one. The relationship between color separation and printed fabrics
The standard for checking the quality of printed color paper is to see if it meets the requirements of the entire printing process and prints high-quality products. Under the premise of fully understanding the manuscript spirit and correctly representing the color separation effect, it is crucial to correctly grasp the size of the constriction and expansion point between the colors on different fabrics and the arrangement order of the various rotary screens when printing. Our experience is that each flat cloth needs to be overlapped, and the finest stems can be as thin as 0.2mm. In knitting, each set of colors needs to be overlapped by 0.25-0.35mm. In the case of color blocks and thin stems, the same color is used. Due to avoiding color blocks from leaking, the selection of the mesh should not generally exceed 80 meshes, so the fine stems should not be smaller than 0.3mm, and the individual color stems should not be smaller than 0.25mm; the yarns of the yarns are relatively coarse and can easily cause cross-coloring. Therefore, it is not appropriate to overlap between two adjacent colors. The overlap between each color should also depend on the far-reaching relationship of the arrangement of the circular nets, and the adjacent ones should be less stacked, and the far apart ones should be stacked. If the camouflage pattern (large color pattern) is printed on the knitted fabric, the overlapped relationship may be 0.3, 0.5, and 0.8 mm, so that it is not easy to show whiteness and no more distinct third color is produced. The pattern of the roving card over the floor must be separated by 0.2-0.25mm between the other color and the floor. However, if the arrangement is far from the floor, it can be in the range of 0.1-0.15mm.
The overlap between colors must also grasp a basic rule that the same color or similar color should be enlarged, and the contrast color should be reduced. The order of the circular nets should follow the principles of thin stems, dark colors, light colors, and large color blocks.
The mastering of the overlap size between color and color affects the ease of printing production and also affects the effect of printing. The arrangement of fabrics, the arrangement of circular screens, and the relationship between color and color should be considered. The size, the pressure at the time of printing, and the thickness of the printing paste determine various factors. Only by constantly analyzing the printing effect and accumulating experience, can we obtain the best that suits the characteristics of the plant variety, the printing operation habits, the pulping operation habits. Expanding the dimensions produces a good product.
two. Various color separation operations
Puff color pattern
Such patterns include large (small) decorative flowers, abstract composition patterns, and large flowers back to animal cartoons. Manuscript phimosis line
If the width is more than 2mm, the width of the separation line should be 0.3 to 0.5mm smaller than the original, and the large color blocks without phimosis should be retracted to 0.5mm or more. After the color separation is completed, the following guidelines shall be mastered for the existence of a monochrome document: Over 0.5 mm overlap between similar colors, and 0.3 mm overlap between contrasting colors to avoid the third color as much as possible. In case of patterns in all over the land, it is better not to stack more than one, so as to avoid dew exposure due to inaccurate flowers.
For fine phimosis or silk flowers and cartoons, such as thin stems, silk thread too dense, should be properly deleted. In principle, the spacing between two thin stems is not less than 0.6mm.
2. Moire and watercolor effects
The processing of the cloud draft should select the corresponding grayscale printing in 256 gray levels according to different shade levels. The dark gray range is selected between 80 and 120, and the light gray range is between 180 and 220. Before you can first use the curve color tool on the clear moire, make different color of the bottom color blocks, the same cloud pattern is filled into the same color, and then perform the zoom expansion point operation between the colors, save the monochrome manuscript and open the turn Make a grayscale copy, and then print the moiré on this base plate in order of the original's effect.
Watercolour patterns can be pre-processed (and can also be done in Photoshop) as needed, including sharpening, adjusting hue and lightness, and replacing colors. After the color operation, select one of the colors on the screen (take a darker middle) and adjust the selected color range to confirm the color separation. Visual effects need to be softened or blurred appropriately. The above operations are repeated for each color. This type of flower especially pays attention to the polychromatic part, and should save the polychromatic color as a single color, complete the necessary operations, and then merge them into each color. Water stains and leak marks are the main expressions of watercolors. After the effect is produced, the extracted colors can be appropriately modified and saved as a single color. After each cloud draft is completed, it is merged again. To make a rich, deep and perfect printing color separation draft, we must also make an overall meticulous repair (decoration), and its final effect is also related to the operator's level.
The selection of cloud drafting screen parameters is also crucial. It will directly affect the printing effect. The general principle is: the screen accuracy is 600dpi, the angle is 45°, and the network cable is selected between 45 and 55. The accuracy is 300dpi, the angle is 45°, and the cable is selected between 30 and 45. The choice of network type should be based on the premise that the original manuscript can be properly expressed.
3. Gouache, texture and pen sketch
Flying white and dry pen strokes are common features of this type of pattern. According to the need for the original pre-treatment after the corresponding color (same as above), after the completion of the color of each monochrome. Open each monochrome draft to eliminate noise, eliminate noise, and apply appropriate shrink point processing to it, and then fully trim the local details. The color separations made in this manner can maintain the charm of the manuscript better. Sometimes there are pen sketches with dense lines, and you should use curves and other tools to complete the separation. If you have conditions to prepare a set of pens for drafting pens, you will naturally be able to use them more handily. The effect is of course more vivid and more lingering.
4. Synthetic yarn
The rectangular shape of the yarn weaving point works best in the horizontal and vertical directions, followed by a square, and occasionally a circle. The smallest color weaving point should be not less than 0.3mm with 0.1mm pitch. For large-area, continuously-dense pattern of dyed spots, the number of points should be reduced appropriately and the points should be slightly enlarged. For multi-colors of color blocks that are intertwined by warp and weft threads, colors should be selected separately, and appropriate overlaps should be made between the colors, and then merged into the monochrome manuscripts of each color-spun point.
III. Concluding remarks
It is not possible to recognize the printing separation in isolation, but it must also be organically combined with other printing processes (web-making and printing). In practice, the actual printing effect of the fabric should also be analyzed frequently. According to the printing effect, the printing points The necessary adjustment of the color process can ultimately form a mature separation process.
The application of computers will undoubtedly greatly improve the accuracy and speed of printing separation. To make high-quality printing and color separation drafts, it must be combined with the correct application methods. At the same time, it requires operators to have a certain degree of fine arts. This is crucial. of.
The standard for checking the quality of printed color paper is to see if it meets the requirements of the entire printing process and prints high-quality products. Under the premise of fully understanding the manuscript spirit and correctly representing the color separation effect, it is crucial to correctly grasp the size of the constriction and expansion point between the colors on different fabrics and the arrangement order of the various rotary screens when printing. Our experience is that each flat cloth needs to be overlapped, and the finest stems can be as thin as 0.2mm. In knitting, each set of colors needs to be overlapped by 0.25-0.35mm. In the case of color blocks and thin stems, the same color is used. Due to avoiding color blocks from leaking, the selection of the mesh should not generally exceed 80 meshes, so the fine stems should not be smaller than 0.3mm, and the individual color stems should not be smaller than 0.25mm; the yarns of the yarns are relatively coarse and can easily cause cross-coloring. Therefore, it is not appropriate to overlap between two adjacent colors. The overlap between each color should also depend on the far-reaching relationship of the arrangement of the circular nets, and the adjacent ones should be less stacked, and the far apart ones should be stacked. If the camouflage pattern (large color pattern) is printed on the knitted fabric, the overlapped relationship may be 0.3, 0.5, and 0.8 mm, so that it is not easy to show whiteness and no more distinct third color is produced. The pattern of the roving card over the floor must be separated by 0.2-0.25mm between the other color and the floor. However, if the arrangement is far from the floor, it can be in the range of 0.1-0.15mm.
The overlap between colors must also grasp a basic rule that the same color or similar color should be enlarged, and the contrast color should be reduced. The order of the circular nets should follow the principles of thin stems, dark colors, light colors, and large color blocks.
The mastering of the overlap size between color and color affects the ease of printing production and also affects the effect of printing. The arrangement of fabrics, the arrangement of circular screens, and the relationship between color and color should be considered. The size, the pressure at the time of printing, and the thickness of the printing paste determine various factors. Only by constantly analyzing the printing effect and accumulating experience, can we obtain the best that suits the characteristics of the plant variety, the printing operation habits, the pulping operation habits. Expanding the dimensions produces a good product.
two. Various color separation operations
Puff color pattern
Such patterns include large (small) decorative flowers, abstract composition patterns, and large flowers back to animal cartoons. Manuscript phimosis line
If the width is more than 2mm, the width of the separation line should be 0.3 to 0.5mm smaller than the original, and the large color blocks without phimosis should be retracted to 0.5mm or more. After the color separation is completed, the following guidelines shall be mastered for the existence of a monochrome document: Over 0.5 mm overlap between similar colors, and 0.3 mm overlap between contrasting colors to avoid the third color as much as possible. In case of patterns in all over the land, it is better not to stack more than one, so as to avoid dew exposure due to inaccurate flowers.
For fine phimosis or silk flowers and cartoons, such as thin stems, silk thread too dense, should be properly deleted. In principle, the spacing between two thin stems is not less than 0.6mm.
2. Moire and watercolor effects
The processing of the cloud draft should select the corresponding grayscale printing in 256 gray levels according to different shade levels. The dark gray range is selected between 80 and 120, and the light gray range is between 180 and 220. Before you can first use the curve color tool on the clear moire, make different color of the bottom color blocks, the same cloud pattern is filled into the same color, and then perform the zoom expansion point operation between the colors, save the monochrome manuscript and open the turn Make a grayscale copy, and then print the moiré on this base plate in order of the original's effect.
Watercolour patterns can be pre-processed (and can also be done in Photoshop) as needed, including sharpening, adjusting hue and lightness, and replacing colors. After the color operation, select one of the colors on the screen (take a darker middle) and adjust the selected color range to confirm the color separation. Visual effects need to be softened or blurred appropriately. The above operations are repeated for each color. This type of flower especially pays attention to the polychromatic part, and should save the polychromatic color as a single color, complete the necessary operations, and then merge them into each color. Water stains and leak marks are the main expressions of watercolors. After the effect is produced, the extracted colors can be appropriately modified and saved as a single color. After each cloud draft is completed, it is merged again. To make a rich, deep and perfect printing color separation draft, we must also make an overall meticulous repair (decoration), and its final effect is also related to the operator's level.
The selection of cloud drafting screen parameters is also crucial. It will directly affect the printing effect. The general principle is: the screen accuracy is 600dpi, the angle is 45°, and the network cable is selected between 45 and 55. The accuracy is 300dpi, the angle is 45°, and the cable is selected between 30 and 45. The choice of network type should be based on the premise that the original manuscript can be properly expressed.
3. Gouache, texture and pen sketch
Flying white and dry pen strokes are common features of this type of pattern. According to the need for the original pre-treatment after the corresponding color (same as above), after the completion of the color of each monochrome. Open each monochrome draft to eliminate noise, eliminate noise, and apply appropriate shrink point processing to it, and then fully trim the local details. The color separations made in this manner can maintain the charm of the manuscript better. Sometimes there are pen sketches with dense lines, and you should use curves and other tools to complete the separation. If you have conditions to prepare a set of pens for drafting pens, you will naturally be able to use them more handily. The effect is of course more vivid and more lingering.
4. Synthetic yarn
The rectangular shape of the yarn weaving point works best in the horizontal and vertical directions, followed by a square, and occasionally a circle. The smallest color weaving point should be not less than 0.3mm with 0.1mm pitch. For large-area, continuously-dense pattern of dyed spots, the number of points should be reduced appropriately and the points should be slightly enlarged. For multi-colors of color blocks that are intertwined by warp and weft threads, colors should be selected separately, and appropriate overlaps should be made between the colors, and then merged into the monochrome manuscripts of each color-spun point.
III. Concluding remarks
It is not possible to recognize the printing separation in isolation, but it must also be organically combined with other printing processes (web-making and printing). In practice, the actual printing effect of the fabric should also be analyzed frequently. According to the printing effect, the printing points The necessary adjustment of the color process can ultimately form a mature separation process.
The application of computers will undoubtedly greatly improve the accuracy and speed of printing separation. To make high-quality printing and color separation drafts, it must be combined with the correct application methods. At the same time, it requires operators to have a certain degree of fine arts. This is crucial. of.
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