Substrates final 2-2

Solid Bleached Sulfate

Coated unbleached kraft 

Coated Recycled Board 

Folding Boxboard

Solid Bleached Sulfate (SBS)

Made purely from bleached chemical pulp. Noted for printability and high-end graphics.

Coated Unbleached Kraft (CUK)

Made of unbleached chemical pulp. Used for strength-driven packaging applications.

Folding Boxboard (FBB)

Made up of mechanical pulp. Aging in couple years.

Coated Recycled Board (CRB)

Made from layers of waste paper or recycled fibers. Used for cost-driven packaging applications.

Single Face Corrugated Board

Single wall corrugated Board

A flute 

1/4”

B flute

1/8”

C flute

11/64”

E flute

1/16”

F flute 

1/32”

The thickness of paper, or caliper, is a measurement in thousandths of an inch of the bulk of the sheet.

True

False

True

Which of the following accurately describes specifying paper weight by basis weight?

a. The weight of one square meter of a single sheet of paper

b. The number of grams of an 8.5—11-in. sheet of paper

c. The measurement of the weight of 500 sheets of that paper cut in the basic size

d. Both “b” and “c”

The measurement of the weight of 500 sheets of that paper cut in the basic size

The bulk of paper is important for press and folding requirements, especially during book production.

True

False

True

Which of the following accurately describes specifying paper weight by grammage?

a. The weight of one square meter of a single sheet of paper

b. The number of grams of an 8.5—11-in. sheet of paper

c. The measurement of the weight of 500 sheets of that paper cut in the basic size

d. Both “b” and “c”

a. The weight of one square meter of a single sheet of paper

The figure shows a paper label for offset printing. What is the grammage of this paper?

a.64

b. 240

c. 216

d. 279

b. 240

Folds made “with the grain” (in the same direction as the cellulose fibers) occur cleanly and easily.

True

False

True

Folds made “across the grain” (perpendicular to the direction of the cellulose fibers) can cause the paper to crack and fold unevenly.

True

False

True

In papermaking, the direction in which most fibers lie that corresponds with the direction in which the paper is made on a paper machine.

Grain 

Folding or feeding paper into a press with the grain of the paper parallel to the blade of the folder or the axis of the impression cylinder.

With the grain

Folding or feeding paper at right angles to the grain direction of the paper.

against the grain

In inches, 25*38 for book papers, 20*26 for cover papers, 22.5*28.5 or 22.5*35 for bristols, 25.5*30.5 for index.

Basic Size 

The weight in pounds of a ream (500 sheets) of paper cut to a given standard size for that particular grade.

basis weight

The thickness of paper, in thousandths of an inch. In board, however, it is expressed as “points.”

caliper

A term in the metric system for expressing the basis weight of paper. It is the weight in grams of a square meter of the paper expressed in g/m2.

grammage

Five hundred sheets of paper

ream