EP0822283A2 - Matériau non-tissé et dispositif de fabrication - Google Patents

Matériau non-tissé et dispositif de fabrication Download PDF

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Publication number
EP0822283A2
EP0822283A2 EP97108066A EP97108066A EP0822283A2 EP 0822283 A2 EP0822283 A2 EP 0822283A2 EP 97108066 A EP97108066 A EP 97108066A EP 97108066 A EP97108066 A EP 97108066A EP 0822283 A2 EP0822283 A2 EP 0822283A2
Authority
EP
European Patent Office
Prior art keywords
filaments
type
filament
belt
nonwoven
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Withdrawn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
EP97108066A
Other languages
German (de)
English (en)
Other versions
EP0822283A3 (fr
Inventor
Detlef Barbier
Engelbert Löcher
Ararad Dr. Emirze
Norbert Goffing
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg 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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0822283A2 publication Critical patent/EP0822283A2/fr
Publication of EP0822283A3 publication Critical patent/EP0822283A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/147—Composite yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/153—Mixed yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the invention relates to a spunbonded nonwoven, which in the course of its Different cross-sectional contents of type A bicomponent fibers and B.
  • Such a spunbonded nonwoven is known as a material from JP-A-Patent 435 28 61 for sacks: the spunbonded non-woven fabric consists of two types A and B of long, conjugated multi-component filaments.
  • Filament type A exists from the polymer components (a1) and (a2), the latter one around 30 ° C. has a higher melting point than (a1).
  • Filament type B consists of the polymer components (b1) and (b2), component (b1) being around 20 ° C. higher melting point than component (a1) and being the component (b2) a melting point which is more than 30 ° C. higher than that of component (b1) having.
  • the nonwoven also has a four-layer structure in cross section, wherein the individual layers differ in that the first only filaments of type A, the second and third layers contain filament types A and B with a higher proportion of A in the second and a higher proportion filament type B in the third layer, while the fourth Layer consists only of type B filaments.
  • the object of the invention is to provide a spunbonded nonwoven fabric made of core / sheath bicomponent filaments with a hard core and with a lower temperature to indicate as this core melting coat, the inside of which, as a result of different distribution of these filaments in the nonwoven cross section, softer or is designed to be harder than at least one of its outwardly facing ones Surfaces.
  • These differences should not be reflected in a layer structure express with concrete phase boundaries to avoid the risk of delamination of the individual layers, e.g. after heat treatment during dyeing and vapors, or due to mechanical stress, e.g. when deforming, to exclude. Therefore, a very soft, flowing gradation of the Binding component concentration and thus the filament binding or adhesiveness can be generated over the cross-sectional profile of the nonwoven.
  • the invention further relates to a for producing such a spunbonded nonwoven suitable device which, in contrast to the prior art Technology where several separate process steps for Manufacture and required to connect the individual layers of the nonwoven and each of these stages is a separate, customized arrangement of Has spinneret bars, a single device with correspondingly arranged Spinneret beam is sufficient, and this arrangement of those on conventional devices for the production of monofilaments equal.
  • Fig. 1 is considered.
  • Filament types a, b shown as used according to the invention.
  • the core is made of polyethylene terephthalate, with 2 the jacket from the binding Component called. Filaments with such cross sections and their Spinning through nozzles from the melt are known per se and not Subject of the invention.
  • binding components 2 are copolymers of terephthalic acid or dimethyl terephthalate, isophthalic acid, adipic acid, ethylene glycol, butanediol, and homopolymers such as polybutylene terephthalate, polyamides and polyolefins the homologous range from polyethylene to polybutylene.
  • the weight ratio of the jacket components is 2a: 2b according to the invention from 1: 3 to 1:10, in each case with the same titer of the filaments of type a and b.
  • the invention relates to a spunbonded nonwoven fabric, which consists of these two Types a and b of core / sheath filaments exist and which over his Cross-sectional profile different contents of these bicomponent filaments , the content of type b filaments between 15 and 70 % By weight, based on the weight of the respective cross-sectional plane of the nonwoven.
  • a large number of spunbonded nonwovens can thus be produced, and basis weights of 10 to 500 g / m 2 can be produced as desired.
  • the rule must be observed become that softer contents of type b bicomponent filaments and more flexible nonwoven surfaces, while in extreme cases the Presence of this type of filament to 70 wt .-% an internal stability of the Nonwoven surface is achieved, which they as a carrier and stabilizer of the whole Nonwoven construction makes it suitable. These latter have nonwoven layers also a barrier function against the passage of fluid media, what Filtering applications is important; the binding jacket components of the individual filaments have flowed into one another and form one for the fluid Barrier.
  • a preferred variant of the invention is that one to the outside facing surface of the spunbonded nonwoven a higher proportion of the filament Type b has and is both hard and hot-adhesive compared to the opposite surface facing the other outside, which is soft with a lower proportion of these filaments and only in interrupted ones Surface areas has hot-melt adhesive properties.
  • the hot-tack ability with high proportions of type B filaments is another Advantage of the inventive design of the spunbonded nonwoven and important especially for textile applications, e.g. Stiffening inserts.
  • the Cross-section of such a nonwoven fabric has a constant gradient of percentage of bicomponent filaments of type a or b and hence the hardness from one surface to another.
  • the gradient towards the hard, binding component 2 is sufficient Surface prevents this when foam coating such carpets Penetration of the coating mass from the soft surface side up to to the pile fibers. This gradient also indirectly controls the tear resistance of the finished carpet.
  • the voluminous and soft nonwoven side promotes the good one Pimples and thus anchoring of the carpet fibers in the nonwoven cross section when tufting.
  • the tufting needles can be inserted into the nonwoven fabric from the hard side penetrate without loosened fibers from it in the needles and disrupt the tufted image.
  • the fourth advantage for the application for tufted carpets is that in is able to with low carpet fiber weights (pile weights) and carpet fiber lengths (Pole heights) to work without changing the surface image (Pole image) through fibers detached from the nonwoven composite is caused.
  • Another preferred embodiment of the invention relates to a spunbonded nonwoven, which has two soft, few filaments of type b, has outer surfaces compared to its inner cross-sectional areas which are harder in this regard, since there are a larger number of bicomponent filaments b is present.
  • the invention also includes a spunbond nonwoven variant in which the a relatively high bicomponent filament proportion on each of the two outwardly facing surfaces type b and therefore have a hard consistency exhibit.
  • the inner cross-sectional areas are against it, with lower ones Filament b proportions, very soft.
  • the invention also relates to a device for producing the first product claim characterized spunbonded nonwoven.
  • this device has one to forty rectangular spinneret plate (s) 3 or round spinning disc (s) 4, which over a conventional stretching device (not shown) for the Spinning holes 5, 6 leaving filaments is (are) arranged. Under the stretching device the spun filaments fall onto a transport device, the essential component of which is a horizontally and linearly moving catch belt 7, on the surface of which the filaments hit and to Spunbonded nonwoven.
  • the spinning holes 5 serve to discharge the core / sheath filaments of type a, the spinning holes 6 the discharge of the core / sheath filaments of type b, respectively from their melting. Both types of spinning holes 5, 6 are on each spinneret plate 3 or spinning disc 4 available.
  • the device is for this Purpose designed so that the projection of all spin holes 5, 6 of the inserted Spinning plates 3 or spinning disks 4 in their entirety on the Level of the collecting belt 7 the concentration curve of the filament mixture in the vertical cross section of the nonwoven.
  • FIG. 3 shows three in the upper half with their Longitudinal axis arranged parallel to the running direction of the collecting belt 7 rectangular spinneret plates 3.
  • the arrangement 3a of the spinning holes 5, 6 on the spinneret plate 3 leads to a spunbonded nonwoven whose one surface, which is first deposited on the belt 7 increases filaments of the Type a from the spinning holes 5 contains and is very soft.
  • the collecting belt 7 facing surface higher proportions of type b bicomponent filaments from the spinning holes 6 covered.
  • the other surface of the spunbonded nonwoven is created which mostly contains filaments of type b and a corresponding one Hardness and rigidity.
  • a spunbonded nonwoven is created with a catch belt facing, mostly containing type b bicomponent filaments Surface created by the spinning holes 6, which in the upper in the drawing Part are arranged on the spinneret plate 3 in the plurality.
  • the inner cross-sectional areas of the nonwoven are increased from type a filaments formed (middle part of the spinneret plate 3, spinning holes 5). Due to continuous, increasing depletion of type a filaments finally the second surface.
  • a spunbonded nonwoven can be built up with a device according to FIG. 3c, which on the surface facing the collecting belt 7 filaments of Type a in an amount up to 85 wt .-% and in which further Cross-sectional profile up to the inside the filament portion of the Type b grows up to 70% by weight.
  • Fig. 3d is considered in this context, which of 3a corresponds, with only the spinneret plate 3 here is aligned transversely to the running direction of the catch belt 7 and their The longitudinal axis corresponds to the length of the nonwoven fabric width to be produced.
  • This Variant is shown again in FIG. 2a and there, above, referred to as a3.
  • FIG. 2b Another variant of the device looks obliquely to the transport direction of the Harness 7, staggered in a row parallel to its level arranged, rectangular spinneret plates 3, as in two variants b1 and b2 is shown in Fig. 2b. With this graduation they are also the ones Spinning holes 5, 6 leaving filaments transversely to their direction of fall and transversely to lead to the running direction of the collecting belt 7 pivoting through air currents, to maintain a constant filament blend within each level of the nonwoven to obtain.
  • the invention can therefore on existing systems by the lowest possible Conversion measures are carried out, whether these systems for cross or Spinneret plates aligned along the direction of the collecting belt or spinning discs are designed or whether a correspondingly oblique arrangement of spinneret plates the concept of the available device underlying.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nonwoven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP97108066A 1996-07-29 1997-05-17 Matériau non-tissé et dispositif de fabrication Withdrawn EP0822283A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19630524 1996-07-29
DE1996130524 DE19630524C1 (de) 1996-07-29 1996-07-29 Spinnvliesstoff und Vorrichtung zu dessen Herstellung

Publications (2)

Publication Number Publication Date
EP0822283A2 true EP0822283A2 (fr) 1998-02-04
EP0822283A3 EP0822283A3 (fr) 1998-04-15

Family

ID=7801150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97108066A Withdrawn EP0822283A3 (fr) 1996-07-29 1997-05-17 Matériau non-tissé et dispositif de fabrication

Country Status (6)

Country Link
EP (1) EP0822283A3 (fr)
JP (1) JP2813584B2 (fr)
KR (1) KR980009583A (fr)
DE (1) DE19630524C1 (fr)
MX (1) MX9705699A (fr)
PL (1) PL321390A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6207599B1 (en) 1998-08-27 2001-03-27 Akzo Nobel Nv Nonwoven backing and carpet comprising same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004036099B4 (de) * 2004-07-24 2008-03-27 Carl Freudenberg Kg Mehrkomponenten-Spinnvliesstoff, Verfahren zu seiner Herstellung sowie Verwendung der Mehrkomponenten-Spinnvliesstoffe
DE102006013170A1 (de) * 2006-03-22 2007-09-27 Irema-Filter Gmbh Plissierbares Vliesmaterial und Verfahren und Vorrichtung zur Herstellung derselben
JP2016160558A (ja) * 2015-03-03 2016-09-05 日本ノズル株式会社 不織布製造装置、これにより製造される不織布、並びに不織布製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1560800A1 (de) * 1966-02-10 1971-01-07 Lutravil Spinnvlies Verfahren und Vorrichtung zur Herstellung von Mischvliesen durch Schmelzspinnen
CH446605A (de) * 1966-02-11 1967-11-15 Freudenberg Carl Fa Verfahren zur Herstellung von Mischvliesen durch Schmelzspinnen
US3940302A (en) * 1972-03-02 1976-02-24 Imperial Chemical Industries Limited Non-woven materials and a method of making them
JPH0639739B2 (ja) * 1985-07-03 1994-05-25 東レ株式会社 立毛シ−トおよびその製造方法
DE3642089A1 (de) * 1986-12-10 1988-06-23 Freudenberg Carl Fa Teppichtuftingtraeger aus spinnvliesstoff
US4830904A (en) * 1987-11-06 1989-05-16 James River Corporation Porous thermoformable heat sealable nonwoven fabric
JP3048400B2 (ja) * 1991-04-11 2000-06-05 ユニチカ株式会社 不織布
JP3043099B2 (ja) * 1991-05-27 2000-05-22 ユニチカ株式会社 不織布およびその製造方法
JPH0841770A (ja) * 1994-07-25 1996-02-13 Unitika Ltd 複合構造の不織布およびその製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6207599B1 (en) 1998-08-27 2001-03-27 Akzo Nobel Nv Nonwoven backing and carpet comprising same

Also Published As

Publication number Publication date
JPH10110373A (ja) 1998-04-28
MX9705699A (es) 1998-02-28
EP0822283A3 (fr) 1998-04-15
KR980009583A (ko) 1998-04-30
DE19630524C1 (de) 1998-03-12
JP2813584B2 (ja) 1998-10-22
PL321390A1 (en) 1998-02-02

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