TWI669425B - Lace knit - Google Patents

Abstract

The invention provides a lace knitted fabric with good appearance and good texture. The first contact portion 50 of the chain knitting yarn 21 and the first insertion yarn 23 and the second contact portion 55 of the chain knitting yarn 21 and the second insertion yarn 22 are bonded to prevent deformation of the lattice. Thereby, a good-looking lace knitted fabric can be obtained, and the excellent appearance can be maintained for a long period of time. Furthermore, since the knitting of the chain knitting yarn 21, the first inserting yarn 23, and the second inserting yarn 22 based on knitting into the entire lace knitted fabric 20 is used, the uniformity of vision and touch is not obtained. Impairs beauty and texture. Moreover, as in the case where all the first and second contact portions 50 and 55 are connected, the stretchability and flexibility are not impaired. In this way, a stretchable knitted fabric 20 having good appearance and excellent texture can be obtained.

Description

Lace knit

The present invention relates to a lace knitted fabric which can be preferably used as a fabric or frills of elastic underwear for women.

Typical prior art lace knitted fabrics are described in Patent Documents 1 and 2, for example. A technique is proposed in which the lace knitted fabric includes a covering yarn obtained by winding a covering yarn around a core yarn, and knitting the chain knitting yarn constituting the chain knitting structure as a stretch yarn in the weft direction The inserted yarn of the knitting structure is bonded to the contact portion by thermal fusion, and the loose yarn in the cut portion is prevented. [Prior Art Literature] [Patent Literature] [Patent Literature 1] Japanese Patent Laid-Open No. 2008-280627 [Patent Literature 2] Japanese Patent Laid-Open No. 2011-219876

[Problems to be Solved by the Invention] In the above-mentioned prior art, the chain knitting yarn and the inserting yarn are connected at the contact portion to prevent loose yarns, etc., but there is a problem that it is perpendicular to the weft direction As for the tensile force in the warp direction, the bonding strength is low, and a sufficient anti-scattering effect cannot be obtained. Therefore, an object of the present invention is to provide a lace knitted fabric with good appearance and good texture. [Technical means for solving the problem] The present invention is a lace knitted fabric, which is characterized by comprising: a chain knitting yarn, which constitutes a chain knitting structure in which a plurality of loop portions are connected in a weft direction and a plurality of rows are formed in a warp direction; ; The first insert yarn is an elastically stretchable person who inserts each loop portion of the chain knitting yarn in the weft direction and knits into the chain knitting structure, and gives the chain knitting direction to the weft direction Stretchability; and a second insert yarn, which has elastic stretchability, is wound around each loop portion of a chain-type knitting yarn constituting a chain-type knitting structure, and is connected with the one chain-type knitting Each loop portion of the chain knitting yarn organized in the chain knitting structure adjacent to the warp direction imparts stretchability in the warp direction to each chain knitting structure; the first insertion yarn is connected to each loop of the chain knitting yarn The position where the shape-shaped portion is in contact with the chain knitting yarn, and the second insertion yarn is located at the position in contact with each loop portion of the chain knitting yarn, and is connected with the chain knitting yarn. The chain knitting yarn and the second insertion yarn of the present invention are characterized in that they are a composite yarn including a core yarn and a covered yarn, the core yarn includes a single-fiber yarn made of a hot-melt synthetic resin, and the covered yarn includes Long-fiber yarn made of hot-melt synthetic resin with a melting temperature higher than that of the core yarn. In addition, the first insertion yarn of the present invention is characterized in that it is an elastic yarn including a heat-fusible synthetic resin fiber yarn having a melting temperature higher than that of the core yarn of the chain knitting yarn and having a fineness of 40 denier or more and 420 denier or less. Further, the chain knitting yarn and the second insertion yarn of the present invention are characterized in that the system knitting yarn and the second insertion yarn are elastic yarns having a fineness of 10 denier or more and 280 denier or less. [Effect of the Invention] According to the present invention, the first insertion yarn and the chain knitting yarn are attached to the plurality of first contact portions, and the second insertion yarn and the chain knitting yarn are attached to the plurality of second contact portions. Therefore, High tensile strength can be obtained in either of the weft loop direction and the warp loop direction, and regardless of the cutting direction of the lace knitted fabric, the occurrence of loose yarn can be prevented. Thereby, the positional deviation of the chain knitting yarn and the first insertion yarn and the positional deviation of the chain knitting yarn and the second insertion yarn can be prevented, and the lattice deformation caused by such positional deviation can be prevented. Therefore, even if the external force caused by the manufacturing process such as sewing or cutting of the lace knitted fabric, or the external force caused by the use state such as wearing or washing, acts, the deformation of the lattice can be prevented, and the excellent appearance can be maintained for a long time. Furthermore, the chain knitting yarn knitted into the entire lace knitting fabric is joined with the first insertion yarn, and the chain knitting yarn is joined with the second insertion yarn. Therefore, the uniformity is obtained visually and tactually, without impairing the appearance. And texture to obtain a lace knitted fabric that maintains stretchability and good texture. Here, "texture" refers to a hand feeling, and good texture refers to a soft hand. In this way, a highly elastic lace knitted fabric with good appearance and good texture can be obtained. In addition, according to the present invention, it is possible to prevent the adhesive portion of the hot-melt synthetic resin that is hardened by the adhesive from directly contacting the skin, lighten the burden on the skin, and reduce skin damage and the like. In addition, according to the present invention, by selecting the thickness of the first insertion yarn, it is possible to obtain a wearing pressure (fitting feeling or elastic feeling) according to the use. In addition, according to the present invention, the combination of the core yarn and the covered yarn, or the thickness of the chain knitting yarn and the second insertion yarn can improve the adhesion rate of each yarn or change the feeling of lace.

FIG. 1 shows a knitting structure diagram of a portion of the lace knitted fabric 20 as one embodiment of the present invention, and FIG. 2 shows lace other than the chain knitting yarn 21 and the first and second insertion yarns 22 and 23 to show lace. Knitting organization chart of the knitted fabric 20. These figures 1 and 2 schematically show the knitting organizer for easy understanding. The actual knitting structure of the lace knitted fabric 20 is in a state where the curvature of the first loop portion 24 and the second loop portion 25 is as follows. The radius is small and the yarns 21, 22, 23 are extremely close or in contact. In FIG. 1, for the sake of easy understanding, the chain knitting yarn 21 is indicated by a hatched line with a downward sloping line and the first insert yarn 23 is indicated with a hatched line with a sloping line that descends to the right. In FIG. 2, the thicknesses of the yarns 21 and 23 are omitted. Furthermore, in this embodiment, a knitted fabric knitted with each of the yarns 21 to 23 is referred to as a precursor knitted fabric. The lace knitted fabric 20 is obtained by heating a precursor knitted fabric. Furthermore, a product manufactured using the knitted lace fabric 20 is referred to as a knitted fabric product. The lace knitted fabric 20 of this embodiment is a warp knitted fabric, which is a Raschel warp knitted with a Raschel warp, and is an elastic knit with elasticity. The lace knitted fabric 20 is knitted using a yarn including a chain knitting yarn 21, a second insertion yarn 22, and a first insertion yarn 23, and a plurality of lattices are formed by the yarns 21 to 23, and each lattice is formed by each lattice. Surrounded by a plurality of through holes. Such a lace knitted fabric 20 is formed into a lace pattern by the shape and arrangement of a lattice. Furthermore, the lace knitted fabric 20 includes a pattern portion in which the amount of yarns arranged per unit area is dense and a base portion in which the amount of yarns arranged per unit area is sparse, and the shape and arrangement of the pattern portions and the base portion Form a pattern. Such a lace knitted fabric 20 with a pattern is used, for example, for manufacturing knitted products such as women's undergarments. As shown in FIG. 1, the lace knitted fabric 20 includes: a chain knitting yarn 21 that forms a Raschel warp knitting structure 19 having a plurality of loop portions 24 and 25; a first insertion yarn 23 that has The elastic stretchability is used for knitting into the chain knitting structure 19 in the weft direction C to give the chain knitting structure 19 with the stretchability in the weft direction C; and the second insertion yarn 22, which is elastically stretchable, and Each of the second loop portions 25 of the chain knitting yarn 21 forming one chain knitting structure 19 and the chain knitting yarn 21 formed of the chain knitting structure 19 adjacent to the warp loop direction W are attached to each The chain knitted structure 19 provides stretchability in the warp direction W. The chain knitting yarn 21 is sometimes referred to as a warp yarn or a base knitting yarn. The first insertion yarn 23 is also referred to as a stretch yarn, and the second insertion yarn 22 is also referred to as a weft yarn. Furthermore, in the lace knitted fabric 20, the plurality of first contact portions 50 of the chain knitting yarn 21 and the first insertion yarn 23 are adhered by using the thermal fusion properties of each other. The chain knitting yarn 21 and the first insertion yarn 23 are adhered to almost all of the first contact portions 50. In addition, on the lace knitted fabric 20, the plurality of second contact portions 55 of the chain knitting yarn 21 and the second insertion yarn 22 are adhered to each other by thermal fusion. The chain knitting yarn 21 and substantially all of the second contact portions 55 of the second insertion yarn 22 are continued. As shown in FIG. 2, the chain knitting yarn 21 is subjected to chain knitting to form a first loop portion 24 and a second loop portion 25. The first ring-shaped portions 24 and the second ring-shaped portions 25 are alternately connected and arranged in a weft loop direction C to form a plurality of segments. Here, the first loop portion 24 may be referred to as a knitting loop, and the second loop portion 25 may be referred to as a sinker loop. The first loop portion 24 and the second loop portion 25 are alternately connected and extend in the weft loop direction C to form a warp loop. The warp loops are aligned in the warp loop direction W to form a plurality of them, and the chain knitting structure, in other words, the twist structure is formed by connecting the warp loops and the like. Furthermore, the chain knitting yarn 21 is appropriately horizontally loop-stitched and the chain knitting adjacent to the warp direction W is connected to form a chain knitting structure having a function of preventing loose yarn. A portion of the chain-shaped knitting yarn 21 that is laterally stitched is referred to as a needle-off preventing portion 42. Each of the first annular portions 24 is formed in a substantially U-shape, and is arranged in a line along a predetermined weft direction C and a warp direction W orthogonal to the weft direction C. In addition, each of the first annular portions 24 is opened at a weft direction front stage C1 which is one side of the weft direction C. The first annular portions 24 are aligned in a row in the warp direction W to form a weft loop, and the first annular portions 24 are aligned in a row in the weft loop direction C to form a warp loop. The second annular portion 25 connects the first annular portions 24 arranged in the weft loop direction C. For example, look at one second ring portion 25. One end portion of the second ring-shaped portion 25 to be observed is connected to the end portion of the first ring-shaped portion 24 which is the same segment as the second ring-shaped portion 25. The second annular portion 25 is inserted from one side to the other side of the first annular portion 24 of the first section C1 in the weft direction of the second annular portion 25 as it goes from one end to the other. The rear section C2 of the loop direction extends, and the first ring section 24, which is the same section as the second ring section 25, is inserted from the other side to the side and extends toward the rear section C2 of the weft direction, and is connected to the second ring section. The ends of the first ring-shaped portion 24 of the rear section C2 in the weft direction of 25 are connected to each other. In this manner, the ring portions 24 and 25 are connected in a chain shape to form a warp loop extending in the weft loop direction C. Each of the insertion yarns such as the second insertion yarn 22 and the first insertion yarn 23 is knitted into the warp loop by being sandwiched between the first loop portion 24 and the second loop portion 25. In this embodiment, the longitudinal direction of the C-type knitted fabric in the weft direction refers to the lace knitting direction. The warp direction W refers to the transverse direction of the knitted fabric, and refers to a direction intersecting with the lace knitting direction. The first ring-shaped portion 24 is arranged in plural along the weft direction C and the warp direction W. Further, the plurality of first annular portions 24 arranged along the weft direction C and the warp direction W are arranged substantially in contact with a predetermined virtual plane. In this case, the knitting yarns knitting into the chain knitting structure such as the second insertion yarn 22 and the first insertion yarn 23 are arranged on one side with respect to the virtual plane. The direction in which the respective insertion yarns 22 and 23 are arranged with respect to an imaginary plane extending along the first annular portion 24 is referred to as a positive direction Z1, and the direction in which the above-mentioned virtual plane is arranged with respect to the insertion yarns 22 and 23 is referred to as a reverse direction Z2. In FIG. 1 and FIG. 2, a direction away from the paper surface in a thickness direction Z perpendicular to the paper surface toward the front is referred to as a positive direction Z1, and a direction away from the paper surface in a direction perpendicular to the paper surface is directed to the reverse direction Z2. On the surface of the lace knitted fabric 20 in the positive direction Z1, the first loop portion 24 is hidden by the knitting yarns such as the second insertion yarn 22 and the first insertion yarn 23. Therefore, the pattern of the lace knitted fabric 20 in the positive direction Z1 and the surface of the lace knitted fabric 20 in the opposite direction Z2 are clearer than the surface in the opposite direction Z2. For example, the second annular portion 25 is inserted through the first annular portion 24 of the front section C1 in the weft direction of the second annular portion 25 in the positive direction Z1, and is inserted through the second annular portion 25 in the reverse direction Z2. The weft loop direction is the same as the first loop portion 24 in the same section, and is connected to the first loop portion 24 in the weft loop rear section C2. The second insertion yarn 22 is a yarn for forming a lace pattern in the chain knitting group. The second insertion yarn 22 is knitted into the warp loops adjacent to the warp direction W by knitting, and the two warp loops adjacent to the warp direction W are connected. As shown in FIG. 1, the second insertion yarn 22 includes a transverse loop stitch portion extending from one warp loop and another warp loop adjacent to the warp direction W, and a second insertion yarn knitted to the warp loop. section. In the space surrounded by the warp loops connecting the two horizontal loop seam portions arranged in the weft loop direction C and the horizontal loop seam portion, a through hole is formed that penetrates in the thickness direction of the knitted fabric. The shape and arrangement of the through-holes can be adjusted by selectively arranging the lateral loop stitch portions of the second insertion yarn 22. Thereby, a lace pattern expressed according to the arrangement and shape of the through holes can be formed in the lace knitted fabric 20. Here, the through-holes surrounded by the transverse loop seam portion and the warp loop may be filled with the pattern yarn described below to form a pattern.

The second insertion yarn 22 extends in a region in the positive direction Z1 than the first annular portion 24. The second insertion yarn 22 is inserted between the first ring-shaped portion 24 and the second ring-shaped portion 25 set in advance and extends in the warp direction W. In the present embodiment, a plurality of second insertion yarns 22 are knitted in the chain knitting structure, and each of the second insertion yarns 22 is aligned in the warp direction W and knitted. The position of knitting the second insertion yarns 22 is appropriately selected according to the lace pattern formed on the lace knitted fabric 20.

The first insertion yarn 23 is realized by a yarn having a higher melting temperature than the chain knitting yarn 21 and the second insertion yarn 22. In this embodiment, a yarn partially melted in a heating state in a heating step performed after the lace knitted fabric is knitted is used. The first insertion yarn 23 is used to provide stretchability to the lace knitted fabric 20, and is also used to prevent loose yarns formed by the chain knitting yarn 21 and the second insertion yarn 22. In this embodiment, the first insertion yarn 23 is realized by a non-covered yarn, that is, a bare yarn not covered by the covered yarn, a so-called bare yarn, and a melting temperature of about 200 ° C or higher and 250 Polyurethane elastic yarn below ℃. The first insertion yarn 23 is knitted into a chain knitted structure in a state of being stretched relative to the natural state. The polyurethane core yarn used in the chain knitting yarn 21 and the second insertion yarn 22 has a lower melting point than the polyurethane yarn used in the first insertion yarn 23, so they are melted, 1 The insertion yarn 23 is fused, thereby preventing loose yarn.

The first insertion yarn 23 extends along the warp loop, and is knitted into all loop portions constituting the warp loop. Therefore, in the chain knitting structure, the first insert yarn 23 is knitted into both the sparse base portion and the pattern portion where the amount of yarn per unit area is denser than the base portion. Furthermore, in this embodiment, the lace knitted fabric 20 includes a plurality of first insertion yarns 23, and each of the first insertion yarns 23 is knitted into each warp loop. In this way, the first insertion yarn 23 is knitted and knitted over the entire area of the chain knitting structure. The first insertion yarn 23 extends in a region in the positive direction Z1 than the first annular portion 24 and extends in a region in the opposite direction Z2 than the second annular portion 25. The first insertion yarn 23 travels along the corresponding warp loop in the weft loop direction C, and then travels in a zigzag manner. For example, if the first insertion yarn 23 passes between the first ring-shaped portion 24 and the second ring-shaped portion 25 viewed from one side W1 of the warp direction to the other side W2 of the warp direction, it will One side W2 passes between the first ring-shaped portion 24 and the second ring-shaped portion 25 of the weft ring-direction rear section C2 of the first ring-shaped portion 24 to be watched toward the warp-ring side W1. Each time such a first insertion yarn 23 is knitted on a weft loop, it can also be realized by a structure different from the above-mentioned structure. Immediately after weaving, the first insertion yarn 23 extends in a region in the positive direction Z1 than the first loop portion 24, and extends in a region of the opposite direction Z2 of the lace knit 20 more than the second insertion yarn 22. Therefore, in the area between the first looped portion 24 and the second looped portion 25 where the first and second insertion yarns 23 and 22 pass through, the first looped portion 23 passes through the first looped portion 24 and The second is inserted between the yarns 22. The second insertion yarn 22 is inserted between the first insertion yarn 23 and the second loop portion 25. In this case, by stretching the chain knitting yarn 21 in the weft direction C, the radius of curvature of the first loop portion 24 and the second loop portion 25 becomes smaller, so that the first insertion yarn 23 is disposed at the second insertion. The yarn 22 is in contact with the first annular portion 24 and in contact with the second insertion yarn 22 and the first annular portion 24. In this embodiment, the first insertion yarn 23 and the second insertion yarn 22 are inserted through the same area between the first loop portion 24 and the second loop portion 25, and the first insertion yarn 23 and the second insertion yarn 22 crosses each other and passes through the first annular portion 24 and the second annular portion 25. Specifically, the first insertion yarn 23 is connected from the side where the first ring-shaped portion 24 being watched to the second ring-shaped portion 25 of the front section C1 in the weft direction through the first ring-shaped portion 24 and the weft direction. Paragraph 2 of the second ring portion 25. FIG. 3 is a front view showing a part of the chain knitting yarn 21 before weaving, and FIG. 4 is a front view showing a part of the chain knitting yarn 21 that is woven into a lace knitted fabric 20. The chain knitting yarn 21 has a shape shown in FIGS. 1 and 2 in a state of being knitted into a lace knitted fabric 20. However, in FIG. 4, it is shown in a linearly extended state for easy understanding. The chain knitting yarn 21 is a yarn obtained by spirally winding a covering yarn 31 around an elastic core yarn 30. The core yarn 30 is a single-fiber yarn (filament yarn) containing a thermoplastic synthetic resin, and includes, for example, a polyester-based polyurethane. The covering yarn 31 is a long-fiber yarn (filament yarn) composed of a plurality of long fibers including a synthetic resin, and includes, for example, polyamide (trade name: nylon). In the state before the knitting yarn 21, as shown in FIG. 3, the chain knitting yarn 21 is covered with the covering yarn 31 so that the covering yarns 31 are in contact with each other and the core yarn 30 is not exposed. The chain knitting yarn 21 is knitted in a stretched state as shown in FIG. 4 by utilizing the stretchability of the core yarn 30. In the stretched state, the chain knitting yarn 21 is in a state where a spiral gap is formed between the covering yarns 31 and the core yarn 30 is exposed from the gap. The second insertion yarn 22 is a core yarn including a single-fiber yarn made of a hot-melt synthetic resin, and a long-fiber yarn (filament yarn) composed of a plurality of long fibers including a synthetic resin, such as polyamide (trademark) Name: Nylon), rayon, polyester, etc. The first insertion yarn 23 is a yarn also called a spandex elastic fiber, and is a long-fiber yarn (filament yarn) containing a stretchable material, for example, a polyester-based polyurethane. The core yarn 30 and the first insertion yarn 23 of the chain knitting yarn 21 both contain polyester polyurethane, but different types of polyester polyurethane, and the melting of the core yarn 30 The temperature is lower than the melting temperature (about 200 to 250 ° C.) of the first insertion yarn 23. The melting temperature of the core yarn 30 is about 140 to 190 ° C., which is lower than the melting temperatures of the covering yarn 31, the second insertion yarn 22, and the first insertion yarn 23 and has thermoplasticity. As such, the chain knitting yarn 21 is a yarn including a core yarn 30 containing a material having a lower melting temperature. The core yarn of the second insertion yarn 22 may have the same melting temperature as that of the core yarn 30 of the chain knitting yarn 21. FIG. 5 is a flowchart showing an example of the manufacturing steps of the lace knitted fabric 20 according to this embodiment. First, in step a0, the selection of the yarns used for knitting the lace knitted fabric 20, the decision of the pattern to be formed on the lace knitted fabric 20, and the design of the knitted fabric used to form the desired knitted structure are completed. When the preparation for knitting is completed, the process proceeds to step a1 to start manufacturing the lace knitted fabric 20. In step a1, which is a knitting step, a knitting machine as a Raschel warp knitting machine is used to knit into a precursor knitted fabric of a lace knitted fabric 20 precursor. The knitting machine knits each of the yarns 21, 22, 23 such as the first insertion yarn 23 and the second insertion yarn 22 into the chain knitting yarn 21 in accordance with the knitting sequence designed in step a0, and knits the lace knitting shown in FIG. The fabric 20 has the same woven structure precursor knitted fabric. In the precursor knitted fabric, the chain knitting yarn 21 and the first insertion yarn 23 have stretchability. The knitting machine performs a knitting operation in a state where the stretchable yarn is stretched. The precursor knitted fabric shrinks after weaving due to the restoring force of the yarn knitted in the stretched state, and if the stretchability is maintained to the lace knitted fabric 20, the lace knitted fabric 20 becomes a stretchable elastic lace knitted fabric. When the knitting of the precursor knitted fabric is completed in this manner, the process proceeds to step a2. In step a2 as the dyeing step, the precursor knitted fabric knitted in step a1 is dyed. When the dyeing is completed, the process moves to step a3. In step a3, the dyed precursor knitted fabric is heated to a temperature above the melting temperature of the core yarn 30 of the chain knitting yarn 21 and not reaching the melting temperature of the yarns 22, 23, 31 other than the core yarn 30. When the precursor knitted fabric is heated in step a3, the precursor knitted fabric is stretched, and the chain knitting yarn 21 is heated as shown in FIG. 4. Thereby, the core yarn 30 of the chain knitting yarn 21 is heated and melted in a partially exposed state. The core yarn of the second insertion yarn 22 may have the same melting temperature as that of the core yarn 30 of the chain knitting yarn 21. Therefore, in the first contact portion 50 where the first insertion yarn 23 of the first contact portion 50 of the chain knitting yarn 21 and the first insertion yarn 23 contacts the exposed portion of the core yarn 30, the chain knitting yarn 21 and the first contact portion 50 The yarn 23 is inserted. In addition, in the second contact portions 55 where the exposed portions of the core yarns 30 in the second contact portions 55 of the chain knitted yarns 21 contact each other, the chain knitted yarns 21 are adhered to each other. Such contact portions 50 and 55 have the characteristics of the molten core yarn passing through the covered yarn and the most central side of the bent portion, and are the locations with the highest probability of attachment. However, there are cases where the contact portions 50 and 55 are The molten core yarn is also exposed at other locations, and if it is set in contact with other fibers, a bonding portion is formed. Although the core yarn 30 of the chain knitting yarn 21 and the first insertion yarn 23 are different in type, each of them contains a polyester-based polyurethane, and therefore, the core yarn 30 is melted and easily heat-fused and bonded. In addition, the covering yarn 31 of the chain knitting yarn 21 includes polyamide, which is difficult to adhere to the core yarn 30, and the setting temperature and the setting time are adjusted by most of the first contact portion 50 as described above. In the case of melting the core yarn and the polyurethane yarn for expansion and contraction, the core yarn 30 and the first insertion yarn 23 of the chain knitting yarn 21 can be adhered to the first contact portion 50 at about 60 to 90%. Rate goes on. Furthermore, at the second contact portion 55 of the chain knitting yarn 21 and the second insertion yarn 22, the exposed portions of the core yarn 30 are in contact with each other, and are adhered at a bonding rate of about 50 to 80%. The precursor knitted fabric is heated in such a manner that a portion of the first contact portion 50 of the chain knitting yarn 21 and the first insertion yarn 23 is adhered, and a portion of the second contact portion 55 of the chain knitting yarn 21 is adhered to each other to form The lace knitted fabric 20 proceeds to step a4. In step a4, the formed lace knitted fabric 20 is cut (it remains as it is in the case of a wide width), and in step a5, the manufacturing operation of the lace knitted fabric 20 is finished. The core knitting yarn 30 of the chain knitting yarn 21 is melted by heating the precursor knitted fabric in step a2, so that the stretchability is impaired, but the first insertion yarn 23 is heated only to a temperature not reaching the melting temperature, so it can be maintained. Scalability. Therefore, the lace knitted fabric 20 has stretchability. According to the lace knitted fabric 20 of this embodiment as described above, the first insert yarn 23 having elasticity is knitted into the chain knitted structure 19 and stretchability is added to the chain knitted structure, so that elastic lace can be realized. Braid. Further, a part of the first contact portion 50 of the chain knitting yarn 21 and the first insertion yarn 23 is continued, and the part of the chain knitting yarn 21 or a portion of the second contact portion 55 of the chain knitting yarn 21 and the second insertion yarn 22 is continued. Followed each other. Thereby, the positional shift of the chain knitting yarn 21 and the first insertion yarn 23 and the positional shift of the chain knitting yarns 21 or between the chain knitting yarn 21 and the second insertion yarn 22 can be prevented, thereby preventing the Deformation. For example, even if external forces caused by the manufacturing process such as sewing or cutting of lace knitted fabrics, or external forces caused by use conditions such as wearing or washing, can prevent the deformation of the lattice and maintain the shape of the lattice, thereby obtaining good appearance It is a lace knitted fabric, and can maintain the excellent appearance for a long time. The chain knitting yarn 21, the first inserting yarn 23, and the second inserting yarn 22 are woven into the whole of the lace knitted fabric 20 by thermal fusion, so that the chain knitting yarn 21 and the first inserting yarn 23 are bonded, and the chain is knitted. The knitting yarn 21 and the second inserting yarn 22 are followed, and therefore, different yarn structures are not used locally, so that uniformity is obtained visually and tactually without impairing the appearance and texture. Further, the chain knitting yarn 21 formed by covering the core yarn 30 with the covering yarn 31 is extended, and the exposed portion of the core yarn 30 is continued. Therefore, the surface of the covering yarn 31 is not covered by the melt of the core yarn 30. In some cases, when the lace knitted fabric 20 and the laced product manufactured using the same are brought into contact with the skin, the melt of the core yarn 30 is not in contact with the skin, and the covering yarn 31 is in contact with the skin. Since the covering yarn 31 is an assembly of a plurality of single fibers, a soft and soft feel can be obtained, and a good texture can be maintained. The texture here refers to the feel, and the good texture refers to the feel that is soft and soft. In addition, since the first contact portion 50 of the chain knitting yarn 21 and the first insertion yarn 23 and the second contact portion 5 of the chain knitting yarn 21 and the second insertion yarn 22 are almost all adhered, it is possible to obtain good appearance and texture. The excellent stretchable lace knit prevents the positions of the chain knitting yarn 21 and the first inserting yarn 23 which are easy to affect the deformation of the lattice in either of the weft direction C and the warp direction W. Offset and positional shift of the chain knitting yarn 21 and the second insertion yarn 22 will not impair the stretchability and softness, and it is not easy to produce loose yarns under high tensile strength. The heating condition in the step a3 as the heat setting step is set to a heating condition in which the core yarn 30 of the chain knitting yarn 21 is melted and changes in characteristics including the brittleness of yarns other than the core yarn 30 are prevented. The heating condition in the heating step is preferably set to a heating condition in which the core yarn 30 is heated to a temperature that can maintain the shape of the yarn. Thereby, the molten material of the core yarn 30 can be prevented from appearing on the surface of the knitted fabric and is not easy to contact the skin. Regarding heating conditions, for example, heating temperature and heating time are set. The minimum melting temperature at which the core yarn 30 is melted is set to B1, and the time until softening when heated at the minimum melting temperature is set to D1. In addition, the minimum characteristic change temperature of the characteristic change of yarns other than the core yarn 30 is set to B2, and the time until the characteristic changes when heated at the minimum characteristic change temperature is set to D2. In this case, in the present embodiment, if the heating temperature in the heating step is set to B3 and the heating time is set to D3, then B1 <B3 <B2, D1 <D3 <D2. Furthermore, by setting B3 as close to B1 as possible and D3 as close to D1 as possible, it is possible to easily maintain the form of the core yarn 30 as the yarn. In the present embodiment, as the core yarn 30 of the chain knitting yarn 21, a polyester-based thermoplastic polyurethane of 10 denier or more and 280 denier or less, preferably 10 denier or more and 70 denier or less is used. Ester elastic yarn. The heat treatment is performed at a heating temperature of 170 ° C. to 195 ° C. and a heating time of 30 sec to 90 sec. Thereby, the core yarn 30 can be melted, and the characteristics of the remaining yarn can be prevented from changing. The fineness of the first insertion yarn 22 is selected, for example, from 40 denier to 420 denier. The core yarn of the second insertion yarn 21 may be the same as the core yarn 30 of the chain knitting yarn 21. For example, when the heating time is fixed, if the heating temperature is set to less than 170 ° C., the adhesion force based on the melted core yarn 30 becomes small. When the heating temperature exceeds 195 ° C, it is difficult to maintain the form of the core yarn 30 as a yarn, and the characteristics of yarns other than the core yarn 30 may change. On the other hand, in this embodiment, the above-mentioned problem can be prevented by setting the heating temperature to 170 ° C or higher and 195 ° C or lower as described above. The thinner the core yarn 30 is, the closer the bonding portion is to the point of contact and becomes smaller, so that the texture is better, and the thicker the core yarn 30 is, the larger the bonding portion is to damage the texture. In order to thicken the core yarn 30 and maintain a good texture, it is considered to thicken the covering yarn 31, but the chain knitting yarn 21 will become thick, thereby impairing the permeability of the lace knitted fabric. The stronger the core yarn 30, the smaller the bonding strength, and the thicker the core yarn 30, the larger the bonding strength. In addition, the combination of the core yarn 30 and the covering yarn can provide a feeling of clothing according to the application. Furthermore, by setting each yarn itself to be thick or combining them, it is also possible to improve the breaking strength. Therefore, when the core yarn 30 is a thinner yarn of less than 10 deniers, there is a problem that the strength becomes too small, and when the core yarn 30 is a thicker yarn of more than 140 deniers, it is harmful. The problem of texture. By setting the core yarn 30 to 10 denier or more and 140 denier or less, a good texture with no shortage of strength can be obtained. From the same viewpoint, it is preferable to set the core yarn 30 to 10 denier or more and 50 denier or less. Furthermore, the lace knitted fabric 20 has the effect of preventing the development of loose yarns by adhering the first and second contact portions 50 and 55 as described above. Therefore, for example, the lace knitted fabric 20 can be cut in an arbitrary shape by a method called pattern cutting, free cutting, or the like. Therefore, it has high stretchability and morphological stability in either of the warp direction W and the weft direction C, and can be three-dimensionally formed by molding or the like. In the cutting step a4, the lace knitted fabric 20 manufactured in this way is formed into a desired three-dimensional shape for women's underwear, for example, is molded at 180 ° C, and cut into individual processed products. The process ends in step a5. Manufacturing operations. The lace knitted fabric 20 of the present invention has the first and second contact portions 50, 55 connected as described above, and can prevent the loosening of the yarn. Therefore, the anti-off needle portion 42 or the anti-off needle portion 42 may be formed rather than Less of the composition. If it is set as the structure which does not have the needle-off prevention part 42 or has few needle-off prevention parts 42, the crossing of the chain knitting yarn 21 may not be performed or reduced, and the aesthetics and quality may be improved. The above-mentioned embodiments are merely examples of the present invention, and the configuration can be changed. For example, the material and the like of each of the yarns 21 to 23 can be appropriately changed.

19‧‧‧ Chain Knitting Organization

20‧‧‧ lace knitted fabric

21‧‧‧ Chain Knitting Yarn

22‧‧‧ 2nd insert yarn

23‧‧‧The first insert yarn

24‧‧‧The first ring

25‧‧‧The second ring

30‧‧‧ core yarn

31‧‧‧ Covered Yarn

42‧‧‧Anti-off needle part

50‧‧‧ the first contact

55‧‧‧The second contact

C‧‧‧ Orientation

C1‧‧‧ Forward

C2‧‧‧ rear section

W‧‧‧ meridian direction

W1‧‧‧ side of warp direction

W2‧‧‧ the other side of the meridian

Z‧‧‧ thickness direction

Z1‧‧‧ positive direction

Z2‧‧‧ reverse direction

FIG. 1 is a knitting structure diagram showing a portion of the lace knitted fabric 20 as an embodiment of the present invention. FIG. 2 is a diagram showing the knitting structure of the lace knitted fabric 20 by omitting yarns other than the chain knitting yarn 21 and the first and second insertion yarns 22 and 23. Fig. 3 is a front view showing a part of the chain knitting yarn 21 before weaving. FIG. 4 is a front view showing a part of the chain knitting yarn 21 woven into the lace knitted fabric 20. FIG. 5 is a flowchart showing the manufacturing steps of the lace knitted fabric 20 according to this embodiment.

Claims (4)

A lace knitted fabric characterized by comprising: a chain knitting yarn, which constitutes a chain knitting structure in which a plurality of loop portions are connected in a weft direction and a plurality of rows are formed in a warp direction; a first insertion yarn, which is elastic For the stretchable stretcher, insert each loop portion of the chain knitting yarn in the weft direction and knit into the chain knitting structure to give the chain knitting structure stretchability in the weft direction; and the second insertion yarn, It is an elastically stretchable person, and it is wound around each loop portion of the chain knitting yarn constituting a chain knitting structure, and the chain knitting adjacent to the one chain knitting structure in the warp direction Each loop portion of the chain knitting yarn of the organization gives each chain knitting structure stretchability in the warp direction; the first insertion yarn is at a position in contact with each loop portion of the chain knitting yarn, and the chain type Knitting yarn Next, the second insertion yarn is in contact with each loop portion of the chain knitting yarn. Next to the chain knitting yarn, the chain knitting yarn and the second insertion yarn include a core yarn and a spiral shape. Composite yarn wrapped to core yarn Each core yarn of the chain knitting yarn and the second insertion yarn includes a heat-fusible synthetic resin fiber having a melting temperature lower than that of the first insertion yarn, and the first insertion yarn is a bare yarn not covered by the covering yarn. For example, the lace knitted fabric of claim 1, wherein the core yarn of the chain knitting yarn and the core yarn of the second insertion yarn include single-fiber yarn made of hot-melt synthetic resin, the covering yarn of the chain knitting yarn and the second insertion yarn The covered yarn is a long-fiber yarn made of a heat-fusible synthetic resin having a melting temperature higher than that of each core yarn. For example, the lace knitted fabric of claim 2, wherein the first inserted yarn is an elastic yarn having a melting temperature higher than that of the core yarn of the chain knitting yarn and having a fineness of 40 denier or more and 420 denier or less . The lace knitted fabric according to any one of claims 1 to 3, wherein the chain knitting yarn and the second insertion yarn are elastic yarns having a fineness of 10 denier or more and 280 denier or less.