Screen printing method to realize the process of simulation of Chinese painting

With the improvement of the social material and spiritual life, people are particularly passionate about the collection and appreciation of works of art (especially ancient paintings, famous paintings and authentic products). However, authentic products are often the only one. How can we satisfy people's desire? A new simulation replication industry has emerged. In order to better embody the charm of traditional Chinese paintings and other works of art, only the direct use of rice paper to simulate printing, which determines the simulation of Chinese painting is mainly achieved by screen printing.

In the theory of traditional painting, the so-called “multicolored ink” means that ink is roughly divided into five types: coke, thick, heavy, light, and clear. Ink painting is mainly based on ink, so when making a plate, you must seize the ink screens of five different concentrations of coke, thick, heavy, light, and clear.

1 Hand-drawn black picture (no dot)

First of all, the center of the cross around the manuscript is painted with a quasi-crossed heart, or a transparent "10" sticker is attached. The crosshair is a quasi-heart that is used to describe black images, plate-making, and printing. Lines that are too thick will result in inaccurate registration. Therefore, the alignment marks are applied to the small-sized linear pens and are required to be precise and accurate. Then prepare a slightly transparent polyester picture (with surface treatment) that is slightly larger than the original.

The choice of ink is based on the thick ink on the transparent film, not sticky after drying, and not peeling off as the top grade. The "Yideko" high-quality ink sold on the market can meet the above requirements. When using other brands of ink, in order to prevent cracking, peeling phenomenon, you can add a little glycerin or sugar in the ink, glycerin should not be added too much or it will not be easy to dry. Can also use advanced ink depiction, the effect is good.

1) Descriptive requirements

    The depiction of the lines is based on the drip fountain pen, the fine lines use the fine water fountain pen, and the thick lines use the rough water fountain pen.

Straight lines, arcs should be drawn with a straight line pen, compasses, curved plates, and so on.

Patterns with large areas are first drawn out with a dab pen, and then filled with ink with a brush or directly written with a brush.

No matter whether the lines, images, or characters depicted by the brush or the dipstick are required to be completely black and opaque, there must be no unevenness or graying, and no cracks or spots can occur after drying.

The description of the color sequence: one by one in the order of line version darker → darker version → lighter version, and the printing order in the future is just the opposite.

2) Drawing steps

The contours of the original artwork are lined and the black drawings of other colors are drawn in the black version of the line version. Due to the fact that the hand-drawn image cannot completely match the lines of the original, the method of drawing is to apply the double-colored transparent film on the black version of the online version with the double-sided tape, aiming at the four-side cross quasi-center, and using the line version of the outline of the line as the second time. The black colored maps are drawn in this way.

If there is no line between the colors of the original image, the drawing will be drawn in the order of coke → thick → heavy → light → clear (in reverse order). The drawing of any color is based on the original. The drawing method is as follows: firstly, put the first color transparent piece on the original, paint it, dry it, then apply a layer of talcum powder, then wipe off the excess powder; Two transparent sheets are aligned on the black map of the first color, and the second color is drawn.... The parts that need to be overprinted should be complemented until all black images have been drawn. Then remove all black images one by one.

When drawing a black map, you need to develop a habit of creating more ink. About 10cm of ink will be drawn every time you trace a line, so as to prevent the lines from drawing less ink and less black. Lines that cannot be traced once, if several connections are required, care should be taken to ensure that the thickness is consistent and the curvature is smooth.

Between the two colors should be overlapped 0.3 ~ 1mm, if there are thin lines separated by the width of a line overlap, so as to avoid color printing when the gap between the two colors or excessive phenomenon.

After the black ink is dry, a layer of talcum powder should be applied to the ink surface to prevent sticking to each other or overlapping. The hand-drawn black pictures described above need to be drawn according to the shade of the manuscript picture. They need to draw five kinds of pictures: coke, thick, heavy, light, and clear. This requires the painter to have artistic cultivation and painting skills, as well as the ability to understand and appreciate traditional paintings. In order to achieve a higher level of screen printing.

3) Calibration check

After the black pictures are all described, they must be proofread on the same color to see if there are any mistakes or omissions, and then they are all aligned on the cross to check and proofread. If there is any error, they can be scraped off with a blade. The missing or blank ones should be filled. Added ink description.

2 screen production

· Use 150 to 200 mesh mesh cloth.

· Wooden frame or metal frame can be manually stretched or mechanically stretched.

·Direct photosensitivity plate making method, using aqueous diazo photosensitive emulsion.

3 Aqueous slurry preparation

    After dissolving CMC (methyl cellulose) in water at a ratio of 1:10, the agent and ink are reinforced. This is suitable for printing works such as calligraphy and traditional Chinese painting.

The traditional ink is divided into loose smoke and soot according to the different raw materials. The loose smoke and ink contain less gum components, although it is dark, but it is dull; the soot is black and shiny. In general, the ink used for painting is fumes and ink, and the quality is fine, light plastic, and bright black.

4 Paper selection

The traditional Chinese painting paper is mainly Xuan paper. Xuan paper is divided into three categories according to the different materials used: Xuanxuan, leather material, and grass material; according to the size of the canvas, it is divided into three feet Xuan, four feet Xuan, five feet Xuan, six Xuan Xuan, Ba Xi Xuan, Zhang Xuan Xuan, etc.; According to their processing thickness and sub-single propaganda and clip Xuan; according to the different performance requirements of Gongbi painting and freehand drawing is divided into familiar and declared. Due to the different materials and thicknesses of Xuan paper, their properties have their own characteristics and their lengths. Such as copy ancient paintings, Xuan paper selection imitation patina (light yellow), absorbent cotton rice paper. The quality of paper should be pure texture, dense white, loose and tough.

5 Printing process

· Firstly, “draw the felt” on the silk screen printing table. Since the ink drawing paper is raw rice paper, its performance is easy to absorb water and easy to infiltrate. When the screen printing ink is easy to be exposed, it is stained on the platen through the paper. Destroys the effect of the screen. Therefore, wool felts are laid under the rice paper, because the fluff on the surface of the wool felt lifts up the rice paper and causes a layer of air cushion under the paper. The moisture in the ink will not be exposed, will not adhere, and will not affect the printing quality. .

· The squeegee should be 2cm to 3cm larger, and the tip of the squeegee should have small rounded corners.

· Before printing, it is best to spray a thin layer of clear water on the rice paper to encourage ink to quickly penetrate the rice paper. Water must not be greedy, or it would be counterproductive.

· The positioning card can use the patented product "Stepless Positioning Card" manufactured by Yihua Decoration Factory in Fuxing District, Handan City, Hebei Province.

·When squeegeing by hand, the squeegee direction and the ink reflow direction are opposite. When the squeegee is printed, the angle between the tape and the stencil is between 30°C and 70°C, and the squeegee is printed from a distance to the bosom. When the ink is returned to the bosom, it is far from the bosom. Push.

· The arrangement of printing color sequence is also the key to the quality of printed matter. When printing and copying ink paintings, ink should be arranged in the order of clear → light → heavy → strong → dark ink. After printing the cleaning plate first, it is not necessary to wait for drying. Then, the light ink plate is printed, and the wet ink lightly penetrates into the clean ink, followed by the printing of the heavy ink plate, and so on, all at once.

After the color registration is completed, some of them need to be partially rendered and embossed.

It is difficult to achieve the change of ink rhyme with a black version if the use of electric divisions for copying ink paintings is difficult to achieve. Therefore, two black editions (black and black editions) and one gray edition are generally used. The black-and-grey plate-making and coke-black version should be short-tuned, highlighting the coke and dark ink so as to achieve the effect of “heavy weight but not strong”; the black-tone network tone should be complete, and it should be able to achieve the following: The role of the gray version of the network tone to the middle tone and light tone, so that light, clean ink rhyme soft. In this way, the coke and ink can be distinguished and the strokes can be coherent, which fully embodies the artistic effect of ink painting as the main theme of ink painting.