JP4504585B2 - Yarn composed of polyolefin filament yarn and polyacetal filament yarn - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a yarn particularly suitable for fishing lines, which is a combination of a filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin.
[0002]
[Prior art]
In recent years, as fishing methods for fishing have become more sophisticated, higher performance has been required for fishing lines, and the appearance of fishing lines with higher strength and lower elongation has been desired. On the other hand, a fishing line made of a polyolefin resin, particularly an ultra-high molecular weight polyethylene resin, has been developed as a fishing line having high strength, low elongation, and excellent wear resistance, flex resistance and weather resistance.
However, since these fishing lines have a relatively low specific gravity, they are easily affected by wind and tides, and it is not possible to quickly and accurately put fishing lines into shelves where fish are located at high tides or deep waters. Specific gravity was desired. In response to this demand, a fishing line is known that combines a yarn made of polyolefin resin and a yarn made of wholly aromatic polyester resin [for example, Vectran (trade name, manufactured by Kuraray Co., Ltd.). However, such fishing lines have poor light resistance and are difficult to use for a long time.
Further, a fishing line made of a polyolefin resin has no so-called stiffness and has a problem that it is easily entangled with a fishing rod guide, for example.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide a yarn that can achieve high specific gravity and impart rigidity to a filament yarn made of a polyolefin resin at once.
Another object of the present invention is to provide a yarn having high strength, low elongation, and excellent wear resistance and light resistance.
Another object of the present invention is to provide a fishing line having practical specific gravity and stiffness as a fishing line.
[0004]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above object, the present inventors have made polyacetal resin because polyacetal resin has a specific gravity of about 1.45 and, among resins used as fibers, has a high specific gravity after polyvinylidene chloride. The inventors have obtained the knowledge that a high specific gravity of a yarn made of polyolefin resin can be achieved by combining filament yarns. Moreover, since the filament yarn which consists of polyacetal resin has rigidity, it also discovered that rigidity could be given to the thread | yarn consisting of polyolefin resin by the said combination. Furthermore, unlike the conventional yarns described above, the yarn combined as described above is excellent in light resistance and wear resistance, so that it is unexpected that it can sufficiently withstand long-term use. Obtained knowledge.
The present inventors have further studied and completed the present invention.
[0005]
That is, the present invention
(1) A combination of a filament yarn made of polyolefin resin and a filament yarn made of polyacetal resin. In other words, the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin are simply aligned yarns, twisted twisted yarns or stringed yarns A yarn characterized by
(2) Combining filament yarn made of polyolefin resin and filament yarn made of polyacetal resin, this A filament yarn made of polyolefin resin and a filament yarn made of polyacetal resin are fused and integrated with a low temperature thermal adhesive resin having a melting point lower than that of polyolefin resin and polyacetal resin. It is characterized by Yarn,
(3) A filament yarn in which at least one of a filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin is coated or impregnated with a low temperature thermal adhesive resin having a melting point lower than that of the polyolefin resin and the polyacetal resin. The yarn according to (2) above,
(4) A core yarn made of a low-temperature heat-adhesive resin having a melting point lower than that of the polyolefin resin and the polyacetal resin, and a filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin around the core yarn The yarn according to (2) above, comprising an outer thread portion formed by stringing so as to be alternately arranged in a cross-sectional shape,
(5) The low-temperature heat-adhesive resin is a polyolefin copolymer, a polyester copolymer or a polyamide copolymer (2) to (4) above One of The yarn described in
(6) The yarn according to any one of (2) to (5), wherein the melting point of the low temperature thermal adhesive resin is in the range of 50 to 160 ° C.
(7) The filament yarn made of polyolefin resin is an ultrahigh molecular weight polyethylene filament yarn (1) to (6) above One of The yarn described in
(8) The above-mentioned (1) to (7), wherein the content weight ratio of the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin is 1 to 20: 1. One of The yarn described in
(9) A fishing line comprising the yarn according to any one of (1) to (8),
About.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The “filament yarn” in the present invention may have any form of, for example, a multifilament, a monofilament, or a monomultifilament. Here, the mono multifilament usually refers to a filament yarn obtained by combining a plurality of monofilament yarns.
The filament yarn used in the present invention preferably has a single yarn fineness of about 1 to 10 d and a total fineness of about 40 to 3000 d.
[0007]
The polyolefin resin used in the present invention may be a known resin such as polyethylene and polypropylene, but an ultrahigh molecular weight polyethylene resin exhibiting excellent mechanical properties such as high strength is particularly preferable. Here, the ultra-high molecular weight polyethylene resin usually has a molecular weight of about 500,000 or more, preferably about 1 million or more. In addition to homopolymers, lower α-olefins having about 3 to 10 carbon atoms. For example, a copolymer with propylene, butene, pentene, hexene and the like is also included. In the case of copolymers of ethylene and lower α-olefins, the proportion of the latter is about 0.1 to 20 on average per 1000 carbon atoms, preferably about 0.5 to 10 on average. Polymers are preferred.
[0008]
A method for producing a filament yarn from the polyolefin resin may be a method known per se. For example, a method for producing an ultrahigh molecular weight polyethylene filament yarn is disclosed in Japanese Patent Application Laid-Open No. 55-5228 or Japanese Patent Application Laid-Open No. 55-107506. More specifically, for example, ethylene is first used as a transition metal. Ultra high molecular weight polyethylene is obtained by slurry polymerization in an organic solvent in the presence of a catalyst of an elemental compound and a metal hydride or organometallic compound such as an alkali metal or alkaline earth metal, and the obtained ultra high molecular weight For example, a filament is obtained by blending an ethylene polymer with, for example, a diluent or mixing waxes at room temperature, melt-extruding, and then drawing (for example, at a magnification of about 5 to 80 times).
[0009]
The filament yarn made of polyolefin resin in the present invention is preferably a low elongation and high strength filament yarn having physical properties of a tensile strength of about 20 g / d or more and a breaking elongation of about 8% or less. In the present invention, commercially available filament yarns such as Dyneema (registered trademark, manufactured by Toyobo Co., Ltd.) may be used. Here, the tensile strength is measured by a method according to JIS L 1013 “Chemical Filament Yarn Test Method”, for example, a measuring device known per se, for example, universal testing machine Autograph AG-100kNI (trade name, manufactured by Shimadzu Corporation). Easy to measure. Also, the elongation at break can be easily measured with the above tester.
[0010]
As the polyacetal resin used in the present invention, for example, a resin known per se having an acetal bond such as polyoxymethylene in the main chain may be used. The manufacturing method may follow a method known per se, and for example, a commercially available resin such as Iupital (trade name, manufactured by Mitsubishi Engineering Plastics) or Tenax (trade name, Asahi Kasei) may be used.
[0011]
A method for producing a filament yarn from the polyacetal resin may be a method known per se. For example, the following manufacturing method is mentioned as a preferable aspect. That is, the polyacetal resin is supplied to an extruder having a desired diameter, spun from a spinneret, and cooled in a water bath. At this time, the desired thickness can be adjusted by changing the rotation speed of the gear pump. Subsequently, the spun yarn is drawn (for example, about 5.2 times at about 195 ° C.) and then heat treated at about 200 ° C. to obtain a monofilament yarn.
[0012]
The filament yarn made of a polyacetal resin used in the present invention preferably has physical properties with a tensile strength of about 4 g / d or more and a breaking elongation of about 10% or less. Note that the tensile strength and the breaking elongation can be easily measured as described above.
[0013]
The yarn according to the present invention is characterized by combining a filament yarn made of polyolefin resin and a filament yarn made of polyacetal resin. The structure of the yarn according to the present invention is not particularly limited as long as it has such a feature, but it may be a structure in which the two types of filament yarns are simply aligned, or a twisted yarn that has been twisted. Alternatively, it may have a structure of a stringed string made by stringing.
[0014]
The above-mentioned twisted yarn according to the present invention includes, for example, one or more filament yarns made of polyolefin resin and filament yarns made of polyacetal resin, and a total of two or more yarns, and a ring twisting machine, a double twister, or an Italian twisted yarn. It can be manufactured by twisting using a known twisting machine such as a machine.
The string yarn according to the present invention is generally obtained by using a filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin and assembling them on a braiding machine (knitting machine). As an example, there are a four-piece assembly (knitted fabric), an eight-piece assembly, a 12-piece assembly, a 16-piece assembly, and the like. This preparation is made by assembling the right or left thread alternately in the middle, and this assembling method (braiding method) includes round punching, square punching, flat punching, etc. Are formed into braids and braids. In general, there are two types of string yarns, a single blade and a double blade, and either one may be used in the present invention.
[0015]
As a preferred embodiment of the yarn according to the present invention, a filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin, a twisted yarn or a string yarn are heated to about 150 to 160 ° C. Examples include yarns that are exposed for about 6 to 150 seconds, partially melted a resin, particularly a polyolefin-based resin, and the above-mentioned two types of filament yarns are fused.
By fusing the two types of filament yarns as described above, there is an advantage that fibrillation hardly occurs. In particular, the yarn of this aspect is substantially free from problems such as fluffing at the ends when cut.
[0016]
Other preferred embodiments of the yarn according to the present invention include a filament yarn made of a polyolefin resin, a filament yarn made of a polyacetal resin, and a low-temperature thermoadhesive resin having a melting point lower than the melting points of the polyolefin resin and the polyacetal resin. And a yarn formed integrally. More preferably, a yarn obtained by fusing and integrating the two types of filament yarns with the low-temperature thermal adhesive resin is used.
Thus, by using a low-temperature heat-adhesive resin, filament yarns made of polyolefin resin and filament yarns made of polyacetal resin can be easily bonded, and a yarn with good adhesion can be obtained. Therefore, there is an advantage that problems such as fibrillation can be more effectively suppressed.
[0017]
The low-temperature heat-adhesive resin described above needs to have a melting point lower than the melting points of the polyolefin resin and polyacetal resin that constitute the filament yarn. Specifically, the resin is in the range of about 50 to 200 ° C, preferably in the range of about 110 to 135 ° C. The melting point of the low-temperature heat-adhesive resin can be easily measured using “DSC7” manufactured by Perkin Elmer, for example, by a method according to JIS L 1013 “Chemical Filament Yarn Test Method”.
[0018]
As such a low-temperature heat-adhesive resin, a known resin may be used as long as it has the above melting point. Specifically, for example, a polyolefin copolymer, a polyester copolymer, a polyamide copolymer, or the like is used. Can do.
In particular, a soft resin that is made of a polyolefin resin, for example, a polyolefin copolymer mainly composed of polyethylene, polypropylene, or the like, that can be softened by heating in a short time of about 10 seconds at a low temperature of about 50 ° C. is preferable. Particularly, a resin having a melting point of about 100 ° C. and a low-viscosity resin at the time of melting is suitable, and it can easily flow and diffuse and penetrate not only to the fiber surface but also to the center by heating for a short time. , Can perform better adhesion function.
Further, a low-temperature heat-adhesive polyester copolymer or a low-temperature heat-adhesive polyamide copolymer resin can also be suitably used.
[0019]
As a method of fusing and integrating the filament yarn made of polyolefin resin, the filament yarn made of polyacetal resin, and the low temperature thermal adhesive resin, a method known per se may be used.
As a preferred embodiment, at least one of a filament yarn made of polyolefin resin and a filament yarn made of polyacetal resin is coated or impregnated with the above-mentioned low-temperature heat-adhesive resin, and the two filament yarns are combined and heated. There is a method of dissolving and fusing the low-temperature heat-adhesive resin by applying.
In the above, a method known per se may be used as a method of applying or impregnating the above-described low-temperature heat-adhesive resin to at least one of the two types of filament yarns. For example, the low-temperature heat-adhesive resin may be applied to the filament yarn using a known means such as an applicator, knife coater, reverse roll coater, gravure coater, flow coater, rod coater or brush, or a molten or solution-like low temperature. You may use the method of immersing a filament thread | yarn in the cage | basket which accommodated the heat-adhesive resin, and pulling up and squeezing the excess amount.
In the above, the method of combining the two types of filament yarns may be simply arranged as described above, or may be twisted or stringed.
[0020]
The yarn obtained by the above method is a preferred embodiment of the yarn according to the present invention. More preferably, there is a yarn formed by stringing so that filament yarns made of polyolefin resin and filament yarns made of polyacetal resin are alternately arranged in the cross-sectional shape of the yarn.
[0021]
In addition, as another preferred embodiment of the method for fusing and integrating the filament yarn made of polyolefin resin, the filament yarn made of polyacetal resin, and the low-temperature heat-adhesive resin, low-temperature heat-adhesiveness that is a yarn Using a resin, for example, using the yarn made of the low-temperature heat-adhesive resin as a core yarn, the two types of filament yarns come into contact with the yarn made of the low-temperature heat-adhesive resin as much as possible. Further, there is a method of twisting or knitting, if desired, and then applying heat. The yarn thus obtained is one of the preferred embodiments of the yarn according to the present invention.
[0022]
In the above two embodiments, the temperature during the heat treatment is usually a temperature not lower than the melting point of the low-temperature thermoadhesive resin and not higher than the melting point of the two filament yarns, preferably about 50 to 200 ° C., more preferably about 110 to 135 ° C. The degree is preferred.
Moreover, it is preferable to extend | stretch at the time of a heating. This is because the low-temperature thermal adhesive resin in a molten state is diffused and penetrated to the center by stretching and the two types of filament yarns are better fused. The draw ratio at that time is about 1.01 to 5.0, preferably about 2.20 to 3.0. Here, the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin have the same degree of elongation, and both have excellent creep properties, so even if the draw ratio is increased as described above, There is no problem that one of the yarns breaks or becomes wavy after drawing.
[0023]
As a more preferable embodiment of the yarn according to the present invention, a core yarn made of a low-temperature heat-adhesive resin having a melting point lower than the melting points of the polyolefin resin and the polyacetal resin, and the periphery of the core yarn is made of a polyolefin resin. Examples of the yarn include a filament yarn and a filament yarn made of polyacetal resin, and an outer yarn portion formed by stringing.
[0024]
The yarn made of the low-temperature heat-adhesive resin used as the core yarn may be a yarn made from the above-mentioned low-temperature heat-adhesive resin, or a yarn in which the center yarn is coated with the low-temperature heat-adhesive resin. Also good. For example, a commercially available product such as Thermolux (trade name, manufactured by LUXILON) may be used.
In the yarn in which the center yarn is coated with the low-temperature heat-adhesive resin, the center yarn is not particularly limited, and a synthetic fiber such as nylon may be used, or a metal wire or a high strength fiber may be used. These may be known per se, but examples of the metal wires include copper wires, stainless wires, lead wires, tungsten wires, soft wires of various alloys and amorphous wires. Examples thereof include polyolefin fibers such as ultrahigh molecular weight polyethylene, aromatic polyamide fibers, heterocyclic high-performance fibers, wholly aromatic polyester fibers, glass fibers, carbon fibers, and metal fibers. It is preferable to use a center yarn having a thickness of about 10 to 50 μm. Further, as a method of coating the center yarn with the low-temperature heat-adhesive resin, any method known per se may be used. For example, a bath containing the low-temperature heat-adhesive resin is impregnated with the center yarn, and an excess is obtained. There is a method of binding the minutes and drying them. The yarn made of the low-temperature heat-adhesive resin produced by such coating preferably has a thickness of about 1.3 to 3 times the center yarn.
[0025]
Using the above-described low-temperature heat-adhesive resin yarn as a core yarn, and using the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin around the core yarn, the above-described stringing method known per se Make a string. At that time, in the cross-sectional shape of the yarn, it is preferable that the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin are stringed so as to be alternately arranged. The yarn according to the present invention can be obtained by subjecting the yarn to heat treatment at the above-mentioned predetermined temperature and optionally stretching at the above-mentioned predetermined draw ratio during the heat treatment.
[0026]
A preferable aspect is demonstrated in detail below among the manufacturing methods of the yarn of the said preferable aspect which concerns on this invention. Fabricate a yarn made of filament yarn made of polyolefin resin and filament yarn made of polyacetal resin around the yarn made of low-temperature heat-adhesive resin, and continuously transfer the yarn with a roller, heating furnace The filament yarn usually has a melting point higher than the melting point of the low-temperature heat-adhesive resin while being drawn to a draw ratio of about 1.01 to 5.0, preferably about 2.20 to 3.0. After the low temperature thermal adhesive resin is melted by exposing it to the following temperature, preferably about 50 to 200 ° C., more preferably about 110 to 135 ° C. The yarn according to the present invention is obtained after being sent out by a roller and cooled by means such as cooling.
Here, the stretching operation can be performed in one stage or in multiple stages of two or more stages. Among these, multistage stretching of two or more stages is preferable. Multi-stage stretching of two or more stages can be performed using a method known per se.
[0027]
As another more preferable aspect of the yarn according to the present invention, a yarn made of the above-mentioned low-temperature heat-adhesive resin, and a filament yarn made of a polyolefin resin and a polyacetal resin are used around the yarn. And at least one of a filament yarn made of polyolefin resin and a filament yarn made of polyacetal resin constituting the outer yarn portion is coated or impregnated with the above-mentioned low-temperature thermoadhesive resin. A filament yarn, and a yarn comprising an outer yarn portion in which the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin are alternately arranged in the cross-sectional shape of the yarn. Can be mentioned.
Such a yarn has very good adhesion between a filament yarn made of polyolefin resin and a filament yarn made of polyacetal resin.
[0028]
In the yarn according to the present invention, the content weight ratio of the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin is preferably about 1 to 20: 1.
The yarn according to the present invention may include a filament yarn made of a resin other than the above resin. The weight content of such a filament yarn is 1/2 or less, preferably 1/3 or less, more preferably 1/4 or less with respect to the total of the filament yarn. Specifically, for example, in order to adjust (further increase) the specific gravity of the yarn, there may be mentioned a case where fluorine fiber or the like is further contained. Moreover, even if it does not consist of fibers, such as a metal wire, it can be used.
[0029]
The yarn according to the present invention may be colored. A known method may be used as the coloring method, for example, a method in which the yarn of the present invention is passed through a bath containing a colorant solution at room temperature, for example, at a temperature in the range of about 20 to 25 ° C. It is done. However, higher temperatures can be used if desired, but are usually below the melting point of the polyolefin resin and polyacetal resin. Thereafter, the yarn thus coated can be dried, and a colored yarn can be produced by passing the coated yarn through a furnace maintained at a temperature in the range of about 100 to 130 ° C.
As the colorant, inorganic pigments, organic pigments, or organic dyes are known, and preferable examples include titanium oxide, cadmium compounds, carbon black, azo compounds, cyanine dyes, and polycyclic pigments. It is done.
[0030]
In addition, the resin constituting the yarn according to the present invention is blended with various known antiwear agents, matting agents, modifiers, pigments, etc., or two or more thereof within a range not to impair the purpose of the invention. You can also keep it. Further, a magnetic material, a conductive substance, a substance having a high dielectric constant, or the like may be blended.
[0031]
The yarn of the present invention may be further coated with a suitable resin. By coating with resin, there is an advantage that the unevenness of the surface becomes smaller and a smoother thread can be formed. Examples of the resin used for coating include synthetic resins such as acrylic, urethane, nylon, polyester, epoxy, vinyl acetate, and ethylene-vinyl acetate, and may be either emulsion type or solvent type. Furthermore, synthetic rubber systems such as natural rubber and SBR can also be used.
As the coating method, a method known per se may be used, and examples thereof include melt extrusion coating.
[0032]
The yarn according to the present invention has a specific gravity of about 1.000 to 1.1195, preferably about 1.050 to 1.100. The tensile strength is about 20 to 40 g / d, preferably about 25 to 30 g / d. Here, the specific gravity can be easily calculated from the fineness measured according to JIS L1013: 1999 and the diameter of the yarn measured with a dial gauge known per se, such as a PACOCK dial gauge G. Further, the tensile strength can be easily measured as described above.
[0033]
The yarn according to the present invention may be used for any application that requires wear resistance, durability, weather resistance, or water resistance. Specifically, for example, fishing lines for various leisure and fishing industries. In addition, it can be suitably used for fishery materials such as tuna fishery, rope, gut, silk thread, “weederter” thread, or surgical suture.
[0034]
【Example】
Hereinafter, examples will be described in order to specifically describe the present invention, but the present invention is not construed as being limited thereto.
[0035]
[Example 1]
A monofilament yarn made of polyacetal resin was prepared as follows. A polyacetal resin (Iupital F10-01 (trade name) manufactured by Mitsubishi Engineer Plastics Co., Ltd.) was supplied to a 30 mmφ extruder, heated and melted, spun from a spinneret, and placed in a 20 ° C. water bath directly below the nozzle hole. It was cooled with. Subsequently, the spun yarn was drawn 5.2 times at 195 ° C. and then heat-treated at 200 ° C. to obtain a monofilament made of a 125 a thick polyacetal resin.
[0036]
Dyneema 275d / 192F (manufactured by Toyobo Co., Ltd.) was used as the filament yarn made of polyolefin resin. Further, Thermolux PO105 300d (manufactured by LUXILON) was used as the core yarn. Around the core yarn, four monofilament yarns made of the polyacetal resin obtained as described above and four dyneas were stringed with a stringing machine to produce a string yarn having a diameter of 0.45 mm. This was fed into a heating furnace heated to 140 ° C. at a feeding roller speed of 50 m / min, and wound up at a winding roller speed of 60 m / min to produce a yarn (diameter 0.38 mm) according to the present invention.
[0037]
[Test example]
The obtained yarn 25 cm was left in the room for a day and night, and then set on an autograph (AG-1 type) manufactured by Shimadzu Corporation, and the strength (kg) at cutting was measured when pulled at a pulling speed of 30 cm / min. did. As a result, the strength was 25 kg.
The specific gravity of the obtained yarn was calculated from the fineness measured according to JIS L1013: 1999 and the diameter of the yarn measured with a PACOCK dial gauge G. As a result, the specific gravity is 1.10 g / cm. ³ Met.
[0038]
The bending resistance (koshi) of the obtained yarn was evaluated by the following test method. That is, as shown in FIG. 1, one end of a test piece 5 (5 cm cut from the obtained yarn) is fixed, and the other end of the test piece 5 is moved by applying force to the other end from above. Was measured with a universal testing machine Autograph AG-100kNI (trade name, manufactured by Shimadzu Corporation). For comparison, a string yarn made by round-punching 8 Dyneema 275d / 192F (manufactured by Toyobo Co., Ltd.) used in Example 1 and a 125d thick obtained in exactly the same manner as in Example 1 were used. A string yarn obtained by round-stitching eight monofilaments made of polyacetal resin was used. As a result, the stress indicated by the yarn according to the present invention was an intermediate value between the stress indicated by the string yarn made of Dyneema and the string yarn made of polyacetal resin.
[0039]
【The invention's effect】
The yarn according to the present invention can achieve a high specific gravity of a filament yarn made of a polyolefin resin. In addition, the yarn according to the present invention can achieve the provision of rigidity to the filament yarn made of polyolefin resin and the relaxation of the strong rigidity inherent to the filament yarn made of polyacetal resin all at once. A yarn having the same can be provided. The yarn according to the present invention is particularly useful as a fishing line, and can provide a fishing line having a practical specific gravity and stiffness as a fishing line.
[0040]
In addition, the yarn according to the present invention has an advantage that it is excellent in wear resistance and light resistance, and is therefore excellent in durability. Furthermore, the yarn according to the present invention has an advantage of high strength and low elongation.
Further, since the filament yarn made of polyacetal resin has a low frictional resistance, the yarn according to the present invention has a good sliding property, and has an advantage that, for example, the resistance to the guide is small when used as a fishing line.
Furthermore, by interposing a filament yarn made of polyacetal resin, when a load is applied to the yarn, the filament yarn made of polyacetal resin acts as a protective material for the filament yarn made of polyolefin resin, and the filament made of polyolefin resin It can prevent the strength of the yarn from decreasing.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a bending resistance evaluation method in an embodiment of the present invention.

Claims (9)

A filament yarn made of a polyolefin resin, Ri Na in combination with a filament yarn made of polyacetal resin, or a filament yarn consisting of filament yarn and polyacetal resin comprising the polyolefin resin is simply pulled aligned with pull aligned yarn, Alternatively, a yarn characterized by being a twisted yarn or a stringed yarn. A filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin are combined, and the filament yarn made of the polyolefin resin and the filament yarn made of a polyacetal resin are more A yarn characterized by being fused and integrated with a low temperature thermal adhesive resin having a low melting point.   That at least one of a filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin is a filament yarn coated or impregnated with a low-temperature thermoadhesive resin having a melting point lower than that of the polyolefin resin and the polyacetal resin. The yarn according to claim 2, characterized in that it is characterized by the following.   A core yarn made of a low-temperature heat-adhesive resin having a melting point lower than that of the polyolefin resin and the polyacetal resin, and a filament yarn made of a polyolefin resin and a filament yarn made of a polyacetal resin around the core yarn in a cross-sectional shape The yarn according to claim 2, comprising an outer yarn portion formed by stringing so as to be alternately arranged. The yarn according to any one of claims 2 to 4 , wherein the low-temperature heat-adhesive resin is a polyolefin copolymer, a polyester copolymer, or a polyamide copolymer.   The yarn according to any one of claims 2 to 5, wherein the low-temperature heat-adhesive resin has a melting point in the range of 50 to 160 ° C. The filament yarn according to any one of claims 1 to 6 , wherein the filament yarn made of a polyolefin resin is an ultrahigh molecular weight polyethylene filament yarn. The yarn according to any one of claims 1 to 7 , wherein the content weight ratio of the filament yarn made of polyolefin resin and the filament yarn made of polyacetal resin is 1 to 20: 1.   A fishing line comprising the yarn according to any one of claims 1 to 8.

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