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WO2002032238A2 - Balle de meche pour filtre fortement comprimee - Google Patents

Balle de meche pour filtre fortement comprimee Download PDF

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Publication number
WO2002032238A2
WO2002032238A2 PCT/EP2001/012154 EP0112154W WO0232238A2 WO 2002032238 A2 WO2002032238 A2 WO 2002032238A2 EP 0112154 W EP0112154 W EP 0112154W WO 0232238 A2 WO0232238 A2 WO 0232238A2
Authority
WO
WIPO (PCT)
Prior art keywords
tow
bale
filter
width
filter tow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2001/012154
Other languages
German (de)
English (en)
Inventor
Acetow Gmbh Rhodia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cerdia Produktions GmbH
Original Assignee
Rhodia Acetow GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhodia Acetow GmbH filed Critical Rhodia Acetow GmbH
Priority to AU16975/02A priority Critical patent/AU1697502A/en
Publication of WO2002032238A2 publication Critical patent/WO2002032238A2/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters

Definitions

  • the invention relates to a highly compressed bale of filter tow for cigarette filters.
  • filter tow which consists of endless cellulose-2.5-acetate filaments. After spinning, the individual filaments are combined into a band and then crimped in a stuffer box. The product is then dried, filled into a storage container and finally pressed into bales. Depending on the bale format, these bales weigh between 350 and 650 kg, with exceptionally also high-density bales with weights of up to 900 kg, so-called "high-density tow bales", as are described, for example, in US Pat. No. 4,577,752.
  • the filter tow bale After the filter tow bale has been transported to the filter or cigarette manufacturer, the filter tow is removed from the bale and placed on a filter rod machine, as described e.g. in US-A-5,460,590, processed into filter rods.
  • the filter tow is pulled off the bale, pneumatically spread out to a width of 100mm or more, stretched in a stretching device, provided with an additive which serves to glue the filaments, and then, after formation of a three-dimensional fuse, is introduced into the format part using a pneumatic inlet funnel, there compressed axially, covered with paper and cut to the final length of the filter rods.
  • the essential quality characteristic for the consumer is the homogeneity of the produced filter rods with regard to the draw resistance, since this influences the smoker's taste sensation and the filter performance.
  • the still acceptable draw resistance variations depend on the absolute value of the draw resistance. In general, with averaging at least 10 samples from each 5 measured filter rods, a variation coefficient of maximum 3.5% is just accepted by the ner worker. As a rule, however, an average of less than 3.2% is aimed for. None of the individual values of the variation coefficients of these at least 10 samples should be higher than 4.5%.
  • the homogeneity of the filter rods with regard to the tensile resistance is influenced by several factors, for example by the quality of the filter tow, by the ner pack and by the ner processing method.
  • the filter tow bales As for the ner pack, it is important for the filter tow to run smoothly from the bale. Particularly due to the ever increasing packing density of the bales, there are often fluctuations in tension resistance. While an average of 350 kg / m 3 was common 10 years ago, the packing density of filter tow bales is currently between 450 and 500 kg / m 3 . Process-related work problems often occur with these high-density bales. Voltage changes when the filter tow is removed lead to uneven northward stretching of the material as it enters the filter rod machine and thus to fluctuations in the material and tensile strength.
  • the filter tow bale according to the invention with a packing density of more than 450 g / m 3 has an average Shore hardness of less than 50 on its surface, measured perpendicular to the tow position, no local Shore hardness values of more than 60 and the tow width in the bale is less than 50 mm if the tow has a total titer of more than 30,000 dtex, or the tow width in the bale is a maximum of 1.7 * 10 "6 (m / dtex) * Total titer (dtex) is when the tow has a total titer of less than 30,000 dtex, the value of the heap factor being more than 20 and the effective placement width being less than 65 mm.
  • the hardness value is an excellent indicator of the trouble-free drainage of the filter material from the bale.
  • the tensile resistance scatter of the filter rods produced can be positively be influenced.
  • the subsequent processing steps can be considerably simplified and faults minimized by optimizing the tow storage. It is consequently also important to ensure that the average hardness remains below the stated value even in the case of highly compacted bales with a packing density of more than 450 g / m 3 .
  • the mean hardness of a bale is understood to mean the mean value that results from 10 times 9 different measurements at the points on the surface of the filter tow bale identified in measurement scheme 1: The hardness of the bale is compared with that in DIN 53505, Edition 2000 - 08 (testing of rubber and elatoms according to Shore A and D) determined using the Shore A method.
  • the adhesion from band to band or also the adhesion from fiber to fiber increases with increasing bale density, which has negative consequences for the product uniformity with regard to tensile resistance achieved during processing. It is therefore important to ensure that, despite the increasing tape adhesion, the average hardness of the bales remains within the scope specified according to the invention.
  • the risk of increased scatter of resistance in the end product, i.e. in the finished filter rod increasing significantly with increasing hardness.
  • the unpressed volume is understood to be the volume that arises from the pre-compression due to gravity or a targeted mechanical pre-compression of the filter tow in the filling can.
  • the unpressed volume of a filter tow bale can be calculated using the following formula:
  • Vu L x B B x A x HL
  • L is the length of the bale
  • B B is the width of the bale
  • A is the number of layers
  • H L is the height of a layer.
  • bales with a filling density of more than 450 kg / m 3 can no longer be processed without problems if the ratio of the unpressed volume Vu and the pressed volume Vp was greater than 3.5.
  • a very high average hardness was measured with such bales and in particular greatly increased individual values were found.
  • the average hardness, measured at the top of the bale surface, was more than 50, with individual values of over 60 also available.
  • the filter rods produced had tensile resistance scatterings which were above the desired values specified above.
  • bales according to the invention which have a packing density of more than 450 kg / m 3 , care must be taken to ensure that the ratio of the unpressed volume Vu to the pressed volume Vp is significantly smaller than the above-mentioned value of 3.5.
  • a ratio of Vu to Vp of less than 3.2 should be aimed for.
  • those filter tow bales are preferred whose average shore hardness is the surface of the bale is less than 45, preferably no local hardness values of more than 55 should occur. This is generally accomplished by further reducing the Vu to Vp ratio, particularly to a value less than 3.1.
  • the ratio of unpressed volume to pressed volume is dependent on a number of factors that affect each other. Of these factors, the bandwidth plays in particular, i.e. the width of the filter tow band in the bale, and the so-called accumulation factor play a role.
  • the unpressed volume Vu of the filter tow bale (and thus also the volume ratio of the unpressed and pressed filter tow bale) can be reduced by suitably arranging the filter tow within the bale.
  • the unpressed volume can be reduced by reducing the mean width of the filter tow in the bale.
  • maximum limits for the values of the average width were determined as a function of the overall titer.
  • the tow width in the bale must be less than 50 mm if the tow has a total titer of more than 30,000 dtex, or a maximum of 1.7 x 10 "6 (m / dtex) x total titer (dtex) if the Tow has a total titer of less than 30,000 dtex, and adhering to the above-mentioned values ensures a smooth removal of the filter tow from the bale in a subsequent processing process and low fluctuations in tensile resistance in the end product proven less than 45 mm if the total titer of the filter tow is greater than 30,000 dtex or tow widths of less than 1.5 x 10 "6 (m / dtex) x total titer (dtex) if the total titer is less than 30,000 dtex.
  • the tow widths mentioned in the table are common because they have proven to be optimal both in the packaging of the bales and in the processing of the material on some filter rod machines.
  • a width of approximately 52 mm is usually specified (cf. Celanese acetate, RodMap TM KDF2 / AF2, version 2.0, 1995).
  • the width of the tow is an easy-to-check size for the processor.
  • the width of a filter tow which is of course dependent on filament and total titer, can be influenced by a variety of measures in the production process.
  • Filter Tow which despite the reduced width does not have greater width fluctuations than ⁇ 12%, can be generated, for example, by the tape in the stuffer box or after leaving the stuffer box crimp and before entering the dryer with at least 20 g of water (resp. Water vapor) is rewetted per kg filter tow.
  • this measure in addition to the reduction in the scattering in the resistance to drag, the formation of lint, which is troublesome during further processing, can be significantly reduced.
  • a value of approximately 0.7 * 10 "6 (m / dtex) * total titer (dtex) is to be regarded as the absolute lower limit of the width, which is possible or sensible from a process engineering point of view by reducing the unpressed volume, the advantage achieved with regard to the scattering in the resistance to drag due to the procedural problems that arise during the further processing of the filter tow already below an average width of 0.8 * 10 "6 (m / dtex) * total titer (dtex), so that from this value onwards no further increases in quality can be achieved by further reducing the width.
  • m A is the weight of a layer of filter tow in the bale
  • L A is the length of a layer of filter tow in the bale (this corresponds to the length of the bale)
  • Lo is the length of a completely uncrimped layer of filter tow.
  • the accumulation factor should be selected so that an effective placement width of the filter tow of 65 mm is not exceeded.
  • an effective placement width of less than 65 is preferred mm and in particular less than 60 mm.
  • the value of the effective placement width depends on the bandwidth of the filter tow band and the accumulation factor. It is calculated using the following equation:
  • a complete layer of filter tow with F traces has the following total weight:
  • m is the mass of a deposit track and L A is the length of a deposit track.
  • the laying frequency F is determined independently of the laying pattern in such a way that a flat surface that is as uniform as possible is produced even in the unpressed state. It has been found that optimum placement is achieved when the product of the laying frequency F and the effective laying width B er r of a band is approximately equal to the width of a bale. This is illustrated by the following relation:
  • a filter tow band with a filament titer of 3.3 dtex and a total titer of 38500 dtex is spun.
  • the filament cross section is Y-shaped.
  • the filter tow When placed in the jug, the filter tow has a width of 62 mm + - 9mm.
  • the packing machine for filling in the material is set so that there is an accumulation factor of 20 and a depositing frequency F of 13. After filling a total of 605 kg of filter tow, an unpressed volume Vu of 4.2 m 3 results.
  • the filter tow is pressed to a final volume of 1.2 m 3 and packed as usual.
  • the bale is opened to firstly determine the surface hardness and, secondly, to produce filter rods for determining the spreading resistance.
  • the width of the filter tow is measured during the process.
  • filter rods with a length of 126 mm and a diameter of 7.8 mm are produced on a filter rod machine KDF2 / AF2 at a processing speed of 400 m min.
  • the target tension resistance was 350 daPa.
  • a coefficient of variation of 3.5% was determined from 10 samples of 5 measured filter rods each, the maximum value being 5.2%.
  • the width of the filter tow was determined as follows: The filter tow is drawn off on a filter rod machine KDF2 / AF2 at a speed of 100 m / min. The air is switched off at the first spreader nozzle. A line camera for measuring the tow width is attached 300 mm below the spreader nozzle. The evaluation of 100 individual measurements (one measurement every 3 seconds) resulted in an average tow width of 66.3 mm, the smallest individual value being 48 mm and the largest 81 mm.
  • a filter tow band with a filament titer of 3.3 dtex and a total titer of 38500 dtex is spun.
  • the filament cross section is Y-shaped.
  • the tape is crimped using a conventional stuffer box process. After the crimping process, the filter tow is moistened with 10g water per kg tow.
  • the filter tow has a width of 45 mm + - 4mm.
  • the packing machine for filling the material is set so that there is an accumulation factor of 32 and a placement frequency F of 17.
  • an unpressed volume Vu of 3.606 m 3 results.
  • the filter tow is pressed to a final volume of 1.2 m 3 and packed as usual.
  • the bale is opened to firstly determine the surface hardness and secondly to produce filter rods for determining the scattering in the resistance.
  • the width of the filter tow is measured during the process.
  • the width of the filter tow was determined as follows: The filter tow is drawn off on a filter rod machine KDF2 / AF2 at a speed of 100 m / min. The air is switched off at the first spreader nozzle. A line camera for measuring the tow width is attached 300 mm below the spreader nozzle. The evaluation of 100 individual measurements (one measurement every 3 seconds) resulted in an average tow width of 49.1 mm, the smallest individual value being 40 mm and the largest one being 51 mm.
  • a filter tow band with a filament titer of 3.3 dtex and a total titer of 38500 dtex is spun.
  • the filament cross section is Y-shaped.
  • the tape is crimped using a conventional stuffer box process.
  • the filter tow is moistened with 8g water per kg tow immediately before the crimping process and with 5g water per kg tow after the crimping process.
  • the filter tow When placed in the jug, the filter tow has a width of 35 mm + - 4mm.
  • the packing machine for filling the material is set so that there is an accumulation factor of 32 and a placement frequency F of 19.
  • an unpressed volume Vu of 3.42 m 3 results.
  • the filter tow is pressed to a final volume of 1.2 m and packaged as usual.
  • the bale is opened to firstly determine the surface hardness and secondly to produce filter rods for determining the scattering in the resistance.
  • the width of the filter tow is measured during the process.
  • filter rods with a length of 126 mm and a diameter of 7.8 mm are produced on a filter rod machine KDF2 / AF2 at a processing speed of 400 m / min.
  • the target tension resistance was 350 daPa.
  • a coefficient of variation of 2.0% was determined from 10 samples of 5 measured filter rods each, the maximum value being 2.7%.
  • the width of the filter tow was determined as follows: The filter tow is drawn off on a filter rod machine KDF2 / AF2 at a speed of 100 m / min. The air is switched off at the first spreader nozzle. A line camera for measuring the tow width is attached 300 mm below the spreader nozzle. The evaluation of 100 individual measurements (one measurement every 3 seconds) resulted in an average tow width of 40.1 mm, the smallest individual value being 38 mm and the largest being 42.5 mm.
  • FIG. 1 shows a schematic view of a bale surface with possible measuring points 1 to 9. Each of the dimensions is approximately 100 mm x 100 mm. The individual results measured at the various measuring points are inserted into the table below during the tests, and the mean value and the maximum value are then determined.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne une balle de mèche pour filtre fortement comprimée, présentant une densité de tassement supérieure à 450 kg/m<3> et sur sa surface, mesurée perpendiculairement à la position de la mèche, une dureté Shore moyenne inférieure à 50. Selon cette invention, aucune valeur locale de dureté Shore n'est supérieure à 60 et la largeur de mèche dans la balle est inférieure à 50 mm, lorsque la mèche présente un titre total supérieur à 30 000 tdex, ou bien égale à 1,7 * 10<-6> (m/dtex) * titre total (dtex), lorsque la mèche présente un titre total inférieur à 30 000, la valeur du coefficient d'accumulation étant supérieure à 20 et la largeur de pliage effective inférieure à 65 mm.
PCT/EP2001/012154 2000-10-20 2001-10-19 Balle de meche pour filtre fortement comprimee Ceased WO2002032238A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16975/02A AU1697502A (en) 2000-10-20 2001-10-19 Highly compressed filter tow bales

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10052215 2000-10-20
DE10052215.720001020 2000-10-20

Publications (1)

Publication Number Publication Date
WO2002032238A2 true WO2002032238A2 (fr) 2002-04-25

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PCT/EP2001/012154 Ceased WO2002032238A2 (fr) 2000-10-20 2001-10-19 Balle de meche pour filtre fortement comprimee

Country Status (2)

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AU (1) AU1697502A (fr)
WO (1) WO2002032238A2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7306093B2 (en) 2003-02-14 2007-12-11 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US7424850B2 (en) 2005-05-09 2008-09-16 Celanese Acetate Llc Fiber bale and a method for producing the same
US7487720B2 (en) 2007-03-05 2009-02-10 Celanese Acetate Llc Method of making a bale of cellulose acetate tow
WO2009083092A1 (fr) * 2007-12-21 2009-07-09 Rhodia Acetow Gmbh Balle de mèche pour filtre, dispositif et procédé de production d'une balle de mèche pour filtre ainsi que de bandes de mèche pour filtre
US7730832B2 (en) 2005-04-28 2010-06-08 Eastman Chemical Company Method and apparatus for forming a bale having substantially flat upper and lower surfaces
EP2236427A1 (fr) 2009-03-31 2010-10-06 Daicel Chemical Industries, Ltd. Procédé d'emballage d'une balle de mèche pour filtre comprimée
KR101411124B1 (ko) * 2006-04-03 2014-06-25 글락소 그룹 리미티드 헤테로시클릭 유도체의 제조 방법
EP3088309A1 (fr) 2015-04-29 2016-11-02 Solvay Acetow GmbH Procédé de fabrication d'une balle d'étoupe de filtre emballée
EP2910477B1 (fr) 2014-02-21 2018-03-28 Celanese Acetate LLC Procédés d'emballage de matériaux fibreux

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7958696B2 (en) 2003-02-14 2011-06-14 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US9598184B2 (en) 2003-02-14 2017-03-21 Eastman Chemical Company Method for packaging fiber material
US7306093B2 (en) 2003-02-14 2007-12-11 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US7739857B2 (en) 2003-02-14 2010-06-22 Eastman Chemical Company Packages, packaging systems, methods for packaging and apparatus for packaging
US8156862B2 (en) 2005-04-28 2012-04-17 Eastman Chemical Company Method and apparatus for forming a bale having substantially flat upper and lower surfaces
US7730832B2 (en) 2005-04-28 2010-06-08 Eastman Chemical Company Method and apparatus for forming a bale having substantially flat upper and lower surfaces
US7424850B2 (en) 2005-05-09 2008-09-16 Celanese Acetate Llc Fiber bale and a method for producing the same
KR101411124B1 (ko) * 2006-04-03 2014-06-25 글락소 그룹 리미티드 헤테로시클릭 유도체의 제조 방법
US7610852B2 (en) 2007-03-05 2009-11-03 Celanese Acetate Llc Method of making a bale of cellulose acetate tow
US7487720B2 (en) 2007-03-05 2009-02-10 Celanese Acetate Llc Method of making a bale of cellulose acetate tow
WO2009083092A1 (fr) * 2007-12-21 2009-07-09 Rhodia Acetow Gmbh Balle de mèche pour filtre, dispositif et procédé de production d'une balle de mèche pour filtre ainsi que de bandes de mèche pour filtre
EP2236427A1 (fr) 2009-03-31 2010-10-06 Daicel Chemical Industries, Ltd. Procédé d'emballage d'une balle de mèche pour filtre comprimée
EP2407387A1 (fr) 2009-03-31 2012-01-18 Daicel Chemical Industries, Ltd. Procédé d'emballage d'une balle de mèche pour filtre comprimée
US8161716B2 (en) 2009-03-31 2012-04-24 Daicel Chemical Industries, Ltd. Method of packaging a compressed filter tow bale
EP2910477B1 (fr) 2014-02-21 2018-03-28 Celanese Acetate LLC Procédés d'emballage de matériaux fibreux
EP3088309A1 (fr) 2015-04-29 2016-11-02 Solvay Acetow GmbH Procédé de fabrication d'une balle d'étoupe de filtre emballée
WO2016174162A1 (fr) 2015-04-29 2016-11-03 Solvay Acetow Gmbh Procédé de fabrication d'une balle d'étoupe pour filtre empaquetée
US10793305B2 (en) 2015-04-29 2020-10-06 Rhodia Acetow Gmbh Method for producing a packed filter tow bale
DE112016001298B4 (de) 2015-04-29 2022-12-22 Cerdia International GmbH Verfahren zum herstellen eines verpackten filter tow-ballens

Also Published As

Publication number Publication date
AU1697502A (en) 2002-04-29

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