JPS6385146A - Extensible knitted cloth - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a stretchable knitted fabric, particularly to a stretchable knitted fabric suitable for swimsuits, leotards, and other clothing that require a body shaping effect.

(Prior art) Silk fabrics using nylon false twisted yarn have been known for a long time as knitted fabrics for swimwear, leotards, etc., but recently, elastic yarns such as spandex and long fibers such as nylon and ester have been mixed. Warp knitted fabrics or nine-way fabrics made by inter-knitting the aforementioned spandex yarn or its interwoven yarns (covered yarns, core yarns) and spun yarns are often used because they have excellent elasticity and are comfortable to fit and wear. It is used. In order to provide these knitted fabrics with great stretchability, they are often knitted using a single spandex yarn that has relatively low stretchability. Therefore, when swimsuits, leotards, etc. made only of these silk fabrics are worn, they adhere closely to the body and provide a good fit, but because of their low elasticity, women's abdomens, buttocks, etc. in particular tend to protrude, resulting in little body shaping effect. In order to improve these drawbacks, we have developed clothing such as leotards or swimsuits in which the upper and lower parts are made of a single piece of stretchable knitted fabric continuously knitted with different deniers, and the thin stretchable yarn portion A garment such as a leotard or a swimsuit has been proposed (Japanese Utility Model Publication No. 86515/1983), which is characterized by having an upper half above the waistline and a lower half X made of thick elastic yarn. However, because the clothing has yarns with different elasticity switching all at once near the first waist section, the body becomes uneven around the entire waist area at the border between the lower part, which has stronger elasticity, and the upper part, which has weaker elasticity. It was extremely unsightly, and when the knitted fabric was dyed, the parts with different elasticity became puckered (uneven), which caused a big problem when sewing the outer cover and sewing.

(Problems to be Solved by the Invention) The present invention provides a knitted fabric inter-knitted with two or more kinds of stretchable fiber yarns and non-stretchable fiber yarns having different stretching powers, which can be used for swimwear,
A stretchable knitted fabric suitable for clothes that require a body shape shaping effect, such as leotards, which has an excellent body shape shaping effect and does not cause unevenness in the shape correction area. The purpose is to obtain.

(Means for Solving the Problems) The present invention is characterized in that a non-stretchable fiber yarn and two or more kinds of stretchable fiber yarns having different stretching powers are cross-knitted, and the knitted fabric portions having different stretching powers are formed in stages. Stretchable knitted fabric, which is knitted in such a way that parts of the knitted fabric are knitted in a mixture of different stretching forces at the boundary portions with different stretching forces, and are knitted continuously without having one switching part. It is the earth.

In the present invention, the non-stretchable fiber yarn inter-knitted with two or more types of stretchable fiber yarns having different stretching powers include various synthetic fiber yarns,
Natural fiber yarns are used. In the case of circular knitted fabrics, 100% yarns such as 1 cotton or acrylic yarns, cotton/acrylic blended yarns, and cotton/polyester blended yarns are preferred, and the thickness is preferably 30 to 5 oz in cotton count. In the case of warp knitted fabrics, long fiber yarns such as nylon and polyester are preferred, and the thickness is 30-7.
0 denier is preferable, and the more preferable thickness is 40-1!
It is io denier.

In addition, polyurethane-based elastic threads are preferred as stretchable threads, and in this case, either polyether-type polyurethane elastic threads or polyester-type polyurethane elastic threads may be used, but for swimwear, polyester-type polyurethane elastic threads with strong salt resistance are used. Yarn is suitable. Stretchable fiber yarns having different stretching powers may be obtained by any method, but it is preferable to vary the stretching powers by varying the thickness of the threads. For low stretch yarns, 20 to 40 deniers are preferred. If the BO denier is less than 300%, the stretching force at 300% elongation will be less than 0%, and the stress in the fabric will be too weak, resulting in poor fit, which is not good. Moreover, if it exceeds 40 denier, the stretching force will be 209 or more at 300% elongation, and the stress in the fabric will be sufficient, but it will be difficult to differentiate it from high elastic yarns, which is not preferable. Moreover, in the case of high elasticity yarn, 50 to 140 deniers are preferable. If it is less than 50 denier, the difference with low elasticity yarn is <<, or 140 denier.
If the denier is exceeded, the stretching force at 300% elongation of the thread will be 40
If it exceeds 9, the stress on the fabric will be too strong and it will be difficult to knit, especially in warp knitted fabrics, which is not preferable.

Particularly in the case of a circular knitted fabric, a composite yarn of a stretchable yarn and a non-stretchable yarn, such as a covering yarn core yarn, may be used as the stretchable yarn. In the case of circular knitting, the knitting structure is preferably flat knitting or rib knitting, and in the case of warp knitting, double danby 1 half or satin is preferable. In this case, the parts of the knitted fabric with different elasticity and the boundaries between the different elasticities are designed to make the appearance of the knitted fabric when worn and the unevenness of the body shape compensating part as uniform as possible, and to ensure smooth operation during knitting processing. Preferably, the fabrics are knitted in the same knitting structure. The gauge of the knitting machine used is 24 for flat knitting on a circular knitting machine.
-28 gauge, 18-24 gauge is preferred for rib knitting, and 24-32 gauge is preferred for warp knitting. We conducted various studies to minimize the puckering phenomenon of the knitted fabric and the unevenness during wear at the boundary where two types of elastic yarns with different elastic strengths switch, that is, at the boundary area. When changing the force step by step, if a large number of threads of one thread are placed in a band shape with a width of 5 or more, it will cause puckering, and this tendency will occur if the other thread has a large stretching force. It has been found that this occurs depending on the thread. It was also found that puckering is less likely to occur when a thread with a small stretch is placed in a band shape in the area where a thread with a large stretch is present, even when the other thread is 5- or less. . As a result of further investigation using these findings, we found that, as shown in Figure 1, in the cross-knitted fabric 1 of non-stretch fiber yarn and stretchable fiber yarn, there is a difference between the partial yarn containing high-stretch yarn and the low-stretch yarn. In order to change the stretching force of the knitted fabric in stages, the width of the band-shaped part milling of the low-stretch yarn is set to δ.
It is preferable that the width of the band-like portions h of the high elastic yarn be made uniform within a certain range, and that the width of the band-like portions h of the highly elastic yarn be gradually reduced. Furthermore, the ratio of the width of the band-like part to the band-like part Bl-BeL is as follows: Bl = 4 = 5: l, A4: C = 3
: l, to: island*2~&5: 1% A4: B4=
L5-L8: 1. ,,-, An=73ne:1:
It is preferable that the width of the last band portion connected to the B portion, such as L, be equal to Bn.

Further, it is preferable that the total number of band parts and the width of the band parts are changed depending on the area where the knitted fabric is used or the size of the final product obtained using the knitted fabric. For example, in order to smoothly push up the protruding part of the abdomen to the upper part of the waist, the number of bands and A4AS should be relatively large, and for the buttocks, on the contrary, the number of bands of At~ should be increased. It is better to use hard force to lift your buttocks. Further, the arrangement of the portion A containing high elasticity yarn, the portion B containing low elasticity yarn, and the boundary portion 0 where these are mixed may be arranged in any order, and the final product obtained using the knitted fabric may be arranged in any order. It may be determined as appropriate depending on the area where the knitted fabric is used. For example, if you knit a knitted fabric with AsBs0 parts with different elasticity as shown in Fig. 2 and sew the swimsuit shown in Fig. 3, the lower part A of the chest will prevent the chest from falling, and the lower part A of the abdomen will prevent the lower part of the chest from falling. The protruding part of this part is pushed up to the upper part 01B.

(Example) Example L 1 needle bed length 111 m 28 gauge, 3 reeds, Nypn 50 denier 12 filament prite irregularly shaped yarn as non-stretch yarn, polyester type polyurethane elastic yarn as high elastic yarn A 70 denier yarn was used, and a 40 denier polyester-type polyurethane elastic yarn was used as a low stretch yarn to prepare a half 1i swimsuit fabric to obtain the swimsuit shown in FIG. The thread arrangement at this time is: Front reed Nylon thread 50 denier Full set Reed
Polyurethane elastic thread 70 denier rear reed l
It was made of 4o denier, and the threads for the middle and rear reeds were combined to make a complete set.

Further, the arrangement of a portion A containing a high elasticity yarn, a portion B containing a low elasticity yarn, and a boundary portion 0 where these are mixed is as shown in FIG.

The basic number of needles of the low elastic thread of the rear reed is 8, and the boundary part o1 corresponding to the buttocks is A4 as shown in Fig. 4.
10, -8, As go, 8 horses, ~ 35, 138, 4 40, 48, and in the boundary part 02 of the part corresponding to the abdomen, as shown in Fig. 5, A140
Books, -8 books, ~30 books, B18 books 1Aa go books, B
3 A book 1 to 16 books, B 48 books, 4 10 books 5Ill
l A book 1A 48 pieces, -8 pieces, Af 8 pieces, Shi 8 pieces, boundary parts 03 and 04 of the part corresponding to the lower chest
In order to clearly show the protrusion of the chest, the structure was constructed as shown in Fig. 6.

) part jlt38 pieces 1 B38 pieces 1 A125 pieces 1
Horse 8 pieces 1 Am 40 pieces, Bl 8 pieces A part 60 pieces 04 part Bl 8 pieces, AI go book, Horse 8
16 A2 books! 138 books, A812 books, B48
Book, A48 threads, P, 8 threads, A68 threads With these yarn arrangements and knitting structures, set the knitting growth for the other A%B sections according to the wearing dimensions, set the on-machine course to 70, and use nylon runner 160e+i. A net fabric was made using a 15cm elastic thread runner. The obtained knitted fabric was dyed and finished using the following normal dyeing process for knitted fabrics containing polyurethane elastic yarns.

Relaxation (9o”C x 3o seconds) - Theory Water - Preset (185℃ x 30 seconds) - Scouring (80℃ x 30 minutes) - Hot water washing (50℃ x 10 minutes) - Dyeing (95℃ x 60 minutes) - Hot water washing (50℃ XIO minutes) - theory water - finishing seven) (1? o
The densities of the finished knitted fabrics obtained were 108 courses/inch and 56 courses/inch, and the width of the basic low stretch yarn portion B of the rear reed was about 36 courses.

Using only the silk fabric obtained as described above (without lining), a one-piece swimsuit as shown in Figure 3 was manufactured. In this swimsuit, the A-1 part below the chest prevents the chest from falling and pushes the chest upward, and the A-2 part of the abdomen pushes the protruding part of this part up to the upper part B, ). It has an excellent shaping effect and has the same shaping effect as conventional lined swimsuits. It also had excellent elasticity and was extremely easy to put on and take off.

Example & Using a 28-gauge single circular knitting machine, acrylic/cotton spun yarn 30'8/L (mix ratio acrylic/cotton = ao/ao) was arranged as a non-stretchable yarn, and the elastic power factor was The same polyester type polyurethane elastic yarns as in Example 1, 70 denier and 40 denier, were arranged to knit a swimsuit fabric to obtain the swimsuit shown in FIG.

Further, the arrangement of the portion A containing the high elasticity yarn, the portion 3 containing the low elasticity yarn, and the portion 0 where they are mixed was the same as in the example. In addition, the number of basic low elasticity threads is 6,
Border 01 of the part corresponding to the buttocks, false border of the part corresponding to the waist, and border 03 of the part corresponding to the lower chest
The proportions of high elasticity yarn and low elasticity yarn in and Q were the same as in Example 1. The obtained knitted fabric has an opening degree of □ Breset (175°0,
30 seconds) □ Scouring (80" 0.40 minutes) □ Finishing set (
The density of the resulting knitted fabric was 58 strands/inch and 40 wales/inch.
The width of the basic low elasticity thread part B is approximately:! -8-. When a one-piece swimsuit similar to that in Example 1 was produced using only the silk fabric (without lining), the same effects as in Example 1 were observed.

(Effects of the Invention) The stretchable knitted fabric of the present invention has a high elasticity part and a low elasticity part continuously knitted without having a switching part, so the knitted fabric can be used to make clothes such as swimsuits and leotards. When making a , the unevenness is not expressed, and the elastic part has different elasticity in stages, so it has a great body shape correction effect,
This knitted fabric is suitable for clothing such as swimsuits and leotards. In addition, since threads with different stretching powers coexist at the boundary between the high elasticity portion and the low elasticity portion, a greater body shape correcting effect can be exerted.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the stretch knitted fabric of the present invention, FIG. 2 and FIGS. 4 to 6 show an embodiment of the present invention, and FIG. 3 is a schematic diagram of the stretch knitted fabric of the present invention. FIG. 2 is a front view of a swimsuit made from fabric. 1: Mixed knitted fabric A; Part containing high elastic yarn B: Part containing low elastic yarn 0: Boundary portion Patent applicant Toyobo Co., Ltd. Figure 3 4121 $612 Figure 5

Claims (1)

[Claims] A non-stretchable fiber yarn and two or more kinds of stretchable fiber yarns having different stretching powers are cross-knitted to form knitted fabric parts with different stretching powers in a stepwise manner, and the stretching strength of the knitted fabric part is 1. A stretchable knitted fabric characterized by being knitted with a mixture of portions having different stretchability at different boundary portions, and being knitted continuously without having a switching portion.