CN104918665B - The racket string of a musical instrument and its manufacture method - Google Patents
The racket string of a musical instrument and its manufacture method Download PDFInfo
- Publication number
- CN104918665B CN104918665B CN201480004749.1A CN201480004749A CN104918665B CN 104918665 B CN104918665 B CN 104918665B CN 201480004749 A CN201480004749 A CN 201480004749A CN 104918665 B CN104918665 B CN 104918665B
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- China
- Prior art keywords
- cored wire
- musical instrument
- sheath portion
- monofilament
- string
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
- A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
Abstract
The racket of the present invention is the string of a musical instrument of the braid type of the surface resin layer (5) on the outside of sheath portion twine (4) and sheath portion twine (4) comprising cored wire (2), on the outside of cored wire (2) with the string of a musical instrument (1), the flat monofilament (3) of heat molten type is flatly on cored wire (2), and cored wire (2) and sheath portion twine (4) are by heat bonding and integrated.The manufacture method of the string of a musical instrument be by the flat monofilament (3) of heat molten type flatly on cored wire (2), on its surface by sheath portion twine (4) band processed, the temperature system obtained being heated to line more than the fusing point of flat monofilament (3), melts flat monofilament (3) and cored wire (2) and sheath portion twine (4) progress heat bonding is integrated.Thus, there is provided a kind of to obtain the harder racket string of a musical instrument played sense with comfortably beat sound and loss of tension is smaller, height is durable.
Description
Technical field
The present invention relates to the racket of shuttlecock, tennis, squash etc. the synthesis string of a musical instrument.More particularly to suitable for shuttlecock
Harder sense of playing ball is with comfortably playing the racket string of a musical instrument that sound, loss of tension are small, durability is high.
Background technology
In the past, the racket synthesis string of a musical instrument as tennis, shuttlecock, squash etc., more proposing will be into thin monofilament
The string of a musical instrument that the string of a musical instrument of the outside winding of monofilament or multifilament for core or braiding (band processed) form.Such as in the shuttlecock string of a musical instrument, lead to
The string of a musical instrument for often using the thin monofilament for weaving the diameter 0.06mm of (band processed) as rubber-insulated wire or so on the multifilament of core to form.The thin string of a musical instrument
Generally play sense or to beat sound excellent, but exist durability it is poor between inscribe, so as to expect the exploitation of the string of a musical instrument of both satisfactions.
In patent document l, it is proposed that be coated with cored wire with copolymerizable thermosetting resin solution.In patent document 2, carry
Go out using material of the fusing point less than core material as sheath and made its melting adhered.In patent document 3, it is proposed that adhering resin is melted
Melt and carry out system band after being coated on cored wire to sheath part and make its hot melt adhesive.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2005-304678 publications
Patent document 2：Japanese Unexamined Patent Publication 60-86598 publications (Japan is real to be willing to clear 59-120410 entire disclosures)
Patent document 3：Japanese Unexamined Patent Publication 2007-177355 publications
The content of the invention
Invent problem to be solved
However, the method for carrying out the patent document l of resin processing to adhering resin to be dissolved in the liquid formed in solvent
In, due to using solvent, thus problem in terms of environment be present, further, it is necessary to select the solvent of insoluble wick fibers, can make
Resin is restricted.And then the concentration of resin or viscosity easily occur because of temperature change or solvent volatilization etc. in processing
Change, the problem of inequality for easily producing quality be present.In addition, in the case where cored wire is multifilament, resin solution enters to core
Line construction is internal, thus there is also surface resin quantitative change it is few the problem of.The hot melt adhesive method of patent document 2 is present without using molten
The advantages of agent, but have record more than 25% weight that preferable resin usage amount is the string of a musical instrument.Use in large quantities if so, then string
The diameter of line is thicker, moreover, adhering resin is almost helpless to intensity, thus is difficult to obtain thin and high intensity the string of a musical instrument, exists and beats
Sense, beat the problem of sound deteriorates.Patent document 3 discloses that resin melting is coated on cored wire, but it is relatively thin on the surface of thin core
And equably melt coating is technically difficult, in the case of coating weight excess, obtained in the same manner as above-mentioned patent document 2
The diameter of the string of a musical instrument obtained is thicker, and existing makes to beat the problem of sense deteriorates.
The present invention is above-mentioned conventional in order to solve the problems, such as, there is provided it is a kind of obtain it is harder beat sense with comfortably beat sound,
And the racket string of a musical instrument that loss of tension is small, height is durable.
The means used to solve the problem
The racket string of a musical instrument of the present invention is characterised by, its be sheath portion twine comprising cored wire, on the outside of the cored wire and
The racket string of a musical instrument of the braid type of surface resin layer on the outside of the sheath portion twine, wherein, the flat monofilament of heat molten type
Flatly on the cored wire, the cored wire and sheath portion twine are by heat bonding and integrated.
The manufacture method of the racket string of a musical instrument of the present invention is characterised by, the racket is comprising cored wire, described with the string of a musical instrument
The racket string of a musical instrument of the braid type of the surface resin layer on the outside of sheath portion twine and the sheath portion twine on the outside of cored wire,
The manufacture method of the racket string of a musical instrument includes：By the flat monofilament of heat molten type flatly on the cored wire, at it
Surface is heated to line the temperature more than fusing point of the flat monofilament by sheath portion twine band, by obtained system, makes institute
The melting of flat monofilament is stated and that the cored wire and sheath portion twine carried out into heat bonding is integrated, thereafter, in sheath portion plying
The outside of line forms surface resin layer.
Invention effect
The present invention can provide a kind of racket string of a musical instrument, and it is closed comprising the sheath portion twine on the outside of cored wire, cored wire and sheath portion
Surface resin layer on the outside of strand, by by the flat monofilament of heat molten type flatly on cored wire, and by cored wire and sheath
Twine of portion carries out heat bonding integration, so as to which the loss of tension when string of a musical instrument to be located to racket is small, can be compared when playing ball
Hard sense of beating beats sound with comfortable, and high durable.
Brief description of the drawings
Fig. 1 is the exploded perspective view of the racket string of a musical instrument in one embodiment of the invention.
Fig. 2A-C are the profiles of the flat monofilament in one embodiment of the invention.
Fig. 3 is the model utility explanation figure of the orthogonal friction test device used in embodiments of the invention.
Embodiment
For the melting adhered method without using solvent, it is important that make the usage amount pole of resin while cementability is kept
Smallization, the present inventor etc. are conceived to this point and studied with keen determination, as a result find, by by the flat of the heat molten type of thinner thickness
Shape monofilament is flatly wound and is coated in the outer surface of cored wire, and above-mentioned flat monofilament is carried out into heating melting, so that
Cored wire is integrated by heat bonding progress with sheath portion twine, so as to complete the present invention.It has also been found that more preferably, in order to carry
The high mutual cementability of sheath portion twine, it is important that by making hot melt adhesive temperature rise to the fusing point model of sheath portion twine
Enclose, so that the fiber surface softening of sheath portion twine, reciprocally partial melting bonding.
Surface resin layer of the present invention on the outside of the sheath portion twine and sheath portion twine on the outside of comprising cored wire, cored wire
In the racket string of a musical instrument of braid type, by the flat monofilament of heat molten type flatly on cored wire, and by cored wire and sheath portion
Twine carries out heat bonding integration.When string of a musical instrument weight is set into 100 weight %, the ratio of flat monofilament is preferably 2~
12 weight % scope.More preferably 2.5~8 weight %.As long as thin and high intensity string can be then obtained for above range
Line.
In the present invention, it is preferred to for by the melting of flat monofilament, except cored wire and the heat bonding one of sheath portion twine
Beyond body, the sheath portion twine in the outside also reciprocally melt bonded state of a part.Thus, sheath portion twine also glues each other
Connect, so as to seek the to play ball raising of sound and the raising of durability.
The fusing point of cored wire, sheath portion twine and flat monofilament is preferably as shown in following formula.As long as it is following formula, then flat
During the heat fusing of shape monofilament, the intensity decreases of cored wire and sheath portion twine can be prevented, obtain thin and high intensity the string of a musical instrument.
TM3 ＜ TM2≤TM1
Wherein, TM1 is the fusing point of cored wire, and TM2 is the fusing point of sheath portion twine, and TM3 is planar as the fusing point of monofilament.
The manufacture method of the present invention is by the flat monofilament of heat molten type flatly on cored wire, on its surface by sheath
Twine of portion band, obtained system is heated to more than the fusing point (TM3) of flat monofilament temperature with line, passes through flat list
Silk melting, by cored wire and sheath portion twine progress heat bonding it is integrated.The temperature of heat bonding be preferably more than TM3+30 DEG C and
Less than TM2+15 DEG C.More preferably more than TM3+40 DEG C and less than TM2+10 DEG C of temperature.As long as being above range, then make
While cored wire is with sheath portion twine heat bonding, can also making sheath portion twine, partial melting bonds each other.
Stretching ratio of the above-mentioned system with line during heat bonding is preferably 0.95~1.20 times.Further preferred stretching ratio
For 1.00~1.10 times.If carrying out heat bonding with above-mentioned stretching ratio, thermal contraction can be prevented under tension, can be obtained thin and high
The string of a musical instrument of intensity.
The thickness of flat monofilament is preferably 0.015~0.06mm, more preferably 0.02~0.05mm.Flat list
The flatness (width/thickness) of silk is preferably 1.5~100, and more preferably 2.5~80.As long as the thickness of flat monofilament
It is above range with flatness, then makes cored wire with can also make sheath portion twine part each other while sheath portion twine heat bonding
It is melt bonded.
By flat monofilament flatly on the surface of cored wire when, it has to be noted that it is as follows.
(1) when manufacturing flat monofilament, batched so that the coiling machine of transverse direction is untwisted, when being wound on cored wire,
Extracted out from the spiral body of transverse direction, it is not twisted.
(2) when manufacturing flat monofilament, when the coiling machine by longitudinal direction is batched to carry out batching twisting, rolling up
When being around on cored wire, extracted out from unidirectional spiral body, it is not twisted.
The flat monofilament being wound on cored wire is preferably 15~70% relative to the covering rate on above-mentioned cored wire surface, enters one
Step is preferably 20~50%.As long as being the scope, then while making cored wire with sheath portion twine heat bonding, can also sheath portion be set to pool capital
Partial melting bonds line each other.
The section shape of flat monofilament on cored wire is preferably to have irregular flat.As long as section shape
For bumps, then there is following feature：When after by flat monofilament on cored wire by sheath portion twine band, generation rubs
Wipe, so as to band processed securely, moreover, with can also improve bonding force on a small quantity.
Cored wire raw material are simultaneously not particularly limited, preferably high intensity polyamide filaments line.As polyamide, nylon can be enumerated
6th, the fatty polyamide system such as nylon66 fiber, NYLON610, nylon 612, nylon 46, nylon 56, nylon 410, nylon 12 resin, Buddhist nun
The semiaromatic polyamide composition system such as imperial 9T, nylon MXD 6, nylon 6T resin.The high intensity of nylon 6, nylon66 fiber can particularly preferably be enumerated
Multifilament threads.Commonly known high intensity polyamide thread is used as the industrial materials such as cotton tyre cord (tire cord).
The preferable filament number of cored wire is 2~10deci tex, and total fiber number is 1500~7000deci tex.Cored wire
It is 150~3500 that preferable long filament, which forms radical,.
When the fusing point of cored wire to be set to TM1 situation, TM1 is preferably more than 170 DEG C, more preferably more than 200 DEG C.This
Outside, in the present invention, peak temperature when fusing point is by being determined using differential scanning calorimetry (DSC) (DSC) under 20 DEG C/min of programming rate
The represented value of degree.The physical property of cored wire affects greatly to the physical property of the string of a musical instrument.The intensity of preferable multifilament for 5.0~
12.0cN/deci tex, elongation are 16~25% or so.Cored wire as needed also can be with other long filaments and use or mixed.
Cored wire is preferably to twist and use, this in convergence, proper circle, elongation of endless tow etc. be it is preferable,
As twisting count preferably using 30~300 times/m or so.In order to improve the mutual bonding of cored wire and assign suitably hard to cored wire
Degree, resin processing can also be carried out with the resin with cementability.In addition, it can also use the thermal bonding of low melting point with cored wire
Fiber.
As sheath portion twine (fusing point：TM2), preferably use by fusing point identical with the fusing point of cored wire or less than cored wire
And the long filament that the resin for being higher than the fusing point of the low-melting-point resin on core is formed.As raw material, preferably enumerate with
Cored wire identical polyamide series resin, by way of example, preferably using nylon 6, nylon66 fiber, NYLON610, nylon 612, nylon 46,
The fatty polyamides such as nylon 56, nylon 410, nylon 11, nylon 12 or their copolyamide.It is nylon in cored wire composition
66 or nylon 6 in the case of, as preferable sheath portion twine, be copolymerized using nylon 6 or nylon 6/66 copolymer, nylon 6/12
Thing etc..In addition, or be blended with nylon 6 5~80% or so the relatively low copolymer nylon of fusing point long filament.
It is excellent as sheath portion twine, preferably the filament number sheath portion twine thicker than the filament number of the multifilament of cored wire
The long filament for forming the monofilament doubling of l roots monofilament or 2~4 or so is selected to be used as twine.In the feelings that filament number is excessively thick
Under condition or long filament radical it is excessive in the case of, system band after diameter it is thicker thus not preferred.In addition, it is possible to use long filament
Section shape is oval or compressed cross section person.The Japanese Unexamined Patent Publication 2008-48867 of application is also preferably had pointed out using the applicant
Connection type profile long filament disclosed in number publication.The preferable filament number of sheath portion twine is 10~100deci tex left
It is right.Preferably system band is carried out using the twine of 8~32 filament numbers and sheath portion is made.
Flatly wound sheath portion twine band in the outside of cored wire after the flat monofilament of heat molten type.Braiding can use
Known method.Preferably use the pocket builder of such as 16 ingots.The rolling step of flat monofilament and the band processed of sheath portion twine
Process can be separated process, can also make its continuous.
The flat monofilament of heat molten type preferably using filament fiber of the fusing point less than cored wire and sheath portion twine and relative to
The composition filament fiber of the twine of cored wire and sheath portion has the raw material of good cementability.It is selected as preferable fusing point
(TM3) 100 DEG C of scope~180 DEG C, TM3<TM2≤TM1 resin is fusing point less than wick fibers, sheath portion plying line fiber
Resin.As the example of such resin, can enumerate makes selected from nylon 6, nylon66 fiber, nylon 12, nylon 11, NYLON610, nylon
Copolyamide system resin or Polyurethane system resin obtained from two or more in 612 grade amorphous nylons is copolymerized.It is more excellent
Elect the resin of low more than 30 DEG C of the fusing point than sheath portion plying line fiber as.Specifically, nylon 6/12, nylon 6/66/ can be enumerated
610th, nylon 6/66/12, nylon 6/12/610, nylon 6/12/612, nylon 12/612, nylon 6/66/610/12, nylon 6/
66/610/612 copolymer etc., but these are not limited to, can as hot-melt-bondable resin, hot-melt-bondable fiber
Appropriate selection uses from known copolymer nylon.
According to the research of the present inventor etc., even if in order to obtain the string of a musical instrument for playing sense, beating sound well and carefully also there is durability,
As described above, the amount of bonding agent composition and imparting state are important, as far as possible in number while sufficient cementability is assigned
It is important that imparting amount is reduced in amount.Therefore, the form in the present invention as the material of winding uses flat monofilament.In length
In the case of the more multifilament of silk radical, it is difficult to equably control the thickness or width of the lines under reeling condition, the string of a musical instrument occur
The thick part of diameter or there is space, it is thus not preferred.
The preferable filament number of flat monofilament is 10~150deci tex.Preferred filament number is 20~
100deci tex (dtex).Flat monofilament is preferably by l roots flatly on cored wire, but the bobbin for winding
(bobbin) more are alternatively.
Cored wire and sheath portion twine are carried out by the melting of flat monofilament heat bonding it is integrated after, closed in sheath portion
The outside of strand forms surface resin layer.Surface resin layer be by the way that the nylon resin being dissolved in solvent is impregnated or
Melt coating and formed.Nylon resin is simultaneously not particularly limited, and nylon 6, nylon66 fiber, nylon 46, NYLON610, nylon can be used
612nd, the semiaromatic polyamide composition such as the fatty polyamide such as nylon 11, nylon 12 and their copolyamide, nylon 9 T.Pass through
It is impregnated or coated with, color, outward appearance, durability can be improved.And then it can be coloured, be heat-treated as needed, the imparting of lettering, finish
Deng.
Then illustrated using accompanying drawing.Fig. 1 is the exploded perspective of the racket string of a musical instrument 1 in one embodiment of the invention
Figure.The racket is flatly pooled capital the flat monofilament 3 of heat molten type with the string of a musical instrument 1 on cored wire 2, and by cored wire 2 and sheath portion
Line 4 carries out heat bonding integration (in order that figure is it can be readily appreciated that 3 flat monofilaments represented illustrate the shape before melting).In sheath
The surface of twine of portion 4 is formed with surface resin layer 5.Figure 1 illustrates the example that cored wire 2 is multifilament, but it is alternatively monofilament.
The radical of multifilament also can be selected arbitrarily.In addition, sheath portion twine 4 shows the example of 4 circular connection monofilament of section, but
Or 2~8 connections.Or 2~4 monofilament can also be arranged side by side.
In the present invention, flat monofilament is preferably selected from multiple section circles and connects into the shape of a row, multiple sections circle
At least one of the smooth concaveconvex shape of connection and surface and elliptical shape.Section shape for example, shown in Fig. 2A-C.Figure
2A is the flat monofilament 6 that 5 section circles are formed by connecting, and flatness L/D is about 5.Wherein, L represents width, and D represents thickness.Example
Such as L=0.165mm, D=0.035mm.Fig. 2 B are the smooth concavo-convex flat monofilament 7 in surface.Fig. 2 C are surface no concave-convex
Elliptoid flat monofilament 8.
Embodiment
Specifically illustrated using embodiment below.Furthermore the present invention is not limited to following embodiments.Following
In embodiment, the evaluation of monofilament and the string of a musical instrument is carried out in following methods.
<Physical property test>
The assay method of intensity, knot strength, elongation according to JIS L1013.Diameter uses micrometer, makes monofilament somewhat
Determined 5 times while rotation, average value is set to diameter.
<Resilience, rigidity>
In the case of for the shuttlecock string of a musical instrument, 1 string of a musical instrument with 20 pounds of tension force stretching and is fixed into both ends (between clamping with fixture
It is divided into 30cm).Using the hammer of pendulum-type, in side of the central portion at right angles, in the horizontal direction to be collided relative to the string of a musical instrument of the string of a musical instrument
Formula is laid from fixed position, following with the movement (displacement) of the string of a musical instrument of l/1000 second measuring space collision rifts and stress, utilization
Computational methods obtain rigidity (pounds per inch) and rebound degree (%).
Rigidity=maximum stress P (pound)/horizontal direction maximum displacement L (inch)
Rebound degree (%)：(S2/S1)×100
S1：The area of part (toward portion) in stress-strain (displacement) curve (round) from collision to maximum displacement
S2：Load-deformation curve it is higher to the area rigidity value of zero shift (returning portion) from maximum displacement position, then it represents that
Harder in the state of racket is located at, numerical value is more low, represents more soft.
Rebound degree is higher, then it represents that energy loss in the collision bigger (bibliography of resilience less：Rod Cross
“Laboratory testing of tennis string”Sports Engineering(2000)3、219-230)。
<Durability l>Orthogonal friction
Illustrated using the orthogonal friction test device 10 shown in Fig. 3.Horizontal direction of the string of a musical instrument 11 along arrow P is being applied
Add and fix both ends (13a, 13b) in the state of 30 pounds of tension force.Make the identical string of a musical instrument 12 with the above-mentioned string of a musical instrument 11 in right-angled horizontal side
Intersect upwards, one end 12a is fixed, and is applied 2kg load 14 to other end 12b and is made its suspension.The string of a musical instrument 12 is in same level
On at right angles to hang on both ends through the fixed string of a musical instrument 11, be pulled downwardly and stretch in vertical direction under the weight of load.To this
In the state of the string of a musical instrument 12 applies load, as shown by arrow Q, come and go it on level right angle direction with the 1 second speed for coming and going 1 time
Mobile 10mm.Evaluated with the fluffing state of the string of a musical instrument 12 after double rubs.The string of a musical instrument (12) is cut off or fluffing becomes big and rubbed
Number is wiped to be evaluated.The less situation that will be fluffed after 200 frictions is set to more than 200 times.
<Durability 2>Endurancing under shuttlecock strike
The string of a musical instrument is located at racket with 25 pounds, will be from shuttlecock (shuttlecock) beating unit (SIBOASI companies
Shuttlecock shooter) shuttlecock (speed about 150km/ hours, 5 seconds are spaced) that impacts out with 50cm distance, 30 degree
Angle continuously hit to racket, with the string of a musical instrument cut off number evaluated.
<Loss of tension>
For the shuttlecock string of a musical instrument situation when, apply 25 pounds of load, fixed both ends.Obtain after room temperature placed for 1 week
Stress (F) relative to initial load ratio (conservation rate).
Tension force conservation rate (%)：(stress F/25 after placement) × 100
<Play sound evaluation>
5 grades for implementing to be carried out by 4 advanced players are evaluated.Under the racket and tension force poundage that examination hitter usually uses
Only change the string of a musical instrument to be evaluated, represented with average.
5 understand and comfortably beat sound
4 somewhat comfortably beat sound
3 general (beating sound under the usually used string of a musical instrument, tension force horizontal)
2 dozens of sound are slightly worse
1 dozen of statement significant difference
(embodiment l~5)
The shuttlecock string of a musical instrument is manufactured with following process.
(1) cored wire
As cored wire, the long silk thread (fusing point for the trade name " Promilan " (nylon66 fiber) for manufacturing Toray companies is used
260 DEG C, form radical 342, total fiber number 2340deci tex) carry out line obtained from 200 times/m of Z twisting.
(2) the flat monofilament and rolling step of heat molten type
The low melting point copolymer nylon that is manufactured using Toray companies, trade name " CM8000 " (137 DEG C of fusing point), pass through melting
The flat monofilament for the shape that 5 section circles as Fig. 2A are formed by connecting is made in spinning.Flatness L/D is about 5, L=
0.165mm, D=0.035mm, fiber number are 49deci tex.1 flat monofilament is changed into volume under conditions of shown in table l
Cored wire surface is flatly wound in around number.The weight of the monofilament of winding, monofilament are coated to relative to the area on cored wire surface
Rate is shown in table 1 (herein, winding weight is actual measurement, and covering rate is obtained according to weight by calculating).Up- coiler is installed on band processed
The cored wire supply portion of machine, is continuously wound and band processed.
(3) sheath portion twine and system band process
As sheath portion twine, copolymer nylon (Mitsubishi エ Application プ ラ company systems, the trade name of nylon 6 and nylon66 fiber are used
" 2030J ", nylon 6/66=95/5；215 DEG C of fusing point) and the section shape that 4 circles are formed by connecting is made by melt spinning
Monofilament.Flatness L/D is about 4, L=0.04mm, D=0.16mm, and fiber number is 64deci tex, intensity 4.8N, and elongation is
31.5%.The monofilament uses 16 in terms of each, using the pocket builder of 16 ingots, is flatly being wound with above-mentioned flat monofilament
The surface of cored wire woven (band processed).Physical property of the system with line is shown in table l.
(4) heat bonding process
The hot-air drying device of 215 DEG C of band logical excess temperature after above-mentioned band processed is set to be heat-treated for 40 seconds.Stretching ratio is set
For 1.03.By the heat treatment, the melting of low melting point flat monofilament, cored wire and sheath portion twine progress heat bonding and it is integrated.Separately
Outside, it can be seen that sheath portion twine (rubber-insulated wire) it is melt bonded.Physical property after heat treatment is shown in table l.By heat treatment and can
See increase, the reduction of elongation of intensity.
(5) surface resin layer formation process
Band after above-mentioned heat bonding is impregnated in nylon 46 phenol solution 1 time, is dried at 90 DEG C and obtains shuttlecock
Use the string of a musical instrument.The exploded perspective of the string of a musical instrument obtained is illustrated in Fig. 1.Wherein, in order that construction is readily appreciated that, the core state of figure
Show the reeling condition before heat treatment.
(comparative example 1)
Except not by low melting point monofilament in embodiment l on cored wire in addition to, made under the same conditions with embodiment l
The string of a musical instrument made comparisons.The evaluation result of product is shown in table 2.Compared with embodiment l, durability, tension force retentivity, beat sound compared with
Difference.
(comparative example 2)
Core line is changed into the flat monofilament of above-described embodiment, by the single thread 10d of 5 same resins circle section long filament simultaneously
Yarn, wound under core winding condition similarly to Example 1, make the string of a musical instrument under the same conditions in addition.Result is shown
In table 2.Compared with embodiment l, durability, tension force conservation rate, to beat sound poor.Moreover, the long filament of 5 winding lines is not necessarily in l layers
Flat arrange, it can be seen that multi-layer portion or distortion.
(comparative example 3)
With commercially available low melting point heat bonding polyamide multifilament line (Fujiette company system, trade name " Joiner " 50T-10f,
130 DEG C of fusing point) core line is used as, wind similarly to Example 1, make the string of a musical instrument under the same conditions in addition.By result
It is shown in table 2.Compared with Example 1, durability, tension force maintenance, to beat sound poor.
(comparative example 4)
System same as Example 4 is less than with line to 130 DEG C of heat of the fusing point of the flat monofilament on core
Processing, in addition, makes the string of a musical instrument under the same conditions.Show the result in table 2.Observed if the string of a musical instrument is decomposed, core monofilament
Easily untie, almost do not see heat bonding.The durability of the string of a musical instrument, particularly orthogonal friction are relatively low result.
(embodiment 6)
Until heat treatment step uses the string of a musical instrument same as Example 4, the NYLON610 as surface resin working fluid is used
Phenol solution makes the string of a musical instrument.Product evaluation result is shown in table 1.Product evaluation result is good similarly to Example 4.
(embodiment 7)
Low melting point nylon, trade name " 7128B " (the nylon 6/12=40/60 manufactured using Yu Buxingchan companies；Fusing point
130 DEG C), the flat monofilament of the shape that 5 sections circles are formed by connecting is made up as Fig. 2A of melt spinning.Flatness L/
D is about 5, L=0.165mm, D=0.035mm, and fiber number is 51deci tex., should by l roots under conditions of same as Example 4
Flat monofilament is flatly wound in cored wire surface.By the weight of the monofilament wound, monofilament relative to cored wire surface area
Covering rate is shown in table 1.As sheath portion twine, copolymer nylon (the Mitsubishi エ Application プ ラ that nylon 6 is 75% and nylon 6/66 are used
Company, trade name " 2430J " nylon 6/66=80/20；190 DEG C of fusing point) it is 25% blending resin, and pass through melt spinning system
The monofilament for the section shape being formed by connecting into 4 circles.Flatness L/D is about 4, D=0.04mm, L=0.15mm, and fiber number is
62deci tex, intensity 4.9N, elongation 29.9%.It is that twine's use is total 16 using 1 monofilament, utilizes 16 ingots
Pocket builder, woven (band processed) on the surface for the cored wire for being flatly wound with above-mentioned flat monofilament.The thing with line will be made
Property is shown in table l.The hot-air drying device of 220 DEG C of band logical excess temperature after above-mentioned band processed is set to be heat-treated for 40 seconds.Stretching ratio
It is set to 1.02.By the heat treatment, cored wire and sheath portion twine carry out heat bonding and integrated.In addition, it can be seen that rubber-insulated wire melts
Melt bonding.Physical property after heat treatment is shown in table l.The nylon 46 solution same as Example 4 for being used as surface resin is carried out
Surface is coated with, and makes the shuttlecock string of a musical instrument.
The evaluation result of various embodiments above and the shuttlecock string of a musical instrument of each comparative example is shown in table l~table 2.In table l~table 2
Sentence be described as follows.
(1) " rubber-insulated wire " is sheath portion twine.
Rubber-insulated wire S-1：The monofilament that N6/66 copolymerization, 4 round sections connect
Rubber-insulated wire S-2：N6 (Mitsubishi エ Application プ ラ company systems, " 1035 ") 75wt%, N6/66=80/20 is copolymerized (Mitsubishi's エ Application
プ ラ company systems, " 2430J "：190 DEG C of fusing point) 25wt% blending, the monofilament of 4 round section connections
(2) " core line " is the flat monofilament of heat molten type.
M-1：Low melting point nylon is copolymerized, the monofilament of 5 round section connections
M-2：Low melting point nylon is copolymerized (N6/12=40/60, space portion nylon company system, " 7128B ", 130 DEG C of fusing point), 5
The monofilament of circle section connection
M-3：By 5 round section long filament single thread 10deci tex doublings
M-4：Multifilament, the manufacture of Fujiette company, " Joiner " 50T-10f (130 DEG C of low melting point nylon)
(3) " low melting point composition " is the low melting point hot melt flat monofilament resin component on core.Contain in the string of a musical instrument
Composition % is the numerical value that the weight (g/m) of core amount of resin (g/m) divided by product per unit calculates gained in table.But length
Elongation on direction is 3% or so, thus is not considered.
(4) metewand of the melting of core line
A：Fully melting.
B：It can be seen that melting but it is insufficient.
C：It can't see melting.
(5) surface resin is processed
N46 resins：18wt% nylon/phenol solution
N610 resins：18wt% nylon/phenol solution
Table 1
Table 2
As can be observed from the foregoing situations below..
(1) embodiment 1~7 is compared with comparative example l, and durability, tension force retentivity, to beat sound excellent.This is due to embodiment 1
By low melting point flat monofilament on cored wire, heating melts above-mentioned flat monofilament, so as to which cored wire and sheath portion be pooled capital
Line carries out heat bonding integration, and on the other hand, above-mentioned flat monofilament is not used in comparative example l.
(2) embodiment l~7 compared with comparative example 2~3 durability, tension force retentivity, to beat sound excellent.This is due to compare
Example 2~3 replaces above-mentioned flat monofilament and winds the doubling of circle section long filament, but is not arranged in flat.
(3) embodiment l~7 compared with comparative example 4 durability, tension force retentivity, to beat sound excellent.This is due to comparative example 4
Do not make above-mentioned flat monofilament hot melt adhesive, thus can not realize that cored wire is integrated with sheath portion twine.
(4) confirm that embodiment l~7 are that loss of tension when the string of a musical instrument to be located to racket is small, ratio can be obtained when playing ball
Harder sense of beating plays sound and the high durable racket string of a musical instrument with comfortable.
Industrial applicability
The string of a musical instrument of the present invention is suitable to shuttlecock, but also useful to the racket of hand-ball tennis, soft tennis, squash etc..
Symbol description
The 1 racket string of a musical instrument
2 cored wires
3rd, 6,7,8 flat monofilament
4 sheath portion twines
5 surface resin layers
10 orthogonal friction test devices
11st, 12 string of a musical instrument
13a, the 13b string of a musical instrument fix tool
14 loads
Claims (14)
1. a kind of racket string of a musical instrument, it is characterised in that it is sheath portion twine comprising cored wire, on the outside of the cored wire and described
The racket string of a musical instrument of the braid type of surface resin layer on the outside of sheath portion twine,
Wherein, flatly on the cored wire, the cored wire passes through flat the flat monofilament of heat molten type with sheath portion twine
The melting of flat-shaped monofilament and heat bonding is integrated,
The fusing point of the cored wire, the sheath portion twine and the flat monofilament is expressed from the next,
TM3 ＜ TM2≤TM1
Wherein, TM1 is the fusing point of cored wire, and TM2 is the fusing point of sheath portion twine, and TM3 is planar as the fusing point of monofilament.
2. the racket string of a musical instrument according to claim 1, wherein, the ratio of the flat monofilament for string of a musical instrument weight 2~
12 weight %.
3. the racket string of a musical instrument according to claim 1, wherein, by the melting of the flat monofilament, except cored wire with
Beyond the heat bonding integration of sheath portion twine, the sheath portion twine in outside is also the mutually melt bonded state of a part.
4. the racket string of a musical instrument according to claim 1, wherein, the flat monofilament is to be connected into selected from multiple sections circle
At least one of shape, the concaveconvex shape that multiple sections circle connects and surface is smooth and the elliptical shape of one row shape.
5. the racket string of a musical instrument according to claim 1, wherein, the thickness of the flat monofilament is 0.015~0.06mm,
Flatness is that width/thickness is 1.5~100.
6. the racket string of a musical instrument according to claim 1, wherein, the flat monofilament on the cored wire is relative to institute
The covering rate for stating cored wire surface is 15~70%.
7. the racket string of a musical instrument according to claim 1, wherein, the flat monofilament is untwisted and wound on the cored wire
Surface.
8. the racket string of a musical instrument according to claim 1, wherein, the cored wire is multifilament, the monofilament of the sheath portion twine
Fiber number is thicker than the filament number of the multifilament of cored wire, and the sheath portion twine is 1 monofilament or is by 2~4 monofilament doublings
Obtained from long filament.
9. the racket string of a musical instrument according to claim 1, wherein, the filament number of flat monofilament is 10~150deci
Tex scope.
10. a kind of manufacture method of the racket string of a musical instrument, it is characterised in that the racket is comprising cored wire, the cored wire with the string of a musical instrument
The racket string of a musical instrument of the braid type of surface resin layer on the outside of the sheath portion twine in outside and the sheath portion twine, it is described
The manufacture method of the racket string of a musical instrument includes：
By the flat monofilament of heat molten type flatly on the cored wire,
On its surface by sheath portion twine band,
The fusing point of the cored wire, the sheath portion twine and the flat monofilament is expressed from the next,
TM3 ＜ TM2≤TM1
Wherein, TM1 is the fusing point of cored wire, and TM2 is the fusing point of sheath portion twine, and TM3 is planar as the fusing point of monofilament,
The temperature obtained system being heated to line more than the fusing point of the flat monofilament, make the flat monofilament melt and
It is integrated that the cored wire and sheath portion twine are subjected to heat bonding,
Thereafter, surface resin layer is formed in the outside of the sheath portion twine.
11. the manufacture method of the racket string of a musical instrument according to claim 10, wherein, the temperature of the heat bonding is TM3+30
More than DEG C and less than TM2+15 DEG C, while making the cored wire with the sheath portion twine heat bonding, the sheath portion is set to pool capital
Partial melting bonds line each other,
Wherein, TM2 is the fusing point of sheath portion twine, and TM3 is planar as the fusing point of monofilament.
12. the manufacture method of the racket string of a musical instrument according to claim 10, wherein, the system band line during heat bonding
Stretching ratio be 0.95~1.20 times.
13. the manufacture method of the racket string of a musical instrument according to claim 10, wherein, the thickness of the flat monofilament is
0.015~0.06mm, flatness are that width/thickness is 1.5~100.
14. the manufacture method of the racket string of a musical instrument according to claim 10, wherein, the flat on the cored wire
Monofilament relative to the cored wire surface covering rate be 15~70%, the flat monofilament it is untwisted and wound on the cored wire
Surface.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013088572 | 2013-04-19 | ||
| JP2013-088572 | 2013-04-19 | ||
| PCT/JP2014/055470 WO2014171203A1 (en) | 2013-04-19 | 2014-03-04 | Racquet string and method for producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104918665A CN104918665A (en) | 2015-09-16 |
| CN104918665B true CN104918665B (en) | 2018-03-09 |
Family
ID=51702055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480004749.1A Expired - Fee Related CN104918665B (en) | 2013-04-19 | 2014-03-04 | The racket string of a musical instrument and its manufacture method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5593005B1 (en) |
| CN (1) | CN104918665B (en) |
| TW (1) | TWI593446B (en) |
| WO (1) | WO2014171203A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6744627B2 (en) * | 2016-02-24 | 2020-08-19 | ユニチカ株式会社 | String for gut |
| CN106317868A (en) * | 2016-08-30 | 2017-01-11 | 安徽翰文运动用品股份有限公司 | String for badminton racket |
| JP2018187163A (en) * | 2017-05-09 | 2018-11-29 | 株式会社ゴーセン | Racket string and manufacturing method thereof |
| EP3669022B1 (en) * | 2017-08-18 | 2022-03-09 | Larsen Strings A/S | Musical string |
| JP7104958B2 (en) * | 2017-10-11 | 2022-07-22 | ユニチカ株式会社 | tie |
| WO2020031529A1 (en) * | 2018-08-10 | 2020-02-13 | 株式会社ゴーセン | Racket string and method of manufacturing same |
| CN109603118B (en) * | 2018-11-27 | 2021-03-30 | 石狮市鸿兴文体器材有限公司 | Badminton racket string and preparation method thereof |
| CN110760967A (en) * | 2019-11-11 | 2020-02-07 | 南通新帝克单丝科技股份有限公司 | Racket string and green preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288083A (en) * | 1999-08-24 | 2001-03-21 | 纳幕尔杜邦公司 | Modificatin of string made of fluorine polymer used for string sports articles and string of stringed instrument |
| CN1395001A (en) * | 2001-07-11 | 2003-02-05 | 耀亿工业股份有限公司 | Abrasion-proof high-elasticity strings structure and its production method |
| CN101130138A (en) * | 2006-08-24 | 2008-02-27 | 高纤股份有限公司 | Fibril of racket thread, racket using the fibril and method of manufacturing the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4183200A (en) * | 1977-10-03 | 1980-01-15 | Pepsico, Inc. | Tennis racket string |
| JPS60135150U (en) * | 1984-02-20 | 1985-09-07 | ユニチカ株式会社 | Gatsuto |
| JPH08280850A (en) * | 1995-04-12 | 1996-10-29 | Unitika Ltd | String |
-
2014
- 2014-03-04 CN CN201480004749.1A patent/CN104918665B/en not_active Expired - Fee Related
- 2014-03-04 JP JP2014041719A patent/JP5593005B1/en not_active Expired - Fee Related
- 2014-03-04 WO PCT/JP2014/055470 patent/WO2014171203A1/en active Application Filing
- 2014-03-18 TW TW103110081A patent/TWI593446B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288083A (en) * | 1999-08-24 | 2001-03-21 | 纳幕尔杜邦公司 | Modificatin of string made of fluorine polymer used for string sports articles and string of stringed instrument |
| CN1395001A (en) * | 2001-07-11 | 2003-02-05 | 耀亿工业股份有限公司 | Abrasion-proof high-elasticity strings structure and its production method |
| CN101130138A (en) * | 2006-08-24 | 2008-02-27 | 高纤股份有限公司 | Fibril of racket thread, racket using the fibril and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104918665A (en) | 2015-09-16 |
| JP2014223279A (en) | 2014-12-04 |
| JP5593005B1 (en) | 2014-09-17 |
| TWI593446B (en) | 2017-08-01 |
| TW201505691A (en) | 2015-02-16 |
| WO2014171203A1 (en) | 2014-10-23 |
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