Gloss is the attribute of a surface that makes the object look shiny or lustrous. It depends on the light reflection of the paper surface. The more even and smoother the paper surface, the higher the gloss of the paper. High gloss is desirable in a high-quality, prestigious printed image. Paper gloss is measured as the reflection of light sent to the paper surface at a specific angle, usually 75°. Matt coated paper usually has a gloss value of 10 to 25, silk coated papers of around 40 and glossy coated paper of around 60 to 80.
Grain direction
The grain refers to the directional alignment of the fibres in a paper sheet structure. In folio, long grain is generally oriented in the direction of its longest edge. Short grain is at a 90º angle to this and refers to the orientation of fibres across the page. In reels, long grain will run the length of the reel.
