技术领域technical field
本申请属于细支卷烟滤棒生产技术领域，具体涉及一种压降稳定性较好的细支滤棒及其应用专利申请。The application belongs to the technical field of slim cigarette filter rod production, and specifically relates to a slim filter rod with better pressure drop stability and a patent application for its application.
背景技术Background technique
近年来，细支卷烟呈现出良好的发展势头，国内卷烟工业企业正在不断推出新的细支卷烟规格，以满足吸烟人群多样化的吸食需求。In recent years, slim cigarettes have shown a good momentum of development, and domestic cigarette industry enterprises are constantly launching new specifications of slim cigarettes to meet the diverse smoking needs of smokers.
细支卷烟并不是物理意义上的简单的将粗支烟变细，其主要原因在于，在将普通粗支烟的圆周进行缩小的同时，细支烟的吸阻、硬度、燃烧落锥以及包灰等都会发生变化，因而传统圆周卷烟的研发思路已经不适合细支烟的发展。Slim cigarettes are not simply thinning thick cigarettes in the physical sense. The main reason is that while shrinking the circumference of ordinary thick cigarettes, the suction resistance, hardness, burning cone and wrapping of slim cigarettes The ash and so on will change, so the research and development ideas of traditional circular cigarettes are no longer suitable for the development of slim cigarettes.
体积短小精悍是细支卷烟的先天优势，但由于直径明显小于普通卷烟，因而吸阻大、影响消费者吸食感受也就成为阻碍细支卷烟发展的共性问题。为此，卷烟工业企业积极探索利用在线滤嘴打孔通风、改变丝束规格、降低滤棒压降、优化烟丝结构等诸多技术手段破解这一技术难题。现有技术思路中，为了降低细支卷烟的滤棒压降及过滤效率，普遍采用“高单旦、低总旦”的醋纤丝束设计，这种设计方式下所制备的滤棒，由于所含丝束根数相对较少，因而放大了丝束本身的质量波动，进而造成了细支滤棒压降稳定性较差。因而极有必要对其进行进一步改进，以切实提高细支滤棒压降的稳定性。Small and compact size is the inherent advantage of slim cigarettes. However, since the diameter is significantly smaller than that of ordinary cigarettes, the large draw resistance and affecting consumers' smoking experience have become common problems hindering the development of slim cigarettes. To this end, cigarette industry enterprises are actively exploring the use of online filter hole ventilation, changing tow specifications, reducing filter rod pressure drop, optimizing tobacco structure and many other technical means to solve this technical problem. In the existing technical thinking, in order to reduce the filter rod pressure drop and filtration efficiency of slim cigarettes, the design of acetate fiber tow with "high single denier and low total denier" is generally adopted. The filter rod prepared in this design method, due to The number of tows contained is relatively small, thus amplifying the quality fluctuation of the tows themselves, which in turn results in poor pressure drop stability of fine filter rods. Therefore, it is extremely necessary to further improve it to effectively improve the stability of the pressure drop of the fine filter rod.
发明内容Contents of the invention
通过对制备滤棒用醋纤丝束截面形状、醋纤丝束旦数等方面的重新设计，本发明目的在于提供一种压降稳定性较好的细支滤棒，从而能够满足细支卷烟的吸食需求。By redesigning the cross-sectional shape and denier of cellulose acetate tow for making filter sticks, the purpose of the present invention is to provide a fine filter stick with better pressure drop stability, so as to meet the requirements of slim cigarettes. smoking needs.
本申请所采取的技术方案详述如下。The technical solution adopted by this application is described in detail as follows.
一种压降稳定性较好的细支滤棒，其醋纤丝束采用非Y型截面形状的醋纤丝束，滤棒中丝束规格要求为，单旦为4.5den~5.5den，总旦为15000den~25000den。A thin filter rod with good pressure drop stability, the acetate fiber tow is non-Y-shaped cross-sectional shape, the specification of the tow in the filter rod is 4.5den~5.5den per denier, the total The denier is 15000den~25000den.
所述压降稳定性较好的细支滤棒，所述非Y型截面形状的醋纤丝束，其截面形状为为O型、I型、R型、X型等比表面积相对较小（比表面积小于Y型）的形状。The thin filter rod with good pressure drop stability, the cellulose acetate tow with non-Y cross-sectional shape, its cross-sectional shape is O-type, I-type, R-type, X-type, etc. The specific surface area is relatively small ( The specific surface area is smaller than that of Y type).
所述压降稳定性较好的细支滤棒在卷烟中的应用，用于细支卷烟，所述细支卷烟规格为：长度为120mm，圆周为16.8mm。The application of the slim filter rod with better pressure drop stability in cigarettes is used for slim cigarettes, and the specifications of the slim cigarettes are: the length is 120 mm, and the circumference is 16.8 mm.
一种提高细支卷烟用细支滤棒压降稳定性的方法，细支滤棒用醋纤丝束采用非Y型截面形状醋纤丝束，具体采用O型截面形状、I型截面形状、R型截面形状、X型截面形状等表面积相对较小的醋纤丝束；细支滤棒中醋纤丝束规格要求为：单旦为4.5den~5.5den，总旦为15000den~25000den；细支滤棒中醋纤丝束性能要求为：含水率为（6.0±1.6）%，油剂含量为（0.70~1.50）%，断裂强度≥18. 0N/Ktex，残余丙酮含量≤0. 30%，二氧化钛含量为（0.40±0.20）%。A method for improving the pressure drop stability of slim filter rods for slim cigarettes, the acetate tows for fine filter rods adopt non-Y-shaped cross-sectional shapes, specifically O-shaped cross-sectional shapes, I-shaped cross-sectional shapes, Acetate fiber tow with relatively small surface area such as R-shaped cross-section and X-shaped cross-section; the specifications of acetate tow in fine filter rods are: single denier is 4.5den~5.5den, and total denier is 15000den~25000den; The performance requirements of cellulose acetate tow in the filter rod are: moisture content (6.0±1.6)%, oil content (0.70~1.50)%, breaking strength ≥ 18. 0N/Ktex, residual acetone content ≤ 0. 30% , the titanium dioxide content is (0.40±0.20)%.
所述非Y型截面形状醋纤丝束的制备方法，其主要制备原料为二醋酸纤维素片，其制备过程为：The preparation method of the cellulose acetate tow of the non-Y cross-sectional shape, its main preparation raw material is cellulose diacetate sheet, and its preparation process is:
首先，将二醋酸纤维素片溶解于丙酮溶液中，溶解的同时，将助滤剂以及消光剂(TiO2)加入溶液中，然后对溶液进行多级压缩过滤处理，去除混合液（纺丝液）中的胶质以及固体杂质；First, dissolving cellulose diacetate sheet in acetone solution, while dissolving, filter aid and matting agent (TiO2 ) are added to the solution, and then the solution is subjected to multi-stage compression filtration to remove the mixed solution (spinning solution). ) colloid and solid impurities;
其次，采用纺丝设备，以过滤后混合浆液作为原料，经非Y型形状孔径的喷丝孔后，形成非Y型截面形状单丝线密度的丝，再根据设计要求进行不同孔径孔数的配比进行纺丝；纺丝时，非Y型截面形状的丝束是经孔径较小喷丝孔喷丝后纺丝制得的，同时，喷丝板上的喷丝孔数量比正常细支滤棒丝束喷丝板多；Secondly, using spinning equipment, the filtered mixed slurry is used as the raw material, and after passing through the spinneret holes with non-Y-shaped apertures, filaments with non-Y-shaped cross-sectional shapes and linear densities are formed, and then according to the design requirements, different apertures and numbers are prepared. When spinning, the non-Y-shaped tow is obtained by spinning through the spinneret holes with smaller apertures, and at the same time, the number of spinneret holes on the spinneret plate is smaller than that of normal finer filter There are many spinnerets for rod tow;
最后，丝束从喷丝口喷出后进入卷曲机，再进入干燥机，加热蒸发掉残余的丙酮和水分，形成干燥的丝束，接着经过摆丝、打包后制备成非Y型截面形状醋纤丝束成品。Finally, the tow is ejected from the spinneret and enters the crimping machine, and then enters the dryer, where the remaining acetone and water are evaporated by heating to form a dry tow, which is then prepared into a non-Y-shaped cross-sectional shape after spinning and packaging. Finished filament bundle.
本申请所提供的细支滤棒，采用了与现有细支滤棒中“高单旦、低总旦”相反的设计思路，而采用了“低单旦、高总旦”的设计原则，通过对醋纤丝束截面形状的改进，获得了与现有细支滤棒相同的压降指标，同时增加了滤棒内所含醋纤丝束根数，因而较好提升了细支滤棒压降的稳定性，降低了细支滤棒压降波动的可能性。The fine filter rod provided by this application adopts the opposite design idea of "high single denier, low total denier" in the existing fine filter rods, and adopts the design principle of "low single denier, high total denier", Through the improvement of the cross-sectional shape of the acetate tow, the same pressure drop index as the existing fine filter rod is obtained, and at the same time, the number of acetate tow in the filter rod is increased, thus better improving the fine filter rod The stability of the pressure drop reduces the possibility of fluctuations in the pressure drop of fine filter rods.
就现有醋纤丝束截面形状而言，如图1所示，Y型是最为常用的截面形状。由于醋纤丝束截面形状的差异，因而导致丝束表面积的不同，进而导致滤棒过滤效率的差异，因而现有技术中虽然其他截面形状的醋纤丝束设计，但由于单一因素改变时，往往导致烟支整体效果的较为明显的变化，因而现有技术中，尤其是针对细支滤棒而言，尚未见到采用其他截面形状醋纤丝束的报道。As far as the cross-sectional shape of the existing cellulose acetate tow is concerned, as shown in Figure 1, the Y-shaped cross-sectional shape is the most commonly used. Due to the difference in the cross-sectional shape of the acetate tow, the difference in the surface area of the tow is caused, which in turn leads to the difference in the filtration efficiency of the filter rod. Therefore, in the prior art, although the acetate tow of other cross-sectional shapes is designed, when a single factor changes, It often leads to a relatively obvious change in the overall effect of cigarettes. Therefore, in the prior art, especially for fine filter rods, there have been no reports of using acetate tows with other cross-sectional shapes.
总体而言，本申请所采用的非Y型截面形状醋纤丝束，其制备时仅需在现有醋纤丝束制备设备上适当改进即可，因而操作简单，易于实现，但基于此改进后的细支滤棒由于压降稳定性较好，因而具有较好的应用效果，同时也为细支滤棒的设计研发、细支卷烟质量控制等生产工艺的进一步改进提供了借鉴和参考。而本发明相较于现有的优化成型机参数、提高醋纤丝束质量稳定性等“治标不治本”的提高压降稳定性方法而言，本发明从新型醋纤丝束选用这一根本入手，因而解决压降稳定性问题较为彻底，技术效果也较为稳定，改善效果较为明显，表现出较好的应用与推广价值。Generally speaking, the preparation of non-Y-shaped cellulose acetate tow in this application only needs to be appropriately improved on the existing cellulose acetate tow preparation equipment, so the operation is simple and easy to implement, but based on this improvement The final slim filter rod has a better application effect due to its better pressure drop stability, and it also provides reference and reference for further improvement of the design and development of slim filter rods, quality control of slim cigarettes and other production processes. Compared with the existing method of optimizing the molding machine parameters and improving the quality stability of acetate fiber tow, the present invention is based on the fundamental method of improving the pressure drop stability, which is "a temporary solution, not a permanent cure". Therefore, the solution to the problem of pressure drop stability is relatively thorough, the technical effect is relatively stable, the improvement effect is more obvious, and it shows good application and promotion value.
附图说明Description of drawings
图1为现有技术中最为常用的Y型截面形状；Fig. 1 is the most commonly used Y-shaped cross-sectional shape in the prior art;
图2~5为本申请中不同截面形状醋纤丝束形状结构示意图，其中图2为I型截面，图3为O型截面，图4为R型截面，图5为X型截面。Figures 2 to 5 are schematic diagrams of the shape and structure of acetate tows with different cross-sectional shapes in the present application, wherein Figure 2 is an I-shaped cross-section, Figure 3 is an O-shaped cross-section, Figure 4 is an R-shaped cross-section, and Figure 5 is an X-shaped cross-section.
具体实施方式detailed description
下面结合实施例对本发明做进一步解释说明。在介绍具体实施例前，首先对下述实施例中所述醋纤丝束的制备过程简要介绍如下。The present invention is further explained below in conjunction with embodiment. Before introducing the specific embodiments, first the preparation process of the cellulose acetate tow described in the following embodiments is briefly introduced as follows.
下述实施例中所述非Y型截面形状醋纤丝束的制备方法，其主要制备原料为二醋酸纤维素片，其制备过程为：The preparation method of non-Y-shaped cross-sectional shape cellulose acetate tow described in the following examples, its main preparation raw material is cellulose diacetate sheet, and its preparation process is:
首先，将二醋酸纤维素片溶解于丙酮溶液中，溶解的同时，将助滤剂以及消光剂(TiO2)加入溶液中，然后对溶液进行多级压缩过滤处理，去除混合液（纺丝液）中的胶质以及固体杂质；First, dissolving cellulose diacetate sheet in acetone solution, while dissolving, filter aid and matting agent (TiO2 ) are added to the solution, and then the solution is subjected to multi-stage compression filtration to remove the mixed solution (spinning solution). ) colloid and solid impurities;
其次，采用纺丝设备，以过滤后混合浆液作为原料，经非Y型形状孔径的喷丝孔后，形成非Y型截面形状单丝线密度的丝，再根据设计要求进行不同孔径孔数的配比进行纺丝；纺丝时，非Y型截面形状的丝束是经孔径较小喷丝孔喷丝后纺丝制得的，同时，喷丝板上的喷丝孔数量比正常细支滤棒丝束喷丝板多；Secondly, using spinning equipment, the filtered mixed slurry is used as the raw material, and after passing through the spinneret holes with non-Y-shaped apertures, filaments with non-Y-shaped cross-sectional shapes and linear densities are formed, and then according to the design requirements, different apertures and numbers are prepared. When spinning, the non-Y-shaped tow is obtained by spinning through the spinneret holes with smaller apertures, and at the same time, the number of spinneret holes on the spinneret plate is smaller than that of normal finer filter There are many spinnerets for rod tow;
最后，丝束从喷丝口喷出后进入卷曲机，再进入干燥机，加热蒸发掉残余的丙酮和水分，形成干燥的丝束，接着经过摆丝、打包后制备成非Y型截面形状醋纤丝束成品。Finally, the tow is ejected from the spinneret and enters the crimping machine, and then enters the dryer, where the remaining acetone and water are evaporated by heating to form a dry tow, which is then prepared into a non-Y-shaped cross-sectional shape after spinning and packaging. Finished filament bundle.
制备过程中所述非Y型截面具体如图2~图5所示的I型截面、O型截面、R型截面、X型截面等；The non-Y-shaped cross-sections described in the preparation process are specifically I-shaped cross-sections, O-shaped cross-sections, R-shaped cross-sections, X-shaped cross-sections, etc. as shown in Figures 2 to 5;
需要说明的是，醋纤丝束截面形状按照标准《YCT 169-6-2009 烟用丝束理化性能的测定 第6部分：截面形状和径向异形度》进行；It should be noted that the cross-sectional shape of acetate tow is carried out in accordance with the standard "YCT 169-6-2009 Determination of Physical and Chemical Properties of Tow for Tobacco Part 6: Cross-sectional Shape and Radial Irregularity";
另外需要说明的是，下述实施例中所述细支卷烟滤棒规格为：长度为120mm，圆周为16.8mm。In addition, it should be noted that the specifications of the slim cigarette filter rods in the following examples are: the length is 120 mm, and the circumference is 16.8 mm.
实施例1Example 1
本实施例所提供的压降稳定性较好的细支滤棒，其醋纤丝束采用非Y型截面形状的醋纤丝束，所述非Y型截面形状的醋纤丝束，其截面形状分别为O型；In the fine filter rod with good pressure drop stability provided in this embodiment, the acetate tow is a non-Y-shaped cross-sectional shape of the acetate tow, and the cross-sectional shape of the non-Y-shaped cross-sectional shape of the acetate tow is The shape is O type respectively;
滤棒中丝束规格要求为，单旦为5.0den，总旦为20000den，含水率为（6. 0±1. 6）%，油剂含量为（0. 70~1. 50）%，断裂强度≥18. 0N/Ktex，残余丙酮含量≤ 0. 30%，二氧化钛含量为（0. 40±0. 20）%。The specifications of the tow in the filter rod are as follows: the single denier is 5.0den, the total denier is 20000den, the water content is (6.0±1.6)%, the oil content is (0.70~1.50)%, and the broken Strength ≥18. 0N/Ktex, residual acetone content ≤ 0. 30%, titanium dioxide content (0. 40±0. 20)%.
实施例2Example 2
本实施例所提供的压降稳定性较好的细支滤棒，其醋纤丝束采用非Y型截面形状的醋纤丝束，所述非Y型截面形状的醋纤丝束，其截面形状分别为I型；In the fine filter rod with good pressure drop stability provided in this embodiment, the acetate tow is a non-Y-shaped cross-sectional shape of the acetate tow, and the cross-sectional shape of the non-Y-shaped cross-sectional shape of the acetate tow is The shape is type I respectively;
滤棒中丝束规格要求为，单旦为4.5den，总旦为25000den，含水率为（6. 0±1. 6）%，油剂含量为（0. 70~1. 50）%，断裂强度≥18. 0N/Ktex，残余丙酮含量≤ 0. 30%，二氧化钛含量为（0. 40±0. 20）%。The specifications of the tow in the filter rod are as follows: the single denier is 4.5den, the total denier is 25000den, the water content is (6.0±1.6)%, the oil content is (0.70~1.50)%, and the broken Strength ≥18. 0N/Ktex, residual acetone content ≤ 0. 30%, titanium dioxide content (0. 40±0. 20)%.
对实施例1、2所制备的细支滤棒，按现有技术制备成细支卷烟后，对细支滤棒的压降及滤棒的过滤效率进行检测，检测结果简要介绍如下。After the slim filter sticks prepared in Examples 1 and 2 were made into slim cigarettes according to the prior art, the pressure drop and filtration efficiency of the slim filter sticks were tested. The test results are briefly introduced as follows.
对细支滤棒压降的检测：Detection of pressure drop on fine filter rods:
滤棒的压降检测在SODIM综合测试台上完成，每个实施例均随机抽娶30支滤棒作为待测样品，借助该综合测试台的自动计算模块计算出所测样品压降的平均值、变异系数等，The pressure drop detection of the filter rods is completed on the SODIM comprehensive test bench. In each embodiment, 30 filter rods are randomly selected as the samples to be tested, and the average value of the pressure drop of the tested samples is calculated by means of the automatic calculation module of the comprehensive test bench. , coefficient of variation, etc.,
检测结果如下表所示：The test results are shown in the table below:
。 .
对细支滤棒过滤效率（以烟碱计）的检测：Detection of filtration efficiency (calculated by nicotine) of fine filter sticks:
根据YC/T154-2001和YC/T156-2001测定滤嘴中的烟碱含量(mF)和剑桥滤片捕集的烟碱含量(mH)，烟碱过滤效率(NFE)的计算公式如下：According to YC/T154-2001 and YC/T156-2001, measure the nicotine content (mF) in the filter and the nicotine content (mH) captured by the Cambridge filter. The calculation formula of nicotine filtration efficiency (NFE) is as follows:
NFE=[mF／(mF+mH)]×100％；NFE=[mF/(mF+mH)]×100%;
滤嘴烟碱过滤效率指滤嘴中截留的烟碱占烟支产生的总粒相物中烟碱的百分数。Filter nicotine filtration efficiency refers to the percentage of nicotine intercepted in the filter to the total particulate matter produced by cigarettes.
检测结果如下表所示：The test results are shown in the table below:
。 .
对比例comparative example
为体现本申请所提供细支滤棒压降稳定性较好的技术效果，申请人采用现用烟草行业在用的主要规格的醋纤丝束制备了细支滤棒，按现有技术制备了细支卷烟并进行压降和滤棒过滤效率的具体检测。简要介绍说明如下。In order to reflect the technical effect of the better pressure drop stability of the fine filter rods provided by the application, the applicant prepared fine filter rods by using acetate fiber tows of main specifications currently used in the tobacco industry, and prepared the fine filter rods according to the prior art Slim cigarettes are tested for pressure drop and filter rod filtration efficiency. A brief introduction is described below.
现有技术中，制备细支卷烟滤棒用醋纤丝束主要为Y型截面（图1所示），规格主要有：6.0Y17000规格醋纤丝束（对比例1）；6.7Y17000规格醋纤丝束（对比例2）；In the prior art, the acetate fiber tow used to prepare slim cigarette filter rods is mainly Y-shaped cross-section (as shown in Figure 1), and the specifications mainly include: 6.0Y17000 specification acetate fiber tow (comparative example 1); 6.7Y17000 specification acetate fiber tow Tow (comparative example 2);
对细支滤棒压降检测结果如下表所示：The test results of the pressure drop of fine filter rods are shown in the table below:
。 .
对细支滤棒过滤效率（以烟碱计）检测结果如下表所示：The test results of the filtration efficiency (calculated by nicotine) of fine filter rods are shown in the following table:
。 .
对上述实施例与对比例检测数据进行对比分析可以看出，通过改变细支滤棒醋纤丝束的截面形状，可以显著提升滤棒压降的稳定性，同时达到基本相同的过滤效率，并不会减弱细支卷烟的烟气浓度。 对比例中采用的两种醋纤丝束规格为烟草行业目前主流在用的，其存在压降稳定性差等问题，通过改变丝束截面形状，显著弱化了该问题的存在，且改变丝束截面形状的方法简便易行，不会增加额外工业成本，可快速实现规模化生产，因而可为后续的上细支卷烟质量改进提供更为有效的参考。By comparing and analyzing the detection data of the above-mentioned examples and comparative examples, it can be seen that by changing the cross-sectional shape of the fine filter rod acetate tow, the stability of the pressure drop of the filter rod can be significantly improved, and the same filtration efficiency can be achieved at the same time. Does not reduce the smoke concentration of slim cigarettes. The specifications of the two acetate tows used in the comparative example are currently the mainstream in the tobacco industry, and they have problems such as poor pressure drop stability. By changing the cross-sectional shape of the tow, the existence of this problem is significantly weakened. The shape method is simple and easy to implement without adding additional industrial costs, and can quickly realize large-scale production, so it can provide a more effective reference for subsequent quality improvement of upper slim cigarettes.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611127278.0ACN106539126A (en) | 2016-12-09 | 2016-12-09 | A kind of preferable ramuscule filter stick of pressure drop stability and its application |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611127278.0ACN106539126A (en) | 2016-12-09 | 2016-12-09 | A kind of preferable ramuscule filter stick of pressure drop stability and its application |
| Publication Number | Publication Date |
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| CN106539126Atrue CN106539126A (en) | 2017-03-29 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611127278.0APendingCN106539126A (en) | 2016-12-09 | 2016-12-09 | A kind of preferable ramuscule filter stick of pressure drop stability and its application |
| Country | Link |
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| CN (1) | CN106539126A (en) |
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