JPS5881661A - Highly entensible fabric like warp knitted fabric - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] According to the present invention, the knitted fabric on the front side has a woven-like appearance made by interlacing warp and weft yarns, and the back side has a warp knitting structure, so it has a shape of 11 fl! The present invention relates to a warp knitted fabric having excellent kK, elasticity of 20 or more in the warp, weft and diagonal directions, and owAe of 90 or more.

Conventional general warp knitted fabrics, when using natural fibers or even when using synthetic fibers, have an elasticity of less than 20.
The longitudinal elasticity of the buttocks is even lower.

In order to compensate for this drawback, knitted fabrics in which I-urethane elastic fibers are alternately knitted to suppress stretchability in the warp direction, weft direction, or both warp and weft directions are used for underwear and underwear. However, these conventional elastic warp knitted fabrics lack knitted fabric weight, and both sides of the knitted fabric are
Due to the appearance of knit rugs, the appearance of a woven fabric cannot be obtained, and the disadvantage is that the stitches open under tension. As a function of expansion, it is lacking in nine, also, gentlemen and ladies.

The characteristics necessary for functional products exclusively for autumn, such as foundations and minute hands for children's clothing and women's underwear, are abrasion resistance, form stability, elegance that is unique to fabrics, heat retention, and comfort. It is necessary to satisfy comfort at the same time. Furthermore, in order to obtain these functional characteristics, the current technology for knitting warp knitted fabrics and the combination of materials alone have not reached a satisfactory state, and both knitted fabric functions are completely insufficient. . As a result of extensive research into the development of a warp knitted fabric with excellent stretchability and a nine-woven fabric appearance to compensate for these drawbacks, the present inventors have arrived at the following invention, which satisfies this need. In addition, recent market needs have increased the demand for interfabric jerseys produced by warp knitting machines that can reduce costs and save energy, and the above-mentioned functionality has all been improved over conventional products.

In general, warp insertion using a normal warp knitting machine is carried out by knitting one warp 1 into a base assembly lkl and IK insertion knitting, as shown in FIG.

As shown in Fig. 1, one warp thread 1 is inserted into the ground weave 1 and l, and the warp thread 1 can be inserted in the warp direction. It is simply inserted into the warp knitting machine and l, and it is usually used for highly elastic items such as knot tower nets. The objective is to obtain a warp knitted fabric that has an interwoven function.

According to Honjitsu 1jiK, the warp knitted fabric has the following configuration in order to achieve the above objective. In other words, between one row of adjacent needle loops formed in the warp direction, that is, in the interval between two wales, two or more yarn needle loops are not formed and are continuous in the warp direction. A warp knitted fabric formed by inserting two or more warp yarns in the wale direction, each of which rises and falls above and below a sinker loop formed by a reed of the ground, and one sinker loop. The warp has a part where it rises and falls with respect to the warp.

According to the present invention, the warp in the warp direction and the curls/curls in the weft direction appear on the surface of the warp knitted fabric, giving it an appearance similar to that of a woven fabric. The knitted structure of the warp knitted fabric is formed.

The present invention will be explained in detail below based on the embodiments shown in attached page Ia.

FIG. 2 is a knitting organization diagram of an embodiment of the warp knitted fabric of the present invention. As shown in Fig. 2, according to the present invention, two warp threads 5 and 6 are inserted continuously in the warp direction between adjacent needle loops, that is, into the wale gap. As shown in the figure, each of the 92 inserted warps 5.6Fi rises and falls up and down in the wale direction with respect to the sinker loop f that connects the wales made of needle loops f7 made of ground reeds, And for one sinker loop 8 between the wales,
One warp (5 or 6) has a floating part and the other warp has a sunken part. In this way, the sinker loop 8 plays the role of the weft yarn O in the woven fabric.By rounding it, the appearance of the knitted fabric of the present invention is completely interwoven. In addition, since the back side has a warp knitted O-knit structure formed of ground reeds, it can fully satisfy the O performance as a knitted fabric. FIG. 4 shows h warp 5.・and sinkeroo f
Expanding the mixed state of 8, mourning is also O.

According to the 4th g, 1 ':) t) ') between z - k *
aKt Tomogaru sinker loop f8 is inserted in the warp direction and intersects above and below warp thread 5.6), l for warp thread 5.6
It can be clearly seen that the sinker loop f8 in the loop gap Kt plays the role of the weft of the fabric, and the inserted warp 5.6 serves the function of the warp of the fabric. In addition, since the warp threads 5 and 6 rise and fall in one single loop, and each warp thread alternately rises and falls with respect to a large number of sinker loops in the wale direction, the overall appearance is that of a plain weave fabric. It has a special structure consisting of two droops on the front side and two droops on the back side.

For this reason, it is a double-sided knitted fabric with clearly different textures, with the front side having an interwoven appearance and the back side having a normal warp knitted appearance consisting of two droops. A nine-knit fabric with excellent ground functionality can be obtained.

In addition, when a high strength woven-warp knitted fabric is required with outer at between the woven fabrics, the length of the sinker rule l is applied in the course direction with an appropriate gap in the course direction. If you change the needle loop ft, you can pull it in the warp direction without forming two or more yarns between adjacent needle loop rows, that is, in the interval between two wales. It is a mature warp knitted fabric in which two or more warp yarns are inserted continuously in the -#:, and two or more warp yarns rise and fall above and below the sinker loop formed by the ground reed in the -ru direction, respectively. The warp has a part where it rises and falls with respect to P1 and 1 O sinker rule L, and the warp in the warp direction and the sinker loop in the weft direction appear on the surface of the warp knitted fabric, and it is similar to the warp of the warm 4-woven fabric. It has a weft-like effect, and the back side is made of ground reeds, and the length of the sinker loops is changed at appropriate intervals in the course direction to create a nine-warp knitted structure. The real ground tissue with high tension strength is: 1) lO) Ricot.

lX30) ricott, and lXl0) licott and IX3
Although tricot interlocking structures () and -7 structures) are mainly used, any warp-knitted structure constituting the warp-knitted fabric may be used, preferably a form-stable knitted structure. Insert the warp threads into the 9-piece structure (1x2O).
: The number of inserted warp threads of the present invention is appropriately selected according to the number of reeds of the warp knitting machine. For example, the number of reeds of a Raschel knitting machine and a tricot knitting machine is usually 3 to 8. The ground weave is knitted with 1 to 3 reeds, and the warp threads are inserted through the remaining casings.Also, in the case of a special lace raschel knitting machine, the number of sheets is usually 20 to 52, but it can be knitted with 1 to 3 reeds. It is sufficient to knit the ground weave using one of the reeds and insert the warp threads using part or all of the other reeds.

In the present invention, the important thing in quantity 4 is that in one wale, that is, with respect to one sinker loop in one wale direction, the warp has a part where it rises and falls, and it is necessary to form such a part appropriately. This makes it possible to create the appearance of textiles such as plain weave, twill weave, and satin weave.
, for example, in all wells, giving a plain weave appearance.

The state in which the warp threads float up and down in one sinker loop spanning one wale gap varies depending on the number of warp threads inserted and the selection of warp threads, gingmos, and threads.For example, in the case of two warp threads, In the case of three, one is floating (sinking) and the other two are sinking (floating), and the three are floating and sinking alternately. There are cases. Even in the case of 4 lines, the number of ups and downs is 1
A combination of two warps, two warps, two warps, and four warps may be used alternately.The same applies to cases of five or more warps.In this way, the state of ups and downs depends on the number of warps inserted and the desired fabric. If you select the appropriate one according to the appearance of the tone, you can pull it.

Referring to the drawings, FIG. 5 shows an example in which three warp threads are inserted. As shown in this knitting organization diagram, three warp threads 10, 11, and 11 are successively inserted into nine adjacent needle loop rows in the warp direction, and the ground weave 9 is knitted with IX2 tricot weave. , as shown in the enlarged view of the knitting yarn in Figure 6,
The three warp threads 10, 11, and 11 that can be inserted are needle loops made of ground reeds.
One sinkeroo! That is, 1) one O sinker loop extending in the gap between the two O sinkers has a part formed by rising and falling up and down. That is, one.

The warp threads 10 are inserted in the warp direction against the sinker loop f14, which is bent over the thread, and the warp threads 10 are inserted in the direction of the booth direction IL, by the amount of k towle, that is, 1'). In this case, the other warp threads 11 and 12 are threaded in the course direction by two wales, that is, over two rows of wales without needle loops.

Ginda. Also, when the warp thread 10 is threaded and gindered for two threads, the other warps 11 and 12 are threaded and gindered for one thread. , three warps 1G, 11°12 are ground reeds, and one sinker loop in one wale direction of the needle loop! , i.e., 1 spanning one wale
Two sinker loops rise and fall up and down. When the warp yarns 10 float (sink), the warp yarns 11 and 12 have a sinking (floating) portion, so that a warp knitted fabric having a completely woven-like appearance can be obtained.

FIG. 7 shows an example in which four warp threads are inserted.

As shown in this knitting organization chart, there are four warp threads 16.1 in the warp direction.
7. Insert threads 18 and 19 into adjacent needle loops consecutively, and knit the ground weave using the IX2 tricot weave. The inserted 94 warp threads 16.17, 18.19 are composed of 4 in the ground reading Salel needle rule - 7"200") Ale direction 01 sinker loops, i.e. 1') Ocp
z" has a sunken part above and below one sinker loop 21 spanning 11K, i.e. 1)C
) The warp threads 16 and 17 inserted in the warp direction are IF for the sinker loop f21 that is cut between the wales.

When only a part of the warp is threaded and run, the other warp threads 18° and 19 are threaded and threaded for 2 threads. Also, warp 16.17 is 2
Well, some parts are 7w4p and the running time is.

For the other warp threads III and 19, perform warp system Oshi and Ginder so that it is 1, partially shi, 4#y da, and then there are 4 ()fi
Al 6, 17, 18, 19ha 11 reading "t" 4*
? Configured needle loop 01 O'p X-le direction 01 sinker loop, ie 1-0? , - One sinker loop fO rises and falls up and down across the gap,
Kuo>, when warp 16.17 floats ((sinks), warp 18.
Since 19 has a sinking (floating) portion, the appearance is completely that of a woven fabric, and a warp knitted fabric is obtained.

Warp knitting machines used in the present invention include ordinary Raschel machines and tricot machines, but Raschel machines are preferable, and the needle types include flat needles, r needles, and con.
There are various types of wood needles, all of which can be used, but preferably the konno wood needle is used.

Furthermore, as a knitting machine dage, 6r-di/Finchil 3
It is possible to knit up to 2 r-inches, but preferably 2 (1"-30 r-di/inch) to 30 r-di/inch.

It should be noted that the materials for the yarn used for the ground weave and the yarn inserted in the warp direction can be selected as appropriate depending on the warp knitting machine used, but for example, acrylic spun yarn and urethane elastic yarn can be used. Containing power/Gu Linda yarn.

Various combinations of materials are possible depending on the purpose of use, such as a core yarn containing natural fibers and 4-urethane elastic fibers, or a combination of coverlin yarns containing 4-urethane elastic iron rods. /Core yarn containing urethane elastic yarn or urethane elastic fiber, *Purring yarn,
If the p fabric structure is knitted with intertwisted yarn etc., the scissors thread is used as a sinker loop.] Gives elasticity in the weft direction of the knitted fabric, and gives elasticity in the warp direction with the needle rule. The urethane elastic yarn includes ':I yarn, force I4-ring yarn, and twisted urethane elastic yarn, but depending on the intended use,
For example, using urethane elastic fibers as they are (pair use), using them in a core yarn in combination with natural fibers, or using them in combination with synthetic fibers to reduce storm resistance. 9y yarn etc.
The combination can be changed depending on the purpose of the mission.

Then, inside the nine-warp knitted fabric / urethane elastic iron embroidery!
If the content is $- or more, the intended warp knitted fabric with high elongation texture will be obtained, but preferably the content of the elastic fibers is 1.
5 to 40 times is the best highly stretchable woven barrier knitted fabric from Otawawt.

Note that the yarn containing 4-urethane elastic fiber is JL%/% regardless of whether it is used as a ground yarn or a warp-direction insertion yarn. In addition, when skeleton yarns are used as insertion yarns in the warp direction, elasticity is obtained in the weft direction of the knitted fabric (due to loop deformation of the ground structure), and elasticity is obtained in the warp direction due to the elasticity of the scissor yarns. High elasticity can be obtained. Furthermore, if wrinkled yarns are used for both the yarns forming the ground structure and the yarns inserted in the warp direction, both the warp and weft will have high elasticity and the appearance will be similar to that of a woven fabric.
A knitted fabric having the following properties is obtained.

At this time, among the amount of gold threads constituting the knitted fabric, the urethane elastic fibers are small (need to have more than 5%), 5v1
In the following cases, it is not possible to obtain good side elasticity.If the content is 59I or more, the content of the urethane elastic fibers can be increased according to the desired product OIL. The denier can also be changed depending on the age of the warp knitting machine used. For example, 48 dirge/2i/
In the case of Te's Raschel machine, the ground structure is sO denier ~ 200 f'' = -k (1/180) Jm ~ 1/45
N+w), the yarn inserted into the warp is 100 denier to 6
00 denier (1/90 Nsm ~ 1/15 Nm)
In the case of a 28r-zo/inch tricot machine, the base fabric is 20 denier to 150 denier (1/2 denier).
45 ONm ~ 1/60 Nws), the yarn inserted into the warp is 50 denier ~ 450 f'' W -k (
1718 ONm to 172 ONms) If O range O yarn is used, a functionally excellent 9-knitted fabric can be obtained. - The warp-knitted fabric has excellent warp-stretchability and weft-stretchability, It is a warp knitted fabric with very good inertia.

In addition, by using synthetic delicate natural fibers that have the function of zero-spun yarns, such as acrylic spun yarns, for the inserted warp yarns, and using covering yarns containing 4-urethane elastic fibers for the ground weave, we inter-knit them. The result is a woven jersey that has the elegance and heat retention of a woven fabric and is particularly comfortable to wear, making it ideal for men's, ladies' and children's outerwear, as well as women's underwear, etc. Materials are obtained.

In addition, it is possible to obtain a high-stretch woven fabric barrier satin iik that has excellent functions in terms of abrasion resistance, washing resistance, bending resistance, pilling resistance, and knitted fabric strength.

The present invention will be explained below using specific examples.

Example 1 Using a warp knitting machine, a 411"-2" Raschel machine with 3 reeds, 4 urethane elastic yarn TL was applied to the front armpit.
Covering yarn containing O- or more (yarn consisting of 40 denier polyurethane elastic fiber and 70 denier nylon yarn) using 110 denier, 2-07
4-6 organization formed the ground organization *tPruko and -4,
What about Yuen? Power/blue ring yarn containing 301 or more urethane elastic embroidery (4 urethane elastic rut fibers 14o5PJ=
--Using 250 denier (a thread consisting of 60% cotton thread)
-2, 7 sounds, Yugotoyo, O-0/2 - 2
10 - Insert with 0/4-4 organization, onboard course 5o
Knitted in courses/inch, this fabric contains urethane elastic fibers of 3091% by weight.

As a comparison kimono of this knitted fabric, a woven fabric with warp insertion according to a conventional technique was knitted. Using a tri-cut machine with a 3-piece reed and a 28r/inch, the front reed and double dome @Ki? Reester processing system, 76f" Neil was used, and the Freon F reed was 1-0/1-2 @ dollar reed, and the ground organization was 2-3/1-00. The no-suki ivy reed was Cotton thread 3072B'
Insert with the structure of 〇-G/2-2 and perform on-machine course 5.
5; Knitted with -17 inches.

These knitted fabric tubes are relaxed scouring (60℃).

The dyeing process was completed under the following conditions (45 minutes) → Dyeing (Wince Zoo℃, 60 minutes) → Finishing cera) (160℃, 1 minute dry heat), and the dyeing process was completed in terms of consumption performance, elasticity characteristics, and sewing characteristics @WC) As a result, the warp knitted fabric of the present invention has very good elongation, elasticity, firmness, shape stability, heat retention, It has been found that it is possible to obtain highly elastic warp-knitted fabrics with excellent elegance and abrasion resistance.The functionality of these O-knitted fabrics is maintained by the method shown below. Oh, friend.

Washing shrinkage rate in terms of consumption performance: Test piece K of 30cm x 36m+ Aimed at 20m intervals at 5 am intervals, 11C-t in longitudinal and latitudinal directions
- After Rishitomo, do household laundry.

Measurement method: Temperature 40℃±2℃ Bath ratio 1:50 Washing time: 5 minutes Rinse for 10 minutes at room temperature Detergent 2.- Peas 0.2 inch Dehydration Centrifugal dehydration 30 seconds Drying Natural drying Measure the mosquito contraction ratio of the test piece after washing it 10 times.

Resilience f: Similar to the washing shrinkage rate, the repellency of the fabric is measured before one wash and after 10 washes.

Fixed method: Press the edge of the test piece with the tip of a pencil, and measure the length K at the edge and edge of the fabric.

Wash and do, earthiness: wrinkles caused by washing.
Measure with iK.

Measuring method: After 1110 washes, the 0 test piece was compared with a standard sample and kept constant. On a 5-level scale, 5th grade was the best and 1st grade was judged as poor.

Pilling property: xcr bilinda method, determine the state of pill formation after 5 hours in comparison with a standard sample. Measured in 5 stages, 5th grade being the best and 1st grade being poor.

Tear strength is determined using crab bending, ram method, and Elmendorf tear tester.

Measurement method: Make a 2m cut with a knife on a 6.551X 10tsO test piece, and measure the remaining 4.5aaO tear strength.

Snakkinda: A test piece is rubbed with a grinding wheel and the change in appearance (Olit) is measured by comparing it with a standard sample. 5
The grades are fixed, with grade 5 being the best and grade 1 being poor.

Measurement method: Using a Snackinda tester, set the friction element to S.
4 r, p, m* K and rub for 1 minute, then press
Measure the degree by comparing it with a standard sample. Measured at S stage, 5th grade being the best and 1st grade being unsatisfactory.

Elastic properties The stretch characteristics of the knitted fabric in the warp and weft directions are kept constant.

Test piece: 5 cIa x 30 cm Knitted fabric conditions: 2001 load Fabric conditions: 150 ON load measurement method: Apply a load to the test piece and read the elongation 5 minutes later, read the length 5 minutes after removing the load. Measure the elongation and recovery rate of the test piece at that time.

Sewing performance wet heat press shrinkage rate; test piece 25aII x 25crIK 7 months, top, double press with wet heat press
゛Determine the shrinkage rate -j.

Measuring method: Steam pressure: 4kli'/z" Steaming time: 10 seconds Press temperature: 120°C fVX pressure: 4009/car Relaxation time: 10 seconds... Keym time: 10 seconds Dry heat press shrinkage rate: Test piece 25cN1x The shrinkage rate due to dry heat is measured using a continuous induction press at 25cIII.

Measurement method: Press temperature 160. C de vx pressure 3
kII/am'' Press time: 16 seconds Oblique deformation: Oblique deformation of the test piece is determined by wet heat press shrinkage and dry heat press shrinkage.

Ground thread breakage: Determine the vertical alignment that occurs when the ground thread of the fabric is cut by thin stitching.

Measurement method: J: Uses 2-thin industrial lockstitch.

Needle stitch and model: 1 needle zero stitch.

Number of hands: 5 stitches/31' 2 thin needle DBXI, J/India Needle φ14 Denshin thread Enilon φ50 (white) Electrosymmetry tension as low as possible.

Rotation speed: 40 Or, p, ea.

Throat plate needle hole @ 1.8- Presser foot pressure 3 Feed dog pitch 18 threads/inch Feed dog height 0.8 m Comparison of the functional characteristics of the knitted fabric with the structure of the present invention and the conventional knitted fabric is shown below. Shown below.

Table 1 Continued from Table 1 Example 2 A warp knitting machine, a tricot machine with 4 reeds and a capacity of 28 r-zi/inch was used. Using urethane elastic fiber 40 denier covering yarn (yarn made of nylon 70 denier) 110 denier, 1-073
The ground organization tf was formed with the -4 organization. Acrylic spun yarn 1/25 N is used for i-dollar I reed, Ken-doru reed, and pack reed.
Use tn, tr i 0-0/3-310-0
/2-210-0/1-1, middle reed is O-G/2
-210-0/1-110-0/3-3゜pack reed is
0-0/1-1/Q-0/3-310-0/2-2 was inserted into the fabric and knitted at an on-machine course of 5 seconds courses/inch. Contains % by weight.

As a result of carrying out the same IIK dyeing and finishing process as in Example 1, the resulting knitted fabric was a warp knitted fabric with a high elasticity woven texture having the same functional characteristics as in Example 1.

Example 3 A warp loom, a 40r-2 inch Raschel machine with 6 reeds was used, the front reed and the 2 dollar reed were made of I-liester processed yarn of 100 denier, and the front reed was a 2-0 reed. /2-4/2-074-6* J dollar l reed is
A ground organization was formed in the 4-672-00 organization. ~$■
Reed and Z dollar Reed and calligraphy W reed and Pa, Ri reed Kq, / Force Δ-Rinda yarn containing 1091 or more urethane elastic yarn (
I use urethane elastic fiber 210 denier and force D-ring yarn cotton yarn @O/-8' to 300 denier, middle ■ reed and Kendoru reed are 0-0/4-410
-072-2. Middle ■ Reed and grasshopper reed are O-0/2
-210. Inserted with Q/4-40 tissue, on-board course 60
This knitted fabric, which was knitted at a course/inch, contained 15% of urethane elastic fibers.Example 1
The same 0* color processing was carried out as in 99. As a result, the obtained knitted fabric was a high-stretch woven fabric barrier pot fabric having the same functional characteristics as in Example 1.

[Brief explanation of drawings]

FIG. 1 shows a normal warp knitting structure with warp insertion. Figure @2 shows a knitting organization diagram of a warp knitted fabric exhibiting a high stretch woven fabric-like function according to the present invention. FIG. 3 is an enlarged view of the knitted yarn in FIG. 2. Figure tg4 is an enlarged view of the state in which the warp and one sinker loop intersect in the wale direction of the needle loop of the knitted fabric in Figure 3. The gs diagram shows warp 3 of a warp knitted fabric with a high elasticity woven-like function.
The organization chart for this insertion is shown. FIG. 6 is an enlarged view of the knitted yarn of FIG. 5. Stripe diagram 7 is a knitting organization diagram when four warp yarns are inserted in a warp knitted fabric exhibiting a high elasticity woven-like function. FIG. 8 is an enlarged view of the knitted yarn of FIG. 7. In addition, the numerical numbers in the figure indicate the following O. 1.5, 6, 10, 11. 12, 16, 17° 18.1
G indicates a thread inserted in the warp direction. 3.4 and 9.15 indicate the threads of the ground texture. 7.13.20 shows a needle loop yarn constructed with a ground weave. 8.14.21 shows the yarn of the sinker loop, which is made up of the ground texture. Patent applicant Asahi Kasei Kogyo Co., Ltd. Patent application ceremony Patent attorney Akira Aoki Patent attorney Kazuyuki Nishidate Patent attorney Kiku Yamamoto Patent attorney Akira Yamaguchi Figure 1 Figure 2 Figure 4

Claims (1)

[Claims] Two or more warp threads are placed between two adjacent double loop rows,
It is a warp knitted fabric that is continuously inserted in the warp direction without forming needle loops, and the skeleton warp knitted fabric contains 4 urethane/elastic fibers of 5 weight or more, and has 2 or more or warp yarns. teeth,
In each wale direction, sinker loops formed by ground reeds float up and down (9), and the warp threads float up and down with respect to one sinker loop. Kinji-kai