EP3058120B1 - Support de garniture - Google Patents

Support de garniture Download PDF

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Publication number
EP3058120B1
EP3058120B1 EP14786780.8A EP14786780A EP3058120B1 EP 3058120 B1 EP3058120 B1 EP 3058120B1 EP 14786780 A EP14786780 A EP 14786780A EP 3058120 B1 EP3058120 B1 EP 3058120B1
Authority
EP
European Patent Office
Prior art keywords
clothing
fiber sheet
clothing carrier
random fiber
fibers
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.)
Active
Application number
EP14786780.8A
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German (de)
English (en)
Other versions
EP3058120A1 (fr
Inventor
Peter Artzt
Günter Steinbach
Volker Jehle
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.)
Graf und Cie AG
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Graf und Cie AG
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Publication date
Application filed by Graf und Cie AG filed Critical Graf und Cie AG
Publication of EP3058120A1 publication Critical patent/EP3058120A1/fr
Application granted granted Critical
Publication of EP3058120B1 publication Critical patent/EP3058120B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/84—Card clothing; Manufacture thereof not otherwise provided for
    • D01G15/86—Card clothing; Manufacture thereof not otherwise provided for with flexible non-metallic backing

Definitions

  • the present invention relates to a clothing carrier for flexible or semi-rigid trimmings.
  • Flexible and semi-rigid trimmings are used in various areas of textile fiber processing.
  • a flexible or semi-rigid set consists essentially of a clothing carrier and the clothing tips.
  • the clothing tips are formed by wire hooks which are U-shaped.
  • the wire tokens are pierced in a so-called setting process at certain intervals and arrangements through the clothing carrier, the ends of which protrude from the clothing carrier and form the clothing tips.
  • the number of clothing tips per unit area is referred to as peak density.
  • the wire tokens are held in the clothing carrier and have a certain flexibility, depending on their shape and length and the nature of the clothing carrier.
  • Semi-rigid trimmings have the stronger wire hooks than the flexible trimmings.
  • the clothing carrier is stronger in semi-rigid sets, designed in terms of lower flexibility, as in flexible sets.
  • the DE 10 2006 016 832 discloses a clothing carrier of at least two layers, a backsheet and a topsheet. In the lower layer the wire hooks are anchored. The cover layer, however, allows undisturbed swinging of the wire hooks, which is particularly important in an application in the carding.
  • the underlayer is formed of a nonwoven fabric, wherein the material of the nonwoven fabric is different from the material of the cover layer.
  • the CH 636 134 discloses a clothing carrier consisting of a base body with embedded reinforcing inserts. The main body is made of an elastic plastic and the reinforcing inserts made of fabric or fabric layers.
  • a known embodiment of clothing carriers consisting of a plurality of fabric layers is improved in that at least one layer of a nonwoven fabric is inserted.
  • the CH 704 412 discloses a clothing carrier which consists of a nonwoven fabric made from a particular blend of different fiber types.
  • shrink fibers are used, which in the case of a thermal treatment in the production process lead to a solidification of the nonwoven.
  • the GB 2 142 572 A discloses a multi-layer clothing carrier whose surface is provided with a PUR layer, which contributes to the improvement of the permanently elastic properties of the clothing carrier.
  • the invention has for its object to provide a clothing carrier, which has a simple structure and a necessary for the anchoring of wire tokets strength and still allows the necessary mobility of the wire tokens.
  • a clothing carrier for flexible or semi-rigid sets which is a screened by needle punched paneled random web, said the random web is formed of polyester (PES) fibers or polyamide (PA) fibers and impregnated with a polymer.
  • PES polyester
  • PA polyamide
  • a random web is to be understood as meaning a textile fabric made of fibers or filaments which results from the loose juxtaposition and stacking of disordered fibers or filaments. There is no difference in the present invention between the use of staple fibers and continuous filaments.
  • a fleece may consist of longitudinal, longitudinal and transverse, transverse fibers or filaments or of a complete random orientation, wherein in a random orientation the fleece is referred to as a random fleece. If the fibers or filaments are designed in one direction, this is called a unidirectional nonwoven.
  • polyester (PES) fibers or polyamide (PA) fibers have proven to be suitable for random web formation.
  • the fibers are used as staple fibers having a staple length of 30 mm to 80 mm and a fiber fineness of 1.0 dtex to 5.0 dtex.
  • the specific strength is 25 cN / tex to 60 cN / tex.
  • continuous filaments having the same fiber denier and strength can be used.
  • the random web is made of polyamide fibers.
  • Polyamide fibers have a higher moisture absorption capacity compared to polyester fibers, which is also expressed in a higher wettability. This achieves increased adhesion of the polymer used in the impregnation to the individual fiber.
  • the polyamide fiber shows a higher recovery after mechanical stress than the polyester fiber. This means that after a mechanical load, the polyamide fiber returns to its original state rather than the polyester fiber.
  • the fibers used to form the random web are laid on a band as a random nonwoven layer after the carding process and are then stacked on top of one another using a nonwoven cross-bar.
  • a paneled random web formed with preferential direction of the fibers in the transverse direction. Under the transverse direction is to be understood orthogonal to a running direction of the tape on which the random fleece layer is deposited.
  • the paneling doubling
  • the desired basis weight of the random web portion of the clothing wearer is achieved.
  • the random web is composed of at least 30-60 paneling, preferably of 40 paneling.
  • a paneled random fleece is held together only to a limited extent by itself.
  • the random web is subjected to a needling process, thereby achieving a web bonding.
  • a needling can be carried out in one or more passages.
  • it is possible to influence the fiber orientation in the nonwoven by deliberate warping (stretching) of the nonwoven before or after the needling process.
  • defined force-elongation properties of the fleece can be adjusted in the longitudinal and transverse directions.
  • the random mat After needling, the random mat is passed through calender rolls for the first time. Characterized thickness differences are compensated and set a defined thickness or density.
  • the polymer for example latex (acrylonitrile)
  • the polymer is provided in the form of an aqueous dispersion.
  • the proportion of water is 50 to 70 percent, preferably less than 60 percent.
  • the random web is dipped in this dispersion, whereby the random web absorbs the dispersion in its cavities. Subsequently, the random web is pressed by a second calendering for the removal of superfluous dispersion and stabilized and dried in a further step.
  • an infrared field is usually used, thereby preventing sedimentation of the polymer.
  • the stabilization and drying of the random fleece can take place in a heated space through which the random fleece is transported.
  • the random web can be guided on belts, rollers or other suitable means, for example, evacuated drums of a perforated drum dryer, through the heated space.
  • heated rolls can also be used to stabilize and dry the random web.
  • the heating allows the creation of smooth surfaces, respectively, an adjustment of the surface texture of the clothing wearer.
  • the impregnation also results in an increase in density.
  • the stored amount of polymer in the clothing carrier can be determined. This has an effect on the elasticity and the density of the clothing carrier, densities of from 0.4 g / cm 3 to 0.5 g / cm 3 are achieved.
  • the polymer has a proportion of 20 to 60 percent of the weight of the impregnated random web.
  • the impregnated random nonwoven reaches a specific basis weight of more than 1,400 g / m 2 . It has been found that impregnated random webs having a lower specific basis weight result in a reduction of the holding forces of the wire hooks pierced therein and thereby promote a more rapid emptying of the wire hooks.
  • the specific basis weight of the impregnated random mat is more than 1,600 g / m 2 .
  • a structure compensation of at least one surface of the random fleece is provided.
  • laminating the PUR film is connected to the random web.
  • the thermal lamination in which under heat influence and under pressure, the PUR film is applied to the clothing carrier, for example by means of heated rollers.
  • the PUR film used in this case has a thickness of 0.1 mm to 0.5 mm, preferably PUR films are used with a thickness of 0.1 mm to 0.3 mm.
  • This created by the film coating has the advantage that the surface of the clothing wearer is easy to clean and in use lead the lead past the clothing carrier fibers to less clinging.
  • the PUR film contributes to the improvement of the permanently elastic properties of the clothing carrier.
  • the applied to the random web PUR film increases the retention force of the random web with respect to the later used wire hooks.
  • the PUR film is provided with a surface structure.
  • Bands on the PUR film exercise one on the rollers resp. Tapes existing structure transferred to the film.
  • the fiber friction on a structured surface is much lower than on a smooth surface, this being because the actual contact area between a fiber and the surface of the clothing carrier is reduced by the structuring of the surface.
  • the surface of the PUR film has a wave-like structure. The wave-like structure is due to the heated rollers resp. Transfer tapes to the surface of the PUR film during lamination.
  • the surface of the PUR film preferably has a surface roughness Ra of 5 ⁇ m to 30 ⁇ m, more preferably 7 ⁇ m to 20 ⁇ m.
  • the largest height difference Rz is more than 30 ⁇ m.
  • the surface roughness Ra and Rz are to be determined using the stylus method according to the standard DIN EN ISO 4287 (Edition 1998).
  • the stylus used for this purpose is determined by the standard EN ISO 3274 (Edition 1997) in its nominal properties.
  • a powder coating for the structure compensation and adhesion increase is provided before laminating.
  • the powder used is likewise polyester (Co-PES).
  • the powder applied in very small amounts makes it possible to level out production-related unevennesses in the random web and leads to an improvement in the structure compensation to be achieved by laminating.
  • the application of 25 g / m 2 to 30 g / m 2 powder of Co-PES has been found to be particularly suitable.
  • the applied powder also serves as a bonding agent and contributes to a better connection between the random web and the PUR film.
  • the powder preferably has a fineness of 200 ⁇ m to 500 ⁇ m.
  • one or more nonwoven layers is introduced into the clothing carrier, which are designed as unidirectional nonwovens for influencing the flexibility.
  • the clothing carrier becomes more rigid against mechanical stresses in directions parallel to the unidirectional direction.
  • the flexibility of the clothing tips in the direction of oscillation of the clothing tips can be influenced.
  • the random fleece is immersed in an aqueous solution of latex, whereby the random fleece is soaked with the impregnating agent.
  • the excess amount of the aqueous solution is squeezed off by a subsequent second calendering and adjusted the final thickness of the random web.
  • the currently used clothing carrier have a thickness of 3 mm to 4 mm. However, other thicknesses of clothing carriers are possible.
  • the clothing carrier is used to make a flexible or semi-rigid garnish for processing textile fibers.
  • wire hooks are pricked through the clothing carrier in a setting process.
  • the wire hooks form on the top of the clothing the clothing tips.
  • the wire hooks are arranged in a distance corresponding to the later requirements of the clothing.
  • the number of clothing peaks per surface is referred to as peak density. Due to mechanical conditions of the machines used in the production of trimmings the maximum achievable in a setting operation peak density is limited. A minimum distance between the wire hooks can not be undershot due to the wire geometry and the construction of the setting tools.
  • FIG. 1 a known clothing carrier 1 is shown with inserted flexible clothing 2.
  • the clothing carrier 1 is composed of several woven textile layers 3, which are held together by binders or by vulcanization with rubber or synthetic rubber.
  • a rubber layer 5 is present as a cover layer 5.
  • the pierced through the clothing carrier 1 wire hook 4 are held in the multi-layer fabric 3.
  • the wire hooks 4 are heavily stressed during operation and are anchored accordingly in the multi-layered clothing carrier 1.
  • Flexible sets 2, as well as semi-rigid sets are usually made in strips with a certain width b and a thickness d and then used in so-called lids or mounted on rollers.
  • FIG. 2 an embodiment of the clothing carrier according to the invention is shown schematically.
  • the clothing carrier 1 is shown in the illustration as a single layer with a coating 12.
  • the clothing carrier 1 is a paneled random web of PES fibers (10).
  • the paneled random fleece was consolidated by needling and brought to a certain thickness by a first calendering.
  • a polymer 11 was introduced into the clothing carrier 1.
  • a coating 12 is applied over the entire width b by laminating with a PUR film.
  • the upper side corresponds to the side on which later the wire hooks protrude and form the clothing.
  • the applied coating 12 serves not only to improve the surface finish of the clothing carrier 1, so that the adhesion of dust and dirt can be reduced, but also to improve the permanently elastic properties of the clothing wearer.
  • the clothing carrier are usually produced as endless webs with a certain length and equipped by the setting process with wire hooks to form the clothing tips. After completion of the entire production process, the clothing carriers equipped with wire hooks are cut into ready-to-use strips of width b.
  • the width b depends on the intended use between 15 mm and 150 mm.

Claims (7)

  1. Support de garniture (1) pour garnitures souples ou semi-rigides, dans lequel le support de garniture (1) est un non tissé à fibres embrouillées empilé, consolidé par aiguilletage (21), dans lequel le non tissé à fibres embrouillées est formé à partir d'une fibre (10) de polyester (PES) ou de polyamide (PA) et imprégné avec un polymère (11), caractérisé en ce qu'une compensation structurelle d'au moins une surface du non tissé à fibres embrouillées, pour égaliser des rugosités dans le non tissé à fibres embrouillées, dues à la fabrication, est prévue par contrecollage avec un film (12) de polyuréthane (PUR), dans lequel, avant le contrecollage, un revêtement en poudre est prévu sur le non tissé à fibres embrouillées pour compenser la structure et pour augmenter l'adhérence entre le non tissé à fibres embrouillées et le film de PUR (12), et en ce que le non tissé à fibres embrouillées est composé d'au moins 30 à 60 empilages.
  2. Support de garniture (1) selon la revendication 1, caractérisé en ce que les fibres de PES ou de PA (10) présentent une longueur de coupe de 30 mm à 80 mm et une finesse de fibres de 1,0 dtex à 5,0 dtex.
  3. Support de garniture (1) selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les fibres de PES ou de PA (10) présentent une résistance spécifique de 25 cN/tex à 60 cN/tex.
  4. Support de garniture (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le non tissé à fibres embrouillées imprégné présente une densité de 0,4 g/cm3 à 0,5 g/cm3.
  5. Support de garniture (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le film de PUR (12) présente une épaisseur de 0,1 mm à 0,5 mm, de préférence de 0,2 mm à 0,4 mm.
  6. Procédé de fabrication d'un support de garniture (1) pour garnitures souples ou semi-rigides (2), dans lequel
    - un non tissé à fibres embrouillées empilé est formé à partir de fibres de polyester (PES) ou de fibres de polyamide (PA) (10), le non tissé à fibres embrouillées étant assemblé à partir d'au moins 30 à 60 empilages,
    - le non tissé à fibres embrouillées empilé est soumis à un aiguilletage,
    - le non tissé à fibres embrouillées aiguilleté est soumis à un premier calandrage,
    - le non tissé à fibres embrouillées aiguilleté et calandré une première fois est imprégné avec un polymère (11),
    - après imprégnation, le non tissé à fibres embrouillées est appliqué avec une épaisseur homogène (d) par un deuxième calandrage,
    - un revêtement en poudre est appliqué sur le non tissé à fibres embrouillées pour compenser la structure et pour augmenter l'adhérence,
    - une couche (12) avec un film de polyuréthane (PUR) est appliquée au non tissé à fibres embrouillées par contrecollage sur le revêtement en poudre.
  7. Garniture pour le traitement de fibres textiles avec un support de garniture (1) et des pointes de garniture (2), les pointes de garniture (2) étant formées par des crochets de fil métallique (4) piqués à travers le support de garniture (1) au cours d'une opération de placement, caractérisée en ce que le support de garniture (1) est réalisé selon l'une quelconque des revendications 1 à 5.
EP14786780.8A 2013-10-15 2014-10-09 Support de garniture Active EP3058120B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01755/13A CH708682A1 (de) 2013-10-15 2013-10-15 Garniturträger.
PCT/CH2014/000147 WO2015054798A1 (fr) 2013-10-15 2014-10-09 Support de garniture

Publications (2)

Publication Number Publication Date
EP3058120A1 EP3058120A1 (fr) 2016-08-24
EP3058120B1 true EP3058120B1 (fr) 2019-09-25

Family

ID=51786755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14786780.8A Active EP3058120B1 (fr) 2013-10-15 2014-10-09 Support de garniture

Country Status (6)

Country Link
US (1) US10392735B2 (fr)
EP (1) EP3058120B1 (fr)
CN (1) CN105814247B (fr)
BR (1) BR112016007175A2 (fr)
CH (1) CH708682A1 (fr)
WO (1) WO2015054798A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710221A1 (de) * 2014-10-09 2016-04-15 Graf + Cie Ag Garnitur für die Bearbeitung von textilen Fasern
US10316443B2 (en) * 2015-04-17 2019-06-11 Auburn University Composite braided open structure without inter-yarn bonding, and structures made therefrom
CN107338511A (zh) * 2016-09-28 2017-11-10 桐乡守敬应用技术研究院有限公司 一种针布
JP6967258B2 (ja) * 2016-11-25 2021-11-17 株式会社荒木製作所 針布の製造方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
CH137714A (fr) * 1928-12-13 1930-01-31 Berjonneau Jacqueau & Cie Procédé pour la fabrication d'un support pour garniture de cardes et support obtenu selon ce procédé.
JPS5779170U (fr) * 1981-09-21 1982-05-15
GB2142572A (en) * 1983-05-30 1985-01-23 Kanai Hiroyuki Foundation for card clothing
DE102010041256A1 (de) * 2010-09-23 2012-03-29 Evonik Degussa Gmbh Prepregs auf der Basis lagerstabiler reaktiven oder hochreaktiven Polyurethanzusammensetzung mit fixierter Folie sowie die daraus hergestellten Composite-Bauteil

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DE1469266A1 (de) * 1965-07-22 1968-12-12 Basf Ag Verfahren zur Herstellung von Faservliesen
DE2013912A1 (en) * 1969-03-24 1970-10-01 Monsanto Co., St. Louis, Mo. (V.St.A.) Compound fabric capable of compression to - double density
US3533902A (en) 1969-05-29 1970-10-13 Grace W R & Co Impregnated fibrous materials and process of making the same
DE7414314U (de) 1973-04-26 1975-04-03 The English Card Clothing Co Ltd Kratzenbelag für Kardenwalzen
GB1521001A (en) 1976-04-06 1978-08-09 English Card Clothing Card-clothing
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JPS59228024A (ja) * 1983-06-08 1984-12-21 Kanai Hiroyuki 針布用基布
JPS60259633A (ja) * 1984-05-31 1985-12-21 Hiroyuki Kanai 針布用基布
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US5891547A (en) * 1997-02-04 1999-04-06 Precision Fabrics Group, Inc. Needle punch nonwoven component for refastenable fastening device
US7491438B2 (en) * 2003-07-11 2009-02-17 Milliken & Company Needled nonwoven textile composite
JP4419549B2 (ja) * 2003-07-18 2010-02-24 東レ株式会社 極細短繊維不織布および皮革様シート状物ならびにそれらの製造方法
CN2760062Y (zh) * 2004-12-24 2006-02-22 黄金山 一种弹性针布
DE102006016832B4 (de) * 2006-04-07 2021-04-15 Trützschler GmbH & Co Kommanditgesellschaft Garniturträger für einen Kardendeckelbelag
WO2008144950A1 (fr) * 2007-06-01 2008-12-04 Maschinenfabrik Rieter Ag Garniture flexible
CH704412A1 (de) * 2011-01-31 2012-07-31 Graf & Co Ag Garniturträger.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH137714A (fr) * 1928-12-13 1930-01-31 Berjonneau Jacqueau & Cie Procédé pour la fabrication d'un support pour garniture de cardes et support obtenu selon ce procédé.
JPS5779170U (fr) * 1981-09-21 1982-05-15
GB2142572A (en) * 1983-05-30 1985-01-23 Kanai Hiroyuki Foundation for card clothing
DE102010041256A1 (de) * 2010-09-23 2012-03-29 Evonik Degussa Gmbh Prepregs auf der Basis lagerstabiler reaktiven oder hochreaktiven Polyurethanzusammensetzung mit fixierter Folie sowie die daraus hergestellten Composite-Bauteil

Also Published As

Publication number Publication date
US20160273138A1 (en) 2016-09-22
CH708682A1 (de) 2015-04-15
CN105814247B (zh) 2019-02-05
BR112016007175A2 (pt) 2017-08-01
WO2015054798A1 (fr) 2015-04-23
CN105814247A (zh) 2016-07-27
US10392735B2 (en) 2019-08-27
EP3058120A1 (fr) 2016-08-24

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