CMYK is a color model in which all co â¦ lors are described as a mixture of these four process colors. CMYK is the standard color model used in offset printing for fullcolor documents. If we print cyan, magenta and yellow inks on white paper, they absorb the light shining on the page.his process uses the colors cya â¦ n, magenta, yellow, and black or CMYK. Most of the entire of spectrum of colors are produced with just the four process in colors. So it is called four color printing because of the use of CMYK.
Pine tar ointment's use to treat wounds dates back centuries. The use of pine tar ointment as an antibacterial to treat wounds dates back centuries. There is nominal evidence that ancient civilizations of the Near East and Sumeria used pine oils and ointments to cleanse wounds and prevent gangrene.
Tar soap, containing pine tar, made by the anaerobic pyrolysis of pine wood, contains pine creosote, which has mostly the three isomeric cresols as its active principles, along with the isomeric xylols, alpha and beta pinene, and methanol.