150g drawing paper or 250g whiteboard paper is suitable. 3. Gouache pigment, gouache, oil painting pen, palette, water cup. 4. Drawing pencil, for plate making, don't sharpen it, it's a little thicker, so it's not easy to cut the blow-molded paper, and the lines are rough and the depressions formed are clear. [Production Steps] 1. Draft: 8 for beginners. The theme can be imaginative painting or proposition creation, or it can show a still life, scenery, people and so on. 2. Plate making: Clip the drawn manuscript on blow-molded paper and draw the manuscript on blow-molded paper with a pencil (carbon paper is also acceptable). Note: Use a little force when using the pen to make the lines thicker and the depressions deeper, which is convenient for rubbing. If the lines are not obvious after the manuscript is uncovered, you can directly tick the blow-molded paper again with a pen and print it. 3. Rubbing: The paper used for rubbing can be selected according to the theme, which can be white, black cardboard (because of good decorative effect and the highest utilization rate) or other colors. (You can choose all kinds of cardboard from stationery stores, eliminating the step of painting the background color, and the effect is good. However, if there are special requirements for the background color of paper printed matter, the cardboard should be treated and colored before use. ) Clip in the rubbing paper and the prepared blow-molded paper print, and then you can draw the rubbing. Lithography color printing is to draw the conceived color on blow-molded paper. For example, if the sky is blue, paint the adjusted blue on blow-molded paper to draw the position of the sky, then cover the paper on the painted blow-molded paper, and rub the position of the sky behind the paper with your palm a few times (or make a small bag or bottle cap), and the blue will be printed on the paper. Rub a small part until the color of each part is rubbed out, the paper is uncovered, and a reverse printing is successful. [Note] 1, the coloring action should be fast, and the pigment should be stamped in time when it is wet on the blow-molded paper. If the range of color blocks is large, be sure not to imprint after painting the whole block. 2. You don't need to add water to dry the paint when you wipe it, and the effect will be good. 3. Because the printed picture is a reverse version, if there are words, you should write the words backwards when making a plate, so that the printed picture words are positive. 4. If the effect of the first picture is not satisfactory, clean the blow-molded cardboard with clean water, dry it and reprint it until it is satisfactory. In this way, multiple paintings can be made and the color matching effect can be compared. In addition, on the blow-molded paper with a pencil drawing a rough outline, a single color can be brushed with a large row of brushes to make a monochrome printed matter; Brush with ink, imprint with raw rice paper, and then dye with traditional Chinese painting pigment, so that the works have a little ink flavor and are unique.