JP6263669B1 - Elastic warp knitted fabric and Russell lace - Google Patents

Abstract

An elastic warp knitted fabric and a raschel lace that are easily stretchable in an arbitrary direction on a knitted fabric. A stretch warp knitted fabric includes a base yarn 11 forming a plurality of chain stitches C, and a plurality of weft swinging portions 12a, 13a that are inserted into each chain stitch C and reciprocate in the weft direction by two or more wales. A plurality of back yarns 12 and 13 and a ground fabric 10 having a first stretch yarn 14 inserted into any one of the plurality of chain stitches C, and a second stretch yarn 15 inserted into the ground fabric 10. And including. The weft swinging portions 12a of the back yarns 12 are separated from each other by 5 courses or more. The weft swing portions 12a and 13a of the two adjacent back yarns 12 and 13 among the plurality of back yarns are positioned so as to be shifted from each other in the warp direction by one or more courses. The second elastic yarn 15 is inserted through a portion 15a inserted into the same chain knitting 3 to 11 courses, or through a portion 15b inserted into a plurality of chain knittings with a swing in the same direction 3 to 11 courses. 2 round trips in the weft direction. [Selection] Figure 1

Description

  The present invention relates to a stretch warp knitted fabric and a raschel lace.

  Lace is widely known as a material that gives decorativeness to clothing such as innerwear. A general lace can have a variety of patterns, but lacks elasticity. Patent Document 1 is a kind of warp knitted fabric in which the stretch degree is changed by inserting the stretch thread in the weft direction only in the pattern portion in addition to the stretch yarn inserted in the warp direction as a document relating to the stretchability. Russell race is disclosed.

JP 2007-23427 A

  Clothes that require stretchability are not limited to innerwear, but are diverse. When such a garment is combined with a non-stretchable lace, the lace restricts the expansion and contraction of the garment, so that original functions such as wearability and design properties obtained by the stretchability are impaired.

  In view of such circumstances, an object of the present invention is to provide an elastic warp knitted fabric and a raschel lace that can be easily expanded and contracted in an arbitrary direction on the knitted fabric.

  A first aspect of the present invention is a stretch warp knitted fabric, which forms a plurality of chain yarns, and a plurality of weft swing portions that are inserted into each chain knitting and reciprocate in the weft direction more than two wales A plurality of back yarns, a ground structure having a first stretch yarn inserted into any one of the plurality of chain stitches, and a second stretch yarn inserted into the ground structure. The weft swinging portions of the back yarns are separated from each other by 5 courses or more, and the weft swinging portions of the two back yarns adjacent to each other are shifted from each other in the warp direction by 1 course or more, and the second extension / contraction The yarn is inserted in the weft direction more than 2 wales through the portion inserted 3 to 11 courses in the same chain knitting, or the portion inserted 3 to 11 courses in the plurality of chain knitting with the same direction of weft. The gist is to reciprocate.

  Each weft swing portion of the plurality of back yarns may be knitted at a position having symmetry in the ground structure.

  Each of the first elastic yarn and the second elastic yarn is at least one elastic yarn of polyurethane, polyether ester, polyester, synthetic rubber, natural rubber, or the at least one elastic yarn. Further, it may include a yarn covered with a spun yarn or a filament yarn.

  The first elastic yarn and the second elastic yarn may be covered with a fusion yarn such as fusion urethane → fusion urethane.

  The second aspect of the present invention is a Russell lace made of the stretchable knitted fabric according to the first aspect.

  ADVANTAGE OF THE INVENTION According to this invention, the elastic warp knitted fabric and Russell lace which can be easily expanded-contracted in the arbitrary directions of a knitted fabric can be provided.

It is an organization chart (knitting pattern) of the warp knitted fabric concerning this embodiment. It is a figure for demonstrating arrangement | positioning (distribution) of the weft swing part of the back yarn which concerns on this embodiment. It is a figure for demonstrating the structure | tissue of the 2nd elastic thread which concerns on this embodiment, (a) And (b) is a figure which shows the 1st example of the said structure | tissue, (c) And (d) is the 1st example of the said structure | tissue. It is a figure which shows two examples. It is a figure which shows an example of the area | region where a 2nd elastic thread is inserted in the warp knitted fabric which concerns on this embodiment.

  Hereinafter, a warp knitted fabric (elastic warp knitted fabric) according to an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.

  FIG. 1 is an organization chart (knitting pattern) of a warp knitted fabric according to the present embodiment, and FIG. 2 is a diagram for explaining the arrangement (distribution) of the weft swinging portion of the back yarn according to the present embodiment. . The warp knitted fabric of this embodiment is manufactured using a Russell knitting machine. Moreover, when manufacturing this warp knitted fabric as a race (Russell lace) with many voids (holes), it is manufactured using a Russell lace warp knitting machine. In this case, the number of needles used may be changed as appropriate according to the size of the gap (hole) (for example, every other needle may be used).

  As shown in FIG. 1, the ground yarn 11 is threaded through the reed (ground) L1 of the warp knitting machine, the back yarn 12 is threaded through the reed (ground) L2, and the reed (ground) L3. The back yarn 13 is threaded. Further, the first stretchable thread 14 is threaded through the heel (handle heel) L4, and the second stretchable thread 15 is threaded through the heel (pattern heel) L5. However, the second elastic yarn 15 may be passed through the ground. This point is appropriately selected according to the design and pattern. Furthermore, a pattern yarn (not shown) for imparting a pattern to the warp knitted fabric may be passed through another kite (pattern kite) (not shown).

The warp knitted fabric of the present embodiment includes a ground structure 10 including a base yarn 11, back yarns 12 and 13, and a first stretch yarn 14. The ground yarn 11 forms a plurality of chain stitches C that are the basic structure of the ground texture 10. Chain C
For example has a structure of 02/20 //. The ground yarn 11 is a non-stretchable yarn, for example, a filament yarn such as nylon or polyester. The thickness of the ground yarn 11 is, for example, 20 to 280 denier.

  The back yarns 12 and 13 are alternately arranged in the weft direction and are inserted into the corresponding chain stitches C. That is, one of the back yarns 12 and 13 is arranged with 1 in 1 out, and the other of the back yarns 12 and 13 is arranged with 1 out 1 in. The back yarns 12 and 13 are, for example, filament yarns such as nylon and polyester and stretch yarns, for example, spun yarns or filament yarns covered with filament yarns. The thickness of the back yarns 12 and 13 is, for example, 20 to 280 denier.

  The back yarn 12 has a plurality of weft swinging portions 12a that are separated from each other by 5 courses or more (7 courses in FIG. 1) and reciprocate in the weft direction by 2 wales or more. In addition, the interval in the warp direction of the weft swing portion 12a of this embodiment is 5 to 19 courses. The weft swing part 12a is inserted into the stitches of other chain stitches C located on the same course as the weft swing part 12a, so that each chain stitch C into which the back yarn 12 is inserted (the stitches of each chain stitch C). Are connected. That is, the back yarn 12 connects the chain stitches C (the stitches of the chain stitches C) into which the back yarns 12 are inserted at intervals of 5 courses or more.

  Similar to the back yarn 12, the back yarn 13 also has a plurality of weft swinging portions 13a that are separated from each other by 5 courses or more (7 courses in FIG. 1) and reciprocate in the weft direction by 2 wales or more. The weft swing part 12a is inserted into the stitches of other chain stitches C located on the same course as the weft swing part 12a, so that each chain stitch C into which the back yarn 13 is inserted (the stitches of each chain stitch C). Are connected. That is, the back yarn 13 connects the chain stitches C (the stitches of the chain stitches C) into which the back yarns 13 are inserted at intervals of 5 courses or more.

  The warp knitted fabric of this embodiment may use a Russell knitting machine (so-called Jacquard (Jacquard) Russell machine) having a jacquard (Jacquard) head. In this case, the back yarns 12 and 13 are threaded through a francine that can be swung irregularly (that is, at an arbitrary position). Then, the back yarns 12 and 13 are inserted into desired portions of the chain knitting C by an operation such as franchin to form the weft swing portions 12a and 13a. Needless to say, when a Jacquard Russell machine is used, a complicated pattern can be easily formed.

  As shown in FIG. 2, the weft swing portions 12a and 13a of the two back yarns 12 and 13 adjacent to each other are positioned so as to be shifted from each other in the warp direction by one or more courses. In other words, the weft portions 12a and 13a of the adjacent back yarns 12 and 13 are not arranged on the same course. Therefore, the connection points of the chain stitches C in this embodiment are scattered in a zigzag along the warp direction. As long as the above-described positional deviation condition is satisfied, the positions of the weft swing parts 12a and 13a are not limited to those shown in FIG. 2, and other back yarns having different positions of the weft swing parts may be added.

  The weft swing parts 12a and 13a may be knitted at positions having symmetry in the ground structure 10. For example, as shown in FIG. 2, the weft swing parts 12a and 13a are distributed at equal intervals in the longitudinal direction with reference to a predetermined course indicated by a dotted line in the figure. In other words, the weft swing parts 12a and 13a are periodically distributed in the longitudinal direction and the weft direction, or the combined direction of both directions. In this case, uniform stretchability is easily obtained in the warp direction and the weft direction.

  As shown in FIG. 1, the first elastic yarn 14 is zigzag inserted into any one of the plurality of chain stitches C. The number of chain stitches C into which the first stretch yarns 14 are inserted is determined according to the stretch degree of the set warp knitted fabric. In this embodiment, the 1st elastic thread 14 is inserted in all the chain stitches.

  The first elastic yarn 14 is at least one elastic yarn of polyurethane-based, polyether ester-based, polyester-based, synthetic rubber-based, natural rubber-based, or covers the at least one elastic yarn with a span yarn or a filament yarn. Including the finished thread. The first stretch yarn 14 is, for example, a 140 denier spandex yarn.

  The warp knitted fabric of the present embodiment includes second elastic yarns 15 inserted into the ground structure 10. Similar to the first elastic yarn 14, the second elastic yarn 15 is also at least one elastic yarn of polyurethane, polyether ester, polyester, synthetic rubber, natural rubber, or the at least one elastic yarn. Including a thread covered with a spun yarn or a filament yarn. The second elastic yarn 15 is, for example, a covering yarn obtained by winding 70 nylon filament yarn around 40 denier polyurethane yarn.

  FIG. 3 is a view for explaining the structure of the second stretchable yarn 15 according to the present embodiment. FIG. 3A and FIG. 3B are diagrams showing a first example of the tissue, and FIG. 3C and FIG. 3D are diagrams showing a second example of the tissue. FIG. 4 is a diagram illustrating an example of a region R in which the second stretch yarn is inserted in the warp knitted fabric. In addition, the grid | lattice-like line | wire (scale) shown in FIG. 4 shows one wale or one course.

  As will be described later, the second elastic yarn 15 is inserted into the same chain knitting 3a to 11 course, or inserted into the plurality of chain knitting C in the same direction with 3 to 11 courses. It reciprocates in the weft direction for more than 2 wales via the part 15b.

  The second elastic yarn 15 in the first example reciprocates in the weft direction by two or more wales via a portion 15a inserted 3 to 11 courses in the same chain knitting C. That is, the second stretchable yarn 15 is inserted into the ground structure 10 in the left direction or the right direction, which is the weft direction, and then inserted into the ground structure 10 and then inserted into the same chain knitting 3 to 11 courses. Inserted in the opposite direction.

  For example, as shown in FIG. 3A, the second stretchable yarn 15 is formed on the chain knitting C1 by forming a portion 15a inserted in a zigzag manner from 3 courses to 11 courses (3 courses in this example), then 6 wales right Move in the direction (underlap). Thereafter, the second elastic yarn 15 forms a portion 15a to be inserted in the zigzag 3 courses to 11 courses (3 courses in this example) in the chain knitting C2 and moves (under wraps) 6 wales leftward to form the chain knitting. Return to C1.

  In this way, the course when moving to the right direction for 2 wales or more (6 wales in this example) is referred to as S, and the course when moving to the left direction for 2 wales or more (6 wales in this example) is referred to as E. S and course E are separated from each other by an interval of 3 or more courses (3 courses in this example). This interval is also maintained in the chain stitch C1.

  The structure shown in FIG. 3 (b) is also in the weft direction in which the second stretch yarn 15 is 2 wales or more through the portion 15a inserted into the same chain knitting 3 to 11 courses in the same way as the structure of FIG. 3 (a). Go back and forth. However, the position of the chain knitting that is the starting point of the outward path of the second stretchable yarn 15 is different from the position of the chain knitting that is the end point of the returning path.

  For example, the second elastic yarn 15 moves (underlaps) 6 wales in the right direction after forming a portion 15a inserted into the chain knitting C1 in a zigzag manner of 3 to 11 courses (3 courses in this example). Thereafter, the second elastic yarn 15 forms a portion 15a to be inserted into the chain knitting C2 in a zigzag manner of 3 to 11 courses (3 courses in this example), and moves (underlaps) to the left side of the 4 wales to form the chain knitting. Return to C3.

  The second elastic yarn 15 in the second example reciprocates in the weft direction by two or more wales through the portion 15b inserted into the plurality of chain stitches C in the same direction with the weft swing in the same direction. That is, the second stretchable yarn 15 is inserted into the ground structure 10 for two or more wales in the left or right direction, which is the weft direction, and then one or more chains without being swung for one wal or more in the reverse direction. 3 to 11 courses are inserted into the knitting C, and further inserted in the reverse direction for 2 wales or more.

  For example, as shown in FIG. 3 (c), the second stretchable yarn 15 is formed by forming a portion 15a inserted in a zigzag 3 courses to 11 courses (3 courses in this example) in the chain knit C1, and then the right side of the 3 wales Move in the direction (underlap). Next, the second stretch yarn 15 is inserted in the zigzag two courses in the chain knitting C4 and moved (underlapped) to the right of the two wales. After that, the second stretch yarn 15 is inserted into the chain knitting C5 in two courses in a zigzag manner, moved to the right of the 3 wales (underlap), moved to the chain knitting C2 and moved to the left of the 8 wales (underwrap). Return to chain C1.

  That is, the second stretch yarn 15 is inserted into the chain knitting C4 and the chain knitting C5 without being swung from the chain knitting C2 toward the chain knitting C1 by one or more wales from the chain knitting C1 to the chain knitting C2. This leads to chain knitting C2. As a result, the second elastic yarn 15 forms a portion 15b to be inserted into the chain stitches C4, C5, C2 by 3 to 11 courses by wefting in the same direction (right direction in this example). After forming the portion 15b, the second elastic yarn 15 returns to the chain stitch C1.

  Similarly to the structure of FIG. 3C, the structure shown in FIG. 3D also has two or more wales through a portion 15b inserted into a plurality of chain braids C with 3 to 11 courses with a weft swing in the same direction. Go back and forth in the weft direction. However, the weft direction of the second elastic yarn 15 when forming the portion 15b is opposite to the direction shown in FIG.

  That is, the second elastic yarn 15 forms a portion 15a inserted in the zigzag 3 courses to 11 courses (3 courses in this example) in the chain knitting C1, and then moves (underlaps) 8 wales to the right to chain. It is inserted into the knitting C2 and further moved (underlap) to the left by 3 wales. Next, the second stretch yarn 15 is inserted into the chain knitting C5 in two courses in a zigzag manner, and moves (underlaps) in the left direction by two wales. Thereafter, the second stretch yarn 15 is inserted into the chain knitting C4 by two courses in a zigzag manner, and moves to the left side of the 3 wales (underlap) to return to the chain knitting C1. The second elastic yarn 15 forms a portion 15b that is inserted 3 to 11 courses into the chain stitches C2, C5, and C4 by wefting in the same direction (leftward in this example).

  Each chain knitting which becomes the starting point and the ending point when the second stretchable yarn 15 is wefted for two or more wales is appropriately determined according to the set warp knitted fabric pattern and the like. For example, as shown in FIG. 4, when a predetermined pattern is formed in the region R by the second stretchable thread 15, the second stretchable thread 15 is threaded through the handle collar L5 and the above-described portion 15a or portion 15b. The second elastic yarns 15 are distributed as evenly as possible in the region R under the condition satisfying the weft of 2 wales or more via the.

According to the present embodiment, at least the following effects are obtained.
(1) The weft swing portions of each back yarn are separated from each other by 5 courses or more, and are offset from the adjacent other back yarn weft swing portions by one course or more in the warp direction. The first elastic yarn is inserted in the warp direction, and the second elastic yarn is inserted in the same chain knitting for 3 to 11 courses, or 3 to 11 courses are inserted in the plurality of chain knittings with the same direction of weft. Travel back and forth in the weft direction for more than 2 wales. Accordingly, the connecting points of the chain stitches are scattered in a zigzag along the warp direction, the warp direction stretch is obtained by the first stretch yarn, and the weft stretch is obtained by the second stretch yarn. That is, stretchability in the warp direction, the weft direction, and their combined direction is obtained. For example, in the present embodiment, the width of the warp knitted fabric after knitting (after being cut from the warp knitting machine) is reduced to 80% or less of that during knitting, and then the above setting process is performed, so that all directions are obtained. In this case, a stretchability (stretching degree) of 1.4 times or more can be obtained.

  (2) The intervals between the chain stitches in the weft direction and the chain stitches and the intervals between the chain stitches in the warp direction can be made uniform. Further, when the warp knitting machine is knitted by the warp knitting machine, the base yarn forming the chain knitting can be appropriately drawn (for example, straight), and is prevented from being distorted. Furthermore, thread breakage can be prevented.

(3) An appropriate return (shrinkage) can be obtained when the warp knitted fabric is stretched in the weft direction.

  The first elastic yarn 14 and the second elastic yarn 15 may be covered with a fusion yarn such as fusion urethane. After the warp knitted fabric of this embodiment is knitted, it goes through the steps of pre-setting, refining (cleaning), dyeing, and setting, which are well-known processes. In these steps, the warp knitted fabric is treated at a high temperature (for example, 70 to 120 ° C.). When each stretch yarn is covered with a fusion yarn such as fusion urethane, the surface of the yarn is once melted by this high temperature and then solidifies. Can be difficult.

  In addition, this invention is not limited to embodiment mentioned above, is shown by description of a claim, and also includes all the changes within the meaning and range equivalent to description of a claim.

  L1 ... 筬 (earthen), L2 ... 筬 (earthen), L3 ... 筬 (earthen), L4 ... 筬 (patterned), L5 ... 筬 (patterned), C (C1 to C5) ... DESCRIPTION OF SYMBOLS 11 ... Ground yarn, 12, 13 ... Back yarn, 12a, 13a ... Weft swing part, 14 ... 1st elastic yarn, 15 ... 2nd elastic yarn

Claims (5)

Any one of a ground yarn forming a plurality of chain stitches, a plurality of back yarns inserted into each of the chain stitches and forming a plurality of weft swinging portions that reciprocate in the weft direction more than 2 wales, and the plurality of chain stitches A ground structure having a first stretch yarn inserted into the chain stitch;
A second elastic thread inserted into the ground structure;
Including
The weft swing portions of each back yarn are separated from each other by 5 courses or more,
Each weft swing part of the two back yarns adjacent to each other is shifted by one course or more in the warp direction,
The second stretch yarn has two wales through a portion inserted 3 to 11 courses into the same chain knitting, or a portion inserted 3 to 11 courses into a plurality of chain knittings with a weft in the same direction. Go back and forth in the weft direction,
Elastic warp knitted fabric. Each weft portion of the plurality of back yarns is knitted at a position having symmetry in the ground structure,
The stretch warp knitted fabric according to claim 1. Each of the first elastic yarn and the second elastic yarn is at least one elastic yarn of polyurethane, polyether ester, polyester, synthetic rubber, natural rubber, or the at least one elastic yarn. Including yarns covered with spun yarn or filament yarn,
The stretch warp knitted fabric according to claim 1 or 2. The first elastic yarn and the second elastic yarn are covered with a fusion yarn such as fusion urethane,
The stretch warp knitted fabric according to any one of claims 1 to 3.   The Russell lace which consists of a stretch warp knitted fabric as described in any one of Claims 1 thru | or 4.

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