EP0266238A1 - Beschichtetes Gewebe - Google Patents

Beschichtetes Gewebe Download PDF

Info

Publication number
EP0266238A1
EP0266238A1 EP87402133A EP87402133A EP0266238A1 EP 0266238 A1 EP0266238 A1 EP 0266238A1 EP 87402133 A EP87402133 A EP 87402133A EP 87402133 A EP87402133 A EP 87402133A EP 0266238 A1 EP0266238 A1 EP 0266238A1
Authority
EP
European Patent Office
Prior art keywords
fabric
needling
fabric according
yarns
needles
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.)
Granted
Application number
EP87402133A
Other languages
English (en)
French (fr)
Other versions
EP0266238B1 (de
Inventor
Robert Bolliand
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.)
Institut Textile de France
Original Assignee
Institut Textile de France
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 Institut Textile de France filed Critical Institut Textile de France
Publication of EP0266238A1 publication Critical patent/EP0266238A1/de
Application granted granted Critical
Publication of EP0266238B1 publication Critical patent/EP0266238B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics

Definitions

  • the present invention relates to a coating support fabric with a fibrous appearance obtained from a fabric consisting of continuous filament yarns.
  • the yarn made up of continuous filaments, or continuous yarn is by nature smooth, while the spun of fibers is larger, more swelling and has better adhesion to coatings.
  • continuous yarn is more resistant than fiber yarn.
  • Fabrics with a fibrous surface state are also known, obtained by needling a fabric, of loose texture, constituted at least in part by continuous threads.
  • Such fabrics are described in French Patent No. 80 12 507 and in British Patent No. 2 095 300. But in these two documents, the aim is to give the fabric an aspect of spun yarns and improve his touch.
  • needling is selective and creates drawings hairy appearance.
  • the constituent son of the stitchbonded fabric are at least partially continuous lines or textured son, and needling is carried out under conditions or monitoring individual treatments in order to improve the feel of fabric which is intended for arti clothing keys, as clearly shown by reading all the examples described.
  • the fabric which is the subject of the invention has a face with a fibrous surface state obtained, in a conny manner, by needling of a fabric with a loose texture; but it is composed exclusively of threads made up of a high number of continuous filaments, having a twist of less than 250 turns per meter and the fibrous face is intended to be a coating support.
  • the fabric once needled, has, thanks to the cut fibers or the loops of fibers protruding from its surface, a catching power, an adhesion with respect to the significantly improved coating, while retaining technical characteristics (dynamometric resistance, tear resistance) acceptable for the intended use.
  • the mechanical needling action has another advantage which is to improve the behavior of the fabric; before needling, the fabric has a loose texture and its handling is very delicate; after needling, due to the intermingling of the cut filaments at the intersection of the warp threads and the weft threads, the fabric no longer deforms and its handling is easier.
  • the number of continuous filaments per thread is at least 50.
  • the fabric comprises in warp and weft at most 12 threads per centimeter, each thread having a count of at least 75 tex.
  • the constituent yarns of the fabric are high tenacity yarns, in particular aramid yarns, for example known under the brand KEVLAR®.
  • this type of material can be used as a coating support with good adhesion and a perfectly acceptable adhesion-tear pair.
  • the fabric is needled at the rate of a number of strokes of the needles per square centimeter between 30 and 100, and with a penetration of the needles in the fabric between 7 and 12 millimeters.
  • the coated fabric by coating on the surface with a fibrous surface, has very good adhesion, and a good adhesion / tear pair.
  • the starting fabric is a warp and weft fabric, consisting exclusively of polyamide continuous filament yarns.
  • the thread count is 94 tex, each thread has 140 strands twisted at 200 turns per meter.
  • the fabric has a 7 x 7 texture, defining the average number of threads per centimeter in warp and weft.
  • the aforementioned fabric is subjected to the repeated action of barbed needles, in conventional needling equipment.
  • This material is composed of a needle board animated by an alternating up and down movement, two perforated plates, a food apron which transports the tissue and two outlet cylinders synchronized with the movement of the board with needles, so that the fabric is stationary during the downward movement of the board and advances a certain distance during the upward movement, when the fabric is no longer crossed by the needles.
  • the fabric is introduced between the two plates which hold it during the action of the needles.
  • the needle board descends until the needles are in contact with the fabric and pass through it.
  • the material includes a mechanism for adjusting the stroke, that is to say the movement of the needles, which makes it possible to vary the depth of penetration of the needle into the tissue, and therefore the number of barbs of the needle that will penetrate the fabric.
  • a mechanism for adjusting the stroke that is to say the movement of the needles, which makes it possible to vary the depth of penetration of the needle into the tissue, and therefore the number of barbs of the needle that will penetrate the fabric.
  • These needles were of the reference 15 x 18 x 32 x 3.5 RB 30 A06 / 15 from the brand SINGER.
  • the needle When entering the fabric, consisting exclusively of continuous threads, the needle hooks by its barbs some of the filaments; under the mechanical action and the jolt of tension, filaments break.
  • the cut filaments which therefore have a free end, can then move; the barbs of the needle entrain these cut filaments towards the surface of the tissue opposite to that of introduction of the needle the ; the filaments thus entrained protrude from said surface, either in the free state, or in the form of a loop if the cut end has remained inside the fabric.
  • the face of the fabric having the modified surface condition, with a fiber appearance, was in a pick.
  • the coating product is a PVC paste.
  • the coating was done with a doctor blade, drying at 140 ° C for 4 minutes followed by baking at 180 ° C for 2 minutes.
  • peel the coating product and measure the force used to perform this peeling at a speed of 100 millimeters per minute.
  • the peeling force is 2.25 daN; in the case of needled fabric it is 18.8 daN.
  • the adhesion between the fabric and the coating product has been considerably improved, in a proportion of 1 to 8.
  • the resistance of the fabric after needling it has a loss of 26% in the weft direction and a gain of 5 % in chain direction. The tear resistance is almost unchanged. After needling the fabric has a texture of 8 x 8.
  • the starting fabric is a warp and weft fabric, consisting exclusively of continuous tenacity polyester filament yarns.
  • the thread count is 100 tex, each thread has 60 strands twisted at 130 turns per meter.
  • the fabric has a texture of 10.5 x 11.
  • the needling is carried out as described in Example 1, with 30 strokes of the needles per square centimeter, with a penetration set at 8 millimeters. In the case of non-needled control tissue, the peeling force is 2.5 daN; in the case of needled fabric it is 6 daN.
  • the resistance to tearing initiated was measured in accordance with standards NF 07 148 and NF 07 149, for the control fabric it is 47.5 daN in warp direction and 44 daN in weft direction; for needled fabric it is 36 daN in warp direction and 33.5 daN in weft direction.
  • the adhesion of the coating on the fabric is significantly improved for a drop in tear resistance quite acceptable.
  • the invention is not limited to the examples which have just been described; for each fabric, each intended application, it is possible to obtain a balance between the increase in adhesion due to the modification of the surface condition of the fabric and the losses in strength and tearing due to ruptures of continuous filaments. It is also possible to modify the surface condition of the two faces of the fabric by performing needling operations successively on one and on the other faces.
  • the invention relates to any type of material; thus conclusive tests have been carried out on fabrics made of aramid yarns known under the brand KEVLAR®, which makes it possible to envisage using these fabrics as a coating support, and also on fabrics made up of glass yarns. .
  • the general term "fabric” has been used without this being limiting of the interweaving mode of the wires; it may therefore be woven fabrics themselves but also knitted fabrics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Woven Fabrics (AREA)
  • Nonwoven Fabrics (AREA)
EP19870402133 1986-10-01 1987-09-24 Beschichtetes Gewebe Expired - Lifetime EP0266238B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8613685 1986-10-01
FR8613685A FR2605023A1 (fr) 1986-10-01 1986-10-01 Tissus a etat de surface modifie et procede pour les obtenir.

Publications (2)

Publication Number Publication Date
EP0266238A1 true EP0266238A1 (de) 1988-05-04
EP0266238B1 EP0266238B1 (de) 1992-04-01

Family

ID=9339444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870402133 Expired - Lifetime EP0266238B1 (de) 1986-10-01 1987-09-24 Beschichtetes Gewebe

Country Status (3)

Country Link
EP (1) EP0266238B1 (de)
DE (1) DE3777951D1 (de)
FR (1) FR2605023A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1581680A2 (de) * 2002-11-15 2005-10-05 Milliken & Company Gewebe mit flottierendem faden mit internen verbindungselementen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107389399B (zh) * 2017-07-07 2023-08-29 中央军委后勤保障部建筑工程研究所 一种涂层织物剥离强力测试的制样方法及模具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2095300A (en) * 1981-03-23 1982-09-29 Textiltech Forsch Textile material having a fibrous appearance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2095300A (en) * 1981-03-23 1982-09-29 Textiltech Forsch Textile material having a fibrous appearance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1581680A2 (de) * 2002-11-15 2005-10-05 Milliken & Company Gewebe mit flottierendem faden mit internen verbindungselementen
JP2006506557A (ja) * 2002-11-15 2006-02-23 ミリケン・アンド・カンパニー 内部接続要素を有する浮糸を有する布
EP1581680A4 (de) * 2002-11-15 2007-04-04 Milliken & Co Gewebe mit flottierendem faden mit internen verbindungselementen

Also Published As

Publication number Publication date
FR2605023A1 (fr) 1988-04-15
EP0266238B1 (de) 1992-04-01
DE3777951D1 (de) 1992-05-07

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