What is take up factor for a flute?
The take-up factor governs the amount of fluting material required to manufacture the corrugated board. It allows for the fact that, when laid out flat before converting, the area of fluting material required to manufacture a defined area of corrugated board is greater than the surface of the converted board itself.
What is take up ratio?
TAKE-UP RATIO is the relation between the amount of medium paper and liner paper utilized by a single facer to produce corrugated board.
Which is a better estimate for the weight of a flute?
Flute Weight The average flute weighs between 400 and 600 grams -1 to 1.5 lbs.
What is F flute?
F Flute: Also called “micro-flute”. F is half the thickness of E, but what it lacks in depth, it makes up for in flute density, so sometimes E and F flutes can be used interchangeably. F has about 30% more flutes per foot.
Are 32 ECT boxes strong?
test refers to bursting strength, while 32 ECT refers to stacking strength. Boxes that meet 200 lb. test will also exceed 32 ECT stacking strength. Uline and UPS recommend 200 lb.
How much does a standard flute weigh?
In general, the average weight of all flutes tested was 18.09oz (1.13lb). The weight comparison between material demonstrated that the silver flutes were the lightest (average of 17.47oz), followed by gold (18.39oz), Platinum-Clad (18.3oz), Gold-Silver Fusion (18.9oz), and wooden flutes being the heaviest (19.84oz).
What is the take up factor for medium flute?
There is a take up factor for medium. For C flute the take up is 1.44 and for B flute it is 1.35. The Wt/msf contains 2.5 lbs/msf of starch adhesive for single wall and 5 lbs/msf for double wall.
What is the target basis weight of a flute caliper?
Below is a table of target basis weights p/msf and flute calipers for various grades of single wall and double wall grades prior to converting operations. There is a take up factor for medium. For C flute the take up is 1.44 and for B flute it is 1.35.
What is the crush allowance on a flute?
The crush allowance ranges from .001-.006 on single wall flutes. Heavier grades are more resistant to crush. Newer machinery also helps protect against crush.
What are the different sizes of flutes?
Flutes come in sizes, known as flute profiles, ranging from A-flute (the largest) to F-flute and below (microflutes). The letter designation relates to the order that the flutes were invented, not the relative sizes.