CN107630282B - Method for knitting warp-knitted fabric - Google Patents

Abstract

The invention relates to a knitting method of warp knitting cloth. Provided is a method for knitting a warp knitted fabric capable of knitting a more varied fabric. The method for knitting a warp knitted fabric according to an embodiment is characterized in that a single-side knitting is performed by arranging two integrated jacquard needle beds (PJB) in tandem, and in the single-side knitting, a jacquard mechanism at a selected needle pitch position is made to function at the time of a selected winding, and a jacquard guide (20j) provided in the jacquard needle bed (JB) is displaced, wherein the integrated jacquard needle bed (PJB) is set to a full needle pitch by making two half-needle pitch jacquard needle beds (JB) a pair.

Description

Method for knitting warp-knitted fabric

Technical Field

The invention relates to a knitting method of warp knitting cloth.

Background

A plurality of jacquard guides provided on a jacquard needle bed (ジャカードバー) can be independently displaced in the left and right directions during knitting. Thereby, local changes can be added to the basic tissue. For example, in the knitting of the closed stitch flat tissue (pressed mesh デンビ coated article) shown in fig. 14(1) as the basic tissue, a modified tissue shown in fig. 14(2) - (4) may be formed by displacing a part of the jacquard guide when the needle back lapping yarn (アンダーラップ) is pressed. In the knitting of the closed loop warp plain weave as the basic weave shown in fig. 15(1), the weave shown in fig. 15(2) to (4) can be modified by displacing a part of the jacquard guide when the yarn (オーバーランプ) is laid in front of the needle. In the figure, H indicates a case where the position of the jacquard guide is set to the same position as that in the case of knitting the base fabric (base fabric knitting position), and T indicates a case where the position of the jacquard guide is shifted leftward from the base fabric knitting position.

As a warp knitting method using the above-described technique, a knitting method by a single-needle bed raschel knitting machine described in public technical number 2000-3816 of the japan association of inventions is known. In this method, the jacquard guide can be displaced from the basic stitch knitting position both at the time of front needle laying and at the time of back needle laying. In addition, all the jacquard guides are operated to knit the basic structure, and a part of the jacquard guides are displaced to add a change to the basic structure when either or both of the front and back lapping are performed. In this method, knitting is performed using 1 jacquard needle bed integrated (piezoelectric jacquard reed) and a plurality of bottom reeds (ground ). Here, the integrated jacquard needle beds are a pair of two half-pitch (ハーフゲージ) jacquard needle beds, and the entire jacquard needle beds include needles of the full pitch.

However, in this method, the variation of the fabric that can be woven is limited. For example, in the integrated jacquard needle bed, only a part of the entire structure may be a mesh structure and the other regions may be non-porous structures. In contrast, in the bottom reed, the entire area has 1 structure. Therefore, in order to form a part of the area of the fabric formed by overlapping the fabric knitted with the integrated jacquard needle bed and the fabric knitted with the back reed into a mesh shape, it is necessary to make the entire fabric knitted with the back reed into a mesh fabric, align the positions of the holes of the mesh fabric knitted with the integrated jacquard needle bed, or make the entire fabric knitted with the back reed into a chain-shaped knitting fabric. In this case, however, the structure of the non-mesh region of the fabric in which the structure knitted with the integrated jacquard needle bed overlaps the structure knitted with the bottom reed is limited, and the visual appearance of the region is limited. Further, if the structure knitted by the bottom reed is a chain knitting structure, even if it is intended to form a stretchable fabric by passing a rubber thread through the bottom reed, the fabric can have stretchability only in the course (コース) direction.

Disclosure of Invention

Accordingly, an object of the present invention is to provide a warp knitted fabric knitting method capable of knitting a fabric with less limitation and more variety as described above.

The method for knitting a warp knitted fabric according to the embodiment is characterized in that a single-side knitting is performed by arranging two integrated jacquard needle beds in front of each other (シングル, み), and in the single-side knitting, a jacquard mechanism at a selected needle pitch position is made to function at a selected winding, and a jacquard guide provided in the jacquard needle beds is displaced, wherein the integrated jacquard needle beds are paired by two jacquard needle beds at a half needle pitch to achieve a full needle pitch.

According to the knitting method of the warp knitted fabric of the present embodiment having the above feature, a fabric having many variations can be knitted.

Drawings

Fig. 1 is a front view of the warp knitting machine 1.

Fig. 2 is a diagram showing an arrangement of integrated jacquard needle beds PJB1, PJB 2.

Fig. 3 is a front view of the jacquard guide 20 j.

Fig. 4 is a diagram showing an arrangement of guide bars according to arrangement example a.

Fig. 5 is a diagram showing an arrangement of guide bars according to arrangement example B.

Fig. 6 is a view showing a closed loop warp knit and a structure in which a jacquard mechanism is caused to act on the closed loop warp knit to change the closed loop warp knit in the present embodiment.

Fig. 7 is a view showing an open loop warp knit and a structure in which the open loop warp knit is changed by applying a jacquard mechanism to the open loop warp knit in the present embodiment.

Fig. 8 is a view showing an open chain stitch and a stitch in which a jacquard mechanism is caused to act on the open chain stitch to change the open chain stitch in the present embodiment.

Fig. 9 is a view showing an insertion structure of a double needle back inlay yarn and a structure in which a jacquard mechanism is caused to act on the insertion structure to change the insertion structure in the present embodiment.

Fig. 10 is a view showing an insertion structure of a single-needle back inlay yarn and a structure in which a jacquard mechanism is caused to act on the insertion structure to change the insertion structure in the present embodiment.

Fig. 11 is a view showing a closed loop reverse warp flat stitch and a stitch in which the closed loop reverse warp flat stitch is changed by applying a jacquard mechanism to the closed loop reverse warp flat stitch in the present embodiment.

Fig. 12 is a diagram showing a reverse wound structure (カウンターラッピング) and a structure in which the reverse wound structure is changed by applying a jacquard mechanism to the reverse wound structure in the present embodiment.

Fig. 13 is a view showing a reverse wound structure and a structure in which a jacquard mechanism is caused to act on the reverse wound structure to change the reverse wound structure in the present embodiment.

Fig. 14 is a view showing a closed loop warp flat stitch and a stitch in a case where a jacquard guide is displaced at the time of needle back laying.

Fig. 15 is a view showing a closed loop warp flat stitch and a stitch in a case where a jacquard guide is displaced when a yarn is laid in front of a needle.

Detailed Description

Embodiments are described based on the drawings. The following embodiments are illustrative, and the scope of the invention is not limited thereto. Various omissions, substitutions, and changes may be made in the following embodiments without departing from the spirit of the invention.

In the following description, the expression front and rear is used with the swing-in direction set to rear and the swing-out direction set to front. The left and right are expressions when the knitted part is viewed from the front.

(1) Structure of warp knitting machine

A warp knitting machine used for implementing the method for knitting a warp knitted fabric according to the present embodiment will be described.

The warp knitting machine 1 of fig. 1 is a single needle bed raschel knitting machine which performs knitting by needles (needles) 22 arranged in 1 row in the left-right direction. As shown in fig. 1, the warp knitting machine 1 includes a knitting portion 2 for knitting, a yarn feeding portion 3 for feeding a yarn to the knitting portion 2, a pattern forming portion 4 for operating a guide (reed) 20 of the knitting portion 2, a driving portion 5 for operating a needle 22 of the knitting portion 2, a winding portion 6 for winding a fabric knitted by the knitting portion 2, and a tension device 7 provided between the knitting portion 2 and the yarn feeding portion 3 for uniformly maintaining a tension of the yarn in the knitting portion 2.

The knitting portion 2 includes a plurality of needles 22 arranged in 1 row. The needles 22 are moved up and down together by the driving portion 5. The knitting portion 2 is provided with a guide bar 21. Only one guide rod 21 is depicted in fig. 1 for simplicity, but actually a plurality is provided. A plurality of guides 20 are provided in a row on 1 guide bar 21. The guide bar 21 is moved left and right by the pattern forming portion 4. The knitting section 2 further includes a groove plate 23 provided in front of the needles 22, and a comb (ステッチコーム) for pressing the fabric toward the groove plate 23 when the needles 22 are raised.

The yarn feeding portion 3 may have any configuration as long as it can feed the yarn to the knitting portion 2, and the detailed structure thereof is not limited. An example of the wire feeding unit 3 includes a beam 30 for winding a wire and a device for feeding the wire from the beam 30. Examples of such devices include a so-called passive weight-type feeding device in which the beam 30 is rotated in the feeding line direction and a weight hung on one end of the beam 30 applies a brake in the direction opposite to the rotation direction to adjust the rotation speed of the beam 30, and a computer device in which the rotation speed of the beam 30 is controlled by a computer.

The pattern forming portion 4 is preferably electronically controlled. Specifically, the pattern forming section 4 includes: a rod 40 extending in the left-right direction and connected to one end of the guide rod 21; a moving device 41 such as a linear motor or a ball screw for moving the rod 40 left and right; an electronic control unit 42 for controlling the moving unit 41. When an operation instruction is input to the electronic control unit 42, the moving unit 41 is operated in accordance with the operation instruction, and the lever 40 and the guide lever 21 are moved leftward and rightward.

However, the structure of the pattern forming portion 4 is not limited to this. For example, the pattern forming portion 4 may include a rotatable chain drum, and a 1-turn link may be provided on the outer periphery of the chain drum. In this case, the lever 40 is pushed in accordance with a change in the chain number (height to the outside in the chain drum radial direction) of the link, and moves left and right.

The driving unit 5 may be configured to move the needle 22 up and down, and the detailed structure thereof is not limited. The ordinary driving unit 5 includes a rotatable shaft 50, a rotating device 51 such as a motor for rotating the shaft 50, and a cam 52 fixed to the shaft 50. When the cam 52 rotates with the rotation of the shaft 50, the needle 22 located above the cam 52 is pressed by the cam 52 and moves up and down.

(2) Guide and guide bar arrangement for warp knitting machine 1

As shown in fig. 2, in the knitting portion 2 of the warp knitting machine 1 of the present embodiment, a front one-piece jacquard needle bed PJB1 and a rear one-piece jacquard needle bed PJB2 are provided in this order from the front. Here, the integrated jacquard needle bed is a structure including two half-pitch jacquard needle beds (jacquard needle beds including half-set jacquard guides 20j) JB and having a full-pitch jacquard needle bed (jacquard guides 20j including full-set jacquard guides) as a whole.

The half-gauge jacquard needle beds JB perform the knitting motions of the basic structure. The plurality of jacquard guides 20j provided on the jacquard needle bed JB of the half needle pitch described above all perform the same movement as the jacquard needle bed JB moves.

Further, the jacquard guides 20j described above can be independently displaced by the jacquard mechanism, respectively. Therefore, the plurality of jacquard guides 20j can move differently for each stitch position.

The jacquard mechanism is a mechanism for displacing the jacquard guide 20j further than the position for knitting the basic structure. An example of this mechanism is explained based on fig. 3. In the jacquard guide 20j shown in fig. 3, a front end portion 11 formed with a hole 10 through which a thread passes is provided at a front end of an insulator 12. Piezoelectric elements 13 made of ceramic or the like are provided on both right and left sides of the insulator 12. When a voltage is applied to one of the piezoelectric elements 13, the piezoelectric element 13 is deformed, and the insulator 12 is bent. As a result, the tip end portion 11 moves left and right, and the position of the hole 10 moves left and right. Thus the jacquard guide 20j is curved. The amount of movement of the hole 10 in the left-right direction is set as the amount of bending or displacement of the jacquard guide 20 j. In a state where no voltage is applied to the piezoelectric element 13, the jacquard guide 20j is not bent.

In a state where the jacquard guide 20j is not bent and knitting is stopped, the jacquard guide 20j is located directly above the needles 22. In the knitting of the basic stitch, the jacquard guide 20j is bent rightward by a distance of half of 1G (the distance from the needle 22 to the adjacent needle 22). The state in knitting of the basic structure is set to a state in which the jacquard mechanism does not function. When the jacquard mechanism is activated, the jacquard guide 20j is bent leftward, and is displaced leftward by a distance of 1G from the position in the knitting of the basic structure. The jacquard mechanism may be operated only in the front lapping, only in the back lapping, or both.

In addition to the front jacquard needle bed PJB1 and the rear jacquard needle bed PJB2, a common guide bar may be provided in the knitting portion. The general guide bar is a structure in which all of a plurality of guides provided on the guide bar move in the same manner as the guide bar moves, and the guides are not independently displaced in the left and right directions. For example, a common guide bar may be provided at a position rearward of the rear integrated jacquard needle bed PJB2, a common guide bar may be provided at a position forward of the front integrated jacquard needle bed PJB1, or guide bars may be provided at both a position forward of the front integrated jacquard needle bed PJB1 and a position rearward of the rear integrated jacquard needle bed PJB 2.

Fig. 4 shows an example of an arrangement in which a normal guide bar is provided at a position behind the rear integrated jacquard needle bed PJB2 as an arrangement example a. In the arrangement example a, the front one-piece jacquard needle bed PJB1, the rear one-piece jacquard needle bed PJB2, the guide bar GB5 as a normal guide bar, and the guide bar GB6 as a normal guide bar are arranged in this order from the front. Here, the front integrated jacquard needle bed PJB1 includes a jacquard needle bed JB1 and a jacquard needle bed JB2, and the rear integrated jacquard needle bed PJB2 includes a jacquard needle bed JB3 and a jacquard needle bed JB 4. Each of the jacquard needle beds JB1 to JB4 includes a half-set jacquard guide 20 j. The jacquard needle beds JB1 and JB2 include the jacquard guide 20j of the entire set, and the jacquard needle beds JB3 and JB4 include the jacquard guide 20j of the entire set.

Fig. 5 shows an example of an arrangement in which a normal guide bar 21 is provided at both a position forward of the front one-piece jacquard needle bed PJB1 and a position rearward of the rear one-piece jacquard needle bed PJB2 as an arrangement example B. In the arrangement example B, a guide bar GB1 as a normal guide bar, a front integrated jacquard needle bed PJB1, a rear integrated jacquard needle bed PJB2, and a guide bar GB6 as a normal guide bar are arranged in this order from the front. The front integrated jacquard needle bed PJB1 includes a jacquard needle bed JB2 and a jacquard needle bed JB3, and the rear integrated jacquard needle bed PJB2 includes a jacquard needle bed JB4 and a jacquard needle bed JB 5. Each of the jacquard needle beds JB2 to JB5 includes a half-set jacquard guide 20 j. The jacquard needle beds JB2 and JB3 include the jacquard guide 20j of the entire set, and the jacquard needle beds JB4 and JB5 include the jacquard guide 20j of the entire set.

In the above embodiment, the yarn presser plate (fall plate) is not provided in the middle of the arrangement of the guide bars.

(3) Knitting method

When knitting is performed using the above-described 2 integrated jacquard needle beds arranged in tandem, the jacquard guide can be displaced by operating the jacquard mechanism of the jacquard guide at the selected pitch position. Here, although the yarn threading of the jacquard guide at each stitch pitch position is performed by the yarn laying yarn before the needle and the yarn laying yarn after the needle, the jacquard mechanism can be made to function when selecting which of the yarn threading is performed. The jacquard mechanism can also be made to function when both sides are wound. In this way, the stitch position and the winding are selected to operate the jacquard mechanism, and the jacquard guide at the stitch position can be displaced during the winding. As a result, the basic structure knitted by the 2 integrated jacquard needle beds can be changed.

(3-1) example of the change in texture caused by the action of the Jacquard mechanism

First, the change in the weave of the jacquard guide due to the action of the jacquard mechanism is exemplified. In the following example, a case is shown in which a jacquard mechanism is applied to a structure that repeats at an interval between two knitting courses to change the structure, and a structure that repeats at an interval between two knitting courses is similarly formed. However, the change may be applied to the structure repeated at the stitch row interval of three or more stitches, or the change may be applied to the structure repeated at the stitch row interval of two or more stitches to form the structure repeated at the stitch row interval of three or more stitches.

Fig. 6 shows a variation of the spacing between two courses of the weave knitted by the jacquard guide. In the figure, H represents a case where the jacquard mechanism is not operated. In this case, the jacquard guide is in the same position as when the basic weave is knitted. T in the figure indicates a case where the jacquard mechanism is caused to function. In this case, the jacquard guide is displaced to the left from the position where the basic weave is knitted. Although T and H are described in the upper and lower stages of 1 needle, T or H in the upper stage indicates a case where the jacquard mechanism is made to function or not function when the yarn is laid in front of the needle, and T or H in the lower stage indicates a case where the jacquard mechanism is made to function or not function when the yarn is laid in back of the needle. FIG. 6(1) shows a closed loop warp knit comprising 1-0/1-2// repeating units as a basic structure, and the closed loop warp knit can be subjected to 15 changes (2) to (16) by applying a jacquard mechanism to the closed loop warp knit. For example, the structure of fig. 6(2) is a structure in which the jacquard mechanism is not operated at the time of back lapping and the time of front lapping of the first course, and the jacquard mechanism is operated at the time of back lapping and the time of front lapping of the second course.

Fig. 7 to 11 show other modifications of the weave knitted by the jacquard guide. The basic structure of FIG. 7 is an open loop warp-flattened structure shown in (1), and is composed of 0 to 1/2-1// repeating units. The basic structure of FIG. 8 is an open chain knitted structure shown in (1), and is composed of repeating units of 0 to 1/1 to 0// inclusive. The basic structure of FIG. 9 is the insertion structure of the double needle back lay yarn shown in (1), and is constituted by the repeating unit of 0 to 0/2-2// in the structure. The basic structure of FIG. 10 is the insertion structure of the single-needle back lay yarn shown in (1), and is constituted by the repeating units of 0 to 0/1-1// for each needle. The basic structure of fig. 11 is a closed loop reverse warp knit shown in (1) (a structure in which the needle back lapping yarn is in the opposite direction to the closed loop warp knit of fig. 6 (1)), and is composed of repeat units of 1 to 2/1-0// for each needle back lapping yarn. The basic structures in fig. 7 to 11 can be changed by 15 kinds in the same manner as in the case shown in fig. 6. However, (2) to (5) in fig. 7 to 11 show only representative 4 variations.

(3-2) example of knitting with one integrated Jacquard needle bed

The integrated jacquard needle bed includes two jacquard needle beds of half a needle pitch, which can perform the same operation and knit the same structure. Thus, the structure illustrated in fig. 6 to 11 can be knitted by the integrated jacquard needle bed.

Further, since the integrated jacquard needle bed includes two jacquard needle beds of half the pitch, for example, any one of the structures in fig. 6 to 11 can be knitted by one jacquard needle bed of half the pitch, any one of the structures different from that in fig. 6 to 11 can be knitted by another jacquard needle bed of half the pitch, and the two structures can be overlapped to form a knitted structure by one integrated jacquard needle bed.

For example, the structure of fig. 12 is an example of a structure knitted with one integrated jacquard needle bed. (1) The basic structure shown is a reverse-wound structure in which the closed loop warp-flat structure shown in fig. 6(1) is knitted with one half-pitch jacquard needle bed, the closed loop reverse warp-flat structure shown in fig. 11(1) is knitted with the other half-pitch jacquard needle bed, and these two structures are overlapped. The changes (2) to (5) can be made by causing the jacquard mechanism to act on the basic structure.

FIGS. 13(1) to (4) show structures in a wider range. FIG. 13(1) is a view showing a reverse wound structure as a basic structure in FIG. 12(1) in a broad range. The structures of fig. 13(2) to (4) are examples in which the structure of fig. 13(1) is changed by operating the jacquard mechanism, and a displacement in the direction of the arrow is added to a part of the basic structure indicated by the broken line in the drawing. The tissue of fig. 13(2) is a raschel net tissue. The weave in fig. 13(3) is a thick weave where a 2-gauge needle back lay yarn is performed, and a pattern can be drawn on the fabric by combining the thick weave with a thin, e.g., warp flat weave. The tissue in fig. 13(4) shows a large wringing effect. In this way, various textures can be formed by causing the jacquard mechanism to act on the basic texture of fig. 13 (1). Since the tissues exemplified in fig. 13(2) to (4) form loops at all needle positions, the tissues overlapped with the loops do not need to form loops at all needle positions, and various tissues can be formed.

(3-3) example of knitting with two Integrated Jacquard needle beds

Since the warp knitting machine 1 of the present embodiment includes two integrated jacquard needle beds, for example, one integrated jacquard needle bed can be used to knit any one of the structures in fig. 6 to 13, and the other integrated jacquard needle bed can also be used to knit any one of the structures in fig. 6 to 13, and the two structures can be overlapped. Hereinafter, a structure knitted by two integrated jacquard needle beds arranged in front and back is exemplified.

First, as a basic structure, a structure in which the two front and rear integrated jacquard needle beds respectively knit a closed stitch warp flat structure shown in fig. 6(1) is exemplified. In the knitting of the basic structure, various structures can be knitted by operating the jacquard mechanism. For example, a warp flat structure is knitted with the front one-piece jacquard needle bed, and a locally thick or thin structure is knitted with the rear one-piece jacquard needle bed by operating the jacquard mechanism. Thus, a thin portion or a thick portion is formed in the fabric in which these weaves are overlapped, and a pattern can be formed due to a difference in thickness.

Next, as basic structures, the front jacquard needle bed integrated with the closed loop warp flat structure shown in fig. 6(1) and the rear jacquard needle bed integrated with the closed loop reverse warp flat structure shown in fig. 11(1) are knitted, for example. In this structure, since the sinker loop formed by the front one-piece jacquard needle bed intersects with the sinker loop formed by the rear one-piece jacquard needle bed, the fabric exhibits a wringing effect. By operating the jacquard mechanism in the knitting of the basic structure, various structures can be knitted in the same manner as described above. The fabric of the weave has a wringing effect.

Next, as basic structures, the front-side integrated jacquard needle bed and the rear-side integrated jacquard needle bed are knitted with the structures of the reverse stitches shown in fig. 12(1) and 13(1), respectively. By operating the jacquard mechanism in the knitting of the reverse-wound structure, various structures can be knitted. For example, a part (part a) of the structure knitted with the integrated jacquard needle bed is a raschel net structure as shown in fig. 13 (2). Then, a structure having a raschel net structure in a part thereof is knitted by two integrated jacquard needle beds, and these raschel net structures are overlapped with each other with the positions of the holes being aligned. Thus, a web-like woven fabric can be formed in a region where raschel network structures overlap with each other. In this case, the structure of the portion other than the portion a (as the portion B) of the structure knitted with one integrated jacquard needle bed is not limited. For example, one of the two overlapping B portions may be a mesh structure, and the other may be a structure other than the mesh structure. In addition, both the B portions may be made of a structure other than the mesh structure. Therefore, the region of the fabric other than a part of the mesh-like region can be made into various textures, thereby enabling various visual expressions.

Next, as basic structures, the front-side integrated jacquard needle bed is knitted with a closed stitch of the flat structure shown in fig. 6(1) and the rear-side integrated jacquard needle bed is knitted with a structure of the reverse-wound structure shown in fig. 12(1) and fig. 13 (1). In the back-side integrated jacquard needle bed, a jacquard mechanism is caused to act on the basic structure, whereby a raschel net structure shown in fig. 13(2), for example, can be knitted. In the integrated jacquard needle bed on the front side, for example, a pattern having a thick portion and a thin portion can be knitted by causing the jacquard mechanism to act on the basic structure. Further, by integrating the above-described structures, a fabric having a clear pattern of the structure knitted by the integrated jacquard needle bed on the front side can be formed.

Next, as basic structures, the front-side integrated jacquard needle bed is knitted with the reverse-wound structure shown in fig. 12(1) and 13(1), and the rear-side integrated jacquard needle bed is knitted with the closed-end-loop reverse-warp-flat structure shown in fig. 11 (1). In the front-side integrated jacquard needle bed, a jacquard mechanism is caused to act on the basic structure, whereby a raschel net structure shown in fig. 13(2), for example, can be knitted. In the back-side integrated jacquard needle bed, for example, a pattern having a thick portion and a thin portion can be knitted by causing the jacquard mechanism to act on the basic structure. Further, by integrating the above-described structures, a fabric in which the pattern of the structure knitted by the integrated jacquard needle bed on the rear side is visible can be formed. The design appears to be relatively thin.

Not only can the fabric change be increased by the knitting method as described above, but also the fabric change can be increased by making the kinds of threads passing through the two integrated jacquard needle beds (hence 4 jacquard guides) different. The difference in the type of the yarn means that the yarn is different in raw material, shape, thickness, number of twists, finish, and the like. The different types of threads differ in elasticity, stretchability, flexibility, presence or absence of gloss, hand feeling, degree of dyeing, and the like.

For example, the knitting is performed by passing the 4 jacquard guides through threads having different degrees of dyeing at a predetermined temperature, such as at least polyamide threads and polyester threads. When dyeing is performed at a predetermined temperature, a pattern composed of light and dark colors can be drawn on the fabric due to the difference in the degree of dyeing of the thread.

In addition, when 1 or 2 or more of the 4 jacquard guides are knitted by passing elastic threads having a large elasticity, it is possible to form a woven fabric that contracts after knitting according to the knitting method. For example, when a jacquard guide for chain knitting is knitted through an elastic thread, a fabric that contracts in the course direction can be formed.

In addition, patterns formed of different colors can be drawn on the fabric by making the color of the thread passing through the two integrated jacquard needle beds at least two or more. For example, when a warp flat structure is knitted through a yellow yarn on the rear integrated jacquard needle bed and a meshed net structure is knitted through a red yarn on the front integrated jacquard needle bed, the two structures are overlapped with each other, so that a yellow fabric can be seen below the red color. For example, if the closed-end loop warp plain structure is knitted with a yellow yarn on the rear-side integrated jacquard needle bed and a red yarn on the front-side integrated jacquard needle bed, and these two structures are overlapped with each other, it is possible to knit a fabric whose front surface is red and back surface is yellow in color in the sinker loop portion. Here, since the rear integrated jacquard needle bed and the front integrated jacquard needle bed are each provided with the entire set of jacquard guides, the color separation becomes clear as compared with a case where the two half-pitch jacquard needle beds are knitted with red and yellow yarns respectively on one integrated jacquard needle bed. In addition, if knitting is performed by passing different color yarns through the 4 jacquard needle beds, a fabric having 4 colors can be formed.

In the case where a common guide bar is provided in addition to the front-side integrated jacquard needle bed and the rear-side integrated jacquard needle bed, the change of the fabric is further increased.

In the case of the above-described arrangement example a, an insert thread is inserted through the guide bar GB5 and the guide bar GB6, for example, and a pattern can be drawn or a trim can be formed on the fabric by the insert thread. An example of forming the trim by inserting the wire is described below. 2 pieces of clothing were knitted in parallel by the integrated jacquard needle beds PJB1 and PJB 2. In this case, in any of the guide bars, a ravel formed by chain knitting is provided between adjacent cloths. Further, the rubber thread is inserted so as to be hung on the ravel and one cloth and the rubber thread is inserted so as to be hung on the other cloth by the guide rod GB5 or the guide rod GB 6. That is, 2 pieces of clothes adjacent to each other are connected by 1 piece of stitches and 2 pieces of rubber threads on both sides thereof. Here, as the rubber thread, a highly stretchable thread formed of, for example, urethane is used. After finishing knitting 2 pieces of cloth in parallel, the stitches are removed. Then, the 2 rubber threads are released from the stitches removed and contracted, and integrated with the end portions of the cloth on the respective hanging sides. Thus, the cloth is separated from the cloth in a state of having a clean edge.

In the case of the above-described arrangement example B, for example, the insert yarn may be inserted into the front-side integrated jacquard needle bed PJB 1. This is because, since the guide bar GB1 is located at a position forward of the front integrated jacquard needle bed PJB1, when a stitch is formed by chain knitting or the like using the guide bar GB1, the inserted thread can be pressed.

The woven fabric is then subjected to heat setting, washing, drying, and other processing as necessary, thereby completing a finished product such as a clothing.

(4) Effect

According to the method of knitting a warp knitted fabric of the present embodiment, a fabric which is changed many times can be knitted by using an integrated jacquard needle bed in which jacquard needle beds of half needle pitch are paired to form a full needle pitch, knitting using two such integrated jacquard needle beds, and selecting a jacquard mechanism to function/not function when a front lapping yarn and a back lapping yarn are used.

For example, in one integrated jacquard needle bed, the jacquard needle beds of half gauge are paired, and the jacquard mechanism can be selected to function/not function when the front lapping and the back lapping are performed, so that various changes can be added to a part of the structure knitted by one integrated jacquard needle bed. Further, since the knitting is performed using two such integrated jacquard needle beds, only a part of the patterns to which the change by the jacquard mechanism is added can be overlapped by 2.

Further, if the guide bar is provided at a position behind the rear integrated jacquard needle bed or at a position in front of the front integrated jacquard needle bed and the knitting is performed using the guide bar, a more varied fabric can be knitted as exemplified above.

Further, if the type of the thread passing through the two integrated jacquard needle beds is at least two or more, or the color of the thread passing through the two integrated jacquard needle beds is at least two or more, it is possible to knit a fabric which is more variable as exemplified above.

Claims (6)

1. A method for knitting a warp knitted fabric, wherein,

in the single-side knitting, a jacquard mechanism at a selected stitch position is made to function at a selected winding to displace a jacquard guide provided to a jacquard needle bed by a single-needle-bed Raschel warp knitting machine having two integrated jacquard needle beds arranged in tandem and having needles arranged in a row, wherein the integrated jacquard needle beds are formed to have a full stitch by a pair of two jacquard needle beds having a half stitch,

as a basic structure before the jacquard mechanism is operated in the single-side knitting, a closed stitch warp flat structure is knitted with the front one-piece jacquard needle bed, and a reverse-wound structure is knitted with the rear one-piece jacquard needle bed, or a reverse-wound structure is knitted with the front one-piece jacquard needle bed and a closed stitch reverse warp flat structure is knitted with the rear one-piece jacquard needle bed.

2. The knitting method of a warp knit fabric according to claim 1,

knitting is also performed using a guide bar provided at a position behind the back-side integrated jacquard needle bed.

3. The knitting method of a warp knit fabric according to claim 1,

knitting is also performed using a guide bar provided at a position before the front integrated jacquard needle bed.

4. The knitting method of a warp knit fabric according to claim 2,

knitting is also performed using a guide bar provided at a position before the front integrated jacquard needle bed.

5. The method of knitting a warp knitted fabric according to any one of claims 1 to 4,

the kind of the thread passing through the two integrated jacquard needle beds is more than two.

6. The method of knitting a warp knitted fabric according to any one of claims 1 to 4,

the color of the thread passing through the two integrated jacquard needle beds is more than two.

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