Relative basis weight
was calculated using the Beer-Lambert law , according to which the intensity of light transmitted through the nonwoven is given by
There is a need to develop the mathematical relationship between paper basis weight
and modulated THz pulses.
The mean coefficient of variation in basis weight
for all Vortigen samples was 8.97 while that for the standard samples was 12.60.
The new Low Energy X-Ray Sensor is ideally suited for thickness and basis weight
measurements of light weight products and offers excellent narrow streak resolution.
The boardmaking line exceeded its quality and production targets on several basis weights
shortly after start-up.
DECORATIVE LAMINATES DEMAND (million square feet) 1997 2002 2007 Low Basis Weight
Papers 2,590 3,610 4,440 Saturated Papers 2,075 2,705 3,350 Vinyl Films 1,775 1,970 2,300 Decorative Foils 1,105 1,475 1,760 Total Low Pressure Laminates 7,545 9,760 11,850 High Pressure Laminates 1,590 2,155 3,130 Edgebanding 145 185 220 Total Decorative Laminates 9,280 12,100 15,200 % Annual Growth 02/97 07/02 Low Basis Weight
Papers 6.9 4.2 Saturated Papers 5.4 4.4 Vinyl Films 2.1 3.1 Decorative Foils 5.9 3.6 Total Low Pressure Laminates 5.3 4.0 High Pressure Laminates 6.3 7.8 Edgebanding 5.0 3.5 Total Decorative Laminates 5.5 4.7 Source: The Freedonia Group Inc.
Some mechanical properties of polymeric film, plate or nonwoven fabric can be predicted from the determination of two important structural properties: the local mass per unit area (basis weight
) and the local fiber or molecular orientation.
Stora Enso Natura liquid packaging board now offers improved print quality and lower basis weight
. This improvement was implemented in response to customers' requirements for stability, high quality and environmental benefits through improved material efficiency.
It entangles 42% to 55% chopped long glass fibers in an aerated PP matrix, reducing density to 0.3 to 0.8 g/cc and basis weight
to 600 to 2000 g/[m.sup.2], depending on glass content and sheet thickness.
Growth will be driven by saturated papers (76%), decorative foils (52%) and low basis weight
papers (50%), according to the 2001 edition of GC&A's Forecast of Decorative Overlays.
This change in average basis weight
can either be the result of newer equipment within a process being capable of delivering lighter weight products.