JP2023019144A - knitted lace - Google Patents

Abstract

To provide a knitted lace that easily provides transparency specific to knitted lace and allows material cost to be reduced and fray to be prevented.SOLUTION: A knitted lace has a constitution including a chain stitch yarn 21, which constitutes a chain stitch texture having a plurality of loop-like portions 25a, 25b including a needle loop 25a and a sinker loop 25b, a first insertion yarn 22, which is formed of at least one type selected from elastic polyamide that resiliently stretches, polyester, semisynthetic fiber, natural fiber and polyurethane and is woven into the chain stitch texture and crosses between adjacent wales, and provides elasticity in wale direction W, and a second insertion yarn 23 having elasticity to resiliently stretch. The second insertion yarn 23 is woven into the chain stitch texture and provides elasticity in a course direction C. When the sinker loop 25b is located on a surface side Z1, the second insertion yarn 23 is located on a rear side Z2 of the sinker loop 25b and the surface side Z1 of the first insertion yarn 22.SELECTED DRAWING: Figure 1

Description

The present invention relates to knitted lace.

A prior art knitted lace is disclosed, for example, in US Pat. In this prior art, a knitted lace fabric having a chain stitch structure in which a plurality of loop-like portions are formed by chain stitch yarns, wherein the chain stitch structure includes a heat bonding yarn having a melting temperature lower than that of the chain stitch yarn. It has a base portion where the yarn is sparsely woven and a portion where the thermal adhesive yarn and the insertion yarn for forming the pattern are woven into the chain stitch structure, and the yarn is dense. In the chain stitch part, the first loop-shaped part and the second loop-shaped part are alternately connected and arranged in a plurality of stages in a predetermined course direction, and the second loop-shaped part of interest is the second loop The first loop-shaped portion of the first stage in the course direction of the shaped portion extends toward the rear stage in the course direction, and the first loop-shaped portion of the second loop-shaped portion at the same stage in the course direction is inserted to the rear stage in the course direction. In a portion formed in a chain by connecting to the first loop-shaped portion and extending in the course direction, and where the thermal bonding yarn and the insertion yarn are woven together, it is inserted between the first loop-shaped portion and the second loop-shaped portion A knitted lace fabric is proposed in which a yarn is inserted and a heat bonding yarn is inserted between the insertion yarn and the first loop-shaped portion.

In the prior art disclosed in Patent Document 1 above, a handle portion with a dense amount of yarn per unit area and a base portion with a sparse amount of yarn per unit area are provided. are combined to form a knitted lace fabric having a pattern by giving a contrast to the knitted fabric due to the difference in density of the threads. In addition, by heating the knitted lace fabric to a temperature lower than the melting temperature of the chain stitch yarn and higher than or equal to the melting temperature of the heat bonding yarn, part of the heat bonding yarn is partially melted, and part of the melted portion attaches to the chain stitch yarn and the insertion yarn. By solidifying in this state, in the knitted lace manufactured using the knitted lace fabric, the chain stitch yarn and the insertion yarn in contact with the heat-bonded yarn are prevented from separating from the heat-bonded yarn, and each contact with the heat-bonded yarn is prevented. The threads are adhered together by thermal bond threads. This maintains the connected state of each thread and prevents the thread from fraying.

Japanese Patent No. 3966423

In the prior art described in Patent Document 1, since a composite yarn is used for the chain stitch yarn that constitutes the chain stitch structure of the knitted lace, it is difficult to obtain the desired sheerness, and the amount of chain stitch yarn used is Also, there is a problem that the material cost becomes expensive.

SUMMARY OF THE INVENTION An object of the present invention is to provide a knitted lace that can easily obtain a transparent feeling peculiar to knitted lace, can reduce material cost, and prevents fraying.

The present invention provides a chain stitch yarn that constitutes a chain stitch structure having a plurality of loop-shaped portions including needle loops and sinker loops;
Made of at least one selected from polyamide, polyester, semi-synthetic fiber, natural fiber, and polyurethane, which has elastic elasticity, it is woven into the chain stitch structure and crosses between adjacent wales. , a first insertion yarn that provides elasticity in the wale direction;
a second insertion yarn having elasticity that elastically expands and contracts, the second insertion yarn being woven into the chain stitch structure to impart elasticity in the course direction;
The knitted lace is characterized in that, when the sinker loop is on the front side, the second insertion yarn is positioned on the back side of the sinker loop and on the front side of the first insertion yarn.

Further, the second insertion thread of the present invention is characterized by being made of an elastic thread having adhesiveness.

Further, the present invention is made of a thermoplastic resin having stretchability that elastically expands and contracts, is positioned between the needle loop and the first insertion yarn, is woven into the chain stitch structure, and extends in the course direction. It is characterized by including a third insertion thread that provides elasticity.

Further, the present invention is characterized in that the third insertion thread has adhesiveness.

Further, the present invention is characterized in that the first insertion thread is a composite thread in which two or more types of threads are combined, and at least one type of thread is composed of a composite thread having adhesive properties.

Further, the present invention is characterized by including a fourth insertion yarn positioned between the needle loop and the first insertion yarn and knitted into the chain stitch structure.

Further, the present invention is characterized in that the fourth insertion yarn is adhered to the third insertion yarn to impart stretchability in the course direction.

Further, the present invention is characterized in that the fourth insertion thread has adhesiveness.

Further, the present invention is located between the needle loop and the first insertion yarn, is woven into the chain stitch structure, and has a warm feeling, a cold feeling, moisturizing, antistatic, antibacterial, deodorizing, and biodegradable functions. , a fourth insertion thread having at least one function.

Further, the present invention is characterized in that the chain stitch yarn repeats lateral movement to constitute a lateral movement structure.

According to the present invention, the first insertion yarn and the second insertion yarn are knitted into the chain stitch structure composed of the chain stitch yarns, so that a knitted lace having stretchability in the wale direction and the course direction can be obtained. This knitted lace uses a long fiber yarn (filament yarn) made of a thermoplastic resin as a chain knitting yarn and does not use a composite yarn, so that the transparent feeling peculiar to knitted lace can be easily obtained, and the material cost can be reduced. can.

In addition, according to the present invention, in order to suppress a decrease in adhesive strength due to the use of a long fiber yarn for the chain knitting yarn, the knitted lace has the second insertion yarn on the back side of the sinker loop and the first insertion yarn. The first and second insertion threads pass through the front side, which provides high adhesion strength between the threads, prevents the threads from fraying at the cut ends, and even after repeated wearing and washing, the first and second insertion threads are removed from the chain stitch structure. It is possible to provide a knitted lace which is less likely to fray, less likely to cause fraying of threads at cut edges, is inexpensive in material cost, and has excellent beauty and texture.

In addition, even when the setting temperature is low in the heat treatment process of the knitted lace, a material with a low melting temperature is used for the second insertion yarn, and the first insertion yarn elastically expands and contracts Polyamide, polyester, semi-synthetic fiber, Since it is made of at least one selected from natural fibers and polyurethane, it is possible to bond the second inset yarn, the chain stitch yarn and the first inset yarn, thereby bonding the chain stitch yarn and the first inset yarn. It has high strength, is resistant to fraying due to the action of external forces such as wearing and washing, and can obtain high shape stability.

Further, according to the present invention, the knitted lace is made of a thermoplastic resin that elastically expands and contracts, is located between the needle loop and the first insertion yarn, and is knitted into the chain stitch structure to form a course. Since the third insertion thread that imparts stretchability in the direction is included, the second insertion thread and the third insertion thread sandwiched between the needle loop and the sinker loop are bonded with high adhesive strength at their mutual contact points, and are stretched in the direction of the cut. Regardless, it is possible to suppress thread coming off.

Further, according to the present invention, the first insertion yarn is a composite yarn in which two or more kinds of yarns are composited, and at least one kind of yarn is composed of a composite yarn having adhesiveness, so that at least one kind of yarn is used during heat setting. melts and adheres to the chain stitch yarn, the second insertion yarn and the third insertion yarn, and high adhesion strength can be obtained. As a result, it is possible to suppress thread coming off regardless of the direction of the cut end.

In addition, according to the present invention, it has elasticity to elastically expand and contract, is located between the needle loop and the first insertion yarn, is woven into the chain stitch structure and is adhered to the second insertion yarn, Since the fourth insertion yarn that imparts stretchability in the course direction is included, the sinker loop of the chain stitch yarn, the first insertion yarn, the second insertion yarn, the third insertion yarn, and the fourth insertion yarn are bonded with high adhesion strength, Thread pull-out can be suppressed regardless of the direction of the cut end.

Further, according to the present invention, it is located between the needle loop and the first insertion yarn, is woven into the chain stitch structure, and has the following functions: Since the fourth insertion yarn having at least one function is included, it is possible to provide a knitted lace to which the function is given according to the type of the fourth insertion yarn to the knitted lace in which the yarn at the cut is less likely to fray, Even when this knitted lace is used for women's underwear, for example, it is possible to realize a product that exhibits a high thread-loosening suppressing effect and various functions using functional threads.

1 is a knitting organization diagram schematically showing the configuration of a knitted lace 1 according to an embodiment of the present invention; FIG. Fig. 2 is a knitting structure diagram in which a first insertion yarn 22 is excluded from the structure of the knitted lace 1 shown in Fig. 1; Fig. 2 is a knitting organization chart over two wales of the knitted lace 1 shown in Fig. 1;

EMBODIMENT OF THE INVENTION Hereinafter, with reference to an accompanying drawing, embodiment of the knitted lace of this invention is described.

FIG. 1 is a knitting organization diagram schematically showing the configuration of a knitted lace 1 according to one embodiment of the present invention. FIG. 2 is a knitting structure diagram in which the structure of the knitted lace 1 shown in FIG. 1 is reduced and the first insertion yarn 22 is excluded. FIG. 3 is a knitting organization chart covering two wales of the knitted lace 1 shown in FIG. It should be noted that the knitting organization charts shown in FIGS. 1 to 3 are schematically shown to facilitate understanding of the knitted lace 1, and the actual knitted lace 1 includes the first loop-shaped portion 25a and the second loop portion 25a. The curvature of the loop-shaped portion 25b is small, and the first to fourth insertion threads 22, 23, 24, 28 are extremely close or in contact with each other. Further, in the present embodiment, the knitted fabric knitted by the chain stitch yarn 21 and the first to fourth insertion yarns 22 to 24 and 28 is referred to as a lace knitted fabric (or precursor knitted fabric), and the lace knitted fabric is referred to as a knitted lace fabric. The heat-set (heated) one is called a knitted lace 1 .

The knitted lace 1 of the present embodiment is a chain stitch yarn 21 that constitutes a chain stitch structure having a plurality of loop-shaped portions including needle loops 25a and sinker loops 25b, and is a run that is a transverse structure that is repeatedly swung sideways. The chain knitting yarn 21 forming the stop structure 42 and at least one selected from polyamide, polyester, semi-synthetic fiber, natural fiber, and polyurethane having elastic elasticity, and are knitted into a chain stitch structure. A first insertion yarn 22 that is inserted and crosses between adjacent wales to give elasticity in the wale direction W, and a second insertion yarn 23 that elastically expands and contracts. and a second insertion yarn 23 that is woven to provide stretchability in the course direction C, wherein the second insertion yarn 23 is located on the back side Z2 relative to the sinker loop 25b when the sinker loop 25b is on the front side Z1, and The first insertion thread 22 is inserted on the front side Z1.

The knitted lace 1 is inserted between the needle loops 25a and the first insertion yarns 22, is made of elastic elastic polyurethane, and is woven into a chain stitch structure to provide elasticity in the course direction C. It includes a third insert thread 24 that provides. With such a configuration, it is possible to provide the knitted lace 1 that exhibits a high fraying suppressing effect in the course direction C.

The knitted lace 1 is inserted between the needle loop 25a and the first insertion yarn 22, has elasticity to elastically expand and contract, and is woven into the chain stitch structure to provide elasticity in the course direction C, It includes a fourth insertion thread 28 bonded with the second insertion thread 23 . With such a configuration, it is possible to provide the knitted lace 1 having high stretchability in the course direction C by the fourth insertion yarn 28 and a high suppressing effect against fraying. The knitted lace 1 of the present embodiment includes a chain stitch yarn 21, a first insertion yarn 22, a second insertion yarn 23, a third insertion yarn 24, and a fourth insertion yarn 28. In the embodiment, the third insertion yarn 24 may not be included, and may be composed of the chain stitch yarn 21, the first insertion yarn 22, the second insertion yarn 23, and the fourth insertion yarn 28, and the fourth insertion yarn 28 It may be composed of the chain stitch yarn 21, the first insertion yarn 22, the second insertion yarn 23, and the third insertion yarn 24.

The first insertion thread 22 has adhesiveness and is composed of a composite thread in which at least two types of threads are combined. A composite yarn in which at least two types of yarn are combined may be composed of, for example, a core yarn made of a monofilament yarn and a plurality of covering yarns made of a plurality of fiber yarns covering the core yarn. With such a configuration, it is possible to provide the knitted lace 1 having improved functions such as moisture retention and heat retention due to the composite yarn and high resistance to fraying.

The knitted lace 1 of another embodiment of the present invention is inserted between the needle loop 25a and the first insertion yarn 22 instead of the fourth insertion yarn 28 that provides elasticity in the course direction C. It includes a fourth insertion thread 28 that is woven into the tissue and imparts at least one of various functions such as warmth, coolness, moisture retention, antistatic, antibacterial, deodorizing, and biodegradable functions. With such a configuration, it is possible to provide the knitted lace 1 having high resistance to fraying, which is imparted with functionality by the fourth insertion yarn 28, and similarly, a yarn having adhesiveness is used as the fourth insertion yarn 28. By doing so, it is possible to provide the knitted lace 1 having a higher resistance to fraying.

The chain stitch yarn 21 of the present embodiment is realized by an uncovered yarn, that is, a bare yarn that is not covered with a covered yarn, and has a melting temperature of preferably 225° C. or higher and a fineness of preferably 78 decitex (DTEX) or lower. More preferably, it is a long fiber yarn of 44 decitex (DTEX) or less, and for example, a multifilament made of polyamide (trade name: nylon) fiber can be used. In other embodiments, instead of polyamide, various fiber yarns such as rayon, polyester, polyurethane and polypropylene, or composite yarns thereof may be used.

The knitted lace 1 is knitted by a chain stitch yarn 21, a first insertion yarn 22, a second insertion yarn 23, a third insertion yarn 24, and a fourth insertion yarn 28, and is knitted by each yarn 21 to 24 and 28. , a plurality of grids are formed, and a plurality of through holes surrounded by each grid are formed. In such a knitted lace 1, a lace pattern is formed by the shape and arrangement of each lattice. In addition, the knitted lace 1 has a pattern portion in which the amount of yarn arranged per unit area is dense and a base portion in which the amount of yarn arranged per unit area is sparse. A pattern is formed by the shape and arrangement of the . Such patterned knitted lace 1 is used for manufacturing knitted lace products such as women's underwear. In addition to the first insertion yarn 22 and the second insertion yarn 23, a stretchable third insertion yarn 24 is further knitted into the knitted lace 1, and the stretchability is obtained in the wale direction W and the course direction C. Granted.

As shown in FIGS. 1 and 2, the knitted lace 1 includes a chain stitch yarn 21 forming a chain stitch structure of Raschel knitting having a plurality of loop-shaped portions 25a and 25b, and elasticity for elastically expanding and contracting. As a stretchable bonding yarn that is woven into the chain stitch structure to give the chain stitch structure elasticity in the course direction C and adheres at the contact points with the chain stitch yarn 21 and the first and third insertion yarns 22 and 24 A second insertion thread 23 is provided. The knitted lace 1 also has a first insertion yarn 22, which is woven in order to impart stretchability in the wale direction W to the chain stitch structure. The chain stitch yarn 21 may also be referred to as a warp yarn or a ground stitch. Also, the first insertion yarn 22 may be referred to as a weft yarn.

Further, the fourth insertion yarn 28 having heat-fusibility is inserted between the needle loop 25a of the chain stitch yarn 21 and the third insertion yarn 24, and the contact point 33 with the first insertion yarn 22 and the chain stitch yarn 21 It is adhered at a contact point 31 with the needle loop 25a. In this embodiment, the "contact point" is the point where the threads are physically in contact with each other by crossing or overlapping in parallel, and the "intersection" is regardless of whether the threads are running in parallel or in contact. It refers to the part where the threads intersect when viewed planarly (from the front of the lace).

The second insertion yarn 23 is inserted between the sinker loop 25b, which is the loop-shaped portion of the chain stitch yarn 21, and the first insertion yarn 22, and is bonded at the contact point with the sinker loop 25b of the chain stitch yarn 21. .

The third insertion thread 24 preferably has a fineness of 15 decitex (DTEX) to 467 decitex (DTEX) and is made of thermoplastic resin, preferably polyurethane fiber. Since the third insertion thread 24 uses normal elastic polyurethane, it preferably has a fineness of 15 decitex (DTEX) to 467 decitex (DTEX) in consideration of elongation and kickback. Further, when a thread having adhesiveness is used as the third insertion thread 24, the fineness of the thread to be used is preferably 11 decitex (DTEX) or more and 156 decitex (DTEX) or less.

Furthermore, in the knitted lace 1 , the second insertion yarns 23 and the third insertion yarns 24 are firmly bonded together at the points of contact 30 due to the adhesion of the second insertion yarns 23 . In addition, the first insertion yarn 22 and the second insertion yarn 23 intersect each other at the crossing portion 32, and the chain stitch yarn 21 and the first insertion yarn 22 are attached to the second insertion yarn 23 and the second insertion yarn 23 due to the adhesiveness of the second insertion yarn 23. 3 It is adhered to the insertion thread 24 although it is not as strong as the adhesion strength.

The second insertion thread 23 of this embodiment is made of filament thread having stretchability and adhesiveness. Further, in another embodiment of the present invention, the second insertion thread 23 may be a composite thread having a stretchable adhesive thread as a core thread. The first insertion thread 22 is a filament thread composed of a plurality of filaments made of synthetic resin, and for example, polyamide (trade name: nylon) having elastic elasticity is used. In other embodiments, the synthetic resin may be at least one yarn selected from, for example, polyester resins and polyurethane resins, or may be semi-synthetic fibers or natural fibers. Further, in another embodiment of the present invention, the first insertion thread 22 may be a composite thread in which two or more types of threads are combined with a hot-melt polyurethane resin fiber or the like as a core thread. The third insertion thread 24 is a thread also called spandex, and is a filament thread made of a material having stretchability or adhesiveness, or both, and is made of thermoplastic resin such as polyurethane resin or polyester resin.

The first insertion thread 22 is made of a stretchable long fiber thread (filament thread). Also, in another embodiment of the present invention, the first insertion thread 22 may be a composite thread having a stretchable adhesive thread as a core thread. According to such a configuration, the first insertion thread 22 is a composite thread in which two or more types of threads are combined, and at least one type of thread is composed of an adhesive composite thread. The seed yarn melts and adheres to the chain knitting yarn 21 and the second to fourth insertion yarns 23 to 24, 28, and high adhesion strength can be obtained. As a result, it is possible to suppress thread coming off regardless of the direction of the cut end.

The second insertion thread 23 of the present embodiment is made of polyurethane fiber, and the melting temperature of the second insertion thread 23 is lower than the melting temperatures of the first insertion thread 22 and the third insertion thread 24, and has thermoplasticity. Also, when an adhesive thread is used in addition to the second insertion thread 23 of another embodiment of the present invention, the melting temperature of the corresponding insertion thread becomes the same melting temperature as the second insertion thread. In addition, in the present embodiment, the second insertion thread 23 and the third insertion thread 24 are inserted in parallel, thereby increasing the number of adhesion points by heat setting and suppressing fraying of the thread at the cut end. An effect of increasing the effect is exhibited. In another embodiment, an insertion method may be adopted in which the second insertion thread 23 and the third insertion thread 24 intersect.

Preparation for knitting the knitted fabric is completed by selecting each yarn used for knitting the knitted lace 1, determining the pattern to be formed in the knitted lace 1, and designing the knitted fabric for forming the desired knitting structure. Once completed, the production of the knitted lace 1 begins. Furthermore, the present invention includes a fourth insertion thread 28 .

In the knitted fabric knitting process, a knitting machine, which is a Rassel knitting machine, is used to knit a precursor knitted fabric, which is a precursor of the knitted lace 1 . The knitting machine knits the second insertion yarn 23, the first insertion yarn 22, the third insertion yarn 24, the fourth insertion yarn 28, etc. into the chain stitch yarn 21 according to the designed knitting order to form the knitted lace 1. A precursor knitted fabric of a similar knitting structure is knitted.

In the precursor knitted fabric, the chain stitch yarn 21, the second insertion yarn 23, the first insertion yarn 22, the third insertion yarn 24 and the fourth insertion yarn 28 have elasticity. A knitting machine performs a knitting operation in a state in which each stretchable yarn is stretched with a predetermined tension. The precursor knitted fabric shrinks after knitting due to the restoring force of each yarn knitted in a stretched state, and when this elasticity is maintained up to the knitted lace 1, the knitted lace 1 becomes a stretch knitted lace having elasticity. becomes.

In the heating step, the knitted precursor knitted fabric is heated to a melting temperature of the second insertion yarn 23 and the fourth insertion yarn 28, which is the adhesive fiber, and is higher than the melting temperature of the second insertion yarn 23 and the fourth insertion yarn 28. In addition, the chain knitting yarn 21, the first insertion yarn 22, and the third insertion yarn 24 are heated to a temperature below the melting temperature and near the melting temperature. When heating the precursor knitted fabric, the precursor knitted fabric is stretched so as to conform to the standard pitch and width, and each yarn 21, 22, 23, 24, 28 is heated in a stretched state. As a result, the threads of the five members are brought into close contact with each other at the points of contact and intersections, and the second insertion thread 23 and the fourth insertion thread 28, which have been heated and have increased adhesiveness, are melted, and the remaining threads 21, 28 are melted. 22 and 24 will be adhered. In addition, when an adhesive thread is selected as an insertion thread other than the second insertion thread 23 and the fourth insertion thread 28, it melts in the same manner as the second insertion thread 23 and the fourth insertion thread 28, and the contact points between the adhesive threads are very large. They are strongly adhered, and are also adhered to each of the remaining yarns, though not as strongly as the adhesion strength between the adhesive yarns or between the heat-bonded yarn and the stretchable polyurethane.

Therefore, due to the adhesiveness of the second insertion yarn 23 and the fourth insertion yarn 28, each contact point between the chain stitch yarn 21, the first insertion yarn 22 and the third insertion yarn 24, the third insertion yarn 24 and the fourth insertion yarn 28 Among the points of contact or intersections between the second insertion thread 23 and the third insertion thread 24, and the points where the third insertion thread 24 and the fourth insertion thread 28 are in contact, the points of contact are particularly strongly bonded. Therefore, the chain stitch yarn 21 and the first insertion yarn 22 cross between the wales, the chain stitch yarn 21 is knitted as a chain stitch structure, and the contact portion with the second insertion yarn 23 is again bonded to the chain stitch yarn. Yarn slippage of 21 and first insertion yarn 22 is eliminated, and opening between wales is prevented without extending the transverse portion beyond the elongation of chain stitch yarn 21 against tensile force in wale direction W. In that case, the first insertion thread 22 is also adhered to the second insertion thread 23 and the third insertion thread 24, or the third insertion thread 24 and the fourth insertion thread 28, although the bonding strength is not as high.

FIG. 3 is an enlarged knitting structure diagram of the knitted lace 1 before heat setting. The second insertion yarn 23 has a shape as shown in FIGS. 1 and 2 when the knitted lace 1 is knitted.

The second insertion thread 23 of this embodiment is made of filament thread having stretchability and adhesiveness. Further, in another embodiment of the present invention, the second insertion yarn 23 is a composite yarn, and has a structure in which a stretchable core yarn is covered with a covering yarn. The core yarn is a monofilament yarn (filament yarn) made of a thermoplastic synthetic resin, such as polyester-based polyurethane. The covering yarn is a long fiber yarn (filament yarn) composed of a plurality of long fibers made of synthetic resin, and is made of polyamide (registered trademark nylon), for example.

In addition, when the second insertion yarn 23 of another embodiment is a composite yarn, it is covered with a covering yarn so that the core yarn is not exposed in a natural state before knitting without applying tension. The second insertion yarn 23 is knitted in a stretched state using the stretchability of the core yarn. When the second insertion yarn 23 is stretched, a gap is formed between the covering yarns, and the core yarn is exposed from this gap.

The core thread of the second insertion thread 23 is made of an adhesive polyurethane elastic thread.

As shown in FIG. 3, the chain knitting yarn 21 is chain-knitted to form a first loop-shaped portion 25a and a second loop-shaped portion 25b. The first loop-shaped portions 25a and the second loop-shaped portions 25b are alternately arranged in a row in the course direction C in a plurality of stages. Here, the first loop-shaped portion 25a is also called a needle loop, and the second loop-shaped portion 25b is also called a sinker loop. A wale is formed by alternately connecting the first loop-shaped portions 25a and the second loop-shaped portions 25b and extending in the course direction C. As shown in FIG. A plurality of wales are formed side by side in the wale direction W, and are connected to each other to form a chain stitch structure, in other words, a chain stitch structure. In addition, the chain stitch yarn 21 is appropriately swung sideways to connect wales adjacent to each other in the wale direction W, thereby forming a chain stitch structure having a function of preventing fraying. A portion where the chain stitch yarn 21 swings sideways is called a run stop structure 42 .

Each first loop-shaped portion 25a is generally formed in an inverted U shape and arranged generally side by side in the course direction C and the wale direction W orthogonal to the course direction C. As shown in FIG. Further, each first loop-shaped portion 25a opens in the course direction front stage C1, which is one side in the course direction. The first loop-shaped portions 25a are arranged in a row in the course direction C to form a course, and the first loop-shaped portions 25a are arranged in a row in the wale direction W to form a wale.

The second loop-shaped portion 25b connects the first loop-shaped portions 25a arranged in the course direction C. As shown in FIG. For example, pay attention to one second loop-shaped portion 25b. One end of the second loop-shaped portion 25b of interest continues to the end of the first loop-shaped portion 25a on the same stage as the second loop-shaped portion 25b of interest. The second loop-shaped portion 25b of interest is inserted from one side to the other side of the first loop-shaped portion 25a of the front stage C1 in the course direction of the second loop-shaped portion 25b of interest as it goes from one end to the other end. Extending to the rear stage C2 in the course direction, the first loop-shaped portion 25a at the same stage as the second loop-shaped portion 25b of interest is inserted from the other side to the other side, and extends to the other side W2 in the wale direction to form the second loop-shaped portion of interest. It continues to the end of the first loop-shaped portion 25a in the rear stage C2 in the course direction of the portion 25b. In this manner, the loop-shaped portions 25a and 25b are connected in a chain to form a course extending in the course direction C. As shown in FIG. Each insertion thread such as the second insertion thread 23 and the first insertion thread 22 is woven into a course by being sandwiched between the first loop-shaped portion 25a and the second loop-shaped portion 25b.

In the present embodiment, the course direction C is the warp direction of the knitted fabric, and means the direction of knitting the lace. The wale direction W is the lateral direction of the knitted fabric and means a direction that intersects the lace knitting direction. A plurality of first loop-shaped portions 25a are arranged side by side in the course direction C and the wale direction W. As shown in FIG. Further, the plurality of first loop-shaped portions 25a arranged in the course direction C and the wale direction W are arranged so as to be roughly in contact with a predetermined imaginary plane. In this case, each braiding yarn knitted into the chain stitch structure, such as the second insertion yarn 23 and the first insertion yarn 22, is arranged on one side with respect to the imaginary plane.

In the embodiment according to the present invention, the direction in which the first and second insertion threads 22 and 23 are arranged with respect to the imaginary plane extending along the first loop-shaped portion 25a is referred to as front side Z1. The direction in which the virtual plane is arranged with respect to the second insertion threads 22 and 23 is called the back side Z2. 1, 2 and 3, the front side Z1 is the front side of the paper in the thickness direction Z perpendicular to the paper, and the back side Z2 is the direction away from the paper in the direction perpendicular to the paper.

On the front side Z1 of the knitted lace 1, the first loop-shaped portion 25a is hidden by knitting yarns such as the second insertion yarn 23 and the first insertion yarn 22. As shown in FIG. Therefore, the surface of the front side Z1 of the knitted lace 1 has a clearer pattern and lace pattern formed on the knitted lace 1 than the surface of the back side Z2.

For example, the second loop-shaped portion 25b of interest is inserted into the front side Z1 of the first loop-shaped portion 25a of the front stage C1 in the course direction of the second loop-shaped portion 25b, and the second loop-shaped portion 25b is inserted in the course direction of the second loop-shaped portion 25b. The first loop-shaped portion 25a of the step is inserted through the back side Z2 and continues to the first loop-shaped portion 25a of the rear step C2 in the course direction.

The first insertion thread 22 is a thread for forming a lace pattern in the chain stitch structure. The first insertion yarn 22 is woven into each of the wales adjacent to each other in the wale direction W to connect the two wales adjacent to each other in the wale direction W. As shown in FIG. As shown in FIG. 3, the first insertion yarn 22 has a laterally swung portion 22a extending from one wale adjacent to the other in the wale direction W to the other wale, and a woven portion 22b woven into the wale.

A through-hole 37 passing through the knitted fabric in the thickness direction is formed in a space surrounded by two laterally swayed portions 22a arranged in the course direction C and a wale connecting the laterally swayed portions 22a. The shape and arrangement of the through-holes 37 are adjusted by selectively arranging the horizontally swung portion 22a of the first insertion thread 22 . As a result, the knitted lace 1 can be formed with a lace pattern represented by the arrangement and shape of the through holes 37 . Here, the through hole 37 surrounded by the laterally swinging portion 22a and the two wales may be filled with a pattern thread (not shown) forming a motif to form a pattern.

The second insertion thread 23 extends to the region of the front side Z1 beyond the first loop-shaped portion 25a. The second insertion thread 23 extends in the course direction C by passing between the preset first loop-shaped portion 25a and the second loop-shaped portion 25b. Further, in the present embodiment, the second insertion yarns 23 are knitted into the chain stitch structure, and the second insertion yarns 23 are knitted side by side in the wale direction W. As shown in FIG. The position where the second insertion yarn 23 is knitted is knitted in the entire region of the knitted lace 1 .

The second inset yarn 23 is realized by a yarn having a lower melting temperature than the chain knitting yarn 21 and the first inset yarn 22 . In this embodiment, a yarn that partially melts in a heated state in a heating step (heat setting step) performed after knitting the knitted lace is used. The second insertion yarn 23 is used to prevent the chain stitch yarn 21 and the first insertion yarn 22 forming the knitted lace 1 from fraying. In the present embodiment, the second insertion yarn 23 is realized by an uncovered yarn, that is, a bare yarn that is not covered by a covered yarn, so-called bare yarn, and is realized by a polyurethane elastic yarn having a melting temperature of about 140° C. or higher and 190° C. or lower. be done. The second insertion thread 23 is woven into the chain stitch structure in a stretched state with respect to the natural state.

The first insertion yarn 22 extends along the course and is woven into all of the loop-shaped portions 25a, 25b forming the wale. Therefore, in the knitted lace 1, the first insertion yarn 22 is provided in both the base portion where the amount of yarn per unit area is sparse and the pattern portion where the amount of yarn per unit area is denser than the base portion. be woven. Further, in this embodiment, the knitted lace 1 has a plurality of first insertion yarns 22, and each first insertion yarn 22 is knitted for each wale. In this manner, the first insertion yarn 22 is knitted over the entire region of the chain stitch structure.

The first insertion thread 22 extends from the first loop-shaped portion 25a to the region of the front side Z1, and extends from the second loop-shaped portion 25b to the region of the back side Z2. The first insertion thread 22 zigzags as it progresses in the course direction C along the corresponding course. For example, when the first insertion thread 22 passes between the first loop-shaped portion 25a and the second loop-shaped portion 25b of interest from one wale direction side W1 to the other wale direction side W2, the first loop-shaped portion of interest It passes from the wale direction other side W2 to the wale direction one side W1 between the first loop-shaped portion 25a and the second loop-shaped portion 25b of the rear stage C2 in the course direction of 25a.

Immediately after knitting, the first insertion yarn 22 extends over the area of the front side Z1 beyond the first loop-shaped portion 25a, and extends over the area of the back side Z2 of the knitted lace 1 beyond the second insertion yarn 23. As shown in FIG. Therefore, in the region where the first insertion thread 22 and the second insertion thread 23 are inserted between the same first loop-shaped portion 25a and the second loop-shaped portion 25b, the first insertion thread 22 passes through the first loop-shaped portion 25a and the second insertion thread 23 is inserted. Also, the second insertion thread 23 is inserted between the first insertion thread 22 and the second loop-shaped portion 25b. In this case, the chain stitch yarn 21 is stretched in the course direction C, so that the radius of curvature of the first loop-shaped portion 25a and the second loop-shaped portion 25b becomes small, and the first insertion yarn 22 and the second insertion yarn 23 and the first loop-shaped portion 25a to contact the second insertion thread 23 and the first loop-shaped portion 25a.

In the present embodiment, in the region where the second insertion thread 23 and the third insertion thread 24 are inserted between the same first loop-shaped portion 25a and the second loop-shaped portion 25b, the second insertion thread 23 and the third The insertion thread 24 sandwiches the first insertion thread 22 while being aligned with each other, and passes through the first loop-shaped portion 25a and the second loop-shaped portion 25b. Specifically, the second insertion thread 23 is arranged at the same stage as the first loop-shaped portion 25a in the course direction from the side where the first loop-shaped portion 25a of interest joins the second loop-shaped portion 25b of the front stage C1 in the course direction. passes through the second looped portion 25b of the .

The third insertion thread 24 is formed in a second loop shape on the same stage as the first loop-shaped portion 25a in the course direction from the side where the first loop-shaped portion 25a of interest joins the second loop-shaped portion 25b of the front stage C1 in the course direction. It passes between the part 25b. In this case, the knitted lace 1 is pulled in the course direction C, so that the third insertion yarn 24 and the fourth insertion yarn 28 come into close contact with each other at the portion passing through the second loop-shaped portion 25b.

In another embodiment of the present invention, the insertion method with an offset in which the insertion direction is symmetrical between adjacent wales, which is seen in the conventional method of inserting a power net structure, is adopted as the first insertion method. It is also possible to use the thread 22 (jacquard reed) or assign the third insertion thread 24 and the fourth insertion thread 28 respectively. In addition to the use for offset insertion, the third insertion yarn 24 and the fourth insertion yarn 28 are inserted in all wales, and in that state, the third insertion yarn 24 and the fourth insertion yarn 28 are inserted. may be inserted by intersecting. In the above case as well, the second to fourth insertion threads 23, 24, 28 are brought into proximity and contact.

Further, immediately after knitting, the third insertion yarn 24 and the fourth insertion yarn 28 woven into the chain stitch structure are not completely restrained by the chain stitch structure, so the third insertion yarn 24 and the fourth insertion yarn 28 are not completely restrained by the chain stitch structure. Some of the plurality of portions in contact with may have portions where the fourth insertion thread 28 is arranged closer to the front side Z1 than the third insertion thread 24 is. Even in this case, most of the plurality of portions where the third insertion thread 24 and the fourth insertion thread 28 contact each other are arranged on the back side Z2 of the fourth insertion thread 28 relative to the third insertion thread 24. become.

The fineness of the chain stitch yarn 21 is preferably 56 decitex (DTEX) or less, more preferably 44 decitex (DTEX) or less. The fineness of the chain knitting yarn 21 is such that it does not break when used as a knitted lace product, and is as thin as possible. For example, various fibers such as nylon (polyamide-based synthetic fiber), rayon, polyester and polypropylene can be used. Also, the various threads used in this embodiment are merely examples, and other types of threads may be used.

As for the fineness of the second insertion thread 23, a polyurethane elastic thread preferably having a fineness of 11 decitex (DTEX) or more and 156 decitex (DTEX) or less is used. In addition to the polyurethane elastic thread, any material having a relatively low melting temperature and having thermoplasticity may be used, such as a polyamide synthetic fiber. Alternatively, an adhesive elastic thread may be used as the second insertion thread 23 .

According to the knitted lace 1 of the present embodiment as described above, the first insertion yarn 22 is knitted into the chain stitch structure of the chain stitch yarn 21 to give elasticity in the wale direction W, and the second insertion is given to the chain stitch structure. The yarn 23 is woven to give stretchability in the course direction C, and the third insertion yarn 24 is woven into the chain stitch structure to give stretchability in the course direction C. - 特許庁The knitted lace 1 thus knitted is subjected to a heat setting treatment so that the second insertion yarn 23 having a low melting point adheres to the chain stitch yarn 21, and the first and third insertion yarns 22 and 24 are also subjected to a heat setting treatment. The distortion of the entire knitted lace 1 is eliminated by partially bonding with the insertion yarn 23, and the knitted lace 1 that is less prone to fraying is produced. When the lace cut surface of such a knitted lace 1 is pulled in the wale direction W, the first to third insertion yarns (jacquard yarn, adhesive yarn, stretch yarn) 22, 23, 24 try to come out from the insertion portion and tear. However, since the bond between the chain stitch yarn 21 and the second insertion yarn 23 and between the second insertion yarn 23 and the third insertion yarn 24 is strengthened, the chain stitch structure is stabilized and partially However, other insertion thread attachment points are also formed. As a result, the insertion threads 22 to 24 are more difficult to come off than in the prior art, and fraying at the cut ends is prevented.

Further, when the first insertion thread 22 is a heat-adhesive composite thread, it is possible to obtain a higher effect against thread slipping and fraying.

In this way, the bonding portion where the second insertion yarn 23 is bonded to other yarns and the insertion yarn sandwiched between yarns are strongly adhered to each other, thereby strengthening the binding of the chain stitch structure. Specifically, the first loop-shaped portion 25 a and the second loop-shaped portion 25 b are joined together via the first insertion thread 22 . As a result, even if the chain stitch yarn 21 is partially cut off, it is possible to prevent the second loop-shaped portion 25b from separating from the first loop-shaped portion 25a. In addition, it is possible to prevent the adhered portion sandwiched between the yarns from being separated from the adhered portion. Therefore, unraveling of the chain stitch yarn 21 is prevented at the bonded portion between the first loop-shaped portion 25a and the second loop-shaped portion 25b, preventing the chain stitch yarn 21 from unraveling beyond the bonded portion and suppressing fraying. can.

In the knitted lace 1 of the present embodiment, the third inserted yarn 24 is knitted in a stretched state separately from the second inserted yarn 23, so that the knitted lace 1 is formed by the second inserted yarn 23 and the third inserted yarn 24 after knitting. It will contract due to contraction force. As a result, the knitted lace 1 can be given higher stretchability. The stretch thread that constitutes the third insertion thread 24 is a stretch thread made of a thermoplastic resin. For example, polyurethane elastic thread, so-called spandex, adhesive stretch thread, or the like may be used.

The third insertion thread 24 extends closer to the first loop-shaped portion 25a than the second insertion thread 23 is. The third insertion thread 24 and the second insertion thread 23 pass through the second loop portion 25b in the same direction and are woven into the chain stitch structure. In other words, the second insertion thread 23 is extended and woven similarly to the third insertion thread 24 . The third insertion yarn 24 is woven into each wale and passes zigzag as it advances in the course direction C along each course.

In the present embodiment, the third insertion thread 24 and the second insertion thread 23 are arranged from the side opposite to the side where the first loop-shaped portion 25a of interest is connected to the second loop-shaped portion 25b of the front stage C1 in the course direction. It passes through the first loop-shaped portion 25a and the second loop-shaped portion 25b on the same stage in the course direction. In addition, the first insertion thread 22 is arranged from the side where the first loop-shaped portion 25a of interest is connected to the second loop-shaped portion 25b of the front stage C1 in the course direction, and the second loop of the same stage as the first loop-shaped portion 25a of interest in the course direction is pass through the shaped portion 25b. Therefore, in the portion where the third insertion thread 24, the first insertion thread 22, and the second insertion thread 23 all pass through the same loop, the third insertion thread 24 and the second insertion thread 23 intersect the first insertion thread 22. .

Even when the first insertion yarn 22 is knitted into the knitted lace 1 as in the present embodiment, the same effect as in the first embodiment can be obtained. That is, by bonding the first insertion thread 22 to other threads, each thread can be prevented from fraying. In addition, by bonding the second insertion yarn 23 and the chain stitch yarn 21 with the first insertion yarn 22, it is possible to prevent the first insertion yarn 22 from coming out of the chain stitch structure, that is, so-called spun-off.

Further, in the present embodiment, by pulling the knitted lace 1 in the wale direction W, the regions surrounded by the third insertion yarn 24 and the first insertion yarn 22 are brought close to each other in the wale direction W, and the first insertion yarn 22 , the second insertion yarn 23, the third insertion yarn 24 and the first loop-shaped portion 25a and the second loop-shaped portion 25b of the chain stitch yarn 21 approach each other. By heating the knitted lace 1 in a state where the knitted lace 1 is pulled in the wale direction W in this way, a part of the second inserted yarn 23 can be dissolved at the approaching portion 50, and the first inserted yarn 22, It is possible to increase the adhesive force that bonds the third insertion thread 24, the second insertion thread 23, the first loop-shaped portion 25a, and the second loop-shaped portion 25b. In addition, in the present embodiment, since the third insertion thread 24 and the second insertion thread 23 extend in the same direction, the contact portion where the second insertion thread 23 contacts the third insertion thread 24 can be increased. It is possible to more reliably prevent the insertion thread 24 from coming off. The tension during heat setting of the knitted lace 1 varies depending on the fineness and material of each yarn, the tension of the knitted lace 1, and the heat setting time. need to keep

Further, in this embodiment, the fourth insertion thread 28 is closer to the first loop-shaped portion 25a than the third insertion thread 24, that is, the fourth insertion thread 28 is closer to the first loop-shaped portion 25a than the third insertion thread 24 is. placed in When the third insertion yarn 24 and the fourth insertion yarn 28 run in the same direction and are woven into the looped portion, the third insertion yarn 24 and the fourth insertion yarn 28 run parallel to each other. The 4th insertion thread 28 is arranged inside the first loop-shaped portion 25a compared to the third insertion thread 24 . As a result, when the adhesive thread is used as the fourth insertion thread, the second insertion thread 23 is arranged side by side with the third insertion thread 24 and the fourth insertion thread 28 in the thickness direction Z, and the second insertion thread 23 and the fourth insertion thread are arranged side by side. The third insertion thread 24 is bonded, and the fourth insertion thread 28 and the third insertion thread 24 can be bonded. Also, by bonding the chain stitch yarn 21 together, a strong bonding point can be created. Further, when the functional yarn is used for the fourth insertion yarn 28, the functional yarn is arranged on the back side Z2 of the knitted lace 1, and the wearer can enjoy the effect of the functional yarn to the maximum. For example, when cupra, which is one of regenerated fibers, is used for the fourth insertion yarn 28, it has excellent moisture absorption and desorption properties, which are the characteristics of cupra fibers, and has a good texture. By arranging the cupra thread in the part), it is possible to impart the function of being comfortable to the touch and providing a cool feeling. It is also possible to combine yarns with different functions to impart multiple functions.

In the prior art, when the cut surface of the lace is pulled in the wale direction W, the insertion threads 22 and 24 come off from the insertion portions, and the lace appears torn. According to the present invention, there are bonding points between the second inlay yarn 23 and the chain stitch yarn 21, the second inlay yarn 23 and the third inlay yarn 24, and the second inlay yarn 23 and the fourth inlay yarn 28, respectively. Furthermore, the use of the thermal bonding thread for the third insertion thread 24 and the fourth insertion thread 28 of the present embodiment, or the combination of the elastic thread and the bonding thread, enhances the bonding strength of the bonding portion, further stabilizing the chain stitch structure. As a result, the insertion threads 22, 23, 24, and 28 are more difficult to come off than in the prior art, and when the heat-bonded composite yarn is used as the first insertion thread 22, which is a jacquard yarn, it is even more effective in preventing the yarn from coming off. be.

According to the present embodiment, the shift between the chain stitch yarn 21 and the first to third insertion yarns 22 to 24 is reduced by improving the kickback (the force of shrinking when the knitted lace 1 is stretched, the feeling of fit). As a result, the bonding strength is increased as compared with the bonding of only the chain stitch yarn 21 of the prior art, so that the bonding points are less likely to come off during stretching and return to the position before stretching. Since the easily stretchable yarn (third inset yarn) and the yarn (second inset yarn) that is slightly less stretchable than the stretchable yarn are woven in the chain stitch structure in parallel, only the third inset yarn 24 is used. The force to be stretched is inhibited, and the force to return is increased, compared to the case where the fiber is woven.

(Improvement of shape stability by improving the adhesive strength of each thread)
In the thermal bonding of the prior art, the combinations of threads that are easily bonded are: thermal bonding threads to each other > thermal bonding threads and elastic polyurethane > thermal bonding threads and nylon, and others. On the other hand, in the embodiment according to the present invention, the adhesion between the heat bonding yarns and between the heat bonding yarn and the stretchable polyurethane is mainly performed. Adhesion is possible even at temperature.

Moreover, even if the set temperature is low, if adhesion is possible, the bursting strength can be improved. (Usually, when the setting temperature is low, the heat setting of the polyurethane yarn is weak (weak) and the washing shrinkage rate worsens, but this is suppressed by the morphological stability of the heat-fusible yarn. Naturally, physical properties such as bursting strength and shrinkage rate If there is no problem with the surface, it is possible to set the yarn at a high setting temperature to maintain the shape of each yarn.

(Regarding stretchability control)
There are differences in basic physical properties such as elongation and kickback between conventional stretch yarns and thermoadhesive stretch yarns. and good kickback. Although there is a limit to the desired state of stretching and kickback with only the heat-adhesive stretchable yarn, the desired elongation and Kickback property can be obtained.

Since the second insertion thread 23 is preferably made of molten polyurethane, it is easily adhered to the third insertion thread 24 made of the same material by being heated during heat setting. It also adheres to the chain stitch yarn 21, although the adhesion strength is reduced. When the first insertion yarn 22 is made of fibers other than polyurethane resin fibers such as polyamide, rayon, polyester, etc., it is difficult to adhere to the second insertion yarn 23. However, in the case of a composite yarn containing polyurethane resin fibers, it is difficult to bond with the polyurethane resin fibers. Easy to adhere. Therefore, only a portion of the intersections as described above are bonded, and not all of the intersections of the second insertion thread 23 and the first insertion thread 22 are bonded. Furthermore, since the intersecting portions of the chain stitch yarns 21 are also not bonded, the intersecting portion adhesion rate of the intersecting portion of the second insertion yarn 23 and the third insertion yarn 24 is higher than the adhesion ratio of the other yarn contact portions. .

As described above, in this embodiment, when adhesive yarns are used for the chain stitch yarn 21, the first insertion yarn 22, the second insertion yarn 23, the third insertion yarn 24, and the fourth insertion yarn 28, each yarn However, as described later, it is possible to realize a knitted lace 1 with less fraying and a supple texture.

In the heat setting process, the precursor knitted fabric is heated to bring the intersecting portions of the chain stitch yarns 21, the first insertion yarns 22, and the second insertion yarns 23 into close contact with each other, and form the knitted lace 1. In the scouring or dyeing process, the knitted lace 1 is subjected to heat treatment, also called heat setting, to fix the shape, and the manufacturing procedure of the knitted lace 1 is completed. By heating the precursor knitted fabric, the second insertion yarn 23 is melted and the stretchability is slightly impaired, but the second insertion yarn 23 is heated only to below the melt breaking temperature, so the stretchability is maintained. can do. Therefore, the knitted lace 1 has high stretchability.

According to the knitted lace 1 of this embodiment, the stretchable second insertion yarn 23 is woven into the chain stitch structure to impart stretchability to the chain stitch structure. A part of the intersection of the chain stitch yarn 21 and the second insertion yarn 23, which can realize the lace 1, is adhered. This prevents positional deviation between the chain stitch yarn 21 and the second insertion yarn 23 and positional deviation between the chain stitch yarn 21 and the first insertion yarn 22, thereby preventing distortion of the lattice. For example, even if external force due to the manufacturing process such as sewing or cutting of the knitted lace 1 or external force due to the usage state such as wearing or washing acts, the distortion of the lattice is prevented and the shape of the lattice is maintained. Thus, a knitted lace 1 having a good appearance can be obtained, and the excellent appearance can be maintained for a long period of time.

Moreover, if the stretchable polyurethane thread or the adhesive polyurethane thread is exposed to the skin of the knitted lace, the anti-slip effect of the polyurethane thread (the stickiness of the rubber) will prevent the stockings from slipping down. There is a method to expose to However, to put it the other way around, the stickiness feels unpleasant, and in some cases, skin disorders may occur. In the present invention as well, the second insertion yarn 23 is positioned on the lace surface side. The polyurethane yarn of the yarn 23 is not exposed to the surface, so that the surface of the knitted lace 1 can be suppressed from feeling sticky. Prevents riding up, provides a soft feel, and maintains a good texture. Similar effects can also be obtained when a composite yarn is used as the chain stitch yarn 21 . Here, the "texture" means a touch, and a good texture means a touch having flexibility and a soft feeling.

In addition, unlike the case where all the intersections of the chain stitch yarn 21 and the second insertion yarn 23 and the intersections of the chain stitch yarns 21 are all bonded, the stretchability and flexibility are not impaired. A knitted lace 1 which maintains its properties and has a good texture is obtained. Furthermore, the adhesion rate at the intersection of the second insertion yarn 23 and the third insertion yarn 24 is higher than the adhesion ratio at the intersection of the chain stitch yarn 21 and the second insertion yarn 23 . As a result, the adhesion rate of the entire intersection of the threads is kept low, flexibility is maintained, and misalignment between the second insertion thread 23 and the third insertion thread 24, which is likely to affect the distortion of the lattice, is prevented as much as possible, thereby improving the aesthetic appearance. can keep. In this way, a stretchable knitted lace 1 with good appearance and good texture can be obtained. Further, if a knitted lace product is manufactured using such a high-quality knitted lace 1, a high-quality knitted lace product can be obtained.

The heating conditions in the above-described heating step (or heat setting) are set to a low heating temperature condition that melts the second insertion yarn 23 and prevents yarns other than the second insertion yarn 23 from changing characteristics including embrittlement. can do. Moreover, when the first insertion yarn 22 is a composite yarn, the heating condition in the heating step is preferably set to a heating condition that heats the core yarn to a temperature that allows it to maintain its shape as a yarn. This makes it possible to prevent the second insertion yarn 23 and the molten material of the core yarn from appearing on the surface of the knitted fabric, making it difficult for the knitted fabric to come into contact with the skin.

As for the heating conditions, for example, a heating temperature and a heating time are set. Let B1 be the lowest melting temperature at which the adhesive thread melts, and let D1 be the time until it softens when heated at the lowest melting temperature. Also, let B2 be the lowest characteristic change temperature at which the properties of yarns other than the adhesive yarn change, and let D2 be the time until the characteristics change when heated at the lowest characteristic change temperature. In this case, in this embodiment, if the heating temperature in the heating step is B3 and the heating time is D3, B1<B3<B2 and D1<D3<D2 are set. Furthermore, by setting B3 to a value as close to B1 as possible and D3 to a value as close to D1 as possible, the form of the adhesive yarn can be easily maintained.

In this embodiment, a thermoplastic polyurethane elastic thread of 11 decitex (DTEX) or more and 156 decitex (DTEX) or less, preferably 11 decitex (DTEX) or more and 56 decitex (DTEX) or less is used as the second insertion thread 23 . Further, heat treatment is performed at a heating temperature of 170° C. or higher and 195° C. or lower for a heating time of 30 sec or higher and 90 sec or lower. As a result, the bonding thread can be melted and the remaining threads can be prevented from changing their properties.

For example, when the heating time is constant, if the heating temperature is less than 170° C., the adhesive strength of the melted adhesive thread is reduced. On the other hand, if the heating temperature exceeds 195° C., it becomes difficult to maintain the form of the adhesive yarn as a yarn, and there is a possibility that the properties of yarns other than the adhesive yarn may change. On the other hand, in the present embodiment, by setting the heating temperature to 170° C. or higher and 195° C. or lower as described above, it is possible to prevent the above-described problem from occurring.

The thinner the second insertion thread 23 is, the smaller the adhesion part becomes closer to the point contact, and the better the texture is. and the texture is lost. Further, the thinner the second insertion thread 23 is, the lower the strength is, and the thicker the second insertion thread 23 is, the higher the strength. Therefore, if the second insertion yarn 23 is a thin yarn of less than 11 decitex (DTEX), the strength is too small, and if it is a thick yarn of more than 156 decitex (DTEX), the texture is impaired. have. By setting the second insertion thread 23 to 11 decitex (DTEX) or more and 56 decitex (DTEX) or less, sufficient strength and good texture can be obtained.

In addition, since the lace knitted fabric 20 is partially bonded at the intersections as described above, it has the effect of preventing the development of frayed threads. Therefore, for example, the knitted lace 1 can be cut into arbitrary shapes, which are called motif cuts and free cuts.

The stretchable heat-bondable insertion thread 23 used in this embodiment is more likely to retain its shape when heat-set than a conventional stretchable thread, such as a non-heat-bondable polyurethane thread. By heat setting the insertion yarn 23 in a bent state due to the tension of the other yarn inserted through the chain stitch yarn 21, it is easy to keep the shape of the bent state. Such an insertion yarn 23 attempts to maintain the state of being bent by the tension of the other yarns inserted through the chain stitch yarn 21 even after heat setting. Are better.

As a result, the distance between chain stitch loops and between adjacent chain stitch yarns is maintained, so that dimensional change is stabilized.

A knitted lace product undergoes repeated expansion and contraction in the course direction C and the wale direction W due to external forces such as wearing and washing, causing the contact points of each thread to shift and causing waviness in the thickness direction.

The reason for this is that the second insertion thread 23, which is a stretchable heat-bonding thread, is easier to maintain its shape during heat setting than a normal stretchable thread (polyurethane thread having no heat-bonding property), as described above. If the chain knitting yarn 21 is inserted and the bent state is maintained by the tension of other yarns during heat setting, the shape of the high-density portion and low-density portion will be stabilized as it is, and the second insertion yarn 23 The difference in shrinkage due to the presence or absence of motifs is reduced, reducing waviness in the thickness direction of the lace due to expansion and contraction.

(Regarding frayed edges)
After knitting, there are almost no products that undergo only dyeing and heat setting processes, and the knitted lace is cut, sewn and adhered to itself and other members, and commercialized as underwear and outerwear. In recent years, some products have been commercialized in an uncut state for the purpose of reducing the reflection of the inner (underwear) line on the outer (outerwear) and stress-free seams. When the product is worn or washed, the chain stitch yarn 21 may be loosened from the sewn or bonded portion, resulting in a hole. In addition, the polyurethane thread may pop out (pass between the chain stitches) in some cases. Depending on the object, measures such as blocking may be taken to prevent it. In the uncut state, it is necessary to maintain the cut surface by some method.

The reason is that the second insertion thread 23 and the third insertion thread 24 are sandwiched between the needle loop 25a and the sinker loop 25b, and the third insertion thread 23 and the sinker loop 25b or the needle loop 25a are brought into closer contact. By performing heat setting and bonding in this state, the chain stitch yarn 21 is not easily frayed and the unraveling of the loop is stopped, so there are few holes in the sewn portion. In addition, compared with the conventional technology (polyurethane yarn with no thermal adhesiveness), the stretchable thermally adhesive yarn does not come off due to use such as wearing or washing. This eliminates the need for measures such as barring.

(Maintenance of transparency)
The knitted lace is in the widest state after heat setting, and in most cases, the knitted lace 1 shrinks due to subsequent processing, wearing, and washing. In that case, the density in the course direction C and the density in the wale direction W increase, resulting in a loss of transparency. In addition, the knitted lace looks twisted when shrunk while waving in the thickness direction, resulting in a poor appearance. Since the density in the course direction C and the density in the wale direction W, which are greatly related to dimensional changes and have little shrinkage, are stabilized, the sheerness peculiar to the knitted lace 1 can be maintained.

Although the embodiment of the present invention has been described above, it is not limited to these, and within the scope not departing from the gist of the invention, for example, the insertion direction and thread use of the insertion yarn, for example, the horizontal crossing frequency of the chain stitch yarn, Various modifications and additions can be made to the tulle structure, the knit structure such as the power net structure, and the like.

1 knitting lace 21 chain knitting yarn 22 first insertion yarn (jacquard yarn or pattern yarn)
23 Second insertion thread (thermoadhesive elastic thread)
24 third insertion thread (stretchable elastic thread or thermoadhesive elastic thread)
25a first loop-shaped portion (needle loop)
25b second loop-shaped portion (sinker loop)
28 Fourth insertion thread (thermoadhesive elastic thread or functional thread)
C Course direction C1 Front stage in course direction C2 Rear stage in course direction W Wale direction W1 One side in wale direction (right side)
W2 Wale direction other side (left side)
Z Thickness direction Z1 Front side Z2 Back side

Claims (10)

a chain stitch yarn constituting a chain stitch structure having a plurality of loop-shaped portions including needle loops and sinker loops;
Made of at least one selected from polyamide, polyester, semi-synthetic fiber, natural fiber, and polyurethane, which has elastic elasticity, it is woven into the chain stitch structure and crosses between adjacent wales. , a first insertion yarn that provides elasticity in the wale direction;
a second insertion yarn having elasticity that elastically expands and contracts, the second insertion yarn being woven into the chain stitch structure to impart elasticity in the course direction;
A knitted lace, wherein the second insertion yarn is located on the back side of the sinker loop and on the front side of the first insertion yarn when the sinker loop is on the front side. 2. The knitted lace according to claim 1, wherein the second insertion yarn is made of elastic yarn having adhesive properties. It is made of a thermoplastic resin that elastically expands and contracts, is positioned between the needle loop and the first insertion yarn, is woven into the chain stitch structure, and provides elasticity in the course direction. Knitted lace according to claim 1 or 2, characterized in that it comprises 3 inset yarns. The knitted lace according to claim 3, wherein the third insertion yarn has adhesiveness. 5. Any one of claims 1 to 4, wherein the first insertion thread is a composite thread in which two or more types of threads are combined, and at least one type of thread is composed of a composite thread having adhesiveness. Knitted lace as described in paragraph. 6. The method according to any one of claims 1 to 5, further comprising a fourth insertion thread located between the needle loop and the first insertion thread and knitted into the chain stitch structure. knitted lace. 7. The knitted lace according to claim 6, wherein the fourth insertion yarn is bonded to the third insertion yarn to provide stretchability in the course direction. 7. The knitted lace according to claim 6, wherein the fourth insertion yarn has adhesive properties. 7. The method according to claim 6, wherein the fourth insertion thread includes a fourth insertion thread having at least one function of warmth, coolness, moisturizing, antistatic, antibacterial, deodorant, and biodegradable functions. Knitted lace as described. The knitted lace according to any one of claims 1 to 9, wherein the chain stitch yarn is repeatedly swung sideways to form a crosswise weave.

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