Quantity: *1,000 Box Minimum

1,000 1,500 2,000 2,500 5,000 10,000 25,000 50,000 100,000

Size in Inches:

Length x Width x Depth

Printing:

Custom-Printed Sheets Direct Printing Foil Stamped Sheets Pantone Ink

# of Print Colors:

1 Color 2 Colors 3 Colors 4 Colors

Imprint Coverage:

None 10% 25% 50%

Base / Flute:

200# Natural Kraft C-Flute 200# Natural Kraft B-Flute 200# White Kraft B-Flute 200# Natural Kraft E-Flute 200# White Kraft E-Flute 200# Custom Color E-Flute 275# Natural Kraft C-Flute 150# Natural Kraft F-Flute

Finishes:

Matte Varnish Gloss Varnish UV coatings

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Corrugated Packaging Board Flutes Explained

Corrugated Technical Terms:

Single Face: One medium is glued to one flat sheet of linerboard.

Single Wall: The medium is between two sheets of linerboard. Also known as Double Face.

Double Wall: Threes sheets of linerboard with two mediums in between.

Triple Wall: Four sheets of linerboard with three mediums in between.

Flutes

Architects have known for thousands of years that an arch with the proper curve is the strongest way to span a given space. The inventors of corrugated fiberboard applied this same principle to paper when they put arches in the corrugated medium. These arches are known as flutes and when anchored to the linerboard with a starch-based adhesive, they resist bending and pressure from all directions.

Flutes come in several standard shapes or flute profiles (A, B, C, E, F, etc.). A-flute was the first to be developed and is the largest common flute profile. B-flute was next and is much smaller. C-flute followed and is between A and B in size. E-flute is smaller than B and F-flute is smaller yet.

In addition to these five most common profiles, new flute profiles, both larger and smaller than those listed here, are being created for more specialized boards. Generally, larger flute profiles deliver greater vertical compression strength and cushioning. Smaller flute profiles provide enhanced structural and graphics capabilities for primary (retail) packaging.

Different flute profiles can be combined in one piece of combined board. For instance, in a triple wall board, one layer of medium might be A-flute while the other two layers may be C-flute. Mixing flute profiles in this way allows designers to manipulate the compression strength, cushioning strength and total thickness of the combined board.

Early Corrugated Packaging History

1856
The first known corrugated material was patented for sweatband lining in tall hats of Victorian Englishmen.

1871
Unlined corrugated first appeared as a packaging material for glass and kerosene lamp chimneys.

1874
A liner was added to one side of the corrugated material to prevent the flutes from stretching.

1894
Corrugated was slotted and cut to make the first boxes. Wells Fargo began using corrugated boxes for small freight shipments.

1903
Corrugated was first approved as a valid shipping material and was used to ship cereals.

1909
Rubber printing plates were developed which allowed for greater design creativity.

1957
Flexographic printing virtually replaced letterpress and oil-based ink.

Early 1980s
Preprinted linerboard emerged.

Late 1980s
New developments in the anilox roll, plate and press design drove the industry into short-run, high-graphic products.