WO1995012019A1

WO1995012019A1 - Method of knitting two-plane type warp knitted fabric and knitting structure

Info

Publication number: WO1995012019A1
Application number: PCT/JP1994/001817
Authority: WO
Inventors: Yoshinori Murakami; Shirou Nakase
Original assignee: Nippon Mayer Co., Ltd.
Priority date: 1993-10-27
Filing date: 1994-10-27
Publication date: 1995-05-04
Also published as: TW253913B; KR960700369A; JP3136342B2; CN1115992A

Abstract

The invention relates to a method of knitting a two-plane type wrap knitted fabric which comprises two opposed foundation clothes and connection fibers for connecting and knitting the clothes, and a knitting structure. In particular, a two-plane type wrap knitted fabric is obtained, of which a knitting structure enables positive raising of foundation yarns, which are on a back knitting side, among yarns, which constitute the foundation clothes, without being influenced by the connection fibers when raising outer sides of the foundation clothes of the two-plane type warp knitted fabric, that is, the back knitting side. Therefore, at least one of foundation clothes (60) is constituted by a combination of foundation yarns of at least two kinds of knitting compositions such that a direction, in which the other foundation yarns (11) except for at least one kind of foundation yarns in the foundation cloth composition overlap, is opposite to a direction, in which said excluded foundation yarns (12) and the connection fibers (14) overlap. Knitting is performed by setting a supply ratio of said other foundation yarns at overfeed, so that needle loops (11a) of said other foundation yarns are expanded outward. Accordingly, it is possible to raise the needle loops (11a) of the expanded foundation yarns without being affected by the connection fibers.

Description

Description Knitting method of double-sided warp knitted fabric and its knitting structure

〔 Technical field 〕

INDUSTRIAL APPLICABILITY The present invention relates to a double-sided warp knitted fabric which can be suitably used for a space fabric, a garment, etc. This section describes the method of knitting the warp knitted fabric and its knitting structure.

[Background technology]

Conventionally, a two-sided warp knitted fabric mainly knitted by a double lashing machine mainly uses a connecting yarn formed by connecting and knitting the front and rear base fabric structures and the base fabric structure. If it is used for a car sheet or blanket, the connecting yarn is cut between the base fabrics, and the cut connecting yarn is brushed. It has been commercialized by applying it. In addition, by utilizing the thickness, space retention, and elasticity of the three-dimensional structure, bedding, clothing, civil engineering and construction materials, medical products, and other various fields of super surfing. When used as a hook, the connecting thread is cut into a three-dimensional structure without cutting.

In the case of the spacer fabric, it is not possible to obtain high value-added products by enhancing the functions such as heat insulation and heat insulation. Strengthening, for example, raising one or both sides of the fabric to improve heat insulation and heat insulation It was known that the goal could be achieved and that goal could be achieved.

In the case of a sapphire brick, however, the connecting yarn usually has a rigid synthetic fiber monofilament that is rigid enough to maintain good form stability. The filament yarn is used and is exposed on the outside (back side of the knitting) of the base fabric. For this reason, if the brushing is performed from one or both outer sides of the front and rear fabrics, the connecting yarn is mainly pulled by the brushing needles. That is, the required raising, that is, the raising of the ground yarn forming the base fabric is not sufficiently performed, and thus a desired raised state cannot be obtained. o

The present invention solves the above-mentioned drawbacks and does not receive the influence of the connecting yarn when raising the outer side of the base fabric of the double-sided warp knitted fabric, that is, the back side (the needle loop side). A knitting method of a double-sided warp knitted fabric capable of reliably raising any of the ground yarns of the yarn constituting the base fabric on the back side of the knitting; and With the aim of providing a knitted structure, it is easy to obtain a knitted fabric that can be suitably used, particularly for space fabrics, force sheets, etc. Is aimed at 0

[Disclosure of the invention]

The method for knitting a double-sided warp knitted fabric according to the present invention is a method for knitting a double-sided warp knitted fabric comprising two opposing base fabrics and a connecting yarn formed by connecting and knitting the base fabrics. In this case, at least one of the base fabrics is composed of a combination of at least two types of knitting ground yarns, and at least one of the base fabrics has at least one knitted fabric. Remove the ground yarn The direction of the wrap and the direction of the overlap of the removed ground yarn and the connecting yarn are made opposite to each other, and the yarn supply ratio of the other ground yarn is changed to the opposite direction. It is characterized in that the knitted loops of the ground yarn are bulged outward by setting the knitting in a knitted state.

That is, the overwrap direction of the other ground yarns of the ground yarns constituting the base fabric structure as described above, and the open directions of the removed ground yarns and the connection yarns are described. By knitting with the direction of the bar wrap reversed, the tightness of the needle thread of the ground yarn is lessened, which is an advantage. The 21 loop portion of the ground yarn that is twisted in the feed state swells outward.

As a result, in at least one of the base fabrics composed of a plurality of ground yarns, among the constituent yarns of the base fabric structure, the selected other ground yarns are selected. A double-sided warp knitted fabric in which the needle loop portion has a knitted structure bulging outward from the base fabric, that is, a double-sided warp knitted fabric according to the configuration of claim 4. Is obtained.

According to the double-sided warp knitted fabric having this knitting structure, the connecting yarn is not raised by raising the surface on the bulging side of the base fabric. Mainly, the swollen portion of the ground yarn is raised, so that a desired raised state can be easily obtained.

Further, in the knitting of the double-sided warp knitted fabric, the knitting structure of the inner ground yarn of at least two types of ground yarns constituting the base fabric is 1 X 1 lacquer. When the outer ground yarn has a knitting structure of 3 x 1 wrap, the outer ground yarn can be easily swollen, so that the brush can be raised more suitably. Knitting can be performed without any problem. By knitting the knitting structure of the connecting yarn in the form of insertion with respect to the two base fabrics, a needle loop is formed with the connecting yarn with respect to the base fabric. Since the thread is eliminated, this connecting thread does not become the thread to be raised, and does not hinder the raising of the ground thread forming the base cloth.

In addition, by using the synthetic fiber monofilament yarn as the connecting yarn, it is possible to have morphological stability and to raise the surface of the surface. As a result, it is possible to provide a suitable knitted fabric.

[Brief description of drawings]

FIG. 1 is a side view of a main part of knitting of a warp knitting machine having a double-row knitting needle row used for knitting a double-sided warp knitted fabric according to an embodiment of the present invention.

FIG. 2 is a knitting structure diagram showing a disassembled state of the wrapping state of each constituent yarn of the double-sided warp knitted fabric according to one embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view of a double-sided warp knitted fabric knitted based on the knitting structure of the above embodiment.

FIG. 4 is a knitting structure diagram showing a disassembled state of rubbing of each constituent yarn of a double-sided warp knitted fabric according to another embodiment of the present invention.

[Best mode for carrying out the invention]

The knitting method and the knitting structure of the double-sided warp knitted fabric of the present invention will be described based on the drawings.

FIG. 1 shows a main portion of a knitting of a warp knitting machine having a double row of knitting needles used for knitting the double-sided warp knitted fabric of the embodiment. Figure Reference numerals LI to L6 denote guides for guiding the knitting yarn, 7 denotes a front needle hook, and 8 denotes a rear needle hook. 9 is a knitting needle arranged side by side with the front needle hook 7 and forms a front knitting needle row F. 10 is a knitting needle arranged side by side with the rear needle hook 8. Thus, the rear knitting needle row B is formed.

Guides L 1 and L 2 are passed through the ground yarns 11 and 12 for the front base fabric, and guides L 5 and L 6 are passed through the ground yarns for the back base fabric. Thread 15 and 16. The connecting yarns 13 and 14 are passed through the guides L 3 and L 4, but the guide L 3 is not used in the double-sided warp knitted fabric according to the embodiment of the present invention shown in FIG. First, only Guide L4 is used.

The knitting structure of FIG. 2 shows an example of knitting of each component yarn of the double-sided warp knitted fabric according to one embodiment of the present invention. In the figure, the symbols indicate the positions of the knitting needles, F indicates the knitting course position of the front knitting needle row, and B indicates the knitting course position of the rear knitting needle row.

Then, in the knitting of this knitting structure, according to guide L1, the ground yarn 11 alternates between the three stitches in the left and right direction alternately for each course with respect to the front knitting needle row F. An underlap and a one-needle overlap, that is, a 3X1 lap is formed to form a loop, and a guide L2 is used to form a loop. Similarly, the ground yarn 1 2 is in the same direction as the front knitting needle row F in the underlap direction opposite to the guide L1 (one-lap stitch direction). A loop is formed by a wrap and a one-needle overwrap, that is, a 1X1 wrap. Thus, the front fabric (60 in FIG. 3) is formed.

According to the guide L5, the ground thread 15 is moved to the rear knitting needle row B. According to guide L6, the ground yarn 16 is inserted into the knitting needle row B in accordance with the number of underlaps between the five stitches. This constitutes the rear fabric (70 in Fig. 3).

Further, according to the guide L4, the connecting yarn 14 is alternately connected to the front and rear knitting needle rows F and B in order to connect the front base cloth 60 and the rear base cloth 70. A loop is being formed.

As a result, a two-sided warp knitted fabric having a knitting structure in which the front and rear base fabrics are connected by the connecting yarn is knitted. In particular, in order to knit a double-sided warp knitted fabric 50 having a knitting structure as shown in FIG. 3 according to the present invention, one of the ground yarns constituting the knitting structure of the front base fabric 60 is used. Overlay for forming a loop of the ground yarn 11 passed through the guide L1 on the outside (back side of the knitting) as shown in the figure, for example, Direction and the overwrap direction of the inner yarn 12 and the connecting yarn 14 on the inner side (knitted surface side). The yarn is fed and knitted by setting the ratio so that the yarn is over fed with respect to the normal yarn feeding ratio. This makes it possible to expand the needle loop 11a of the ground thread 11 in a pile outward.o

In other words, as described above, the overwrap direction of the outer ground yarn 11 and the overwrap direction of the inner ground yarn 12 and the connecting yarn 14 are changed. By knitting in the reverse direction, the needle loop of the ground thread becomes looser, and it is in a state of being in a one-off or feed state. The needle loop 11a of the ground yarn 11 to be fed will bulge outward. On the other hand, the other ground yarn 12 that does not swell ensures the shape retention of the base fabric and allows knitting. Make it work.

If all of the yarns including ground yarn 11 are over-wrapped in the same direction, the 21 droop is difficult to loosen and the outer ground yarn is turned off. Even if the yarn is fed in the overfeed state, the $ 21 loop portion does not easily swell outward.

As a specific example, ground yarns 11, 12, 15, and 16, which are knitted by passing through guides L 1, L 2, L 5, and L 6, respectively, are synthetic fibers, respectively. Use a multifilament yarn, for example, a polystyrene multifilament yarn of 100 d (denier) and thread it through guide L4. As the connecting yarn 14 to be knitted, a synthetic fiber monofilament yarn, for example, a 200 d polyamide monofilament yarn was used. Then, the ground yarn 11 passed through the guide L1 is supplied in an overfeed state so as to be approximately 1.5 times the normal yarn supply ratio. Organized. As a result, on the outer surface of the front base cloth 60, the portion of the 21 thread loop 11a of the ground yarn 11 bulged in a pile shape as shown in FIG. 50 warp knitted fabrics were obtained.

The double-sided warp knitted fabric 50 is mainly formed by raising the base cloth 60 on the bulging side so that the connecting yarn 14 is not raised. The swollen portion of the yarn 11 will be raised.

The yarn supply ratio of the outer ground yarn that is supplied in the above-mentioned over-fed state can be arbitrarily set according to the degree of the bulging in a pile shape. However, if the ratio is smaller than 1.2 times the normal yarn supply ratio, the swelling state is reduced and the effect of swelling in a pile is not obtained. If it exceeds 2.0 times, the yarn becomes too loose and it becomes difficult to knit. A ratio of 1.2 to 2.0 times the ratio is preferred in practice, especially around 1.5 times.

FIG. 4 shows a knitting structure of another embodiment of the present invention. Even in this knitting structure, the ground yarn 11 due to the guide L1 has an underlap and a stitch over three stitches with respect to the front knitting needle row F. When a wrap, that is, a 3X1 wrap is used to form a needle loop, the ground thread 15 formed by the guide L5 is also connected to the front knitting needle row F. In order to form a needle loop with an underlap and a one-needle overlap between one stitch, that is, a 1X1 lap Thus, the front base fabric is formed. Further, the ground yarn 12 formed by the guide L2 is provided with an underlap and a one-needle wrap, that is, one stitch between the stitches B at the rear. X-1 wrap is used to form a needle-knoll tube, and the ground yarn 16 formed by the guide L6 is connected to the knitting needle array B at the rear by a three-strand fan. By forming a needle loop with a wrap and a one-needle overwrap, that is, a 3X1 wrap, the rear base fabric is formed. Yes.

In addition, the connecting yarns 13 and 14 by the guides L3 and L4 are applied to the base fabrics before and after the base fabric formed by the above knitting, and the connection knitting is performed to each base fabric by the introductory knitting. The two fabrics are connected by fastening them together.

Even in such a knitting structure, the outer ground yarn 11 out of the ground yarns constituting the front base fabric and the rear base fabric are formed in the same manner as in the above embodiment. For the outer ground yarn 16 of the loose yarn, the overwrap direction for forming the loop is changed to the inner ground yarn 1 of the respective base fabric. 5, 12 and connecting thread 14 and 13 The yarn feeding ratio is set to be opposite to the yarn feeding direction, and the yarn feeding ratio is set to, for example, about 1.5 times the normal yarn feeding ratio. By knitting by supplying yarn in an over-fed state, a needle loop of ground yarn 11 is provided on the outer surface of the front base fabric, and the outer loop of the rear base fabric is also provided. In the direction, it is possible to obtain a double-sided warp knitted fabric (not shown) in which needle loops of ground yarn 16 bulge in a pile shape. .

In the knitting structure of this embodiment, since the connecting yarns 13 and 14 are knitted and stopped without forming a loop in the base fabric, the knitting performed thereafter is performed. In the ground-raising shaking process, the connecting yarn is not raised. Therefore, the raised portion of the connecting yarn does not exist on the base fabric, and the outer ground yarn (back side of the knitting) is mainly raised in the base fabric constituting yarn.

A double-sided warp knitted fabric obtained by the above-described embodiment, in which 21 loops of ground yarn are swelled on one or both sides, can be left on one side or both sides. The brushed surface provides a three-dimensional thickness, space or elasticity, and the brushed surface enhances functions such as heat insulation and heat insulation. For example, it can be suitably used widely in, for example, bedding, clothing, civil engineering and construction materials, medical supplies, living materials, and various other fields. In addition, after the above-mentioned double-sided warp knitted fabric is cut by a center, brushing is applied to both sides, so that the sheet material and the sheet are formed by double-sided brushing. It can be widely used as a spacer fabric for fabrics, clothing, etc., or as a double-faced brushed blanket.

In addition, the knitting structure of each guide and the thread It cannot be surmised that various modifications and combinations are possible within the scope of the constitutions shown in the claims. Also, it is of course possible to change the state of the pile swelling by increasing or decreasing the magnification of the overfeed.

Further, in each of the above-described embodiments, the case where the needle loop portion of the outer ground yarn is bulged outward is shown. Conversely, the inner ground yarn is expanded. It is also possible to bulge the needle loop portion of the outer side, in which case the inner ground yarn is over-wrapped and the outer ground yarn is removed. The knitting may be performed with the over-wrapping direction of the connecting yarn and the connecting yarn reversed, and the yarn feed ratio of the inner ground yarn set to the over-feed state. In this case, the yarn feeding ratio of the inner ground yarn can be set to be 2.0 times or more of the normal value.

In addition, when the base fabric comprises three or more types of ground yarns, at least one type of ground yarn is removed from at least one other ground yarn, and the same overlapping direction as described above is applied. By knitting with the yarn supply ratio, the needle loop can be expanded outward.

[Industrial applicability]

As described above, according to the knitting method of the present invention, in a double-sided warp knitted fabric, at least one of the ground yarns constituting one of the base fabrics is used. By knitting the yarn by feeding the yarn to the overfeed, a knitted structure is obtained in which the 21 loop portion of the ground yarn is bulged outward from the base fabric. It is possible to obtain a double-sided warp knitted fabric.

According to this double-sided warp knitted fabric, however, the bulging side of the base fabric is provided. However, even on the back side of the knitted fabric, it is not a problem to apply a brushing process, and it is possible to have a desired raised surface without problems such as splicing of connecting yarn. You can get the status. Therefore, this double-sided warp knitted fabric was widely brushed because it can be widely and suitably used for bedding, clothing, civil engineering construction materials, and other various fields. The production of new spacer fabrics and double-sided brushed fabrics becomes easy.

In particular, in the case of a knitted fabric as a brushed space fabric, only the ground yarn can be raised, so it is used as a connecting yarn. The synthetic properties of the monofilament yarn do not impair the cushioning properties.

Claims

The scope of the claims

When knitting a double-sided warp knitted fabric consisting of two opposing base cloths and a connecting yarn formed by connecting and knitting the base cloths, at least one base cloth is used. At least two types of knitted fabrics are formed by combining the ground yarns, and at least one of the ground yarns is excluded from the base fabric structure except for at least one type of ground yarn. The wrapping direction is opposite to the wrapping direction of the removed ground yarn and the connecting yarn, and the yarn feeding ratio of the other ground yarn is set to the opposite direction. A double-sided warp knitted fabric characterized in that the 21 dollar loop of the ground yarn is expanded outward by knitting in the form of a knit. How to organize

At least one of the ground yarns constituting the base fabric, the knitting structure of the inner ground yarn is 1 × 1 wrap, and the knitting structure of the outer ground yarn is 3 × 1 wrap. The method for knitting a double-sided warp knitted fabric according to claim 1, wherein the knitting is performed.

3. The knitting method according to claim 1, wherein the knitting structure of the connecting yarn is connected and knitted in an insertion form with respect to two base fabrics.

A two-sided warp-knitted fabric consisting of two opposing base cloths and a connecting yarn formed by connecting and knitting the base cloths, and at least one of the base cloths has a small number of base cloths. It is composed of a combination of at least two types of knitting ground yarns, and at least one of the ground yarns except for at least one type of ground yarn has a 21 loop of other ground yarns. A double-sided warp knitted fabric characterized by bulging outward from the base fabric.

The connection yarn according to claim 4, wherein the connection yarn is a synthetic fiber monofilament yarn. The knitting structure of the double-sided warp knitted fabric described above.

3 one