Warp knitting method and warp knitting machine

Abstract

A double-needle bed Raschel warp knitting machine includes a pair of front jacquard guide bars (JB2, 3) and a pair of rear jacquard guide bars (JB4, 5) as jacquard guide bars. The front jacquard guide bars (JB2, 3) and the rear jacquard guide bars (JB4, 5) are half-pitch jacquard guide bars. As ground guide bars, it includes at least one front ground guide bar (GB1) located in front of the front jacquard guide bars (JB2, 3) and at least one rear ground guide bar (GB6, 7, 8) located in rear of the rear jacquard guide bars (JB4, 5). The double-needle bed Raschel warp knitting machine is characterized in that the four half-pitch jacquard guide bars are equipped with jacquard yarn guides at the same position in the width direction of the knitting machine.

Description

Technical Field

[0001] This invention relates to a method for weaving warp-knitted fabrics and a warp-knitting machine. Background Technology

[0002] As a double-needle bed Raschel warp knitting machine, it is known to have a configuration such as that described in Patent Document 1, which includes a pair of front jacquard guide bars and a pair of rear jacquard guide bars. The front jacquard guide bars and the rear jacquard guide bars are jacquard guide bars with a half gauge (hereinafter referred to as "half gauge jacquard guide bars").

[0003] In the previously well-known double-needle-bed Raschel warp knitting machine, such as Figure 11 As shown, each half-gauge jacquard comb JB-F1, JB-F2, JB-B1, and JB-B2 has half the number of jacquard yarn guides (Japanese: ジャカードガイド) (one vertical line in the diagram corresponds to one jacquard yarn guide).

[0004] If we focus on the front jacquard guide bars JB-F1 and JB-F2, the positions of the jacquard yarn guides (in the width direction of the knitting machine) differ between one half-gauge jacquard guide bar JB-F1 and the other half-gauge jacquard guide bar JB-F2. Specifically, the jacquard yarn guides of these two half-gauge jacquard guide bars JB-F1 and JB-F2 are arranged alternately.

[0005] On the rear jacquard combs JB-B1 and JB-B2, similar to the front side, there are two half-gauge jacquard combs JB-B1 and JB-B2 jacquard yarn guides alternately arranged.

[0006] Prior art literature

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Application Publication No. 2016-148124 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] However, in the aforementioned well-known double-needle bed Raschel warp knitting machine, research is underway to supply different colored yarns to the four half-gauge jacquard guide bars. Furthermore, a method is being researched whereby, at each position within the warp-knitted fabric, a loop is formed only on any one half-gauge jacquard guide bar, and that position is designated as the color of the yarn from that half-gauge jacquard guide bar.

[0011] However, as described above, since the positions of the jacquard guide bars (positions in the width direction of the knitting machine) are different for each half - pitch jacquard guide bar, in this method, for each color of the yarn, the position (wale) where the yarn appears on the surface of the warp knitted fabric is different. As a result, an offset occurs between the areas of one color and the areas of another color. Such an offset affects the appearance of the warp knitted fabric.

[0012] The present invention is made in view of such actual situations, and its object is to provide a knitting method for a warp knitted fabric with a beautiful surface, and also to provide a warp knitting machine capable of implementing this knitting method.

[0013] Solution to the problem

[0014] The double - needle - bed Raschel warp knitting machine of the embodiment has the following constitution [1].

[0015] [1] The double - needle - bed Raschel warp knitting machine of the embodiment includes a front - side needle row and a rear - side needle row as rows of a plurality of knitting needles, and a pair of front - side jacquard guide bars and a pair of rear - side jacquard guide bars as jacquard guide bars arranged with a plurality of them. The above - mentioned front - side jacquard guide bars and the above - mentioned rear - side jacquard guide bars are each half - pitch jacquard guide bars. As a ground guide bar (Japanese: 地ガイドバー) arranged with a plurality of guide bars, it includes at least one front - side ground guide bar provided at a position in front of the above - mentioned front - side jacquard guide bar and at least one rear - side ground guide bar provided at a position behind the above - mentioned rear - side jacquard guide bar. It is characterized in that the 4 above - mentioned half - pitch jacquard guide bars have jacquard guide bars at the same position in the width direction of the knitting machine.

[0016] In addition, the knitting method of the double - needle - bed Raschel warp knitted fabric of the embodiment has the following constitution [2] to [7].

[0017] [2] The knitting method of the double - needle - bed Raschel warp knitted fabric of the embodiment uses the double - needle - bed Raschel warp knitting machine of [1], weaves a front - side base fabric using the above - mentioned front - side ground guide bar, weaves a rear - side base fabric using the above - mentioned rear - side ground guide bar, selects one of the 4 above - mentioned half - pitch jacquard guide bars at a specified position, and uses the selected half - pitch jacquard guide bar to knit a knitted structure in which the yarn straddles two or more wales of the rear - side base fabric and forms loops on the rear - side base fabric. At the same specified position, respectively use the 3 unselected above - mentioned half - pitch jacquard guide bars to knit a knitted structure in which the yarn is inserted into the above - mentioned front - side base fabric.

[0018] [3] The knitting method of the double - needle - bed Raschel warp knitted fabric as described in [2] is characterized in that there are at least 4 of the above - mentioned specified positions, and different above - mentioned half - pitch jacquard guide bars are selected at each of the above - mentioned specified positions.

[0019] [4] The knitting method of double needle bed Raschel warp knitting fabric as described in [2] or [3] is characterized in that a knitting structure is knitted by using the selected half-pitch jacquard comb to form loops of yarn on the front and back base fabrics.

[0020] [5] The knitting method of double needle bed Raschel warp knitting fabric as described in [2] or [3] is characterized in that, using the selected half-pitch jacquard comb, a knitting structure is formed such that the yarn forms loops only in the back bottom fabric and the portion of the yarn between the loops is inserted into the front bottom fabric.

[0021] [6] The knitting method of double needle bed Raschel warp knitting fabric as described in any one of [2] to [5] is characterized in that a knitting structure is knitted by using the half-pitch jacquard comb selected above, which makes the yarn overlap 2 stitches on the back side base fabric.

[0022] [7] The knitting method of double needle bed Raschel warp knitting fabric as described in any one of [2] to [6] is characterized in that a plurality of the rear side guide bars are provided in the double needle bed Raschel warp knitting machine, and loops are formed on the front side base fabric by using the rear side guide bar closest to the rear side jacquard guide bar.

[0023] Invention Effects

[0024] Based on the warp knitting machine and knitting method described above, warp-knitted fabrics with beautiful surfaces can be woven. Attached Figure Description

[0025] Figure 1 This is a diagram showing the arrangement of the guide bars in a double-needle bed Raschel warp knitting machine when viewed from the side.

[0026] Figure 2 This is a diagram showing the configuration of the knitting needles and yarn guides when viewed from above on a warp knitting machine.

[0027] Figure 3 This is a tissue diagram obtained from ground comb and jacquard comb.

[0028] Figure 4 It is a weave pattern obtained by the jacquard comb when forming loops of arbitrary jacquard yarns on the back base fabric.

[0029] Figure 5 It is a weave diagram obtained by the jacquard comb when all the jacquard yarns are inserted into the front base fabric.

[0030] Figure 6 It is a plan view of the back bottom fabric of a warp-knitted fabric.

[0031] Figure 7This is a modified example of the weave pattern obtained by the jacquard comb when forming loops of arbitrary jacquard yarns on the back bottom fabric.

[0032] Figure 8 This is a modified example of the weave pattern obtained by the jacquard comb when forming loops of arbitrary jacquard yarns on the back bottom fabric.

[0033] Figure 9 This is a modified example of the tissue diagram in GB6 for combing.

[0034] Figure 10 This is a modified example of the tissue diagram of GB8 comb.

[0035] Figure 11 This diagram shows the configuration of the needles and yarn guides when viewed from above on a conventionally known double-needle-bed Raschel warp knitting machine. Detailed Implementation

[0036] This embodiment will be described with reference to the accompanying drawings. Furthermore, this embodiment is merely an example, and any appropriate modifications made without departing from the scope of the inventive concept are included within the scope of this invention.

[0037] The warp knitting machine of this embodiment has Figure 1 The structure shown. (And) Figure 1 The direction perpendicular to the paper surface is the width direction of the warp knitting machine (hereinafter referred to as the "knitting machine width direction"). Additionally, Figure 1 The left and right directions refer to the front and back directions of the warp knitting machine (hereinafter referred to as "the front and back directions of the knitting machine"). In Figure 1 In the middle, left is the front (front side), and right is the back (rear side).

[0038] like Figure 1 As shown, the warp knitting machine of this embodiment is a double-needle-bed Raschel warp knitting machine equipped with a front needle row (FN) and a rear needle row (BN). Both the front needle row (FN) and the rear needle row (BN) arrange multiple needles in a row along the width of the knitting machine. The front needle row (FN) is the row of needles used for knitting the front base fabric, and the rear needle row (BN) is the row of needles used for knitting the rear base fabric.

[0039] Furthermore, the double-needle-bed Raschel warp knitting machine of this embodiment is a so-called double jacquard double-needle-bed Raschel warp knitting machine having a pair of jacquard guide bars JB2 and JB3 on the front side (hereinafter referred to as "front jacquard guide bars JB2 and JB3") and a pair of jacquard guide bars JB4 and JB5 on the rear side (hereinafter referred to as "rear jacquard guide bars JB4 and JB5"). For each of the jacquard guide bars JB2, JB3, JB4, and JB5, multiple jacquard yarn guides are arranged in the width direction of the knitting machine.

[0040] Jacquard guide bars JB2, JB3, JB4, and JB5 perform basic movements for weaving the basic structure. Subsequently, multiple jacquard yarn guides located on jacquard guide bars JB2, JB3, JB4, and JB5 perform basic movements for weaving the basic structure.

[0041] In addition to the basic movements used for weaving the basic structure, these jacquard yarn guides can also be independently displaced by the action of the jacquard mechanism. Therefore, multiple jacquard yarn guides can perform different movements. When the jacquard mechanism is activated, the jacquard yarn guides are displaced by a distance of 1G (the interval between two adjacent needles) in the width direction of the knitting machine relative to their position in the basic structure. The jacquard mechanism can operate only during underlap, only during underlap, or both.

[0042] In addition, the warp knitting machine of this embodiment has at least one ground comb (front ground comb) located in front of the front jacquard combs JB2 and JB3, and at least one ground comb (rear ground comb) located in rear of the rear jacquard combs JB4 and JB5.

[0043] exist Figure 1 In the machine, there is one ground guide bar GB1, which is located in front of the front jacquard guide bars JB2 and JB3. Additionally, there are three ground guide bars GB6, GB7, and GB8, which are located behind the rear jacquard guide bars JB4 and JB5. In each of the ground guide bars GB1, GB6, GB7, and GB8, multiple yarn guides are arranged in the width direction of the weaving machine.

[0044] The floor guide bars GB1, GB6, GB7, and GB8 perform the basic movements used for knitting structures. The multiple yarn guides located on the floor guide bars GB1, GB6, GB7, and GB8 are different from the jacquard yarn guides and cannot perform movements different from other yarn guides located on the same floor guide bar.

[0045] exist Figure 2 The diagram shows the configuration of yarn guides, etc., for ground combs GB1, GB6, GB7, and GB8. Figure 2 In the diagram, the left-right direction represents the width of the knitting machine, and the up-down direction represents the front-to-back direction. Additionally, in... Figure 2 In the GB1, GB6, GB7, and GB8 columns, the vertical lines represent yarn guides. Additionally, the vertical lines in the JB2 to JB5 columns represent jacquard yarn guides. Furthermore, the circles in the FN and BN columns represent knitting needles. In actual warp knitting machines, a ratio of... Figure 2 More yarn guides and knitting needles.

[0046] like Figure 2As shown, the ground guide bars GB1, GB6, GB7, and GB8 are full gauge guide bars. That is, in each of the ground guide bars GB1, GB6, GB7, and GB8, the number of yarn guides per inch is the same as the number of needles per inch, and each yarn guide is positioned in a position corresponding to each needle.

[0047] On the other hand, such as Figure 2 As shown, jacquard guide bars JB2, JB3, JB4, and JB5 are half-gauge jacquard guide bars. Here, the number of jacquard guides per inch is half the number of needles per inch. A jacquard guide bar configured with one jacquard guide per two needles is called a "half-gauge jacquard guide bar".

[0048] If two jacquard guide bars, JB2 and JB3, are combined, the same number of jacquard yarn guides as the number of knitting needles is obtained. Similarly, if two jacquard guide bars, JB4 and JB5, are combined, the same number of jacquard yarn guides as the number of knitting needles is obtained. Figure 2 It can be seen that in each of the four jacquard combs JB2, JB3, JB4, and JB5, one jacquard yarn guide is configured for every two knitting needles.

[0049] Furthermore, the jacquard yarn guides of the four jacquard guide bars JB2, JB3, JB4, and JB5 are each positioned at the same location in the width direction of the braiding machine. Therefore, the jacquard yarn guides of the four jacquard guide bars JB2, JB3, JB4, and JB5 are arranged in a row in the front-to-back direction of the braiding machine.

[0050] exist Figure 1 In the arrangement, at least from ground guide bars GB1 to ground guide bars GB6, pre-needle padding can be performed on the front needle row FN. Additionally, at least from the front pattern guide bars JB2 and JB3 to ground guide bars GB8, pre-needle padding can be performed on the rear needle row BN. For jacquard guide bars JB2, JB3, JB4, and JB5, the yarn drawn from the yarn frame not shown is guided (guided means passing the yarn through the yarn guide).

[0051] The basic movements of the front needle row FN, the back needle row BN, the ground guide bars GB1, GB6, GB7, GB8, and the jacquard guide bars JB2, JB3, JB4, JB5 are controlled by the control unit. Furthermore, the function of the jacquard mechanism is controlled by a control unit that is the same as or different from the control unit controlling the basic movements.

[0052] In addition, the warp knitting machine of this embodiment has the same structure as the well-known double-needle bed Raschel warp knitting machine.

[0053] Warp-knitted fabrics are knitted using a warp knitting machine with the above structure. A general outline of the knitting method is described below.

[0054] First, when knitting warp-knitted fabric, yarn is passed through all the yarn guides on ground guide bars GB1, GB6, GB7, and GB8. Thus, on ground guide bars GB1, GB6, GB7, and GB8, the number of yarns is the same as the number of needles in one needle row. Second, yarn is passed through all the jacquard yarn guides on jacquard guide bars JB2, JB3, JB4, and JB5. Thus, on jacquard guide bars JB2, JB3, JB4, and JB5, the number of yarns is half the number of needles in one needle row.

[0055] The yarn guides of the ground combs GB1, GB6, GB7, and GB8, which conduct yarn through the yarn, and the jacquard yarn guides of the jacquard combs JB2, JB3, JB4, and JB5, move relative to the needles of the front needle row FN and the rear needle row BN, thereby weaving the warp-knitted fabric.

[0056] When weaving warp-knitted fabric, the front base fabric is woven using the front guide bar GB1. Additionally, as described later, yarn supplied from the ground guide bar GB6 is woven into the front base fabric; therefore, it can be said that the ground guide bar GB6 also weaves the front base fabric. Furthermore, in parallel with the weaving of the front base fabric, the back base fabric is woven using the rear guide bars GB7 and GB8.

[0057] Furthermore, in parallel with the weaving of the front and back base fabrics, the structure obtained by the jacquard guide bars JB2, JB3, JB4, and JB5 is formed. The jacquard mechanisms of each of the jacquard guide bars JB2, JB3, JB4, and JB5 function differently depending on their position, thereby forming different structures from the yarns supplied from the jacquard guide bars JB2, JB3, JB4, and JB5 according to their position. Examples of different structures include those in which the jacquard yarn forms loops on both the front and back base fabrics, and those in which the jacquard yarn is inserted into the front base fabric without forming loops on any base fabric.

[0058] Jacquard yarns knitted into the front and back base fabrics appear on the surface of these base fabrics, forming a jacquard pattern. Here, jacquard pattern refers to the pattern formed by the jacquard yarns appearing on the surface of the warp-knitted fabric. In addition, the jacquard yarns knitted into both the front and back base fabrics connect these base fabrics together.

[0059] Furthermore, the yarn supplied from the ground guide bar GB6 (the rear ground guide bar closest to the rear jacquard guide bars JB4 and JB5) forms loops in the front base fabric and is knitted into the front base fabric. Therefore, the portion of the jacquard yarn positioned forward of the ground guide bar GB6, which becomes the insert structure, is pressed into the front base fabric by the yarn supplied from the ground guide bar GB6. Thus, the insert yarn pressed into the front base fabric can be considered as being inserted into the front base fabric.

[0060] The following section provides a more detailed example of the weaving method. Figures 3-5 This is a specific weave diagram of this embodiment. In each weave diagram, F represents a loop row knitted by the front needle row FN, and B represents a loop row knitted by the back needle row BN.

[0061] exist Figure 3 The diagram shows knitting structures obtained using ground carding bars GB1, GB6, GB7, and GB8. Additionally, it also shows the basic knitting structures obtained using jacquard carding bars JB2, JB3, JB4, and JB5. The basic structure refers to the knitting structure when the jacquard mechanism is not in operation.

[0062] like Figure 3 As shown in (a), the knitting structure of GB1 ground comb is a knitting structure in which loops are formed on the front base fabric. If represented by chain number... Figure 3 The knitting pattern of (a) is 0—1—1—1 / 3—2—2—2 / / . The front bottom fabric is woven using the ground comb GB1.

[0063] In addition, in this chain numbering representation, the first two of the four numbers in the range separated by " / " (0-1 and 3-2 in the example above) indicate the effect on the needles of the preceding needle row FN, and the last two (1-1 and 2-2 in the example above) indicate the effect on the needles of the following needle row BN.

[0064] In addition, such as Figure 3 As shown in (d), the knitting structure of GB6 ground comb is a knitting structure in which loops are formed on the front base fabric. If represented by chain number... Figure 3 The knitting structure of (d) is 1—0—0—0 / 0—1—1—1 / / . In this way, the yarn supplied from the ground comb GB6 is knitted into the front base fabric, and the jacquard yarn, which is positioned further forward than the ground comb GB6, is pressed into the front base fabric.

[0065] In addition, such as Figure 3 As shown in (e), the knitting structure of GB7 ground comb is a knitting structure in which loops are formed on the back base fabric. If represented by chain number... Figure 3 The knit structure of (e) is 0—0—0—1 / 1—1—1—0 / / . Additionally, as... Figure 3 As shown in (f), the knitting structure of GB8 ground comb is a knitting structure in which loops are formed on the back base fabric. If represented by chain number... Figure 3 The knitting structure of (f) is 2—2—0-1 / 1-1-3-2 / / .

[0066] Thus, the back base fabric is woven with two ground guide bars GB7 and GB8. This knitted structure, woven with two ground guide bars GB7 and GB8, is a type of warp-knitted chain knit (consisting of a chain knit and a warp knit with two or more needle backing yarns, where the warp yarns are pressed into the chain knit yarns). Warp-knitted chain knits are known as stable structures with low elasticity.

[0067] exist Figure 3 The basic weave obtained from jacquard combs JB2, JB3, JB4, and JB5 is also shown. For example... Figure 3 As shown in (b), the basic structure obtained from the front pattern combs JB2 and JB3 is a knitted structure in which loops are formed on the front and back base fabrics. In addition, the basic structure obtained from the front pattern combs JB2 and JB3 is a knitted structure in which jacquard yarns are knitted across two needles (therefore, in the warp-knitted fabric 10, the jacquard yarns cross two loop warp lines). Figure 3 The basic organization chain number of (b) is 1-0-1-0 / 1-2-1-2 / / .

[0068] like Figure 3 As shown in (c), the basic structure obtained by the back jacquard combs JB4 and JB5 is a knitted structure in which loops are formed on the front and back base fabrics. In addition, the basic structure obtained by the back jacquard combs JB4 and JB5 is a knitted structure in which jacquard yarns are knitted across two needles (therefore, in the warp-knitted fabric 10, the jacquard yarns cross two loop warp lines). Figure 3 The basic organization chain number of (c) is 1-0-1-0 / 1-2-1-2 / / . Figure 3 The basic weaves of (b) and (c) form a checkerboard pattern on the front and back base fabrics.

[0069] exist Figure 4 as well as Figure 5 The diagram shows the knit structure when the jacquard mechanism is not in operation. Figure 4 as well as Figure 5 In the diagram, dashed lines represent the basic structures obtained by jacquard combs JB2, JB3, JB4, and JB5, while solid lines represent examples of knitted structures obtained by jacquard combs JB2, JB3, JB4, and JB5 when the jacquard mechanism is in operation.

[0070] Additionally, in each knitting pattern diagram, "H" indicates that the jacquard mechanism is not activated. In this case, the jacquard yarn guide is in the same position as when knitting the basic structure. Conversely, "T" indicates that the jacquard mechanism is activated. In this case, the jacquard yarn guide is displaced from the position used in the basic structure. "T" and "H" are indicated above and below a needle position; the upper "T" or "H" indicates whether the jacquard mechanism is activated or not when padding yarn in front of the needle, and the lower "T" or "H" indicates whether the jacquard mechanism is activated or not when padding yarn behind the needle.

[0071] Figure 4 A knitted structure is a knitted structure used to incorporate yarns from any one jacquard comb into the back base fabric and make it appear on the surface of the back base fabric (the back surface of the warp-knitted fabric). Figure 4 (a) is a knitted structure achieved without the action of a jacquard mechanism, and... Figure 3 The basic organization of (b) and (c) is the same. Furthermore, Figure 4 (b) refers to a knitting structure in which the jacquard mechanism is activated when all the loops of the basic structure are laid across the back of the needle or when the front of the needle is padded. Figure 4 (b) The chain number of the knitted structure is 1—1—1—1 / 2—2—2—2 / / .

[0072] As can be seen from the figure, Figure 4 (a) The jacquard yarn of the knitted structure is knitted into both the front and back base fabrics, appearing on the surface of both the front and back base fabrics. Furthermore, the jacquard yarn is knitted across two knitting needles. Additionally, the jacquard yarn forms an Ichimatsu checkerboard pattern on both the front and back base fabrics.

[0073] Figure 4 (a) The jacquard yarns of the knitted structure are knitted into both the front and back base fabrics, thus connecting the front and back base fabrics. Specifically, the knitted arcs formed on the front base fabric and the knitted arcs formed on the back base fabric are connected by the sinker arcs of the jacquard yarns that form these knitted arcs. Thus, the yarns that form knitted arcs on the front and back base fabrics and connect the two base fabrics are also called "double-sided terry loops".

[0074] in addition, Figure 4 (b) The jacquard yarns of the knitted structure are inserted into the front base fabric, and do not appear on the surface of either the front or back base fabric. Figure 4 (b) When knitting, the jacquard yarns are not connected to the front and back base fabrics.

[0075] in addition, Figure 5 It refers to the knitting structure of the jacquard combs JB2, JB3, JB4, and JB5 when all the jacquard yarns are inserted into the front bottom fabric. Figure 5knitted structure and Figure 4 (b) has the same knit structure. Figure 5 The jacquard yarns of the knitted structure are inserted into the front base fabric, and are not visible on the surface of either the front or back base fabric. Additionally, Figure 5 The jacquard yarns of the knitted structure are not connected to the front and back base fabrics.

[0076] Furthermore, if the jacquard yarn is inserted between the front and back base fabrics, the inserted portion itself becomes unstable. However, by weaving the yarn supplied from the ground comb GB6 into the front base fabric as described above, the inserted portion of the jacquard yarn is pressed into the front base fabric and becomes stable.

[0077] During the weaving process of this embodiment, the above-described procedures are followed. Figures 3-5 The knitting of the structure. Specifically, it utilizes ground combs (GB1, GB6, GB7, GB8) for knitting. Figure 3 Knitted structure.

[0078] Concurrently, at a designated position on the warp-knitted fabric, any one of the jacquard guide bars JB2, JB3, JB4, and JB5 is selected, and the knitting structure of the selected jacquard guide bar becomes... Figure 4 (a) knit structure. Furthermore, the remaining 3 jacquard combs form the knit structure... Figure 4 (b) knit structure. Therefore, only... Figure 4 (a) The jacquard yarn of the knitted structure is knitted into both the front and back base fabrics, appearing on the surface of both the front and back base fabrics. Multiple positions are set in the warp-knitted fabric, and at each position, any one of four jacquard guides JB2, JB3, JB4, and JB5 is selected, and the fabric is knitted using the selected jacquard guide. Figure 4 (a) Knitted structure.

[0079] In this embodiment, different colored yarns are spun in jacquard combs JB2, JB3, JB4, and JB5. Furthermore, in the ground combs GB7 and GB8, which form the backing fabric, different yarns are spun compared to those in jacquard combs JB2, JB3, JB4, and JB5. In this case, the same colored yarn is spun in ground combs GB7 and GB8. The raw materials and thickness (fineness) of each yarn are not limited. Natural fibers such as silk or cotton, or synthetic fibers such as polyester or nylon, can be used as raw materials. Various yarns, such as filament yarns or staple yarns, can be used.

[0080] In this openwork state, as described above, at each position of the warp-knitted fabric, the jacquard yarn from one of the jacquard combs JB2, JB3, JB4, and JB5 is knitted into... Figure 4(a) a knitted structure, incorporating other jacquard combed jacquard yarns into Figure 4 (b) Knit structure. Thus, the color of this portion of the front and back base fabrics becomes the color of the jacquard yarn of the selected jacquard comb.

[0081] At least four such positions are set in the warp-knitted fabric, and at each position, any one of the four jacquard combs JB2, JB3, JB4, and JB5 is selected for weaving. Figure 4 (a) knit structure. Furthermore, the four jacquard combs JB2, JB3, JB4, and JB5 are each selected at least once.

[0082] In addition, in a portion of warp-knitted fabrics, the jacquard combs JB2, JB3, JB4, and JB5 knitting structures become... Figure 5 Knitted structure. Figure 5 The yarns of the knitted structure do not appear on the surface of either the front or back base fabric. Therefore, in Figure 5 In the knitted structure, the color of the front bottom fabric surface becomes the color of the yarns in the ground comb GB1 and GB6, and the color of the back bottom fabric surface becomes the color of the yarns in the ground comb GB7 and GB8.

[0083] In this way, within the warp-knitted fabric, there are sections on the back base fabric surface where any jacquard yarns of the combs JB2, JB3, JB4, and JB5 appear, while there are sections on the back base fabric surface where no jacquard appears. As a result, in the back base fabric, jacquard patterns of different colors are formed in each section.

[0084] As described above, different colored yarns are spun through the jacquard combs JB2, JB3, JB4, and JB5, and further different yarns are spun through the ground combs GB7 and GB8. This creates a jacquard pattern composed of five colors on the back fabric. Additionally, different colored jacquard patterns are also created in each section of the front fabric.

[0085] Figure 6 The warp-knitted fabric 10 is knitted by the aforementioned double-needle-bed Raschel warp knitting machine. Figures 3-5 10. Warp-knitted fabric composed of knitted structures. Figure 6 The surface of the back sole fabric of the warp-knitted fabric 10 is depicted. The warp-knitted fabric 10 integrally knits the upper portion 11 and its surrounding portion 12 used for the shoe upper. In the upper portion 11, starting from the portion near the tongue, there are a first portion 21, a second portion 22, a third portion 23, and a fourth portion 24 in sequence.

[0086] Parts 1 through 4 (24) and the surrounding portion 12 are each a different color. In this embodiment, part 1 (21) is yellow, part 2 (22) is white, part 3 (23) is light blue, and part 4 (24) is cyan. The surrounding portion 12 is a color close to gray.

[0087] In weaving Figure 6 In the warp-knitted fabric 10, semi-transparent yarns are woven through GB1 (ground comb), yellow yarns through JB2 (jacquard comb), white yarns through JB3 (jacquard comb), light blue yarns through JB4 (jacquard comb), and cyan yarns through JB5 (jacquard comb). Semi-transparent yarns are woven through GB6 to GB8 (ground comb). The semi-transparent yarns woven through GB1 and GB6 to GB8 (ground comb) are monofilament yarns. The yarns woven through JB2 to JB5 (jacquard yarns) are processed yarns.

[0088] On the warp-knitted fabric 10 as a whole, ground comb GB1, GB6~GB8 are used for... Figure 3 The knitting structure. On the other hand, the knitting structure obtained by jacquard combs JB2 to JB5 varies depending on the position.

[0089] When weaving section 1, part 21, use the jacquard comb JB2, which thread through the yellow yarn, to weave loops on the front and back base fabrics. Figure 4 (a) Knitting structure. Additionally, using other jacquard combs JB3 to JB5, a knitting pattern is created by inserting jacquard yarns into the front base fabric. Figure 4 (b) Knitted structure. Therefore, only the yellow yarn appears on the surface of the back base fabric among the jacquard yarns, and part 1 21 becomes yellow.

[0090] In Part 2, at point 22, using a jacquard comb JB3 threaded with white yarn, loops are formed on the front and back base fabrics. Figure 4 (a) Knitting structure. Additionally, using other jacquard combs JB2, JB4, and JB5, a knitting pattern is created by inserting the jacquard yarn into the front base fabric. Figure 4 (b) Knitted structure. Therefore, only white yarn appears on the surface of the back base fabric among the jacquard yarns, and part 22 becomes white.

[0091] When weaving section 3, part 23, use the jacquard comb JB4, which uses light blue yarn, to weave loops on the front and back base fabrics. Figure 4 (a) Knitting structure. Additionally, using other jacquard combs JB2, JB3, and JB5, a knitting pattern is created where the jacquard yarns are inserted into the front base fabric. Figure 4(b) Knitted structure. Therefore, only light blue yarn appears on the surface of the back base fabric among the jacquard yarns, and part 3, 23, becomes light blue.

[0092] When weaving section 4, part 24, use the jacquard comb JB5, which uses a threaded blue yarn, to weave loops on the front and back base fabrics. Figure 4 (a) Knitting structure. Additionally, using other jacquard combs JB2, JB3, and JB4, a knitting pattern is created by inserting the jacquard yarn into the front base fabric. Figure 4 (b) Knitted structure. Therefore, only the blue yarn appears on the surface of the back base fabric among the jacquard yarns, and part 4, 24, becomes blue.

[0093] In this way, a jacquard pattern consisting of parts 1 to 4, 24, which are distinguished by color, is formed on the surface of the back base fabric. In addition, in parts 1 to 4, 24, the jacquard yarns form loops on both the front and back base fabrics, thus connecting the front and back base fabrics.

[0094] In addition, since the jacquard yarn forms loops on both the front and back base fabrics, the same jacquard pattern as the back is also formed on the surface of the front base fabric of the warp-knitted fabric 10.

[0095] In addition, when knitting the peripheral portion 12, the knit structure obtained from the jacquard combs JB2 to JB5 shall, in principle, become Figure 5 The insertion structure. However, it is preferable to also connect the front and back base fabrics in the peripheral portion 12. Thus, in various places of the peripheral portion 12, any jacquard yarn is used for weaving. Figure 4 (a) Knitted structure.

[0096] Compared to the warp-knitted fabric woven using the above methods, which undergoes heat setting and other finishing processes, the actual warp-knitted fabric woven by the warp knitting machine consists of multiple upper sections 11 arranged longitudinally and transversely. In an appropriate post-knitting process, multiple upper sections 11 are extracted from one warp-knitted fabric. The extracted upper sections 11 are used as the uppers of the shoes.

[0097] Based on the double-needle bed Raschel warp knitting machine and the knitting method described above, it is possible to knit warp-knitted fabrics with beautiful surfaces.

[0098] In detail, the double-needle bed Raschel warp knitting machine of this embodiment is provided with a pair of front jacquard guide bars JB2 and JB3 and a pair of rear jacquard guide bars JB4 and JB5. These jacquard guide bars JB2, JB3, JB4, and JB5 are half-gauge jacquard guide bars. Therefore, loops can be formed on the back base fabric at a specified position through any one of the selected half-gauge jacquard guide bars, and the jacquard yarn can be inserted into the knitting structure of the front base fabric through the remaining three half-gauge jacquard guide bars.

[0099] Furthermore, the knitting structure described above is achieved by using different colored jacquard yarns through four half-gauge jacquard combs JB2, JB3, JB4, and JB5. As a result, only the yarns of different colors appear on the surface of the back base fabric at each position, thus forming a beautiful jacquard pattern.

[0100] Furthermore, in the double-needle bed Raschel warp knitting machine of this embodiment, the four half-needle pitch jacquard guide bars JB2, JB3, JB4, and JB5 are as follows: Figure 2 The machine has jacquard yarn guides at the same position in the width direction of the knitting machine. Therefore, jacquard yarns from any half-gauge jacquard guide bar can form loops in the same wale on the back fabric. Thus, when different colored jacquard yarns are woven through the four half-gauge jacquard guide bars JB2, JB3, JB4, and JB5, as described above, and only the different colored yarns appear on the surface of the back fabric at each position, the boundaries of the different colored positions will not shift. Therefore, a beautiful jacquard pattern without shifting can be formed.

[0101] Furthermore, in a half-gauge jacquard comb, only one jacquard yarn guide is provided for every two knitting needles. As a result, when each jacquard yarn is only knitted into one wale of the backing fabric, the wale with jacquard yarn and the wale without jacquard yarn alternate, creating vertical stripes in the warp-knitted fabric formed by the color of the jacquard yarn.

[0102] However, in the weaving method of this embodiment, since the jacquard yarn is woven into two or more wale loops across the back base fabric, the jacquard yarn is woven into all wale loops. Therefore, vertical stripes formed by the color of the jacquard yarn will not appear on the warp-knitted fabric, and the overall appearance of the position where the jacquard yarn forms a loop is the color of the jacquard yarn.

[0103] Here, a knitted structure is created by weaving jacquard yarns in a wedge pattern across two or more loops on the back base fabric, forming an Ichimatsu checkerboard pattern on the back base fabric. Therefore, at a specific location on the warp-knitted fabric, jacquard yarns of a particular color are displayed in a manner that forms an Ichimatsu checkerboard pattern on the back base fabric, and when the back base fabric is viewed from a distance, the entire area at that specific location appears to be that color.

[0104] Furthermore, in the weaving method of this embodiment, at least four jacquard yarns are present at predetermined positions where loops are formed on the back base fabric, and a different half-gauge jacquard guide bar is selected at each predetermined position. Therefore, a jacquard pattern consisting of four colors can be formed on the warp-knitted fabric. Moreover, by using yarns of different colors—GB7 and GB8 through yarns and any jacquard yarns—on the back base fabric of the warp-knitted fabric can be formed into five colors.

[0105] Furthermore, in the knitting method of this embodiment, any one of the jacquard combs JB2, JB3, JB4, and JB5 is used to knit a structure in which jacquard yarns form loops on the front and back base fabrics. Thus, not only can jacquard patterns be formed on both the front and back base fabrics, but the jacquard yarns can also connect the front and back base fabrics.

[0106] In addition, since the rear ground comb GB6, which is closest to the rear jacquard combs JB4 and JB5, forms a loop on the front bottom fabric, the jacquard yarn can be pressed against the front bottom fabric, thus stabilizing the jacquard yarn.

[0107] Furthermore, in the weaving method of this embodiment, the knitting structure of the back base fabric is a warp-knitted chain structure woven using two ground guide bars GB7 and GB8. Therefore, the warp-knitted fabric as a whole becomes a stable warp-knitted fabric with low elasticity.

[0108] For the above implementation method, any one of the several modifications described below can be applied. Furthermore, for the above implementation method, to the extent possible, any two or more of the several modifications described below can be combined. In addition, various modifications can be made besides the following modifications.

[0109] <Example 1 of the amendment>

[0110] Figure 7 The examples shown are variations of the knitting structure of jacquard combs JB2, JB3, JB4, and JB5. Figure 7 (a) and (b) are both knitted structures woven by the action of a jacquard mechanism.

[0111] Figure 7 The knitting structure of (a) is a knitting structure in which loops are formed on the back bottom fabric but not on the front bottom fabric. The chain number of this knitting structure is 1—1—1—0 / 2—2—1—2 / / . Figure 7 In (a), the jacquard yarns of the knitted structure are only knitted into the back base fabric and appear only on the surface of the back base fabric. Additionally, Figure 7 (a) The portion between loops in the jacquard yarn of the knitted structure ( Figure 7 (a) The part indicated by the arrow) is inserted into the front bottom fabric. Additionally, Figure 7 (b) knit structure and Figure 4 (b) has the same knit structure. Figure 7 (b) The jacquard yarn of the knitted structure is inserted into the front base fabric and does not appear on the surface of the back base fabric or the surface of the front base fabric.

[0112] During the knitting of this modified example, at a specified position on the warp-knitted fabric, any one of the four jacquard guide bars JB2, JB3, JB4, and JB5 becomes a knitting structure. Figure 7 The knit structure of (a) is such that the remaining 3 jacquard combs become... Figure 7 (b) of the knit structure. Therefore, at the specified position, only... Figure 7 In (a), the jacquard yarns of the knitted structure appear on the surface of the back base fabric, while the other jacquard yarns do not appear on the surface of the back base fabric. By selecting different jacquard combs at each position, a multicolored jacquard pattern is formed on the back base fabric.

[0113] Furthermore, no jacquard yarns from the JB2, JB3, JB4, and JB5 combs appear on the surface of the front base fabric. Therefore, in the warp-knitted fabric using this modified example, a jacquard pattern is formed on the surface of the back base fabric, but not on the surface of the front base fabric. The surface of the front base fabric becomes the color of the yarns from the GB1 and GB6 combs.

[0114] In the case of this change, Figure 7 In (a), the portion between loops in the jacquard yarn of the knitted structure is inserted into the front backing fabric. If this inserted portion is pressed to stabilize it, the knitted structure of the ground comb GB6 is modified as in Example 3 (see Figure 3) to connect the front and back backing fabrics. Figure 9 The knitting structure of the ground comb GB6. According to the knitting structure of Modified Example 3, since the yarns of the ground comb GB6 are knitted into the front bottom fabric, the yarns of the ground comb GB6 will... Figure 7 The inserted portion of the jacquard yarn of the knitted structure in (a) is pressed into the front base fabric. Furthermore, according to the knitted structure of modified Example 3, the yarn of the ground comb GB6 connects the front base fabric and the back base fabric.

[0115] <Example 2 of the amendment>

[0116] Figure 8 The examples shown are variations of the knitting structure of jacquard combs JB2, JB3, JB4, and JB5. Figure 8 (a) and (b) are both knitted structures woven by the action of a jacquard mechanism.

[0117] Figure 8The knitting structure in (a) is a knitting structure in which loops are formed on the front and back base fabrics. The chain number of this knitting structure is 1-0-2-0 / 1-2-1-3 / / . From the chain number, it can be seen that the knitting... Figure 8 In (a) of the jacquard knitting structure, a 1-stitch pre-needle pad is applied to the needles of the front needle row FN, and a 2-stitch pre-needle pad is applied to the needles of the back needle row BN. Additionally, Figure 8 (b) knit structure and Figure 4 (b) has the same knit structure. Figure 8 (b) The jacquard yarn of the knitted structure is inserted into the front base fabric and does not appear on the surface of the back base fabric or the surface of the front base fabric.

[0118] During the knitting of this modified example, at a specified position on the warp-knitted fabric, any one of the jacquard combs JB2, JB3, JB4, and JB5 becomes... Figure 8 The knit structure of (a) is such that the remaining 3 jacquard combs become... Figure 8 The knit structure of (b). Therefore, only... Figure 8 In (a), the jacquard yarns of the knitted structure appear on the surface of both the front and back base fabrics, while other jacquard yarns do not appear on the surface of the back base fabric. Furthermore, different jacquard combs JB2, JB3, JB4, and JB5 are selected at each position of the warp-knitted fabric.

[0119] exist Figure 2 In the warp knitting machine shown, for each of the jacquard guide bars JB2, JB3, JB4, and JB5, only one jacquard yarn guide is configured relative to two needles. Therefore, in any one jacquard guide bar, the needles in the back needle row BN perform a knitting structure with only one stitch of pre-needle yarn padding (e.g.,...). Figure 4 In the case of (a) knitted structure, in the back base fabric, there is no jacquard yarn in the adjacent loops where the jacquard yarn loops appear.

[0120] However, according to this modified example, since the jacquard yarn forms a loop by crossing two loops in a single loop row, jacquard yarn also appears in the adjacent loops of the loops where the jacquard yarn appears in the back base fabric, and thus jacquard yarn appears in all loops of the back base fabric. Consequently, the color in the back base fabric becomes darker, and the jacquard pattern becomes more pronounced.

[0121] In addition, as Figure 8 In a variation of the knitting structure in (a), there is also a knitting structure in which the jacquard comb does not have needles in the front needle row FN with needle padding. In this knitting structure, the portion between the loops in the jacquard yarn is inserted into the front base fabric.

[0122] <Example 3 of the amendment>

[0123] Figure 9 The example shown is a variation of the knitting structure of GB6 ground comb. (By...) Figure 9 It can be seen that the knitting structure of GB6 ground comb is as follows: loops are formed in all loop rows in the front base fabric, and loops are formed in every other loop row in the back base fabric. Figure 9 If the knitted structure is represented by the chain number, it is 1—0—0-1 / 0-1-1-1 / / .

[0124] By weaving the GB6 carding yarn into the front and back base fabrics in this way, the front and back base fabrics are connected together, and the intermediate layer between the front and back base fabrics is stabilized. In addition, the jacquard yarn is pressed into the front base fabric.

[0125] <Amendment Example 4>

[0126] Figure 10 The example shown is a modified version of the knitting structure of the GB8 carding bar. In this modified version, the knitting structure of the GB8 carding bar is the same as in the embodiment described above, consisting of loops formed on the back base fabric. However, in the knitting structure of the GB8 carding bar in the embodiment described above, the yarn is knitted across 3 loop warp rows (that is, the yarn travels back and forth 3 stitches in the warp direction (weft direction) within one repeating unit of the knitting structure). In contrast, in this modified version of the GB8 carding bar, the yarn is knitted across only 2 loop warp rows (that is, the yarn travels back and forth 2 stitches in the warp direction (weft direction) within one repeating unit of the knitting structure).

[0127] If represented by chain number Figure 10 The knitting structure is 1—1—0—1 / 1—1—2—1 / / . The yarn is knitted in by crossing only 2 loops in the warp direction, and the lateral displacement along the warp direction (weft direction) is small, thus the back base fabric becomes thinner.

[0128] <Example 5 of the amendment>

[0129] Besides shoe uppers, warp-knitted fabrics can also be used as raw materials for clothing, interior decoration, and small items.

[0130] Explanation of reference numerals in the attached figures

[0131] FN…front needle row; BN…back needle row; JB2, JB3…front jacquard comb; JB4, JB5…back jacquard comb; GB1, GB6, GB7, GB8…ground comb; 10…warp-knitted fabric; 11…upper part; 12…peripheral part; 21…part 1; 22…part 2; 23…part 3; 24…part 4.

Claims

1. A double-needle-bed Raschel warp knitting machine, As a row of multiple needles, it has a front needle row and a back needle row. The jacquard guide bar, which has multiple jacquard yarn guides arranged in a row, includes a pair of front jacquard guide bars and a pair of rear jacquard guide bars. The front jacquard guide bars and the rear jacquard guide bars are both half-gauge jacquard guide bars. As a ground guide bar with multiple yarn guides arranged in a row, it comprises at least one front ground guide bar located further forward than the aforementioned front jacquard guide bar and at least one rear ground guide bar located further rear than the aforementioned rear jacquard guide bar, characterized in that, The four half-gauge jacquard guide bars are equipped with jacquard yarn guides at the same position in the width direction of the knitting machine, and thus the jacquard yarn guides of the four half-gauge jacquard guide bars are arranged in a row in the front-to-back direction of the knitting machine.

2. A method for knitting a double-needle-bed Raschel warp-knitted fabric, wherein, Using the double-needle bed Raschel warp knitting machine of claim 1 The front bottom fabric is woven using the aforementioned front comb bar. The back bottom fabric is woven using the aforementioned back side comb bar. At the designated position, select one of the four half-gauge jacquard guide bars mentioned above, and use the selected half-gauge jacquard guide bar to knit a structure in which the yarn crosses over two or more loops on the back base fabric and forms loops on the back base fabric. At the same designated position, using three unselected half-gauge jacquard combs, a knitted structure is created that allows the yarn to be inserted into the aforementioned front base fabric.

3. The knitting method for double-needle-bed Raschel warp-knitted fabric as described in claim 2, wherein, There are at least four of the above-mentioned positions, and different half-stitch jacquard combs are selected for each of the above-mentioned positions.

4. The knitting method for double-needle-bed Raschel warp-knitted fabric as described in claim 2 or 3, wherein, Using the half-gauge jacquard comb selected above, a knitted structure is created that forms loops of yarn on the front and back base fabrics.

5. The knitting method for double-needle-bed Raschel warp-knitted fabric as described in claim 2 or 3, wherein, Using the half-gauge jacquard comb selected above, a knitted structure is created in which the yarn forms loops only on the back bottom fabric and the portion of the yarn between the loops is inserted into the front bottom fabric.

6. The method for knitting a double-needle-bed Raschel warp-knitted fabric as described in claim 2 or 3, wherein, Using the half-gauge jacquard comb selected above, a knitting structure is created in which the yarn is padded with two stitches in front of the back base fabric.

7. The method for knitting a double-needle-bed Raschel warp-knitted fabric as described in claim 2 or 3, wherein, The aforementioned double-needle bed Raschel warp knitting machine is equipped with multiple rear side guide bars. Using the rear bottom comb closest to the rear jacquard comb, a loop is formed on the front bottom fabric.

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