Design method of four-row warp-knitted bottomless jacquard fabric

Abstract

The invention discloses a design method of a four-row warp knitting bottomless jacquard fabric, and belongs to the technical field of warp knitting fabric design. The method comprises the steps that basic parameters are configured, half-machine-number jacquard guide bars of the jacquard warp knitting machine are set, the states H and T of jacquard guide needles are defined, and a yarn laying digital cycle is set to be four transverse rows; a pattern design pattern is generated, and pattern design of the jacquard fabric is carried out with two colors according to the pattern effect; generating an action design pattern, retrieving continuous same-color design grids in each row in the pattern design pattern, and refilling the continuous same-color design grids with colors, the number of the design grids refilled for a single time being (the number of the continuous same-color design grids + 1) / 2-1; and assignment offset action: in combination with the state of the jacquard guide needle, assigning offset action to each row of the jacquard guide needle according to a color assignment method. Through the specific design method, the parameterized correlation degree between the pattern design drawing and the action design drawing is improved, the design intelligence is improved, yarn path conflicts are reduced, and the efficiency and quality of fabric generation are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of warp knitting design, in particular to a design method of four-cross warp non-base jacquard fabric. BACKGROUND

[0002] Warp non-base jacquard fabric is a special warp knitted fabric, and the design method of warp jacquard fabric mainly depends on the needle deflection of the guide bar of the jacquard to realize different pattern effects, without relying on the traditional "base stitch" as the foundation. The complex pattern fabric produced by the warp knitting technology controlled by the jacquard jacquard device controls the looping or wefting of the yarn, and the pattern area is directly knitted by the yarn to form a dense pattern structure, and the non-pattern area presents a transparent or mesh structure. Warp non-base fabric is widely used, and the elasticity of the fabric can be used to make high-elasticity and breathable underwear, and the structural change of the fabric can be used to make decorative fabric with exquisite patterns, and it can also be used in the medical textile field to make breathable and antibacterial dressings and other customized medical fabrics.

[0003] The process of ordinary two-cross warp non-base jacquard fabric is knitted by two independent half-machine-number jacquard combs, and the number of the guide bar of the jacquard comb is two-cross cycle, forming a pull structure, one longitudinal row is pulled in the odd cross, and the adjacent longitudinal row is pulled in the even cross, causing uneven mesh structure. The cross cycle of the guide bar of the jacquard comb of the four-cross warp non-base jacquard fabric process is four, and through reasonable design, different longitudinal rows can be pulled in the same cross, and the structure is uniform. Therefore, the four-cross process has a unique organizational structure advantage.

[0004] However, the four-cross process also has the following technical bottlenecks: In the four-cross cycle, if the jacquard yarn in a cross does not form a loop effectively, it will cause local collapse and yarn diffusion; the pattern edge is not clear and the pattern is blurred; the fabric strength is low, the non-base structure is easy to tear, and the pattern part is easy to be damaged by external force; The data volume of the four-cross design is large, which leads to difficulties in designing pattern design and action design, errors, low efficiency, long time consumption, and difficulty in modification; It is difficult to detect yarn path conflicts. In non-base jacquard, multiple jacquard yarns may cross and collide within four crosses, affecting production efficiency; When the pattern design is converted into the action design, the conversion accuracy is low, the conversion efficiency is slow, and it cannot meet the demand of rapid design.

[0005] The parameterization correlation between the pattern design and the action design is low, and the corresponding action design cannot be automatically generated with the change of the pattern design, which increases the design workload and the possibility of errors.

[0006] In view of this, it is necessary to develop a four-column warp knitting no bottom jacquard fabric design method, reduce the design of pattern design and action design chart difficulty, improve the relevance of the two, and reduce the yarn path conflict in actual production, improve the generation efficiency. SUMMARY

[0007] The present application provides a four-column warp knitting no bottom jacquard fabric design method, which solves the problem that the jacquard yarn is not effectively looped, resulting in easy diffusion of the fabric, low strength, affecting the generation process and the final product; the design of pattern design and action design chart is difficult, the efficiency is low, and the error is easy; the parameterization correlation between the pattern design and the action design chart is low.

[0008] The core technical scheme of the present application is that by grouping colors, each group of colors is designed separately, and when the pattern design is converted into the action design, the jacquard guide needle state is introduced, and the method of color assignment is used to assign the offset action to each column of jacquard guide needles, which simplifies the design difficulty and can efficiently, accurately and simply realize the process design of four-column warp knitting no bottom jacquard fabric.

[0009] The method includes but is not limited to the following steps: A four-column warp knitting no bottom jacquard fabric design method: S1 Configure basic parameters: The jacquard warp knitting machine includes a half-machine number jacquard guide bar; The jacquard guide needle state on the jacquard guide bar is set to H and T: H represents that the jacquard guide needle is in the original position without offset, and T represents that the jacquard guide needle is offset to the left by one needle pitch; The inlay number code cycle is set to four columns, and the yarn is threaded at the position specified by the inlay number code.

[0010] S2 Generate pattern design: Use two colors to design the pattern of the jacquard fabric according to the pattern effect; S3 Generate action design chart: Retrieve the continuous same-color design grid of each row in the pattern design, and re-color the continuous same-color design grid, if the continuous same-color design grid is odd, the number of design grids re-colored at a time is: (continuous same-color design grid number + 1) / 2 - 1; S4 Assign offset action: Combine the jacquard guide needle state, and assign the offset action to each column of jacquard guide needles according to the color assignment method.

[0011] Further, S2 generates a pattern design, which includes: S21 Fill the initial design: select red and white colors to fill the initial design as a checkerboard pattern; S22 jacquard fabric pattern design: replace part of the white design grid with red design grid, and the continuous red design grid constitutes a single repeating pattern of four horizontal column warp knitting without bottom jacquard fabric.

[0012] Further, the red design grid is set to be without mesh, and the white design grid is set to be with mesh.

[0013] Further, the S3 generation action design includes: S31 searches for continuous red design grids in each row of the pattern design, and the continuous red design grids are odd numbers, and finds the rightmost design grid and the leftmost design grid of each row of continuous red design grid groups; S32 fills blue from the right second design grid of the rightmost design grid to the left, and continues to fill blue with one grid interval; S33 fills green from the right first grid of the leftmost design grid to the right, and continues to fill green with one interval.

[0014] Further, if there are less than two grids to the right of the rightmost design grid in S32, then continue to fill to the left.

[0015] Further, if the number of continuous same color design grids in the S3 generation action design is even, then the color is filled according to the following rules: Number each row of the pattern design to determine odd rows and even rows, If this is an odd row, replace the color according to the rule of one blue and one green, that is, change the first design grid to blue, the second design grid to green, and so on until the entire row is replaced; If this is an even row, replace the color according to the rule of one green and one blue, that is, change the first design grid to green, the second design grid to blue, and so on until the entire row is replaced.

[0016] Further, the S4 value assignment action includes: Set one design grid to represent one needle and two horizontal columns The first horizontal column of the red design grid is assigned a value of H and the second horizontal column is assigned a value of T; The first horizontal column of the white design grid is assigned a value of T and the second horizontal column is assigned a value of H; The first horizontal column and the second horizontal column of the green design grid are both assigned a value of H; The first horizontal column and the second horizontal column of the blue design grid are both assigned a value of T.

[0017] Further, the guide needles of the jacquard guide bar are installed with a needle pitch offset of 1, and the yarn is fully threaded.

[0018] Further, the half-gauge jacquard guide bars are two, namely JB1 and JB2, the lapping number of JB1 is set as 1-0 / 2-3 / 3-4 / 2-1 / / , and the lapping number of JB2 is set as 3-4 / 2-1 / 1-0 / 2-3 / / .

[0019] The present application has the following technical effects: 1. Each needle can knit a loop of yarn without repeating or missing loops in any course, solving the problems of local collapse and yarn diffusion, making the pattern edge clearer and the fabric strength significantly improved; 2. By grouping colors, the design amount is reduced, the design difficulty is simplified, the design efficiency is improved, errors are less likely to occur, and modifications are convenient; 3. When the pattern design is converted into the action design, the conversion accuracy and efficiency are improved through the mathematical model; 4. Through the mathematical model, the parameterization correlation between the pattern design and the action design is improved, and the corresponding action design is automatically generated as the pattern design changes, improving the intelligence of the design and making it more widely applicable; 5. The simpler and more intelligent design method of the present application facilitates traceability and detection of yarn path conflicts.

[0020] 6. The lapping number of the jacquard guide bar in the present application spans multiple gauges, and one yarn can connect more loop columns, providing better anti-spread effect; 7. The designed jacquard fabric has both mesh and non-mesh patterns, does not use a bottom comb, and has a light and thin feature; 8. The mesh formed by the four-course lapping design method of the jacquard guide bar is symmetrical up and down, can achieve the effect of pulling two courses of mesh, and different columns can form non-difference mesh; 9. The pattern design generated by the design method of the present application is consistent with the final appearance effect of the fabric, and the fabric product effect can be intuitively felt; 10. The action design is consistent with the action of each guide needle on the jacquard guide bar, and the control of the guide needle is clear at a glance, and the guide needle action can be easily checked when it goes wrong; 11. The design method of the present application can be easily integrated into a computer-aided design system for warp-knitted fabrics, and automatically generate action designs and assignment bias actions based on the pattern design. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of an initial design in an embodiment of the present application; Figure 2 is a schematic diagram of a pattern design in an embodiment of the present application; Figure 3 is a schematic diagram of a pattern design in an embodiment of the present application; Figure 2The third row of the pattern design from bottom to top is numbered. Figure 4 The pattern design of the present application Figure 3 after filling with blue and green Figure 5 The action design generated by the pattern design of the present application Figure 2 The action design generated by the pattern design of the present application Figure 6 The action design generated by the pattern design of the present application Figure 5 The action design generated by the pattern design of the present application Figure 7 The fabric simulation diagram of an embodiment of the present application Figure 8 The pattern design of an embodiment of the present application Figure 9 The pattern design of an embodiment of the present application Figure 8 The color filling diagram when the row is odd Figure 10 The pattern design of an embodiment of the present application Figure 8 The color filling diagram when the row is even DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Wherein, the same parts are indicated by the same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings of the present application specification, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the direction towards or away from a particular part. In addition, the terms "first", "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application specification, the meaning of "multiple" is two or more.

[0024] Embodiment one As Figures 1 to 6 shown, a design method of a four-cross-row warp-knitted bottomless jacquard fabric includes the following steps: S1 Configure basic parameters: The jacquard warp knitting machine includes a half-gauge jacquard guide bar; Setting the state of the jacquard guide as H and T: H means that the jacquard guide does not deviate from the original position, and T means that the jacquard guide deviates to the left by one needle pitch; Setting the number of padding code cycles to four horizontal lines and threading the yarn at the position specified by the padding code.

[0025] S2 generates a pattern design: using two colors, the pattern of the jacquard fabric is designed according to the pattern effect; S2 generates a pattern design: using two colors, the pattern of the jacquard fabric is designed according to the pattern effect; S3 generates a motion design: searching for continuous same-color design blocks in each row of the pattern design, and re-coloring the continuous same-color design blocks, if the number of continuous same-color design blocks is odd, the number of design blocks re-colored at a time is: (number of continuous same-color design blocks + 1) / 2 - 1. S3 generates a motion design: searching for continuous same-color design blocks in each row of the pattern design, and re-coloring the continuous same-color design blocks, if the number of continuous same-color design blocks is odd, the number of design blocks re-colored at a time is: (number of continuous same-color design blocks + 1) / 2 - 1. S4 assigns a deviation motion: combining the state of the jacquard guide, the method of color assignment is used to assign a deviation motion to each horizontal line of the jacquard guide. S4 assigns a deviation motion: combining the state of the jacquard guide, the method of color assignment is used to assign a deviation motion to each horizontal line of the jacquard guide.

[0026] In this embodiment, S1 configures the basic parameters: select a warp knitting machine model with two half-gauge jacquard bars, the jacquard bars are staggered, and the yarn is fully threaded. The state of the jacquard guide on the two jacquard bars is represented by H and T, H means that the jacquard guide does not deviate from the original position, and T means that the jacquard guide deviates to the left by one needle pitch. Set the padding code cycle to four horizontal lines.

[0027] The design method of the present application has a simple basic configuration and does not require a bottom comb, making the finished product light and thin.

[0028] S2 generates a pattern design: using two colors, the pattern of the jacquard fabric is designed according to the pattern effect; specifically, S21 fills the initial design: selecting red and white colors to fill the initial design as a checkerboard pattern; wherein the red design blocks are set as non-mesh, and the white design blocks are set as mesh, as shown in Figure 1 , wherein "■" represents red and "□" represents white, and the initial design is a checkerboard pattern.

[0029] Next, based on the initial design, the pattern of the jacquard fabric is designed according to the pattern effect, S22 jacquard fabric pattern design: replacing part of the white design blocks with red design blocks, and the continuous red design blocks form a single cycle pattern of the four horizontal line warp knitting non-bottom jacquard fabric, and the continuous red design blocks form a continuous non-mesh area, thereby achieving the desired jacquard effect. In one embodiment, taking the ear of wheat pattern shown in Figure 2 as an example, at this time, part of the "□" in the initial design is replaced by "■", and the continuous "■" design blocks form a single cycle pattern of the four horizontal line warp knitting non-bottom jacquard fabric.

[0030] The embodiment designs by grouping colors, only uses red and white color design pattern design, reduces the design amount, simplifies the design difficulty, improves the design efficiency, is not easy to make mistakes, and is convenient to modify. Figure 2 As shown in the figure, the design method of the application generates a pattern design that is consistent with the final appearance effect of the fabric, and the fabric product effect can be intuitively felt.

[0031] The action design is a key bridge connecting textile design and machine execution, which converts each pixel point in the design drawing into machine recognizable instructions and executable machine language. The pattern design formed by red and white colors, wherein the continuous "■" design grid constitutes a single cycle pattern of four horizontal column warp knitting without bottom jacquard fabric, executes S31 to retrieve the continuous red design grid of each row in the pattern design, finds the rightmost design grid and the leftmost design grid of each continuous red design grid group. The color replacement is started from left to right and right to left for the continuous red design grid group, executes S32 to fill blue from the second design grid to the right of the rightmost design grid to the left, continues to fill blue at an interval of one grid, and so on; S33 fills green from the first grid to the right of the leftmost design grid to the right, continues to fill green at an interval of one, and so on. If the number of continuous same-color design grids is odd, the number of filled blue design grids or green design grids is: (number of continuous red design grids + 1) / 2 - 1 grids.

[0032] In actual application, as shown in the figure, the wheat ear pattern is determined, and the number of continuous red design grids of each row is checked. As shown in the third row, Figure 2 the retrieval is performed on a group of continuous 7 red design grids, and the rightmost design grid and the leftmost design grid are determined, and blue and green are filled according to the above rules, wherein "▲" represents green and "●" represents blue. Figure 3

[0033] Blue filling replacement: fill blue from the second design grid to the right of the rightmost design grid to the left, continue to fill blue at an interval of one grid, and so on. It needs to be specially pointed out that if there are less than two grids to the right, the filling is continued to the left in a cycle, such as the sixth row numbered from bottom to top in Figure 2 the figure, there is only one grid to the right of the three continuous red design grids on the right side, so the leftmost design grid of the row is filled with blue.

[0034] Green filling replacement: fill green from the first grid to the right of the leftmost design grid to the right, continue to fill green at an interval of one, and so on; As shown in the figure, according to the rules, the third row should fill green at the seventh, ninth and eleventh grids from the left, and fill blue at the tenth, twelfth and fourteenth grids from the left, wherein "▲" represents green and "●" represents blue. Figure 4

[0035] ​​It should be noted that, due to the checkerboard effect of the initial design diagram, in most embodiments, the number of consecutive red design grids is an odd number, that is, (the number of consecutive red design grids + 1) / 2 – 1 is an integer.

[0036] In another embodiment, if a row of the flower pattern design is entirely red, that is, the number of consecutive red design squares is even, the following rules are followed to fill the color: Number each row in the flower pattern design to determine the odd and even rows. If this row is an odd row, define the first square from the left as both the leftmost and rightmost squares. According to S32, fill the color blue starting from the second square to the right of the rightmost square, continue to fill the color blue every other square, and so on. S33 starts from the first square to the right of the leftmost square and fill the color green starting from the first square to the right, continue to fill the color green every other square, and so on. That is, the first square is changed to blue, the second square is changed to green, and the colors are changed according to the rule of one blue and one green, and so on, until the entire row is replaced.

[0037] If this row is an even row, define the second square from the left as both the leftmost and rightmost squares. According to S32, fill the color blue starting from the second square to the right of the rightmost square, continue to fill the color blue every other square, and so on. S33 starts from the first square to the right of the leftmost square and fill the color green starting from the first square to the right, continue to fill the color green every other square, and so on. That is, the first square is changed to green, the second square is changed to blue, and the colors are changed according to the rule of one green and one blue, and so on, until the entire row is replaced.

[0038] like Figure 8 , there is a row of design squares in the flower pattern that are all red. In this case, the rule (number of consecutive red design squares + 1) / 2 – 1 is no longer applicable. Instead, we first determine whether the row is odd or even based on the row number. If the row is odd, Figure 9 , "▲" refers to green, "●" refers to blue, then the colors are changed according to the rule of one blue and one green, that is, the first design grid is changed to "●", the second design grid is changed to "▲", and so on, until the whole row is replaced; if this row is an even number of rows, such as Figure 10 , the colors are changed according to the rule of one green and one blue, that is, the first design grid is changed to "▲", the second design grid is changed to "●", and so on, until the whole row is replaced.

[0039] The action design of the action pattern in the embodiment is consistent with the action of each guide needle of the jacquard guide bar during work, and the control of the guide needle is clear at a glance. When the action of the guide needle is wrong, it is convenient to troubleshoot. Based on the red and white color pattern design, only the continuous red design grid needs to be replaced and filled with blue-green bright color, which further reduces the design amount, simplifies the design difficulty, improves the design efficiency, is not easy to make mistakes, and is convenient to modify. When the pattern design is converted into the action design, through the mathematical model of "(continuous same color design grid number + 1) / 2 - 1", the conversion accuracy and conversion efficiency are improved. And through the mathematical model, the parameterization correlation between the pattern design and the action design is improved. With the change of the pattern design, the corresponding action design is automatically generated, the intelligence of the design is improved, and the application scenarios are more extensive.

[0040] The design method of warp knitting jacquard fabric mainly depends on the guide needle offset of the jacquard guide bar to realize different pattern effects, so the next step is to design the action design according to the designed action design. As shown in Figure 6 , that is, based on Figure 5 Assigning an offset action to each course of the jacquard guide needle, executing S4 to assign an offset action, in the embodiment, one design grid represents one needle and two courses, the first course of the red design grid is assigned as H and the second course is assigned as T; The first course of the white design grid is assigned as T and the second course is assigned as H; The first course and the second course of the color design grid are both assigned as H; The first course and the second course of the blue design grid are both assigned as T. After the guide needle receives the offset signal, each grid of the loop is offset according to the need, so the process design of four-course warp knitting without bottom jacquard organization is completed.

[0041] In the embodiment, S3 generates the action design, and S4 assigns the offset action, which can be based on the designed pattern design, and automatically realized by the computer according to the above design steps. Each step can be traced back to detect yarn path conflicts, reduce design amount, simplify design difficulty, improve design efficiency, not easy to make mistakes, convenient to modify, improve the intelligence of the design, more extensive application scenarios, and easily integrated into the computer-aided design system of warp knitting fabric.

[0042] Embodiment two In actual application, the knitting is as shown in Figure 7The schematic fabric simulation diagram, S1 configures the basic parameters: select RSJ5 / 1 type warp knitting machine, determine the pattern width as 16 needles, the pattern height as 36 courses, and ensure that the number of courses in the longitudinal direction is a multiple of 4. Two half-gauge jacquard guide bars are JB1 and JB2, the setting of the yarn laying number of the jacquard guide bar JB1 is 1-0 / 2-3 / 3-4 / 2-1 / / , the setting of the yarn laying number of the jacquard guide bar JB2 is 3-4 / 2-1 / 1-0 / 2-3 / / , the jacquard guide needle state on the jacquard guide bar is H and T: H represents that the jacquard guide needle is in the original position without deviation, and T represents that the jacquard guide needle deviates to the left by one needle distance. After S2 generates the pattern design diagram and S3 generates the action design diagram, the yarn laying movement of each jacquard guide bar is as follows.

[0043] [JB1] 1=2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2=2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 3=2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 4=2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 5=2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 6=2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 7=2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 8=2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / [JB2] 1=3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 2=3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3=3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4=3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 5=3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 6=3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 7=3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 8=3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / 4-5 / 3-2 / 2-1 / 2-3 / 3-4 / 3-2 / 2-1 / 2-3 / The above yarn feeding code clearly shows the trajectory of the yarn, the yarn is overlapped in the pattern area to form a pattern, the yarn is crossed in the non-pattern area to form a mesh, and a clear level is formed in the actual fabric, a jacquard effect is produced, the pattern is clear, and the fabric is not easy to disperse.

[0044] In the embodiment, it is ensured that each needle is knitted with yarn loops in any course without repeated or missed loops, the problems of local collapse and yarn diffusion are solved, the pattern edge is clearer, and the fabric strength is significantly improved; the yarn feeding code of the jacquet guide bar crosses multiple gauges, one yarn can connect more loop columns, and the effect of preventing dispersion is better; the mesh formed by the four-course yarn feeding design method of the jacquet guide bar is symmetrical up and down, the effect of pulling two courses of mesh by two courses can be realized, and different columns can form a mesh without difference.

Claims

1. A design method for a four-row warp-knitted bottomless jacquard fabric: S1 configures basic parameters: The jacquard machine includes a half-gauge jacquard guide bar; Set the jacquard guide needle status on the jacquard bar to H and T: H means the jacquard guide needle does not shift at the original position, and T means the jacquard guide needle shifts one stitch length to the left; Set the inlay yarn digital cycle to four horizontal rows and thread the yarn at the position specified by the inlay yarn digital; S2 generates a flower pattern design: Use two colors to design the jacquard fabric pattern according to the pattern effect; S3 generates an action diagram: Search for consecutive same-color design squares in each row of the flower pattern design diagram and recolor them. If the number of consecutive same-color design squares is odd, the number of recolor squares in a single recolor is: (number of consecutive same-color design squares + 1) / 2 – 1; S4 assigns offset action: Combined with the jacquard yarn guide needle state, according to the color assignment method, an offset action is assigned to each horizontal row of the jacquard yarn guide needle.

2. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 1, characterized in that: S2 generates flower pattern designs including: S21 Fill the initial design: Select red and white colors to fill the initial design into a checkerboard pattern; S22 jacquard fabric pattern design: Part of the white design grid is replaced by red design grid, and the continuous red design grid constitutes a single cyclic pattern of the four-row warp-knitted bottomless jacquard fabric.

3. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 2, characterized in that: The red design grid is set to no mesh, and the white design grid is set to have mesh.

4. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 3, characterized in that: S3 generates an action diagram containing: S31 searches for consecutive red design grids in each row of the flower pattern design diagram, where the consecutive red design grids are an odd number, and finds the rightmost and leftmost design grids in each row of consecutive red design grids; S32 starts filling the blue grid from the second right square of the rightmost square, and continues filling the blue grid one square apart. S33 starts filling green from the first square to the right of the leftmost design square, and continues filling green every other square.

5. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 4, characterized in that: If the number of design grids to the right of the rightmost design grid in S32 is less than two, loop to the left to continue filling.

6. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 3, characterized in that: If the number of consecutive grids of the same color in the action design diagram generated by S3 is even, the color filling should follow the following rules: Number each row in the flower pattern design to determine the odd and even rows. If the row is odd-numbered, the colors will be changed in the order of one blue and one green. That is, the first design square will be changed to blue, the second design square will be changed to green, and so on, until the entire row is changed. If this row is an even number of rows, the colors will be changed according to the rule of one green and one blue, that is, the first design grid will be changed to green, the second design grid will be changed to blue, and so on, until the entire row is replaced.

7. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 5 or 6, characterized in that: The S4 assignment offset action includes: Set a design grid to represent one stitch and two rows The first row of the red design grid is assigned H and the second row is assigned T; The first row of the white design grid is assigned T and the second row is assigned H; The first and second rows of the green design grid are both assigned the value H; The first and second rows of the blue design grid are both assigned the value T.

8. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 1, characterized in that: The yarn guide needles of the jacquard bar are installed with a staggered position of 1 stitch length to fully thread the yarn.

9. The design method of the four-course warp-knitted bottomless jacquard fabric according to claim 1, characterized in that: There are two half-machine jacquard guide bars, namely JB1 and JB2. The digital settings of the inlay yarn of JB1 are 1-0 / 2-3 / 3-4 / 2-1 / / , and the digital settings of the inlay yarn of JB2 are 3-4 / 2-1 / 1-0 / 2-3 / / .

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