发明名称 |
Tobacco filter material and a method of producing the same |
摘要 |
Using a slurry containing a particulate or fibrous cellulose ester and a wood pulp with a Canadian standard freeness of 100 to 800 ml in a ratio of 10/90 to 90/10 (weight %), a tobacco filter material in the form of a sheet having a nonwoven web structure is produced. The slurry may contain a microfibrillated cellulose in a proportion of 0.1 to 10 weight % on a nonvolatile matter basis. The cellulose ester may be a cellulose acetate with a combined acetic acid in the range of 30 to 62%. This tobacco filter material in a sheet form can be applied to a tobacco filter having a high dry strength and, yet, a high degree of wet disintegratability without adversely affecting the smoking quality of tobacco. Thus, the potential environmental pollution is mitigated by the tobacco filter.
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申请公布号 |
US5967149(A) |
申请公布日期 |
1999.10.19 |
申请号 |
US19970899637 |
申请日期 |
1997.07.24 |
申请人 |
DAICEL CHEMICAL INDUSTRIES, LTD |
发明人 |
TSUGAYA, HITOSHI;SHIMAMOTO, SYU |
分类号 |
A24D3/02;A24D3/04;A24D3/08;A24D3/10;A24D3/16;B01J20/24;C08L101/16;D21H11/16;D21H13/06;(IPC1-7):A24D3/08 |
主分类号 |
A24D3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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