JP7335030B1 - Lace fabric and its manufacturing method - Google Patents

Abstract

The present invention provides a lace fabric having a soft touch despite the use of heat-fusible yarn.
A mixed yarn having a core yarn 11 and a plurality of covering yarns 12 is used as a ground knitting yarn 10 forming a stitch, and the core yarn 11 is a heat-fusible yarn having a melting point lower than that of the covering yarn 12. The plurality of covering yarns 12 are extended in the same direction as the extending direction of the core yarn 11, and are entangled with the core yarn 11 at a plurality of interlaced portions 13 that exist at intervals in the extending direction of the core yarn 11. A lace fabric in which a part of a yarn 11 is exposed between a plurality of covering yarns 12 and adhered to other yarns, and the finishing stitch is 25 courses/cm or more and 35 courses/cm or less.
[Selection drawing] Fig. 2

Description

The present invention relates to a lace fabric and a method for manufacturing the same.

It is known to manufacture lace fabrics using heat-sealable yarns to prevent fraying from the cut edges. Normally, the lace fabric is heat-treated after being knitted, but the heat-treatment melts part of the heat-fusible yarn and bonds it to other yarns, so that fraying is less likely to occur.

As a lace fabric using heat-fusible yarn, the lace fabric described in Patent Document 1 is known. In this lace fabric, a composite yarn composed of a core yarn, which is a heat-fusible yarn, and a covering yarn having a higher melting point than the core yarn is used as the chain stitch yarn. In this composite yarn, the covering yarn is spirally wound around the core yarn without gaps. When the lace fabric is knitted, the composite yarn is stretched, and the core yarn is exposed through the gaps between the covering yarns and comes into contact with other yarns. By subsequent heat treatment, the core yarn and other yarns are bonded together at their contact points.

Japanese Patent No. 6488300

However, lace fabrics using heat-fusible yarns have a problem in that the yarns constituting them are bonded to each other by means of a melted material, resulting in a lack of softness to the touch.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a lace fabric having a soft feel despite the use of heat-fusible yarn, and to provide a method for producing such a lace fabric.

The present invention includes embodiments shown below.

により求まる推定機上打込Ｙが１０コース／ｃｍ以上１６コース／ｃｍ以下である、レース地。
[1] A mixed yarn having a core yarn and a plurality of covering yarns is used as the ground knitting yarn forming the stitches, and the core yarn is a heat-fusible yarn having a lower melting point than the covering yarn, and the plurality of The covering yarn extends in the same direction as the extension direction of the core yarn, and is entangled with the core yarn at a plurality of interlaced portions that exist at intervals in the extension direction of the core yarn, and is part of the core yarn. is exposed from between a plurality of the covering yarns and adhered to other yarns, the finishing yarn is 25 courses / cm or more and 35 courses / cm or less , and the finishing yarn is X and the elongation is E. To

A lace ground having an estimated on-machine placement Y of 10 courses/cm or more and 16 courses/cm or less .

[2] The lace fabric according to [1 ], wherein the ground knitting yarn has a runner length of 131 cm or more and 153 cm or less.

[3] A mixed yarn having a plurality of covering yarns and a core yarn that is a heat-fusible yarn having a melting point lower than that of the covering yarn, wherein the plurality of covering yarns extend in the same direction as the core yarn. A mixed yarn that extends in the direction of the core yarn and is entangled with the core yarn at a plurality of entangled portions that exist at intervals in the extension direction of the core yarn is used as a ground knitting yarn that forms a stitch, and is beaten on the machine. a step of knitting a warp knitted fabric having a weight of 10 courses/cm or more and 16 courses/cm or less; and a step of melting a part of the yarn and adhering it to another yarn, wherein the final hammering after the heat treatment is 25 courses/cm or more and 35 courses/cm or less.

The lace fabric of the embodiment has a soft feel even though it uses heat-sealable yarn. In addition, according to the lace fabric production method of the embodiment, it is possible to produce a lace fabric that feels soft to the touch despite the use of heat-fusible yarn.

FIG. 2 is a knitting structure diagram of the lace fabric of the embodiment. FIG. The figure which shows the mixed yarn in a relaxed state. FIG. 4 is a diagram showing a mixed yarn in a stretched state;

1. Configuration of Lace Fabric The lace fabric of the present embodiment is a lace fabric knitted by warp knitting. As shown in FIG. 1, the lace fabric includes ground knitting yarns 10 forming stitches, stretch yarns 20 knitted into the ground knitting structure, and inserts knitted into the ground knitting structure in a manner different from the stretch yarns 20. It is formed by a thread 30. In this embodiment, the ground knitting yarn 10 forms a chain stitch structure.

The stretch yarns 20 are inserted and woven into all the wales of the chain stitch structure, thereby imparting elasticity to the entire lace fabric in the wale direction (that is, the vertical direction, the knitting direction, and the vertical direction in FIG. 1). It is Each stretch yarn 20 is inserted into one wale.

In addition, the insertion yarn 30 has a portion that is woven over two or more wales of the ground knitting structure. As a more specific example, as shown in FIG. 1, a course in which the insertion yarn 30 is inserted in only one wale, a course in which it is inserted in two wales, and a course in which it is inserted in three wales. have. In FIG. 1, only one insertion yarn 30 is shown to make the knitting structure easier to see, but in an actual lace fabric, the insertion yarn 30 is inserted in all the wales.

Adjacent wales are connected to each other in a course in which the insertion yarn 30 is inserted over two or more wales. On the other hand, in the course where the insertion yarn 30 is inserted in only one wale, adjacent wales are not connected. A portion where adjacent wales are not connected is a through-hole penetrating in the thickness direction of the lace ground.

Patterns are formed on the lace ground due to the placement of the through holes and the unevenness and density of the threads depending on the location. Various patterns are formed on the lace ground depending on the shape, size and arrangement of the through holes. In other words, various patterns are formed on the lace ground depending on the method of inserting the insert yarn 30 . Therefore, the method of inserting the insertion thread 30 is not limited to that shown in FIG.

The knitting structure in FIG. 1 is represented by chain numbers as follows.
Ground knitting yarn 10 (reed L1): 20/02/
Insertion thread 30 (reed L2): 22/66/44/66/00/66/22/66/
Elastic thread 20 (reed L3): 00/22/
As can be seen from FIG. 1 and chain numbers, in this knitting structure, each of the inserted insertion yarn 30 and stretch yarn 20 is tacked on the ground knitting yarn 10 . The forward stitching means that the insertion direction (underlap direction) of the inserted yarns (insertion yarn 30 and stretch yarn 20) is the same as the overlap direction of the yarn (ground knitting yarn 10) forming the ground knitting structure. That is.

In addition, each thread|yarn is typically drawn in FIG. In an actual lace fabric, tension acts on each yarn, so the stitches of the ground knitting yarn 10 are smaller than the stitches shown in FIG. there is

In such a lace fabric, the ground knitting yarns 10 are bonded to each other in at least part of the contact portions between the same ground knitting yarns 10, and the ground knitting yarns 10 are bonded in at least part of the contact portions between the ground knitting yarns 10 and the stretch yarns 20. 10 and the stretch yarn 20 are bonded together, and the ground knitting yarn 10 and the insertion yarn 30 are bonded together in at least part of the contact portion between the ground knitting yarn 10 and the insertion yarn 30 .

Furthermore, in the present embodiment, the insertion yarns 30 are bonded to each other in at least part of the contact portion between the insertion yarn 30 and the other insertion yarn 30, and at least part of the contact portion between the insertion yarn 30 and the stretch yarn 20 Also, the insertion thread 30 and the elastic thread 20 are adhered.

In addition, the lace fabric of the present embodiment has coarser stitches than conventional lace fabrics. Specifically, in the lace ground of the present embodiment, the final hammering is 25 courses/cm or more and 35 courses/cm or less. Here, finishing stitching means the density of stitches in the wale direction on the lace ground after knitting and heat setting are completed. One stitch is one course.

Further, the race ground of the present embodiment has an estimated on-machine impact of, for example, 10 courses/cm or more and 16 courses/cm or less. The on-machine hammering is a numerical value during manufacturing, but it can be roughly estimated from the finish hammering and elongation of the lace fabric that has been completed through heat treatment and the like. Specifically, the on-machine impact Y can be estimated by approximation using the following equation.

Here, X is the final beating, and E is the elongation measured according to the elongation rate A method (constant speed elongation method) of JIS L-1096. For example, if the final lace ground is 30 courses/cm and the elongation is 100% (i.e. stretches twice as long), the on-machine punch is estimated at 15 courses/cm. The on-machine impact Y estimated by this formula is referred to as an estimated on-machine impact.

In addition, in the lace fabric of the present embodiment, the runner length of the ground knitting yarn 10 is short in spite of the coarse stitches. Specifically, in the lace fabric of the present embodiment, the runner length of the ground knitting yarn 10 is 131 cm or more and 153 cm or less. Here, the runner length is the length of yarn used for knitting one rack (480 courses) of lace fabric.

2. Yarn Configuration In the lace fabric of the present embodiment, a mixed yarn is used as the ground knitting yarn 10 . As shown in FIGS. 2 and 3, the mixed yarn used for the ground knitting yarn 10 is formed from one core yarn 11 and a plurality of covering yarns 12 arranged around the core yarn 11. It is 2 and 3, for the sake of convenience, the core yarn 11 is drawn as a hatched thick yarn, and the covering yarn 12 is drawn as a single line.

In this embodiment, the core thread 11 is a heat-fusible elastic thread. Due to the elasticity of the core yarn 11, the mixed yarn has elasticity, and the lace fabric has elasticity.

The plurality of covering yarns 12 extend in the same direction as the extending direction of the core yarn 11 when viewed broadly. When the mixed yarn is in a relaxed state (that is, when no tension is exerted to extend the mixed yarn), the covering yarn 12 undulates greatly as shown in FIG. However, when the mixed yarn is stretched (that is, when tension is exerted to stretch the mixed yarn), the covering yarn 12 is less waviness than in the relaxed state, as shown in FIG.

Here, the extension direction of the core yarn 11 is the extension direction when the core yarn 11 is extended linearly, but the ground knitting yarn 10 forms a stitch and the core yarn 11 is curved. When it is, it is the direction along the curve.

As shown in FIGS. 2 and 3 , the plurality of covering yarns 12 are entwined with the core yarn 11 at a plurality of entangled portions 13 spaced apart in the extending direction of the core yarn 11 . By entangling the covering yarn 12 with the core yarn 11 in this manner, the covering yarn 12 and the core yarn 11 are integrated to form a single mixed yarn. In the entangled portion 13, for example, the covering yarn 12 is entangled with the core yarn 11 for about half to one circumference, or the covering yarns 12 are entangled with each other.

A portion between the entangled portions 13 is a non-entangled portion where the covering yarn 12 is not entangled with the core yarn 11. - 特許庁In such a non-entangled portion, part of the core yarn 11 is exposed from between the covering yarns 12 even in the relaxed state. Further, in such a mixed yarn, the exposed area of the core yarn 11 is further increased in the stretched state. Also, in the non-entangled portion, the covering yarn 12 extends in the same direction as the extending direction of the core yarn 11 .

As described above, the entangled portions 13 are present here and there at certain intervals in the extending direction of the core yarn 11 . The interval L of the entangled portion 13 is when the mixed yarn is in a relaxed state (however, when the core yarn 11 is pulled into a straight line within a range in which the length of the mixed yarn is not stretched), For example, it is 1.5 mm or more and 3.0 mm or less. In the lace fabric, tension acts on the mixed yarn and the mixed yarn is stretched. At this time, the interval L between the intertwined portions 13 is, for example, 2.0 mm or more and 5.0 mm or less.

In addition, as shown in FIGS. 2 and 3 , the interlaced portion 13 has a certain length in the extension direction of the core yarn 11 . Therefore, the interval L between the intertwined portions 13 is, strictly speaking, the interval between the central positions of the intertwined portions 13 in the length direction.

2 and 3 illustrate the case where the intertwined portion 13 is shorter than the non-entangled portion. However, the entangled portion 13 may be longer than the non-entangled portion.

The core yarn 11 in the mixed yarn is a heat-fusible elastic yarn having a melting point lower than that of the cover yarn 12 and stretch yarn 20 . A low melting point polyurethane elastic thread is preferable as such a core thread 11 . The melting point of the low melting point polyurethane elastic thread is, for example, 135° C. or higher and 165° C. or lower. The core thread 11 is, for example, 18 dtex or more and 22 dtex or less.

Moreover, it is preferable that the covering yarn 12 is a yarn that is difficult to heat-seal with the core yarn 11 . Although the type of the covering thread 12 is not limited, it is, for example, a non-elastic thread, more specifically a nylon thread or a polyester thread. If the covering thread 12 is a nylon thread, its melting point is, for example, 210° C. or higher and 220° C. or lower. Moreover, when the covering yarn 12 is a polyester yarn, its melting point is, for example, 250° C. or higher and 260° C. or lower.

The number of covering yarns 12 in one mixed yarn is, for example, 5 or more and 24 or less. In addition, the total of a plurality of covering yarns 12 used for one core yarn 11 is, for example, 30 dtex or more and 55 dtex or less.

Also, the stretch yarn 20 is an elastic yarn having a higher melting point than the core yarn 11 described above. As a more detailed example, the stretch yarns 20 are polyurethane elastic yarns and are uncoated yarns. The melting point of the stretchable thread 20 is, for example, 200° C. or higher and 230° C. or lower. The elastic thread 20 is, for example, 44 dtex or more and 400 dtex or less.

As the insertion yarn 30, a mixed yarn similar to the ground knitting yarn 10 is used. That is, the insertion yarn 30 includes the core yarn 11, which is a heat-fusible elastic yarn with a low melting point, and a plurality of covering yarns that are entangled with the core yarn 11 at interlaced portions 13 that are spaced apart in the extension direction of the core yarn 11. 12. Since the core yarn 11 of the insertion yarn 30 inserted over two wales or more is an elastic yarn, the lace fabric has stretchability in the course direction (that is, the horizontal direction, the horizontal direction in FIG. 1).

Here, the insertion yarn 30 and the ground knitting yarn 10 may be completely the same mixed yarn. Also, the insertion yarn 30 and the ground knitting yarn 10 may not be completely the same mixed yarn. Any one or more of the 12 numbers may be different.

3. Manufacturing Method of Lace Fabric When manufacturing the lace fabric, first, the thread that will be the material of the lace fabric is prepared. The method of manufacturing the mixed yarn used as the ground knitting yarn 10 and the insertion yarn 30 is not limited, but as an example, a fluid entangling method is adopted. In the fluid entangling method, the core yarn 11 and the covering yarn 12 are entangled by the action of fluid. The interlace method and the Taslan method are known as representative examples of the fluid entanglement method.

In the interlacing method, the core yarn 11 and the covering yarn 12 are sent to a known interlacing nozzle, and air is sent in the interlacing nozzle from a direction orthogonal to the traveling direction of these yarns, so that the core yarn 11 and the covering yarn 12 are intertwined with. Further, in the Taslan method, the core yarn 11 and the covering yarn 12 are sent to a known Taslan nozzle, and air is sent in the Taslan nozzle from almost the same direction as the traveling direction of these yarns, and the core yarn 11 and the covering yarn 12 are intertwined with. In either method, the core yarn 11 and the covering yarn 12 are entangled without twisting the mixed yarn.

The ground knitting yarn 10, the insertion yarn 30, and the elastic yarn 20 thus produced are used to knit the warp knitted fabric that is the basis of the lace fabric of the present embodiment. A known warp knitting machine such as a Rassel machine is used for knitting the warp knitted fabric. The ground knitting yarn 10 and the stretch yarn 20 are supplied as a full set from the ground reed of the warp knitting machine. In addition, the insertion yarn 30 is supplied as a full set from the jacquard reed or ground reed of the warp knitting machine.

During knitting, the runner length of the ground knitting yarn 10 is adjusted to 131 cm or more and 153 cm or less. Adjustment of the runner length is performed by adjusting the yarn delivery amount from the beam.

Further, during knitting, the on-machine hammering is set to 10 courses/cm or more and 16 courses/cm or less. The on-machine stitch density is the density of stitches in the wale direction in the warp knitted fabric immediately after knitting. In detail, on-machine driving is a take-up roller (located downstream of the knitting position in the flow of the warp knitted fabric from the knitting position where knitting is performed with the knitting needles, and the warp knitted fabric immediately after knitting with the knitting needles is It is the driving numerical value up to the first passing roller). One stitch is one course. On-press striking can be controlled by adjusting the amount of rotation of the take-up roller. Here, the amount of rotation is the amount that the warp knitting machine rotates while knitting one course. The smaller the amount of rotation of the take-up roller, the greater the on-machine impact.

The warp knitted fabric that has passed through the winding roller is wound around a fabric winding shaft that is arranged further downstream in the flow of the warp knitted fabric. At the timing when the warp knitted fabric is wound around the fabric winding shaft, the driving numerical value indicating the density of the stitches in the wale direction becomes larger than the above on-machine driving.

The knitted warp knitted fabric is dyed and then heat set (heat treated). The heat setting is performed at a temperature above the melting point of the core yarn 11 of the ground knitting yarn 10 and the insertion yarn 30 and above the melting points of the other yarns (that is, the covering yarn 12 of the ground knitting yarn 10, the covering yarn 12 of the insertion yarn 30, and the stretch yarn 20). also takes place at a lower temperature. As described above, when the melting point of the core yarn 11 is 135° C. or higher and 165° C. or lower, the melting point of the stretchable yarn 20 is 200° C. or higher and 230° C. or lower, and the melting point of the covering yarn 12 is 210° C. or higher, for example, 175° C. or higher It is heat set at a temperature below 185°C. It should be noted that it is preferable not to perform heat setting such that the core yarn 11 is completely melted, but to perform heat setting such that the surface of the core yarn 11 is melted and fused while leaving the shape of the yarn.

During heat setting, the warp knitted fabric is under tension. The warp knitted fabric is stretched by the tension, and the ground knitting yarn 10 constituting the warp knitted fabric is also stretched. Therefore, the core yarn 11 of the ground knitting yarn 10 during heat setting is exposed more than in the relaxed state.

Such heat setting melts the core yarn 11 of the ground knitting yarn 10, and the core yarn 11 exposed between the covering yarns 12 is fused with other yarns. As a result, as described above, the ground knitting yarns 10 are bonded to each other in at least part of the contact portions between the same ground knitting yarns 10, and the ground knitting yarns 10 are bonded in at least part of the contact portions between the ground knitting yarns 10 and the stretch yarns 20. The yarn 10 and the stretch yarn 20 are bonded together, and the ground knitting yarn 10 and the insertion yarn 30 are bonded together in at least part of the contact portion between the ground knitting yarn 10 and the insertion yarn 30 .

Furthermore, the core yarn 11 of the insertion yarn 30 is also melted by the heat setting, and the core yarn 11 exposed between the covering yarns 12 is fused with other yarns. As a result, as described above, the insertion yarns 30 are bonded to each other even at least part of the contact portion between the insertion yarn 30 and the other insertion yarn 30, and at least the contact portion between the insertion yarn 30 and the elastic yarn 20 is bonded. The insertion thread 30 and the stretch thread 20 are also adhered to each other in some areas.

The finish stitching of the warp knitted fabric after heat setting is 25 courses/cm or more and 35 courses/cm or less. Here, it can be seen that the finishing beat is larger than the on-machine beat, and the warp knitted fabric after heat setting is shrunk more than the warp knitted fabric immediately after knitting. This is due to the fact that the ground knitting yarn 10 forming the stitches has elasticity, and the fact that the elastic yarn 20 and the insertion yarn 30 are inserted, respectively.

Finally, the heat-set warp knitted fabric is cut to form a lace fabric as a product. Here, since the yarns are bonded to each other by the heat-sealing property of the core yarn 11 as described above, fraying is less likely to occur at the ends of the cut lace fabric. Therefore, it is not necessary to apply another material to the cut portion of the lace material. The cut lace fabric is used for clothing such as the back of shorts, which requires moderate stretchability and good wearing comfort.

4. Effect As described above, in the lace fabric of the present embodiment, a mixed yarn having the core yarn 11 and the covering yarn 12 is used as the ground knitting yarn 10, and the core yarn 11 of the ground knitting yarn 10 is other yarn, for example, It is adhered to the core yarn 11 and stretch yarn 20 of another ground knitting yarn 10. - 特許庁Therefore, the lace fabric is less likely to fray from the cut.

Here, since the core yarn 11 is a heat-fusible yarn having a lower melting point than the covering yarn 12 and the stretch yarn 20, it is heat set at a temperature equal to or higher than the melting point of the core yarn 11 and lower than the melting points of the covering yarn 12 and the stretch yarn 20. By performing the above, the core yarn 11 of the ground knitting yarn 10 can be bonded to the core yarn 11 and the stretch yarn 20 of the same ground knitting yarn 10 without damaging the covering yarn 12 and the stretch yarn 20 .

In the mixed yarn used as the ground knitting yarn 10, a plurality of covering yarns 12 extend around the core yarn 11 in the same direction as the extension direction of the core yarn 11. It is entwined with the core thread 11 . As described above, in such a mixed yarn, part of the core yarn 11 is exposed even in the relaxed state, and the exposed area of the core yarn 11 is further increased in the stretched state. Therefore, the number of bonding locations between the core yarns 11 of the mixed yarns and between the core yarns 11 and the elastic yarns 20 is large, and the bonding area at each bonding location is also large.

Therefore, in the lace fabric of the present embodiment in which such a mixed yarn is used as the base knitting yarn 10, a composite yarn (a composite yarn in which a covering yarn is spirally wound around a core yarn without gaps) as described in Background Art ) is used as the ground knitting yarn, it is less likely to fray.

In addition, since the core yarn 11 of the ground knitting yarn 10 used in the present embodiment is covered with the covering yarn 12, excessive bonding with other yarns is unlikely to occur. Therefore, the feel of the lace fabric becomes soft.

In addition, in the mixed yarn used as the ground knitting yarn 10, the covering yarn 12 is entangled with the core yarn 11 only at the entangled portion 13, and the covering yarn 12 is not entwined with the core yarn 11 at the non-entangled portion. Therefore, in the non-entangled portion, there is a slight gap between the covering yarn 12 and the core yarn 11, and there is also a slight gap between the covering yarns 12. Due to such gaps, the texture of the mixed yarn is good, and the touch of the lace fabric using the mixed yarn as the ground knitting yarn 10 is soft.

Further, in the lace ground of the present embodiment, the final hammering is 25 courses/cm or more and 35 courses/cm or less. Conventionally, the finish stitching of a lace fabric using a heat-fusible yarn was about 45 courses/cm, so it can be seen that the stitches of the lace fabric of this embodiment are much coarser than those of the conventional one. Such coarse stitches make the feel of the lace fabric very soft. However, the thickness of the lace ground is sufficiently ensured by setting the final hammering to 25 courses/cm or more.

As described above, the special mixed yarn is used as the ground knitting yarn 10, and the finish driving is 25 courses/cm or more and 35 courses/cm or less. Despite the use of thread, it feels soft to the touch.

Further, in the lace fabric of the present embodiment, the runner length of the ground knitting yarn 10 is 131 cm or more and 153 cm or less. When the runner length is 131 cm or more, the feel of the lace fabric becomes softer. In addition, the runner length of 153 cm or less makes the pattern of the lace fabric clearer.

Furthermore, in the lace fabric of the present embodiment, as the insertion yarn 30, the same mixed yarn as the ground knitting yarn 10, that is, the core yarn 11, which is a heat-fusible elastic yarn with a low melting point, and the extension of the core yarn 11 A mixed yarn consisting of a plurality of covering yarns 12 extending in the direction and entangled with the core yarn 11 at the entangled portion 13 is used. Therefore, not only the core yarn 11 of the ground knitting yarn 10 but also the core yarn 11 of the insertion yarn 30 is fused with surrounding yarns. As a result, the effect of preventing fraying of the lace fabric is further enhanced.

Here, when the same mixed yarn as the ground knitting yarn 10 is used as the insertion yarn 30, the number of kinds of yarns to be prepared for manufacturing the lace ground can be reduced. Further, when a mixed yarn thicker than the ground knitting yarn 10 is used as the insertion yarn 30, the bursting strength of the lace fabric is improved.

In addition, in the mixed yarn used as the ground knitting yarn 10 and the insertion yarn 30, when the thickness of the core yarn 11 is 18 dtex or more and 22 dtex or less, the thickness of the plurality of covering yarns 12 around the core yarn 11 is 30 dtex or more and 55 dtex or less in total, the covering yarn 12 can cover the core yarn 11 so that the core yarn 11 can be appropriately exposed. Further, if the thicknesses of the core yarn 11 and the covering yarn 12 are within this range, the mixed yarn will have an appropriate thickness, and the lace fabric will have high strength and a soft feel.

Further, if the number of the covering yarns 12 covering the core yarn 11 is 5 or more and 24 or less, the covering yarn 12 can appropriately cover the core yarn 11 .

If the core thread 11 is a low melting point polyurethane elastic thread and the stretchable thread 20 is a polyurethane elastic thread, the core thread 11 and the stretchable thread 20 are easily heat-sealed.

Also, in general, if the stretchable insert yarn is tucked against the base knitting yarn, problems such as the yarn popping out from the cut edge of the lace fabric and conspicuously occur when washing is repeated. Cheap. This is because the deformation of the stitches of the ground knitting yarn is smaller in the case of normal knitting than in the case of reverse knitting, and the insertion yarn is more likely to come off from the stitches of the ground knitting yarn. However, in the lace fabric of the present embodiment, although the insertion yarn 30 and the stretch yarn 20 are tacked on the ground knitting yarn 10, the core yarn 11 of the ground knitting yarn 10 is bonded to the stretch yarn 20 and the insertion yarn 30. Therefore, such problems are less likely to occur.

Further, in the method of manufacturing a lace fabric in the present embodiment, the step of knitting the warp knitted fabric using the ground knitting yarn 10 having the core yarn 11 which is the heat-sealing yarn and the plurality of covering yarns 12. After that, a step of heat-treating the warp knitted fabric to melt a portion of the core yarn 11 exposed between the plurality of covering yarns 12 and to bond it to other yarns is performed. A manufacturing method including these steps makes it possible to manufacture a lace fabric that is soft to the touch despite the use of heat-sealable yarns.

Further, in the step of knitting the warp knitted fabric, the on-machine striking of the warp knitted fabric is set to 10 courses/cm or more and 16 courses/cm or less. Conventionally, in the method of manufacturing a lace fabric using a heat-fusible yarn, the on-machine driving was about 22 courses/cm. I understand. Since the stitches immediately after knitting are coarse, the touch of the lace fabric after the heat treatment is very soft, and the elongation is increased. However, when the on-machine stitching is 10 courses/cm or more, it is possible to prevent the warp knitted fabric from becoming difficult to knit.

When the completed lace ground is pulled, the stitches are greatly stretched to the state when the stitches are coarse immediately after knitting (that is, the state when the on-machine driving value is small). Therefore, when the on-machine hammering is as small as 10 courses/cm or more and 16 courses/cm or less, the finished lace fabric becomes a part of the clothing, and the clothing is repeatedly worn and washed, resulting in the stitches of the lace fabric. It will grow again and again. In general, as the stitches are stretched many times, the elastic insertion yarn is easily pulled out of the stitches of the ground knitting yarn, and at the cut edge of the lace fabric, the elasticity that is pulled out of the stitches of the ground knitting yarn The insertion thread is large and easy to pop out. However, in the lace fabric of this embodiment, since the core yarn 11 of the ground knitting yarn 10 is adhered to the elastic yarn 20 and the insertion yarn 30, such jumping out is less likely to occur.

In addition, since the finish hammering after the heat treatment is 25 courses/cm or more and 35 courses/cm or less, the finished lace fabric has a soft feel. Further, in the step of knitting the warp knitted fabric, by setting the runner length of the ground knitting yarn 10 to 131 cm or more and 153 cm or less, the completed lace fabric tends to have a soft feel.

5. Modifications The above embodiments are examples, and the scope of the invention is not limited to the above embodiments. Various modifications can be made to the above embodiments without departing from the scope of the invention.

A plurality of modified examples will be described below, but any one of the plurality of modified examples may be applied to the above embodiment, or any two or more of the plurality of modified examples may be combined. may apply. Combinations can be made freely as long as it is technically possible.

(1) Modification 1
In FIG. 1, one ground knitting yarn 10 forms stitches only in the same wale to form a chain stitch structure, but the ground knitting yarn 10 may be swung laterally as appropriate. That is, one ground knitting yarn 10 forms stitches in the same wale over several courses, moves to the next wale, forms stitches again in that wale over several courses, and repeats the process. A chain stitch structure may be formed. By laterally swinging the ground knitting yarn 10 every several courses, the adjacent wales are connected by the ground knitting yarn 10, and the fraying prevention effect is enhanced.

However, in the case of this modified example, the portion of the ground knitting yarn 10 that has moved to the adjacent wale appears in the through hole of the lace fabric, which affects the appearance of the lace fabric. In order to eliminate such an influence on the appearance, it is better that one ground knitting yarn 10 forms stitches only in the same wale, as shown in FIG.

(2) Modification 2
Although the ground knitting yarn 10 forms a chain stitch structure in the above embodiment, the ground knitting structure is not limited to this. For example, the ground knitting structure may be a tulle structure or a power net structure. Even when the ground knitting structure is other than the chain knitting structure, the mixed yarn as described above is used as the ground knitting yarn. Also, when the ground knitting structure is other than the chain stitch structure, an elastic yarn similar to the elastic yarn 20 is inserted, and an insertion yarn similar to the insertion yarn 30 is inserted over two or more wales. is preferred.

(3) Modification 3
The core yarn 11 of the mixed yarn used for the ground knitting yarn 10 and the insertion yarn 30 has a lower melting point than the cover yarn 12 of the same mixed yarn and the elastic yarn 20 knitted into the lace fabric, and has heat-fusibility. Any thread may be used, and it is not limited to the low-melting-point polyurethane elastic thread as in the above embodiment. For example, the core yarn 11 of the mixed yarn may be a low-melting-point nylon yarn having heat-sealability.

(4) Modification 4
The insertion yarn 30 inserted over two wales or more may not be a mixed yarn composed of a core yarn and a covering yarn, and may be, for example, a low melting point polyurethane elastic yarn not covered with a covering yarn. In addition, the insertion thread 30 may not be heat-fusible, and may be, for example, a mixed fiber made of a non-heat-fusible core thread (for example, a high-melting-point polyurethane elastic thread) and a covering thread, or may be covered with a covering thread. It may be a high-melting-point polyurethane elastic thread or the like. Also, the insertion thread 30 may be a non-elastic thread such as a nylon thread.

(5) Modification 5
The mixed yarns shown in FIGS. 2 and 3 are only examples of mixed yarns that can be used in the present invention. The waviness and looseness of the covering yarn 12 are not limited to those shown in FIGS.

Although it is preferable that there are gaps between the core yarn 11 and the covering yarn 12 and between the covering yarns 12, the size of these gaps may be larger than the gaps shown in FIGS. Good or small.

DESCRIPTION OF SYMBOLS 10... Ground knitting yarn, 11... Core yarn, 12... Covering yarn, 13... Interlaced part, 20... Elastic yarn, 30... Insertion yarn

Claims (3)

A mixed yarn having a core yarn and a plurality of covering yarns is used as the ground knitting yarn forming the stitches,
The core yarn is a heat-fusible yarn having a lower melting point than the covering yarn,
A plurality of the covering yarns are extended in the same direction as the extension direction of the core yarn, and are entangled with the core yarn at a plurality of interlaced portions that exist at intervals in the extension direction of the core yarn,
A part of the core yarn is exposed from between the plurality of covering yarns and adhered to other yarns,
Finish implantation is 25 courses/cm or more and 35 courses/cm or less,
When finishing hammering is X and elongation is E

A lace ground having an estimated on-machine placement Y of 10 courses/cm or more and 16 courses/cm or less . 2. The lace fabric according to claim 1 , wherein the ground knitting yarn has a runner length of 131 cm or more and 153 cm or less. A mixed yarn having a plurality of covering yarns and a core yarn which is a heat-fusible yarn having a melting point lower than that of the covering yarn, wherein the plurality of covering yarns extend in the same direction as the extending direction of the core yarn. In addition, the mixed yarn entangled with the core yarn at a plurality of entangled portions existing at intervals in the extending direction of the core yarn is used as a ground knitting yarn forming a stitch, and the on-machine driving is 10. a step of knitting a warp knitted fabric at a course/cm or more and 16 courses/cm or less;
a step of heat-treating the warp knitted fabric to melt a portion of the core yarn exposed from between the plurality of covering yarns to adhere it to another yarn;
The finish implantation after the heat treatment is 25 courses/cm or more and 35 courses/cm or less,
How to make lace fabric.

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