JP6204031B2 - Warp knitted fabric - Google Patents

Description

  The present invention relates to a knitted fabric having an anti-slip function that can be suitably used for an anti-slip sheet or the like.

  Conventionally, when wearing clothes such as sportswear and exercising, there has been a problem that the clothes are shifted up or down. Therefore, in order to solve this problem, it has been proposed to attach an anti-slip sheet to the hem of the shirt or the waist of the pants, and this anti-slip sheet is a knitted fabric with an anti-slip function, for example. Is used.

  Here, as a method for imparting a slip prevention function to a knitted fabric or the like, a plurality of methods as described below have been proposed.

  For example, as a method of applying a high friction coefficient resin to the surface of the knitted fabric and imparting an anti-slip function, polyester polyurethane resin, acrylic resin, etc. on one surface of a base fabric made of nylon fiber knitted fabric There is a method of forming a resin film made of (Japanese Patent Laid-Open No. 2008-104871). According to this method, by forming a resin film having a high friction coefficient, it is possible to impart a slip prevention function to the surface on which the resin film is formed.

  On the other hand, as a method of imparting an anti-slip function by using a fiber having a high coefficient of friction (elastic fiber or the like) as a knitting yarn, for example, an elastic fiber made of polyurethane or the like and an inelastic fiber made of polyester or the like are used. When knitting a knitted fabric, a method has been proposed in which the elastic fiber loop is enlarged and exposed to the needle loop surface to increase the surface occupation ratio of the elastic fiber on the needle loop surface (Japanese Patent Laid-Open No. 2008-115511). Issue gazette). Thus, by increasing the surface occupation ratio of the elastic fiber on the needle loop surface, it is possible to increase the frictional resistance on the needle loop surface and to provide a high slip prevention function.

JP 2008-104871 A JP 2008-115511 A

  However, as in the method disclosed in Patent Document 1, in the method of applying a resin to the surface of the knitted fabric, the anti-slip function provided by the resin is sufficient, but by forming a resin film, There are problems that the thickness of the knitted fabric is increased and that the surface of the knitted fabric is covered with a resin film, thereby impairing the original air permeability of the knitted fabric. Furthermore, when the resin film deteriorates due to long-term use, use at a high temperature, repeated washing, or the like, or the resin film itself peels off from the knitted fabric, the anti-slip function is impaired.

  Further, the method of using a fiber having a high coefficient of friction such as an elastic fiber for the knitting yarn as in the method disclosed in Patent Document 2 has various problems as described below.

  That is, as described above, when the elastic fiber loop is enlarged and the elastic fiber is exposed to the needle loop surface, there is a problem that the knitted fabric becomes bulky and the appearance is also deteriorated. In addition, since the needle loop in the knitted fabric becomes non-uniform, there is a problem that the knitted fabric is distorted and the entire knitted fabric is curled, and further, a part of the knitting yarn in the knitted fabric is lost. It is easy for a wire to be generated or frayed when the loop is released. This causes a problem that the aesthetic appearance is impaired and the slip prevention function is lowered.

  In order to eliminate distortion and curl of the knitted fabric, post-processing such as stabilizing the width or eliminating the curl must be performed using a tenter or the like. The knitted fabric must be knitted in a state that is wide enough to be processed, in other words, even if a narrow knitted fabric is required, it cannot be knitted with a width corresponding to this, There is also the problem of increased loss. In this sense, it was difficult to cope with a large variety of small lots.

  The present invention has been made in view of the above circumstances, and has a slip prevention function, can suppress knitting of transmission lines and fraying, and can be knitted to an arbitrary width, and has excellent aesthetics. And the objective is to provide the manufacturing method of this knitted fabric.

The reference mode for solving the above problems is as follows:
A knitted fabric knitted in a state in which a knitting yarn is connected to a certain loop in the knitting direction,
The knitted fabric includes, at least in part, a heat fusion elastic yarn as the knitting yarn,
The heat fusion elastic yarn is related to a knitted fabric in which at least a part of the elastic fusion yarn is fused,
This knitted fabric
The knitted fabric is knitted in a state in which the knitting yarn is connected to a certain loop in the knitting direction, and the knitted fabric knitted a knitted fabric including a heat-sealed elastic yarn as the knitting yarn in at least a part thereof Process,
The knitted fabric is heat-set, and is manufactured by a manufacturing method including a step of heat-sealing at least a part of the entangled portions of the heat-bonding elastic yarns.

  According to this knitted fabric, at least a part of the knitted fabric includes a heat-sealed elastic yarn having a high friction coefficient as the knitting yarn, and this heat-sealed elastic yarn appears as a loop (a so-called needle loop portion) on the surface of the knitted fabric. The anti-slip function is exhibited by the heat-sealed elastic yarn.

  The heat-bonding elastic yarn is knitted in a state where a certain loop is connected, and at least a part of the entangled portion, for example, a so-called sinker loop portion, is fused. By unwinding, unraveling of the loop is prevented, and the occurrence of fraying and the occurrence of wires due to partial breakage of the knitting yarn can be suppressed. The “entangled portion” refers to a portion where knitting yarns intersect or overlap each other.

The present invention for solving the above problems
Knitting yarn knitting consists table cloth and the back fabric is knitted in a state in which had been constant loop direction, and the said surface cloth and a back cloth a warp knitted fabric are connected by insertion yarns,
The needle loop of the front fabric and the needle loop of the back fabric are knotted by a mutual sinker loop,
At least one of the front fabric and the back fabric includes a heat fusion elastic yarn as the knitting yarn in at least a part thereof,
The heat fusion elastic yarn is related to a warp knitted fabric in which at least a part of the heat fusion elastic yarn is fused,
This warp knitted fabric
Knitting yarn knitting consists table cloth and the back fabric is knitted in a state in which had been constant loop direction, a warp knitted fabric in which the said surface fabric and the back fabric are connected by insertion yarns, the table cloth The needle loop of the back fabric and the needle loop of the back fabric are connected by a mutual sinker loop , and at least one of the front fabric and the back fabric is thermally fused as the knitting yarn in at least a part thereof. A step of knitting a warp knitted fabric including a dressing elastic yarn;
The warp knitted fabric is heat-set, and is manufactured by a manufacturing method including a step of heat-sealing at least a part of the entangled portions of the heat-bonding elastic yarns.

According to this warp knitted fabric, similar to the above-described knitted fabric, at least a portion thereof includes a heat-fusing elastic yarn having a high coefficient of friction as a knitting yarn. Since at least a part of the entangled part of the elastic ring is fused, the unraveling of the loop can be prevented, and the occurrence of fraying and the occurrence of wires due to a part of the knitting yarn can be suppressed. .

Furthermore, since the needle loop appearing on the surface of the knitted fabric is formed as a constant loop and equally on the front fabric and the back fabric, the knitted fabric is less likely to be distorted and curled. Accordingly, it is not necessary to perform post-processing using a tenter or the like as in the prior art, and a warp knitted fabric having a desired arbitrary width can be knitted, so that it is possible to easily cope with a large variety of small lots.

In addition, since the heat-sealed elastic yarn is fused only at its entangled part, this warp knitted fabric ensures good air permeability unlike the conventional method of forming a resin film on the surface of the knitted fabric. In addition, it exhibits an excellent anti-slip effect.

Further, in this warp knitted fabric, the needle loop is formed equally on the front fabric and the back fabric, and a large loop is not formed on the surface of the knitted fabric, so the thickness of the knitted fabric is reduced. Along with being able to do it, the aesthetics are also excellent.

In the present invention, the heat fusion elastic yarn is used in a partial region or the entire area of the warp knitted fabric. In this case, the heat fusion elastic yarn and the elastic yarn having no heat fusion property are pulled. The knitting yarn is knitted in a state including at least a heat-sealing elastic yarn, such as being used as a knitting yarn in an aligned state. As a matter of course, only the heat fusion elastic yarn may be used for the knitting yarn constituting the loop.

  In addition, when a yarn other than the heat fusion elastic yarn is used as a knitting yarn, there is no limitation on the knitting yarn, and it can be used regardless of whether it is a filament yarn or a spun yarn. There are no restrictions on synthetic fibers and natural fibers.

  Further, in the case where the knitted fabric is composed of a front fabric and a back fabric, the heat-sealed elastic yarn may be included in at least one of the front fabric and the back fabric, but is included in both fabrics. May be. In this case, the knitted fabric has anti-slip functions on both the front and back surfaces.

In addition, the knitted fabric according to the present invention has been organized in Keiami, the knitted fabric according to the above reference aspect may be organized in a weft knitting only. In the case of warp knitting, for example, a single raschel knitting machine, a double raschel knitting machine or a crochet knitting machine can be used for knitting. In the case of weft knitting, a jacquard knitting machine or a raben knitting machine can be used for knitting. .

  In the present invention, the knitting structure is not particularly limited as long as the knitting structure is in a state in which a constant loop is connected in the knitting direction, and an example thereof is chain knitting.

  As described above, according to the present invention, while knitting a continuous loop in the knitting direction, using a heat-sealing elastic yarn as a knitting yarn, a location where the heat-sealing elastic yarns are entangled with each other. Since they are fused, the knitted fabric is not distorted or curled, and a knitted fabric having an arbitrary width can be knitted. In addition, the occurrence of wires and fraying can be suppressed, and the knitted fabric is excellent in terms of beauty.

It is the figure which showed the warp knitted fabric which concerns on one Embodiment of this invention. It is the figure which showed the needle bed of the double raschel knitting machine used for the knitting of the warp knitted fabric. It is an organization chart of the warp knitted fabric concerning one embodiment of the present invention. It is the figure which showed the structure | tissue of the warp knitted fabric which concerns on one Embodiment of this invention in detail. It is the figure which showed the structure | tissue of the warp knitted fabric which concerns on one Embodiment of this invention in detail. It is an organization chart of the weft knitted fabric which concerns on one reference form.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the warp knitted fabric 1 of this example has a two-layer structure in which a front fabric 2 made of heat-sealed elastic yarn 2a and a back fabric 3 made of inelastic yarn 3a are connected by an insertion yarn 4a. Is a knitted fabric.

  The heat-sealing elastic yarn 2a is made of a material having a high friction coefficient, and the heat-sealing elastic yarns 2a intersect or overlap each other (entangled portion) by being heat-set at a predetermined temperature. It is an elastic thread to wear. In addition, as this heat-fusion elastic thread | yarn 2a, a polyurethane elastic thread | yarn can be illustrated, for example, In this example, this polyurethane elastic thread | yarn was employ | adopted. Further, the inelastic yarn 3a and the insertion yarn 4a are not particularly limited, but examples thereof include polyester yarn, filament yarn such as nylon yarn, rayon yarn, and spun yarn. Adopted polyester yarn.

  The warp knitted fabric 1 can be manufactured by knitting using a known double raschel knitting machine having two rows of needle beds as shown in FIG. 2 and then heat setting at a predetermined temperature.

  Specifically, as shown in FIG. 3 to FIG. 5, in the front side needle bed 10 of the double raschel knitting machine, the front side chain knitting structure Wa is knitted by the heat fusion elastic yarn 2 a supplied from the reed 12, while the back side In the needle bed 11, the back-side chain knitting structure Wb is knitted with the inelastic yarn 3 a supplied from the ridge 13. At this time, the stitches of both the needle beds 10 and 11 are connected by the mutual sinker loops, and the front side chain knitting structure Wa and the back side chain knitting structure Wb are connected by the insertion yarn 4a supplied from the collar 14. Needle loop rows (three rows in this example) adjacent in the wale direction are connected by the insertion thread 4a. Further, the heat fusion elastic yarn 2a is knitted in a state where a predetermined tension is applied.

  2 to 5, the solid line indicates the non-elastic yarn 3a, the alternate long and short dash line indicates the heat-sealed elastic yarn 2a, and the broken line indicates the insertion yarn 4a. FIG. 3 is a structure diagram of the warp knitted fabric 1, F · N in the figure indicates the front needle bed 10 and B · N indicates the back needle bed 11. FIG. 4 is a view showing the structure of the warp knitted fabric 1 in detail, and FIG. 5 is a view showing the structure of the warp knitted fabric 1 in more detail.

  Thus, the front fabric 2 and the back fabric 3 are each knitted as a knitted fabric of a chain stitch structure in which a constant loop (needle loop) is connected in the knitting direction (course direction), and the front stitch (needle loop) As a single knitted fabric of a two-layer structure in which Wa1 and the back stitch (needle loop) Wb1 are tightly coupled by the mutual sinker loops Wa2 and Wb2 and the insertion yarn 4a connecting stitches adjacent in the wale direction. Be organized. In this knitted fabric, needle loops are equally formed on the front fabric 2 and the back fabric 3.

  Then, the knitted fabric knitted as described above is heat-set at about 130 to 190 ° C., thereby entangled the heat-sealed elastic yarns 2a (part D indicated by a two-dot chain line in FIG. 5). The heat fusion elastic yarns 2a are fused together.

  The warp knitted fabric 1 manufactured in this way is knitted with the heat-bonded elastic yarn 2a having a high friction coefficient in the front fabric 2, and at the point D where the heat-bonded elastic yarns 2a intersect each other. The heat fusion elastic yarns 2a are fused.

  Thus, the warp knitted fabric 1 of the present example has a slip prevention function on the surface of the surface fabric 2, and furthermore, since the heat fusion elastic yarns 2a are fused, the occurrence of fraying, Even if a defect occurs in a part of the heat fusion elastic yarn 2a, it is possible to prevent the heat fusion elastic yarn 2a from being transmitted.

  In addition, the warp knitted fabric 1 manufactured in this way is formed with a constant loop on each of the front and back fabrics, so that there is no distortion and it is difficult to curl.

  Therefore, it is not necessary to perform post-processing using a tenter as in the prior art, and the knitted fabric can be knitted with a desired arbitrary width, so that it is possible to easily cope with multi-product small-lot production. That is, for example, various different knitted fabrics can be produced at low cost.

  The warp knitted fabric 1 is knitted into a sheet of a predetermined size, for example, and the lining fabric 3 and the shirt or pant fabric are placed on the hem of a sportswear shirt or the waist of a pant. By sewing in the opposed state, the anti-slip function of the front fabric 2 can effectively prevent the shirt from sliding up and the pants from sliding down. Further, by sewing the sheet made of the warp knitted fabric 1 to the cuff of the long-sleeved shirt, it is possible to prevent the sleeves from rolling up.

  Furthermore, the warp knitted fabric 1 can be used not only for preventing slipping of clothes such as sportswear, but also for applications such as sticking to a mobile phone stand to prevent the mobile phone from sliding off the stand.

  Incidentally, the inventor of the present invention uses Mobilon (registered trademark) R (70 denier) manufactured by Nisshinbo Textile Co., Ltd. as the heat fusion elastic yarn 2a, and polyester wool yarn (75 denier) manufactured by Toray Industries, Inc. as the non-elastic yarn 3a. The insert yarn 4a was knitted with a 24 gauge double raschel knitting machine using polyester wooly yarn (75 denier) manufactured by Toray Industries, Inc. and then heat-set at 150 ° C. Knitted fabric 1 was obtained.

  The warp knitted fabric 1 obtained in this way had a good anti-slip function on the surface of the surface fabric 2 and was excellent in aesthetics. Further, no fraying occurred, and even when a part of the heat-sealing elastic yarn 2a was lost, no wire was generated in the heat-sealing elastic yarn 2a.

  As mentioned above, although embodiment of this invention was described, the aspect which this invention can take is not limited to these at all.

In the above example, the mode in which the knitted fabric is knitted by warp knitting is shown, but the knitted fabric according to the reference mode may be knitted by weft knitting using, for example, a jacquard knitting machine. This will be described with reference to FIG. In the following description, the cloth made of the heat-bonding elastic yarn 22a is referred to as the back cloth, and the cloth made of the inelastic yarn 21a is referred to as the front cloth. FIG. 6 is a diagram for explaining the process of knitting the knitted fabric by weft knitting, in which K indicates rubber knitting and T indicates tack knitting.

First, the needle bed is fed from the left direction to the right direction (hereinafter simply referred to as “right direction”) in FIG. 6, and a constant loop is formed in the knitting direction by the inelastic thread 21 a in the front needle bed. (See FIG. 6A), and then, as shown in FIG. 6B, the needle bed is fed from the right direction to the left direction (hereinafter simply referred to as “left direction”). The back needle bed is knitted so as to form a constant loop in the knitting direction by the heat-sealing elastic yarn 22a. Next, the needle bed is fed in the right direction, and the front and back needle beds are tucked so that the loop of the adjacent non-elastic yarn 21a and the loop of the heat fusion elastic yarn 22a are connected by the insertion yarn 23a. After knitting (see FIG. 6C), the needle bed is fed without knitting in the left direction (see FIG. 6D). Next, the needle bed is fed in the right direction, and after knitting with the inelastic yarn 21a in the front needle bed (see FIG. 6 (e)), the needle bed is turned in the left direction as shown in FIG. 6 (f). The needle bed is then fed and knitted with the heat fusion elastic yarn 22a in the back needle bed. Next, after sending the needle bed in the right direction without knitting (see FIG. 6 (g)), the needle bed is sent in the left direction, and tuck knitting with the insertion thread 23a on the front and back needle beds. (See FIG. 6 (h)). Thereafter, the O and score repeatedly a series of operations of FIG. 6 (h) from FIG. 6 (a), it is possible to obtain a predetermined size of the knitted fabric.

  Further, the warp knitted fabric 1 in the above example uses the heat fusion elastic yarn 2a only for the front fabric 2, but the invention is not limited to this, and the heat fusion elastic yarn is also used for the back fabric. May be. In this way, the anti-slip function is exhibited on the front and back surfaces of the knitted fabric.

  In the above example, the entire outer fabric 2 is knitted with the heat-bonding elastic yarn 2a. However, the heat-bonding elastic yarn may be used for a part of the surface fabric depending on the application. good. Further, the knitted fabric may be knitted by aligning the heat fusion elastic yarn and the elastic yarn not having heat fusion properties.

In the above example, the knitted fabric composed of the front fabric 2 and the back fabric 3 is illustrated. However, as one reference mode, a so-called single knitted fabric may be used. In this case, for example, knitting can be performed using a single raschel knitting machine, and the knitted structure is a state in which the inelastic yarn 3a is deleted in FIGS.

DESCRIPTION OF SYMBOLS 1 Warp knitted fabric 2 Front fabric 2a Heat-bonding elastic yarn 3 Back fabric 3a Inelastic yarn 4a Insert yarn 10 Front side needle bed 11 Back side needle bed 12, 13, 14 筬 Wa Front side chain stitch structure Wb Back side chain stitch structure

Claims (2)

Knitting yarn knitting consists table cloth and the back fabric is knitted in a state in which had been constant loop direction, and the said surface cloth and a back cloth a warp knitted fabric are connected by insertion yarns,
The needle loop of the front fabric and the needle loop of the back fabric are connected by a mutual sinker loop,
At least one of the front fabric and the back fabric includes a heat fusion elastic yarn as the knitting yarn in at least a part thereof,
The warp knitted fabric characterized in that at least a part of the heat-sealing elastic yarn is fused at its entangled portion. Knitting yarn knitting consists table cloth and the back fabric is knitted in a state in which had been constant loop direction, a warp knitted fabric in which the said surface fabric and the back fabric are connected by insertion yarns, the table cloth The needle loop of the back fabric and the needle loop of the back fabric are connected by a mutual sinker loop , and at least one of the front fabric and the back fabric is thermally fused as the knitting yarn in at least a part thereof. A step of knitting a knitted fabric including an elastic ring yarn;
A method for producing a warp knitted fabric, comprising: heat-setting the knitted fabric, and heat-sealing at least a part of the entangled portions of the heat-sealed elastic yarns.

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