, and then soft wood (conifer) bleached kraft pulp B (20 parts by weight) was added to make a Seed the water dispersion (slurry), use the paper machine to carry out the wet laying of the decomposed body, and dehydrate and dry with the ordinary method to obtain 30g / m 2 The sheet material, the formulation used in this sheet is the same as that used in the feeding method. However, the degree of water disintegration of this sheet was 72%.

example 3

[0098] The sheet obtained in Example 2 was crumpled without adding a plasticizer, and rolled into a filter rod with a machine at a speed of 100 m / min. The obtained filter rod had a length of 25 mm, a circumference of 24.5 m, and a weight of 0.23 g per rod. The degree of disintegration and the sensory score of the filter rod were 75% and 2.8, respectively.

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PUM

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Abstract

A tobacco smoke filter material comprises a fibrillated cellulose ester fiber with an average fiber diameter of 15 to 250 mu m and a BET specific surface area of 0.5 to 4.5 m2 / g. The fibrous cellulose ester content of the material may for example be not less than 20 weight %. The cellulose ester fiber is provided by, for example, extruding a cellulose ester solution from a nozzle into a precipitating agent for the particular cellulose ester and subjecting the extrudate to a shear force. This filter material can be used in the form of, for example, a filament, web or sheet to provide a tobacco smoke filter which assures good smoking qualities and excellent wet disintegratability.

Description

technical field [0001] The present invention relates to a smoke filter material with improved wet decomposability, cellulose ester fibers used for the material, a method for producing the fiber and a cigarette filter produced from the material. This filter is distinguished by a high intrinsic quality of the smoke and its improved wet disintegration. Background technique [0002] Because the cigarette filter is designed to remove the tar component of the smoke, and it provides a satisfactory internal quality of the smoke at the same time, therefore, the filter rod is usually made of a plasticizer (such as triacetin) Cast from cellulose acetate fiber bundles. Because the filaments in the fiber bundle are partially fused to each other by the plasticizer, after the filter rod is used and thrown away, it takes a long time for the filter rod to decompose itself in the external environment , therefore, this increases the pollution to the environment. [0003] Cigarette filter wr...

Claims

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Application Information

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IPC IPC(8): A24D3/02A24D3/04A24D3/10C08L101/16D01D5/06D01D5/40D01F2/28
CPCA24D3/10D01D5/40D01F2/28Y10T428/2904Y10T428/2965
Inventor 松村裕之岛本周柴田彻
Owner DAICEL CHEM IND LTD