JP2003183957A - Three-dimensional knitted fabric having unevenness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional knitted fabric having unevennesses, air permeability and cushioning properties especially suitable as an automotive sheet and eliminating a sticky feeling and stinking during perspiration. <P>SOLUTION: This three-dimensional knitted fabric having the unevennesses comprises front and back ground structures and interconnecting yarns connecting the ground structures. In the knitted fabric, at least one surface of the front and back ground structures has uneven parts with protruding parts and recessed parts having a great level difference. In the protruding parts, ground yarns are traversed at a suitable interval so that curved shapes having a distinct cross-sectional curvature can be formed. In the recessed parts, the ground yarns are cast off at a suitable interval so that the recessed parts have an opening. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional knitted fabric having irregularities, and more particularly to a three-dimensional knitted fabric having irregularities capable of eliminating stickiness and discomfort during sweating.

[0002]

2. Description of the Related Art A three-dimensional knitted fabric composed of front and back ground fabrics and connecting yarns that connect the two-dimensional fabrics has excellent resilience, cushioning properties,
It is used in various fields due to its breathability. In the field of clothing, it is used as general clothing, sports clothing and inner clothing, and in the field of interior materials, it is widely used as cushioning materials for automobile seats, chairs, beds and the like. By providing unevenness on the surface of the three-dimensional knitted fabric, the area in contact with the skin is reduced, and the breathability and the feel of the skin can be improved.

Several methods have been proposed for forming irregularities on the surface of a woven or knitted material. For example, in Patent Document 1, a high-pressure liquid flow is applied to the woven or knitted material to form a unease-shaped stripe pattern. Further, in Patent Document 2, a pattern is formed by heating and pressing the knitted fabric with a calendar roll or the like. In addition, a method of forming a three-dimensional pattern by heat treatment using a heat shrinkable yarn has been proposed (Patent Documents 3 and 4).

However, it is difficult to maintain the shape of the sea urchin by the high pressure liquid flow for a long period of time, and in the method of hot pressing, the texture is deteriorated because the knitted fabric is crushed or the surface is hardened. The method using the heat-shrinkable yarn has a problem that the difference in height is small and the unevenness is poor. There is known a method of forming irregularities by a knitting structure, not by such post-treatment. For example, Patent Document 5 discloses a method of forming a concavo-convex structure by mesh knitting, needle punching, and tuck knitting. Further, Patent Document 6 proposed by the present inventors discloses a method for forming unevenness by adjusting the swing width of a yarn using two yarns having different thicknesses when knitting a knitted fabric.

However, although these methods certainly provide a concavo-convex structure, since the height difference between the concavities and convexities is small and the contact area of the convex part with the skin is still large, it is applied particularly as an automobile seat, for example, in the midsummer. It is not enough to eliminate the sticky feeling and stuffiness when sitting for a long time.

[0006]

[Patent Document 1] Japanese Patent Publication No. 1-40135

[Patent Document 2] Japanese Patent Laid-Open No. 4-146246

[Patent Document 3] JP-A-4-222260

[Patent Document 4] Japanese Patent Laid-Open No. 4-327259

[Patent Document 5] JP-A-9-137380

[Patent Document 6] Japanese Patent Laid-Open No. 2001-11757

[0007]

DISCLOSURE OF THE INVENTION The present inventors have solved the above problems by combining a specific ground structure knitting method and a ground structure knitting structure, and when used as an interior material, have breathability and cushioning. It has been found that a three-dimensional knitted fabric having excellent properties can be provided, and the present invention has been completed. That is, the present invention, particularly when used for automobile seats, chairs, beds, etc., is lightweight, has high voids, high compression elasticity, high breathability, has a soft touch, and has a feeling of stuffiness and sweat when used for a long time. An object of the present invention is to provide a three-dimensional knitted fabric having a comfortable structure having unevenness.

[0008]

MEANS FOR SOLVING THE PROBLEMS AND EFFECTS OF THE INVENTION The present invention, which has been made possible to achieve the above-mentioned object, is a three-dimensional knitted fabric composed of front and back ground fabrics and connecting yarns for connecting the ground fabrics as described in claim 1. In the above, the ground texture is formed on at least one surface of the front and back so as to have a large uneven portion having a height difference, and the convex portion is shaken at appropriate intervals so that a curved shape having a clear sectional curvature can be formed, In addition, the concave portion is characterized in that an opening portion is formed in which the ground yarn is pulled out at appropriate intervals.

According to the present invention, by forming at least one of the front and back ground textures as described above, a concavo-convex structure having a large height difference can be formed on at least one of the front and back surfaces of the three-dimensional fiber structure, and the protrusions can be clearly defined. It can be formed in a curved shape having a cross-sectional curvature, and the recess can have a mesh structure with openings. By doing so, the non-opening section of the ground structure has a rounded shape, the contact area with other objects is reduced, and the air permeability can be greatly improved. That is, since the area of contact with the skin is small, the skin feels good, and the sticky feeling is eliminated even if sweat is applied, and the discomfort can be eliminated particularly when applied to a vehicle seat. Further, the volume of the curved non-opening portion serving as the convex portion is increased, so that the three-dimensional knitted fabric is excellent in cushioning property and compression resistance.

Further, as described in claim 2, the ground yarn constituting the ground structure of at least one surface of the front and back has a swing width of 3 to 7
A needle is more preferable for achieving the effect of the present invention according to the structure of claim 1. Further, in the three-dimensional knitted fabric having irregularities of the present invention, as described in claim 3, it is preferable that the fineness of the ground yarn is 150 to 550 decitex in order to exert the effect of the present invention.

In the three-dimensional knitted fabric having irregularities according to the present invention, it is preferable that the ground yarn is made of polyester fiber in order to obtain the effects of the present invention. Further, the three-dimensional knitted fabric having irregularities of the present invention is particularly preferably applied to an automobile seat.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention can be knitted, for example, by using a warp knitting machine such as a six-blade double Russell machine as shown in FIG. The knitting yarn that has passed through the reed L1 and the reed L2 has a ground structure on one surface (front surface or back surface) of the reed L5,
The knitting yarn that has been threaded through the reed L6 forms the ground structure of the other surface (back surface or front surface) of the front and back. These front and back ground fabrics are connected by the knitting yarns through which the yarns of the reed L3 and the reed L4 are connected to form a three-dimensional fiber structure. This reed L5, L6 (or L
(1), (L2) the width of the ground yarn is within a predetermined range, and the ground yarn is knitted by removing the yarn at an appropriate interval, and the ground fabric has a structure having an opening, that is, a mesh structure. It is possible to form the ground texture on at least one surface of the front and back so as to have uneven portions having large height differences, and to form the convex portions in a curved shape having a clear sectional curvature. In FIG. 1, 1 and 2 are knitting needles (needles) of front and rear needle beds, 3
Is a trick plate of the front and rear needle beds, 4 is a stitch comb on the front side and the back side, and 5 is a distance between the hooks.

The front and back fabrics and the material of the connecting yarn are not particularly limited and may be selected according to the application. However, when used as an interior material, polyester fiber is used because of its abrasion resistance. preferable. The three-dimensional fiber structure represented by double russell is composed of front and back fabrics and connecting yarns that connect them, and since it has voids inside the fiber structure, it has originally excellent air permeability. is there. Further, by providing unevenness with a large height difference on the surface, it becomes difficult to adhere to the skin, the air permeability is improved, and the effect of eliminating stuffiness, stickiness and the like becomes more remarkable.

The unevenness may be formed on either one of the front and back ground structures, and it is essential that at least the skin side (the surface in contact with the skin) has the uneven structure. The same applies when used for automobile seats, chairs, beds, etc., and the skin side has an uneven structure. In the present invention, it is preferable to set the swing width of the ground yarn of the ground structure within a predetermined range, and the ground yarn is knitted by removing the yarn at appropriate intervals to form more various irregularities. Is characterized by. When the swing width of the ground yarn is increased, a plurality of ground yarns are overlapped at that portion, and the number of the overlapping ground yarns is increased as the swing width is increased. Then, a force (T) for pulling to the center of the convex portion A as shown in FIG.
Occurs, and the ground yarn is knitted by removing the yarn at an appropriate interval, so that a reaction force (not shown) for canceling the tension (T) does not occur, so that the convex portion A is formed. . A recess B is formed between the protrusions A and A.

FIG. 2 is a diagram showing the swing width and the formation of the convex portion in more detail. A) represents a three-dimensional knitted fabric in which the ground yarn forming the sinker loop has a three-needle swing, and B) represents a six-needle three-dimensionally structured knit. When the swing width is increased, the overlap of the sinker loops is increased, and the thickness of the ground structure is increased as shown in the figure, so that it is possible to obtain a three-dimensional structure knitted fabric having a more raised curvature and a large curvature.
C) represents a three-dimensional structure having eight needles. By increasing the swing width, the thickness of the ground structure becomes thicker, but the overlap of sinker loops increases and the movement is restricted,
Since it becomes difficult to form a curvature and the curvature is formed only in a portion where there is little overlap, as shown in the figure, the ground structure is thick and a three-dimensional structure having a small curvature is likely to be formed. Thus, the unevenness can be expressed by setting the swing width of the ground yarn within a predetermined specific range, and by knitting the ground yarn by pulling out the yarn at appropriate intervals.

As for the swing width of the ground yarn, since it is possible to obtain large unevenness of height difference and a curved shape having a clear sectional curvature, how many needles the ground yarn is shaken depends on the characteristics of the ground yarn. Although it is important to select, it is usually preferable to use 3 to 7 needles as described above, and to obtain a more comfortable and comfortable three-dimensional knitted fabric, 3 to 6 needles may be used. preferable. Normally, if the swing width is 2 stitches or less, the thickness of the ground yarn does not appear and the convex portion A cannot be formed, and if the swing width is 8 stitches or more, it is difficult to obtain the curvature of the convex portion for the reason described above. , It is difficult to obtain a comfortable three-dimensional fiber structure. Thus, by setting the swing width of the ground thread within a certain range, it is possible to stably express a three-dimensional uneven pattern.

In the present invention, the three-dimensional fiber having a large cross-section curvature for the convex portion A by swinging the ground yarn within a predetermined range and by knitting the ground yarn at appropriate intervals to form a mesh structure which is an opening. A structure can be obtained. FIG. 3 shows a cross-sectional view of a three-dimensional knitted fabric having a ground structure in which the ground yarn is knitted within a predetermined range, but the ground yarn is knitted without spacing. Further, FIG. 3 shows a cross-sectional view of the three-dimensional knitted fabric of the present invention. As can be seen by comparing these, in the three-dimensional knitted fabric, since the ground yarns are knitted without spacing, the tension (T) that creates the curvature is canceled by the reaction force, and therefore the uneven height is It is absorbed by the tissue and the height difference disappears.

Further, FIG. 3 shows a cross-sectional view of a pseudo three-dimensional knitted fabric having a mesh structure. As compared with the cross-sectional view of the present invention, it can be seen that the conventional three-dimensional knitted fabric has almost the same opening width, but the ground contact area is extremely large. That is, in the three-dimensional knitted fabric of the present invention, since the convex portion A has a curved shape with a large cross-sectional curvature, the contact area with other objects can be reduced and the contact area with the skin can be reduced. In addition, since the openings C, which are meshes formed by thread removal, are formed in the convex portions A and the concave portions B having a large height difference, the air permeability is further improved. The compression resistance is improved by increasing the number of connecting yarns included in the unit area.

4 and 5, in order to form the concave portion B and the protruding portion A shown in FIG. 3, the reeds L5 and L6 for waving the ground yarn and knitting the yarn in the range specified above are also used. Are shown as L5 and L6, and an opening C which is a mesh portion due to overlapping of threads and thread removal is illustrated. Here, the method of knitting the three-dimensional knitted fabric of the present invention will be described in detail. FIG. 6 is a perspective view showing the three-dimensional knitted fabric of the present invention.

FIG. 8 schematically shows how the needle loop bulges to form a three-dimensional structure having a height difference. Here, the movement and tension of the sinker loop and needle loop are shown. The bulging amount of the needle loop (height of the convex portion) largely depends on the distance between the kink sinker loops and the thickness of the knitted yarn. In other words, the longer the distance to knit the sinker loop, the stronger the tension,
The needle loop is pulled toward the center of the opening ground texture portion and strongly bulged.

The sinker loop is located below the needle loop, and when the sinker loop extends over three or more stitches, the threads overlap with three, four, and so on, and the needle loop is largely swollen to increase the height difference as a whole. . In this way, by setting the swing width of the ground yarn constituting the ground structure within a certain range and by forming the ground structure into a mesh structure, a three-dimensional knitted fabric having a surface uneven structure having a height difference is obtained. The uneven three-dimensional knitted fabric of the present invention,
It is characterized in that the cross-sectional shape of the convex portion is curved in an arc. FIG. 9 is a diagram showing a shape when a pressure due to a load is applied to the three-dimensional structure knitted fabric. In the conventional three-dimensional structure knitting, when a pressure is applied to the connecting yarn that cannot be fully supported, the voids almost disappear, but in the three-dimensional structure knitting of the present invention, the non-opening portion has curvature and thickness. As a result, even if the connecting yarn is crushed, a certain amount of void can be maintained, so that a passage for air can be formed, and the knitted fabric is a three-dimensional structure that is comfortable and stuffy.

The fineness of the ground yarn is preferably 150 to 550 decitex in terms of thickness, air permeability and rigidity. If it is less than 150 decitex, it is difficult to obtain unevenness having height difference, and if it exceeds 550 decitex, there is a problem in terms of touch. In addition, the gauge of the knitting machine is 1 from the viewpoints of thickness, breathability and rigidity.
It is preferably 6 to 30 gauge / inch.

By making the surface uneven as described above,
The area that comes into close contact with the skin is reduced, and the sticky feeling is suppressed. Furthermore, since a new void is generated between the skin and the fiber, the air permeability is further improved. In order to improve the feel of the fabric, in the present invention, the surface fabric may be further raised or buffed so that only the convex portions are fluffed to obtain a suede-like knitted fabric having a three-dimensional pattern.

The three-dimensional fiber structure having irregularities of the present invention is
Taking advantage of its excellent breathability, softness, and cushioning properties, it can be used for bedding such as sheets and beds, interior materials such as automobile seats and chairs, and is also applicable to a wide variety of other applications. Examples will be described below, but the present invention is not limited to these and can be applied to any form.

[0025]

Example As a warp knitting machine, a double russel knitting machine RD6DPLM-22G manufactured by KARL MAYER was used. Figure 11
The yarns L1 to L6 in FIG. 18 represent the respective yarns of the reeds L1 to L6. Evaluation method <Breathability> The test was performed according to JIS L1018 6.34 Breathability test method.

The evaluation was as follows. Unit: cc / sec / cm ² × to 200 Δ 200 to 220 ○ 220 to <ground contact area ratio> The test cloth was cut into a size of 7 cm × 7 cm. After a stamp ink (Shachihata stamp stand) was uniformly attached to the surface (opening surface), a blank sheet was placed. From above, 5 kg of a cylindrical weight having a diameter of 7 cm was placed and left for 10 seconds. After that, the white paper was removed from the test cloth, the size of the cloth was adjusted to 5 cm × 5 cm, and the area of the ink adhering to the white paper (ground area) was measured. The area was measured by reading a paper prepared in a size of 5 cm × 5 cm into a personal computer with a scanner, binarizing the colors of the ink and the white paper, and integrating the dots of the ink color by integration.
The contact area ratio was calculated using the following formula.

Contact area ratio (%) = ink adhering area / blank paper area × 100 The evaluation is as follows. × 30% to Δ 20% to 30% ○ to 20% <Thickness retention> The test cloth was sized 7 cm x 7 cm, and four sheets were stacked so that the change in thickness could be easily understood.
A 5 kg columnar weight having a diameter of 7 cm was placed thereon, and left in this state at 100 ° C. for 2 hours so that the thickness could easily change. Two hours later, the thickness immediately after the weight was removed was taken as the thickness T2 after the test, and the thickness before mounting the weight was taken as T1 to obtain a thickness retention rate (%) = T2 / T1 × 100.

The evaluation was as follows. × to 70% Δ 70% to 90% ○ 90% to <Mouret feeling> A seat cover was made from the test cloth and covered on the car seat. Insert a humidity measuring instrument between the seat of the person (subject) sitting on the seat and the seat, and set the room temperature to 25 ° C and the humidity to 6
Humidity was measured when sitting for 1 hour in an environment of 0% RH. The value is an average value of 5 subjects, and the position of the humidity measuring device is as shown in FIG.

The evaluation was as follows. × 70% ~ △ 50% to 70% ○ ~ 50%

[0030]

Example 1 A three-dimensional knitted fabric was produced based on the design shown in FIG. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used, and the fineness of the ground yarn on the uneven side was 167 decitex. The opening surface side ground fabric was arranged in yarns of L-5 and L-6, and the swing width of the opening surface side ground yarn was set to 3 needles. The obtained three-dimensional fiber structure is preset at 190 ° C. for 1 minute, then dyed at 130 ° C., dried, and finish-set at 150 ° C. for 1 minute to obtain a total thickness of 1.8 mm, a knitting density of 38 courses / inch, A curved three-dimensional fiber structure having a clear sectional curvature in the convex portion of 24 wale / inch was obtained. The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0031]

Example 2 A three-dimensional knitted fabric was produced based on the design shown in FIG. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used and the fineness of the ground yarn on the uneven side was 330 decitex. The opening surface side ground fabric was arranged in yarns of L-5 and L-6, and the swing width of the opening surface side ground yarn was set to 3 needles. The obtained three-dimensional fiber structure is preset at 190 ° C. for 1 minute, then dyed at 130 ° C., dried, and finish-set at 150 ° C. for 1 minute to obtain a total thickness of 2.2 mm, a knitting density of 38 courses / inch, A curved three-dimensional fiber structure having a clear sectional curvature in the convex portion of 24 wale / inch was obtained. The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0032]

Example 3 A three-dimensional knitted fabric was produced based on the design shown in FIG. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used and the fineness of the ground yarn on the uneven side was 330 decitex. The opening surface side ground fabric was arranged in yarns of L-5 and L-6, and the swing width of the opening surface side ground yarn was 4 needles. The obtained three-dimensional fiber structure is preset at 190 ° C. for 1 minute, then dyed at 130 ° C., dried, and finish-set at 150 ° C. for 1 minute to obtain a total thickness of 2.7 mm, a knitting density of 38 courses / inch, A curved three-dimensional fiber structure having a clear sectional curvature in the convex portion of 24 wale / inch was obtained. The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0033]

Example 4 A three-dimensional knitted fabric was produced based on the design shown in FIG. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used and the fineness of the ground yarn on the uneven side was 330 decitex. The opening surface side ground fabric was arranged in yarns of L-5 and L-6, and the opening surface side ground yarn had a swing width of 6 needles. The obtained three-dimensional fiber structure is preset at 190 ° C. for 1 minute, then dyed at 130 ° C., dried, and finish-set at 150 ° C. for 1 minute to obtain a total thickness of 3.1 mm, a knitting density of 38 courses / inch, A curved three-dimensional fiber structure having a clear sectional curvature in the convex portion of 24 wale / inch was obtained. The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0034]

Comparative Example 1 Based on the design shown in FIG. 15, a three-dimensional knitted fabric was prepared. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used and the fineness of the ground yarn on the uneven side was 330 decitex. The surface ground fabric was a plain fabric, and the fabric was arranged with yarns L-5 and L-6 of the ground yarn, and the swing width of the plain fabric without thread removal was 3 needles. The obtained three-dimensional fiber structure is 190
After presetting at ℃ for 1 minute, dyeing at 130 ℃, drying, finish setting at 150 ℃ for 1 minute, total thickness 1.9m
A three-dimensional fiber structure having a m, knitting density of 38 courses / inch, and 24 wales / inch was obtained. The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0035]

Comparative Example 2 Based on the design shown in FIG. 16, a three-dimensional knitted fabric was prepared. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used and the fineness of the ground yarn on the uneven side was 330 decitex. The opening surface side ground fabric was arranged in a yarn arrangement of L-5 and L-6, and the opening surface side ground yarn had a swing width of 8 needles. The obtained three-dimensional fiber structure is preset at 190 ° C. for 1 minute, then dyed and dried at 130 ° C., finish-set at 150 ° C. for 1 minute, the total thickness 3.3 mm, the knitting density 38 courses / inch, A 24 wales / inch solid fiber structure was obtained.
The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0036]

[Comparative Example 3] A three-dimensional knitted fabric was produced based on the design shown in FIG. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used, and the fineness of the ground yarn on the mesh side was 167 decitex. The opening surface side ground fabric was arranged in yarns of L-5 and L-6, and the swing width of the opening surface side ground yarn was set to 1 needle. The obtained three-dimensional fiber structure is preset at 190 ° C. for 1 minute, then dyed and dried at 130 ° C., finish-set at 150 ° C. for 1 minute, total thickness 1.3 mm, knitting density 38 courses /
An inch, 24 wales / inch solid fiber structure was obtained. The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0037]

[Comparative Example 4] A three-dimensional knitted fabric was produced based on the design shown in FIG. Both the ground yarn and the connecting yarn are made of polyester 10
0% was used, and the fineness of the ground yarn on the mesh side was 167 decitex. The opening surface side ground fabric was arranged in yarns of L-5 and L-6, and the swing width of the opening surface side ground yarn was set to 1 needle. The obtained three-dimensional fiber structure is preset at 190 ° C. for 1 minute, then dyed at 130 ° C., dried, and finish-set at 150 ° C. for 1 minute to give a total thickness of 2.7 mm and a knitting density of 38 courses /
An inch, 24 wales / inch solid fiber structure was obtained. The obtained three-dimensional fiber structure was evaluated according to the above evaluation method. The results are shown in Table 1.

[0038]

[Table 1]

[Brief description of drawings]

FIG. 1 is a schematic view showing a main part of a knitting of a double Russell machine.

FIG. 2 is a cross-sectional view showing a three-dimensional knitted fabric of the present invention.

FIG. 3 is a schematic diagram comparing the present invention with a conventional technique.

FIG. 4 is a structural diagram of the ground yarn on one side of the front and back according to the present invention.

FIG. 5 is a three-dimensional structure diagram of the ground yarn on the front and back surfaces according to the present invention.

FIG. 6 is a perspective view showing a three-dimensional knitted fabric of the present invention.

FIG. 7 is a schematic view showing a knitting example of the present invention.

FIG. 8 is a schematic diagram for explaining swelling of the ground structure.

FIG. 9 is a schematic diagram showing a deformed state due to a load.

FIG. 10 is a schematic diagram illustrating measurement of stuffiness.

FIG. 11 is a diagram showing the structure of Example 1.

FIG. 12 is a diagram showing a structure of Example 2.

FIG. 13 is a diagram showing the structure of Example 3;

FIG. 14 is a diagram showing a structure of Example 4.

15 is a diagram showing the structure of Comparative Example 1. FIG.

16 is a diagram showing a structure of Comparative Example 2. FIG.

17 is a diagram showing the structure of Comparative Example 3. FIG.

FIG. 18 is a view showing the structure of Comparative Example 4.

[Explanation of symbols]

L1 to L6 reeds (Fig. 1) L5, L6 Ground yarn on one side L1, L2 Ground thread on the other side L3, L4 connecting thread A convex part B recess C mesh opening

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Sachito Kaneko             1-10-1 Koya, Fukui City, Fukui Prefecture Sale             Within the corporation F term (reference) 4L002 AA07 AC07 CA01 CA03 CB01                       CB02 DA01 DA04 EA00 EA02                       FA06

Claims (5)

[Claims] 1. A three-dimensional knitted fabric consisting of front and back ground fabrics and connecting yarns that connect the ground fabrics, wherein at least one front and back ground fabrics are formed to have large unevenness of height difference, and a convex section has a clear cross section. It is characterized in that the ground yarn is shaken at an appropriate interval so that it can be formed into a curved shape having a curvature, and the recess is provided with an opening portion in which the ground yarn is removed at an appropriate interval. A three-dimensional knitted fabric with irregularities. 2. The three-dimensional knitted fabric having irregularities according to claim 1, wherein the ground yarn constituting at least one surface of the front and back surfaces has a swing width of 3 to 7 needles. 3. The three-dimensional knitted fabric having irregularities according to claim 1, wherein the fineness of the ground yarn is 150 to 550 decitex. 4. The three-dimensional knitted fabric having irregularities according to claim 1, wherein the ground yarn is made of polyester fiber. 5. The three-dimensional knitted fabric having irregularities according to claim 1, which is applied to an automobile seat.