CN107002354A - Textile cord with least three kinds twists - Google Patents
Textile cord with least three kinds twists Download PDFInfo
- Publication number
- CN107002354A CN107002354A CN201580067302.3A CN201580067302A CN107002354A CN 107002354 A CN107002354 A CN 107002354A CN 201580067302 A CN201580067302 A CN 201580067302A CN 107002354 A CN107002354 A CN 107002354A
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- Prior art keywords
- twist
- cord
- yarn
- cord according
- stock
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Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/48—Tyre cords
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
- D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/104—Rope or cable structures twisted
- D07B2201/1044—Rope or cable structures twisted characterised by a value or range of the pitch parameter given
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/10—Rope or cable structures
- D07B2201/104—Rope or cable structures twisted
- D07B2201/1064—Rope or cable structures twisted characterised by lay direction of the strand compared to the lay direction of the wires in the strand
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2024—Strands twisted
- D07B2201/2025—Strands twisted characterised by a value or range of the pitch parameter given
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2401/00—Aspects related to the problem to be solved or advantage
- D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
- D07B2401/2005—Elongation or elasticity
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2046—Tire cords
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Tires In General (AREA)
- Ropes Or Cables (AREA)
Abstract
The present invention relates to at least three kinds twist (T1, T2, T3 textile cord (50)), it includes at least N number of stock (20a, 20b, 20c, 20d), wherein N is more than 1, at least N number of stock is twisted together with final twist T3 on final direction D2, per personal share by M stock (10a, 10b, 10c) constitute, wherein M is more than 1, and secondary stock is successively on the middle direction D1 opposite with D2 with middle twist T2 (T2a, T2b, T2c, T2d) twist, wherein each time stock is made up of spinning fibre (5), the spinning fibre (5) is on themselves with initial twist T1 (T1a, T1b, T1c) twist in the direction di, the at least half that wherein N is multiplied by M spinning fibre has the initial elastic modulus Mi for being more than 800cN/tex.The textile cord can be advantageously used for the reinforcement in the reinforcement in Pneumatic vehicle tire, the belt or casingply of particularly described pneumatic tire.
Description
Technical field
The present invention relates to can be used in enhancing article as made from plastics or the article as made from rubber (such as vehicle tyre)
Textile reinforcing elements or " reinforcement ".
The present invention relates more specifically to that the textile cord or doubled yarn that strengthen this tire can be particularly used for.
Background technology
Since tire starts to occur, fabric just already functions as reinforcement.
It is known to be existed as continuous web fiber textile cord as made from polyester, nylon, cellulose or aramid fibre
In tire, even played an important role in the high-performance tire for having been approved by travelling with flank speed.In order to meet tire
Regulation, fabric is needed with high fracture strength, high elastic modulus, good fatigue durability and last to being easy to enhanced
The good bonding force of rubber or other polymers matrix.
Simply look back herein, it is conventional to pass through common name for these fabric doubled yarns or cord of double viscosity (T1, T2) types
To twist the method preparation of method, wherein：
- in the first step, each multifilament fiber or yarn of last cord are constituted first in given direction D1 (difference
For S directions or Z-direction) on (initial twist T1) is individually twisted to itself to form stock, wherein unit silk is around fiber
Axle (or axle of stock) is deformed into spiral shape；
- then, in the second step, if carried interest, usually two, three or four strands (their properties are identical or different, in cord
In the case of be referred to as mixing stock or compound stock) and then in opposite direction D2 (be respectively Z-direction or S directions, it is according to generally acknowledging
Naming convention, i.e. the orientation turned to is marked according to S or Z cross break) on final twist T2, (it can be identical with T1 or not
Together) if twisting cord or final component together to be included carried interest.
The purpose of twisting is the property of transformation material so as to produce the horizontal cohesive force of reinforcement, increases its fatigue strong
Degree, also improve with enhanced matrix bonding force.
Such textile cord, their construction and manufacture method be well known to a person skilled in the art.They are detailed
Carefully it is described in lot of documents, such as patent document EP 021 485, EP 220 642, EP 225 391, EP 335 588, EP
467 585, US 3 419 060, US 3 977 172, US 4 155 394, US 5 558 144, WO97/06294 or EP
848 767, or closer to WO2012/104279, WO2012/146612, WO2014/057082 of phase, this is only one enumerated
Fraction.
In order to strengthen rubber article such as tire, the fatigue strength of these textile cords (is stretched, bent, compressing durable
Property) it is very important.It is known that typically for given material, the twist of application is bigger, and fatigue strength is higher, but with
It is the tension failure power (being referred to as toughness when being represented with per unit weight) of the textile cord as the twist increases that this is relative
Plus and atrociously reduce, this obviously from enhancing angle for be unfavorable.
Therefore, the designer of textile cord, such as tiremaker constantly searches for such textile cord, the fabric curtain
Line is for given material and the given twist, and its engineering properties, particularly disruptive force and toughness can be improved.
The content of the invention
Now, in the research process of applicant company, applicant company especially have found a kind of new knit
Thing cord, for giving material and the given final twist, its specific structure and construction can improve rupture against expectation
Power and toughness property.
Therefore, according to first topic, the present invention relates to the textile cord with least three kinds twists (T1, T2, T3), its
Including twisting at least N number of stock together in the direction d 2 with twist T3, N is more than 1, is made up of per personal share M time stocks, M is more than
1, together with secondary capital stock body is twisted on the direction D1 opposite with D2 with twist T2, each time capital stock body is made up of yarn, described
Yarn is twisted to itself in the direction di with twist T1 in advance, and at least half that wherein N is multiplied by M yarn has expression
For Mi initial elastic modulus, Mi is more than 800cN/tex.
The invention further relates to this textile cord as by plastics or rubber manufacture article or semi-finished product (such as pipeline,
Band, conveyer belt, vehicle tyre) reinforcing element purposes, further relate to rough (i.e. before solidification or vulcanization) and solidification
These articles and the semi-finished product as made from rubber of state (after hardening), and tire is in itself.
Especially, tire of the invention can be intended to be used for the motor-driven of car, 4x4 or SUV (SUV) type
Vehicle, can also be intended to for sulky vehicle, such as motorcycle, or for being subway, bus selected from van, heavy vehicle
Car, road towing vehicle (load truck, tractor, trailer) and off-road vehicle (agricultural or work machine), airborne vehicle, its
He transport or carrying vehicle industrial vehicle.
The textile cord of the present invention is intended in particular for the crown reinforcement as described above for vehicle tyre very much
In (or belt) or in carcass reinforcement.
Brief description of the drawings
Extremely schemed by means of following detailed description and exemplary and Fig. 1 related to these embodiments
7, it will readily appreciate that the present invention and its advantage, accompanying drawing (unless otherwise noted, otherwise accompanying drawing is not drawn according to specific ratio)
Display：
- Fig. 1：In cross-section, conventional multi-filament textiles fiber (or yarn) (5) first in an initial condition, that is, do not have
Any twisting, is then carried out after the first twisting operation T1 in the direction di, forms the yarn or " secondary stock " twisted on themselves
(10)；
- Fig. 2：In cross-section, the component of 3 yarns (10a, 10b, 10c) as above as secondary stock (in advance with T1a,
T1b, T1c are twisted on the D1 of identical direction), still on the D1 of identical direction by the second twisting operation T2 to combine to be formed
It is intended to the stock (20) for the cord according to the present invention；
- Fig. 3：In cross-section, the component of 3 personal shares (20a, 20b, 20c) as above is (in advance with T2a, T2b, T2c in phase
Twisted on same direction D1), combined by this 3rd twisting operation T3 on the direction D2 opposite with direction D1 with shape
Into the final textile cord (30) with three kinds of twists (T1, T2, T3) according to the present invention；
- Fig. 4：In cross-section, the general components of 3 yarns (10a, 10b, 10c) as above are specifically directly used as stock (in advance
First all twisted in the direction di with T1a, T1b, T1c), pass through the second twisting operation on the direction D2 opposite with direction D1
T2 is to combine to form the textile cord (40) with two kinds of twists (T1, T2) according to prior art；
- Fig. 5：In cross-section, the component of 4 personal shares (20a, 20b, 20c, 20d) (is existed with T2a, T2b, T2c, T2d in advance
Twisted on the D1 of identical direction), by the 3rd twisting operation T3 on the direction D2 opposite with direction D1 to combine to be formed
According to the final textile cord (50) with three kinds of twists (T1, T2, T3) of the present invention；
- Fig. 6：As above cord (50) makes a farfetched comparison the more realistic another diagrams of Fig. 5, in cross-section, shows textile cord
The final cross section of (by way of parenthesis, no matter whether it is according to cord of the invention) is once formation, in the case of minimum stretch,
Final cross section is actually closer to circular contour due to the lateral plasticity of height that the multifilament property of original material is provided
Cross section；
- Fig. 7：Finally, in radial section (it refers in the plane containing tire rotary shaft), combine according to this hair
The embodiment of the tire according to the present invention of bright textile cord.
Embodiment
In this application, unless otherwise expressly stated, otherwise all percentages (%) represent mass percent.
Scope of any time interval of the value represented by statement " between a and b " from the value that b is extended less than more than a
(eliminating end points a and b), and " any interval for the value that a to b " is represented means to extend to up to the model of b value from a by statement
Enclose (i.e. including strict end points a and b).
Therefore, it is that there is height according to the textile cord or doubled yarn (with reference to figures 1 through accompanying drawing 3 and accompanying drawing 5) of the present invention
The textile cord (30,50) of specific configuration is spent, its essential feature having includes：
- at least three kinds (it refers to three kinds or more than three kinds) twists (T1, T2, T3)；
- at least N number of stock (20,20a, 20b, 20c, 20d), N is more than 1, and it is with final twist T3 in the final direction of identical
Twisted together on D2；
- be made up of per personal share M stocks (10,10a, 10b, 10c), M more than 1, itself with middle twist T2 (T2a,
T2b, T2c, T2d) twisted on the middle direction D1 opposite with D2 together with；
- each time stock is made up of yarn (5), and yarn (5) is in advance with initial twist T1 (T1a, T1b, T1c) initial
Twisted on themselves on the D1 of direction.
According to the statement cord of the twist " have at least three kinds ", (it refers to have three kinds of twists or more to those skilled in the art
It is a variety of) it will be immediately appreciated by, it is therefore desirable at least three continuous reverse lay operations (or twisting in the opposite direction) are with to the present invention
Cord " destructing " simultaneously " return " and manufacture its initial yarn, that is, (multifilament is fine for the original yarn for returning in its original state
Dimension), i.e., no twist.In addition, there is the continuous twisting operation of at least three (three or more) to form the curtain of the present invention in explanation
Line, rather than under normal circumstances two.
Another essential feature is that at least half for the yarn for constituting cord must have the initial bullet more than 800cN/tex
Property modulus Mi (thus significantly excluding nylon fiber), otherwise observe that bursting force and toughness do not increase.
The step of will be described in the structure of the textile cord of the present invention now and be related to the textile cord of the manufacture present invention.
First, Fig. 1 schematically shows that the conventional multi-filament textiles fiber (5) under original state (i.e. no twist) (is also claimed
For " yarn ") cross section；It is well known that this yarn is formed by multiple (being usually tens to hundreds of) unit silks (50), its
With typically smaller than 25 μm of very thin diameter.
On direction D1 (S or Z) after twisting operation T1 (first twist), initial yarn (5) is converted on themselves
The yarn of twisting, is referred to as " secondary stock " (10).In this stock, thus unit silk makes itself around axle (or the secondary stock of fiber
Axle) be deformed into spiral shape.
Then, as shown in the embodiment of fig. 2, then by M time stocks, (for example they are 3 herein；10a、10b、10c)
Them are made to twist together to form " stock " (20) with middle twist T2 (second twist) on direction D1 as before.Often
Individual time stock is characterised by, specific first twist T1 (for example, being T1a, T1b, T1c herein), first twist of each stock
T1 can be with identical (under normal conditions, that is, here, for example, T1a=T1b=T1c) or different from each other.
Finally, indicate to meaning as shown in Figure 3, then by N number of stock (such as being three personal shares, 20a, 20b, 20c herein)
On the direction D2 opposite with D1 with final twist T3 (the 3rd twist) make they twist together with, with formed according to the present invention
Final textile cord (30).Specific second twist T2 (for example, being T2a, T2b, T2c herein) is characterised by per personal share, often
Second twist T2 of personal share can with identical (under normal conditions, that is, here, for example, T2a=T2b=T2c) or each other not
Together.
Final textile cord (30) is derived from, it includes N and is multiplied by M (herein, for example, 9) individual stock, therefore finally knit
Thing cord (30) is characterised by (at least) three kinds of twists (T1, T2, T3).
The present invention is clearly applicable for the situation more than 3 kinds of continuous twists, for example by four (T1, T2, T3, T4) or five (T1,
T2, T3, T4, T5) twist is planted applied to original yarn (5).Notably, however for cost reasons, the present invention is preferably carried out
Only three continuous twisting operations (T1, T2, T3).
Compared with Fig. 3, Fig. 4 displays prepare the usual manner of double twist textile cords.By M actually directly as stock
Secondary stock (for example, being 3 personal share 10a, 10b, 10c herein) is twisted on (second) direction D2 opposite with (first) twist direction D1
Together with double twists (the T1, T2) textile cord (40) of directly formation according to prior art.
Fig. 5 schematically shows, in cross-section, the components of 4 personal shares (20a, 20b, 20c, 20d) (in advance with T2a, T2b,
T2c, T2d are twisted together on the D1 of identical direction), by the 3rd intertwining operation T3 on the direction D2 opposite with direction D1 come group
Close to form another embodiment of the final cord (50) with three kinds of twists (T1, T2, T3) according to the present invention.Per personal share
It is characterised by that specific second twist T2 (being in the case T2a, T2b, T2c, T2d) can be identical or different with another stock.
As prompting, Fig. 6 is shown, still in cross-section, the more realistic another figure of diagram of the foregoing cord (50) than Fig. 5
Show, the fact that it has looked back following known：Textile cord (by way of parenthesis, though its whether be according to the present invention cord) it is transversal
Face is once formation, in the case of minimum stretch, the stock that textile cord is provided by the multifilament property of pristine fibre (yarn)
The lateral radial direction plasticity of height of (20a, 20b, 20c, 20d) and time stock (10a, 10b, 10c) and be actually closer to
The cylindrical structural of the cross section of substantially circular profile.
In this application, " fabric " or " textile material " broadly mean very much by addition to metal material (no matter
It is natural materials or synthetic) made from any material, its can be converted into by any appropriate method for transformation silk thread,
Fiber or film.By way of non-limiting example for example, it can be mentioned that polymer spin processes, such as melt spinning, wet
Formula spinning or gel spinning.
Although the material as made from non-polymer material (such as mineral matter such as glass, or non-polymeric organic materials such as carbon)
It is included in the definition of textile material, but present invention preferably uses the material as made from polymeric material (thermoplasticity or non-thermoplastic
Property type) implement.
As thermoplasticity or the example of other kinds of polymeric material, it can be mentioned that such as cellulose, particularly nylon,
Polyvinyl alcohol (is abbreviated as PVA), polyketone, aromatic polyamides (aromatic polyamide), and aromatic polyester, polybenzoxazole (is abbreviated as
PBO), polyimides, polyester, be especially selected from PET (PET), PEN (PEN),
PBT (polybutylene terephthalate), PBN (poly- naphthalenedicarboxylic acid fourth diester), PPT (polytrimethylene terephthalate), PPN are (poly-
Naphthalenedicarboxylic acid propylene diester) those.
Certainly, the present invention is applicable in situations that, wherein some yarns of the textile cord of the present invention by different materials
Formed and mixed or complex yarn with constituting, such as yarn based at least polyester and nylon, or based at least polyester and cellulose
Yarn, or the yarn based at least polyester and polyketone, or the yarn based at least polyketone and nylon, or based at least cellulose
With the yarn of nylon, or the yarn based at least cellulose and polyketone, or the yarn based at least cellulose and aromatic polyamides,
Or the yarn based at least aromatic polyamides and nylon, or the yarn based at least aromatic polyamides and polyester (such as PET or PEN)
Line, or the yarn of at least aromatic polyamides and polyketone is based even on, cited is only a small number of embodiments, and N is multiplied by M yarn extremely
Few half substantially has the modulus Mi more than 800cN/tex.
In the cord of the present invention, N changes preferably in the range of 2 to 6, and more preferably 2 to 4.According to another excellent
The embodiment of choosing, M changes in the range of 2 to 6, and more preferably 2 to 4.According to another preferred embodiment, yarn
Total (being multiplied by M equal to N) is included in the range of 4 to 25, and more preferably 4 to 16.
The twist can be measured and represented in two different ways in mode known to one of skill in the art, i.e. with letter
Single mode is expressed as every meter of revolution (t/m), or, tighter when wish to compare heterogeneity (cube density) and/or
During the material of different yarns number, the twisting angle of silk is expressed as, or equally in the form of twist factor K.
Twist factor K passes through following known relationship to twist T (T1, T2 and T3 herein, is for example respectively associated)：
K=(twist T) × [(count of yarn/(1000. ρ)]1/2
The twist T of wherein unit silk (its constitute time stock, stock or doubled yarn) represents with twist m (t/m), the count of yarn with
Tex (weight in gram of 1000 meters of secondary stock, stock or doubled yarn) is represented, and last ρ is obtained stock, stock or conjunction
The density of the material of stock yarn line or cube density are (with g/cm3Meter) (for example, cellulose is about 1.50g/cm3, aromatic polyamides is
1.44g/cm3, polyester such as PET is 1.38g/cm3, nylon is 1.14g/cm3)；In the case of cord is mixed, ρ is obviously density
To the weighted average of the respective count of yarn of the material of composition time stock, stock or doubled yarn.
In the cord of the present invention, it is preferable that the twist T1 represented with twist m (t/m) is included between 10 and 350, more
Preferably between 20 and 200.According to another preferred embodiment, each time stock has twist factor K1, and it is included in 2 and 80
Between, more preferably between 6 and 70.
According to another preferred embodiment, the twist T2 represented with twist m is preferably included between 25 and 470, more
Preferably in 35 and 400.According to another preferred embodiment, there is twist factor K2 per personal share, its be included in 10 and 150 it
Between, more preferably between 20 and 130.
According to another preferred embodiment, the twist T3 represented with twist m is preferably included between 30 and 600, more
Preferably in 80 and 500.According to another preferred embodiment, cord of the invention has twist factor K3, and it is included in 50 Hes
Between 500, more preferably between 80 and 230.
Preferably, T2 is more than T1 (T1 and T2 are especially represented with t/m).According to another preferred embodiment, it can be with
Or the foregoing embodiments engagement that can get along well, wherein T2 is less than T3 (T2 and T3 are especially represented with t/m), and T2 is more preferably included
Between T3 and 0.95 times of 0.2 times of T3, particularly between T3 and 0.8 times of 0.4 times of T3.
According to another preferred embodiment, T1+T2's and between T3 and 1.2 times of 0.8 times of T3, more preferably
Ground (T1, T2 and T3 are especially represented with t/m) between 0.9 times T3 and 1.1 times of T3, T1+T2 is especially equal to T3.
In the cord of the present invention, for most of (in quantitative terms), more preferably N is multiplied by M yarn
The whole of (in an initial condition, that is, not having twist T1) has modulus Mi, and it is more than 800cN/tex, particularly greater than 1000cN/
tex.Initial elastic modulus Mi, or Young's modulus are obvious longitudinal modulus of elasticities, i.e., along yarn axle modulus.
Still more preferably, at least half, the N of particularly most (in quantitative terms), which is multiplied by M yarn, to be had more than 1200cN/
Tex modulus Mi, more particularly with the modulus Mi more than 1400cN/tex.Still more preferably, N is multiplied by the whole of M yarn
With the modulus Mi more than 1000cN/tex, particularly with the modulus Mi more than 1200cN/tex, more particularly with more than
1400cN/tex modulus Mi.
As noted above whole properties (count of yarn, the initial modulus of yarn, fracture strength and toughness) at 20 DEG C
Being already subjected to the cord of exposed (that is, uncoated) that is pre-adjusted or coated cord (that is, can use or
The cord extracted out from its enhanced object) on determine；" being pre-adjusted " means cord (after the drying) basis before measuring
(temperature is 20 ± 2 DEG C to European standard DIN EN 20139；Relative humidity is 65 ± that at least 24 2%) are stored under normal atmosphere is small
When.
The count of yarn (or linear density) of secondary stock, stock or cord is surveyed at least three samples by weighing length
Fixed, each sample corresponds at least 5m length；The count of yarn provides that (weight in gram of 1000m products, remembers with tex：
0.111tex is equal to 1 danier).
Unless otherwise stated, according to standard ASTM D885 (2010) using INSTRON stretching testing machines with known
Mode measures stretched mechanical property (toughness, initial modulus, extension at break), and INSTRON stretching testing machines are provided with " 4D " type (use
In below 100daN fracture strength) or " 4E " type (being used for the fracture strength at least equal to 100daN) windlass type fixture.In 4D
In the case of fixture on 400mm initial length, and it will be tested on 800mm initial length in the case of 4E fixtures
Sample tractive force is subjected in the case where 0.5cN/tex classical is stretched with 200mm/min nominal rated speed.Given whole knots
Fruit is more than the average value of 10 measurements.When measuring property on yarn, before they are placed and stretched in fixture, this
A little yarns are subjected to being referred to as in known manner the very slight pre- twisting of " protective twist ", and it corresponds to about 6 degree and added
Spiral angle degree.
Toughness (fracture strength divided by the count of yarn) and initial elastic modulus (or Young's modulus) are provided or hundred with cN/tex
/ mono- newton/tex (notes：1cN/tex is equal to 0.111g/den (grams per denier)).Initial modulus is by power-extension curve
Tangent at origin represents that it is described as the linear of the power-extension curve occurred immediately after 0.5cN/tex classical is stretched
Partial gradient.Extension at break is as a percentage.
The exemplary of the present invention
The present invention textile cord may be advantageously used with strengthen the tire of all types of vehicles, particularly motorcycle,
Car or industrial vehicle, such as heavy vehicle, construction site vehicle, airborne vehicle, other transports or the tire for handling vehicle.
For example, Fig. 7 very schematically (being not drawn on) display through according to the present invention for example for passenger train
The radial section of the tire of type vehicle.
The tire 100 is included by crown reinforcement or the enhanced crown 102 of belt 106, two sidewalls 103 and two tires
Each in circle 104, these tyre beads is strengthened by bead 105.Crown 102 is covered by tyre surface, not shown in the schematic diagram.
Two beads that carcass reinforcement 107 is surrounded in each tyre bead are wound, the crimping 108 of the reinforcement 107 for example positioned at
Towards the outside of tire 100, tire 100 is shown here as being arranged on its wheel rim 109.
By per se known manner, carcass reinforcement 107 is by enhanced at least by being commonly referred to as " radial direction " textile cord
One rubber plies is constituted, it means that these cords are actually located in parallel to one another and extended to separately from a tyre bead
One tyre bead, in this way so as to which (perpendicular to the plane of the rotation axis of tire, it is located at two with circumference mid-plane
In the middle of tyre bead 104, and through the center of crown reinforcement 106) form the angle being included in 80 ° and 90 °.
In a way known, what belt 106 was for example stacked and intersected by least two is referred to as " work cord
The rubber plies of layer " or " triangle casing ply " are constituted, and the rubber plies are by being substantially parallel to one another the metal curtain of setting
Line strengthens, and is tilted relative to circumferential midplane, it is possible to these work casing plies and other rubber plies and/or knit
Thing is combined or not combined.These work casing plies have the premiere feature for assigning the high cornering stiffness of Outer Tyre.In this embodiment
In, belt 106 further comprises with the enhanced rubber for being referred to as " hoop casing ply " of enhancing silk thread for being referred to as " circumference "
Casing ply, " circumference " means that these enhancing silk threads set and substantially circumferentially gone around Outer Tyre effectively parallelly
Enter, so as to form the angle with circumferential midplane preferably being contained in the range of 0 to 10 °.It will bring ...back, these weeks
There is the premiere feature for preventing that crown from screwing out at high speeds to enhancing silk thread.
This tire 100 of the present invention has for example such essential feature：At least hoop casing ply of its belt (106)
And/or carcass reinforcement (107) includes the textile cord according to the present invention.According to another possible exemplary implementation of the present invention
Scheme, such as bead (105) can be wholly or partly by being made according to the textile cord of the present invention.
Rubber composition for these casing plies is such composition, and it is applied conventionally used for the surface of textile reinforcement
Cloth, is typically based on natural rubber or some other diene elastomers, and based on reinforcer such as carbon black, based on curing system and often
Use additive.Bonding force between the compound fabric cord of the present invention and the rubber layer of its covering is for example, by conventional bonding
Composition is provided, such as adhesive of RFL types or equivalent adhesive.
Due to its particular configuration, textile cord of the invention has the extension test property significantly improved, such as the example below
Property embodiment is shown.
In these exemplaries, first to based on nylon, artificial silk or aromatic polyamides according to or not basis
13 kinds of different textile cords altogether produced by the present invention carry out 6 kinds of different extension tests.
The property (" T " is control, and " C " is compares, and " I " is the cord according to the present invention) of the cord of each embodiment,
Material (" N " is nylon, and " R " is artificial silk, and " A " is aromatic polyamides) used, it is constructed and final properties are summarized in institute
In subordinate list 1.
Original yarn is obviously commercially available, such as in the case of nylon, and it is by Kordsa companies with title " T728 "
Sale or by Php with title " Enka 140HRT " or " Enka 444HRST " sell, in the case of artificial silk, by
With title, " C610-F Super2 " are sold, in the case of aromatic polyamides, by Teijin companies with title for Cordenka companies
" Twaron 1000 " is sold.
As already noted, toughness is the disruptive force relative to the count of yarn, and is represented with cN/tex.What is also indicated that is
Apparent toughness is (with daN/mm2Meter), disruptive force is with being expressed as in this caseApparent diameter it is relevant, it is surveyed according to following method
Amount.
Using such device, the device uses the receiver being made up of concentrator systems, photodiode and amplifier,
Make the shade of its silk thread that can be illuminated using measurement accuracy as 0.1 micron of directional light laser beam.This device is for example by Z-Mike
Company is commercially available with model " 1210 ".This method is included under 0.5cN/tex standard preload, will be already subjected to what is be pre-adjusted
Silk thread sample to be measured is fixed to the mobile station of motorization.By fastening wires to mobile station, silk thread is hung down with 25mm/s speed
It is straight in the movement of projection measurement system, and with laser beam orthogonal crossover.At least 200 times throwings are carried out on the silk thread that length is 420mm
Shadow is measured；The average value of these projection measurements represents apparent diameter
For each test, disruptive force, toughness and apparent toughness are also indicated with relative value, are used for using radix 100 each
Control cord in test.
Control cord (being expressed as in table 1 " T ") is all characterized as conventional double twist T1, T2 constructions；Other cords are (right
Than or according to the present invention cord) be all characterized as unconventional three twists T1, T2, T3 construction.However, only according to the present invention's
Cord combines three twist features and the initial yarn modulus more than 800cN/tex.
In order to which table 1 is more readily understood, it may be noted here that for example, control cord C1's is expressed as " the construction of N47/-/3/4 "
It is double twists (the T1, T2) cord obtained by 4 different stock twisting operations (T2, D2 or S), described 4 to mean the cord
Different stocks each by 3 nylon (N) yarns in the opposite direction (T1, D1 or Z) with the list of the 47tex count of yarn
Only twisting operation and it is previously prepared.
As a comparison, the construction (cord C2) for being expressed as " N47/1/3/4 " of the textile cord discussed is three twists
(T1, T2, T3) cord, it is obtained by the final twisting operation (T3, D2 or S) of 4 different stocks, and 4 different stocks are each
Previously prepared by the middle twisting operation (T2) on 3 stocks in the opposite direction (D1 or Z) from, each stock is by yarn
Line number 47tex single nylon (N) yarn is constituted, and the single nylon yarn is during the first twisting operation T1
The twisting in advance on themselves on identical direction D1 (Z).
6 examples C1, C3, C5, C7, C9 and C12 of control cord (being represented with " T ") are all characterized as double twist constructions；
They by with 150 to 300t/m (second) final twist (being represented with T2) (correspond to be changed to from 175 215 sth. made by twisting
COEFFICIENT K 2) combine 2,3 or 4 personal shares on direction D2 (S directions) and prepare.In a conventional manner, each of these strands has been
By yarn with (first) initial twist (being represented with T1) (in the case can be for 150 to 300t/m) on themselves in phase
It is previously prepared on opposite direction D1 (Z-direction).
According to the present invention cord (represented, and shown in table 1 with overstriking with " I ") 4 examples C8, C10, C11 and
C13 is all characterized as three twist T1, T2, T3 constructions (in these embodiments, Z/Z/S)；They by with 150 to 300t/m's
The final twist (being represented with T3) (correspond to and be changed to 215 twist factor K3 from 180) and the combination 3 or 4 on direction D2 (S directions)
Personal share and manufacture.According to the present invention, these strands each by with twist T2 (can be in the case 110 to
240t/m) combine 3 time stocks on D1 (Z-direction) in the opposite direction and previously prepared, each of these stock has been led in itself
Yarn is crossed to twist T1 (can be 40 to 120t/m in the case) on direction D1 (Z-direction) on themselves and make in advance
It is standby.
For according to 3 comparative examples C2, C4 and C6 of the cord (being represented with " C ") of the present invention, all of which is not characterized
To be constructed with three twist T1, T2, T3.They are strictly prepared according to according to the cord of the present invention, differ only in group
Yarn into these cords is all made by nylon, and it has the initial modulus Mi significantly lower than 800cN/tex.
The table 1 is studied in detail, it is initially noted that for all passing through nylon yarn (initial modulus is about 440cN/tex)
It is strong not along with fracture that the test 1 of progress changes into three twists (C2, C4 and C6) to test 3, from double twists (C1, C3 and C5)
Degree or other properties (And the count of yarn) any obvious change.
Conversely, for the yarn with the initial modulus Mi more than 800cN/tex, more specifically (Mi is about to artificial silk
1000cN/tex) or the test 4 that carries out of aramid yarns (Mi is about 4000cN/tex) is to test 6, it can be seen that from double
Twist construction (C7, C9 and C12) changes into three twist constructions (C8, C10, C11 and C13) unexpectedly along with following effect
Really, whole other specifications keep constant：
- fracture strength at least improves 5%, and this is very significant to those skilled in the art；
- and be combined with due to the apparent diameter that its height is specifically constructed and is substantially reducedAnd the count of yarn, these are clear and definite
Indicate the quality of the more preferable compactness and final reinforcement according to the cord of the present invention；
- all these finally bring apparent toughness to increase above 10%；
- in the case of the cord C13 according to the present invention, the increase of fracture strength and apparent toughness even can surpass respectively
Cross 15% and 25%.
Above-mentioned test passes through the volume that is carried out on two other difference textile cord C14 (control) and C15 (present invention)
Outer test (test 7 in table 1) is supplemented, and is specifically polyester (P) (Honeywell companies based on PEN types
“A701”；Yarn has the 110tex count of yarn, and it has about 1700cN/tex initial elastic modulus).
In the mode similar to configuration described above, control cord C14's is expressed as " the construction meaning of P110/-/3/2 "
It is double twists (the T1, T2) cord only obtained by the twisting operation (T2 is 260t/m, D2 or S) of 2 different stocks to refer to the cord,
Each of 2 different stocks passes through polyester (P) yarn in the opposite direction independent of 3 counts of yarn for 110tex
Twisting operation (T1 is 260t/m, D1 or Z) and it is previously prepared.
Relatively, for the construction for being expressed as " P110/1/3/2 " of the cord C15 according to the present invention, the fabric discussed
Cord is three twists (T1, T2, T3) cord, and it is obtained by the final twisting operation (T3 is 260t/m, D2 or S) of 2 different stocks
Arrive, each by middle twisting operation on 3 time stocks in the opposite direction (D1 or Z), (T2 has been 2 different stocks
155t/m) previously prepared, each time stock is made up of the count of yarn for 110tex 1 single polyester (P) yarn, described single
Polyester (P) yarn during the first twisting operation T1 (105t/m) on identical direction D1 (Z) on themselves
Twisting in advance.
Acquired results are had been incorporated into table 1.They are confirmed has compared to control cord C14, cord C15 of the invention
Superiority, fracture strength increases nearly 5%, and apparent toughness increases by 10%, and reduction along with apparent diameter and the count of yarn subtract
It is few.
Finally, according to the present invention, for given material and the given final twist, it now is possible to which improvement can be used to strengthen
Compactness property, fracture strength property and the toughness property of the textile cord of tire, and thus further optimize the tire
Structure.
Claims (22)
1. the textile cord (30,50) with least three kinds twists (T1, T2, T3), it includes in the direction d 2 adding with twist T3
Twist with the fingers at least N number of stock (20,20a, 20b, 20c, 20d) together, N is more than 1, per personal share by M time stocks (10,10a, 10b,
10c) constitute, M is more than 1, and secondary capital stock body is twisted one with twist T2 (T2a, T2b, T2c, T2d) on the direction D1 opposite with D2
Rise, each time capital stock body is made up of yarn (5), and the yarn (5) is in advance with twist T1 (T1a, T1b, T1c) in direction D1
On itself is twisted, wherein N is multiplied by least half of M yarn with the initial elastic modulus for being expressed as Mi, and Mi is more than
800cN/tex。
2. cord according to claim 1, wherein N change in the range of 2 to 6, preferably 2 to 4.
3. the cord according to any one of claim 1 or 2, wherein M change in the range of 2 to 6, preferably 2 to 4.
4. cord according to any one of claim 1 to 3, wherein N are multiplied by the sum of M yarn included in 4 to 25, excellent
Select in the range of 4 to 16.
5. cord according to any one of claim 1 to 4, wherein twist T1 is represented with twist m, it is included in 10 Hes
Between 350, preferably between 20 and 200.
6. cord according to any one of claim 1 to 5, wherein each stock has twist factor K1, it is included in 2 Hes
Between 80, preferably between 6 and 70.
7. cord according to any one of claim 1 to 6, wherein twist T2 is represented with twist m, it is included in 25 Hes
Between 470, preferably between 35 and 400.
8. cord according to any one of claim 1 to 7, wherein having twist factor K2 per personal share, it is included in 10 Hes
Between 150, preferably between 20 and 130.
9. cord according to any one of claim 1 to 8, wherein twist T3 is represented with twist m, it is included in 30 Hes
Between 600, preferably between 80 and 500.
10. cord according to any one of claim 1 to 9, it has twist factor K3, and it is included between 50 and 500,
It is preferred that between 80 and 230.
11. cord according to any one of claim 1 to 10, wherein T2 are more than T1.
12. the cord according to any one of claim 1 to 11, wherein T3 are more than T2.
13. cord according to claim 12, wherein T2 are included between 0.2 times of T3 and 0.95 times of T3, preferably exist
Between 0.4 times of T3 and 0.8 times of T3.
14. the cord according to any one of claim 1 to 13, wherein T1+T2's and the T3 included in 0.8 times and 1.2
Between T3 again, preferably between T3 and 1.1 times of 0.9 times of T3.
15. cord according to claim 14, wherein T1+T2's and equal to T3.
16. the cord according to any one of claim 1 to 15, has more than 800cN/ wherein whole N is multiplied by M yarn
Tex modulus Mi.
17. the cord according to any one of claim 1 to 16, wherein N be multiplied by M yarn at least half have be more than
1000cN/tex modulus Mi.
18. cord according to claim 17, wherein whole N is multiplied by M yarn with 1000cN/tex is more than, preferably
Modulus Mi more than 1200cN/tex.
19. cord as any one of claim 1 to 18 be used to strengthening the article as made from plastics or rubber or half into
The purposes of product.
20. with the enhanced article as made from plastics or rubber of the cord according to any one of claim 1 to 18 or half
Finished product.
21. the cord according to any one of claim 1 to 18 is used to strengthen the purposes of tire.
22. tire, it is strengthened with the cord according to any one of claim 1 to 18.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1462101 | 2014-12-09 | ||
| FR1462101A FR3029539B1 (en) | 2014-12-09 | 2014-12-09 | TEXTILE CABLE WITH AT LEAST TRIPLE TORSION |
| PCT/EP2015/078833 WO2016091809A1 (en) | 2014-12-09 | 2015-12-07 | Textile cord having an at least triple twist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107002354A true CN107002354A (en) | 2017-08-01 |
| CN107002354B CN107002354B (en) | 2019-11-01 |
Family
ID=52692796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580067302.3A Active CN107002354B (en) | 2014-12-09 | 2015-12-07 | Textile cord at least three kinds twists |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20170327976A1 (en) |
| EP (1) | EP3230505B1 (en) |
| JP (1) | JP6778191B2 (en) |
| KR (1) | KR102408760B1 (en) |
| CN (1) | CN107002354B (en) |
| FR (1) | FR3029539B1 (en) |
| WO (1) | WO2016091809A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112204180A (en) * | 2018-03-20 | 2021-01-08 | 米其林集团总公司 | Pneumatic tire comprising an improved aramid textile cord with at least a triple twist |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3029542B1 (en) | 2014-12-09 | 2017-07-28 | Michelin & Cie | TEXTILE CABLE HIGH MODULE AT AT LEAST TRIPLE TORSION |
| FR3034435B1 (en) | 2015-03-31 | 2018-03-02 | Compagnie Generale Des Etablissements Michelin | HYBRID REINFORCING ELEMENT WITH DIFFERENTIATED TORSIONS |
| JP7374916B2 (en) | 2018-03-20 | 2023-11-07 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Improved aramid fiber cord with at least triple twist |
| FR3102097A1 (en) | 2019-10-16 | 2021-04-23 | Compagnie Generale Des Etablissements Michelin | PNEUMATIC WITH REDUCED NOISE EMISSION AND ITS MANUFACTURING PROCESS |
| FR3102089A1 (en) | 2019-10-16 | 2021-04-23 | Compagnie Generale Des Etablissements Michelin | PNEUMATICS PRESENTING AN IMPROVED UNIFORMITY AND ITS MANUFACTURING PROCESS |
| KR102422987B1 (en) * | 2019-11-21 | 2022-07-19 | 더 굿이어 타이어 앤드 러버 캄파니 | A tire textile cord |
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| US1632201A (en) * | 1925-10-15 | 1927-06-14 | Goodyear Tire & Rubber | Pneumatic tire |
| US1708668A (en) * | 1928-01-17 | 1929-04-09 | Goodyear Tire & Rubber | Tire-fabric construction |
| US2116937A (en) * | 1935-12-11 | 1938-05-10 | Gen Tire & Rubber Co | Tire cord |
| US3607499A (en) * | 1969-02-24 | 1971-09-21 | Owens Corning Fiberglass Corp | Method of making power transmission belts |
| CN201132908Y (en) * | 2007-11-27 | 2008-10-15 | 中国水产科学研究院东海水产研究所 | Small dimension and high-strength three-ply polyethylene to-lay for deep sea cage |
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|---|---|---|---|---|
| NL7904496A (en) * | 1979-06-08 | 1980-12-10 | Akzo Nv | FIBER, WIRE BUNDLE AND ROPE OF POLY-P-PHENYLENE GRADE-LANGUAGE AMIDE. |
| JPH07144731A (en) * | 1993-11-22 | 1995-06-06 | Yokohama Rubber Co Ltd:The | Conveyor belt |
| JPH08324737A (en) * | 1995-05-26 | 1996-12-10 | Yokohama Rubber Co Ltd:The | Conveyor belt |
| JP3982870B2 (en) * | 1997-04-22 | 2007-09-26 | 横浜ゴム株式会社 | Conveyor belt |
| JP2000320616A (en) * | 1999-05-14 | 2000-11-24 | Mitsuboshi Belting Ltd | Core wire for transmitting belt and transmitting belt using the same |
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| AU2001246431A1 (en) * | 2000-02-16 | 2001-08-27 | Teijin Twaron Gmbh | Transmission belts comprising a cord with at least two fused yarns |
| FR2833277A1 (en) * | 2001-12-07 | 2003-06-13 | Michelin Soc Tech | METAL CABLE USABLE FOR REINFORCING A CARCASS FRAME OF A TIRE AND A PNEUMATIC TIRE |
| JP2005522367A (en) * | 2002-04-08 | 2005-07-28 | ミシュラン ルシェルシェ エ テクニク ソシエテ アノニム | Pneumatic tire crown reinforcement |
| JP2008223200A (en) * | 2007-03-15 | 2008-09-25 | Teijin Fibers Ltd | Reinforcing cord and pneumatic radial tire |
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2015
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- 2015-12-07 EP EP15807849.3A patent/EP3230505B1/en active Active
- 2015-12-07 JP JP2017530113A patent/JP6778191B2/en active Active
- 2015-12-07 CN CN201580067302.3A patent/CN107002354B/en active Active
- 2015-12-07 KR KR1020177015330A patent/KR102408760B1/en active IP Right Grant
- 2015-12-07 WO PCT/EP2015/078833 patent/WO2016091809A1/en active Application Filing
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| CN112204180A (en) * | 2018-03-20 | 2021-01-08 | 米其林集团总公司 | Pneumatic tire comprising an improved aramid textile cord with at least a triple twist |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107002354B (en) | 2019-11-01 |
| KR102408760B1 (en) | 2022-06-15 |
| US20170327976A1 (en) | 2017-11-16 |
| FR3029539B1 (en) | 2017-05-19 |
| JP6778191B2 (en) | 2020-10-28 |
| JP2017538049A (en) | 2017-12-21 |
| FR3029539A1 (en) | 2016-06-10 |
| KR20170093824A (en) | 2017-08-16 |
| WO2016091809A1 (en) | 2016-06-16 |
| EP3230505B1 (en) | 2019-07-17 |
| EP3230505A1 (en) | 2017-10-18 |
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