JP4771759B2 - Rubber string and clothing using the same - Google Patents

Description

  The present invention relates to a rubber string widely used in clothing and the like. More specifically, the present invention relates to a braided-type rubber cord formed into a long sheet by assembling a plurality of rubber yarns arranged in parallel.

  Rubber strings are widely used for stretchable parts of clothing such as underwear and swimwear. The rubber string that has been used for a long time and is the most common rubber string is a rubber thread made by processing natural rubber (natural latex) into a core material. However, natural rubber has problems in durability, oil resistance, light resistance, and the like when repeatedly used, and has a problem that it is easily degraded and cut.

  Accordingly, a rubber string having a core made of a synthetic yarn having elasticity (hereinafter referred to as a synthetic elastic yarn) has been developed and provided to the market. As such a synthetic elastic yarn, for example, a polyurethane resin having elasticity processed into a thread shape is known. This polyurethane elastic yarn has a predetermined elasticity and is excellent in mechanical strength, abrasion resistance, oil resistance, light resistance and the like as compared with the natural rubber yarn described above.

  However, synthetic elastic yarns such as polyurethane yarns are often commercialized with an oil (lubricant) attached to the surface for reasons of the manufacturing process. Thus, when a rubber string is manufactured using an elastic thread having an oil agent attached to the surface, a phenomenon called “slip-in” is likely to occur. This slip-in phenomenon is a phenomenon in which the end portion of the synthetic elastic yarn slides into the braid when a longitudinal tension is applied to the rubber string (ie, when it is pulled). Since the elastic string arranged in the rubber string is assembled by braiding, a structure for preventing the elastic thread from slipping is realized. However, when the synthetic elastic yarn is used, the slip-in phenomenon becomes remarkable because the surface of the yarn slips with the oil agent adhering to the surface. When the slip-in phenomenon occurs and the synthetic elastic yarn is submerged in the tissue, the rubber cord does not perform its intended function. And the clothing which employ | adopted such a rubber string will become a thing with a low commercial value.

  Therefore, Patent Document 1 proposes a technique for dealing with the slip-in phenomenon. This Patent Document 1 discloses a ring-shaped rubber string used for a cylindrical part (part to be expanded and contracted) such as underwear. This rubber string is designed to suppress the slip-in phenomenon by sewing at two or more overlapping regions when the tensioned state is maintained.

JP 2001-162077 A

  However, the technique disclosed in Patent Document 1 does not fundamentally solve the problem of slipping between the synthetic elastic yarn and the braid that are slipped by the oil agent pointed out above. The synthetic elastic yarn is thinned by applying tension to the periphery of the synthetic elastic yarn, and when the tension is released, the sewing yarn strongly presses the synthetic elastic yarn. Since only two places in the overlapping region are tightened with the sewing thread, there is a possibility that the synthetic elastic thread may slip through, and it is not reliable as a technique for suppressing slip-in.

  Further, the structure shown in Patent Document 1 is troublesome because the completed rubber string must be sewn to prevent slip-in. Since at least two sewing operations are performed for each rubber cord, time and cost increase. Moreover, this patent document 1 suppresses the slip-in phenomenon of a ring-shaped rubber string, and does not propose a long rubber string. If the technique of Patent Document 1 is applied to a long rubber cord, it is necessary to sew both ends to prevent slip-in, which further increases time and cost.

  In recent years, in order to prevent the occurrence of the slip-in phenomenon, synthetic elastic yarns (for example, polyurethane elastic yarns) subjected to a treatment for removing the oil on the surface have been provided. The synthetic elastic yarn from which the oil agent on the surface is removed can suppress the occurrence of the slip-in phenomenon, so that a more preferable rubber string can be manufactured. However, it is an object that conventional natural rubber has a high frictional resistance, and generally the surface of the synthetic elastic yarn has a high smoothness. Therefore, it is difficult to prevent the occurrence of slipping even with the synthetic elastic yarn from which the oil agent has been removed. As described above, with respect to the rubber string using the synthetic elastic yarn, there is a fact that a technique for reliably preventing the occurrence of the slip-in phenomenon has not yet been established.

  Therefore, a main object of the present invention is to solve the conventional problems described above and to provide a rubber string having a structure that reliably prevents the slip-in phenomenon of the synthetic elastic yarn.

Above object, a plurality of composite elastic yarn arranged in parallel to a rubber cord which is woven formed by braids, single mosquito burring processing winding the cover yarn in one direction is applied to the composite elastic yarns The plurality of single-covered synthetic elastic yarns include the same number of Z-twisted types and S-twisted types, and the plurality of S-twisted type synthetic elastic yarns and Z-twisted type synthetic elastic yarns are alternately arranged in a state of being stretched, between the cover yarn wrapped composite elastic yarns of different twisting type that are adjacent to each other, rubber being cord tissue formed such braids are engaged This can be achieved with a string.

According to the present invention, since the synthetic elastic yarn is subjected to the covering process, a state of gripping by the cover yarn can be formed and the occurrence of the slip-in phenomenon can be suppressed. Furthermore, composite elastic yarns of the covering state is in a state in which uneven fine outside is formed, engages a set yarn and multiple locations running the width direction when stretched in the longitudinal direction. Therefore, each synthetic elastic yarn can be prevented from shifting in the longitudinal direction, and the occurrence of the slip-in phenomenon can also be suppressed in this respect.

Further, according to the present invention, synthetic elastic yarn a plurality of which are pre-Symbol Single cover-ring comprises the same number of Z twist type and S-twist type with each other, S-twist type composite elastic yarn of the previous SL plural and the Z twist type composite elastic yarns of Alternating been placed in a state of being stretched, between the cover yarn wrapped composite elastic yarns of different twisting type that are adjacent to each other, braids are engaged since a configuration of cord tissue is formed so that, Ruue can suppress twisting Rino generation can be reliably prevented a deviation of the composite elastic yarns adjacent to each other.

  As described above, the apparel using the rubber string that can surely prevent the slip-in phenomenon has no problem of slip-in when used. Therefore, such clothing is a highly reliable product.

  According to the present invention, it is possible to provide a rubber string that reliably prevents the slip-in phenomenon of the synthetic elastic yarn.

  Hereinafter, a rubber string according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an enlarged view of a part of the structure of the rubber cord 1 according to the embodiment. In order to facilitate understanding, the vertical direction in FIG. 1 will be referred to as the longitudinal direction Y of the rubber cord 1 and the lateral direction perpendicular thereto will be referred to as the width direction X. The longitudinal direction Y is a direction in which the long rubber string 1 is pulled and extended. Moreover, the structure seen from each direction is combined and shown on the right side and the lower side in the figure.

  Note that the rubber string generally has a structure formed by a plurality of rubber yarns that are core materials and braided yarns that assemble the rubber yarns. Specifically, elongated rubber yarns are arranged in parallel in the width direction, and these are assembled by braiding. Looking at the assembled structure, it becomes a sheet-like shape that approximates a plain weave with the warp yarn (weft) as the rubber yarn and the weft yarn (warp) as the braid. The braid is folded back at the end and is a single continuous yarn. That is, the braid runs from left to right in the width direction, folds at the right end, and runs from right to left. Although the braided yarn itself hardly expands and contracts, when the rubber yarn extends in the longitudinal direction by assembling in this way, the structure of the braided yarn can be stretched accordingly. Generally, a rubber string is formed using a plurality of braids.

  The basic structure of the rubber string 1 of the embodiment shown in FIG. 1 is the same as that of a general rubber string. That is, the rubber string 1 includes a synthetic elastic yarn A that functions as a rubber yarn and a braided yarn B that combines them. FIG. 1 illustrates a rubber string in which eight synthetic elastic yarns A1 to A8 are arranged. The rubber string is also referred to as a call rubber, and one using eight thread rubbers as shown in FIG. 1 is called 8C (call). Therefore, the larger the number of calls, the wider the rubber string that incorporates more rubber threads.

  In the rubber string 1, a plurality of braids B (for example, ten) are used, but if all the braids are illustrated in detail, the configuration is difficult to understand. Therefore, only one braid B1 is shown here. The braid B1 runs in the lateral direction with respect to the synthetic elastic yarns A1 to A8 arranged in parallel. The braided yarn B1 alternately rises and falls with respect to the synthetic elastic yarns A1 to A8, reaches the end portion, and then turns up and down with respect to the synthetic elastic yarns A1 to A8. Here, for the second and subsequent braids B2 to Bn (not shown), the same path as the braid B1 is formed.

  The basic configuration of the rubber cord 1 described above is the same as that of the conventional rubber cord. Here, as the synthetic elastic yarn A used as the rubber thread, a synthetic resin having a predetermined elasticity in the form of a thread can be widely used. That is, an elastic yarn that can be manufactured from a material generally called synthetic rubber or elastic synthetic fiber can be used as the synthetic elastic yarn A here. For example, as the synthetic elastic yarn A, a polyurethane-based, silicon-based, fluorine-based, or polyolefin-based elastic yarn can be used. Among these, it is preferable to use an elastic yarn made of polyurethane (hereinafter referred to as polyurethane yarn) which is excellent in mechanical strength, abrasion resistance, oil resistance, light resistance and the like.

  As described above, even if a synthetic elastic yarn such as a polyurethane yarn from which the surface oil agent is removed is used, the occurrence of the slip-in phenomenon cannot be reliably prevented. The rubber string 1 of the first embodiment has a structure that can prevent the occurrence of a slip-in phenomenon even in a synthetic elastic yarn in which an oil agent is adhered as well as a synthetic elastic yarn from which an oil agent has been removed. Yes. Below, the structure of the slip-in prevention with which the rubber cord 1 is provided is demonstrated in detail.

  In FIG. 1, the synthetic elastic yarns A1 to A8 are shown in a simplified manner. FIG. 2 shows the eight synthetic elastic yarns A1 to A8 in more detail. As shown in FIG. 2, each synthetic elastic yarn A is covered. In the covering process here, one cover thread (covering thread) is wound in one direction around each of the synthetic elastic threads A acting as thread rubber. In addition, the covering process which winds another cover thread | yarn around the outer periphery of a core thread | yarn in this way is a technique known in the textile industry etc. The covering process is performed using a covering device (covering twisting device). The conventional covering process has been adopted for the purpose of protecting the core yarn, decoration, and regulation of elongation. The covering process includes a single covering process in which one cover yarn is wound in one direction and a single covering process, and a double covering process in which an upper winding is wound in the reverse direction on the lower winding.

In the rubber cord 1 of the present embodiment, a cover ring is applied to each of the synthetic elastic yarns A1 to A8 for preventing slipping. In the past, there has been no idea of performing a covering process on a synthetic elastic thread such as a polyurethane thread disposed in a rubber string, in particular, performing a covering process in anticipation of a non-slip function. It was.

  Referring to FIG. 2, the cover yarn C1 is wound around the outer periphery of the first synthetic elastic yarn A1 by Z twist. A cover yarn C2 is wound around the outer periphery of the second synthetic elastic yarn A2 adjacent thereto with S twist. Thus, the synthetic elastic yarn provided with the Z twist type cover ring and the synthetic elastic yarn provided with the S twist type cover ring are alternately arranged inside the rubber cord 1. In this example, there are 8 synthetic elastic yarns, and there are 4 sets, so the left end is a Z twist type and the right end is an S twist type.

  In FIG. 2, the case where a single covering is applied to the synthetic elastic yarn A is illustrated. In general, when a cover yarn is wound around the periphery of a rubber yarn, the amount of elongation is regulated by the cover yarn. In the case of a double cover ring, the cover yarn is doubled, so this amount of elongation is small. Therefore, from the viewpoint of ensuring a sufficient amount of expansion and contraction of the rubber cord, it is preferable to employ a single cover ring. However, in the single cover ring, since the cover yarn is wound in one direction, the synthetic elastic yarn A is likely to be twisted. For example, when only a synthetic elastic yarn having a Z-twisted cover ring is used, the assembled rubber string 1 is entirely twisted (or kinked). On the other hand, if the Z twist type and the S twist type are alternately arranged as shown in FIG. 2, the influence of the twist can be offset. Therefore, the structure shown in FIG. 2 realizes an excellent structure that secures the stretch amount of the rubber cord 1 by adopting a single cover ring and further prevents the occurrence of twisting.

  In the structure shown in FIG. 2, the twist of the synthetic elastic yarn A1 disposed at the left end is Z-type, and the twist of the synthetic elastic yarn A8 disposed at the right end is S-type. Referring also to FIG. 1, the braided yarn B1 that turns back from the right end and goes to the left coincides with the cover yarn C8 of the synthetic elastic yarn A8. Similarly, the braided yarn B1 that turns from the left end and goes to the right coincides with the cover yarn C1 of the synthetic elastic yarn A1. Although FIG. 1 shows only one braid B1, this relationship is the same for the second and subsequent braids B2 to Bn.

  FIG. 3 is a view schematically showing the relationship between the left and right synthetic elastic yarns A1 and A8 and the braid B when the rubber cord 1 is stretched in the longitudinal direction Y. When the rubber string 1 is pulled in the longitudinal direction Y, the synthetic elastic yarns A1 and A8 are extended, so that the interval between the cover yarns C wound around the surface is increased. Here, as described above, the string structure of the rubber string 1 is assembled so that the cover yarn C1 and the braid B on the left side and the cover yarn C8 and the braid B on the right side are aligned. Therefore, when the interval between the cover yarns C1 and C8 extends in the longitudinal direction Y, as shown in FIG. 3, the braided yarn B engages (is fitted into the valley) in the gap. When the braided yarn B engages with the cover yarns C1 and C8 in this way, the movement in the longitudinal direction Y is restricted.

  On the other hand, the cover yarns C1 and C8 are in a state in which the inner synthetic elastic yarns A1 and A8 are gripped (wrapped) from the outside and the displacement in the longitudinal direction Y is restricted. Therefore, when the braid B is engaged with the cover yarns C1 and C8, the movement of the synthetic elastic yarns A1 and A8 in the longitudinal direction Y is substantially restricted. For the other synthetic elastic yarns A2 to A7 located in the middle, these cover yarns C2 to C7 are engaged in the same manner as the braided yarn B on the upper and lower surfaces. Therefore, this rubber string 1 can prevent the occurrence of a slip-in phenomenon that occurs when the rubber cord 1 is stretched in the longitudinal direction Y.

  As described above, since the rubber string 1 of the first embodiment is subjected to the single covering process on each of the synthetic elastic yarns A1 to A8 disposed inside, the state in which the rubber strings 1 are gripped by the respective cover yarns C1 to C8. Since it is formed, the occurrence of slip-in phenomenon can be suppressed. Further, the synthetic elastic yarns A1 to A8 in the covered state are in a state in which fine irregularities are formed on the outside, and the braided yarn B that runs in the width direction X when stretched in the longitudinal direction Y and a number of locations Engage with. Therefore, it can suppress that each synthetic elastic yarn A1-A8 shifts to the longitudinal direction Y. In this respect, the occurrence of the slip-in phenomenon can be suppressed.

  Further, when the rubber string 1 is stretched, the string structure is formed so that the cover yarns C1, C8 wound around the synthetic elastic yarns A1, A8 at both ends are engaged with the braided yarn B. Is formed. Therefore, the occurrence of the slip-in phenomenon is further suppressed in this respect.

  As is apparent from the above, the rubber string 1 has a multi-stage structure for preventing the occurrence of slip-in of the synthetic elastic yarn A incorporated therein. Therefore, even if the oil agent adheres to the outer periphery of the synthetic elastic yarn A, the occurrence of the slip-in phenomenon can be reliably prevented. Of course, it goes without saying that a synthetic elastic yarn having no oil attached to the outer periphery may be used for the rubber cord 1. Therefore, the rubber string 1 of the first embodiment can be provided as an excellent rubber string that can reliably prevent the slip-in phenomenon of the synthetic elastic yarn regardless of the presence or absence of the oil agent.

Reference example

Furthermore , the rubber string which concerns on a reference example is demonstrated. Elastic cord of this reference example, the point of using the composite elastic yarn A which has been subjected to double covering process is different from the rubber cord of the above embodiment. Therefore, here, the description will focus on the differences in the rubber cords of the reference example .

FIG. 4 is a view showing a synthetic elastic yarn A subjected to double covering used for the rubber cord of the reference example . As shown in the drawing, the first cover yarn C-1 is wound around the synthetic elastic yarn A by Z twist, and the second cover yarn C-2 is wound thereon by S twist. In this way, the synthetic elastic yarn A subjected to the double covering does not twist as in the single covering because the twist is canceled up and down. Therefore , the rubber cord according to the reference example may be assembled by arranging a desired number of the synthetic elastic yarns A of the double covering shown in FIG.

When the double covering process is performed, the inner synthetic elastic yarn A is gripped more reliably, so that the occurrence of a slip-in phenomenon can be prevented. Further, since the cover yarn is doubled, the synthetic elastic yarn A can be protected, and further, the amount of elongation can be accurately defined by a predetermined range . Other configurations for the elastic cord of Reference example can prevent the occurrence of slip-in phenomenon more reliably is the same as the rubber straps of the embodiments described above.

  FIG. 5 is a view showing an example of a clothing item to which the rubber string of the above-described embodiment is applied, in which (A) shows pants P and (B) shows a swimsuit SW. As shown in FIG. 5A, the rubber string of the embodiment can be used for the stretchable portion 10 of the pants P. As shown in FIG. 5 (B), it can be used for the stretchable parts 11, 12, 13 etc. of the swimsuit.

  As described above, since the rubber string of the embodiment has a structure that reliably prevents the slip-in phenomenon, the clothing shown in FIG. 5 is a highly reliable product.

  The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

It is the figure which expanded and showed a part of structure | tissue of the rubber cord which concerns on an Example . It is the figure which showed in detail the synthetic elastic thread | yarn included in the rubber cord which concerns on an Example . It is the figure which showed typically the relationship between the synthetic elastic thread | yarn on both right and left sides, and a braid when the rubber string which concerns on an Example was extended in the longitudinal direction. It illustrates with the composite elastic yarns subjected to a double covering to be used for the rubber cord of Reference Example. It is the figure which showed an example of the clothing article to which the rubber string of the Example was applied.

1 Rubber string A (A1 to A8) Synthetic elastic yarn B Braided yarn C (C1 to C8) Cover yarn X Width direction Y Longitudinal direction P Pants (clothing)
SW swimsuit (clothing)

Claims (2)

A rubber cord formed by braiding a plurality of synthetic elastic yarns arranged in parallel with a braided yarn,
The synthesis to the elastic yarn is decorated single mosquito burring processing winding the cover thread in one direction,
The plurality of single-covered synthetic elastic yarns include the same number of Z-twisted types and S-twisted types,
The plurality of S-twisted type synthetic elastic yarns and Z-twisted type synthetic elastic yarns are alternately arranged, and in a stretched state, cover yarns wound around different twisted type synthetic elastic yarns adjacent to each other. A string structure is formed so that the braid is engaged between them
Rubber cord which is characterized a call. An article of clothing using the rubber string according to claim 1.

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