JP2019085660A - Stretchable warp knitted fabric and raschel lace - Google Patents

Abstract

To provide a stretchable warp knitted fabric and raschel lace which can be easily stretched in an arbitrary direction on the knitted fabric.SOLUTION: The stretchable warp knitted fabric comprises: a ground weave 10 having a foundation yarn 11 forming a plurality of chain stitches C, a plurality of back yarns 12 and 13 forming a plurality of weft swing portions 12a and 13a inserted into the respective chain stitches C and going back and forth in a weft direction for two wales or more, and a first stretchable yarn 14 inserted to any chain stitch of the plurality of chain stitches C; and a second stretchable yarn 15 inserted to the ground weave 10. The weft swing portions 12a of each back yarn 12 are separated from each other by 5 courses or more. The respective weft swing portions 12a and 13a of two adjacent back yarns 12 and 13 of the plurality of back yarns are located to be shifted from each other in a warp direction by one course or more. The second stretchable yarn 15 goes back and forth in the weft direction by 2 wales or more via a portion 15a where 3-11 courses are inserted to the same chain stitch C or a portion 15b where 3-11 courses are inserted to some chain stitches together with weft swing in the same direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to elastic warp knits and Russell races.

  Lace is widely known as a material that imparts decorativeness to clothing such as innerwear. General races have poor stretchability although they can have various patterns. As a document relating to this stretchability, Patent Document 1 is a kind of warp knitted fabric in which a stretch yarn is inserted in the latitudinal direction only in the part of the handle in addition to the stretch yarns inserted in the warp direction Discloses the Russell race.

Japanese Patent Application Publication No. 2007-23427

  Garments that are required to have stretchability are not limited to innerwear and are diverse. When such a garment is combined with a non-stretchable lace, the lace limits the stretch of the garment, so that the original functions such as the wearability and the design obtained by the stretchability are lost.

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

  The first aspect of the present invention is an elastic warp knitted fabric, in which a plurality of base yarns forming a plurality of chain knits, and a plurality of weft swing parts inserted in each of the chain knits and reciprocating in the weft direction by 2 wales or more are formed. And a second stretchable yarn to be inserted into the ground tissue, the ground texture having a plurality of back yarns that are to be inserted, and a first stretchable yarn inserted into one of the plurality of chain knits. The weft swing portions of each of the back yarns are separated from each other by 5 courses or more, and the weft swing portions of two adjacent back yarns are mutually offset by 1 course or more, and the second stretch The yarn may be inserted in the same direction as a section of 2 wales or more through a portion inserted into 3-11 courses in the same chain knitting or a part inserted into 3-11 courses in a plurality of chain knitting with weft swing in the same direction. The point is to go back and forth.

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

  Each of the first stretch yarn and the second stretch yarn is at least one stretch yarn of polyurethane, polyether ester, polyester, synthetic rubber, natural rubber, or the at least one stretch yarn. And yarns covered with spun yarns or filament yarns.

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

  A second aspect of the present invention is a Russell lace comprising the elastic warp knitted fabric according to the first aspect.

  According to the present invention, it is possible to provide a stretchable warp knit and a russell lace which are easy to stretch in any direction on the knit fabric.

It is an organization chart (knitting pattern) of the warp knitted fabric which concerns on this embodiment. It is a figure for demonstrating the arrangement | positioning (distribution) of the weft part of the back thread which concerns on this embodiment. It is a figure for demonstrating the structure | tissue of the 2nd elastic yarn which concerns on this embodiment, (a) and (b) is a figure which shows the 1st example of the said structure, (c) and (d) is the figure of the said structure. It is a figure which shows two examples. It is a figure which shows an example of the area | region where 2nd elastic yarn 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 based on the attached drawings. In addition, the same code | symbol is attached | subjected to the part which is common in each figure, and the duplicate description is abbreviate | omitted.

  FIG. 1 is a texture diagram (knitting pattern) of a warp knitted fabric according to the present embodiment, and FIG. 2 is a view for explaining the arrangement (distribution) of weft swing parts of the back yarn according to the present embodiment. . The warp knitted fabric of the present embodiment is manufactured using a Russell knitting machine. When this warp knitted fabric is manufactured as a lace (Russell lace) having many voids (voids), it is manufactured using a Russell lace warp knitting machine. In this case, the number of needles used may be changed appropriately (for example, every other needle may be used) in accordance with the size of the void (void).

  As shown in FIG. 1, the base yarn 11 is threaded on the hook (ground thread) L1 of the warp knitting machine, the back thread 12 is threaded on the hook (ground thread) L2, and the hook (ground thread) L3 is The back yarn 13 is threaded. Further, the first stretchable yarn 14 is passed through the weir (pattern weir) L4, and the second stretchable yarn 15 is passed through the weir (pattern weir) L5. However, the second stretchable yarn 15 may be passed through the ground. This point is suitably selected according to a design, a pattern, etc. Furthermore, a patterned yarn (not shown) for giving a pattern to a warp knitted fabric may be passed through another crimp (pattern) (not shown).

The warp knitted fabric of the present embodiment is provided with a ground structure 10 consisting of a ground yarn 11, back yarns 12 and 13, and a first stretchable yarn 14. The ground yarn 11 forms a plurality of chain stitches C which is a basic structure of the ground tissue 10. Chain C
Has a tissue of, for example, 02/20 //. The base yarn 11 is a non-stretching yarn, and is, 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 latitudinal direction and inserted into the corresponding chain stitches C. That is, one of the back yarns 12 and 13 is arranged in 1 in 1 out, and the other of the back yarns 12 and 13 is arranged in 1 out 1 in. The back yarns 12 and 13 are, for example, filament yarns such as nylon and polyester, or stretch yarns, such as yarns covered with span yarns or filament yarns. The thickness of the back yarns 12 and 13 is, for example, 20 to 280 denier.

  The back yarns 12 are separated from each other by five or more courses (7 courses in FIG. 1), and form a plurality of weft portions 12a that reciprocate in the weft direction by two or more wales. The interval in the warp direction of the weft portion 12a of this embodiment is 5 to 19 courses. The weft swinging portion 12a is inserted in the stitch of another chain stitch C located on the same course as the weft swinging portion 12a, whereby each chain stitch C with the back yarn 12 inserted (stitch of each chain stitch C) Connect That is, the back yarn 12 connects the chain stitches C (stitches of the chain stitches C) into which the back yarn 12 is inserted at intervals of 5 courses or more.

  Like the back yarn 12, the back yarn 13 also has a plurality of weft portions 13a separated from each other by 5 courses or more (7 courses in FIG. 1) and reciprocated in the weft direction by 2 wales or more. The weft swinging portion 12a is inserted in the stitch of another chain stitch C located in the same course as the weft swinging portion 12a, whereby each chain stitch C with the back yarn 13 inserted (stitch of each chain stitch C) Connect That is, the back yarn 13 connects the chain stitches C (the stitches of the chain stitches C) into which the back yarn 13 is inserted at intervals of 5 courses or more.

  The warp knit fabric of this embodiment may use a Russell knitting machine (so-called jacquard (Ricard) Russell machine) equipped with a jacquard (jacquard) head. In this case, the back yarns 12 and 13 are twisted in a yarn that can be randomly (i.e., at any point) weft-sliding. Then, the back yarns 12 and 13 are inserted into the desired portion of the chain stitch C by the operation of the francine or the like to form the weft swing portions 12a and 13a. It goes without saying that a complicated handle can be easily formed when using a Jacquard Russell machine.

  As shown in FIG. 2, the weft portions 12a and 13a of the two back yarns 12 and 13 adjacent to each other are offset from each other in one or more course. In other words, the weft portions 12a and 13a of the adjacent back yarns 12 and 13 do not line up on the same course. Therefore, the connection points of the chain stitches C in the present embodiment are scattered in a zigzag along the warp direction. The positions of the weft portions 12a and 13a are not limited to those shown in FIG. 2 as long as the positional deviation condition is satisfied, and other back yarns having different positions of the weft portions may be added.

  The weft portions 12a and 13a may be knitted at symmetrical positions in the ground structure 10. For example, as shown in FIG. 2, the respective weft portions 12a, 13a are distributed at equal intervals in the longitudinal direction with reference to a predetermined course shown by dotted lines in the figure. In other words, the weft portions 12a and 13a are periodically distributed in the longitudinal direction and the latitudinal direction, or the combining direction in both directions. In this case, equal stretchability can be easily obtained in the warp direction and the weft direction.

  As shown in FIG. 1, the first stretchable yarn 14 is inserted in a zigzag in any of the plurality of chain knits C. The number of chain knits C into which the first stretchable yarns 14 are inserted is determined in accordance with the degree of stretch of the warp knitted fabric to be set. In the present embodiment, the first stretchable yarns 14 are inserted into all the chain knits.

  The first stretch yarn 14 covers at least one stretch yarn of polyurethane type, polyether ester type, polyester type, synthetic rubber type, and natural rubber type, or covers a span yarn or filament yarn to the at least one stretch yarn. Containing yarn. The first elastic yarn 14 is, for example, a 140 denier spandex yarn.

  The warp knitted fabric of the present embodiment includes a second stretchable yarn 15 inserted into the ground tissue 10. Like the first stretch yarn 14, the second stretch yarn 15 is also at least one stretch yarn of polyurethane, polyether ester, polyester, synthetic rubber, and natural rubber, or the at least one stretch yarn. And yarns covered with spun yarns or filament yarns. The second stretchable yarn 15 is a covering yarn obtained by, for example, winding 70 nylon filaments around a 40 denier polyurethane yarn.

  FIG. 3 is a view for explaining the structure of the second stretchable yarn 15 according to the present embodiment. 3 (a) and 3 (b) show a first example of the tissue, and FIGS. 3 (c) and 3 (d) show a second example of the tissue. FIG. 4 is a view showing an example of a region R in which the second stretchable yarn is inserted in the warp knitted fabric. The grid lines (scales) shown in FIG. 4 indicate one wale or one course.

  As described later, the second stretchable yarn 15 is inserted into the portion 15a into which the 3-11 course is inserted in the same chain stitch C, or 3-11 courses in the plurality of chain stitches C with the weft swing in the same direction. Reciprocate in the weft direction by 2 wales or more via the portion 15b.

  The second stretchable yarn 15 in the first example reciprocates in the latitudinal direction by 2 wales or more via the portion 15a which is inserted into the same chain stitch C with 3 to 11 courses. That is, the second stretchable yarn 15 is inserted two or more wales in the ground direction 10 in the left direction or the right direction, which is the latitudinal direction, and then inserted 3 to 11 courses in the same chain knit C, and further two or more wales It is inserted in the reverse direction.

  For example, as shown in FIG. 3 (a), the second stretchable yarn 15 forms a portion 15a which is inserted into the chain knitting C1 in a zigzag manner from 3 courses to 11 courses (3 courses in this example), and then 6 wales right Move in the direction (underlap). Thereafter, the second stretchable yarn 15 forms a portion 15a to be inserted into the chain knitting C2 in a zigzag manner from 3 courses to 11 courses (3 courses in this example), and moves (underlaps) in the left direction of 6 wales to carry out chain knitting Return to C1.

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

  Similarly to the tissue shown in FIG. 3A, the tissue shown in FIG. 3B also has 2 wales or more of the second stretchable yarn 15 in the weft direction through the portion 15a which is inserted into the same chain stitch C with 3 to 11 courses. To and from. However, the positions of the chain knitting which is the starting point of the outward path of the second stretchable yarn 15 and the chain knitting which is the end point of the returning path are different.

  For example, the second stretchable yarn 15 forms a portion 15a in which 3 courses to 11 courses (3 courses in this example) are inserted in a zigzag in the chain stitch C1, and then moves (underlaps) in the right direction by 6 wales. After that, the second stretchable yarn 15 forms a portion 15a to be inserted into the chain knitting C2 in a zigzag manner from 3 courses to 11 courses (3 courses in this example), and moves (underlaps) in the left direction of 4 wales to carry out chain knitting Return to C3.

  The second stretchable yarn 15 in the second example reciprocates in the weft direction by 2 wales or more via the portion 15b which is inserted in the plurality of chain stitches C with the weft swing in the same direction. That is, the second stretchable yarn 15 is inserted into the ground structure 10 two or more wales in the left direction or right direction, which is the latitudinal direction, and then squeezed in one or more wales 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 forms a portion 15a which is inserted into the chain stitch C1 in a zigzag manner from 3 courses to 11 courses (3 courses in this example), and then 3 wales right Move in the direction (underlap). Next, the second stretchable yarn 15 is inserted into the chain stitch C4 in a zigzag manner for two courses, and is moved (underlap) in the right direction of the two wales. Thereafter, the second stretch yarn 15 is inserted into the chain knitting C5 in a zigzag two courses, moved to the 3 wales right direction (underlap), and after being made the chain knitting C2, moved to the 8 wales left direction (underlap) Return to chain stitch C1.

  That is, the second stretchable yarn 15 is inserted into the chain knit C4 and the chain knit C5 without being squeezed from the chain knit C2 to the chain knit C1 by one or more wales between the chain knit C1 and the chain knit C2. The chain stitch C2 is reached. As a result, the second stretchable yarn 15 forms a portion 15b into which 3 to 11 courses are inserted in the chain knits C4, C5 and C2 by weft swing in the same direction (right direction in this example). After forming the portion 15b, the second stretchable yarn 15 returns to the chain stitch C1.

  The tissue shown in FIG. 3 (d) is also 2 wales or more through the part 15b inserted 3-11 courses in a plurality of chain stitches C with weft swing in the same direction as the tissue in FIG. 3 (c) It reciprocates in the latitudinal direction. However, the weft swing direction of the second expandable yarn 15 at the time of forming the portion 15 b is opposite to the direction shown in FIG.

  That is, the second stretchable yarn 15 forms a portion 15a in which 3 courses to 11 courses (3 courses in this example) are inserted in a zigzag in the chain knitting C1, and then moves (underlaps) to the right by 8 wales It is inserted into the knitting C2, and is further moved leftward by 3 wales (under lap). Next, the second stretchable yarn 15 is inserted into the chain stitch C5 in a zigzag manner for two courses, and moved (underlap) in the left direction of the two wales. Thereafter, the second stretchable yarn 15 is inserted into the chain stitch C4 in a zigzag manner for two courses, and moved (underlap) in the left direction of the 3 wales to return to the chain stitch C1. The second stretchable yarn 15 forms a portion 15b which is inserted into the chain stitches C2, C5 and C4 by 3 to 11 courses by weft swing in the same direction (in this example, left direction).

  The respective chain knits which become the starting point and the end point when the second stretchable yarn 15 performs weft swing for 2 wales or more are appropriately determined according to the pattern of the warp knitted fabric to be set and the like. For example, as shown in FIG. 4, when a predetermined handle is formed in the region R by the second stretchable yarn 15, the second stretchable yarn 15 is passed through the handle bar L5, and the portion 15a or the portion 15b described above The second stretchable yarns 15 are distributed as equally as possible in the region R under the condition of satisfying the weft swing of 2 wales or more via.

According to the present embodiment, at least the following effects are achieved.
(1) The weft portion of each back yarn is separated from each other by 5 or more courses, and is offset from the weft portion of another adjacent back yarn by 1 or more course. The first stretchable yarn is inserted in the warp direction, and the second stretchable yarn is inserted in the same chain knit in a portion of 3 to 11 courses, or 3 to 11 courses in a plurality of chain knits with weft swing in the same direction. Reciprocate in the latitudinal direction more than 2 wales through the part to be Accordingly, the connection points of the respective chain knits are scattered in a zigzag along the warp direction, and the first stretch yarns can obtain the expansion and contraction in the warp direction, and the second stretch yarns can obtain the expansion and contraction in the latitudinal direction. That is, stretchability in the warp direction, the weft direction, and the composite direction thereof can be obtained. For example, in the present embodiment, after the width of the warp knitted fabric after knitting (after being cut from the warp knitting machine) is reduced to 80% or less at the time of knitting, the above-mentioned setting step is performed to obtain all directions. The stretchability (stretching degree) of 1.4 times or more can be obtained in

  (2) The spacing between chain knitting and chain knitting in the latitudinal direction, and the spacing between each stitch of chain knitting in the longitudinal direction can be made uniform. In addition, during knitting of a warp knitted fabric by a warp knitting machine, it is possible to appropriately (for example, straightly) pull out a base yarn forming a chain knit and prevent distortion. Furthermore, thread breakage can be prevented.

(3) Proper return (shrinkage) is obtained when the warp knitted fabric is stretched in the latitudinal direction.

  The first stretchable yarn 14 and the second stretchable yarn 15 may be covered with a fusion yarn such as fusion urethane. After being knitted, the warp-knitted fabric of the present embodiment passes through each of the well-known steps of pre-set, refining (washing), dyeing, and setting. In these steps, the warp knitted fabric is treated at a high temperature (e.g., 70 to 120C). When each stretchable yarn is covered with a fusion yarn such as fusion urethane, the high temperature temporarily melts the surface of the yarn and then solidifies, so that the contacting yarns are adhered and separated. It can be difficult to do.

  The present invention is not limited to the above-described embodiment, but is shown by the description of the claims, and further includes all the modifications within the meaning and range equivalent to the description of the claims.

  L1 筬 (ground), L2 ... 筬 (ground), L3 ... 筬 (ground), L4 ... 筬 (pattern), L5 ... 筬 (pattern), C (C1 to C5) ... chain knitting, 11: Earth thread, 12, 13: Back thread, 12a, 13a: Weft portion, 14: First elastic thread, 15: Second elastic thread

Claims (5)

Any of a plurality of base yarns forming a plurality of chain knits, a plurality of back yarns inserted in each of the chain knits and forming a plurality of weft swing portions reciprocating in the weft direction by 2 wales or more, and the plurality of chain knits A ground tissue having a first expansion yarn to be inserted into a chain knit;
A second stretchable yarn to be inserted into the ground tissue;
Including
The weft swing parts of each back yarn are separated from each other by 5 courses or more,
The weft portions of the two back yarns adjacent to each other are offset from one another in one or more course directions,
The second stretchable yarn is 2 wales through a portion inserted 3-11 courses in the same chain knit, or a portion inserted 3-11 courses in a plurality of chain knits with weft swing in the same direction. Reciprocate in the latitudinal direction
Elastic warp knitted fabric. Each weft portion of the plurality of back yarns is knitted in a position having symmetry in the ground structure,
The elastic warp knitted fabric according to claim 1. Each of the first stretch yarn and the second stretch yarn is at least one stretch yarn of polyurethane, polyether ester, polyester, synthetic rubber, natural rubber, or the at least one stretch yarn. Including yarns covered with spun yarns or filament yarns,
The elastic warp knitted fabric according to claim 1 or 2. The first stretchable yarn and the second stretchable yarn are coated with a fusion yarn such as fusion urethane.
The elastic warp knit fabric as described in any one of Claims 1 thru | or 3.   A Russell race comprising the elastic warp knitted fabric according to any one of claims 1 to 4.

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