JPH0370039B2 - - Google Patents

Description

[Detailed description of the invention]

<Industrial Application Field> The present invention relates to main ropes, spin sail ropes, gypsail ropes, etc. used for yachts. <Prior Art> Conventionally, fiber ropes having a multilayer structure by braiding fibers into a core fiber layer are known. For example, "an inner layer cable has a core made of twisted fibers, a middle layer made of braided fibers, a covering layer made of a melted heat-melting resin on the outer periphery of the cable, and a braided heat-shrinkable resin fiber on the outer periphery of the covering layer. , a fiber rope in which the coating layer is embedded between the fibers and shrunk to form an outer coating layer'' (Japanese Patent Application Laid-open No.
58-207806) is known. Fiber ropes containing wholly aromatic polyamide fibers are also known. For example, "strength 15 g/d or more,
A rope characterized by being made by twisting or braiding a plurality of composite fibers made by twisting fibers with an elongation of 10% or less and core-sheath type aromatic polyamide fibers and heat-sealing them. 36286), etc. are known. Furthermore, fiber ropes made of a combination of wholly aromatic polyamide fibers and polyester fibers are also known. For example, "a rope characterized by covering the outer periphery of a core material made of aromatic polyamide yarn with a covering material made of abrasion-resistant and weather-resistant fibers" (Japanese Patent Laid-Open No. 54 -120767 Publication) or "In a double-braided structure having both inner and outer layered cords formed by winding a large number of strands in a spiral shape while crossing each other and braiding them into a cylindrical shape, one of the double layered cords is Each strand is made of highly elongated fibers such as Tetron and nylon,
A fiber rope characterized in that each of the other strands is made of a fiber with low elongation such as aramid fiber, and the helical pitch of the other strand is larger than the helical pitch of one strand.
(Japanese Unexamined Patent Publication No. 56-37391) is known. On the other hand, commercially available yacht ropes are usually made of polyester, nylon, vinylon, etc., and the outermost layer is made of long fiber yarn. Therefore, conventional yacht ropes have had the following problems. (1) When a sailboat is subjected to wind pressure, the stress causes elongation, which impairs the dimensional stability of the sailboat. (2) Low durability due to low modulus. (3) The outermost layer of the rope is braided with long fibers, making the rope surface slippery. <Object of the Invention> The present invention has been made in order to solve such problems in the prior art. That is, the present invention provides (1) a fiber rope comprising a core fiber layer and a covering layer made of braided fibers, in which at least one layer contains fully aromatic polyamide fibers, and the outermost layer is made of polyester Taslan processed yarn; A yachting rope characterized by (2) a yachting rope according to claim 1 in which the core fiber layer is a wholly aromatic polyamide fiber (3) a patent claim in which a wholly aromatic polyamide fiber is coated with a resin The rope for yachting according to claim 2 (4) The core fiber layer is polyester long fiber twisted yarn (5) The rope for yachting according to claim 1 (5) The core fiber layer is polyester long fiber non-twisted yarn Sailing rope (6) according to claim 1, wherein a core layer made of polyester long fibers is provided with a middle layer made of fully aromatic polyamide fibers, and the outermost layer is made of polyester Taslan processed yarn braided with the middle layer. A rope for yachting (7) according to claim 1, comprising: a fiber rope having a thick portion and a thin portion, wherein the core layer of the thick portion is made of polyester long fiber yarn and wholly aromatic polyamide fiber. The yachting rope according to claim 1, wherein the core layer of the thin part is made of wholly aromatic polyamide fiber, and each layer has an outermost layer made of braided polyester Taslan processed yarn. Here, the wholly aromatic polyamide is mainly a polyparaphenylene terephthalamide-based polymer. Specifically, Kevlar fiber (manufactured by Du Pont Co., Ltd.)
Or Technora Fiber (manufactured by Teijin Ltd.). The yachting rope of the present invention is a rope consisting of two or more layers, in which at least one layer contains wholly aromatic polyamide fibers. The layer containing wholly aromatic polyamide fibers may be a core layer or an intermediate layer between the core layer and the outermost layer. The outermost layer is made of polyester taslan textured yarn. The polyester taslan processed yarn is a so-called 2-feed taslan processed yarn, in which a relatively thick denier polyester yarn is used as a core yarn, and a polyester yarn with a finer denier than the core yarn is used as a covering yarn (covering yarn). The covering yarn is wound around the core yarn to form many fine loops. When wholly aromatic polyamide fibers are used in the core fiber layer, the fibers may be coated with a resin. in this case,
The coating resin is not particularly limited, but polyamide, polyamide copolymer, polyester, polyester copolymer, polyolefin such as polyethylene and polypropylene, vinyl polymer, rubber, elastomer such as polyurethane, etc. can be used. Further, instead of the wholly aromatic polyamide fibers, polyester long fiber yarn may be used as the core fiber layer, and wholly aromatic polyamide fibers may be used as the intermediate layer. In this case, the polyester long fiber yarn may be a twisted yarn or a non-twisted yarn. Further, in the case of a yachting rope, a fiber rope having a thick portion and a thin portion is sometimes used, and in the present invention, it is preferable that the yachting rope having such a shape is constructed as follows. That is, the core fiber layer in the thick part is composed of wholly aromatic polyamide fibers and polyester long fibers, the core fiber layer in the thin part is composed of the same wholly aromatic polyamide fiber, and the outermost layer of each is made of polyester Taslan processed yarn. A fiber layer is provided by braiding the fibers. <Effects of the Invention> The yacht rope of the present invention has the following effects. (1) When sailboats are subjected to wind pressure during sailing, they do not elongate due to the stress. (2) There is no possibility of permanent distortion occurring in the yacht sail and loss of dimensional stability. In other words, it has high durability. (3) The surface of the sailing rope is difficult to slip, so it is easy to handle when operating the sailing rope.
quality) is good. <Example> Hereinafter, the method for manufacturing a yacht rope of the present invention will be specifically explained with reference to Examples. In the Examples, the strength and elongation and durability of the ropes were measured according to the following methods. Strength and elongation The method of JIS-L-2707-1984 was followed. The testing machine was a constant-speed extension type tensile testing machine (Instron), tensile speed: 5 cm/min, effective sample length: 180 cm.Durability (wear): The tester was installed on an ocean-going yacht, and the feeling felt by the crew when used for a long period of time (ease of handling). ) and by observing the rope surface after use. Example 1 First, polyester Taslan processed yarn was created under the following conditions. Supply fiber A: Polyethylene terephthalate fiber with a total fineness of 1500 denier and 250 filaments Supply fiber B: Polyethylene terephthalate fiber with a total fineness of 250 denier and 48 filaments Taslan processing speed: 47 mm/min Overfeed rate: Fiber B at +30% to fiber A Air supply pressure: 6.0 Kg/cm ² Draft: 0.3% The obtained Taslan processed yarn had an apparent fineness of 1900 denier, a strength of 7.5 g/d, and an elongation of 17%.
Next, polyethylene terephthalate fiber with a total fineness of 1500 denier and 250 filaments (strength 9.5 g/d, elongation 12%) is used as a core fiber layer, and this is covered with a fully aromatic polyamide fiber Technora (Teijin Ltd.) with a total fineness of 1500 denier and 1000 filaments. Manufactured: strength 25g/d, elongation
4.4%) was braided to form the middle fiber layer, and the above-mentioned Taslan processed yarn was braided as the outermost layer to create a yacht rope with a diameter of 12 mm. Table 1 shows the evaluation results for the strength and elongation of the obtained rope and the abrasion durability of the rope surface when used in actual use. Example 2 The fully aromatic polyamide fiber used in Example 1 treated with polyurethane resin was used as the core fiber, and the Taslan processed yarn of Example 1 was braided into it to form the outermost layer. Created a rope. The first evaluation results regarding rope physical properties, etc.
Shown in the table. Example 3 In a yacht rope having a thick portion and a thin portion, a mixed fiber consisting of a 1000 denier, 192 filament polyethylene terephthalate long fiber and the wholly aromatic polyamide fiber used in Example 1 was used as the core fiber of the thick portion. Similarly, only the wholly aromatic polyamide fiber used in Example 1 was used as the core fiber of the thin portion. The Taslan processed yarn used in Example 1 was also braided into this core fiber layer, which has a thick part and a thin part, so that the diameter of the thick part was 8.
A sailing rope with a thin part diameter of 3 mm was obtained. The resulting rope had a non-slip surface, a soft feel and good handling properties. Comparative example 1 Core fiber: 1000 denier, 192 filament,
Untwisted polyethylene terephthalate fiber (strength
9.0 g/d, elongation 13%) and braided polyethylene terephthalate spun yarn of cotton count No. 3 as the outermost layer fiber to prepare a 12 mm yacht rope. The first evaluation results of the physical properties of the rope
Shown in the table. Comparative Example 2 In a yachting rope that has a thick part and a thin part, the core fiber of the thick part was a stainless steel wire rope with a diameter of 3 mm and a polyethylene terephthalate long fiber yarn of 1000 denier and 192 filaments (strength 9.0 g/d, elongation 13%). ) was used, and only the stainless steel wire rope mentioned above was used as the core fiber in the thin part. This was braided with polyethylene terephthalate spun yarn of cotton count No. 3 to obtain a yachting rope with a thick part diameter of 8 mm and a thin part diameter of 3 mm. The resulting rope had a slippery surface, felt hard to the touch, and had poor handling properties.

[Table] × Fast wear

Claims (1)

[Claims] 1. A fiber rope comprising a core fiber layer and a covering layer made of braided fibers, characterized in that at least one layer contains fully aromatic polyamide fibers, and the outermost layer is made of polyester Taslan processed yarn. A rope for sailing. 2. The yachting rope according to claim 1, wherein the core fiber layer is a wholly aromatic polyamide fiber. 3. The rope for yachting according to claim 2, comprising wholly aromatic polyamide fibers coated with a resin. 4. The yachting rope according to claim 1, wherein the core fiber layer is a polyester long fiber twisted yarn. 5. The yachting rope according to claim 1, wherein the core fiber layer is polyester long fiber non-twisted yarn. 6. The yachting rope according to claim 1, comprising a core layer made of polyester long fibers, a middle layer made of braided fully aromatic polyamide fibers, and an outermost layer made of braided polyester Taslan processed yarn in the middle layer. . 7 A fiber rope having a thick portion and a thin portion, the core layer of the thick portion being composed of polyester long fiber yarn and wholly aromatic polyamide fibers, and the core layer of the thin portion being composed of wholly aromatic polyamide fibers. ,
The yachting rope according to claim 1, wherein each layer has an outermost layer made of braided polyester taslan yarn.