Traditionally, oil on canvas is divided into two types: hand-painted and ink-jet. Hand-painted oil on canvas is divided into two categories: water-based and oil-based. Water-based oil canvas uses water-based pigments and dye inks. Because it is water-based, it is more environmentally friendly, but it is not suitable for outdoor use. For this reason, oil-based oil canvases have appeared. Although they solve the outdoor needs, there is a big flaw in ink Not environmentally friendly, harmful to human body. For this reason, oil canvas manufacturers are constantly researching and testing to solve this problem, so that there is a weak solvent oil canvas. This oil canvas is not only waterproof and oily, but also widely recognized in the industry.