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Filtering rod for cigarette and preparing method

A manufacturing method and filter rod technology, which is applied in the fields of e-liquid filter elements, tobacco, applications, etc., can solve problems not involved in the preparation method of cigarette filter rods, achieve good filtration performance and physical and mechanical properties, cheap price, and large specific surface area Effect

Inactive Publication Date: 2007-08-29
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method does not relate to cigarette filter rods and their preparation methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take a polylactic acid tow for cigarettes, the single fiber linear density is 3.9dtex, the total density is 4.7ktex, and the number of crimps is 21±3 pieces / 25mm. The tow is opened and sprayed on a YL11 type opening and gluing machine, and then coated with triacetin, which is equivalent to 8% of the net weight of the fiber. Wrap and cut the rods on a YL21 filter rod forming machine, use D-grade filter rod paper and latex adhesive, iron at 170°C, and place the cut filter rods at room temperature for 48 hours. The resulting filter rod has a length of 120 mm, a circumference of 24.1 mm, out-of-roundness of 0.2 mm, a suction resistance of 3200±300 Pa, a hardness of 89±3%, a porosity of 87±3%, an even incision, no retraction, and no pollution smell. Tear off the wrapping paper and pick the filter rod with your hands to observe the bonding between the fibers.

Embodiment 2

[0021] Take a polylactic acid tow for cigarettes, the single fiber linear density is 3.1dtex, the total density is 5.0ktex, and the number of crimps is 21±3 pieces / 25mm. The tow is opened and sprayed on a YL11 type opening and gluing machine, and coated with a commercially available quick-drying solvent of cellulose acetate, and the actual coating solvent is equivalent to 9.5% of the net weight of the fiber. Rods were formed and cut on a YL21 filter rod forming machine, using grade D filter rod paper and latex adhesive, ironed at 160°C, and the cut filter rods were placed at room temperature for 24 hours. The resulting filter rod has a length of 120mm, a circumference of 24.1mm, out-of-roundness of 0.2mm, suction resistance of 3600±300Pa, hardness of 89±3%, porosity of 86±3%, incision even, no retraction, and no pollution smell. Tear off the wrapping paper and pick the filter rod with your hands to observe the bonding between the fibers.

Embodiment 3

[0023] Take a polylactic acid tow for cigarettes, the single fiber linear density is 3.2dtex, the total density is 3.8ktex, and the number of crimps is 24±3 pieces / 25mm. The tow is loosened and sprayed on the YL11 type opening and gluing machine, and the ethanol solution of triacetin (triacetin to ethanol volume ratio 2:1) is used to spin and coat the tow. The actual coated triacetin Equivalent to 5% of the net fiber weight. Wrap and cut into rods on a YL21 filter rod forming machine, use grade D filter rod paper and latex adhesive, iron at 170°C, and place the cut filter rods under ventilation at 40°C for 24 hours. The resulting filter rod has a length of 120mm, a circumference of 24.1mm, out-of-roundness of 0.2mm, suction resistance of 2800±300Pa, hardness of 86±3%, and porosity of 89±3%. Tear off the wrapping paper and pick the filter rod with your hands to observe the bonding between the fibers.

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Abstract

The present invention relates to a polylactic acid filter rod for cigarette. It is made up by using polylactic acid tow for cigarette through the processes of opening, adhesive bonding, bundling, cutting and after-treatment, its filament linear density is 2-8 dtex, its tow linear density is 3-6 ktex and its crimp ratio is 15-30 / 25 mm. The contacted parts of adjacent fibers are mutually bound and all fibers in the rod are cohesive together to form communicated 3-D network structure.

Description

technical field [0001] The invention relates to a filter stick for cigarettes and a preparation method thereof, in particular to a biodegradable filter stick for cigarettes and a preparation method thereof. Background technique [0002] Cigarette filter is an indispensable part of cigarettes. It can filter, block and absorb harmful components in the breath, such as nicotine and tar. For a long time, two kinds of filter materials have been mainly used in the market, one is cellulose acetate fiber and the other is polypropylene fiber. Cellulose acetate is easily spun into fine denier fibers, and the bonding process from fiber to filter rod is relatively easy. The filter rod and filter tip made have superior comprehensive performance and are suitable for use in medium and high-end cigarettes. But it uses high-quality wood as raw material, and the process from wood to cellulose to cellulose acetate is accompanied by more pollution problems. The use of dry spinning requires the...

Claims

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Application Information

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IPC IPC(8): A24D3/04A24D3/06A24D3/02C09J139/06
Inventor 景遐斌杨立新赵淑珍陈学思边新超
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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