Corrugated Fiber Board (C.F.B.) packaging is a versatile, economic, light, robust,recyclable, practical and yet dynamic form of packaging. Corrugated fiber boardpackaging offers almost unlimited possible combinations of board types, flute sizes,paper weights, adhesive types, treatments and coatings.  

Corrugated Fiber Board is made from papers made up from cellulose fibres, which are virgin or recycled. This makes Corrugated Fiber Board a renewable natural resource.Corrugated Board is made from a combination of two sheets of paper called linersglued to a corrugated inner medium called the fluting. These three layers of paper areassembled in a way which gives the overall structure a better strength than that of each distinct layer.
Components of C.F.B.:
C.F.B. has three components which are as follows:
Ω Liner / Ω Fluting Medium / Ω Adhesive 


Liner:
Kraft paper of above 80 gsm to 250 gsm is used for making liner. Preferably outer most liner used for box should be of the maximum grammage. 


Functions of Liner:
a.Resist hazards like puncture, burst, abrasion, tear etc.
b.Properly hold the fluting medium when once combined.
c.Resist moisture or water either outside or inside depending on the nature of product    
  packed.d.Be amenable to printing.Waterproof paper such as bitumen, sandwiched,
  poly-coated or wax coated are alsoused for liner.