JP2008088588A - Warp knitted fabric and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a warp knitted fabric composed of knitted fabric parts having excellent durability and different tightening forces without deteriorating texture or feeling of wearing, i.e. a double knitted fabric part and a single knitted fabric part, and to further provide the stretchable warp knitted fabric. <P>SOLUTION: The warp knitted fabric is composed of the double knitted fabric part 3 in which a face side fabric structure 1 is connected to a back side fabric structure 2 with connecting yarns 4 and the single knitted fabric part formed by cutting off either of the face side fabric structure 1 and the back side fabric structure 2 without being connected with the connecting yarns 4 as the warp knitted fabric having the knitted fabric parts with the different tightening forces. The area ratio accounting for the connecting part of the face side fabric and back side fabric structures in the double knitted fabric part 3 is 5-70%. The tightening force of the double knitted fabric part 3 is preferably 150-350% of the tightening force of the single knitted fabric part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a warp knitted fabric composed of a double knitted fabric portion and a single knitted fabric portion in which a surface fabric structure and a lining fabric structure are joined by a connecting yarn, and a method for producing the same.

  In recent years, highly functional fabrics aimed at various functions have been developed, and the development of products in various fields has been expanded. One of them is a highly stretchable fabric using elastic yarns such as polyurethane fibers, and these are used in sports and inner fields. These products are products that can reduce discomfort when worn and can provide the necessary tightening force to a necessary part according to the purpose.

  As means for changing the tightening force for each necessary part, Patent Document 1 discloses a method for changing knitting and knitting conditions such as changing the type and fineness of the yarn used and changing the structure, and a method for applying resin to a predetermined portion. And a method of laminating a cloth or a tape-like material in a predetermined place. Patent Document 2 describes a method of removing a predetermined portion by etching.

  The method of changing the weaving and knitting conditions is easy to obtain a tightening force difference and easy to control, but there is a risk that the appearance will be strange by changing the fineness of the yarn, the yarn type, or the structure. There is a risk that the feeling of wear will be worse.

  The method of applying the resin is a method of changing the tightening property of the fabric in the resin applying region, and it is easy to control the tightening force. However, since the resin is applied, the texture of the fabric is likely to be hard and the feeling of wear may be deteriorated. There is. Moreover, there exists a possibility that the air permeability of a resin provision part may fall, and we are anxious about deterioration durability by the cracking of a resin, peeling, etc. by long-time wearing or washing.

The method of laminating the fabric or tape-like material employs a method such as adhesion or sewing, so that it is easy to obtain a difference in tightening force, but there is a risk that the texture will be hardened by the adhesion part or the sewing part. Also. There is also a risk that the laminated fabric or the like may be peeled off. In addition, there are problems such as loss of stretchability at the bonded portion or the sewing portion, or a step or unevenness at the sewing portion, which may cause the skin surface to become anxious.
Japanese Patent Laid-Open No. 09-250008 JP 2000-282377 A

  The present invention has been made in view of the above, and provides a warp knitted fabric having a knitted fabric portion with different tightening force, which has excellent durability and does not impair the feel and wearing feeling. Specifically, a warp knitted fabric comprising a double knitted fabric portion in which the front and back fabric structures are connected with connecting yarns, a single knitted fabric portion comprising either one of the front and back fabric structures, and a warp knitted fabric having elasticity. provide.

  In order to achieve the above object, the present invention has the following configuration.

  One aspect of the present invention is that (1) a double knitted fabric portion in which a surface structure and a lining structure are joined by a connecting yarn, and a ground structure of either the surface structure or the lining structure are removed. A warp characterized by comprising a formed single knitted fabric portion, and an area ratio of a joint portion by a stitch formed by joining the outer fabric structure and the lining fabric in the double knitted fabric portion is 5 to 70%. Knitted fabric.

  Further, (2) the single knitted fabric portion is the warp knitted fabric according to (1) described above, wherein one ground structure of the front and back fabric structures knitted without being connected with the connecting yarn is removed.

  (3) The warp knitted fabric according to (1) or (2), wherein the removal of one ground structure is performed by excision.

  (4) The above-mentioned, wherein the tightening force of the double knitted fabric portion formed by joining the outer fabric structure and the lining fabric structure with the connecting yarn is 150 to 450% of the tightening force of the single knitted fabric portion ( The warp knitted fabric according to any one of 1) to (3).

  Further, (5) knitting a warp knitted fabric having a double knitted fabric portion formed by connecting a surface fabric and a lining fabric with a connecting yarn and a double portion not connected by a connecting yarn, A warp knitted fabric manufacturing method characterized in that a single knitted fabric portion having a lower tightening force than that of the double knitted fabric portion is formed by cutting one of the front and back fabric structures of the double portion that are not connected.

  Further, (6) a cut line portion is formed between the end portion of one of the double-sided front and back fabric structures not joined by the connecting yarn and the end portion of the double-knitted fabric portion. Then, after the knitting, the warp knitted fabric manufacturing method according to the above (5), wherein the warp knitted fabric is cut along the cut line portion and the one ground structure is removed.

  The warp knitted fabric of the present invention is a single knitted fabric formed by removing either the double knitted fabric portion obtained by connecting the outer fabric and the lining fabric with connecting yarns, or the outer fabric or the lining fabric. This is a warp knitted fabric consisting of parts. Therefore, as compared with a fabric that is partially laminated by sewing other fabrics on the knitted fabric that becomes the base fabric, there are no irregularities in the sewing part such as seams, and the stretchability is not impaired at the sewing part. A feeling of wearing does not get worse. Further, unlike the case where another fabric is bonded to the knitted fabric of the base fabric, the texture does not become hard and the stretchability is not impaired. Further, unlike the case of applying resin, there is no decrease in tightening force due to peeling of the resin and the like, and the durability is excellent.

  The present invention relates to a double knitted fabric portion that is knitted integrally by connecting front and back ground structures with connecting yarns, and a single knitted fabric portion formed by removing either the front fabric or the back fabric. This is a warp knitted fabric.

  In the double knitted fabric portion in which the outer fabric structure and the lining fabric are bonded by a connecting yarn, the area ratio of the bonded portion by the stitch formed by bonding the outer fabric structure and the lining fabric is 5 to 70%, Is preferably 10 to 50%. When the area ratio of the joint portion is less than 5%, the joint density of the two knitted fabrics is small, and the front and back fabric structures are likely to shift in the well direction and the course direction, and there is a possibility that the finishing amount of the knitted fabric may become unstable. If it is larger than 70%, the knitted fabric becomes hard, the stretching force is lowered, and the tightening force may be too large.

  The warp knitted fabric having the above-described configuration is a double knitted fabric in which a double-knitted warp knitted fabric having a front and back fabric structure is knitted by a warp knitting machine having two rows of needle beds, and the front and back ground fabrics are connected with connecting yarns. A knitted fabric portion and a double part composed of a surface structure and a lining structure that are not connected by a connecting yarn are integrally knitted, and after knitting, the front and back surfaces of the double part that are not connected by a connecting yarn A structure comprising a double knitted fabric portion and a single knitted fabric portion by cutting off one of the tissues along the outer edge of the double knitted fabric portion joined by a connecting yarn to form a single knitted fabric portion. It is particularly preferable that In other words, as a means for removing one of the front and back fabric structures to form a single knitted fabric portion, various implementations are possible, but as described above, it is composed of a front fabric and a lining fabric that are not connected by connecting yarns. By cutting the end of one ground structure of the double part along the outer edge of the double knitted fabric part, the one ground structure can be removed efficiently, and the appearance of the removal part is also good. Become.

  For example, after knitting a predetermined pattern such as a shirt or pants, a double knitted fabric portion in which the front and back fabric structures are connected by a connecting yarn, and the double knitted fabric portion is integrally knitted and connected by a connecting yarn. A warp knitted fabric composed of a single knitted fabric portion formed by excising one of the front and back fabric structures of a non-double portion is partially composed of two separate knitted fabrics. Compared with the case where the layers are sewn and laminated, there is no unevenness due to the seam of the sewn portion, and the decrease in stretch force is small. Therefore, even when a garment made of this warp knitted fabric is worn, the wearing feeling is less likely to deteriorate.

  The excision method is preferably excised using a known method such as a scissors or a knife, but is not particularly limited.

  In addition, among the front and back fabric structures of the double portion not connected by the connecting yarn, the end portion of one ground structure to be removed is between the end portion of the double knitted fabric portion adjacent thereto. It is preferable that a cut line portion (reference numeral 9 in FIGS. 1 and 2) is formed. As the cut line portion, for example, as shown in the explanatory diagram of FIG. 6, the well W1 at the end of the ground structure that is removed at a required portion (course) with respect to a part of the knitting yarn knitting the ground texture. And a structure knitted so as to form a handing over part 8 across both the well W2 at the end of the double knitted fabric part adjacent thereto, and by cutting the handing over part 8, A tissue capable of easily excising the one ground tissue is preferably used, but is not particularly limited as long as the portion to be excised can be easily confirmed and further excised.

  The tightening force of the double knitted fabric portion is preferably 150 to 450% of the tightening force of the single knitted fabric portion. That is, if the tightening force ratio of the double knitted fabric portion with respect to the single knitted fabric portion is less than 150%, the effect due to the difference in tightening force hardly appears, and if the tightening force ratio is greater than 450%, the feeling of wear is increased. There is a risk that the appearance deteriorates due to deterioration or wrinkles and puckering at the boundary between the single knitted fabric portion and the double knitted fabric portion.

  In addition, the warp knitted fabric of the present invention does not require, for example, changing the structure in the ground structure or changing the thickness of the yarn in order to change the tightening force. There is little variation in the amount, etc., and it can be finished to a predetermined size and pattern, resulting in a knitted fabric with excellent texture and wearing feeling.

  The warp knitted fabric of the present invention is preferably knitted by a knitting machine having two rows of needle beds, and more preferably a knitting machine having a jacquard mechanism.

  Examples of the yarn types that can be used in the warp knitted fabric of the present invention include synthetic fibers such as polyester fibers and nylon fibers, regenerated fibers such as rayon, semi-synthetic fibers such as acetate, natural fibers such as cotton, knitting and wool. Can be used. In the present invention, the knitting can be performed only with the inelastic yarn, but it is preferable that the knitting is performed with the elastic yarn and the inelastic yarn so that the stretchability can be better exhibited. Examples of the elastic yarn that can be used in the present invention include polyester false twisted yarn, polybutylene terephthalate yarn, and polyurethane yarn. Among them, polyurethane yarn is preferably used in terms of stretchability.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic perspective view illustrating a warp knitted fabric of the present invention obtained on the basis of a double knitted structure knitted by a warp knitting machine mainly having two rows of needle beds, and FIG. 2 is a warp knitted fabric of the present invention. FIG. 3 is a schematic explanatory view showing a state before the ground tissue on one side of the knitted fabric is cut off, and FIG. 3 is a schematic explanatory view showing a state where one ground tissue is cut off.

  In FIG. 2, the double knitted fabric part 3 has the front and back ground structures 1 and 2 connected by the connecting yarn 4, and the other parts are not connected by the connecting yarn 4. The state organized as a double part 6 of the state is shown.

  FIG. 3 is a plan view of one of the front and back ground structures 1 and 2 in the double part 6 not connected by the connecting thread 4 in FIG. 2 along the outer edge 5 of the double knitted fabric part 3. FIG. 3 shows a state in which the knitted fabric portion is formed, that is, a state in which the outer fabric 1 is excised and the lining fabric 2 is used as a single knitted fabric portion. In FIG. 1, the surface structure 1 is indicated by an imaginary line.

  The double knitted fabric portion 3 has a structure in which the front and back fabric structures 1 and 2 are connected by a connecting thread 4. In the double knitted fabric portion 3, the area ratio occupied by the connecting yarn 4, that is, the connecting portion by the stitch connected by the connecting yarn 4 in one of the front and back fabrics 1 and 2 in the double knitted fabric portion 3. 5 to 70% of the total area of the double knitted fabric part 3 is preferable, and 10 to 50% is more preferable. When the area ratio of the connecting portion is less than 5%, the binding density of the two knitted fabrics (front and back ground structures 1, 2) is small, and the front and back ground structures 1, 2 are in the well direction and the course direction. If the area ratio of the joint portion is larger than 70%, the knitted fabric becomes hard, the stretching force is reduced, and the binding force is reduced. There is a risk of becoming too large.

  4 and 5 are schematic diagrams of horizontal cross sections showing examples of connection by the connecting yarn 4, and the well direction and the course direction by the connecting yarn 4 of the front and back fabric structures 1 and 2 within the range of the double knitted fabric portion 3. FIG. Represents the density of the connecting portion 7. The connecting yarn 4 for connecting the front and back fabrics 1 and 2 can be connected and knitted with a connecting yarn different from the knitting yarn for knitting the front and back fabrics. Here, the front and back fabrics 1 and 2 are knitted. The knitting yarn to be used is also used for knotting. The area ratio of the connecting portion 7 of the front and back fabric structures 1 and 2 in the double knitted fabric portion 3 can be changed by changing the connecting density in the well direction and the course direction. The connecting state of the connecting portion 7 is not limited to the shape and area shown in FIGS.

  About the connection part 7 of the ground structures 1 and 2 of the front and back, 1-30 course intervals in the well direction (knitting direction), preferably 2-20 course intervals, and 1 to 1 in the course direction (knitting width direction). By performing the binding knitting at intervals of 30 wells, preferably at intervals of 2 to 20 wells, the tightening force of the double knitted fabric portion 3 can be changed.

  If the binding density is higher than 1 course interval or 1 well interval, the knitted fabric may be tightened too much. If the connection density is lower than 30 course intervals or 30 well intervals, sufficient tightening force may not be obtained. There is. This is because there is no knitting yarn or the like that prevents the stretchability and raises the tightening force when the ground structure is a single knitted fabric, but the double knitted fabric portion 3 connected by the connecting yarn 4 Since the connecting yarn 4 is knitted simultaneously on the front and back ground structures 1 and 2, the knitted fabric is thicker and harder than the other knitted fabric parts (single knitted fabric part), and the stretchability of the ground texture part is reduced. This is because the moss may become too large.

  The connection density of the connecting yarns 4 of the double knitted fabric portion 3 can be appropriately set depending on the yarn to be used and the required tightening force. Moreover, the said connection part 7 may be uniformly disperse | distributed and connected within the double knitted fabric part 3 like FIG. 4, FIG. 5, and may be formed in the state unevenly distributed.

  7 and 8 show examples of organization charts of the warp knitted fabric of the present invention. 7 and 8, the front side knitted fabric (surface material 1) is knitted with the knitting needle on the front side F with the knitting yarn introduced by the heel L-2: L-3, and the heel L-5: L This means that the back side knitted fabric (backing structure 2) is knitted with the knitting needle on the front side B with the knitting yarn guided by -4. Of these, FIG. 7 shows an example of the basic knitting structure of the front and back fabric structures 1, 2, and FIG. 8 shows a portion corresponding to the double knitted fabric portion 3 that connects the front and back fabric structures 1, 2 with connecting yarns. An example of a knitting organization is shown. The heel L-3 and heel L-4 are jacquard ridges, and an arbitrary jacquard pattern can be knitted by changing the knitting structure by jacquard control based on the structure of FIG.

  In the knitting of the double knitted fabric portion 3 in the warp knitted fabric of the present invention illustrated in FIG. 1, as shown in the organization chart of the example of FIG. 1 knitting is performed, and the lining structure 2 is knitted with the knitting needle on the back side B with the knitting yarn of the heel L-5. At the same time, the knitting yarn of the heel L-3 is passed over the knitting needle on the back side in the courses F1 and B1, knitted together with the knitting yarn of heel L-4: L-5, and then in the well direction with the knitting yarn of the front side F. In the knitting direction, knitting the surface structure with the knitting yarn of L −２ L-2 over the required course 筬, and then laying it on the knitting needle on the back side in the courses F11, B11, 筬 L-4: L-5 After knitting with the knitting yarn, returning to the front side F knitting needle and knitting the surface structure (front side knitted fabric) with the knitting yarn of the heel L-2 is repeated at an arbitrary course interval (for example, 10 course intervals). Yes.

  As for the knitting yarn of 筬 L-4, similarly to the knitting yarn of 筬 L-3, the knitting yarn is passed over the knitting needle on the back side by a predetermined course F6, B6 on the back side and the knitting yarn of 筬 L-2: L-3 After knitting, the lining structure 2 is knitted together with the knitting yarn of 筬 L-5 over the required number of courses in the well direction (knitting direction) with the knitting needles on the back side B, and then on the front side knitting needles on the courses F16 and B16 After knitting together with the knitting yarn of heel L-2: L-3 after laying over, it is possible to return to the knitting needle on the back side B and knitting the lining structure (back side knitted fabric) with the knitting yarn of the heel L-5. Repeatedly between courses.

  In this way, the knitting yarn of the heel L-3 constituting the surface structure 1 is stretched over the knitting needle on the back side in an arbitrary range in the well direction and knitted together with the knitting yarn of the lining structure 2, and the lining With respect to the knitting yarn of the heel L-4 for knitting the structure 2, the knitting yarn is hanged on the front side knitting needle in an arbitrary range in the well direction and knitted together with the knitting yarn of the surface structure 1, so that each of the knitting yarn spanning portions is knitted. The front and back fabrics 1, 2 can be knitted as a connecting yarn. That is, as the connecting yarn 4 in this embodiment, for the knitting yarn for knitting the front and back ground structures, the knitting yarn spanning part is used when the knitting yarn is knitted to the other ground structure arbitrarily. .

  Further, the double portion 6 composed of the front and back fabrics 1 and 2 not connected by the connecting yarn is knitted without connecting the front and back fabrics 1 and 2 with reference to the organization of FIG. Then, one of the surface material 1 and the surface material 2 of the double part 6 is cut off along the outer green 5 of the double knitted material part 3 after knitting, so that the other ground material remaining is It is formed as a single knitted fabric part. Thereby, the tightening force of the single knitted fabric portion is smaller than the tightening force of the double knitted fabric portion 3.

  Therefore, as described above, the double knitted fabric portion 3 obtained by connecting and knitting the front and back ground structures 1 and 2 with the connecting yarn 4 has a stronger tightening force than the single knitted fabric portion including only one of the front and back fabric structures. Thus, a warp knitted fabric in which the double knitted fabric portion 3 and the single knitted fabric portion having different tightening forces coexist in the fabric can be obtained. In particular, it is possible to easily obtain a warp knitted fabric in which the tightening force of the double knitted fabric portion 3 is 150 to 450% of the tightening force of the single knitted fabric portion.

  In the knitting of the front and back knitted fabrics by the front and back fabric structures 1 and 2, the double knitted fabric portion 3 in the present invention arbitrarily connects the knitting yarn of the front and back knitted fabrics to the other knitted fabric of the front and back, A knitted fabric portion obtained by excising one of the knitted fabrics of the front and back fabric structures of the double part that is not knitted in a pattern after being knitted into a pattern, the front and back fabrics in the pattern It is a knitted fabric portion in which the structure is joined at appropriate intervals in the well direction and the course direction.

  In the knitting of the double knitted fabric portion, the shape and configuration can be appropriately set according to the application, and the shape and size of a quadrangle, triangle, rhombus, ellipse or the like can be selected and set as appropriate.

  It is preferable that the outer edge of the double knitted fabric portion 3 and the ground structure to be removed are knitted structures that are easily cut off. Preferable knitting structures include a knitting structure that can be distinguished from other knitted fabric parts, such as a lattice structure. In addition, as described above, if the cut line portion 9 is formed by the spanning portion 8, the excision work is facilitated.

  Although the tightening force varies depending on the application, etc., the tightening force of the single knitted fabric portion having a weak tightening force and the double knitted fabric portion having a strong tightening force is 20 to 400 cN. More preferably, the tightening force ratio of the heavy knitted fabric portion is 150 to 450%.

  The thickness of the fabric is preferably 0.3 to 1.0 mm for the single knitted fabric portion and 0.7 to 3.0 mm for the double knitted fabric portion, and the thickness of the single knitted fabric portion and the double knitted fabric portion. The difference is particularly preferably 0.2 to 1.0 mm. If it is within these ranges, it is thin, lightweight, good fit, good breathability, does not impair mobility, and does not impair the silhouette due to unsightly irregularities when worn etc. This is preferable. Of course, implementation outside the above range is also possible depending on the application.

  EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples. The evaluation method is shown below.

[Measurement of tightening force]
Using an Instron universal tensile tester ("Autograph AG-500D" manufactured by Shimadzu Corporation) for a sample with a width of 2.5 cm and a length of 16 cm, an upper grip 2.5 cm, a lower grip 3.5 cm, and a tensile interval 10 cm, Stretching recovery up to 80% of the sample length (grip interval) at a pulling speed of 300 ± 20 mm / min is repeated three times, and the average value of the values at the time of 30% extension and recovery at the third extension recovery is the tightening force. It was.
This measurement method measures the tightening force in both the material warp direction and the material weft direction.

[A feeling of wearing per skin]
Shirts were created from the samples of the examples and comparative examples, an actual wearing test was carried out, and the feeling of wearing was evaluated in three stages centering on the feeling per skin.
○ The difference in thickness between the single knitted fabric portion and the double knitted fabric portion was 1 mm or less, and there was no feeling per skin.
Δ: The difference in thickness between the single knitted fabric portion and the double knitted fabric portion is larger than 1 mm, but the feeling per skin is weak.
X The difference in thickness between the single knitted fabric portion and the double knitted fabric portion is larger than 1 mm, and the feeling per skin is strong.

[Wearing feel]
Shirts were created from the samples of the examples and comparative examples, an actual wearing test was performed, and the feel was subjected to sensory evaluation.
○ Soft △ Normal × Hard

[Wash durability appearance]
According to JIS L1018 A method, the external appearance change after washing 100 times was evaluated.
○ There is no wrinkle or resin peeling.
Δ: There are weak wrinkles or weak resin peeling.
X There is strong wrinkle or strong resin peeling.

[Washing durability tightening force]
The tightening force was measured using the sample after washing.
○ There is no decrease in tightening force (decrease rate 0 to less than 10%)
△ There is a decrease in tightening force (decrease rate of less than 10-20%)
× Tightening force is significantly reduced (decrease rate of 20% or more)

[Wear durability]
A test piece of 9.0 × 20.0 cm was prepared and set in a dematcher type stretchable fatigue tester so that the grip interval was 10.0 cm and the elongation rate was 100%, and the reciprocating speed was 7500 times at a rotation speed of 200 times / minute ( (Approximately 40 minutes) Move horizontally and repeat expansion and contraction to make a sample after the durability test.
A test piece of 2.5 × 16.0 cm including a portion where the extension is repeated from this sample is prepared, and fixed to a constant speed extension tensile tester at a spacing of 10.0 cm and an air pressure of 490 kpa. The sample was pulled at a speed of 30 cm / min, and the elongation at a load of 9.8 N, 14.7 N, 22.1 N was measured, and an average value was obtained as a tightening value. In addition, the specimens not subjected to the durability test were measured in the same manner to obtain the tightening value. The decrease rate of the tightening force after the wearing durability test was determined from each tightening value.

[Example 1]
Using a double russell machine (RDPJ6 / 2N-24E manufactured by Meyer), using 56dtex24f polyester yarn for the knitting yarn of the front side L-2 and the back side L-5, the front side L -3 and back side L-4 are covered yarns of 44 dtex32f polyester yarn and 44 dtex polyurethane elastic yarn with single covering under the condition of a covering number of 500 T / m. Knitting a chain knitting, and the heel L-3 on the front side is alternately knitted across one stitch left and right (shifting to the adjacent knitting needle), and the heel L-4 on the back side is alternately left and right. A knitting process based on knitting between two stitches (moving to two adjacent knitting needles), and a double knitted fabric portion in which the front and back fabric structures are connected with a connecting yarn with a connecting ratio of 10%, and a connecting yarn. Double part not connected After knitting a warp knitted fabric and finishing processing such as heat setting, the outer surface texture of the double part not connected with the connecting yarn is changed to the outer green of the double knitted fabric part connected with the connecting yarn. A warp knitted fabric composed of a double knitted fabric portion and a single knitted fabric portion was obtained. The evaluation results are shown in Table 1.

[Example 2]
Using a double raschel machine (RDPJ6 / 2N-24E manufactured by Meyer), 56dtex24f polyester yarn is used as the knitting yarn of the front side L-2 and the back side L-5, and the front side L- 3 and the back heel L-4 were knitted in the same manner as in Example 1 using a covered yarn obtained by single-covering a 44 dtex 32f polyester yarn and a 44 dtex polyurethane elastic yarn under the condition of a covering number of 500 T / m. After knitting a warp knitted fabric composed of a double knitted fabric portion in which the backing structure is connected with a connecting yarn at a binding ratio of 60% and a double portion that is not connected, and after finishing, the outer surface of the double portion The structure was excised along the outer green part of the double knitted fabric part to obtain a warp knitted fabric composed of a double knitted fabric part and a heavy knitted fabric part. The evaluation results are shown in Table 1.

[Comparative Example 1]
Using a double raschel machine (RDPJ6 / 2N-24E manufactured by Meyer), 56dtex24f polyester yarn is used as the knitting yarn of the front side L-2 and the back side L-5, and the front side L- 3 and the back heel L-4 were knitted in the same manner as in Example 1 using a covered yarn obtained by single-covering a 44 dtex 32f polyester yarn and a 44 dtex polyurethane elastic yarn under the condition of a covering number of 500 T / m. Knitting a warp knitted fabric composed of a double knitted fabric part with a connecting yarn of 75% and a non-bonded double part, and after finishing, the double part surface structure Was cut along the outer green of the double knitted fabric portion to obtain a warp knitted fabric comprising a double knitted fabric portion and a single knitted fabric portion. The evaluation results are shown in Table 1.

[Comparative Example 2]
A single knitted fabric by tricot knitting was obtained using nylon 44 dtex and polyurethane 78 dtex. A synthetic resin was printed on the fabric with a screen printing machine, and a portion of the product requiring a tightening force was printed in an arbitrary shape to obtain a knitted fabric having a portion corresponding to the double portion with a high tightening force. The evaluation results are shown in Table 1.
[Comparative Example 3]
The polyester cationic dyeable yarn 56dtex34f and the polyurethane elastic yarn 44dtex were used for knitting to obtain a 28G tricot fabric made of a single knitted fabric. Separately from this, nylon 44 dtex 26f and polyurethane elastic yarn 155 dtex (satin net fabric) were used to obtain a power base fabric made of a single knitted fabric.

After cutting the power base fabric to an arbitrary size, the base base fabric is stitched and laminated with a cut surface, and consists of a double knitted fabric portion by superimposing both base fabrics and a single knitted fabric portion of the base base fabric alone. The desired knitted fabric was obtained. The evaluation results are shown in Table 1.

  As is clear from Table 1 above, both Examples 1 and 2 improve selective durability without deteriorating the feeling of wearing, such as skin contact and texture, as compared with Comparative Example 1-3. did it.

  The warp knitted fabric of the present invention and the method for producing the same are a high-performance fabric aimed at functions such as improvement of motor functionality, fatigue recovery function, fatigue reduction function, body shape correction, or body shape correction, particularly in the sports and inner fields. It can utilize suitably for a fabric.

1 is a schematic perspective view illustrating a warp knitted fabric of the present invention obtained based on a double knitted structure. It is a schematic explanatory drawing which shows the state before excising the ground structure | tissue of the front and back one side of the same kind knitted fabric. It is a schematic explanatory drawing of the state which excised the ground organization of the front and back one side of the same warp knitted fabric. It is the schematic of the horizontal cross section which shows the ratio for which the connection part by the connection yarn of a double knitted fabric part accounts. It is the schematic of the horizontal cross section which shows the ratio for which the connection part by the connection yarn of a double knitted fabric part accounts. It is explanatory drawing of the crossing part used as a cut line part. It is an organization chart showing an example of the ground organization which constitutes the warp knitted fabric of the present invention. It is an organization chart which shows an example of the double knitted fabric part which comprises the warp knitted fabric of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... (Front) ground structure 2 ... (Back) ground structure 3 ... Double knitted fabric part connected with connecting yarn 4 ... Connecting yarn 5 ... Outer edge of double knitted fabric part 6 ... Connected with connecting yarn No double part 7 ... Connection part 8 ... Landing part 9 ... Cut line part

Claims (6)

  It consists of a double knitted fabric portion in which the outer fabric and lining fabric are connected by a connecting yarn, and a single knitted fabric portion formed by removing either the outer fabric or the lining fabric. The warp knitted fabric is characterized in that the area ratio of the connecting portion by the stitch formed by connecting the outer fabric structure and the lining organization in the double knitted fabric portion is 5 to 70%.   The warp knitted fabric according to claim 1, wherein the single knitted fabric portion is formed by removing one ground structure of the front and back fabric structures that are knitted without being connected by the connecting yarn.   The warp knitted fabric according to claim 1 or 2, wherein one ground structure is removed by excision.   The tightening force of the double knitted fabric portion formed by joining the outer fabric and the lining fabric with connecting yarns is 150 to 450% of the tightening force of the single knitted fabric portion. The warp knitted fabric according to item 1.   A warp knitted fabric having a double knitted fabric portion formed by connecting a surface fabric structure and a lining fabric with a connecting yarn and a double portion not connected by a connecting yarn is knitted and is not connected by a connecting yarn. A method for producing a warp knitted fabric, characterized in that a single knitted fabric portion having a tightening force weaker than that of the double knitted fabric portion is formed by cutting one of the front and back fabric structures of the double portion.   A cut line portion is formed between the end portion of one of the front and back fabric structures of the double portion not connected with the connecting yarn, and the end portion of the double knitted fabric portion, 6. The method for producing a warp knitted fabric according to claim 5, wherein after the knitting, the warp knitted fabric is cut along the cut line portion to remove the one ground structure.

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