JP2019214809A - Jersey fabric, clothing and cover composed of jersey fabric - Google Patents

Abstract

To provide a jersey fabric hard to become getting heavy by absorbing water, and a clothing and a cover composed of the jersey fabric.SOLUTION: The jersey fabric formed by knitting fibers coated with a water-repellent agent has a relatively stitch-large and thin thinly knitted part 3, and a relatively stitch-small and thick thickly knitted part 4. The thickly knitted part 4 is formed into a network, and the thinly knitted part 3 is formed inside the meshes of the net of the net-like thickly knitted part 4. The thinly knitted part 3 and the thickly knitted part 4 are formed so as to repeat periodically in a surface direction. The thickly knitted part 4 has a net-like calendar-processed part formed by pressing by calendar processing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a jersey fabric that is hard to absorb water and hard to be heavy, and to a garment and a cover made of the jersey fabric.

  Jersey fabrics are knitted fabrics and are used for a wide variety of applications such as underwear, outer garments, athletic clothes, work clothes, and the like due to their elasticity and the like (see Patent Document 1 and the like).

JP 2006-002283 A

  Since the jersey fabric is a knitted fabric and has countless stitches, when rain is hit, water enters the stitches, so that the jersey fabric becomes heavy due to water absorption. Some jersey fabrics used for athletic wear and the like are made of fibers whose surface is covered with a water repellent (hereinafter referred to as water repellent fibers). However, even in the jersey fabric using the water-repellent fiber, each fiber simply repels water and inevitably infiltrates water into the stitch.

  An object of the present invention is to provide a jersey fabric which is hard to absorb water and is hard to be heavy, and a garment and a cover made of the jersey fabric.

  In order to achieve the above object, the present invention relates to a jersey fabric formed by knitting a fiber whose surface is coated with a water repellent, wherein a stitch is relatively large and a thin stitch is relatively thin. There is a small thick thick knit portion, the thick knit portion is formed in a net shape, and the thin knit portion is formed inside the mesh of the mesh thick knit portion, the thick knit portion and the thin knit portion Are periodically and repeatedly formed in the surface direction, and have a calendered portion in which the thick knitted portion is pressed by calendering to form a net shape.

  The jersey fabric according to the present invention is made of water-repellent fiber, and the water-repellent fiber itself has a water-repellent effect. The thick stitch portion (calendered portion) has small stitches and the surface is smoothened by calendering. Even if water touches the jersey fabric, the water that has touched the calendered portion flows down along the surface of the calendered portion. The thin stitch has large stitches, making it difficult to store water through it. Thus, the jersey fabric is hard to absorb water and hard to store water. Therefore, it is hard to be heavy.

FIG. 2 is a plan view schematically illustrating the surface of the jersey cloth according to the embodiment. Schematic diagram of a cross section of jersey fabric according to one embodiment Enlarged photograph of the surface of the jersey fabric according to one embodiment (surface lighting) Enlarged photograph of the surface of jersey fabric according to one embodiment (backside illumination) Enlarged photo of the surface of the jersey fabric according to one embodiment (double-sided lighting) Enlarged photo of the surface of the jersey fabric during the manufacturing process The figure showing an example of the clothing which consists of the jersey cloth which concerns on one Embodiment of this invention. The figure showing an example of the cover which consists of jersey cloth concerning one embodiment of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings.

-Jersey fabric-
FIG. 1 is a plan view schematically showing the surface of a jersey fabric according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a cross section of the jersey fabric. 3 to 5 are enlarged photographs of the surface of the jersey cloth according to one embodiment of the present invention. Each photograph in FIGS. 3 to 5 was taken under different conditions so that the surface shape of the fabric could be easily understood. The photograph of FIG. 3 is a photograph taken with normal light so that the surface (appearance) is easy to understand, and the photograph of FIG. 4 is a photograph taken with backlight so that the stitches are easy to understand. FIG. 5 is a photograph taken by simultaneously illuminating the front and back of the fabric. FIG. 6 is an enlarged photograph of the surface of the jersey fabric during the manufacturing process (specifically, before calendering).

  The jersey fabric 1 shown in FIGS. 1 to 5 is a knitted fabric knitted with fibers (for example, polyester fibers), and has a net-shaped calendered portion 2 formed by calendering and heating and compressing. The fibers constituting the jersey fabric 1 are the above-described water-repellent fibers, and the surface of each fiber is covered with a water-repellent agent. The jersey fabric 1 includes a thin stitch portion 3 having a relatively large stitch and a thick stitch portion 4 having a relatively small stitch (relative to the thin stitch portion 3). As an example, the thickness of the thin knitted portion 3 is about 0.2-0.4 mm, and the width (for example, the diameter measured in the left-right direction in FIG. 1) is about 1.2-1.6 mm. For example, the thickness of the thick knitting portion 4 is about 0.4-0.6 mm, and the width (for example, the distance between the thin knitting portions 3 adjacent on the left and right in FIG. 1) is about 1.6-2.0 mm. Appropriate dimensions of the thin knitting portion 3 and the thick knitting portion 4 are not necessarily limited to these, but when the dimensions are set as illustrated, the strength of the jersey fabric 1 is sufficiently ensured while achieving the desired effect.

  The thick knitted portion 4 has the calendered portion 2 formed on the surface as described later, and functions as a frame for securing the strength of the jersey fabric 1. The lightly knitted portion 3 and the thickly knitted portion 4 are periodically formed repeatedly in the surface direction of the jersey fabric 1 (a first direction along the surface and a second direction crossing the first direction, for example, the vertical and horizontal directions). The thick knitting portion 4 is formed in a stitch shape and connected to each other, while the thin knitting portion 3 is formed inside the mesh of the thick knitting portion 4 and is surrounded by the thick knitting portion 4 all around. ing. Therefore, the adjacent thin knitted portions 3 are not continuous and are separated by the thick knitted portions 4.

  The loop (Lina) 4a (FIG. 2 and the like) forming the thick knitting portion 4 has a larger cross section than the loop (Lina) 3a (FIG. 2 and the like) forming the thin knitting portion 3. For example, when the loop 3a and the loop 4a are formed of the same number of water-repellent fibers, the loop 4a is formed by using a fiber thicker than the water-repellent fiber constituting the loop 3a. 4a can be made thicker. In the present embodiment, the thicknesses of the loops 3a and 4a are differentiated not by the thickness of the fibers but by the number of fibers. That is, the number of fibers used for one loop 4a is larger than the number of fibers used for one loop 3a. By giving a difference in the thickness of the loops 3a and 4a in this way, compared to the stitches of the thick knitting portion 4 knitted by the thick loop 4a, the knitting is performed using the thin loop 3a at the same pitch as the thick knitting portion 4. The stitch of the thin knitting portion 3 is greatly opened (FIG. 4 and the like). At the same time, by using the loops 3a and 4a having different thicknesses, the thick knitting portion 4 has a sufficient thickness with respect to the thin knitting portion 3 (FIGS. 2, 3 and the like).

  The size of the stitches of the thick stitch portion 4 is small, and the range in which the surface tension that makes water beaded due to the water-repellent effect of the water-repellent fibers exceeds the force that draws water into the stitches by capillary action Is set with The stitch of the thick knitted portion 4 is preferably small, but may be approximately the same as the size of the stitch of a general jersey fabric used for athletic clothing, for example. On the other hand, the stitches of the thin knitted portion 3 are relatively large, and the surface tension that makes water beaded due to the water-repellent effect of the water-repellent fiber reduces the force of drawing water into the stitches by capillary action. It is set within the range that cannot be reached. In other words, the stitches of the thin knitted portion 3 are opened in such a size that water drops cannot be held strongly, for example, in a size of about 0.1 to 0.3 mm.

  Further, both the thin knitting portion 3 and the thick knitting portion 4 are formed in a plurality (two layers in FIG. 2) of layer shape overlapping in the thickness direction of the jersey cloth 1. The outermost layer (the lowermost layer in the figure) on the back surface is formed uniformly with a thin loop 3a without distinction between the thin knitted portion 3 and the thick knitted portion 4. For example, if the jersey fabric 1 is placed on a flat surface with the back surface facing down, the back surface contacts the flat surface as a whole. As for the thin knitted portion 3, the outermost layer on the surface (when three or more layers of cloth are used, the intermediate layer between the outermost layers on the front and back sides is the same) is also formed of a thin loop 3a. On the other hand, at least the outermost layer of the thick knitted portion 4 is constituted by a thick loop 4a, and the surface of the thick knitted portion 4 projects in the direction away from the back surface with respect to the surface of the thin knitted portion 3; Have a clear uneven surface (FIG. 2, etc.). For example, if the jersey fabric 1 is placed on a flat surface with the surface facing down, the surface comes into contact with the flat surface only at the thick knitted portion 4 and the thin knitted portion 3 floats from the flat surface. In the case where the thick knitted portion 4 has three or more layers, the intermediate layer between the outermost layers on the front and back may be formed by any of the loops 3a and 4a, but by using the thick loop 4a for the intermediate layer, the thin knitted portion 3 is formed. And the unevenness of the surface of the thick knitting portion 4 becomes larger. Further, the fiber density of the thick knitting portion 4 is further increased, the strength is increased, and water is less likely to enter the stitch.

  In the present embodiment, by making a difference in the height (thickness of the cloth) of the surface of the jersey cloth, the thick knitted portion 4 is selectively heated and compressed (pressed) when the jersey cloth is calendered. Can be done. This is because heating and compression acting on the thin knitted portion 3 while being guarded by the thick knitted portion 4 can be suppressed. As described above, the calendered portion 2 is formed mainly by selectively inputting heat to the surface of the net-shaped thick knitting portion 4 to form the calendered portion 2. The knitted portion 3 can have a fabric configuration in which it remains in the mesh portion of the calendered portion 2. After calendering, the thickness of the thick knitted portion 4 decreases compared to before, but after processing, the back surface of the jersey fabric 1 is flat, and the surface has the thick knitted portion 4 in the thickness direction with respect to the thin knitted portion 3. The protruding uneven shape is maintained.

  In addition, about calendering, only the roll which contacts the surface of the jersey fabric 1 among the two rolls which sandwich the fabric is heated, and the roll which contacts the back surface is not heated. As a result, only the surface of the calendered portion 2 is thinned and solidified by heating to be smoothed. The thickness of the thick knitting portion 4 allows the jersey fabric 1 to be calendered twice (a thickness enough to withstand the two calenders is secured). The surface of the portion 4 can be made smoother. Common jersey fabrics are eroded after two calendering operations. The stitches of the calendered portion 2 are smaller than the stitches of the thick stitch portion 4 so that water does not easily enter. In addition, the elasticity of the calendered portion 2 itself decreases after melting and solidification, and the properties of the knitted fabric are different from those before calendering. However, since the calendered portion 2 has a net shape, when the jersey fabric 1 is pulled in the surface direction, the mesh shape changes following the pulling, so that the stretchability of the jersey fabric 1 is secured. You. On the other hand, the surface of the thin knitted portion 3 is guarded by the thick knitted portion 4 and does not come into strong contact with the heat roll at the time of calendering, so that heat input is suppressed and the properties before calendering are maintained. In addition, since the non-heated roll contacts the back surface of the jersey fabric 1 during calendering, the back surface of the jersey fabric 1 regardless of the thin knitted portion 3 and the thick knitted portion 4 has the properties before calendering. Is maintained.

-Clothing-
FIG. 7 is a diagram illustrating an example of clothing made of jersey fabric according to one embodiment of the present invention. The garment 10 shown in FIG. Although FIG. 1 illustrates an exercise suit worn on the upper body (jersey as exercise suit), it is needless to say that the jersey fabric 1 can be applied to clothes worn on the lower body, and is not limited to a jersey as exercise suit. The present invention can be applied to various clothes such as other sports clothes and various work clothes. In particular, the downward end (the cuffs 11 and the hem 12) is formed while the jersey fabric 1 is cut (the cuffs 11 and the cuffs 12 are formed on the cut surface of the jersey fabric 1). Is characteristic. The cuffs 11 and the hem 12 of the garment 10 are not sewn by folding back the cloth as in general sportswear. Other edges (for example, a collar) of the garment 10 can also be formed with a cut surface of the jersey cloth 1.

−Cover−
FIG. 8 is a diagram illustrating an example of a cover made of jersey fabric according to one embodiment of the present invention. The cover 20 shown in FIG. FIG. 1 exemplifies a cover for covering the parabolic antenna 21 installed outdoors. In FIG. 1, the parabolic antenna 21 is schematically illustrated by a reflecting mirror portion and a support. The cover 20 is formed, for example, in a bag shape using the jersey cloth 1, and is configured to cover the reflecting mirror from the reflecting surface (concave surface) side. The opening of the cover 20 may be narrowed by rubber or the like, or may be tightened by a rope or the like. In addition, an appropriate tension acts on a portion of the cover 20 that covers the reflecting surface of the reflecting mirror to prevent wrinkles from occurring. Although FIG. 1 shows an example in which the cover 20 of the parabolic antenna 21 is formed of the jersey cloth 1, covers of passenger cars, motorcycles, and other facilities installed outdoors can be formed of the jersey cloth 1.

-Effect-
(1-1) The jersey fabric 1 is made of water-repellent fiber, and the water-repellent fiber itself has a water-repellent effect. The thick stitch 4 (calendered portion 2) has a small stitch and the surface is smoothed by calendering. Even if water (rainwater, sweat or other water) touches the jersey fabric 1, the calendered portion 2 is touched. Water flows down along the surface of the calender 2. On the other hand, the thin knitted portion 3 has a large stitch, and it is difficult to store water through the water. Thus, the jersey fabric 1 is hard to absorb water and hardly store water. Therefore, it is hard to be heavy. In addition, due to the smoothness of the calendered portion 2, not only liquid but also solid moisture such as snow hardly adheres to the jersey fabric 1.

  (1-2) In sports that can be exposed to rainwater for a long time, such as a marathon or soccer, or sports in which the wearer sweats a lot, if the clothes become heavy due to the absorption of water, the wearer's physical strength is wasted. On the other hand, in the case of the athletic gown made of the jersey cloth 1, the water (rainwater, sweat, and other water) that has touched the calendered portion 2 flows down through the calendered portion 2 and the water that has touched the thin knitted portion 3 After passing through the jersey fabric 1, it flows down along the wearer's skin and the calendered portion 2. Therefore, the clothes are hard to be heavy even under rainfall or the like, and an effect of suppressing waste of physical strength of the wearer can be expected.

  Moreover, when a general knitted fabric is cut, the fibers are unraveled as they are, causing a wire to run, so that it is necessary to fold and sew the fabric. Therefore, the fibers are not easily frayed and the tensile strength is high. For example, even if the fibers of the thin knitted portion 3 are frayed, the thin knitted portion 3 is surrounded by the calendering portion 2 and the range of the line is limited to a very small range. Since there is no need to fold and sew the cuffs and the hem, the cuffs 11 and the hem 12 can be formed with the cut surface of the jersey fabric 1 as in the clothes 10 of FIG. Since there is no fold, the cuff 11 and the hem 12 of the garment 10 are exposed to a portion that blocks the water that flows down, and the water easily flows down in synergy with the above-described effect.

  Of course, as described above, since the calendered portion 2 is formed in a net shape and the jersey fabric 1 has sufficient elasticity, the easiness of movement as clothing can be sufficiently ensured. In addition, since the cuffs and the hem may be kept in a state in which the jersey fabric 1 is cut, the man-hours and cost for manufacturing the garment can be reduced, and the weight of the garment can be reduced. In addition, since it is not necessary to turn the cuffs back, discomfort such as tightening and rubbing of the cuffs is reduced, and when used for athletic wear, there is a possibility that the user can easily concentrate on the competition.

  (1-3) When the cover 20 of the reflector of the parabolic antenna 21 is made of the jersey cloth 1 as shown in FIG. 8, the following excellent effects can be obtained due to the characteristics of the jersey cloth 1. For example, when snow or ice accumulates on the reflecting surface of the reflector of the parabolic antenna due to snowfall or the like, radio wave interference occurs. In order to eliminate the radio interference, it is generally necessary to manually remove ice and snow from the reflecting surface. Parabolic antennas may be installed for emergency communications in addition to receiving satellite broadcasts, and may be used for satellite communications when communications via a normal wired communication network are interrupted in an emergency. There is. In such an emergency, it is desired to avoid a situation in which the parabolic antenna does not function due to adhesion of ice and snow. At present, there are cases where a heater is attached to a parabolic antenna to melt ice and snow, but this is a large-scale accessory for a parabolic antenna that is not normally used. Also, the heater itself needs to be periodically maintained, and the maintenance cost tends to be excessive with respect to the frequency of use of the parabolic antenna. Therefore, there is a idea to cover the parabolic antenna to suppress icing or the like. For example, as described in Japanese Patent Application Laid-Open No. 2011-176791, the cover of the parabolic antenna is usually made of resin, and if it is permanently installed, it will receive the wind properly and the support of the parabolic antenna will be unnecessarily burdened.

  Therefore, by forming the cover 20 of the parabolic antenna 21 with the jersey cloth 1 as shown in FIG. 8, the air resistance is greatly reduced as compared with the resin cover because the stitch allows the wind to pass through, and the load on the support of the parabolic antenna 21 is reduced. Significantly relieved. If the cover is made of a normal knitted fabric, rainwater will be stored in the stitches and a water film will be formed on the front of the reflector, which may cause radio interference as in the case of snowfall, etc. Since the fabric 1 does not store water as described above, such a problem hardly occurs. That is, rainwater flows down at high speed along the calendered portion 2 of the jersey cloth 1 and the reflecting surface of the reflecting mirror, so that a water film enough to cause radio interference is not continuously formed. Further, since snow is caught by the entire jersey cloth 1 including the thin knitted portion 3, the adhesion of ice and snow to the reflecting surface of the reflecting mirror can be suppressed.

  When the inventor of the present application attached the cover 20 made of the jersey fabric 1 to an outdoor parabolic antenna for a certain period of time and demonstrated the effect, even when snow fell, no snow was attached to the cover 20. It is presumed that snow accumulation was suppressed due to the smoothness of the calender processing section 2. In some cases, communication was interrupted due to the formation of a water film during heavy rainfall, but communication recovered shortly after the rain weakened. When a cover was made in the same manner with a normal jersey fabric and used for a parabolic antenna, it was confirmed that once a water film was formed on the normal jersey fabric, the communication interruption state continued for a long time. It has also been demonstrated that a cover 20 made of jersey fabric 1 has a better effect than a cover made of normal jersey fabric. There was also a case where temporary snow accumulation was seen on a part of the jersey fabric 1. However, when the snow covered to a certain extent, it slipped and fell, and the thin remaining snow could be easily wiped off by hand without having to scrape it off. . It was presumed that the snow was easily wiped off with the help of the unique elasticity of the knitted fabric. Further, a cover made of a normal knitted fabric may be broken if added weight due to snow accumulation or water absorption. On the other hand, in the case of the jersey fabric 1 according to the present embodiment, the high-strength calendered portion 2 is formed in a net shape, and even if it thickly snows, it does not tear by a small amount. . The maintenance cost is much lower than when using a heater.

  (2) Also, since the back surface of the jersey fabric 1 is uniformly formed flat with the thin loops 3a, and the property change due to the calendering is suppressed, the clothes 10 made of the jersey fabric 1 are peculiar to a knitted fabric. The touch can be maintained.

  (3) Since the large thin knitted portion 3 of the stitch is arranged on the entire jersey fabric 1, the air permeability is extremely good, and the quick drying property is also excellent in synergy with the above-mentioned difficulty in storing water.

  (4) General jerseys for athletic clothes are made of flat fabrics, and the patterns cannot be expressed without using colors, whereas the clothes 10 in FIG. Because of the provision of the part 2, the jersey has aesthetics that are not present in a conventional jersey.

  (5) Even if the water-repellent effect of the water-repellent fiber weakens with use, as long as the water-repellent is not completely removed, the water-repellent effect is restored by using a commercially available water-repellent. And maintenance for maintaining water resistance is easy. In addition, although the water repellent does not immediately drop off even when washed with a general laundry detergent, a detergent that selectively removes dirt without dropping the water repellent (for example, NIKWAX (registered trademark) series manufactured by Evernew Co., Ltd.) ) Maintains water repellency even after repeated washing. In this case, the water-repellent effect can be maintained permanently with almost no work of restoring the water-repellent effect.

DESCRIPTION OF SYMBOLS 1 ... Jersey cloth, 2 ... calender processing part, 3 ... thin knitting part, 4 ... thick knitting part, 3a ... loop of thin knitting part, 4a ... loop of thick knitting part, 10 ... clothes, 11 ... cuffs, 12 ... hem Point, 20 ... Cover, 21 ... Parabolic antenna

Claims (7)

A jersey fabric formed by knitting a fiber whose surface is coated with a water repellent,
There is a relatively thin stitch with a large stitch and a relatively thick stitch with a relatively small stitch.
The thick knitting portion is formed in a mesh shape, and the thin knitting portion is formed inside the mesh of the mesh thick knitting portion, and the thin knitting portion and the thick knitting portion are periodically formed in a surface direction. It is formed repeatedly,
A jersey fabric comprising a calendered portion in which the thick knitted portion is pressed by calendering to form a net.   The jersey fabric according to claim 1, wherein the back surface is uniformly formed flat, while the front surface is formed unevenly by the thick knit portion and the thin knit portion.   The jersey fabric according to claim 1, wherein the number of fibers per loop of the thick knitted portion is larger than the number of fibers per loop of the thin knitted portion.   Clothing comprising the jersey fabric according to any one of claims 1-3.   The garment according to claim 4, wherein a cuff or a hem is formed while the jersey fabric is cut.   A cover made of the jersey fabric according to any one of claims 1-3.   7. The cover of claim 6 for a parabolic antenna.