What Is Canvas Printing?

Oil canvas is a kind of cloth used to paint oil on a specific cloth-based substrate to prevent the penetration of oil, solvents, water and other coatings. The coated cloth used for inkjet, photo, indoor and outdoor advertising, light boxes, etc. is also called canvas. The materials used for hand-painted canvases are mainly tight and flat cotton canvas and linen. Chemical fiber cloth is extremely smooth and smooth, suitable for inkjet and printing.

Oil on canvas

Canvas is coated on a specific cloth substrate

Hand-painted: oil painting,

According to the material can be divided into: linen canvas, cotton canvas, chemical fiber (polyester) canvas, cotton (55% hemp, 45% cotton) canvas, other materials canvas.

Canvas: A coating substrate that prevents the penetration of oil, solvents, water, etc. on a specific cloth substrate, which is used to draw oil painting cloth.

Hand-painted canvas: stable size, strong elasticity, clear texture, no cracking of the substrate, strong durability, good weather resistance, wide thickness, compact and thick, smooth and smooth, flexible, impact resistance, less pores on the hair, special tissue Satisfy the requirements of oil painting on painting creation and collection.

Inkjet canvas: smoothness, gloss, cloth pattern, coating fastness, coating pinholes, curl, water resistance, absorption to oily, water-based dyes and pigment inks, inkjet printing resolution.

Indoor and outdoor advertising,

Canvases generally do not need to be bleached and dyed, which will seriously damage its strength and durability.

The purpose of making the canvas is to block the pores, smooth the texture, block the penetration of linseed oil, and add white pigment to make the canvas more difficult to absorb and brighter; increase it to make it denser and thicker so that the painter can better achieve his purpose And make its works durable, and play an adhesive support and protection of the works.

Purpose of foundation

Oil painting uses dry vegetable oils such as linseed oil to form and fix pigments. Linseed oil penetrates on cloth, walls, wood blocks, and other reasons. To create oil painting on this kind of material, you must make a base that blocks the penetration of linseed oil.

Canvas production is to solve the following problems of flax canvas base cloth through the foundation:

1: Block the grain pores and hairs to solve the problem of smoothing the canvas; 2: Block the oil absorption and oil permeability to solve the absorption problem of the oil canvas; 3: Form a dense, thick and strong dimensional stable substrate to solve the problem of oil canvas durability; Cover the base fabric color with white pigment to solve the bright problem of oil canvas.

Hand-made

1: The canvas should be straightened and tightened, and fixed on the board or frame with dense nails around; you can brush the cloth around with glue first, and then harden to reduce the bending deformation; The primer is not coated with water or a very small amount of water, and multiple thin scraping methods are used, and each layer must be scraped evenly. Block the pores of the texture, no bright and transparent spots under the light. Sometimes hair particles stab, and repair and sanding. The force should be light, fast, fast, and even. If the force is too strong or the glue is uneven, too much water will penetrate to the back to form thick hard spots. After the glue is dry, it will bubble and bulge.

The canvas must be equipped with a frame strip, and cross braces are added, and a tenon structure is used as a frame. Prevent frame angles, bevels, curved surfaces, and shaking. The nails should be evenly distributed. If the coating surface shrinks after drying and the frame surface deforms, adjust the heavy nails to make the frame surface smooth and tense. Before cutting the cloth, measure the size and mark it. Use a stylus to draw along the line along the mark. Then brush a few centimeters of rubber at the line and cut it dry. It also stretches the surface of the frame to prevent the cloth pattern from being bent, which will cause the substrate to crack and fall off in the future.

Pine: hard and heavy, dense wood grain, bright yellow. Not easy to deform, high quality frame.

Tung wood: fast-growing forest material, hard cartilage, lighter, sparsely colored gray wood. Not easy to deform, suitable for common frame.

Shirt wood: hard and crisp color

It is divided into four points: base fabric design, base fabric finishing, coating formula and coating process.

Technical indicators: mechanical test, anti-fold, needle eye, false eye, oil permeability, oil seepage, gloss, flexibility, thickness.

Professor Max Doerner (1870-1939) of the Bavarian Academy of Fine Arts in Munich, Germany, in his book "Art Materials and Its Application in Painting" (this book has long been esteemed by Western art circles as the most technical material science). One of the important works, even known as the "Bible of Techniques"): The most common canvas used by painters is ordinary linen fabric. The warp and weft interweaving method makes the thread and thread tightly entangled to produce the most dense. , Uniform canvas; low-quality textiles will have nodes and pores.

Regarding the foundation, Professor Donaire said: The foundation is applied to materials such as textiles or wooden boards to make its surface more compact, less suitable for absorption, and brighter, so that the painter can better achieve his purpose and make his work durable.

It shows that after nearly five hundred years of practical verification in western oil painting, tight, thick, uniform, knotless and voided linen fabrics are the most suitable as oil painting canvas. Bocklin (Swiss romantic painter) said that without a basic understanding of materials, we are slaves to materials. Professor Donaire said: For painters, the most important thing is not the chemical composition of materials, but their application performance.

Material technique is the foundation of painting art. Realizing the spiritual and aesthetic value of works is a difficult problem for painters. In most cases, the painter lacks knowledge of the relevant materials and lacks the ability to make judgments. No matter which painter wants to use materials correctly and most effectively, he must understand and follow some basic rules for choosing to use painting materials, otherwise he will sooner or later pay a high price for his mistakes and mistakes. Only when the painter has mastered all kinds of materials can he lay a solid foundation for developing his personal style, and at the same time he can guarantee the permanence of his work.

Canvas is an inseparable part of a work of art, and it also reflects the spirit and aesthetic value of the work. The special texture, appearance, and background color of the canvas play a part of the technique in achieving the creative purpose; absorption, elasticity, touch, and adhesion are important conditions for completing the creative process; durability, stability and very strong , Play a supporting and protecting function of the work.