CN1681406A - 香烟过滤嘴 - Google Patents
香烟过滤嘴 Download PDFInfo
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- CN1681406A CN1681406A CN03822154.3A CN03822154A CN1681406A CN 1681406 A CN1681406 A CN 1681406A CN 03822154 A CN03822154 A CN 03822154A CN 1681406 A CN1681406 A CN 1681406A
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- sodium
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- filter
- humidizer
- phosphate
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 59
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 40
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000126 substance Substances 0.000 claims abstract description 23
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 20
- 235000011187 glycerol Nutrition 0.000 claims abstract description 11
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001540 sodium lactate Substances 0.000 claims abstract description 9
- 229940005581 sodium lactate Drugs 0.000 claims abstract description 9
- 235000011088 sodium lactate Nutrition 0.000 claims abstract description 9
- 229960005150 glycerol Drugs 0.000 claims abstract description 6
- JXKPEJDQGNYQSM-UHFFFAOYSA-M sodium propionate Chemical compound [Na+].CCC([O-])=O JXKPEJDQGNYQSM-UHFFFAOYSA-M 0.000 claims abstract description 6
- 239000004324 sodium propionate Substances 0.000 claims abstract description 6
- 235000010334 sodium propionate Nutrition 0.000 claims abstract description 6
- 229960003212 sodium propionate Drugs 0.000 claims abstract description 6
- 150000007529 inorganic bases Chemical class 0.000 claims description 19
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 8
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 8
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 8
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 8
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 5
- 229940072033 potash Drugs 0.000 claims description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 5
- 235000015320 potassium carbonate Nutrition 0.000 claims description 5
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 4
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 4
- 229910000397 disodium phosphate Inorganic materials 0.000 claims description 4
- 235000019800 disodium phosphate Nutrition 0.000 claims description 4
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 4
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical group [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 3
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 3
- 235000011009 potassium phosphates Nutrition 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- 235000011008 sodium phosphates Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000003020 moisturizing effect Effects 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 48
- 238000001914 filtration Methods 0.000 description 21
- 239000000779 smoke Substances 0.000 description 19
- 150000001299 aldehydes Chemical class 0.000 description 16
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 12
- 241000208125 Nicotiana Species 0.000 description 12
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000006096 absorbing agent Substances 0.000 description 5
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- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004128 high performance liquid chromatography Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910021642 ultra pure water Inorganic materials 0.000 description 3
- 239000012498 ultrapure water Substances 0.000 description 3
- STNJBCKSHOAVAJ-UHFFFAOYSA-N Methacrolein Chemical compound CC(=C)C=O STNJBCKSHOAVAJ-UHFFFAOYSA-N 0.000 description 2
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
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- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
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- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- 235000015424 sodium Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940083542 sodium Drugs 0.000 description 1
- GQTHJBOWLPZUOI-FJXQXJEOSA-M sodium D-pantothenate Chemical compound [Na+].OCC(C)(C)[C@@H](O)C(=O)NCCC([O-])=O GQTHJBOWLPZUOI-FJXQXJEOSA-M 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Fats And Perfumes (AREA)
- Medicinal Preparation (AREA)
- Paper (AREA)
Abstract
一种具有过滤介质的香烟过滤嘴，该过滤介质含有诸如碳酸钠的无机碱性物质和选自甘油、丙酸钠和乳酸钠的增湿剂。
Description
技术领域
本发明涉及能够降低香烟的主流烟中含有的醛类的数量的香烟过滤嘴(filter)。
背景技术
吸烟者吸烟时喷出的主流烟中含有各种化学成分。很难利用普通的香烟过滤嘴吸附、并除去这些化学成分中的以甲醛为代表的醛类。因此，人们希望从香烟的主流烟中除去醛类。
在过去，为了吸附、并除去香烟的主流烟中含有的醛类，人们尝试在香烟过滤嘴中使用各种添加剂。然而，使用常规的添加剂会产生损害烟草味道的问题。
发明内容
本发明的目的是提供一种香烟过滤嘴，该香烟过滤嘴能够有效地降低香烟主流烟中的醛类的数量，同时抑制诸如烟草味道劣化那样的有害影响。
根据本发明的一个方面的香烟过滤嘴，其特征在于：包括过滤介质，该过滤介质含有选自碳酸盐、磷酸盐的无机碱性物质(basic substance)和增湿剂。
本发明使用的碳酸盐选自碳酸钠、碳酸钾、碳酸氢钠、碳酸氢钾和碳酸氢铵。本发明使用的磷酸盐选自磷酸钠、磷酸钾、磷酸氢二钠、磷酸氢二钾、磷酸二氢钠、磷酸二氢钾和磷酸二氢铵。本发明使用的增湿剂选自甘油、丙酸钠和乳酸钠。
在本发明的香烟过滤嘴中，优选含有3.5mg或者3.5mg以上的无机碱性物质。
在本发明的香烟过滤嘴中，优选使无机碱性物质与增湿剂的比率为1∶1～1∶2。
附图的简要说明
图1图式表示本发明实施例中测定香烟主流烟中所含甲醛的装置构造；
图2表示本发明实施例中使用的香烟的构造剖视图；
图3表示根据添加至香烟过滤嘴的无机碱性物质的种类而释放甲醛的图表；
图4表示与碳酸钠一起添加至香烟过滤嘴的水量与释放甲醛的关系图；
图5表示与碳酸钠一起添加至香烟过滤嘴的甘油量与增加的水量的关系图；
图6表示根据与碳酸钠一起添加至香烟过滤嘴的增湿剂的种类而释放甲醛的图表。
图7表示添加至香烟过滤嘴的碳酸钠和甘油的比率与释放甲醛的关系图。
最佳实施方式
鉴于试图降低香烟主流烟中含有的醛类的各种观点，本发明的发明人开展了广泛的研究，结果发现，选自碳酸盐和磷酸盐的无机碱性物质是有效的添加剂。在本发明中使用的碳酸盐选自例如碳酸钠、碳酸钾、碳酸氢钠、碳酸氢钾和碳酸氢铵。在本发明中使用的磷酸盐选自磷酸钠、磷酸钾、磷酸氢二钠、磷酸氢二钾、磷酸二氢钠、磷酸二氢钾和磷酸二氢铵。
本发明的发明人还发现：如果与增湿剂结合使用无机碱性物质，将更有效地除去香烟主流烟中含有的醛类。应用于本发明的增湿剂选自甘油、丙酸钠和乳酸钠。
可以使用例如醋酸酯丝束(acetate tow)、纸过滤材料或者纸浆无纺织物的常规过滤介质作为无机碱性物质和增湿剂的载体(过滤嘴原材料)。
据信，在本发明的香烟过滤嘴中，香烟主流烟中的醛类是通过如下所述机理而被降低的。首先，香烟主流烟中含有的醛类被溶解于过滤嘴携带的增湿剂保留(holded)的水中。接着，使溶解于水中的醛类与过滤嘴携带的无机碱性物质反应，从而被收集(trap)在过滤嘴中。值得注意的是：增湿剂起到稳定地保留用于溶解醛类的水的作用。
在本发明的香烟过滤嘴中，无机碱性物质的含量应当为3.5mg或者3.5mg以上，这是由于如果低于3.5mg，就难以获得足够的降低醛类的效果。
而且，在本发明的香烟过滤嘴中，无机碱性物质与增湿剂的比率被规定为1∶1～1∶2。如果上述比率没有在上述范围内，就难以获得足够的降低醛类的效果。
为了使过滤介质含有无机碱性物质和增湿剂，可以应用诸如喷雾、浸渍和滚筒传递(roller transfer)等方法。
除了无机碱性物质和增湿剂，过滤介质还可以含有活性炭。
过滤嘴的构型可以为平面式、双重(dual)式、具有三或三个以上节的多节式或者填料-空隙-填料式。可以在过滤嘴的一部分或者所有节中含有无机碱性物质和增湿剂。
本发明的香烟过滤嘴可以是作为口末端组件而与香烟的烟草部位连接的过滤嘴或者是香烟柄形式的过滤嘴。
实施例：
在以下实施例中应用的测量香烟主流烟中含有的醛类的方法中，利用高效液相色谱(HPLC)测定2，4-二硝基苯肼(DNPH)(收集物质)的衍生物。能够通过这种方法同时测定的物质是下列8种成分：甲醛、乙醛、丙酮、丙烯醛、丙醛、巴豆醛、甲乙酮和正丁醛。在以下实施例中，所有描述是针对待测的醛类(羰基化合物)中的甲醛。
首先，通过如下过程制备收集溶液：把9.51g2，4-二硝基苯肼(DNPH)溶于1L乙腈中，然后，加入5.6ml的60％高氯酸，随后利用超纯水把所得溶液稀释至2L。
参考图1对测量装置的结构进行描述。如图1所示，在德雷克塞尔式吸收器(Drechset type trap)11中放入DNPH收集溶液12。德雷克塞尔式吸收器11具有250mL的内容积，DNPH收集溶液的体积为100mL，死体积为150mL。把德雷克塞尔式吸收器11放入冰水浴13中进行冷却。把顶端装有香烟1的玻璃管14的较低端浸入德雷可塞尔吸收器11内的收集溶液12中。此外，安装玻璃管15和桥连垫块(Cambridge pad)16，从而连通到德雷克塞尔吸收器11的死体积，并把自动吸烟器17与桥连垫块16相连。
把香烟1连接至玻璃管14，使香烟1在ISO标准规定的标准吸烟条件下自动吸烟。更具体地，以58秒的间隔对1枝香烟重复进行在2秒的单一吸烟中吸入35mL烟的操作。当主流烟冒泡时，8种羰基化合物成分被转化成DNPH的衍生物。使用2支香烟进行测定。
利用HPLC对如此生成的衍生物进行测量。首先，过滤收集溶液，然后用Trizma Base液稀释收集溶液(收集溶液4mL：Trizma Base液6mL)。然后，通过HPLC对该稀释液进行测定。HPLC的测定条件如下。
柱：HP LiChrospher 100RP-18(5μ)250×4mm
保护柱：HP LiChrospher 100RP-18(5μ)4×mm
柱温：30℃
检测波长：DAD356nm
注入量：20μL
流动相：3相梯度(A液：含有30％乙腈、10％四氢呋喃以及1％IPA的超纯水溶液；B液：含有65％乙腈、1％四氢呋喃以及1％IPA的超纯水溶液；C液：100％乙腈)。
参考附图2显示的剖面图，对作为试样使用的香烟的构造进行说明。如图2所示，该香烟具有烟草部分20和过滤嘴部分30，在烟草部分20中烟丝21被卷纸22包裹，在过滤嘴部分30中通过包装纸(forming paper)32包裹过滤嘴31。利用切尖纸(tipping paper)把过滤嘴部分30连接至烟草部分20。例如，可以使用醋酸纤维素的丝束作为过滤嘴材料。
在测试利用含有加入其中的无机碱性物质和增湿剂的试验过滤嘴制备的香烟中，通过从6mg焦油量的市售香烟切去醋酸酯过滤嘴而取出烟草部分，并将该烟草部分连接至试验过滤嘴，从而制得试样。使用原子化器向试验过滤嘴添加无机碱性物质和增湿剂。
试验1：
制备25mm长的醋酸酯过滤嘴作为基本过滤嘴。使基本过滤嘴含有3.5mg添加剂而制备试验过滤嘴。该添加剂，例如无机碱性物质，选自碳酸氢钾(KHCO3)、碳酸氢钠(NaHCO3)、碳酸钾(K2CO3)、碳酸钠(Na2CO3)、碳酸氢铵(NH4HCO3)、磷酸二氢钠(NaH2PO4)、磷酸二氢铵(NH4H2PO4)、磷酸氢二钠(Na2HPO4)、磷酸氢二钾(K2HPO4)、磷酸钾(K3PO4)和磷酸钠(Na3PO4)。
把每个过滤嘴连接至上述烟草部位而制备试样香烟，并通过上述测量方法测定在每根香烟的主流烟中的甲醛的释放量(μg/根)。图3为显示结果的图表。图3清楚地证实：由含有任何如图3所示的无机碱性化合物的过滤嘴释放的甲醛量低于由基本过滤嘴释放的甲醛量。尤其，发现碳酸钠、碳酸钾和碳酸氢铵很有效。
同时，发现：为了降低甲醛的释放量，在过滤嘴中无机碱性化合物的量优选为3.5mg或3.5mg以上。
试验2：
使基本过滤嘴含有3.5mg碳酸钠和不同数量的水。把每个含有不同含量的水的过滤嘴连接至上述烟草部位而制备试样过滤嘴，并通过上述测量方法测定在每根香烟的主流烟中的甲醛的释放量(μg/根)。图4为显示结果的图表。由图4可以清楚的了解：当过滤嘴含有3.5mg碳酸钠的情况下，如果过滤嘴的水含量为5mg或5mg以上，能够有效地降低主流烟中的甲醛量。
试验3：
为了检验过滤嘴中水的增加量，使基本过滤嘴含有碳酸钠和作为增湿剂的甘油。把碳酸钠的含量设定为3.5mg、7.0mg或10.5mg。把甘油的含量设定为18mg或者52mg。图5为显示结果的图表。图5清楚地证实：过滤嘴保留的水量随着增湿剂，如甘油量的增加而增加。
试验4：
通过使基本过滤嘴只含有3.5mg碳酸钠而制备不含增湿剂的作为参考的试验过滤嘴。并使基本过滤嘴含有3.5mg碳酸钠和增湿剂而制备试验过滤嘴。所用增试剂选自甘油、木糖醇、泛酸钠、PCA钠、乳酸钠、丙酸钠、DL-苹果酸钠、D-甘露糖和氯化钙。把每个试验过滤嘴连接至上述烟草部位而制备试样香烟，并通过上述测量方法测定在每根香烟的主流烟中的甲醛的释放量(μg/根)。图6为显示结果的图表。由图6可以清楚地知道：与只含有碳酸钠的基本过滤嘴的情况相比，使用甘油、乳酸钠和丙酸钠作为增湿剂，能够有效地降低甲醛的释放量。鉴于过滤嘴的制造过程，这些增湿剂也是很合适的。
试验5：
制备各种试验过滤嘴，其中基本过滤嘴含有3.5mL碳酸钠和不同数量的乳酸钠作为增湿剂。将乳酸钠与碳酸钠的比例设定为1∶1、1∶2或1∶3。
把每个试验过滤嘴连接至上述香烟部位而制备试样香烟，并通过上述测量方法测定在每根香烟的主流烟中的甲醛的释放量(μg/根)。图7为显示结果的图表。图7证实：通过使基本过滤嘴含有的碳酸钠和乳酸钠的比率为1∶1或者1∶2，能够有效地降低主流烟中甲醛的释放量。
工业实用性
本发明的香烟过滤嘴能够有效地降低香烟主流烟中含有的醛类的数量。
Claims (6)
1.一种香烟过滤嘴，其特征在于：包括含有无机碱性物质和增湿剂的过滤介质。
2.如权利要求1所述的香烟过滤嘴，其特征在于：碳酸盐选自碳酸钠、碳酸钾、碳酸氢钠、碳酸氢钾和碳酸氢铵。
3.如权利要求1所述的香烟过滤嘴，其特征在于：磷酸盐选自磷酸钠、磷酸钾、磷酸氢二钠、磷酸氢二钾、磷酸二氢钠、磷酸二氢钾和磷酸二氢铵。
4.如权利要求1所述的香烟过滤嘴，其特征在于：增湿剂选自甘油、丙酸钠和乳酸钠。
5.如权利要求1所述的香烟过滤嘴，其特征在于：含有3.5mg或者3.5mg以上的无机碱性物质。
6.如权利要求1所述的香烟过滤嘴，其特征在于：无机碱性物质与增湿剂的比率为1∶1～1∶2。
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| CN102488322A (zh) * | 2011-11-18 | 2012-06-13 | 安徽中烟工业有限责任公司 | 一种降低造纸法烟草薄片有害成分释放量的方法 |
| CN103082411A (zh) * | 2013-02-27 | 2013-05-08 | 云南烟草科学研究院 | 一种能降低烟气烟碱截留率的嘴棒 |
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| US8173219B2 (en) * | 2006-06-09 | 2012-05-08 | Georgia-Pacific Chemicals Llc | Porous fiberglass materials having reduced formaldehyde emissions |
| US20080233334A1 (en) * | 2007-03-21 | 2008-09-25 | Georgia-Pacific Chemicals Llc | Fibrous products having reduced formaldehyde emissions |
| US20070287018A1 (en) * | 2006-06-09 | 2007-12-13 | Georgia-Pacific Resins, Inc. | Fibrous mats having reduced formaldehyde emissions |
| US20080233333A1 (en) * | 2007-03-21 | 2008-09-25 | Georgia-Pacific Chemicals Llc | Fibrous products having reduced formaldehyde emissions |
| US8043383B2 (en) | 2006-06-30 | 2011-10-25 | Georgia-Pacific Chemicals Llc | Reducing formaldehyde emissions |
| ITVA20060056A1 (it) * | 2006-09-06 | 2008-03-07 | Giuseppe Elia | Filtro per togliere le sostanze nocive dal fumo del tabacco |
| JP5351573B2 (ja) * | 2009-03-18 | 2013-11-27 | 株式会社ダイセル | たばこフィルタ素材およびそれを用いたたばこフィルタ。 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102488322A (zh) * | 2011-11-18 | 2012-06-13 | 安徽中烟工业有限责任公司 | 一种降低造纸法烟草薄片有害成分释放量的方法 |
| CN103082411A (zh) * | 2013-02-27 | 2013-05-08 | 云南烟草科学研究院 | 一种能降低烟气烟碱截留率的嘴棒 |
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| HK1079058A1 (en) | 2006-03-31 |
| ATE549947T1 (de) | 2012-04-15 |
| CN100459894C (zh) | 2009-02-11 |
| KR100641727B1 (ko) | 2006-11-10 |
| CA2499649C (en) | 2008-02-12 |
| KR20050057366A (ko) | 2005-06-16 |
| EP1541044B1 (en) | 2012-03-21 |
| US20050161054A1 (en) | 2005-07-28 |
| AU2003264422A1 (en) | 2004-04-08 |
| JPWO2004026054A1 (ja) | 2006-01-12 |
| RU2005111546A (ru) | 2005-10-10 |
| JP4224460B2 (ja) | 2009-02-12 |
| MY135474A (en) | 2008-04-30 |
| UA78860C2 (en) | 2007-04-25 |
| WO2004026054A1 (ja) | 2004-04-01 |
| EP1541044A1 (en) | 2005-06-15 |
| CA2499649A1 (en) | 2004-04-01 |
| RU2292824C2 (ru) | 2007-02-10 |
| EP1541044A4 (en) | 2005-11-16 |
| ES2380190T3 (es) | 2012-05-09 |
| TW200407087A (en) | 2004-05-16 |
| DK1541044T3 (da) | 2012-05-14 |
| PT1541044E (pt) | 2012-05-11 |
| US7487782B2 (en) | 2009-02-10 |
| TWI233783B (en) | 2005-06-11 |
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