Water retaining material, preparation method thereof and application of water retaining material in filter rod

A technology of water-retaining materials and water-retaining capacity, applied in the fields of application, chemical instruments and methods, e-liquid filter elements, etc., can solve the problems of high production cost and discomfort, achieve high safety, simple preparation process, and improve selective adsorption performance Effect

Active Publication Date: 2011-04-27
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, activated carbon is used as an additive for cigarette tip rods. While effectively filtering the gas phase components of the smoke, the carbon smell it brings to the smoke makes smokers feel uncomfortable.
And CN1583257A di

Method used

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  • Water retaining material, preparation method thereof and application of water retaining material in filter rod
  • Water retaining material, preparation method thereof and application of water retaining material in filter rod

Examples

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Effect test

Embodiment 1

[0025] Sieve the porous activated alumina to take 40-100 mesh particles, remove impurities, wash and soak, take 50ml (wet volume) and add it to 50-500ml 0.1%-10% polyvinyl alcohol alkali solution, that is The volume ratio of the two is 1:1-1:10, stirred at room temperature for 1-4h or ultrasonically oscillated for 10-60min, filtered, and vacuum-dried at 30-50°C for 0.5-1h to obtain water-retaining material 1.

[0026] Apply the water-retaining material 1 to cigarettes in the form of binary composite filter rods, the addition amount is 35mg / cig, and it is marked as cigarette sample 1. The cigarette without any filter modification material is used as a control sample. (22±1)°C and relative humidity (60±2)% for 48 hours, and then sorted by weight (average weight ±0.02g) and suction resistance (average suction resistance ±49Pa) to pick out the test that meets the standard cigarette. The cigarette smoking test was carried out on a smoking machine according to the standard smoking ...

Embodiment 2

[0031] After washing and soaking the porous hydrophilic vinyl polymer HW-65F, take 50ml (wet volume) and add it to 50-500ml 0.1%-10% carboxymethyl starch alkali solution, that is, the volume ratio of the two is 1:1~1:10, stir at room temperature for 1-4h or ultrasonically oscillate for 10-60min, filter, and vacuum dry at 30-50°C for 0.5-1h to obtain water-retaining material 2.

[0032] Apply the water-retaining material 2 to cigarettes in the form of binary composite filter rods, the added amount is 35 mg / cig, and it is marked as cigarette sample 2. The cigarette without any filter modification material is used as the control sample. (22±1)°C and relative humidity (60±2)% for 48 hours, and then sorted by weight (average weight ±0.02g) and suction resistance (average suction resistance ±49Pa) to pick out the test that meets the standard cigarette. The cigarette smoking test was carried out on a smoking machine according to the standard smoking conditions, and the release of hy...

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Abstract

The invention relates to a water retaining material, a preparation method thereof and an application of the water retaining material in a filter rod. The invention is characterized in that water-retaining substances and alkaline components are introduced into a porous material with larger specific surface area simultaneously, and the water-retaining material for selectively reducing hydrogen cyanide (HCN) in mainstream cigarette smoke is obtained. The material has certain content of water due to water-retaining substances in the material, simultaneously the alkaline components can generate acid-alkaline reaction with the hydrophilic HCN in the mainstream cigarette smoke, and the selective harm reduction performance of the material to the HCN in the mainstream cigarette smoke is further enhanced. 10-40mg of the material is added in per piece of the filter rod of the cigarette, therefore, the release amount of the hydrogen cyanide in the mainstream cigarette smoke can be reduced by more than 30 percent, while the release amount of tar is basically not changed or reduced slightly, and simultaneously no bad influence is caused on the smoking quality of cigarettes, and the purpose of realizing selective harm reduction is further achieved.

Description

technical field [0001] The invention relates to the technical field of tobacco processing, in particular to a water-retaining material for selectively reducing HCN in cigarette mainstream smoke, a preparation method thereof, and an application in a filter stick. Applying the material to cigarette filter rods can effectively reduce the amount of hydrocyanic acid released in mainstream smoke, while the amount of tar released is basically unchanged or slightly reduced, and at the same time has no adverse effect on the smoking quality of cigarettes. Background technique [0002] Hydrocyanic acid (HCN) is a highly volatile and highly toxic substance, and the poisoning effect is mainly through CN - occur. Hydrocyanic acid in cigarettes is mainly derived from the oxidative decomposition of nitrates and nitrogen-containing compounds in tobacco during the burning and smoking process, and its release amount is about 30-300 μg / cig. Hydrocyanic acid in smoke is rapidly absorbed by the ...

Claims

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Application Information

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IPC IPC(8): B01J20/28B01J20/30B01J20/26A24D3/06
Inventor 聂聪孙学辉赵乐王宜鹏杨松彭斌刘惠民谢剑平
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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