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具有减少点燃倾向特性的冒烟物品、包装纸及包装纸生产方法

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CN1306886C
CN1306886C CN 03802006 CN03802006A CN1306886C CN 1306886 C CN1306886 C CN 1306886C CN 03802006 CN03802006 CN 03802006 CN 03802006 A CN03802006 A CN 03802006A CN 1306886 C CN1306886 C CN 1306886C
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CN 03802006
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CN1612700A (zh )
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托马斯·A·克拉克
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施韦特-莫迪国际公司
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00Cigars; Cigarettes
    • A24D1/02Cigars; Cigarettes with special covers
    • A24D1/025Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/005Treatment of cigarette paper
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/25Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/258Alkali metal or alkaline earth metal or compound thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31971Of carbohydrate
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31971Of carbohydrate
    • Y10T428/31975Of cellulosic next to another carbohydrate

Abstract

生产被组合在冒烟物品上时具有减少点燃倾向特性的包装纸的方法。包装纸(14)用成膜组成成分处理,在包装纸(14)上形成处理过的不连续区域(18)。该处理过的区域(18)有预定范围的渗透性,可足够减小包装纸(14)制的冒烟物品(10)的点燃倾向。按照本发明,成膜组成成分包括成膜材料。成膜材料具有比较低的粘度。这样,成膜组成成分可有比较高的固体含量和仍可用普通方法,如照相凹版印刷加到包装纸上。

Description

具有减少点燃倾向特性的 冒烟物品、包装纸及包装纸生产方法

技术领域

本发明涉及具有减少点燃倾向特性的冒烟物品。

背景技术

目前烟草行业关注具有减少了冒烟物品的点燃倾向或冒烟物品点燃与其接触的表面的倾向的包装纸的香烟的生产。经常看见由于点燃的香烟与易燃材料接触而引起火灾的报道。烟草行业对减少香烟或其它冒烟物品点燃与其接触的家具、被褥等表面和所使用的材料的倾向非常感兴趣。

因而,所希望的冒烟物品(特别是香烟)的特性是,一旦在可自由燃烧状态下其落在或留在易燃材料上时,能够自己熄灭。

长期以来,烟草行业已经认识到,香烟包装纸对香烟的发烟燃烧特性具有显著的影响。在此方面,进行了各种尝试,从而改变或修改香烟包装纸,以便获得所希望的香烟自己熄灭的倾向,换句话说,减少香烟的点燃倾向。

现有技术介绍了将成膜溶液(film-forming solution)应用在香烟包装纸上,以便减少纸张渗透性并控制燃烧速度。已经显示,当这些材料沿香烟长度被应用在不连续的区域内,香烟显示减少点燃基片的倾向、自己熄灭的倾向,并具有更高的喷烟数量。

授予Peterson的美国专利US5,878,753和授予Hotaling等人的美国专利US5,820,098被结合在本发明作为参考,上述专利介绍用成膜形水溶液对冒烟物品包装纸进行处理,以便减少渗透性。授予Peterson的美国专利US5,878,754被结合在本发明作为参考,该专利介绍用溶剂可溶聚合物被溶解在溶液内的非水溶液对冒烟物品包装纸进行处理,以便减少渗透性。

虽然,本领域已经进行了一些改进,仍然需要一种改进的生产具有减少点燃倾向的香烟包装纸的方法。具体地说,需要这样一种改进的方法,也就是以不连续区域将成膜溶液加到包装纸上,以便将包装纸的渗透性减少到所希望的范围,特别是在包装纸初始具有高多孔性时。

发明内容

本发明涉及一种具有减少点燃倾向特性的冒烟物品,具有减少点燃倾向的冒烟物品的包装纸以及一种制造所述包装纸的方法。例如在一个实施例中,所述方法包括提供由纸幅制造的包装纸的步骤。包装纸也可以包括重量占10~40%的诸如碳酸钙的填料。

将成膜组成成分施加到包装纸上的特定部位上。多层成膜组成成分在包装纸上形成处理过的不连续区域,处理过的区域由未处理区域分开。处理过的区域具有足以减少点燃倾向的渗透性。例如,随着炭燃烧并进入处理后区域,通过减少到达冒烟物品的阴燃炭的氧气数量,处理过区域可以减少点燃倾向。

根据本发明,成膜组成成分包含成膜材料。成膜材料具有相对较低粘度,其分子量通常较低。通过使用具有相对较低粘度的成膜材料,成膜组成成分可以具有更高的固体含量,具有在诸如照相凹版印刷方法中所使用的普通技术中可以使用的溶液粘度。

例如在25℃下,当以重量计算水溶液内成膜材料的含量是3%时,包含在成膜组成成分内的成膜材料的粘度小于500cP。具体地说,在上述条件下,成膜材料的粘度可以小于250cP,在上述条件下,成膜材料的粘度可以小于100cP,在一个实施例中,在上述条件下,粘度可以是20~60cP。

成膜组成成分的固体含量至少可以是6%重量以上,更具体地说,可以是10~20重量%。例如成膜材料可以是诸如海藻酸钠的藻酸盐。然而应该理解是,也可以使用其它不同的成膜材料。本发明可以使用的其它不同的成膜材料是瓜尔胶、果胶、聚乙烯醇、纤维素衍生物、淀粉、淀粉衍生物,以及上述材料的混合物。

根据组成成分被施加到包装纸上的方式,成膜组成成分的粘度可以变化。然而对于多数情况来说,在25℃下,成膜组成成分的粘度至少是250cP,具体地说至少为500cP,更具体地说至少为800cP。在一个实施例中,所述粘度至少为1000cP或更大。所述组成成分的pH值小于8.0,例如小于7.5。例如所述组成成分的pH值可以是4~7.5。在一个实施例中,在被施加到包装纸上时,可以对成膜组成成分进行加热,以便降低所述组成成份的粘度。

可以使用不同方法将成膜组成成分施加到包装纸上。例如,使用可弯曲胶版的印刷方法、直接照相凹版印刷和偏置照相凹版印刷,可以将成膜组成成分印刷到纸张上。

在一个实施例中,由成膜组成成分形成的不连续区域是一种沿冒烟物品纵向分布的带形。所述带的宽度大于3毫米,例如为4~10毫米,所述带以大约5~50毫米的间距彼此间隔分布,所述间距最好是10~40毫米。

被施加到包装纸上的成膜组成成分的数量取决于具体的应用和不同因素。例如在处理过区域,被施加到包装纸上的成膜组成成分的重量与纸张重量之比为1~30%,最好是2~20%。

一旦被施加到包装纸上,处理后区域可以具有小于40考斯特(Coresta)单位的渗透性,最好是5~25考斯特。纸张的初始渗透性可以是20~90考斯特或更大。

下文详细介绍本发明的其它特征和方面。

附图说明

通过下文结合附图对本发明最佳实施模式所进行的介绍,本领域技术人员可以完全理解本发明,附图中:图1是一个符合本发明的冒烟物品的透视图;图2是一个图1所示冒烟物品的分解视图;图3是一个处理符合本发明的包装纸的系统。

在附图和说明书中重复出现的附图标记表示本发明相同的特征或元件。

具体实施方式

下文通过一个或多个示例详细介绍本发明的实施例。每个示例用于解释本发明,但是并不限制本发明。事实上,对本领域技术人员来说,在不脱离本发明的实质精神范围内,可以进行各种改进。例如一个实施例所示或所述的特征可以被用于另一个实施例中,从而形成其它实施例。在不脱离本发明的实质精神范围内,本发明包括上述这些改进和变化。

为了解释本发明,将结合香烟介绍本发明的实施例和原理。然而,香烟仅用于解释本发明,并不意味着本发明仅适用于香烟。冒烟物品的任何方式都在本发明的实质精神范围内。

本发明涉及一种具有改进的点燃倾向控制特性的冒烟物品和冒烟物品的包装纸。“点燃倾向”是指如果点燃的香烟落在或留在易燃基片上时冒烟物品或香烟点燃该易燃基片的倾向。NIST(国家标准和技术协会)已经建立了香烟的点燃倾向测试,通常被称作“模型点燃测试”,该测试包括将发烟燃烧香烟放置在易燃测试织物上,并记录该香烟点燃测试织物、燃烧所述测试织物超过该织物的正常烧焦线、整根香烟燃尽而没有点燃织物或在点燃该织物或整根香烟燃尽之前自熄灭的倾向。

另一种测试被称作“香烟熄灭测试”,在香烟熄灭测试中,点燃的香烟被放置在一层或多层滤纸上。如果香烟自己熄灭,该香烟通过测试,然而,如果香烟在滤纸上完全燃尽,则该香烟没有通过测试。本发明所制造的冒烟物品被设计成通过一种或所有测试。

根据本发明,通过在不连续区域把成膜组成成份加到包装纸,制造出具有下降点燃倾向的冒烟物品。所述成膜组成成份包括成膜材料。根据本发明,使用相对低粘性的成膜材料,其允许该组成成份包含更高的固体含量,通过诸如印刷的普通技术仍可以被应用在包装纸上。通过使用更高固体含量低粘性材料,本发明人已经发现不包含裂纹或其它缺陷的更连续的薄膜被形成。最终已经发现,与许多普通配方相比,根据本发明所制造的成膜组成成份更适用于减少包装纸的渗透性。

可以相信本发明的一般原理可以与任何适合的成膜材料结合。例如根据本发明可以使用的成膜材料包括藻朊酸盐、瓜尔胶、果胶、聚乙烯醇、诸如乙基纤维素、甲基纤维素和羧甲基纤维素之类的纤维素衍生物、淀粉、淀粉衍生物等。

下文将结合使用包含藻朊酸盐的成膜组成成份详细介绍符合本发明的方法和所制造的产品。然而,应该理解的是,围绕使用藻酸盐的介绍仅是用于介绍目的,许多其它不同类型的成膜材料可以被结合到本方法中。

通常,藻酸盐是一种酸式多醣或树胶的衍生物,以褐藻纲褐海藻内的不能溶解的混合钙盐、钠盐、钾盐和镁盐的形式出现。通常说,这些衍生物是由不同组成成份的D-甘露糖醛酸和L-古洛糖酸(guluronic)组成的高分子量多醣的钙盐、钠盐、钾盐和/或镁盐。有代表性的藻酸的盐或衍生物包括藻酸铵、藻酸钾、海藻酸钠、丙撑二醇藻蛋白酸盐和/或这些物质的混合物。

过去,一直使用藻酸盐在香烟包装纸上形成低渗透性区域,以便减少结合了包装纸的冒烟物品的点燃倾向。然而,用于形成被处理区域的藻酸盐溶液通常包含相对较低的藻酸盐固体含量,然而如上所述,本发明致力于使用较高固体含量的低粘性藻酸盐。

例如,当在25℃下被包含在水溶液内,重量含量为3%时,符合本发明的可以被使用的藻酸盐的粘度小于500cP。更具体地说,在上述条件下,符合本发明的可以被使用的藻酸盐的粘度小于250cP,最好小于100cP,在一个实施例中,粘度为20~60cP。此时,采用Brookfield LVF粘度计确定粘度。根据本发明可以使用的藻酸盐包括商品名为KELGINRL、MANUCOL LD和MANUCOLLB,这些均可以在ISP公司买到。

在上述低粘度级别,藻酸盐组成成份可以被形成为具有更高的固体含量,但是仍在很低的溶液粘度下,从而允许使用普通技术将所述组成成份加在包装纸上。例如以重量计算,符合本发明的藻酸盐溶液的固体含量可以大于6%,最好大于10%,更具体地说,在10%~20%。

在上述固体含量下,符合本发明的藻酸盐组成成份的溶液粘度大于250cP、最好大于500cP,最佳大于800cP。在一个实施例中,在25℃下,粘度大于1000cP。通常根据将该组成成份加到纸张上的方式,藻酸盐成膜组成成份的溶液粘度可以被调节。例如,根据所述组成成份是否被喷射到纸张上或印刷到纸张上,调整该组成成份的溶液粘度。

通常符合本发明的藻酸盐组成成份包括藻酸盐和水。虽然不是必需的,其它成份也可以被包含在该组成成份内。例如在一个实施例中,填充物可以被包含在该组成成份内。例如,填充物可以是碳酸钙、氯化钙、乳酸钙、葡萄糖酸钙等。除了钙成份之外,也可以包含其它金属化合物,例如镁化合物。在一个实施例中,填充物内的金属阳离子可以部分与藻酸盐交联。

一旦藻酸盐组成成份或其它成膜组成成份被配制,将该组成成分成不连续区域加到包装纸上。将该组成成分加到包装纸上的方式可以改变。例如可以将该组成成分喷射、刷涂或印刷在包装纸上。为了形成被处理的区域,该组成成分可以被单道次操作或多道次操作使用。例如,该组成成分可以在连续步骤中被加在包装纸上,以便在纸张上形成点燃倾向减少的区域。通常在多道次操作期间,通过在大约2~8道次期间施加该组成成分,可以形成被处理区域。

在每次应用该组成成分期间将该组成成分施加到包装纸上的数量也可以改变。例如在一些施加期间,组成成分首先以较高数量被加在包装纸上。被施加到纸张上的组成成分的数量逐步下降。然而在其它施加中,首先将组成成分较少地施加在包装纸上,初始阶段后,然后将较大数量的组成成分施加到纸张上。通过改变在每个工序中被施加到包装纸上的数量,具有减少点燃倾向的区域可以具可控性能地在包装纸上形成。

已经发现,符合本发明的具有相对较高固体成份的成膜组成成分较好地适合于在香烟包装纸上形成减少点燃倾向的区域。是否使用单道次操作或多道次操作,都已经发现,该组成成分非常有效地减少包装纸上被处理区域的渗透性,降低了结合了该包装纸的冒烟物品点燃邻近表面的能力。特别有利地,符合本发明的成膜组成成分适合于停止(shutting down)初始具有较高渗透性的包装纸的点燃倾向特性的渗透性,例如至少具有60考斯特(Coresta)单位渗透性的包装纸。

为了有助于描述和介绍本发明。结合图1和2介绍本发明一个实施例。具有改进的点燃倾向特性的冒烟物品(香烟)10包括在包装纸14内的烟柱(tobacco column)12。物品10可以包括过滤嘴(filter)26。包装纸14可以是市场上可以购买到的任何香烟包装纸。

通常,所述包装纸可以由诸如亚麻、软木或硬木得到的纤维素纤维制造,为了根据希望改变纸张的特性,可以使用不同的纤维素纤维混合物。也可以改变被精制的纤维含量。

对于大多数应用,包装纸将包含填料。例如所述填料可以是碳酸钙、氧化镁或任何其它适合材料。所有被添加在包装纸上的填充剂用量可以大约在10%~40%重量之间。

符合本发明的冒烟物品的包装纸的渗透性可以被形成为大约为10~200考斯特单位。在一些应用中,渗透性可以在15~55考斯特单位。然而在本发明一个实施例中,包装纸的初始渗透性相当高。例如,在一个实施例中,包装纸的渗透性可以是60~110考斯特单位,特别是60~90考斯特单位。

香烟包装纸的基本重量大约是18~60gsm,更能具体地说,大约是15~40gsm。符合本发明的包装纸可以在这些范围内的任何一个范围内。

也可以使用燃烧控制添加剂对所述包装纸进行处理,该添加剂也可以被用作灰份调节器。例如,这种燃烧控制添加剂可以包括碱金属盐、醋酸盐、磷酸盐或它们的混合物。优选燃烧控制添加剂是柠檬酸钾和柠檬酸钠的混合物。可以添加0.3%~5%重量的燃烧控制添加剂,最好添加0.3%~2.5%重量的燃烧控制添加剂。

当围绕烟柱12缠绕时,纸幅14确定了外周表面16。用诸如藻酸盐组成成分的符合本发明的成膜组成成分对外周表面16的不连续区域18进行处理。应该理解的是,被处理区域18也可以分布在包装纸14的内表面上。换句话说,包装纸14可以围绕烟柱12缠绕,从而处理过的区域18邻接烟草。

在图1和2所示实施例中,处理过的区域18被划分为周向交叉带24。带24沿香烟10的长度方向彼此纵向间隔。在图2中用阴影表示带24。然而应该理解的是,处理过的区域在图1所示的所形成的香烟上是不可见的。换句话说,吸烟者可能不能从任何外部标志看出包装纸14在不连续区域已经被处理过了。在此方面,处理过的区域18具有与未处理过的区域28基本上相同的光滑和平的结构。

带24的宽度和间距取决于一些诸如包装纸14初始渗透性、烟柱12的密度等的变数。带24最好具有这样的宽度,从而氧气被限制在燃烧炭(burning coal)上足够长度和时间,以便使所述炭熄灭。换句话说,如果带24太窄,在自己熄灭之前,燃烧炭将燃烧通过带24。对于多数应用来说,希望最小带宽为3毫米。例如带宽可以为4~10毫米。

带24之间的间距也取决于一些参数。该间距不应该很大,从而在所述炭烧进处理后区域18之前,香烟燃烧足够长的时间。带24之间的间距也影响燃烧炭的热惯性、或在炭没有自身熄灭之前燃烧通过被处理过的带24的能力。在所测试的香烟中,申请人已经发现,带24之间的适合间距为5~50毫米,优选为10~40毫米。然而应该理解的是,带间距可以是由任何一些参数所确定的数值。对于大多数情况,使用上述间距,冒烟物品可以有1~3个带。

处理过的区域18具有下述范围的渗透性,也就是能够为香烟10提供改善的点燃倾向特性的范围。随着香烟10的炭烧进所述处理过的区域18,由于包装纸14在处理过的区域的渗透性下降,用于炭燃烧的氧气基本上被减少。当与基片接触时,所述氧气的减少导致香烟在处理过的区域18自己熄灭。申请人已经确定,优选渗透性小于40ml/min/cm2(考斯特),最好是为5~25ml/min/cm2。申请人已经发现,随着香烟炭燃烧进所述处理过的区域,该范围数值提供所希望的自己熄灭结果。

除了渗透性之外,也可以用于表示点燃倾向特性的其它测量是燃烧众数指数。事实上与简单地测量纸张的渗透性相比,包装纸的燃烧众数指数可以更准确地表示纸张的燃烧特性。授予Hampl的美国专利US4,739,775介绍了用于确定燃烧众数指数的测试,该专利被结合到本发明作为参考。

为了显示减少的点燃倾向特性,处理过的区域18的燃烧众数指数(“BMI”)通常小于8cm-1,最好是1~5cm-1。例如在一个实施例中,处理过的区域18的燃烧众数指数是1~3cm-1。

被施加到包装纸14的处理过的区域18上的组成成分在所述处理过的区域提供减少的渗透性。

被添加到该纸张上的组成成分数量将取决于不同的参数,包括所使用组成成分的类型和所希望的效果。对于大多数情况来说,当带已经被形成和干燥后,可以被添加到纸张上的所述带区域(banded region)的成膜组成成分是纸张重量的1~30%,优选地为2~20%重量,虽然情况并不总是如此。通常,随着纸张的渗透性增加,被施加到纸张上的组成成分数量将增加。例如当包装纸的渗透性小于30考斯特单位时,可以被添加到纸张上的组成成分数量为1~15%重量。另一方面,当包装纸的渗透性大于60考斯特单位时,可以被添加到纸张上的组成成分数量为8~30%重量。

本发明适合于用于上述冒烟物品的包装纸以及一种用于制造冒烟物品的包装纸的方法。

如上所述,组成成分可以被喷、刷或印刷在包装纸上。通常,任何适合的印刷方法都可以在本发明中使用。申请人已经发现适合的印刷技术包括照相凹版印刷或胶版印刷。在一个实施例中,如图3所示,纸层14从供应辊40上退卷下来,并沿箭头所示方向运动。另一种方案是,可以利用一种或多种纸张制造方法形成纸层14,无需首先被存储在供应辊40上,纸层14被直接输送到加工点50。

如图3所示,在颠倒的S路径,纸张层14通过S形辊布置42的辊隙。从S形辊布置42,纸层14通过照相凹版印刷设备44。照相凹版印刷处理可以是直接印刷处理或间接印刷处理,例如通过使用胶版印刷机。图3显示了间接印刷处理。

照相凹版印刷设备44包含组成成分罐46和刮刀48,刮刀48将组成成分52加到凹板印刷辊54上。

凹板印刷辊54可以被雕刻普通的连续单元图案(cell pattern)(也就是四边形单元图案),所述单元图案设成跨过辊宽度的平行带,在每个带之间是非雕刻区域。每个雕刻单元保持少量的组成成分,所述组成成分以图案形式被转送到橡胶敷料辊56上。纸层14通过橡胶敷料辊56和支承辊58之间的辊隙。所述组成成分从橡胶敷料辊56被转印到纸14的表面上,从而形成被涂料的纸张60。可以控制凹板印刷辊54和支承辊58的速度,使得两者的速度相同或有微量的差别,从而影响组成成分的涂覆。一旦组成成分被加到纸层14上,如果希望,纸层14可以被干燥。

例如如图3所示,离开照相凹版印刷设备44之后,卷筒纸14经过干燥操作62。在干燥操作期间,使用不同的设备和方法,处理过的纸张可以被干燥。例如在一个实施例中,干燥操作62包括向卷筒纸上方通诸如空气的热气的干燥设备。所述空气的温度大约是100~600。在另一个实施例中,干燥设备可以是蒸汽发生器。在被照相凹版印刷设备用一个组成成分处理后,卷筒纸可以与所述蒸汽发生器接触,对所述组成成分进行干燥。

除了用热气或蒸汽发生器对纸张进行干燥之外,在本发明的另一个实施例中,通过使纸张与红外线接触,可以对所述纸张进行干燥。例如,在一个实施例中,纸张可以在红外线加热灯下通过。

在本发明另一个实施例中,在干燥加热期间,卷筒纸14可以简单地被干燥操作62进行空气干燥。

应该理解的是,图3所示工序仅表示一种将组成成分施加到包装纸上的一个实施例。例如,大量印刷站可以被设置在任何位置,从而在多道次处理中施加组成成分。

以上已对本发明作了十分详细的描述,所以阅读和理解了本说明书后,对本领域技术人员来说,本发明的各种改变和修改将变得明显。所以一切如此改动和修正也包括在此发明中,因此它们在权利要求书的保护范围内。

Claims (36)

1.一种具有减少点燃倾向特性的冒烟物品,所述的物品包括:包括可抽烟草的柱;围绕所述可抽烟草的柱的包装纸,所述包装纸包括由成膜组成成分处理过的不连续区域,所述处理过的区域被未处理区域分隔,处理过的区域具有足以减少点燃倾向的渗透性,被施加到包装纸上的成膜组成成份包括被包含在溶液内的一定数量的成膜材料,成膜材料包括藻酸盐,所述溶液内固体含量至少是6%重量,在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于500cP。
2.如权利要求1所述冒烟物品,其特征在于:所述藻酸盐是海藻酸钠。
3.如权利要求1所述冒烟物品,其特征在于:以重量计算,所述溶液中的固体含量至少是10%重量。
4.如权利要求1所述冒烟物品,其特征在于:在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于250cP。
5.如权利要求1所述冒烟物品,其特征在于:在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于100cP。
6.如权利要求1所述冒烟物品,其特征在于:处理过的区域的渗透性小于40考斯特单位。
7.如权利要求1所述冒烟物品,其特征在于:所述成膜材料包括下述材料,瓜尔胶、果胶、聚乙烯醇、纤维素衍生物、淀粉、淀粉衍生物,以及上述材料的混合物。
8.如权利要求1所述冒烟物品,其特征在于:处理过的区域的燃烧众数指数BMI是1~5cm-1。
9.如权利要求1所述冒烟物品,其特征在于:处理过的区域被印刷到包装纸上。
10.如权利要求1所述冒烟物品,其特征在于:包装纸上未处理区域的渗透性大于60考斯特单位。
11.如权利要求1所述冒烟物品,其特征在于:处理过的区域包括多个沿冒烟物品纵向分布的不连续周向带。
12.如权利要求11所述冒烟物品,其特征在于:所述带以5~50毫米的间距彼此间隔,所述带的宽度大于3毫米。
13.如权利要求1所述冒烟物品,其特征在于:处理过的区域还包括柠檬酸盐,所述带上的柠檬酸盐重量占包装纸重量的1~3%重量。
14.一种冒烟物品的包装纸,具有向冒烟物品提供减少的点燃倾向特性,所述的包装纸包括:围绕可以冒烟的填料的纸幅,纸幅包括由成膜组成成分处理过的不连续区域,处理过的区域被未处理区域分开,处理过的区域具有足以减少组合有包装纸的冒烟物品的点燃倾向的渗透性,被施加到包装纸上的成膜组成成分包括被包含在溶液内的成膜材料,成膜材料包括藻酸盐,所述溶液内的固体含量至少为6%重量,在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于500cP。
15.如权利要求14所述包装纸,其特征在于:所述藻酸盐是海藻酸钠。
16.如权利要求14所述包装纸,其特征在于:所述溶液中的固体含量至少是10%重量。
17.如权利要求14所述包装纸,其特征在于:在25℃下,当溶液内成膜材料的含量是3%时,成膜材料的粘度小于250cP。
18.如权利要求14所述包装纸,其特征在于:在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于100cP。
19.如权利要求14所述包装纸,其特征在于:所述成膜材料包括下述材料,瓜尔胶、果胶、聚乙烯醇、纤维素衍生物、淀粉、淀粉衍生物,以及上述材料的混合物。
20.如权利要求14所述包装纸,其特征在于:所述处理过的区域被印刷在所述包装纸上。
21.如权利要求14所述包装纸,其特征在于:包装纸上未处理区域的渗透性大于60考斯特单位。
22.如权利要求14所述包装纸,其特征在于:处理过的区域包括多个沿冒烟物品纵向分布的不连续周向带,所述带的宽度大于3毫米,所述带以5~50毫米的间距彼此间隔。
23.一种用于生产当被组合在冒烟物品上时具有减少点燃倾向特性的包装纸的方法,包括如下步骤:提供由纸幅组成的包装纸;将成膜组成成份施加到所述包装纸的特定位置上,所述成膜组成成分在所述包装纸上形成处理过的不连续区域,处理过的区域被未处理的区域分隔,处理过的不连续区域具有足以减少点燃倾向的渗透性,成膜组成成分包括被包含在溶液内的成膜材料,成膜材料包括藻酸盐,所述溶液内的固体含量至少为6%重量,在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于500cP。
24.如权利要求23所述方法,其特征在于:所述藻酸盐是海藻酸钠。
25.如权利要求23所述方法,其特征在于:溶液中存在成膜材料,使所述溶液中的固体含量至少是15%重量。
26.如权利要求23所述方法,其特征在于:在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于250cP。
27.如权利要求23所述方法,其特征在于:在25℃下,当溶液内成膜材料的含量是3%重量时,成膜材料的粘度小于100cP。
28.如权利要求23所述方法,其特征在于:处理过的区域的渗透性小于40考斯特单位。
29.如权利要求23所述方法,其特征在于:所述成膜材料包括下述材料,瓜尔胶、果胶、聚乙烯醇、纤维素衍生物、淀粉、淀粉衍生物,以及上述材料的混合物。
30.如权利要求23所述方法,其特征在于:处理过的区域的燃烧众数指数BMI是1~5cm-1。
31.如权利要求23所述方法,其特征在于:成膜组成成分被印刷到包装纸上。
32.如权利要求31所述方法,其特征在于:采用多道次操作,将成膜组成成分印刷到包装纸上。
33.如权利要求23所述方法,其特征在于:处理过的区域包括多个沿冒烟物品纵向分布的不连续周向带,所述带的宽度大于3毫米,所述带以4~30毫米的间距彼此间隔。
34.如权利要求23所述方法,其特征在于:使用照相凹版印刷将成膜组成成分印刷到包装纸上。
35.如权利要求23所述方法,其特征在于:所述成膜组成成分被施加到包装纸上,在处理过的不连续区域内,成膜组成成分与包装纸的重量比是30%。
36.一种用于生产当被组合在冒烟物品上时具有减少点燃倾向特性的包装纸的方法,包括如下步骤:提供由纸幅组成的包装纸,所述纸幅包括填料;将成膜组成成份印刷到所述包装纸的特定位置上,从而在所述包装纸上形成处理过的不连续区域,处理过的不连续区域被未处理过的区域分开,处理过的不连续区域具有足以减少冒烟物品的点燃倾向且不导致冒烟物品在自由燃烧状态下自己熄灭的渗透性,成膜组成成分包括包含藻酸盐的水溶液,所述溶液包括藻酸盐的量使得所述溶液内的固体含量至少为8%重量,在25℃下,当水溶液内藻酸盐的含量是3%时,藻酸盐的粘度小于250cP,当与冒烟物品组合时,处理过的区域沿包装纸的长度形成周向带,处理过的区域的渗透性小于30考斯特单位,燃烧众数指数BMI小于5cm-1,被施加到包装纸处理过的区域上的成膜组成成分的重量与包装纸的重量之比为2~20%。
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