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公开(公告)号:US3722515A
公开(公告)日:1973-03-27
申请号:US3722515D
申请日:1972-03-13
发明人: REYNOLDS M , HAMMERSMITH J , PARISH H
IPC分类号: A24C5/46 , A24C5/60 , A24D1/02 , D21H20060101
CPC分类号: D21H5/16
摘要: An improved cigarette is prepared through use of modified cigarette paper as a wrapper. The wrapper is treated in preselected areas with a burn control additive comprising a mixture of potassium chlorate and sodium chlorate in a molar ratio of from 2.6:1 to 1.0:1. When the burning coal reaches the area of treatment, the treated area is burned away, allowing for the passage of air through the opening created during smoking of the cigarette. The mixture of potassium chlorate and sodium chlorate provides for a more stable treatment, particularly when the cigarettes having the thus treated wrapper are stored under conditions of high humidity.
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公开(公告)号:US3802441A
公开(公告)日:1974-04-09
申请号:US22074372
申请日:1972-01-26
发明人: HAMMERSMITH J
CPC分类号: B01J20/28033 , A24D3/16 , B01J20/00 , B01J20/28023
摘要: A cigarette or other tobacco smoke filter is disclosed which has a filamentary or fibrous cellulose acetate support carrying a stabilized mixture of zinc oxide and an alkali carbonate salt. The zinc oxide and the carbonate salt are dispersed in a plasticizer to form the stabilized mixture by a milling operation.
摘要翻译: 公开了一种卷烟或其它烟草烟雾过滤器,其具有承载氧化锌和碱金属碳酸盐的稳定化混合物的丝状或纤维状乙酸纤维素载体。 通过研磨操作将氧化锌和碳酸盐分散在增塑剂中以形成稳定的混合物。
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公开(公告)号:US3800808A
公开(公告)日:1974-04-02
申请号:US3800808D
申请日:1971-11-26
发明人: REYNOLDS M , HAMMERSMITH J
CPC分类号: A24D3/10
摘要: An improved tobacco smoke filter is provided for cigarettes and the like formed of a bed or rod of shreds of a porous cellulose ester material having a low packing density and an increased surface area which is readily accessible to the smoke aerosol for deposition of smoke particles. The filter draw resistance comprises a pressure drop at or below 2.5 inches of water. The cellulose ester material in shred form has a surface area of from about 0.6 to 3.0 square meters per gram, a mean pore diameter of from about 2 to 20 microns, and a porosity of between 65 percent and 90 percent. The width and thickness of the shreds should be between about 0.25-2.0 mm and 0.025-0.25 mm, respectively. The shreds are formed by casting a dope of the cellulose ester dissolved in solvent and plasticizer in which starch and saline solution are present. The cast sheet is washed to remove the salt and enzymatically treated to remove the starch and thus form the porous structure.
摘要翻译: 提供了一种改进的烟草烟雾过滤器,用于由具有低填充密度和增加的表面积的多孔纤维素酯材料的细丝床或棒形成的香烟等,其易于烟雾气溶胶吸附以用于沉积烟雾颗粒。 过滤器拉伸阻力包括在水平或2.5英寸以下的压降。 切碎形式的纤维素酯材料的表面积为约0.6至3.0平方米/克,平均孔径为约2至20微米,孔隙率为65%至90%。 碎片的宽度和厚度应分别在约0.25-2.0mm和0.025-0.25mm之间。 通过浇铸溶解在溶剂中的纤维素酯的涂料和存在淀粉和盐溶液的增塑剂形成碎片。 洗涤流延片以除去盐并进行酶处理以除去淀粉,从而形成多孔结构。
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