Method for improving color distortion of fabric image by superimposing napping

Abstract

The present application relates to the technical field of textile design, and particularly relates to a method for improving fabric image color distortion by superimposing and developing color of sanding, which comprises the following steps: (1) CMYK four-color yarn design; (2) jacquard CAD design; (3) weaving of grey fabric; (4) dyeing and finishing of the grey fabric; the dyeing and finishing of the grey fabric comprises sanding after light bleaching and fading treatment of the grey fabric. The present application adopts the design method of superimposing and developing color of color image fabric, the color developing mode of color mixing of jacquard CAD technology, and designs through the spinning form of colored weft yarn, jacquard CAD and dyeing and finishing, produces the effect of mutual color bleeding and color mixing of color materials of CMYK four-color yarn through fading treatment, and then carries out sanding treatment, so that the fine and dense fluff of the color yarn is superimposed with the effects of color transmission and improvement of complete covering, the color yarn is subjected to color transmission and superimposed color mixing again, the color is softer and more real by adopting the mode similar to the superimposition of four plates of CMYK color printing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile design, and particularly relates to a method for improving fabric image color distortion by superimposed color development of sanding. BACKGROUND

[0002] The color of yarn-dyed jacquard woven fabric is realized by dyeing warp and weft yarns and then interweaving the colored yarns. Yarn-dyed small jacquard fabric generally uses colored warp and weft yarns to develop color by floating and sinking, and cooperates with the change of the weave to make the simple pattern or lines clear. Yarn-dyed application is more widely used in the field of large jacquard, such as sand publishing, brocade, and landscape fabric decorative painting. Landscape fabric is the most typical representative of yarn-dyed large jacquard, and the colored landscape fabric generally uses multi-color weft yarns to develop color by floating and sinking and cooperates with the shadow light weave to form a colored landscape. The warp yarn color development of jacquard fabric has many restrictions, and there are problems such as difficulty in accurate arrangement of colored yarns in the processes of warping, sizing, and threading, and it is difficult to realize the beam change in the weaving process, and the threading operation is prone to errors. These problems are more prominent in large jacquard fabric, so most yarn-dyed large jacquards are weft yarn color development. However, the weft yarn color development is often limited by the current weaving conditions, and generally the weaving machines for large jacquard are two-color, four-color or six-color weft insertion, and it is not possible to set too many colors of weft yarns, and in actual production, the cost will increase with each additional color tone. In order to achieve a colorful picture effect, it is necessary to increase the actual fabric color and color level change, and it is necessary to fully utilize the weft yarns in the same mouth to develop color. The same mouth color development is to arrange two or more colored weft yarns to produce mixed colors, such as yellow and blue weft yarns to develop green color, so as to use limited weft yarn colors to represent as many color levels as possible under the condition of not increasing the number of boxes, and to realize the visual effect of rich and colorful. The color yarns mixed in the same mouth are non-mixed and non-superimposed, and as a kind of space color mixing, there is a significant difference in the color presented by mixing with color materials, but the CMYK image obtained by automatic separation by Photoshop or other types of color separation software is consistent with the color mixing mode of color materials, that is, the CMYK four images obtained by this method can be used as four plates for various media color printing, or as a signal basis for controlling the ink amount of the CMYK four ink cartridges on the fabric surface, but if it is used as a signal basis for the color development of the four plates of the colored landscape, there will be obvious deviations, including in hue, lightness, and saturation.

[0003] Patent CN1772989B proposes that the difference between computer color separation and combination color rendering and fabric non-overlapping color mixing principle leads to the deviation problem of reduction effect, analyzes that the gray scale deviation of black is serious, and proposes to replace the gray scale component twice to compensate the same gray scale reduction of C, M and Y layers for the non-color component of the image, so that the K layer is more saturated. This method adjusts the image processing, and according to the adjustment processing, the image color distortion is improved to a certain extent, and further research is needed to further refine the color in the existing image adjustment. SUMMARY

[0004] In view of the technical problem of fabric image color distortion, the present application provides a method for improving fabric image color distortion by using sanding superposition color rendering, which can alleviate the problem of fabric image color distortion and make the finished product color more soft and real.

[0005] The present application provides a method for improving fabric image color distortion by using sanding superposition color rendering, comprising the following steps:

[0006] (1) CMYK four-color yarn design; (2) CAD design; (3) weaving the gray fabric on the machine; (4) gray fabric dyeing and finishing process; the gray fabric dyeing and finishing process includes light bleaching and fading treatment of the gray fabric and sanding treatment.

[0007] Further, in step (1), the four-color yarns are one of pure cotton colored yarns, short fiber core-spun yarns, original liquid colored filament core-spun yarns or polyester filament core-spun yarns.

[0008] Further, in step (1), the CMYK four-color yarn design method is to establish four groups of full-color shadow organization library according to the design requirements of full-color technology points, and obtain CMYK four groups of BMP pictures through Photoshop channel separation.

[0009] Further, in step (1), the four-color yarn color rendering design is a weft color rendering method.

[0010] Further, in step (2), the CAD design method is to import the CMYK four groups of separated pictures into the CAD software in sequence, design sample card information, extract organization library, select color number and organization corresponding relationship, generate pattern information, add weft and edge organization function needles, and finally convert into JC5 pattern plate file that can be read by the electronic jacquard loom.

[0011] Further, the CAD software is top software.

[0012] Further, in step (3), the electronic jacquard loom is used to weave the gray fabric.

[0013] Further, the grey cloth is treated by light bleaching and fading process, the grey cloth is placed in the boiling and bleaching working solution for 30 min at 95 DEG C, the boiling and bleaching working solution is prepared according to the following concentration of components: hydrogen peroxide 5 g / L, hydrogen peroxide stabilizer 3 g / L, chelating stabilizer 2.5 g / L, sodium metasilicate pentahydrate 3.5 g / L, sodium carbonate 25 g / L.

[0014] Further, the grey cloth is treated by light bleaching and fading process, the grey cloth is placed in the boiling and bleaching working solution for 30 min at 95 DEG C, the boiling and bleaching working solution is prepared according to the following concentration of components: hydrogen peroxide 5 g / L, hydrogen peroxide stabilizer 3 g / L, chelating stabilizer 2.5 g / L, sodium metasilicate pentahydrate 3.5 g / L, sodium carbonate 25 g / L.

[0015] The principle of the present application is that the hue has the greatest influence on the appearance style of the fabric, which leads to the color appearance change of the fabric surface, i.e. the color deviation of the fabric surface. The change of the hue in the CMYK printing mode is transparent superposition, and since the yellow has the highest brightness, in the fabric color appearance mode, the general color of the four color yarns is earthy yellow due to the opacity caused by the arrangement of the color yarns, the large red shown by the yellow and magenta is orange, the medium green shown by the cyan and yellow is turquoise, and the yellow has the highest brightness and is the most obvious influence on the hue deviation, and the proportion of the yellow weft yarn is determined according to the CMYK printing mode, which often makes the actual fabric surface yellow. The most significant influence of the fabric surface caused by copying the CMYK printing mode to determine the proportion of the weft yarn is the black, the yellowish gray is shown on the fabric surface, and the color level of the region is the most blurred in the whole fabric surface. The second is the influence on the saturation after the color mixing, and the color saturation after the color mixing of the yarns arranged side by side is lower than the original color saturation. Since the yarns arranged side by side have the characteristics of opacity and non-superposition, from the overall effect, even if the dyed yarns with bright and high saturation are used, the fabric surface after interweaving still feels dull, and has a kind of opaque and not transparent feeling. Through the analysis of the common color of the hue and the saturation, the present application technology mainly uses the color superposition and mixing subtractive mode to relieve the problem of image color distortion, the spinning form of the colored weft yarn, the CAD design and the dyeing and finishing process are designed, the CMYK four color yarns are made to have the effect of color mixing and color bleeding through the fading treatment on the basis of the prior art, the fabric surface is treated by the sanding process, the CMYK four color yarns are made to have the effect of color mixing and color bleeding, and the fine and dense hair is made to have the effect of color mixing and color bleeding, the fabric surface with the color mixing and color bleeding of the color yarns is made to have the effect of color mixing and color bleeding again, which is similar to the four superposition modes of the CMYK color printing, so that the color is more soft and real.

[0016] The present application has the beneficial effect that the present application adopts the design method of color image fabric superposition color display, the color display mode of color weaving CAD technology common mouth mixing, designs through the spinning form of colored weft yarn, color weaving CAD and dyeing and finishing processing, makes the CMYK four color yarns produce mutual color bleeding and color bleeding color mixing effect through color fading treatment, then carries out sanding treatment, makes the color yarn fine and dense hair superposition have the effect of color transmission and improvement of complete covering, carries out color transmission superposition color mixing again to the color yarn common mouth mixing, adopts the mode similar to the four edition superposition of CMYK color printing, makes the color more soft and real. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, below the drawings needed to be used in the embodiment or prior art description will be briefly introduced, obviously, for those skilled in the art, without creative labor, other drawings can also be obtained according to these drawings.

[0018] Figure 1 It is the fabric contrast chart before and after the present application is superimposed and treated by sanding. DETAILED DESCRIPTION

[0019] In order to make the person in the art better understand the technical solutions in the present application, below will combine the drawings in the embodiment of the present application, the technical solutions in the embodiment of the present application will be clearly and completely described, obviously, the described embodiment is only a part of the embodiment of the present application, not all the embodiments. Based on the embodiment in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0020] Embodiment 1

[0021] A method for improving fabric image color distortion by sanding superimposed color display, comprising the following steps:

[0022] (1) According to the comprehensive cost of production on machine and the production mode easy to operate, the present embodiment adopts the weft yarn color display mode, the weft yarn is first dyed with T100s package CM60s yarns of cyan, magenta, yellow and black color yarns, and the fabric on machine specification is designed as: width 118 inches, warp density 173 roots / inch, weft density 200 roots / inch.

[0023] (2) Select a color image for design, according to the design density requirements for vertical adjustment for 5040 pixels, horizontal adjustment for 4080 pixels. According to the full color technology point design requirements, select 16 satin as the basis to establish four groups of full color shadow organization library; the selected image is adjusted by Photoshop in terms of color saturation, brightness, contrast, edge sharpening, etc. and CMYK four groups of BMP pictures are obtained through channel separation.

[0024] (3) Through the top software, according to the design steps, the CMYK four groups of pictures after separation are imported into the top design software in turn, the design sample information is set, the organization library is extracted, the color number and organization corresponding relationship is selected, the pattern plate information is generated, the weft insertion and edge organization function needles are added, and finally converted into JC5 pattern plate file which can be read by the jacquard machine.

[0025] (4) Using Staubli electronic jacquard loom for weaving production, using pure cotton 60s warp beam, copying JC5 file to jacquard machine computer, introducing cyan T100s package 60s, magenta T100s package 60s, yellow T100s package 60s, black T100s package 60s on 1-4# weft accumulator at one time, adjusting the process parameters of the loom to ensure good running state, and obtaining the gray fabric which is adjusted into the dyeing factory after repairing and inspecting.

[0026] (5) Dyeing and finishing process: cloth turning → singeing → desizing and bleaching → pad dyeing → drying → sanding → finishing, stretching, setting and softening → preshrinking → finished product.

[0027] 1) Singeing process: low temperature rapid singeing, mode using one positive and one negative, speed 100 m / min, air pressure 16 MPa.

[0028] 2) Desizing process: multifunctional refining agent CPO 3g / L, desizing enzyme OT-1 6.25g / L, temperature 85℃, time 30min, clean water washing.

[0029] 3) Cooking and bleaching process: cooking and bleaching working solution is 100% hydrogen peroxide 5g / L, hydrogen peroxide stabilizer HOC 3g / L, chelating stabilizer MEX-C 2.5g / L, sodium metasilicate pentahydrate Na2SiO3 3.5g / L, sodium carbonate Na2CO3 25g / L, under the condition of temperature 95℃ for 60min, after cooking and bleaching, drain and clean water washing; at this time, mutual staining and color shadow occur between cyan, magenta, yellow and black yarns, and the color mixing of the fabric is mixed.

[0030] 4) Drying: through pad dyeing and washing to adjust the pH value of the cloth surface to 5-7, and carry out cylinder drying.

[0031] 5) sanding: carbon sanding, sanding tension 23kg, sanding speed 20m / min, 15g / L of raising softener FZM-20 is added during sanding.

[0032] 6) finishing, tentering and softening: hydrophilic block silicone oil stock solution BKR-620W 9g / L, softener NV-512 35g / L, INVATEX AC 1g / L, softening tentering is carried out by using a tentering machine at a temperature of 145℃ and a speed of 60m / min.

[0033] 7) pre-shrinking: the speed of the pre-shrinking machine is 60m / min, and the pre-shrinking temperature is 160℃, and finally the finished fabric is obtained.

[0034] Figure 1 The fabric contrast chart before and after the sanding and color development superposition treatment according to the present application is shown. In the chart, A is the chart before the treatment, and B is the chart after the treatment. It can be seen that the colored yarn after the treatment according to the present application has the color bleeding and dyeing effect, and the color is more real and soft.

[0035] Although the present application has been described in detail by referring to preferred embodiments thereof, it is to be understood that the present application is not limited to these preferred embodiments. Rather, it can be embodied in various ways, and should not be limited to the embodiments set forth above. Any modifications or replacements that are made by those skilled in the art based on the technical concept disclosed in the present application shall fall within the scope of the present application. Any modifications or replacements that are made by those skilled in the art based on the technical concept disclosed in the present application shall fall within the scope of the present application.

Claims

1. A method of improving color distortion of a fabric image by using a napped superimposed color development, characterized in that, It comprises the following steps: (1) CMYK four-color yarn design; (2) CAD design; (3) weaving of the grey fabric; (4) dyeing and finishing of the grey fabric; the dyeing and finishing of the grey fabric comprises light bleaching and fading treatment of the grey fabric, and then carrying out sanding treatment; In step (1), the CMYK four-color yarn design method is that, according to the design requirements of full-color technology points, four groups of full-color shadow organizations are established, and CMYK four groups of BMP pictures are obtained by channel separation of Photoshop; In step (2), the CAD design method is that, through the CAD software, the CMYK four groups of separated pictures are imported into the CAD software in sequence, sample card information is designed, organization library is extracted, color number and organization corresponding relationship is selected, and JC5 pattern plate file which can be read by the jacquard machine is finally generated by adding weft insertion and edge organization functions; The process of light bleaching and fading treatment of the grey fabric is that, the grey fabric is placed in the boiling and bleaching working solution at a temperature of 95℃ for 30 minutes, and the boiling and bleaching working solution is prepared according to the following concentrations: hydrogen peroxide 5g / L, hydrogen peroxide stabilizer 3g / L, chelating stabilizer 2.5g / L, sodium metasilicate pentahydrate 3.5g / L, and sodium carbonate 25g / L; The design method of superimposed color of the colored image fabric, the color mixing method of the CAD technology, the design through the colored weft yarn spinning form, the CAD and the dyeing and finishing, the mutual color mixing and the color mixing effect of the CMYK four-color yarn through the fading treatment, and the sanding treatment to make the color yarn fine hair superimposed with the color transmission and the improved complete covering effect, the color yarn color mixing again for color transmission superimposed color mixing.

2. The method of claim 1, wherein the image color distortion of the brushed superimposed color development fabric is improved by, In step (1), the four-color yarns are one of pure cotton colored yarns, short fiber core-spun yarns, original liquid colored filament core-spun yarns or polyester filament core-spun yarns.

3. The method of claim 1, wherein the image color distortion of the brushed superimposed color development fabric is improved by, In step (1), the four-color yarn color design is the weft yarn color design.

4. The method of claim 1, wherein the image color distortion of the brushed superimposed color development fabric is improved by, The CAD software is the top software.

5. The method of claim 1, wherein the image color distortion of the brushed supercolor improvement fabric is improved by the method, characterized in that, In step (3), the electronic jacquard machine is used to weave the grey fabric.

6. The method of claim 1, wherein the image color distortion of the brushed overlay color development improvement fabric is improved by, The sanding process of the grey fabric is that, the carbon sanding is used, the sanding tension is 23kg, the sanding speed is 20m / min, and the softener with a concentration of 15g / L is added during sanding.

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