CN114561733B - Design method of colored jacquard fabric based on graphic combination expression - Google Patents

Abstract

The invention provides a method for designing a colored jacquard fabric by adopting different combinations of simple graphs to express colors of digital images and decorative patterns, which is characterized in that a multi-level graph library with different shapes is designed according to the shape generation process of the graphs and the incremental change of the length and the width of the graphs in the process, then the colors of the digital images and the decorative patterns are replaced by the multi-level graph library, and the combined design of a small amount of fabric tissues is applied on the basis of a reorganization structure, so that the jacquard fabric has the color change level for expressing the complicated digital images and the colorful decorative patterns, and the simple patterns are endowed with the graph textures with different shapes and sizes. The main technical scheme comprises: (1) designing a digital pattern; (2) designing a graphic library; (3) replacing the pattern color and the graphic library; (4) designing the specification and the weave structure of the fabric; and (5) making a pattern file. The invention has the technical characteristics that firstly, feasibility is provided for repeated redesign of patterns for jacquard fabric design, and secondly, a pattern change mode is provided for expression of pattern colors instead of completely depending on fabric tissues, so that technical support is provided for improving artistic expression and design added value of the color jacquard fabric in the aspects of pattern and color effects.

Description

Design method of colored jacquard fabric based on graphic combination expression

Technical Field

The invention relates to a method for designing jacquard fabric interwoven by warps and wefts, in particular to a method for designing and manufacturing colored jacquard fabric by adopting a plurality of gradient pattern libraries with different shapes and a plurality of length-width multiplication pattern libraries thereof and combining and expressing complex digital images and colorful decorative patterns in different modes.

Background

At present, jacquard fabrics are usually woven by firstly designing patterns and color matching thereof, then carrying out fabric weave design according to the number of the colors of the patterns, then laying the fabric weave into the corresponding pattern colors to form a fabric weave diagram, and then entering the subsequent process links. The fabric weave is not considered in the pattern design stage, the problem of pattern is not treated in the fabric weave configuration stage, and the pattern design and the fabric weave process are two relatively independent design links. Secondly, the appearance of the decorative patterns of the fabric is completely dependent on the fabric texture, and the texture design and application of the jacquard fabric are limited to the simulation of the patterns and the color matching effect thereof in most cases. Although the conventional weave can make the jacquard weave have certain texture effects besides the appearance of the shape and color of the pre-designed pattern, for example, the twill weave can make the weave generate uniform and regular oblique textures, even for example, the through hole weave, the honeycomb weave, the mesh weave and the raised line weave can make the weave obtain more prominent tactile textures, the conventional weave is only one texture and cannot generate new figure effects with shapes. According to the jacquard fabric design method provided by the invention, the two process links of pattern design and fabric weave design are communicated, so that on one hand, the drawing of an initial pattern can be simplified, and the pattern design efficiency is improved; on the other hand, a way and a method are provided for secondary redesign of the initial pattern, which is beneficial to the innovation of the change of the pattern of the jacquard fabric. In addition, the method can reduce the dependence of the fabric pattern on the conventional fabric texture, and can select a gradient graphic library besides the fabric texture when converting the pattern design draft into the fabric texture structure chart. To date, no document adopts pattern gradient to design and manufacture jacquard fabrics.

Disclosure of Invention

The invention aims to adopt a gradual change pattern library to carry out the innovative design of jacquard fabric on the effects of ornamentation and color, and provides a method for designing digital jacquard fabric with various different pattern textures and color changes. The invention forms a series of graphic libraries with gradient composition relation by performing variable design on simple graphics with simple modeling, performs graphic size increasing and amplifying design on the gradient graphic libraries with various different shapes according to times, and performs combined application in different modes to ensure that the graphic libraries redesign patterns for many times, and generates design functions similar to fabric organization while expressing fine and smooth variation effects of the colors of the patterns by using the gradient graphic libraries. In addition, for the patterns which finish the pattern conversion design, a heavy weave structure is adopted to match with a plurality of groups of colored yarns for fabric design, so that the jacquard fabric which takes the combination expression of the gradually-changed patterns as the main characteristic is obtained, and the reference on the design method is provided for the color expression of the digital jacquard fabric and the diversified design of the pattern texture.

The implementation method and the main technical content of the invention are as follows:

(1) Digital pattern design

(1) Carrying out layered design on the digital pattern, and setting the width and length pixel values of the digital pattern according to the required fabric pattern size and the actual warp density production condition;

(2) at least two layers of patterns are designed and generated, and each pattern layer is independently stored.

(2) Graphic library design

(1) Designing a primary graph library to enable each graph library to carry out gradient design according to a graph with a specific shape, wherein the length and the width of all gradient graphs in the same graph library are the same, and the length and the width of all gradient graphs are required to be equal, namely the gradient graphs are a square, the value range of the length and the width of each gradient pixel is 14-20 pixels, and the number of the graphs in the graph library is S = m ² /2+m-1；

(2) And (3) carrying out amplification design on the length and width sizes of the graphs of the designed primary graph library, wherein the amplification factor is 2-5 times, and establishing a 2-level to 5-level graph library classified according to the shapes and the amplification factors of the graphs.

(3) Process for replacing pattern color and graphic library

(1) Performing primary color separation on a pattern layer (N1) with rich color quantity and subtle change by adopting an RGB color mode or a CMYK color mode to form 3-7 primary color images, selecting 2-4 primary color images and a gradient pattern library for replacement design according to the design concept requirement, wherein each primary color image is respectively replaced with the gradient pattern library with one shape, and replacing the primary color images and the patterns in the gradient pattern library one by one according to the sequence of brightness values of all colors in the primary color images to form a pattern formed by pattern gradient, and finishing the replacement treatment of all the selected primary color images one by adopting the same method;

(2) re-coloring the 2-4 image patterns subjected to replacement treatment to ensure that the image colors of each image pattern are different, simultaneously reserving the background color of one image pattern, removing the background color of the rest images, then combining the 2-4 image patterns with different gradient shapes and different image colors by adopting a positive plate bottom-overlapping mode to obtain an image pattern (F1) with 3-7 image patterns and 1 background color;

(3) selecting proper figures from a 2-5 level figure library with different shapes, carrying out replacement design on the figures and a figure layer (N2) with limited number of colors, wherein the number of the selected figures is the same as the number of the colors of the figure colors, each figure color has one figure with different shape or different magnification factor for replacement design, each figure color is converted into figure textures which are regularly and repeatedly arranged by different figures, and then re-coloring the figure colors of the figure textures generated by replacement and the background colors thereof to ensure that the figure colors of the figures representing each original figure color are different from the background colors thereof (F2);

(4) and summarizing the pattern layers (F1 and F2) which are respectively subjected to pattern replacement design and re-coloring, and then summarizing the pattern colors, wherein the color number of the F1 pattern layer is summarized according to the number of warp and weft yarn sets, the total number of the colors is not more than 5, the colors of the F2 pattern layer are summarized according to the design concept, or the colors of the two pattern layers summarized can be not summarized, and the two pattern layers subjected to color summarization are overlapped and combined up and down to form a comprehensive pattern (Z).

(4) Fabric gauge and weave design

(1) Carrying out warp and weft density, warp and weft combination, warp arrangement and weft insertion information design on the comprehensive pattern sample picture (Z) obtained in the step (3);

(2) laying float-length textures capable of showing corresponding yarns for 2-4 pattern colors of an F1 pattern layer part in a comprehensive pattern drawing (Z), laying a warp-side texture or weft-side texture capable of showing required yarn colors for 1 background color, and fixedly connecting all non-colored yarns on the back of the fabric by using backing textures;

(3) laying a fabric tissue capable of showing required yarn colors as a surface tissue one by one for the graphic color and the background color of an F2 pattern layer part in the comprehensive graphic pattern (Z), and simultaneously consolidating the yarns which do not show colors by a backing tissue to ensure that the yarns are interwoven on the back of the fabric;

(4) and (4) forming a fabric weave structure diagram after finishing laying the pattern colors of all the pattern layers of the comprehensive pattern (Z) and the fabric weaves of the background colors of the pattern layers.

(5) Making of pattern file

And (4) finally obtaining a fabric organizational chart, designing a sample card, generating a pattern file for weaving on a machine, and obtaining the colored jacquard fabric which expresses the digital pattern colors and the variation levels thereof by combining various patterns.

Drawings

The invention is further illustrated below with reference to the accompanying drawings and examples:

FIG. 1 is a schematic flow chart of a color jacquard design based on graphic combination representation;

FIG. 2 is a schematic view of a digital pattern layer 1;

FIG. 3 is a schematic view of a digital pattern layer 2;

FIG. 4 is a schematic diagram of a process for fading a shoe-shaped library of graphics;

FIG. 5 shows an effect diagram (partial) after the color separation of the digital pattern layer 1 in CMYK color mode, wherein the primary color diagram M is replaced with a crescent graphic library;

fig. 6 shows a multi-color combined pattern (part) generated after 2 times of combination after the digital pattern layer 1 and the digital pattern layer 2 are designed by the pattern library replacement;

FIG. 7 is a multi-color composite graphic (partial) after a deliberate color induction;

FIG. 8 is a development view of the weave of the fabric

FIG. 9 sample scan of a fabric (partial)

Detailed Description

The following describes the method of the present invention with reference to the drawings and examples.

1. Taking a color tetragonal continuous pattern formed by two pattern layers as an object, and designing a color jacquard fabric based on pattern combination expression, wherein the width and the length of the two pattern layers are the same, specifically, the width is 6000 pixels, the length is 6538 pixels, a digital pattern layer 1 is shown in a figure 2, and a digital pattern layer 2 is shown in a figure 3;

2. designing a primary graphic library, wherein the length and width pixel values of graphic units are all 20 pixels, drawing the modeling outline of the graphic in the center of the graphic unit, and then carrying out graphic gradual change process design according to the outline characteristics, wherein the design example applies four different graphics, namely a gold ingot shape, a crescent moon shape, a concentric circle and a copper coin shape, the graphic library of each shape comprises 219 gradual change graphics, and part of gradual change effects of the gold ingot shape graphic library are shown in figure 4;

3. designing a graphic library amplified according to the multiple, amplifying the graphic libraries in four different shapes according to the multiple, and establishing a 2-5-level graphic library amplified according to 2-5 times;

4. carrying out graphic conversion processing on the digital pattern layer 1, firstly, carrying out primary color separation by adopting a CMYK color mode to generate four primary color images, selecting two primary color images of cyan (C) and magenta (M) according to design requirements, and selecting two primary graphic libraries of crescent and concentric circles respectively, wherein the primary color image C and the crescent primary graphic library are subjected to replacement design, the partial effect of the finished graphic pattern is shown in figure 5, after the two primary color images are replaced, re-coloring the replaced graphic pattern, removing the background color of one graphic pattern, leaving the background color of the other graphic pattern, and carrying out positive piece bottom-overlapping combination on the two graphic patterns to obtain a graphic pattern containing 3 graphic colors and 1 background color;

5. carrying out graph conversion processing on the digital pattern layer 2, wherein the pattern layer 2 has 8 pattern colors, 1 contour line is drawn out, the rest 7 pattern colors respectively select one graph from 2-level graph libraries with four shapes, then respectively select one graph from a crescent 3-level graph library, a copper coin 4-level graph library and a concentric circular 5-level graph library, 7 graphs and 7 pattern colors are subjected to one-to-one corresponding replacement processing, and the graph textures obtained after replacement are subjected to coloring processing, so that each graph texture has 1 graph color and 1 background color, the 7 pattern colors are subjected to graph replacement and re-coloring, 14 artistic colors are generated in total, and the local effect of the finished pattern is shown in figure 6;

6. the digital pattern layer 1 which finishes the pattern replacement and color giving processing and the front lamination bottom combination and the digital pattern layer 2 which finishes the pattern replacement and color giving processing are combined in an up-and-down overlapping way to form a pattern picture which is expressed by the multi-color pattern combination, the pattern colors can be summarized at this stage, 15 artistic colors (including 1 pattern edge-drawing artistic colors) generated by the digital pattern layer 2 are summarized into 6 artistic colors in the example, 1 artistic color belonging to the digital pattern layer 1 and 1 artistic color belonging to the digital pattern layer 2 are combined into 1 same artistic color, so that a designed relation and a designed response are established between two layers of patterns, and the final multi-color pattern combined picture after the artistic color summarization has 9 artistic colors, and the local effect of the pattern picture is shown in figure 7;

7. adopting a group of white warps and two groups of colored wefts (yellow and black) to design a jacquard fabric, and setting the warp and weft density and weft inserting information of the fabric;

8. designing 9 fabric weave structures according to the final artistic designing color number of the pattern drawing, as shown in figure 8, wherein 4 of No. 2, no. 4, no. 5 and No. 8 are used for the digital pattern drawing layer 1, 6 of No. 1, no. 3, no. 5, no. 6, no. 7 and No. 9 are used for the digital pattern drawing layer 2, the fabric weave shared by the two pattern drawing layers is No. 5, and obtaining a fabric weave structure diagram after finishing laying all artistic designing color fabric weaves;

9. continuing to complete the design of the sample card of the fabric, generating a pattern file, and finally weaving on a machine to obtain the colored jacquard fabric which adopts the pattern combination to express the pattern colors and the change levels thereof, wherein the physical effect of the fabric sample is shown in figure 9;

the above-described embodiments are intended to illustrate and describe the present invention, not to limit the present invention, and any modifications and changes may be made to the present invention within the spirit of the present invention and the scope of the claims.

Claims (1)

1. A design method of colored jacquard fabric based on graphic combination expression is characterized in that a multilevel graphic library with different shapes is designed according to the shape generation process of a graphic and the incremental change of the length and width of the graphic in the process, then the multilevel graphic library is used for replacing the colors of a digital image and a decorative pattern, and the combination design of a small amount of fabric tissue is applied on the basis of a reorganization structure, so that the jacquard fabric has the color change level for expressing complex digital images and colorful decorative patterns, and the pure pattern color is endowed with graphic textures with different shapes and sizes, and the design method comprises the following steps: the method comprises the following steps of (1) designing a digital pattern, (2) designing a pattern library, (3) replacing a pattern color and the pattern library, (4) designing a fabric specification and an organization structure, and (5) manufacturing a pattern file, wherein:

(1) Digital pattern design

(1) The digital pattern is designed in layers, the length and width pixel values of the digital pattern are set according to the required fabric pattern size and the actual warp density production condition,

(2) designing and generating at least two layers of patterns, and storing each pattern layer independently;

(2) Graphic library design

(1) Designing a primary graph library to make each graph library perform gradient design according to a graph with a specific shape, wherein the length and the width of all gradient graphs in the same graph library are the same, and the length and the width of all gradient graphs are required to be equal, namely, the gradient graphs are a square, the value range of the length and the width of each pixel is 14-20 pixels, and the number of the graphs in the graph library is S = m ² /2+m-1，

(2) Carrying out amplification design of the length and width of the graph on the designed primary graph library, wherein the amplification factor is 2-5 times, and establishing a 2-level to 5-level graph library classified according to the shape and the amplification factor of the graph;

(3) Process for replacing pattern color and graphic library

(1) Performing primary color separation on a pattern layer (N1) with rich color quantity and subtle change by adopting an RGB color mode or a CMYK color mode to form 3-7 primary color images, selecting 2-4 primary color images and a gradient pattern library for replacement design according to the design concept requirement, wherein each primary color image is respectively replaced with the gradient pattern library with one shape, and replacing the primary color images and the patterns in the gradient pattern library one by one according to the sequence of brightness values of all colors in the primary color images to form a pattern formed by pattern gradient, and finishing the replacement treatment of all the selected primary color images one by adopting the same method;

(2) re-coloring the 2-4 pattern samples to make the pattern colors of each pattern sample different, keeping the background color of one pattern sample, removing the rest background colors, combining the 2-4 pattern samples in positive plate bottom-overlapping mode to obtain a pattern sample F1 with 3-7 pattern colors and 1 background color,

(3) selecting proper figures from a 2-5 level figure library with different shapes, carrying out replacement design on the figures and a pattern layer (N2) with limited number of colors, wherein the number of the selected figures is the same as the number of the colors of the pattern layer, each pattern color is subjected to replacement design on one figure with different shape or different magnification, each pattern color is converted into a figure texture, then re-coloring the figure color of the figure texture generated by replacement and the background color thereof, and the figure color of each figure texture is different from the background color thereof to form a figure texture F2,

(4) respectively summarizing the pattern layers F1 and F2 which are respectively subjected to pattern replacement design and re-coloring, and then summarizing the pattern colors, wherein the color number of the F1 pattern layer is summarized according to the number of warp and weft yarn sets, the total color number is not more than 5 colors, the colors of the F2 pattern layer are summarized according to the design concept, or not summarized, and the two layers of pattern samples summarized by colors are overlapped and combined up and down to form a comprehensive pattern (Z);

(4) Fabric gauge and weave design

(1) Carrying out warp and weft density, warp and weft combination, warp arrangement and weft insertion information design on the comprehensive pattern sample chart (Z) obtained in the step (3),

(2) laying float-length weave capable of showing corresponding yarns for 2-4 pattern colors of an F1 pattern layer part in a comprehensive pattern (Z), laying warp-side weave or weft-side weave capable of showing required yarn colors for 1 background color, fixedly connecting all non-colored yarns on the back of the fabric by using a backing weave,

(3) laying a fabric weave capable of showing required yarn colors as a surface weave for the pattern color of an F2 pattern layer part in the comprehensive pattern (Z) and the background color thereof, simultaneously consolidating non-colored yarns by a backing weave to interweave the yarns on the back of the fabric,

(4) after finishing laying the pattern colors of all pattern layers of the comprehensive pattern (Z) and the fabric textures with background colors, forming a fabric texture structure chart;

(5) Making of pattern file

And (4) finally obtaining a fabric organizational chart, designing a sample card, generating a pattern file for weaving on a machine, and obtaining the colored jacquard fabric which expresses the digital pattern colors and the variation levels thereof by combining various patterns.

Images