Paper and cardboard

Paper is one of the oldest materials used for packaging. There is evidence that during the Tang Dynasty in China, it was even used to make tea bags! Paper is made by compressing a thin layer of cellulose-containing fibers. The first machine for paper bags production was invented in 1868 by the American inventor Margaret Knight
“Cardboard” is a generic term for heavy duty paper. Usually, cardboard is a paper with grammage, or paper density, over 200 g/m². 

The grammage (also called basis weight) is a technical value that shows how many grams one square meter of flat material such as paper, cardboard, foil or fabric weighs. It is measured in grams per square meter - g/m² or gsm.

Extrapack uses the following kinds of paper:

Brown Kraft (recycled)

Fully certified by FSC® and 100% Recycled, this paper is a good choice for organizations that are concerned about nature conservation.

Grammage: 40, 80-100 g/m²

Used for:

White kraft

This paper gives bags strength and a natural feel. It can be FSC® certified.

Grammage: 40, 90-120 g/m²

Used for:

Ribbed Kraft Paper

Slightly wavy surface on one side of the paper gives it a more hardness and strength.

Grammage: 120 g/m²

Used for:

One-side coated kraft paper

One side of this paper is treated which allows for better print quality. It can be FSC® certified.

Grammage: 130 g/m²

Used for:

Art paper

Two side coated glossy surface of this paper is suitable for high quality offset printing and subsequent lamination. It can be FSC® certified. Art paper is the best-known paper for luxury bags because it strikes an optimal balance between price and quality.

Grammage: 170 g/m² or 250 g/m²

Used for:

Luxury cellulose cardboard

This paper type is distinguished by its stiffness and superior folding capabilities. A popular brand is Carta Integra.

Grammage: 170 g/m² or 235 g/m²

Used for: