EP2910670A1 - Bande de garniture - Google Patents

Bande de garniture Download PDF

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Publication number
EP2910670A1
EP2910670A1 EP15155520.8A EP15155520A EP2910670A1 EP 2910670 A1 EP2910670 A1 EP 2910670A1 EP 15155520 A EP15155520 A EP 15155520A EP 2910670 A1 EP2910670 A1 EP 2910670A1
Authority
EP
European Patent Office
Prior art keywords
threads
format
weft threads
warp threads
format tape
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.)
Withdrawn
Application number
EP15155520.8A
Other languages
German (de)
English (en)
Inventor
Frank Bez
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.)
Max Schlatterer GmbH and Co KG
Original Assignee
Max Schlatterer GmbH and Co KG
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 Max Schlatterer GmbH and Co KG filed Critical Max Schlatterer GmbH and Co KG
Publication of EP2910670A1 publication Critical patent/EP2910670A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0094—Belts
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/06—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers
    • D10B2331/061—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers polyetherketones, polyetheretherketones, e.g. PEEK

Definitions

  • the invention relates to a format strip, in particular for the production of cigarettes or filters for cigarettes, with a fabric of warp threads and weft threads according to the features of claim 1.
  • a suction belt for transporting tobacco or filter material which comprises a fabric with warp threads and weft threads.
  • the warp threads and / or the weft threads comprise a core thread with a fiber of high-strength material and a coating surrounding the core thread.
  • the core thread is designed as a monofilament and may for example consist of Vectran, aramid or a polyether ketone.
  • the core thread of the warp and / or weft threads is designed as a multifilament core thread with a plurality of individual fibers.
  • the core thread can have, for example, between 40 and 150 of the individual fibers.
  • FIG. 1 For example, there is known another suction belt for conveying tobacco fibers in cigarette manufacturing machines, which comprises a fabric with warp threads and weft threads.
  • the weft threads are binding arranged so that one side of the tape smooth and the other side of the tape for better conveying of the bulk material has a raised by weft yarns, roughness.
  • the warp and weft threads can consist of a monofilament wire. However, parts of the weft threads and / or warp threads can also consist of multifilament threads.
  • the stiffness of the monofilament weft material leads to a trade-off between the required strength to allow interweaving at all, and the fact that the pronounced setting of the size tape is undesirably reflected on the filter strand. This has led to major manufacturing challenges in the past.
  • the two opposite edges of the format tape usually can not be dimensionally stable and straight, which leads to an increase in the expression of the format tape on the filter strand. On the filter strand is thus usually both the uneven setting and the weft thread-related roughness as a fine rib to recognize.
  • the temperatures of more than 140 ° C used in the filter production also have the effect that conventional, mostly made of polyester monofilaments shrink in the transverse direction, stretch in the longitudinal direction and finally fail. Due to considerable strength losses and increased abrasion, there is also a rapid belt fatigue, which also has a negative impact on the life of the belt.
  • the usually incalculable degree of shrinkage in the transverse direction of the strip and the turbulent strip edges on the filter strand form an undesirable bulge in the longitudinal direction. In the case of less severe shrinkage results in a too wide band, at which due to the overlap of the band edges a In contrast, in the case of greater shrinkage, too narrow a band is formed and a band gap results, which is reflected on the filter string.
  • a resistance of the format tape according to the invention over the hot steam used in the use thereof and achieved by the monofilament design of the warp threads On the other hand, it ensures that the porous, air- and vapor-permeable structure of the fabric is maintained. Due to the high temperature resistance of the format tape according to the invention may optionally also be used with a higher temperature steam.
  • the weft yarns made of a non-monofilament yarn or fiber yarn advantageously reduce both the roughness of the belt surface in the longitudinal direction and the roughness of the two belt edges, resulting in the reduction of the formation of undesirable marks in the filter material.
  • the monofilament warp threads can be made of a material which generates a higher coefficient of friction between the warp threads and the filter material, which ensures the entrainment of the filter material. Further, by using the non-monofilament yarn for the weft yarns, shrinkage of the tape in the width direction is substantially reduced.
  • the non-monofilament yarn for the weft threads therefore, a higher dimensional stability of the strip edges, a reduction of the strong embossing of the setting and a smoother strip construction reducing the markings on the filter material is achieved. Furthermore, the inventive construction of the weft threads due to the much lower flexural rigidity leads to a flatter and level clinging them to the warp threads, whereby the binding points are far less pronounced than in known solutions, which in turn manifests itself in a lower expression of the band on the filter material power. The non-monofilament weft threads also lead to a simpler processability of the same.
  • the format strip according to the invention can also be bent more easily, whereby ultimately a better roundness of the filter produced therewith or the cigarette produced with the same can be achieved.
  • a further significant advantage of the solution according to the invention results from the fact that the multifilament weft threads extending between the monofilament warp threads are so crushed or so flat pressed or otherwise deformed between the warp threads due to their multifilament design which leads to a certain softness thereof. that their thickness can be neglected compared to the thickness of the warp threads. This is the case because the individual fibers of the multifilament weft threads in the area in which they run between the warp threads can juxtapose, which substantially reduces the diameter of the weft threads in this area. For this reason, the weft threads in principle contribute nothing to the width of the entire format tape.
  • this defined width of the format strip and its diameter if it is deformed to transport the tobacco fibers or the filter material about its longitudinal axis to a tube, can be adjusted very accurately. This achieves an exactly closed circle of the format tape, thereby preventing a condition in which the format tape is not accurately closed due to a too small width, so that filter fibers are pushed out and beading occurs. Furthermore, a condition is also prevented in which a slight overlap results due to a too large width of the format tape, resulting in that a notch is pressed into the tobacco or the filter material. Finally, a very exact shape and a very exact diameter of the cigarette produced or the filter produced can be achieved by the inventive design of the format strip.
  • the weft threads are made of a twisted yarn .
  • weft threads polyether ketone, linen, a liquid crystalline polymer (LCP) and / or aramid.
  • the warp threads consist of PEEK.
  • PEEK or polyetheretherketone for the warp threads is very advantageous with regard to the temperature resistance of the format strip according to the invention and the further mechanical properties thereof, such as wear resistance and low elongation.
  • a major advantage of PEEK is its very high melting temperature of more than 300 ° C.
  • the warp threads and the weft threads are tied together by means of such a binding that the fabric has locally more vapor permeable areas.
  • a further advantageous embodiment of the invention may consist in that the warp threads have a diameter of 0.1 to 0.3 mm, preferably 0.20 to 0.24 mm. Such a thickness represents a good compromise of high strength and flexibility of the format tape according to the invention.
  • weft yarns may each have three twisted yarns, each yarn having a fineness of 150 dtex.
  • Such a configuration of the weft threads ensures, on the one hand, that the abovementioned mechanical properties of the format strip can be achieved without difficulty, and, on the other hand, prevents unwanted markings on the filter material due to the relatively thin threads.
  • the warp threads have a thread core and a thread sheath surrounding the thread core, wherein the thread core and the thread sheath have different colors.
  • Fig. 1 shows a format tape 1, which is used in particular for the production of cigarettes or filters for cigarettes.
  • the format strip 1 comprises a fabric 2 which consists of warp threads 3 or in the present case a warp thread 3 and weft threads 4 or in the present case a weft thread 4.
  • the weft 4 connects the as in Fig. 2 to recognize, spirally wound warp thread 3 at a plurality of bonding points to a homogeneous endless or quasi-endless belt.
  • quadsi-endless is meant the illustrated embodiment of the format tape 1, in which the warp thread 3 is present as a thread spiral.
  • the fabric 2 basically consists of a warp yarn 3 and a weft yarn 4, the following is spoken as usual of "warp yarns 3" and "weft yarns 4".
  • the format tape 1 can be used, for example, in a machine in which filters for cigarettes are produced in the form of endless or at least relatively long filter strands, which are also referred to as filter tows.
  • filters for cigarettes are produced in the form of endless or at least relatively long filter strands, which are also referred to as filter tows.
  • hot steam is passed through the format strip 1 in a manner not shown in order to achieve a solidification of the filter material, which is why the format strip 1 is designed to be vapor-permeable.
  • NWA filters that is filters on the periphery of which there is no filter paper, is known per se and will therefore not be described in detail below.
  • the warp threads 3 consist of a polyether ketone, preferably of PEEK, and are monofilament. Other suitable polyether ketones are PEKK, PEEEK, PEEKK and PEKEKK.
  • the warp threads 3 have a diameter of 0.1 to 0.3 mm, preferably 0.20 to 0.24 mm, which ensures the required strength for the format strip 1.
  • the warp threads 3 may have an oval cross-section in a manner not shown, resulting in a larger area, a lower surface pressure and thus less wear.
  • the weft threads 4 are made of a non-monofilament yarn or a fiber yarn, that is, in contrast to the warp threads 3 are not monofilament threads.
  • the weft thread 4 depicted has three yarns 5 twisted together, of which each yarn 5 has a fineness of 150 dtex in the present case.
  • individual of the yarns 5 of the weft threads 4 may consist of different materials.
  • a multifilament yarn for the weft threads 4.
  • Such a multifilament yarn has, in a manner known per se, a multiplicity of very thin fibers which are combined to form a yarn.
  • This multifilament yarn can also have a so-called Protective twist, which ensures the holding together of the individual fibers.
  • a material for the weft threads 4 is a Polyehterketon, such as PEEK PEKK, PEEEK, PEEKK and PEKEKK, linen, a liquid crystalline polymer or aramid in question, where, as mentioned above, if necessary, several materials in one and the same weft thread 4 can be used .
  • linen for the weft threads 4 is conceivable in particular in the production of cigarettes and the associated use of paper, whereas in the production of NWA filter material a polyether ketone is preferred.
  • the combination of the monofilament warp threads 3 consisting of a polyetherketone with the non-monofilament weft threads 4 results in a very good vapor permeability of the size band 1, combined with high temperature resistance, high strength and very good dimensional stability.
  • the warp threads 3 and the weft threads 4 can be bonded together by means of such a bond that the fabric 2 has locally more vapor permeable areas.
  • the term "locally more vapor permeable areas” means intended areas at certain locations, whose vapor permeability is higher than that of the other areas. For example, this can be set via the number of warp threads 3 per unit length over the width of the format strip 1.
  • such a binding may be provided, in which the weft threads 4, for example, in contrast to the representation of Fig.
  • certain binding points of the fabric 2 can be welded together, in particular laser welded, be.
  • the tape portion is cut off obliquely so that the seam made by laser welding extends obliquely over the size tape 1.
  • the welded joint is subsequently perforated in order to achieve the vapor permeability.
  • a perforation can also be performed with a laser.
  • appropriate stamp or the like are suitable for this purpose. Also in other areas of the size band 1, such a perforation is conceivable to improve the vapor permeability of the same.
  • format belt 1 could also be used as a vacuum belt for transporting various articles or materials, such as tobacco or filter material. If necessary, even small boxes or the like could be transported with the format tape 1.
  • the warp threads 3 may comprise a thread core and a thread sheath surrounding the thread core.
  • the thread core and the thread sheath may have different colors, so that a wear of the thread sheath is visible through the visible of the thread core.
  • the thread core preferably has a darker color than the thread wrapper.
  • Such an embodiment of the warp threads 3 is also to be regarded as a monofilament thread.
  • increased or recessed markings can be generated on the format tape 1, for example by laser, ultrasound, digital printing or by certain weaving or weaving techniques, which in the production in the manner of a hologram, watermark, lettering, customer or company-specific Feature, as initials or the like on the filter tow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
EP15155520.8A 2014-02-19 2015-02-18 Bande de garniture Withdrawn EP2910670A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014102120.7A DE102014102120B4 (de) 2014-02-19 2014-02-19 Formatband

Publications (1)

Publication Number Publication Date
EP2910670A1 true EP2910670A1 (fr) 2015-08-26

Family

ID=52544317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15155520.8A Withdrawn EP2910670A1 (fr) 2014-02-19 2015-02-18 Bande de garniture

Country Status (2)

Country Link
EP (1) EP2910670A1 (fr)
DE (1) DE102014102120B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3384789A1 (fr) 2017-04-07 2018-10-10 Max Schlatterer Gmbh&Co. Kg Bande pour la fabrication de cigarettes ou de filtres de cigarettes et procédé de fabrication
EP3396036A1 (fr) 2017-04-24 2018-10-31 Max Schlatterer Gmbh&Co. Kg Bande pour la fabrication de cigarettes ou de filtres de cigarettes
CN109007969A (zh) * 2017-06-08 2018-12-18 上海烟草集团有限责任公司 一种卷烟滤棒

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HRP20221206T1 (hr) 2017-12-13 2022-12-09 Max Schlatterer Gmbh & Co. Kg Ukrasna traka

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077901A2 (fr) * 1981-10-28 1983-05-04 Albany International Corp. Tissu résistant à l'hydrolyse pour la fabrication de papier et des utilisations analogues
US4820571A (en) * 1983-07-12 1989-04-11 Asten Group, Inc. High temperature industrial fabrics
DE19909031A1 (de) 1999-03-02 2000-09-14 Schlatterer Gmbh & Co Kg Max Förderband zum Fördern von Schüttgütern geringer spezifischer Dichte unter Vakuum
DE102012204970A1 (de) 2012-03-28 2013-10-02 Max Schlatterer Gmbh & Co. Kg Band für technische Zwecke

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0077901A2 (fr) * 1981-10-28 1983-05-04 Albany International Corp. Tissu résistant à l'hydrolyse pour la fabrication de papier et des utilisations analogues
US4820571A (en) * 1983-07-12 1989-04-11 Asten Group, Inc. High temperature industrial fabrics
DE19909031A1 (de) 1999-03-02 2000-09-14 Schlatterer Gmbh & Co Kg Max Förderband zum Fördern von Schüttgütern geringer spezifischer Dichte unter Vakuum
DE102012204970A1 (de) 2012-03-28 2013-10-02 Max Schlatterer Gmbh & Co. Kg Band für technische Zwecke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3384789A1 (fr) 2017-04-07 2018-10-10 Max Schlatterer Gmbh&Co. Kg Bande pour la fabrication de cigarettes ou de filtres de cigarettes et procédé de fabrication
EP3396036A1 (fr) 2017-04-24 2018-10-31 Max Schlatterer Gmbh&Co. Kg Bande pour la fabrication de cigarettes ou de filtres de cigarettes
CN109007969A (zh) * 2017-06-08 2018-12-18 上海烟草集团有限责任公司 一种卷烟滤棒

Also Published As

Publication number Publication date
DE102014102120A1 (de) 2015-08-20
DE102014102120B4 (de) 2022-01-27

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