CN114561733A - 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 structure of the fabric; (5) 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 expression of the decorative patterns of the fabric is completely dependent on the fabric texture, and the texture design and application of jacquard fabrics are limited to the simulation of the patterns and the color matching effect thereof in most cases. Although the conventional fabric weave can not only meet the expression of the shape and the color of the pre-designed pattern, but also enable the jacquard fabric to have certain texture effect, for example, a twill weave is adopted, the fabric can generate uniform and regular oblique textures, even through holes, honeycombs, meshes and raised strips, the fabric can obtain more prominent tactile textures, but the conventional fabric weave still only has one texture and cannot generate a new graphical effect with the shape. 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 organization, and can lead the gradual change graphic library to be selected besides the way of the fabric organization when converting the pattern design drawing into the fabric organization chart. To date, no document adopts pattern gradual change 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 gradually changing composition relationship by changing and designing simple graphics with simple shapes, implements graphic size increasing and enlarging design on the gradually changing graphic libraries with various shapes according to times, and then performs combined application in different modes, so that the graphic libraries perform repeated design on the patterns, and generates design functions similar to fabric organization while expressing fine and smooth change effects of the colors of the patterns by the gradually changing 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

Firstly, carrying out layered design on a 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;

and designing to generate at least two layers of pattern samples, and independently storing each pattern sample layer.

(2) Graphic library design

Designing a primary graph library to make each graph library perform gradient design according to a graph with a specific shape, wherein all gradient graphs in the same graph library have the same length and width dimensions and require the length and width pixel values (m) to be equal, namely, the gradient graphs are a square, the value range of the length and width pixel values is 14-20 pixels, and the number of the graphs in the graph library is S-m²/2+m-1；

Secondly, amplifying the designed primary graphic library for graphic length and width, wherein the amplification factor is 2-5 times, and establishing a 2-level to 5-level graphic library classified according to graphic shape and amplification factor.

(3) Process for replacing pattern color and graphic library

Carrying out primary color separation on a pattern layer (N1) with abundant and subtle color quantity 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 image library for replacement design according to the design concept requirement, wherein each primary color image is respectively replaced with the gradient image library with one shape, and replacing the primary color images and the images in the gradient image library one by one according to the sequence of the brightness values of all the colors in the primary color images during replacement to form a pattern formed by one image gradient, and finishing the replacement treatment of all the selected primary color images one by adopting the same method;

second, re-coloring 2-4 image patterns after replacement treatment to make the image colors of each image pattern different, and simultaneously keeping the background color of one image pattern, removing the background color, 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 with 3-7 pattern colors and 1 background color (F1);

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 color quantity, wherein the number of the selected figures is the same as the color quantity of the figure colors, and each figure color has one figure with different shape or different magnification factor for replacement design, so that 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 figure textures representing each original figure color are different from the background colors thereof (F2);

and fourthly, respectively summarizing the pattern layers (F1 and F2) which are respectively subjected to pattern replacement design and color reapplication, and then respectively summarizing the pattern colors, wherein the number of the colors of the F1 pattern layer is summarized according to the number of the 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 which are summarized are overlapped and combined up and down to form a comprehensive pattern (Z).

(4) Fabric gauge and weave design

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

laying 2-4 pattern colors of an F1 pattern layer part in the comprehensive pattern drawing (Z) to form floating long tissues capable of showing corresponding yarns one by one, laying a warp surface tissue or weft surface tissue capable of showing required yarn colors for 1 background color, and fixedly connecting all non-colored yarns on the back surface of the fabric by using backing tissues;

thirdly, laying a fabric tissue capable of showing required yarn colors as a surface tissue for the pattern color and the background color of the F2 pattern layer part in the comprehensive pattern drawing (Z), and simultaneously consolidating the yarns which do not show colors by using a backing tissue to enable the yarns to be interwoven on the back of the fabric;

and fourthly, 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 with the background colors.

(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 (local part) generated after 2 times of combination after the digital pattern layer 1 and the digital pattern layer 2 are designed by replacing the pattern library;

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

FIG. 89 is a development view of a fabric structure

FIG. 9 sample object scanning of 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, designing a color jacquard fabric based on pattern combination expression, wherein the width and the length of the two pattern layers are the same, the specific width is 6000 pixels, the specific length is 6538 pixels, the digital pattern layer 1 is shown in figure 2, and the digital pattern layer 2 is shown in 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 designing the graphic gradual change process 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, each graphic library in the shape comprises 219 gradual change graphics, and partial gradual change effects of the gold ingot-shaped 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 primary graphic library of crescent 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 completes the pattern replacement and color rendering processing and is combined with the digital pattern layer 2 which completes the pattern replacement and color rendering processing is combined in an up-and-down overlapping way to form a pattern picture which is expressed by the combination of the multicolor patterns, the pattern colors can be summarized at the 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, the 1 artistic colors belonging to the digital pattern layer 1 and the 1 artistic colors belonging to the digital pattern layer 2 are combined into 1 same artistic colors, so that a relation and a response on design are established between the two layers of patterns, the final multicolor 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: (1) digital pattern design, (2) graphic library design, (3) replacement processing of pattern color and graphic library, (4) design of fabric specification and organization structure, and (5) making of pattern file, wherein:

(1) digital pattern design

Firstly, the digital pattern is designed in a layered way, the length and the width pixel values of the digital pattern are set according to the required fabric pattern size and the actual warp density production condition,

designing to generate at least two layers of pattern, and storing each pattern layer independently;

(2) graphic library design

Designing a primary graph library to make each graph library perform gradient design according to a graph with a specific shape, wherein all gradient graphs in the same graph library have the same length and width, and the length and width pixel values (m) of the gradient graphs are required to be equal, namely the gradient graphs are a square, the value range of the length and width pixel values is 14-20 pixels, and the number of the graphs in the graph library is S (m) m²/2+m-1，

Secondly, 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

Firstly, separating primary colors of a pattern layer (N1) with abundant colors and subtle changes 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 graphic library for replacement design according to the design conception requirement, wherein each primary color image is respectively replaced with the gradient graphic library with a shape, and replacing the primary color images and the graphics in the gradient graphic library one by one according to the sequence of brightness values of all colors in the primary color images to form a graphic pattern formed by graphic gradient, and finishing the replacement treatment of all the selected primary color images one by adopting the same method:

secondly, re-coloring 2-4 patterns of the replaced patterns to ensure that the patterns of each pattern have different colors, keeping the background color of one pattern, removing the rest background colors, combining the 2-4 patterns of patterns by adopting a positive plate bottom-folding mode to obtain a pattern with 3-7 patterns and 1 background color (F1),

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

fourthly, respectively summarizing the pattern layers (F1 and F2) which are respectively subjected to pattern replacement design and color reappearance, and then respectively summarizing the pattern colors, wherein the number of the colors of the F1 pattern layer is summarized according to the number of the warp and weft yarn groups, 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 are not summarized, and the two layers of pattern samples summarized by the colors are overlapped and combined up and down to form a comprehensive pattern drawing (Z);

(4) fabric gauge and weave design

Firstly, 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),

laying 2-4 pattern colors of F1 pattern layer part in the integrated pattern (Z) to form floating long weave of corresponding yarn, laying 1 background color to form warp or weft weave of required yarn color, fixing all non-developed floating long weave and 1 background color to form warp or weft weave of required yarn color, fixing all non-developed yarn on the back of fabric with backing weave,

thirdly, laying a fabric tissue capable of showing required yarn colors as a surface tissue for the graphic colors and the background colors of the F2 pattern layer part in the comprehensive graphic pattern drawing (Z), simultaneously consolidating the yarns which do not show colors by a backing tissue to interweave the yarns on the back of the fabric,

fourthly, 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 with the background colors;

(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.

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