JP2019528385A - Fabric with movement following capability - Google Patents

Abstract

It is a fabric having movement following capability, and the fabric is a warp knitted fabric knitted from an inelastic yarn and an elastic yarn, and a depression angle (α) between the sinker loop (2) of the elastic yarn and the knitting direction is 0. The angle of depression (β) between the sinker loop (4) of the inelastic yarn and the knitting direction is 5 ° to 85 °. In particular, under high-speed telescopic motion conditions, it is possible to effectively suppress an increase in wearing pressure due to elongation stress and a decrease in wearing pressure due to delayed recovery, maintain wearing comfort, and prevent muscle vibration.

Description

  The present invention relates to a fabric having movement following ability, and specifically to a warp knitted fabric formed from an inelastic yarn and an elastic yarn.

  An elastic fabric formed from polyurethane fibers exhibits excellent motion following ability under low speed and constant speed conditions, but under high speed and rapid acceleration conditions, a phenomenon that cannot be quickly recovered after stretching occurs. In addition, depending on the knitting structure, different restraining forces are generated on the fabric, and such restraining forces also affect the exertion of the stretchability of the fabric, and further affect the motion following ability.

  Conventionally, most commercially available elastic warp knitted fabrics are suitable only for movement under conditions of low speed and constant speed. For example, Chinese Patent CN20233318U is knitted by three ridges, and the outer knitted fabric is knitted with 20D nylon and the subsequent two ridges are elastically knitted with 40D and 70D polyurethane. The obtained fabric is excellent in elasticity and flexibility and comfortable to wear.

  Also, for example, Chinese Patent CN2050777227U discloses a new shape-up warp knitted fabric, which is knitted by three folds. Specifically, the front wing is knitted with a plain tricot structure with chemical fiber filaments, and the intermediate heel is made of polyurethane. The plain tricot structure and the second stitch structure are knitted alternately, the back heel is knitted with a plain tricot structure in the opposite direction with polyurethane, and the obtained fabric has different shape-up effects on different parts of the body.

  Also, for example, Chinese Patent CN102648313A discloses an elastic warp knitted fabric, the elastic yarn is knitted in a loop structure with plain tricot knitting, double stitch knitting, satin tricot knitting, etc., and inelastic yarn is cord knitting or five needles The satin tricot knitting structure is used, and the inclination angle of the mesh is 20 degrees to 70 degrees, and the obtained fabric has excellent lateral and longitudinal stretch balance and stretch recovery, and has a good fit. When worn, the pattern is less likely to collapse, has excellent movement following capability, and can contribute to improvement of motor function.

  As is well known, top athletes may move at high speeds or shift suddenly during exercise, but these documents are solutions related to the motion tracking of elastic fabrics under high speed and rapid acceleration conditions. We do not provide a draft.

Chinese patent CN202323318U Chinese patent CN205077227U Chinese patent CN102648313A

  An object of the present invention is to provide an elastic fabric excellent in motion following performance particularly suitable for motion at high speed and rapid acceleration.

  The technical solution of the present invention is as follows.

  The fabric having the motion following ability of the present invention is a warp knitted fabric knitted from an inelastic yarn and an elastic yarn, and the angle between the sinker loop of the elastic yarn and the knitting direction is 0 ° to 10 °, and the inelastic yarn The included angle between the sinker loop and the knitting direction is 5 ° to 85 °.

  The cloth having the motion following ability of the present invention can effectively suppress the increase in the pressure due to the extension stress and the decrease in the pressure due to the delayed recovery, particularly under the high speed and rapid acceleration conditions, and is comfortable to wear. Maintains sex and prevents muscle vibration. In addition, the fabric of the present invention is less susceptible to problems such as rupture and tear even when used for a long time, and has a permanent elastic effect. The fabric of the present invention is used in the manufacture of compression wear worn under high-speed and rapid acceleration conditions of top athletes, such as clothes suitable for athletes.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram of a knitted structure of elastic yarn of a fabric according to the present invention, wherein 1 is a needle loop body of elastic yarn, 2 is a sinker loop of elastic yarn, and α is a depression angle between the sinker loop of elastic yarn and the knitting direction. FIG. 3 is a schematic diagram of the knitting structure of the inelastic yarn of the fabric according to the present invention, 3 is a needle loop body of the inelastic yarn, 4 is a sinker loop of the inelastic yarn, and β is between the sinker loop of the inelastic yarn and the knitting direction. Indicates the depression angle. It is a structural schematic diagram of the cylindrical instrument by this invention, 5 is cylindrical cloth, 6 is a cyclic | annular inner frame, 7 is a cyclic | annular outer frame, 8 shows a fixing screw. It is a structure schematic diagram of the cylindrical instrument under test, 9 shows the sagging area of cylindrical cloth.

  The fabric having the motion following ability of the present invention is a warp knitted fabric knitted from an inelastic yarn and an elastic yarn, and the angle between the sinker loop of the elastic yarn and the knitting direction is 0 ° to 10 °, and the inelastic yarn The included angle between the sinker loop and the knitting direction is 5 ° to 85 °.

  The specific structural features of the elastic yarn and the non-elastic yarn are important factors that influence the movement followability of the fabric. In the present invention, the specific structural feature is indicated by a depression angle formed between the sinker loop of the loop and the knitting direction. The specific angle is observed with an SEM electron microscope or a digital microscope.

  The structure of the elastic yarn in the fabric is composed of two parts, a needle loop main body and a sinker loop, and the needle loop main body part is sequentially connected in the knitting direction, and its stretchability can be maximized in the knitting direction. In order to exhibit the elasticity of the sinker loop part in the optimum state, it is necessary to concentrate all the elasticity of the sinker loop part as much as possible in the knitting direction, that is, the elastic force in the knitting direction of the sinker loop of elastic yarn Larger is more preferable, that is, smaller depression angle between the sinker loop and the knitting direction is more preferable. When the depression angle is close to 0 °, almost all the stretchability of the sinker loop is concentrated in the knitting direction, while the depression angle is larger than 10 °. The elastic thread sinker loop is distributed in the left and right direction, and the elastic force escapes in the left and right direction.In other words, the elasticity of the sinker loop is not concentrated in the knitting direction. Therefore, in order to achieve maximization of the movement following ability, in the present invention, the included angle between the sinker loop of the elastic yarn and the knitting direction is 0 ° to 10 °, preferably 2 ° to 9 °. °.

  The structure of the non-elastic yarn is similarly composed of two parts, a needle loop body and a sinker loop. Similarly, the needle loop body of the inelastic yarn is distributed in the knitting direction, that is, the direction of expansion and contraction, and the needle loop body of the inelastic yarn overlaps the needle loop body of the elastic yarn. On the other hand, since it can be said that the inelastic yarn itself is not substantially stretchable, the elastic yarn is provided with a stretchable space by deformation of the loop structure. On the other hand, since the strength of the non-elastic yarn is higher than that of the elastic yarn, the non-elastic yarn loop acts to a certain extent on the elastic yarn loop to increase the strength of the fabric.

  The non-elastic thread sinker loop restrains the elasticity of the elastic thread to some extent other than connecting the needle loops smoothly to form a cloth, that is, impairs the movement follow-up of the fabric. Since the characteristics such as motion followability and strength must be uniformly distributed over the entire fabric, the structure of the inelastic yarn sinker loop is the same, that is, all inelastic yarn sinker loops and knitting The angle with the direction must be the same. When the depression angle between the sinker loop of the inelastic yarn and the knitting direction is less than 5 °, the distribution of the sinker loop is biased in the knitting direction, and the connection between the needle loops in the lateral direction is relatively small, and the cloth can be smoothly applied. While it is difficult to ensure formation, when the included angle between the sinker loop of the inelastic yarn and the knitting direction is 86 ° to 90 °, the sinker loop of the inelastic yarn is almost perpendicular to the knitting direction, and the stretching motion In the present invention, in order to realize the maximization of the movement following ability, the present invention has a sinker loop of the non-elastic yarn, and the performance of the elastic yarn parallel to the direction is greatly restricted, which is disadvantageous for achieving the movement following ability. The included angle with the knitting direction is 5 ° to 85 °, preferably 7 ° to 65 °.

  The elastic yarn according to the present invention is not particularly limited, and may be a polyurethane fiber (abbreviated as spandex, PU), a monocomponent polyester elastomer fiber or a bicomponent side-by-side polyester composite fiber, and a high elastic false twist. It may be a processed yarn or the like. From the design intent of fabric with motion following ability, the use of elastic yarns can not only suppress an increase in pressure due to elongation stress during elongation, but also can suppress a decrease in pressure due to delayed recovery during fabric recovery. When the fabric obtains a large amount of elongation, the corresponding elongation stress is required to be small, and the fabric is required to have excellent instantaneous recovery and high resilience retention. In addition, from the viewpoint of durability, the fabric is required to retain its original dimensions and elasticity even when it is repeatedly expanded and contracted a plurality of times. Therefore, the elastic fiber used in the present invention is preferably a polyurethane fiber that has low stress and high elongation characteristics, can be quickly recovered after elongation, has a high recovery force retention, and has excellent durability. Is a spandex with soft stretch type elastic properties. The spandex having a soft stretch type elastic property is a polyurethane fiber obtained by reacting a polyether diol having a side chain, a diisocyanate compound and two or more diamine compounds, and is contained in the diamine compound. The molar ratio of the ethylenediamine and the branched aliphatic diamine compound having 3 to 5 carbon atoms is 98: 2-82: 18. There are many types of conventional spandex on the market. For example, LYCRA (registered trademark) FUSION (registered trademark) spandex manufactured by INVISTA, creora (registered trademark) Power Fit spandex manufactured by Hyosun, and Sengan manufactured by Huafeng Co., Ltd. Examples include spandex. Compared with the above-mentioned spandex, the spandex having the soft stretch type elastic characteristics used in the present invention has an excellent soft elasticity and a soft elasticity index of 0.75 to 1. The soft elastic index is a ratio between the elongation stress at 100% elongation and the recovery stress at the time of recovery to 100% after elongation to 300%. The soft elastic index is advantageous in that spandex with soft stretch type elastic properties has high resilience retention, improving the elastic recovery of the fabric and reducing the probability of delayed recovery phenomenon, It shows that the movement following ability is improved.

  In the present invention, the higher the content of the elastic yarn, the better the effect exhibited by the elastic yarn, which becomes more remarkable, and the movement followability of the fabric is also high. Theoretically, a fabric composed of 100% elastic yarn has the highest motion following ability, but may easily cause problems such as rupture and tear due to insufficient strength. In order to ensure sufficient strength characteristics such as rupture and tear of the fabric, the present invention reinforces using an inelastic yarn, that is, a “hard yarn”, and the higher the content of the inelastic yarn, the more the rupture, tear, etc. In contrast, the lower the content of elastic yarn, the more likely it is that the non-elastic yarn suppresses the performance of the elastic yarn, and there is a possibility that an excellent motion following effect cannot be expected. Therefore, it is necessary to obtain a balance between the motion following property and the strength characteristic and to maximize the motion following property on the premise of ensuring the strength. Therefore, in the present invention, the content of the elastic yarn is preferably 50 to 90% by weight.

  If the distribution density of the elastic yarn in the fabric is too small, the stretching stress of the fabric will be too small, and when pulling, the energy for overcoming the stretching stress will be relatively small, and as a result, it will be easier to pull. However, there is a problem that insufficient pressure is applied, the effect of suppressing muscle vibration tends to be poor, the recovery stress is small, and the quick recovery characteristic tends to be poor at high speed and rapid acceleration. On the other hand, if the distribution density of the elastic yarn is too large, the stretch stress and recovery stress of the fabric will be too large, and the rapid recovery at high speed and rapid will be remarkably improved, but in order to overcome the stretch stress when pulling There is a possibility that the energy of the body becomes relatively large, and a phenomenon that it is difficult to pull may occur, and if the wearing pressure is too large, the feeling of pressure on the human body is too strong, and the wearing comfort tends to be deteriorated. Therefore, the distribution density of the elastic yarn according to the present invention is preferably 30 to 200 w / inch.

  The inelastic yarn according to the present invention preferably has an elongation of 5 to 50%. Since a certain amount of expansion and contraction is required for the bending and loop formation of the yarn, if the elongation percentage is less than 5% during braiding, the yarn is likely to break and the braiding request may not be satisfied. If the elongation rate is greater than 50%, the yarn tends to be excessively stretched during knitting, the yarn feeding is not smooth, and the knitting passability may be poor. The fiber material of the inelastic yarn satisfying the above elongation range may be natural fibers such as cotton and wool, may be artificial fibers such as viscose and modal, and is synthetic fibers such as nylon and polyester. May be. From the viewpoint of high efficiency of knitting, cost, etc., chemical fiber filaments such as nylon and polyester are suitable. Nylon here includes ordinary nylon and modified nylon (for example, having hygroscopic groups), and polyester includes ordinary polyester and modified polyester (for example, having cationic dyeable groups).

  The thickness of the yarn affects the basis weight of the fabric other than the content of the inelastic yarn and the elastic yarn. If the basis weight is too large, the fabric will be too thick, the clothes pressure on the human body will be large, the frictional force with the skin surface will be relatively large, etc., which is disadvantageous for the excellent movement following effect, and also the wearing comfort is impaired. End up. If the fabric weight is too small, the fabric is too thin, and properties such as anti-slipping properties are not ideal, and general clothing requirements cannot be satisfied. Therefore, it is necessary to rationally select the fineness of the yarn used. The fineness of the inelastic yarn used in the present invention is preferably 10 to 100 denier (abbreviated as D), more preferably 10 to 50D, and the fineness of the elastic yarn is preferably 30 to 300D. Preferably it is 70-140D. In view of the basis weight of the fabric, etc., select a relatively thin thread for the inelastic thread and a relatively thick thread for the elastic thread as much as possible. Therefore, the fineness of the elastic yarn is preferably 1 to 10 times the inelastic yarn fineness, and more preferably 1 to 5 times.

  In the present invention, knitting is performed with a warp knitting structure, and the number of wrinkles is preferably two or three. If the number of wrinkles is too large, the fabric may be too thick, and the motion following effect may be impaired. Taking a fabric knitted with two heels as an example, the fabric is divided into a total of 4 layers from the front to the back, each of the front needle loop surface, the rear needle loop surface, the rear sinker loop surface, The front sinker loop surface, and the structure in which the four layers are intertwined and connected to each other has superior structural density and stability compared to single-sided weft knitted fabrics or woven fabrics. Can be ensured. At the time of knitting, the elastic yarn is preferably located in the back wing, and both the needle loop surface and the sinker loop surface are located in the inner layer, thereby preventing the wear and improving the durability. In the case of a fabric knitted with three ridges, the fabric is divided into a total of 6 layers from the front to the back. The front needle loop surface, the intermediate needle loop surface, and the rear needle loop surface These are the rear sinker loop surface, the intermediate sinker loop surface, and the front sinker loop surface. In a fabric knitted with three heels, the front heel and the intermediate heel preferably use a threading system with one loop and one wrap and wrap in the opposite direction, thus preventing the fabric from being too thick On the other hand, the stability of the fabric structure can be improved.

  In the present invention, ordinary refining, dyeing, and finishing are performed on the knitted raw knitted fabric, and specific processing conditions are not particularly limited. By using a water-absorbent soft resin during finishing, it gives the fabric a soft and comfortable texture and excellent water absorption. The water-absorbing soft resin here is a resin finishing agent having a hydrophilic group and having a lubricating effect, and a commercially available product may be used directly or may be synthesized by a known technique in this field. The amount is adjusted according to the fiber composition of the fabric, and is preferably 5 to 30 g / L, more preferably 10 to 20 g / L.

When actually worn, a delayed recovery phenomenon occurs in the fabric during repeated stretching movements. In order to eliminate this phenomenon, in the present invention, the elastic fabric is formed into a cylindrical shape having a diameter of 10 cm and a height of 5 cm, and the expansion and contraction repetitive motion is simulated within the 50% extension range under the expansion / contraction speed condition of 3 times / second. During the exercise, it was found that the cylindrical fabric was recessed and deformed by delayed recovery, and the deformed fabric cylindrical edge formed a sealed area, that is, a deformation area caused by delayed recovery, along with the vertical position. In order to achieve excellent motion following ability, in the present invention, the sagging area formed by denting the contour portion of the fabric is preferably 2 cm ² or less, more preferably 1.5 cm ² or less.

  Preferably, when a garment manufactured with the fabric of the present invention is worn, the clothing pressure of the intermediate portion of the thigh in a stationary state is 1.5 to 2.0 kPa, and the recovery stress of the fabric of the corresponding portion is 1.5 to Measured to be 3.0N. Within the above range, wearing comfort can be ensured and vibration of the thigh muscles can be effectively suppressed.

  Preferably, the tear strength of the fabric of the present invention is measured to be 9.8 N or more under the test conditions of JIS L 1096: 2010 D method, and the fabric of the present invention is tested under the test conditions of JIS L 1096: 2010 A method. The burst strength is measured to be 290 kPa or more. Within the above range, tearing and rupturing are unlikely to occur even if a garment made of the fabric is worn or undressed multiple times.

  Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. The characteristic index according to the example was measured by the following method.

  (1) The depression angle between the sinker loop and the knitting direction

  1. A sample having a size of 150 mm × 150 mm was cut, and the sample was observed at an enlargement ratio of 20 using a SEM electron microscope or a digital microscope.

  2. Preferably, two needle loops are selected from any knitting direction and there are 25-50 loops spaced between them in the knitting direction. Mark points are marked at the highest points of the needle loop bodies of the two selected needle loops, and these two mark points are connected. The obtained straight line is a reference line in the knitting direction of the needle loop. And a reference line for measuring the angle of the sinker loop.

  3. 12 needle loops are randomly selected at the top, bottom, left and right positions of the sample, 3 needle loops are selected for each position, and different positions (for elastic or inelastic threads) with the protractor The included angle between the sinker loop and the reference line (or a parallel line of the reference line) was measured, and the average value was defined as the included angle between the sinker loop (for elastic yarn or inelastic yarn) and the knitting direction.

  (2) Slack area

  Meaning: The size of the area of the deformed portion caused by delayed recovery while the fabric is repeatedly stretched under specific speed and stretch conditions. The smaller the value, the higher the movement followability of the fabric. A specific method is as follows.

  Test device: Dematcher type repeated fatigue tester DC-210 type (manufactured by Daiei Scientific Instruments)

  1. Sampling: At any part of the fabric, measure the length 350 mm in the horizontal direction and mark the line, measure the length 120 mm in length, write the mark line, cut along the mark line, length 350 mm × width A 120 mm rectangular sheet-like sample was obtained, and a total of five samples were obtained by the same method.

  2. Sample pre-treatment: The upper and lower edges of the sample are clamped and fixed to the upper and lower clamping parts of the fatigue tester, then the pre-elongation rate is set to 80%, and the expansion and contraction treatment is repeated 10 times to bend in the fabric. Straightened yarn.

  3. Sample cylindricalization and attachment: A pretreated sample was bonded and fixed in the longitudinal direction with tape or the like to form a cylinder. Prepare a pair of annular fixing devices each consisting of a combination of an inner frame and an outer frame, place the tubular sample outside the annular inner frame, then place the annular outer frame outside the tubular sample, and screw A cylindrical test tool having an effective diameter of 10 cm and an effective height of 5 cm was obtained. Furthermore, it is necessary to keep the fabric flat all the time without being sagging during the whole process of attaching, fixing and fixing it repeatedly, and also avoiding excessive tension, i.e. preventing fabric tension. By this, the influence on the later test results can be avoided.

  4). Test: The maximum elongation rate of the fabric is set to 50%. Specifically, as a test procedure, low speed (1 time / second) → medium speed (2 times / second) → high speed (3 times / second) → medium speed (2 times / second) → low speed (1 time / second), and each stretching speed is tested for 1 minute. In the whole process of the test, a high-speed camera is used for shooting and recording. The high-speed camera used here is a camera having a frame rate of 100 to 1000 fps.

5). Quantification: The sagging area produced under high speed (3 times / second) condition is an evaluation index of the motion following ability of the present invention. The above-mentioned fabric is subjected to a stretching test for 1 minute under a high speed (3 times / second) condition, and then an image taken when recovering to the initial position is selected and printed. The area of the deformed portion (unit: cm ² ) is measured on the printing paper using an area meter or other image processing tool. In addition, according to the same test method, the sagging area under low speed (1 time / second) and medium speed (2 times / second) conditions was measured, and the data measured under each speed condition were compared and analyzed. Evaluate the follow-up of the fabric under various speed conditions. Further, based on these data, a relationship curve between the sagging area and the corresponding expansion / contraction speed may be created, and the curve change tendency may be observed to determine the superiority or inferiority of the fabric's motion following ability.

  6). Test of N number and deviation value: Each of the five samples is tested in the above steps 1 to 5. If the data is valid, the average value is taken as the test result of the sag area of the present invention. Whether or not the data is valid is determined by the coefficient of variation of the data. The variation coefficient of one set of data is obtained by dividing the standard deviation value and the average value of the data of the set, that is, variation coefficient = standard deviation value / average value, and the variation coefficient of one set of test data is 0. If it is less than 1, it is considered valid data, otherwise it is retested.

  (3) Clothes pressure

  Meaning: Contact pressure of clothes on the human body. The smaller the numerical value, the smaller the pressure on the human body part of the clothes, which is disadvantageous for suppressing muscle vibration. Using a Pressure Converter-5S3037-5S garment pressure measuring device manufactured by AMI Japan, a sample having a length of 500 mm and a width of 100 mm is sewn with 50 mm left and left, and a cylindrical test piece having a peripheral length of 400 mm. Next, a cylindrical test piece is placed flat in the middle part of the dummy thigh and stretched in the circumferential direction to 500 mm (with a corresponding wear elongation of 25%), and tested three times. The average value was taken.

  (4) Recovery stress

  Meaning: The stress when the fabric tries to recover to the initial position after being pulled. The larger the value, the higher the fabric recoverability. The test method is as follows.

  a. Samples: 100 mm wide × 150 mm long, 6 (of which 3 were used for the elongation test and 3 were used for the recovery stress test).

  b. Using an electronic universal tensile testing machine (MTS (China) Co., Ltd., model number CMT6103) equipped with an automatic recording device, the clamp width was set to 2.54 cm, the pitch was set to 7.6 cm, and the initial value was 29 mN (3 g) A load was applied.

  c. The tensile rate is 10 cm / min and the tensile strength is 10 N, the corresponding elongation amount is read, and the elongation rate is obtained. The average value obtained by measuring three samples in the same direction was defined as the final elongation.

  d. The sample was pulled to 80% of the elongation obtained in Step c at a pulling speed of 10 cm / min, left for 1 minute, returned to the original position at the same speed, and left for 3 minutes.

  e. After repeating the operation of step d 5 times, a correspondence curve between the elongation stress and the elongation rate is created based on the data automatically recorded by the apparatus, and the recovery stress corresponding to the recovery to the elongation rate of 25% The three samples were tested according to the above method, and the average value was used as the test result of the recovery stress of the present invention.

  (5) Tear strength

  The test is performed according to JIS (Japanese Industrial Standards) JIS L1096: 2010 D method. The larger the numerical value, the higher the tear strength of the fabric and the less the phenomenon of tearing.

  (6) Burst strength

  The test is performed according to JIS (Japanese Industrial Standards) JIS L1096: 2010 A method. The larger the value, the higher the bursting strength of the fabric and the less likely it is to burst.

  Example 1

  In RSE4 Raschel warp knitting machine (gauge E32, 136 inches wide), 40D-34f-nylon FDY (manufactured by Toray Synthetic Fibers Co., Ltd.) is used as the front yarn, and 100D ordinary spandex bare yarn (manufactured by Huafeng Co., Ltd.) is used as the back yarn. A tricot / chain structure with two front needles overlapped and one back needle overlapped, and the front and back knitted together to obtain a raw fabric, and further refined and dyed Then, the dough of the present invention is obtained by finishing processing, and specifically shown in Table 1.

  Purification: caustic soda 2 g / L, purification agent 2 g / L, 95 ° C. × 20 min, bath ratio 1:20; dyeing: 95 ° C. × 30 min, reductive washing: 80 ° C. × 20 min.

  Example 2

  In HKS4 high-speed tricot warp knitting machine (gauge E32, width 136 inches), 20D-12f-cation dyeable polyester FDY (abbreviated as CD-PET, manufactured by Toray Synthetic Fibers Co., Ltd.) is a front yarn, 140D plain spandex bare yarn (Hyosun Co., Ltd.) is used as the back side thread, the front side is overlapped by 1 to 2 needles, the back side is overlapped by 1 needle, it is a non-wrapped / chain structure, and both the front side and the back side are braided throughout. Thus, an unprocessed dough is obtained, and further refined, dyed and finished to obtain the dough of the present invention.

  Purification: caustic soda 2 g / L, purification agent 2 g / L, 95 ° C. × 20 min, bath ratio 1:20; dyeing: 120 ° C. × 60 min, reductive washing: 80 ° C. × 20 min.

  Example 3

  The dough of the present invention was obtained in the same manner as in Example 2 except that a 280D soft elastic spandex bare yarn (manufactured by TORAY OPELONTEX) was used as the back silk thread, and one jump and one jump were obtained.

  Example 4

  The fabric of the present invention was obtained in the same manner as in Example 1 except that braiding was performed on an HKS4 high-speed tricot warp knitting machine (gauge E32, width 136 inches).

  Example 5

  The fabric of the present invention was obtained in the same manner as in Example 2 except that 140D soft elastic spandex bare yarn (manufactured by TORAY OPELONTEX) was used as the back silk thread, and the results are shown in Table 1.

  Example 6

  The fabric of the present invention was obtained in the same manner as in Example 1 except that the braiding was performed on an RSE4 Raschel warp knitting machine (gauge E28, 136 inches wide).

  Comparative Example 1

  A fabric was obtained in the same manner as in Example 5 except that braiding was performed on an RSE4 Raschel warp knitting machine (gauge E32, width 136 inches).

  Comparative Example 2

  A fabric was obtained in the same manner as in Example 4 except that braiding was performed on a HKS4 high-speed tricot warp knitting machine (gauge E28, 136 inches in width).

  Comparative Example 3

  40D-34f-nylon FDY is front thread (manufactured by Toray Synthetic Fibers Co., Ltd.), 100D ordinary spandex bare thread (manufactured by Huafeng Co., Ltd.) is the back thread, the front thread overlaps two needles, and the back thread consists of two needles A fabric was obtained in the same manner as in Example 1 except that a raw fabric was obtained by braiding with an overlapped tricot / tricot structure.

According to the table above,
(1) As is clear from Example 1 and Example 4, under the same conditions, the fabric having a depression angle of 9 ° between the spandex sinker loop and the knitting direction and the depression angle between the spandex sinker loop and the knitting direction are When compared with a fabric of 2 °, the latter has a small sagging area and excellent movement following ability.

  (2) As is clear from Example 2 and Example 5, when a fabric using ordinary spandex and a fabric using soft elastic spandex were compared under the same conditions, the latter had a small sagging area and a motion following ability. Is excellent.

  (3) As is clear from Example 3 and Example 5, under the same conditions, a fabric having a spandex distribution density of 28 w / inch was compared with a fabric having a spandex distribution density of 74 w / inch. The area is small and the movement following ability is excellent.

  (4) As is clear from Example 4 and Example 6, under the same conditions, a fabric having a depression angle of 14 ° between the inelastic yarn (nylon) sinker loop and the knitting direction, and an inelastic yarn (nylon) sinker When the fabric having a depression angle between the loop and the knitting direction of 7 ° is compared, the former has a small sagging area and excellent movement followability.

  (5) As is clear from Comparative Example 1 and Example 5, under the same conditions, a fabric having a depression angle between the spandex sinker loop and the knitting direction of 11 ° (over 10 °), the spandex sinker loop and the knitting direction When compared with a fabric having a depression angle of 5 °, the former has a much larger sagging area and inferior motion following ability.

  (6) As is clear from Comparative Example 2 and Example 4, under the same conditions, a fabric having a depression angle between the nylon yarn sinker loop and the knitting direction of 4 ° (less than 5 °), and a nylon yarn sinker loop When the fabric having a depression angle of 14 ° between the knitting direction and the knitting direction is compared, the former has a much larger sagging area and is inferior in motion following ability.

  (7) As is clear from Comparative Example 3 and Example 1, under the same conditions, the included angle between the spandex sinker loop and the knitting direction is 12 ° (over 10 °), and the nylon yarn sinker loop and the knitting direction A fabric having an included angle of 4 ° (less than 5 °) and a fabric having an included angle of 9 ° between the spandex sinker loop and the knitting direction and an included angle of 14 ° between the nylon thread sinker loop and the longitudinal direction. In comparison, the former has a much larger sagging area and is inferior in motion tracking.

Claims (10)

  A warp knitted fabric knitted from an inelastic yarn and an elastic yarn, wherein a depression angle between the sinker loop of the elastic yarn and the knitting direction is 0 ° to 10 °, and between the sinker loop of the inelastic yarn and the knitting direction. A dough with motion following characteristics characterized in that the depression angle is 5 ° to 85 °.   The cloth having movement following ability according to claim 1, wherein the elastic yarn is a polyurethane fiber.   The polyurethane fiber is obtained by reacting a polyether diol having a side chain, a diisocyanate compound and two or more diamine compounds, and ethylenediamine contained in the diamine compound and a branched form having 3 to 5 carbon atoms. The dough having motion following ability according to claim 2, wherein the molar ratio with the aliphatic diamine compound is 98: 2-82: 18.   The cloth with movement following ability according to claim 1 or 2, wherein the content of the elastic yarn is 50 to 90% by weight.   The cloth having motion following ability according to claim 1 or 2, wherein a density distribution range of the elastic yarn is 30 to 200 w / inch.   The cloth having movement following ability according to claim 1, wherein the inelastic yarn is a chemical fiber filament having an elongation of 5 to 50%.   The fabric with motion following ability according to claim 6, wherein the fineness of the inelastic yarn is 10 to 100 denier. ^{2. The} slack area where the contour portion is recessed is 2 cm ² or less in a 50% extension range and 3 times / second expansion / contraction conditions after forming a cylindrical shape having a diameter of 10 cm and a height of 5 cm. Fabric with the described motion following ability.   When wearing clothing made of the fabric, the clothing pressure at the middle part of the thigh in a stationary state is 1.5 to 2.0 kPa, and the recovery stress of the fabric at the corresponding part is measured to be 1.5 to 3.0 N. The dough provided with the movement following ability according to claim 1.   In the test conditions of JIS L 1096: 2010 D method, the tear strength of the fabric is measured to be 9.8 N or more, and in the test conditions of JIS L 1096: 2010 A method, the burst strength of the fabric is 290 kPa or more. The cloth with motion following ability according to claim 1, wherein the cloth is measured.

Images