An abbreviation for machine-glazed, referring to paper that receives a high-gloss finish on one side while remaining rough on the other. This extreme two-sidedness is achieved by pressing the wet web against a massive, steam-heated Yankee cylinder during drying. The polished metal imparts a highly reflective, closed surface to the sheet, maximizing print gloss on the glazed side.
The customer wants a 40-gram MG kraft for that flexible packaging run.
Because only one side touches the drying cylinder, MG papers have wildly different optical properties depending on which side you measure. Always specify wire side or felt side when testing.
Also heard as
- machine-glazed
Related terms
Gloss
The mirror-like shine of a paper or print surface, measured as specular reflectance at a defined angle.
Two-sidedness
Difference in properties between the two faces of a paper sheet, such as color, brightness, gloss or texture.
Smoothness
How flat a paper surface is at a fine scale, usually measured by air leaking between the sheet and a reference land.