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WO2012052857A1 - A reinforcing strip for a tire and a production method - Google Patents

A reinforcing strip for a tire and a production method Download PDF

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Publication number
WO2012052857A1
WO2012052857A1 PCT/IB2011/053575 IB2011053575W WO2012052857A1 WO 2012052857 A1 WO2012052857 A1 WO 2012052857A1 IB 2011053575 W IB2011053575 W IB 2011053575W WO 2012052857 A1 WO2012052857 A1 WO 2012052857A1
Authority
WO
WIPO (PCT)
Prior art keywords
tire
weave
reinforcing strip
production method
leno
Prior art date
Application number
PCT/IB2011/053575
Other languages
French (fr)
Inventor
Yucel Ayyildiz
Ceyhan Celik
Original Assignee
Kordsa Global Endustriyel Iplik Ve Kord Bezi Sanayi Ve Ticaret Anonim Sirketi
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 Kordsa Global Endustriyel Iplik Ve Kord Bezi Sanayi Ve Ticaret Anonim Sirketi filed Critical Kordsa Global Endustriyel Iplik Ve Kord Bezi Sanayi Ve Ticaret Anonim Sirketi
Publication of WO2012052857A1 publication Critical patent/WO2012052857A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/006—With additional leno yarn
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
    • B60C9/2003—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords
    • B60C9/2009—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel characterised by the materials of the belt cords comprising plies of different materials
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D19/00—Gauze or leno-woven fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00—Open-work 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
    • D10B2505/00—Industrial
    • D10B2505/02—Reinforcing materials; Prepregs
    • D10B2505/022—Reinforcing materials; Prepregs for tyres

Definitions

  • Cord fabric is used in tires of transport vehicles in order to reinforce tires.
  • the cord fabric is calendered by the rubber plates to pass through the pressurized cylinders and cut as strips.
  • the strips obtained are used as a reinforcing structure. But these processes cause extra cost and time loss in tire production.
  • the mechanical performances of the cord fabric made of plain wave are high whereas their flexibilities are not.
  • the weft yarns in known cord fabrics are made of cotton, nylon, polyester, rayon or the mixture thereof. The edge warps of the band reinforcement strips cut from the cord fabric made of these materials cannot hold onto the strip stably. So the warps become loose from the edges and make the strip unusable.
  • leno weave which is another kind of weaving
  • two adjacent warp yarns are wrapped around each other.
  • the wefts are picked between the wrapping points.
  • This weave structure prevents the edge weft yarns from becoming loose after cutting.
  • Different techniques are used in achieving a reinforcement strip for a tire. In of these techniques band reinforcement strips, lower and upper faces of the cord fabrics are calendered with rubber plates. Then this calendered rubber cord fabric is cut with knives in direction of warps. But this method is an extra production step for tire manufacturers.
  • the band reinforcement strips are obtained just as a fabric by cutting in strip widths, without calendaring the lower and upper faces of the cord fabric with rubber. Also this method is performed by cutting the fabrics having a leno weave structure.
  • the cord yarns used in structure of cord fabrics are coated with rubber with extrusion coating method.
  • the reinforcement strips are achieved by the strip widths being cut.
  • the Japanese patent document no JP2154026 discloses a woven fabric material which is developed to prevent the tires from abrasion and cracking. Leno weave is applied with materials like polyester, polyamide wherein the fabric is in contact with the edge of the wheel.
  • the United States patent document no US2010065179 discloses a pneumatic tire including an axis of rotation, a carcass, a tread and a belt structure. The tire has a reinforcing coating structure and this coating at least one layer of an leno weave fabric having warp yarns extending in radial direction and weft yarns extending in the circumferential direction.
  • the United States Patent document no US2009294025 discloses a pneumatic tire containing a tread, a carcass, a cap ply located between these two and at least one belt.
  • the cap ply comprises leno weave fabric having warp yarns extending in radial direction and weft yarns extending in circumferential direction.
  • the objective of the present invention is to realize a reinforcing strip for a tire having a mixture texture of plain weave and leno and a production method
  • Another objective of the present invention is to realize reinforcing strip for a tire, preventing the warps from becoming loose from the edges of the reinforcing strip, and a production method.
  • a further objective of the present invention is to realize a reinforcing strip for a tire, having a higher mechanical strength than the conventional tire reinforcing strips, and a production method.
  • Figure 1 is the view of a strip made of plain weave.
  • Figure 2 is the view of the strip made of leno weave.
  • Figure 3 is the view of the strip achieved with the invention.
  • Figure 4 is the view of the cord fabric.
  • Figure 5 is the view of the reinforcing strip which is cut.
  • Figure 6 is the view of the flow diagram of the reinforcing strip for a tire and the production method.
  • the inventive reinforcing strip for a tire and the production method (50) comprises the steps of:
  • the inventive reinforcing strip provided by the method for achieving a reinforcing strip for a tire (50) comprises a plain weave (3) and a leno weave (4).
  • the warp yarns (2) in cord fabrics (6) applied to the tires are the load carrying and reinforcing elements.
  • the weft yarns (1) hold the warp yarns (2) together.
  • the part of the reinforcing strip (7) which is a plain weave (3) is achieved by the weft yarn (1) and the warp yarn (2) to be woven in turn (15).
  • the part which is a leno weave (4) is achieved by the adjacent two warp yarns (2) to be wrapped around each other and to pass through the weft yarn (1).
  • the plain weave (3) composes the main structure of the inventive reinforcing strip (7) for a tire because it is the best kind of weaving which reinforces the cord fabric (6). In addition to this the risk of the edges of the weaving becoming loose is less in leno warp weaving (4). For this reason the leno weave (4) is performed in intervals such that the strips (7) correspond to the cutting edges.
  • the mixture weave (5) which has a recurring structure being at least two leno weaves (4), at least eight plain weaves (3) and again at least two leno weaves (4), is obtained (20).
  • the warp yarns (2) at the edges of the reinforcing strips (7) remain connected to the strip (7) and provide a high mechanical performance.
  • the density of the weft yarn (1) in a mixture weave (5) obtained with the inventive method is at least 5 wefts/dm, at most 50 wefts/dm, and the density of the warp yarn (2) is at least 55 warps/dm, at most 140 warps/dm.
  • the warp yarns (2) composing the plain weave (3) are at least 1000-2 dtex (double yarn), at most 1400-2 dtex (double yarn).
  • the warp yarns (2) composing the leno weave (4) are at least 1000-1 dtex (for single yarn), at most 1400-2 dtex (double yarn, that is one yarn is made of two yarns by bending.
  • the yarns (2) composing the leno weave (4) should be thinner than the yarns (2) composing the plain weave (3).
  • the mixture weave (5) is bathed (25).
  • the cord fabrics (6) having a mixture weave texture are obtained (30).
  • These cord fabrics (6) treated with bathing are dried first (35) and then cut in strips (40).
  • the inventive reinforcing strips (7) are achieved (45).
  • Plain weave (3) is performed as the warp density being 100 warps/dm and 1400 dtex by using 1400-2 dtex Nylon 66 warp yarns (2) and 1400-1 dtex Nylon 66 warp yarns (2), and the weft density being 15 wefts/dm by using 1400 dtex Nylon 66 weft yarns (1).
  • 1400-2 dtex yarns compose the warp of the plain weave whereas 1400-1 dtex yarns compose the warp structure to be used in leno weave (4).
  • This mixture weave (5) is bathed with RFL adhesive (resorcinol formaldehyde latex) once and the RFL is dried on the weaving (5). Consequently the fabric (6) obtained are cut as strips in quality control table with mechanical knives between the leno warps.
  • RFL adhesive resorcinol formaldehyde latex

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

The present invention relates to a reinforcing strip for a tire in different weavings 5 applied to reinforce the tires in transport vehicles and a production method (50). The objective of the present invention is to realize a reinforcing strip (7) having a plain weave (3) and a leno weave (4) wherein the warp yarns do not become loose from the edges of the reinforcing strip (7). The reinforcing strip (7) has a higher mechanical strength than the conventional reinforcing strips for a tire. 10

Description

A REINFORCING STRIP FOR A TIRE AND A PRODUCTION METHOD
Field of the Invention The present invention relates to a reinforcing strip for a tire in different weavings applied to reinforce the tires in transport vehicles and a production method
Background of the Invention Cord fabric is used in tires of transport vehicles in order to reinforce tires. The cord fabric is calendered by the rubber plates to pass through the pressurized cylinders and cut as strips. The strips obtained are used as a reinforcing structure. But these processes cause extra cost and time loss in tire production. The mechanical performances of the cord fabric made of plain wave are high whereas their flexibilities are not. It is not possible to use cord fabric as an upper band reinforcement strip just by cutting without any other process. Because after the cutting the weft yarns at the edge of the strips cannot hold onto the warp yarns at the edges of plain weave strongly. For this reason the warps are removed from where they are and become unusable. The weft yarns in known cord fabrics are made of cotton, nylon, polyester, rayon or the mixture thereof. The edge warps of the band reinforcement strips cut from the cord fabric made of these materials cannot hold onto the strip stably. So the warps become loose from the edges and make the strip unusable.
In leno weave, which is another kind of weaving, two adjacent warp yarns are wrapped around each other. The wefts are picked between the wrapping points. This weave structure prevents the edge weft yarns from becoming loose after cutting. Different techniques are used in achieving a reinforcement strip for a tire. In of these techniques band reinforcement strips, lower and upper faces of the cord fabrics are calendered with rubber plates. Then this calendered rubber cord fabric is cut with knives in direction of warps. But this method is an extra production step for tire manufacturers.
In another state of the art, the band reinforcement strips are obtained just as a fabric by cutting in strip widths, without calendaring the lower and upper faces of the cord fabric with rubber. Also this method is performed by cutting the fabrics having a leno weave structure.
In another state of the art, the cord yarns used in structure of cord fabrics are coated with rubber with extrusion coating method. The reinforcement strips are achieved by the strip widths being cut.
The Japanese patent document no JP2154026, an application in the state of the art, discloses a woven fabric material which is developed to prevent the tires from abrasion and cracking. Leno weave is applied with materials like polyester, polyamide wherein the fabric is in contact with the edge of the wheel. the United States patent document no US2010065179, an application known in the state of the art, discloses a pneumatic tire including an axis of rotation, a carcass, a tread and a belt structure. The tire has a reinforcing coating structure and this coating at least one layer of an leno weave fabric having warp yarns extending in radial direction and weft yarns extending in the circumferential direction.
The United States Patent document no US2009294025, an application known in the state of the art, discloses a pneumatic tire containing a tread, a carcass, a cap ply located between these two and at least one belt. The cap ply comprises leno weave fabric having warp yarns extending in radial direction and weft yarns extending in circumferential direction.
Summary of the Invention
The objective of the present invention is to realize a reinforcing strip for a tire having a mixture texture of plain weave and leno and a production method
Another objective of the present invention is to realize reinforcing strip for a tire, preventing the warps from becoming loose from the edges of the reinforcing strip, and a production method.
A further objective of the present invention is to realize a reinforcing strip for a tire, having a higher mechanical strength than the conventional tire reinforcing strips, and a production method.
Detailed Description of the Invention
The reinforcing strip for a tire realized to fulfill the objective of the present invention is illustrated in the accompanying figures wherein,
Figure 1 is the view of a strip made of plain weave.
Figure 2 is the view of the strip made of leno weave.
Figure 3 is the view of the strip achieved with the invention.
Figure 4 is the view of the cord fabric.
Figure 5 is the view of the reinforcing strip which is cut.
Figure 6 is the view of the flow diagram of the reinforcing strip for a tire and the production method.
The components in the figures are individually numbered and the numbers refer to the following: 1 Weft yarn
2- Warp yarn
3 Plain weave
4· Leno weave
5 Mixture weave
6- Cord fabric
7- Reinforcing strip
The inventive reinforcing strip for a tire and the production method (50) comprises the steps of:
- performing (15) plain weave (3) and leno weave (4) by using the weft yarn (1) and the warp yarn (2),
composing (20) the mixture weave (5),
- bathing (25) the mixture weave (5),
- performing drying (30),
obtaining (35) the cord fabric (6),
cutting (40) the cord fabric (6),
obtaining (45) the reinforcing strip (7).
The inventive reinforcing strip provided by the method for achieving a reinforcing strip for a tire (50) comprises a plain weave (3) and a leno weave (4). The warp yarns (2) in cord fabrics (6) applied to the tires are the load carrying and reinforcing elements. And the weft yarns (1) hold the warp yarns (2) together. The part of the reinforcing strip (7) which is a plain weave (3) is achieved by the weft yarn (1) and the warp yarn (2) to be woven in turn (15). And the part which is a leno weave (4) is achieved by the adjacent two warp yarns (2) to be wrapped around each other and to pass through the weft yarn (1). (15) The plain weave (3) composes the main structure of the inventive reinforcing strip (7) for a tire because it is the best kind of weaving which reinforces the cord fabric (6). In addition to this the risk of the edges of the weaving becoming loose is less in leno warp weaving (4). For this reason the leno weave (4) is performed in intervals such that the strips (7) correspond to the cutting edges. Thus, the mixture weave (5), which has a recurring structure being at least two leno weaves (4), at least eight plain weaves (3) and again at least two leno weaves (4), is obtained (20). By means of this binary structure the warp yarns (2) at the edges of the reinforcing strips (7) remain connected to the strip (7) and provide a high mechanical performance. The density of the weft yarn (1) in a mixture weave (5) obtained with the inventive method is at least 5 wefts/dm, at most 50 wefts/dm, and the density of the warp yarn (2) is at least 55 warps/dm, at most 140 warps/dm.
The warp yarns (2) composing the plain weave (3) are at least 1000-2 dtex (double yarn), at most 1400-2 dtex (double yarn).
The warp yarns (2) composing the leno weave (4) are at least 1000-1 dtex (for single yarn), at most 1400-2 dtex (double yarn, that is one yarn is made of two yarns by bending.
In order to keep the strip width uniform, the yarns (2) composing the leno weave (4) should be thinner than the yarns (2) composing the plain weave (3).
The mixture weave (5) is bathed (25). Thus, the cord fabrics (6) having a mixture weave texture are obtained (30). These cord fabrics (6) treated with bathing are dried first (35) and then cut in strips (40). By this means the inventive reinforcing strips (7) are achieved (45). Model Practice
Plain weave (3) is performed as the warp density being 100 warps/dm and 1400 dtex by using 1400-2 dtex Nylon 66 warp yarns (2) and 1400-1 dtex Nylon 66 warp yarns (2), and the weft density being 15 wefts/dm by using 1400 dtex Nylon 66 weft yarns (1). 1400-2 dtex yarns compose the warp of the plain weave whereas 1400-1 dtex yarns compose the warp structure to be used in leno weave (4). This mixture weave (5) is bathed with RFL adhesive (resorcinol formaldehyde latex) once and the RFL is dried on the weaving (5). Consequently the fabric (6) obtained are cut as strips in quality control table with mechanical knives between the leno warps.
Within the framework of these basic concepts, it is possible to develop a wide variety of embodiments of the inventive reinforcing strip for a tire and a production method (50). The invention cannot be limited to the examples described herein; it is essentially according to the claims.

Claims

1. A reinforcing strip for a tire and a production method (50) characterized by the steps of
- performing (15) plain weave (3) and leno weave (4) by using the weft yarn (1) and the warp yarn (2),
- composing (20) the mixture weave (5),
- bathing (25) the mixture weave (5),
- performing drying (30),
- obtaining (35) the cord fabric (6),
- cutting (40) the cord fabric (6),
- obtaining (45) the reinforcing strip (7).
2. A reinforcing strip for a tire and a production method (50) according to claim 1, characterized in that at least two leno weaves (4), at least eight plain weaves (3) and again at least two leno weaves (4) are performed in step of composing (20) a mixture weave (5).
3. A reinforcing strip for a tire and a production method (50) according to any of the claims 1 or 2, characterized in that the warp yarns (2) used in plain weave (3) step (15) by using weft yarns (1) and warp yarns (2) are at least 1000-1 dtex (double yarn), at most 1400-2dtex (double yarn).
4. A reinforcing strip for a tire and a production method (50) according to any of the claims 1 to 3, characterized in that the warp yarns (2) used in leno weave (4) step (15) by using weft yarns (1) and warp yarns (2) are at least 1000-1 dtex (single yarn), at most 1400-2dtex (double yarn).
5. A reinforcing strip for a tire (7) which is achieved with a method (50) according to any of the preceding claims.
PCT/IB2011/053575 2010-10-21 2011-08-11 A reinforcing strip for a tire and a production method WO2012052857A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2010/08684 2010-10-21
TR2010/08684A TR201008684A2 (en) 2010-10-21 2010-10-21 A vehicle tire reinforcing strip and production method

Publications (1)

Publication Number Publication Date
WO2012052857A1 true WO2012052857A1 (en) 2012-04-26

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TR (1) TR201008684A2 (en)
WO (1) WO2012052857A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696090A (en) * 2013-12-24 2014-04-02 苏州市职业大学 Real silk fabric with square meshes and production method thereof
CN112874244A (en) * 2019-11-29 2021-06-01 韩国轮胎与科技株式会社 Tyre comprising a fabric strip

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976943A (en) * 1982-10-20 1984-05-02 東洋紡績株式会社 Reed fabric
JPH02154026A (en) 1988-12-01 1990-06-13 Toray Ind Inc Chafer fabric for tire reinforcement
US5134006A (en) * 1991-12-05 1992-07-28 The Goodyear Tire & Rubber Company Belt reinforcing fabric and a belt reinforced with the same
US20040180591A1 (en) * 2003-03-13 2004-09-16 Haneburger Jules A. Sealed edge food belt
US20090294025A1 (en) 2008-05-29 2009-12-03 Michiels Dany F Process for Forming Pneumatic Tire with Leno Cap Ply
US20100065179A1 (en) 2008-09-15 2010-03-18 Serge Julien Auguste Imhoff pneumatic tire with a leno weave flipper or chipper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5976943A (en) * 1982-10-20 1984-05-02 東洋紡績株式会社 Reed fabric
JPH02154026A (en) 1988-12-01 1990-06-13 Toray Ind Inc Chafer fabric for tire reinforcement
US5134006A (en) * 1991-12-05 1992-07-28 The Goodyear Tire & Rubber Company Belt reinforcing fabric and a belt reinforced with the same
US20040180591A1 (en) * 2003-03-13 2004-09-16 Haneburger Jules A. Sealed edge food belt
US20090294025A1 (en) 2008-05-29 2009-12-03 Michiels Dany F Process for Forming Pneumatic Tire with Leno Cap Ply
US20100065179A1 (en) 2008-09-15 2010-03-18 Serge Julien Auguste Imhoff pneumatic tire with a leno weave flipper or chipper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696090A (en) * 2013-12-24 2014-04-02 苏州市职业大学 Real silk fabric with square meshes and production method thereof
CN112874244A (en) * 2019-11-29 2021-06-01 韩国轮胎与科技株式会社 Tyre comprising a fabric strip

Also Published As

Publication number Publication date
TR201008684A2 (en) 2011-10-21

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