EP0764733A1 - Textile Bekleidung für Sessel - Google Patents

Textile Bekleidung für Sessel Download PDF

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Publication number
EP0764733A1
EP0764733A1 EP96490034A EP96490034A EP0764733A1 EP 0764733 A1 EP0764733 A1 EP 0764733A1 EP 96490034 A EP96490034 A EP 96490034A EP 96490034 A EP96490034 A EP 96490034A EP 0764733 A1 EP0764733 A1 EP 0764733A1
Authority
EP
European Patent Office
Prior art keywords
fabric
titration
ply
foam
knitted fabric
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Withdrawn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
EP96490034A
Other languages
English (en)
French (fr)
Inventor
Jean-François Forest
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.)
Delcar SA
Original Assignee
Delcar SA
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
Priority claimed from FR9511233A external-priority patent/FR2738848B1/fr
Priority claimed from FR9514506A external-priority patent/FR2741637B1/fr
Application filed by Delcar SA filed Critical Delcar SA
Publication of EP0764733A1 publication Critical patent/EP0764733A1/de
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/123—Patterned fabrics or articles characterised by thread material with laid-in unlooped yarn, e.g. fleece fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/126—Patterned fabrics or articles characterised by thread material with colour pattern, e.g. intarsia fabrics
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/022—Moisture-responsive characteristics hydrophylic
    • 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
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0112—One smooth surface, e.g. laminated or coated
    • 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
    • D10B2505/00—Industrial
    • D10B2505/08—Upholstery, mattresses
    • 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
    • D10B2505/00—Industrial
    • D10B2505/12—Vehicles

Definitions

  • the present invention relates to the field of seats, in particular automobile seats, which are covered with a textile covering. It relates more particularly to a textile covering based on knitting, in particular velor knits, or of double-sided fabric whose bottom or back respectively is provided with a comfort or protective undercoat.
  • Textile coverings for seats generally have a foam as an underlay which is attached to the bottom ply of the knitted fabric or to the reverse side of the double-sided fabric by buckling, according to the well-known foaming technique.
  • the foam has a determined thickness, generally one or more millimeters with, in addition, an external lining which constitutes the reverse side of the covering.
  • the foam has a reduced thickness and adheres to an impermeable film which constitutes the external face of the coating.
  • the outer film serves as a barrier to the materials introduced into the mold for the production of the seat in situ.
  • the foam is a microcellular foam which acts as a barrier.
  • the aim set by the applicant is to provide a textile seat covering which overcomes the aforementioned drawbacks while significantly improving the capacity for absorbing and removing moisture produced by the user.
  • the coating of the invention which comprises on the one hand a fabric, having a right side and a reverse side, and on the other hand an underlayer secured to the reverse side of the fabric.
  • the fabric comprises a so-called transfer ply which does not appear on the face side and which has transverse continuity, that is to say in a direction parallel to the underlayer.
  • the transfer ply is produced from at least one first multi-strand synthetic yarn, each unit strand of which has a given first count, and the right side of the fabric is produced from at least one second synthetic yarn.
  • the humidity produced by the user is absorbed and diffused through the threads forming the right side of the fabric, until it reaches the transfer sheet.
  • the humidity is somehow pumped by the transfer ply and migrates transversely with respect to the wires of the face side according to the plane of the transfer sheet, parallel to the sub-layer.
  • This result is all the more surprising since the underlay is attached to the reverse side of the fabric and one would have expected that the presence of this underlay would prevent the diffusion of moisture. .
  • the ratio between the second and the first titration is between 1.8 and 3.5.
  • the first and the second son have the same overall titration, differing only in the number of unit strands which is lower for the second wire compared to the first in the proportion of the titration ratio of at least 1.5.
  • the number of unit strands was 32.48 or 68 for the second yarn forming the face side, and respectively 96.96 or 128 for the first wire forming the transfer ply.
  • the fabric may in particular be a knitted fabric, made on a circular knitting loom or else on a chain type loom, single or double needle bed. It can be a flat Jacquard knit or one with reliefs. It can also be knitting with insertion of long wefts, over the entire width of the knitting, between the constituent yarns of the right and wrong sides of the knitting. In the latter case, the transfer ply may consist either of weft threads or of weft threads and also of threads constituting the reverse side of the knitted fabric which does not appear on the right side.
  • the fabric is preferably a velvet knit, consisting of a base ply, on which are looped, forming the pile of velvet after shaving.
  • it is the base ply which acts as both the transfer ply and the reverse side of the fabric, while the loops, forming the pile of the velvet, act as the right side of the fabric.
  • the number of unit strands is preferably 32.48 or 68 for the loop thread and respectively 96.96 or 128 for the bottom thread.
  • the fabric can also be a double-sided fabric.
  • the sub-layer is preferably a foam which is joined to the reverse side of the fabric by buckling. It is for example a foam at least one millimeter thick comprising an outer lining, itself secured to the foam by buckling. It may also be a foam having a thickness of less than one millimeter secured to the reverse side and to an impermeable film for buckling protection.
  • the textile covering 1, specially adapted for car seats, shown in FIG. 1, comprises three successive layers.
  • the first layer is a velvet knit 2 that is obtained in a conventional manner on a loom in circular knitting or warp knitting machine, with a plurality of son which are meshed together to form a material having a given volume, a place two facing and reverse side 2 b .
  • the second layer 3 is a polyurethane foam and the third layer 4 is a lining, for example a blocked mesh.
  • the assembly of the three layers 2, 3, 4 is carried out according to the foaming technique, by surface buckling of the foam 3 and application under pressure of the face of the corresponding layer 2, 4 having to be secured with the foam 3.
  • the buckling there is a localized melting on the surface of the foam which acts as a sort of adhesive for the attachment either of the reverse side 2b of the knitted fabric 2 or for the lining 4.
  • the knitted fabric 2 comprises a so-called transfer ply 7 which does not appear on the right side 2a of the knitted fabric 2 and which has transverse continuity in a direction DD 'which is parallel to the general direction underlay 3.
  • the threads 5 form the right side 2 a of the knitted fabric 2 - hereinafter called straight threads - and the threads 6 constituting the transfer ply 7 - hereinafter called transfer threads - are made of a multifilamentary synthetic material, each unitary strand of which has a differentiated titration, the titration of the place threads 5 being in a ratio of at least 1.5 with respect to the titration of the transfer threads 6.
  • the effect produced by the titration difference between the unitary strands of the face yarns 5 and the transfer yarns 6 consists in an increase in the capillary effect in the presence of moisture.
  • moisture appears at the place 2 face knit 2 it is absorbed by the son of place 5, moisture by capillary progressing inward knitting 2.
  • the humidity which comes to accumulate inside the knitted fabric 2 is in a way pumped by the transfer ply 7, the capillarity of the threads 6 constituting said ply 7 being greater than that of the place threads 5.
  • FIG 2 there is shown schematically a second embodiment of textile covering for seats 9 also comprising three layers.
  • the first layer 10 is a knit of the same type as knit 2 of the first example.
  • the second layer 11 is a foam of much thinner thickness than that 3 of the first example.
  • the third layer 12 is a plastic film, for example made of polyurethane.
  • the foam 11 is generally called the foam zero. In reality it is a thin foam which, after buckling, is further reduced substantially so that the adhesion between the reverse side 10 b and the film 12 is almost by point-to-point bonding, using residual foam.
  • the foam 3 of the coating 1 of the first example was of the order of 2.5 mm, while the foam 11 of the second example was before foaming, of the order of 1 millimeter.
  • the values of the titrations of the constituent yarns of the face side and of the constituent yarns of the transfer ply have been given for three exemplary embodiments, as well as for each example the value of the titration ratio of the unitary strands of the place wires compared to that of transfer wires.
  • the place wires and the transfer wires have globally identical titrations and differ only in the number of unit strands per wire, this number of strands itself being in the corresponding titration ratio, according to the invention .
  • the first example of knitting which is illustrated by the diagram in FIG. 3 is a Jacquard knitting with three colors, flat, knitted on a circular double needle bed.
  • the yarns from the falls A, B, C, E, F, G which knit on the plate and in the cylinder of the loom, are in particular multifilament yarns 310dtex 58 strands or 240dtex 64 strands while the falling threads D and H, which constitute the reverse side of the knit, with homogeneous transverse continuity, are multifilaments of 167dtex 96 strands.
  • the titration ratio is 3.08 in the first case and 2.16 in the second case.
  • the knitting is a three-color Jacquard in relief, obtained on a double needle circular knitting machine.
  • the knit shown in the diagram illustrated in Figure 5 is a Jacquard two colors single needle.
  • the drop wires A, B, D and E are for example multi-strand 310dtex 58 strands or 240dtex 64 strands while the drop wires C and F are multi-strand 167dtex 96 strands in two ends.
  • the fourth knit which is the subject of the diagram illustrated in FIG. 6 is a two-colored Jacquard in double wall relief, with weft insertion.
  • the drop wires A to H are multi-strand 167dtex 32 strands and the two wefts T 1 and T 2 incorporated between the plate and the quilting cylinder are multi-strand 167dtex 96 strands in three or four ends.
  • the diffusion of the moisture coming from the face side of this knitted fabric is captured by the transfer ply which is constituted by all of the weft threads. This moisture therefore remains trapped between the two sides, right side and back side of the knitted fabric.
  • the falls A, B, C, E, F, G are multi-strand 167dtex 32 strands while the two wefts T 1 and T 2 incorporated between the plate and the quilting cylinder are multi-strand 167dtex 96 strands in three or four ends and the drop wires D and H are multi-strand 167dtex 96 strands in two ends.
  • the transfer ply consists of both the weft threads T 1 and T 2 and the drop threads D and H.
  • the textile fabric which constitutes the first layer of the textile covering 13 is a knitted fabric velvet 14 which is conventionally obtained on a circular knitting loom with loop threads 15 which are meshed on a base ply 16.
  • the mesh part 16a of the base ply 16 passes under the part mesh 15a of the loop threads 15.
  • one or more shaves of the loop threads 15 were carried out so as to eliminate the upper end portions of the loops and possibly the floats in the case of a Jacquard effect. and to get the pile short of velvet.
  • the second 17 and third 18 layers are similar to those described in the first example, as is the assembly of the three layers 14, 17 and 18, the foam of the second layer 17 hanging mainly on the mesh part 16a of the base ply 16, which constitutes the reverse side of the velvet knit 14.
  • the loop wires 15 and the wires constituting the base ply 16 are made of a multifilament synthetic material, each unitary strand of which has a differentiated titration, the titration of the loop wires 15 being in a ratio of at least minus 1.5 with respect to the titration of the bottom yarns 19 constituting the bottom ply 16.
  • This bottom ply 16 acts as a transfer ply: it does not appear on the right side of the velvet knit, constituted by short pile velvet and has a transverse continuity in the direction DD 'which is parallel to the general direction of the underlay 17.
  • the loop threads 15 and the bottom threads 19 provide the same capillary effect, due to the difference in titration between their unit strands, as that which was described previously for the place son 5 and the transfer son 6 of the first example.
  • FIG. 2 there is shown schematically a fourth embodiment of a textile covering 19 for seats, similar in structure to that of the second example illustrated in FIG. 2.
  • the first layer 21 is a velvet knit of the same type as the velvet knit 14 from the third example.
  • the second layer 22 is a foam of much thinner thickness than that 17 of the third example.
  • the third layer 23 is a plastic film, for example in polyurethane.
  • the joining of the mesh part 24a of the base ply 24 of the velvet knit 21 with the second layer 22 is also carried out by the foaming technique, of the zero foam type.
  • the values of the titrations of the loop wires and of the bottom wires have been plotted for ten exemplary embodiments, as well as for each example the value of the titration ratio of the unit strands of the loop wires relative to that background wires.
  • the overall titration of the loop threads and of the bottom threads are identical and differ only in the number of unit strands per thread, this number of strands itself being in the corresponding titration ratio.
  • the textile fabric is not necessarily a knitted fabric, but can also be a double-sided fabric, produced on suitable looms, the threads of the reverse side of which constitute the transfer ply, not found on the right side.
  • the technical effect provided by the characteristic of the invention appears immediately when a quantity of the textile covering is dropped determined water.
  • the water forms a stain having a determined surface.
  • This task disappears only very gradually by simple evaporation.
  • the task initially formed extends over a much larger surface, of the order of several times the surface of the initial task; when touched, after a few minutes, it is very difficult to perceive moisture, while the stain on the traditional coating is constantly wet until it disappears.
  • the present invention is not limited to the embodiments which have just been described by way of non-exhaustive examples, in particular, in the case where the covering is intended for the production of a seat in situ, the sub- layer may also be a microcellular foam having a thickness of about 2.5 to 10 mm which acts as a barrier to the materials introduced into the mold for the manufacture of the seat in situ. Furthermore, even if the preferred application of the textile covering of the invention relates to the car seat, this is not limiting. The textile covering of the invention can find other outlets, in which the property of absorption and diffusion of moisture by differentiated capillarity will be emphasized.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
EP96490034A 1995-09-19 1996-09-19 Textile Bekleidung für Sessel Withdrawn EP0764733A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9511233A FR2738848B1 (fr) 1995-09-19 1995-09-19 Revetement textile pour siege a base de tricot velours
FR9511233 1995-09-19
FR9514506A FR2741637B1 (fr) 1995-11-29 1995-11-29 Revetement textile pour siege
FR9514506 1995-11-29

Publications (1)

Publication Number Publication Date
EP0764733A1 true EP0764733A1 (de) 1997-03-26

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ID=26232223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96490034A Withdrawn EP0764733A1 (de) 1995-09-19 1996-09-19 Textile Bekleidung für Sessel

Country Status (1)

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EP (1) EP0764733A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045577A1 (de) 2015-01-16 2016-07-20 ALSTOM Transport Technologies Gewirktes textiles material, insbesondere zur realisierung eines sitzüberzugs, insbesondere für ein schienenfahrzeug
CN108866776A (zh) * 2018-08-15 2018-11-23 三六度(中国)有限公司 一种单向导湿全涤格子提花布针织面料的制备方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2080741A7 (de) * 1970-02-25 1971-11-19 Degussa
CH547169A (fr) * 1973-06-07 1974-03-29 Daluc Holding Sa Procede de fabrication de textiles formables destines a la fabrication d'articles en mousse et textile formable obtenu par ce procede.
US4349593A (en) * 1981-04-06 1982-09-14 Penn-Gil Fabrics, Inc. Double knit fabric processing into decorative goods
DE3643357A1 (de) * 1986-12-18 1988-06-23 Medima Werke Karl Scheurer Kg Mehrschicht-stoff
EP0305094A1 (de) * 1987-08-14 1989-03-01 Victor J. Lombardi Rundgestrickter zweischichtiger Bekleidungsstoff und Verfahren
US4921752A (en) * 1988-08-11 1990-05-01 Milliken Research Corporation Laminated seat fabric
EP0529671A2 (de) * 1991-08-30 1993-03-03 WILHELM KNEITZ & CO. AG Laminiertes Textilmaterial, insbesondere für technische Einsatzzwecke
DE4209970A1 (de) * 1992-03-27 1993-09-30 Hoechst Ag Strukturplüsch

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2080741A7 (de) * 1970-02-25 1971-11-19 Degussa
CH547169A (fr) * 1973-06-07 1974-03-29 Daluc Holding Sa Procede de fabrication de textiles formables destines a la fabrication d'articles en mousse et textile formable obtenu par ce procede.
US4349593A (en) * 1981-04-06 1982-09-14 Penn-Gil Fabrics, Inc. Double knit fabric processing into decorative goods
DE3643357A1 (de) * 1986-12-18 1988-06-23 Medima Werke Karl Scheurer Kg Mehrschicht-stoff
EP0305094A1 (de) * 1987-08-14 1989-03-01 Victor J. Lombardi Rundgestrickter zweischichtiger Bekleidungsstoff und Verfahren
US4921752A (en) * 1988-08-11 1990-05-01 Milliken Research Corporation Laminated seat fabric
EP0529671A2 (de) * 1991-08-30 1993-03-03 WILHELM KNEITZ & CO. AG Laminiertes Textilmaterial, insbesondere für technische Einsatzzwecke
DE4209970A1 (de) * 1992-03-27 1993-09-30 Hoechst Ag Strukturplüsch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045577A1 (de) 2015-01-16 2016-07-20 ALSTOM Transport Technologies Gewirktes textiles material, insbesondere zur realisierung eines sitzüberzugs, insbesondere für ein schienenfahrzeug
FR3031754A1 (fr) * 2015-01-16 2016-07-22 Alstom Transp Tech Textile tricote, notamment pour la realisation d'un revetement de siege, en particulier pour un vehicule ferroviaire
CN108866776A (zh) * 2018-08-15 2018-11-23 三六度(中国)有限公司 一种单向导湿全涤格子提花布针织面料的制备方法

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