Analysis of 6 key contents of textile multicolor printing technology

The

The two colors overlap each other, and the overlapping portion subtracts the respective absorbed color light after mixing, so that the light energy reflected or transmitted by the mixed color is lowered, and an alternative color is formed, and the color becomes dark.

The main significance of hue, lightness, and purity is to use a small amount of hue to form more hue; brightness: the degree of color, the brightness of the dye after the color drop, printing coating cover printing due to titanium dioxide, and the background color After the overlap, the lightness is increased, the significance of the lightness in the multicolor printing is to enhance the layering of the printing; the purity: the saturation of the color, the higher the purity, the brighter the color, the more the color stacking, and the lower the purity, the stacked printing pair The determination of color purity should be conducive to the vividness of the picture.

Theoretically speaking, magenta, cyan, and yellow are the three primary colors of dyes. They are the basis for all dyestuffs. Most of the dyes and coatings commonly used in actual printing do not have the three primary colors in the strict sense. Usually, they are similar to red, yellow, and blue, but they are stacked. The range of colors produced is less than that of magenta, yellow and cyan, and the brightness of paint shades is better than that of activity and dispersion.

Inter-color: Two dyes that are close to the primary color shade are mixed, called secondary colors such as orange, green, and purple; in stacked-print printing, when the dark color is printed first, it penetrates into the fabric and is equal to the color The color light tends to be dark, and if it is light-colored, the same amount of superimposed color light tends to light-colored;

Duplex: The color containing the three primary dyes is called the complex color, which is the tertiary color. The three primary colors are mixed in equal amounts to obtain the grayish black with the minimum brightness. When the color is not equal, different complex colors can be obtained, and the color shades tend to have a large proportion of primary colors. The coffee, dark green, earth red and all kinds of gray in the color printing are laminated one at a time;

Including solid color overprinting, dot overprinting, solid color and dot overprinting in three ways;

There are paint, activity, dispersion, it shows the law of color subtractive method, while the hiding power of the paint is higher than the active dispersion, the shade of light is more emphasis on the post-printing, and the active dispersion is the first printing of the easy-infiltrated fabric, and the post-printing of the accumulated fabric surface. , Easy to wash off when soaping, so emphasis on the first printing paste; cover printing paste containing titanium dioxide, there is a cover, can only be overprinting network, the color is the color point juxtaposed color, the tendency of shade depends The ratio of dot color to background color. The active, disperse, and overprinting of the dots of the paint is the dual result of color transmission and coloration. Solid color overprint: The color block presses the color block, and the background color produces a third color through the overlap color.

Overprint: Overprinted by moire, flat dot overprint, moiré, and overprint;

Moire overprint: the same color phase moire: mainly for the depth of the color shade to express the level of excessive, the performance of the style is more than a moire level rich, thick; different shades of moiré overprint is the main content of moiré superimposition. This method is used in printing to realize the polychromatic effect of overprinting, and the color is more abundant;

Flat dot overprint: a uniform dot overprint, such as a 30% uniform dot printed in red, is seen in the bleached fabric is light red, and then embossed dot 30% of the yellow uniform dot, see is light orange, By analogy, other flat screen dots are overprinted on each other, which can discard more third colors, but the fabric is not as clear and colorful as paper.

Most of active, disperse, coating moire and solid overprints press light-colored patches on dark moiré, and cover printing pastes can print lighter moiré patterns on deeper backgrounds. India's level and color change.

Solid color overprint: the coloring area is larger than the coloring area of ​​the shrinkage of 1 to 2 lines; fine cloth shrinks 1 to 2 lines than the coarse cloth; the same pattern, activity, dispersion relative coating shrinks 1 to 2 lines, because the paint spread is less than the previous two Overprinting: Overprinting: Overprinting of moiré depends on the selection and control of color separation and screening; moire printing is divided into two types: regular and irregular, dot shape, screen angle, screen grayscale, and screen cable Number is the basic element of regular screening. The shape of dots is preferably a dot, the number of screen meshes is high, the number of screens can be high, and the coating is relatively low.