hydrogen bond (Noun). A weak bond in which a hydrogen atom in one molecule is attracted to an electronegative atom (usually nitrogen or oxygen) in the same or different molecule. hydrogen bond (Verb). To bond to another species by means of hydrogen bonds.E.g. Water hydrogen bonds with itself.ydrogen bond (Noun). A weak bond in which a hydrogen atom in one molecule is attracted to an electronegative atom (usually nitrogen or oxygen) in the same or different molecule. hydrogen bond (Verb). To bond to another species by means of hydrogen bonds. E.g.
CMYK is a subtractive color model that is used in color printing, and it refers to cyan, magenta, yellow, and black for the inks used in color printing. The âKâ in CMYK is understood to be the key since in four-color printing cyan, magenta, and yellow printing plates are aligned with the black plate which is the key. In other words the other colors are setup in relation to the black which is thus the key to the process. The fact that it is subtractive means that in the CMYK process the color results are achieved by masking colors on a lighter background.
a pms or spot colors is necessary for certain colors such as navy blue bright orange or metallic colors that are impossible to produce using cmyk inks in some cases especially for higher quantities it s less expensive to use 2 color printing than 4 color process printing