JP3273249B2 - Three-dimensional fiber structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a three-dimensional fiber structure, and more particularly to a three-dimensional fiber structure having improved sewing properties.

[0002]

2. Description of the Related Art A three-dimensional fiber structure comprising a front and back ground structure and a connecting yarn connecting the same has been used in various fields because of its excellent resilience, cushioning property, air permeability and the like. There is no exception in the field of clothing, and it is widely used for general clothing, sports clothing, and even innerwear. However, especially in the field of clothing, the three-dimensional fiber structure has to be sewn in a more complicated three-dimensional shape, which has caused a great inconvenience. That is, a step is formed in the sewn portion, so that not only sewing is difficult but also the appearance is very poor. The cause is considered as follows. Since the three-dimensional fiber structure is formed by connecting the front and back ground structures with the connecting yarns, the pressure applied at the time of sewing causes the connecting yarns to be crushed and the front and back ground structures to shift. In this way, the three-dimensional fiber structure in which the ground structure is shifted is sewn to form a three-dimensional shape, but the difference is different, and the force to return to the original works, so a step occurs in the sewn part. It is considered that the appearance is bad.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems. In particular, the present invention eliminates deviations in the course direction, the wale direction, and the bidirectional direction of the upper substratum structure, and provides excellent sewing performance and appearance. To provide a three-dimensional fiber structure.

[0004]

Means for Solving the Problems The present inventors have searched for the cause of the occurrence of a step in the sewn portion, found out that the difference was caused by the misalignment of the front and back fabrics at the time of sewing, and completed the present invention. The present invention relates to a three-dimensional fiber structure comprising a front and back ground structure and a connecting yarn for connecting the ground structure, wherein the connecting yarns have different densities from 1: 2 to 1: 6 in different thicknesses. And the swing width ratio is 1: 1 to 1: 6
A three-dimensional fiber structure characterized by satisfying the following. In the three-dimensional fiber structure of the present invention, the swing width of the connecting yarn having a large total denier is equal to or greater than the swing width of the connecting yarn having a small total denier, and the total denier of the connecting yarn is 20 to It is preferable that 300 denier and the swing width of the connecting yarn be 1 to 6 stitches. In addition, when used for clothing, particularly for inner use that directly touches the skin, a three-dimensional fiber structure that satisfies that at least one of the connecting yarns is composed of a multifilament having a single denier of 5 to 10 deniers is preferable. This is because the monofilament with high rigidity is exposed from the gaps in the ground tissue and from the sewn parts to stimulate the skin,
This can cause inflammation.

[0005] The three-dimensional fiber structure of the present invention can be knitted using, for example, a six-reed double Russell machine as shown in FIG. The reeds L1 and L2 form the ground texture on the front surface, and the reeds L5 and L6 form the ground texture on the back surface. The reeds L3 and L4 connect these front and back ground structures to form a three-dimensional fiber structure. The novel three-dimensional fiber structure of the present invention can be knitted by changing the thickness of the connecting yarns of the reeds L3 and L4 and the swing width of the tissue. The material of the front and back linings and the material of the connecting yarn are not particularly limited, and may be selected according to the application, but a synthetic fiber such as nylon or polyester is suitable for the connecting yarn. Further, the structure of the front and back lining structures is not limited to a mesh structure, a flat structure, or the like. Hereinafter, a connecting yarn having a small total denier is referred to as a fine connecting yarn, and a connecting yarn having a large total denier is referred to as a thick connecting yarn.

In the present invention, it has been found that the displacement of the ground structure is suppressed by setting the swing width of two connecting yarns having different thicknesses to a certain ratio. In particular, the swing width of the thick connecting yarn is set to be smaller than that of the thin connecting yarn. It was also found that the effect of suppressing the displacement of the front and back lining structure becomes more remarkable when the height is increased. From this, in the present invention, the fine connecting yarn forms a three-dimensional structure so as to maintain the gap between the front and back fabrics, and the thick connecting yarn acts to suppress the course direction, the wale direction, and the bidirectional displacement of the front and back fabrics. You can think that you are doing. Therefore, it can be said that making the swing width of the thick connecting yarn larger than that of the thin connecting yarn in the structure of the connecting yarn is the optimum condition for eliminating the deviation of the front and back lining structure and eliminating the step in the sewing portion.

When the two connecting yarns have the same swing width, it is preferable that the swing width is set to three or more stitches. The swing width of this connecting yarn is preferably up to 6 stitches, and there is no difference in the effect even with a greater swing width. I will. Accordingly, it is preferable that the swing width ratio is 1: 1 to 1: 6, the swing width of the fine connecting yarn is 1 to 6 stitches, and the swing width of the thick connecting yarn is 3 to 6 stitches. The ratio of the denier number is preferably 1: 2 to 1: 6, and even if the ratio is higher than this, there is no difference in the effect. In consideration of use for clothing, the total denier is preferably in the range of 20 to 300 denier from the viewpoint of thickness, air permeability, and rigidity. In consideration of this and the denier number ratio, it is preferable that the fine connecting yarn has a total of 20 to 50 denier and the thick connecting yarn has a total of 40 to 300 denier.

[0008] In the three-dimensional fiber structure satisfying these ranges, deviation in the course direction, the wale direction, and the bidirectional direction of the front and back lining structure is suppressed, the sewing becomes easy, and the finish is excellent without any steps. . In addition, when a connecting yarn composed of a multifilament having at least one single denier of 5 to 10 deniers is used, the connecting yarn is exposed from a gap or a sewn portion of the ground tissue, as in the case of using a monofilament. Since it does not cause irritation, it is suitable for inner materials that directly touch the skin. In addition, particularly in the case of swimwear and brassiere cup materials that require complicated sewing processing, it is a very excellent material that is easy to sew, easy to mold three-dimensionally, has a beautiful appearance, and is gentle to the skin without irritation. It can be.

[0009]

(Evaluation method)

<Sewing property> Conditions: shown in Table 1. Sewing procedure: The bias tape was sewn from end to end in the course direction at a uniform speed perpendicular to the ground of the three-dimensional fiber structure. The same was performed for the wale direction. (FIG. 7). Evaluation: The three-dimensional fiber structure to which the bias tape was sewn was placed on a measurement table, and the angle (θ) generated between the portion where the bias tape was sewn and the measurement table was measured (FIG. 8). The angle was evaluated according to Table 2. <Appearance> In a three-dimensional fiber structure sewn with bias tape,
The appearance was evaluated. A: Very smooth with no steps.・ ・ ・: Smooth with no steps Δ: There is a small step. ×: There is a large step.

[0010]

[Table 1]

[0011]

[Table 2]

Embodiment 1 Based on the design shown in FIG.
A three-dimensional fiber structure was created. After the obtained three-dimensional fiber structure was preset at 190 ° C. for 1 minute, it was dyed at 130 ° C., dried, and finally set at 150 ° C. for 1 minute to give a total thickness of 3.2 mm, a knitting density of 45 courses / inch, A 25 wale / inch three-dimensional fiber structure was obtained. About the obtained three-dimensional fiber structure, sewing property and appearance were evaluated. Table 3 shows the results.

Embodiment 2 Based on the design shown in FIG.
A three-dimensional fiber structure was created. After the obtained three-dimensional fiber structure was preset at 190 ° C. for 1 minute, it was dyed at 130 ° C., dried, and finally set at 150 ° C. for 1 minute to give a total thickness of 3.0 mm and a knitting density of 44 courses / inch. A 25 wale / inch three-dimensional fiber structure was obtained. About the obtained three-dimensional fiber structure, sewing property and appearance were evaluated. Table 3 shows the results.

[Embodiment 3] Based on the design shown in FIG.
A three-dimensional fiber structure was created. After the obtained three-dimensional fiber structure was preset at 190 ° C. for 1 minute, it was dyed at 130 ° C., dried, and finally set at 150 ° C. for 1 minute to give a total thickness of 3.2 mm, a knitting density of 46 courses / inch, A 25 wale / inch three-dimensional fiber structure was obtained. About the obtained three-dimensional fiber structure, sewing property and appearance were evaluated. Table 3 shows the results.

Comparative Example 1 Based on the design shown in FIG.
A three-dimensional fiber structure was created. After pre-setting the obtained three-dimensional fiber structure at 190 ° C. for 1 minute, dyeing and drying at 130 ° C., and finishing setting at 150 ° C. for 1 minute, a total thickness of 2.9 mm, a knitting density of 45 courses / inch, A 26-wale / inch three-dimensional fiber structure was obtained. About the obtained three-dimensional fiber structure, sewing property and appearance were evaluated. Table 3 shows the results.

Comparative Example 2 Based on the design shown in FIG.
A three-dimensional fiber structure was created. After the obtained three-dimensional fiber structure was preset at 190 ° C. for 1 minute, it was dyed at 130 ° C., dried, and set at 150 ° C. for 1 minute to give a total thickness of 3.2 mm and a knitting density of 44 courses / inch. A 25 wale / inch three-dimensional fiber structure was obtained. About the obtained three-dimensional fiber structure, sewing property and appearance were evaluated. Table 3 shows the results.

[0017]

[Table 3]

[0018]

According to the present invention, a denier number ratio of 1: 2 to 2 is used.
A three-dimensional fiber structure using connecting yarns having different thicknesses satisfying 1: 6 and having a swing width ratio of the connecting yarns of 1: 1 to 1: 6 has a course direction of a front and back lining structure, a wale direction, and a bidirectional structure. Can be prevented, and a three-dimensional fiber structure excellent in sewing property and appearance can be obtained. Also, by increasing the swing width of the connecting yarn with a thicker denier than the other,
The effect is more pronounced. Further, at least one of the connecting yarns is a multifilament, particularly a single yarn denier 5
By using a multifilament of 10 to 10d, it is possible to obtain a three-dimensional fiber structure that is less irritating to the skin and is most suitable for an inner material with a beautiful appearance.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a structure of Example 1.

FIG. 3 is a diagram showing a structure of Example 2.

FIG. 4 is a diagram showing a structure according to a third embodiment.

FIG. 5 is a view showing a structure of Comparative Example 1.

FIG. 6 is a view showing a structure of Comparative Example 2.

FIG. 7 is a diagram showing a procedure of sewing.

FIG. 8 is a diagram showing a method for evaluating sewing performance.

[Explanation of symbols]

 1, knitting needles (needles) of front and rear needle beds 3 trick plates of front and rear needle beds 4 stitch combs on front and back sides 5 between hooks 6 three-dimensional fiber structure 7 bias tape 8 sewing parts L1 to L6 reed

Continuation of front page (56) References JP-A-10-325056 (JP, A) JP-A-4-41753 (JP, A) JP-A-2-229247 (JP, A) JP-A-10-226912 (JP) , A) (58) Field surveyed (Int. Cl. ⁷ , DB name) D04B 21/14 D04B 21/16

Claims (5)

(57) [Claims] 1. A three-dimensional fiber structure comprising a front and back ground structure and a connecting yarn for connecting the ground structure, the connecting yarns having different thicknesses satisfying a total denier number ratio of 1: 2 to 1: 6. 3. A three-dimensional fiber structure, comprising: a width ratio satisfying 1: 1 to 1: 6. 2. The three-dimensional fiber structure according to claim 1, wherein the swing width of the connecting yarn having a large total denier is equal to or larger than the swing width of the connecting yarn having a small total denier. . 3. The connecting yarn having a total denier of 20 to 3
3. The method according to claim 1, wherein said denier is 00 denier.
The three-dimensional fiber structure as described in the above. 4. The three-dimensional fiber structure according to claim 1, wherein the connecting yarn has a swing width of 1 to 6 stitches. 5. The three-dimensional fiber structure according to claim 1, wherein at least one of the connecting yarns is composed of a multifilament having a single yarn denier of 5 to 10 denier.