Materials Science

Materials Science

Glossary

GLOSSARY

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German – English Terms

From A to Z. English technical term small above the German one.

All technical terms of the course from A to Z. On each card, the English technical term is written small at the top, followed underneath by the German term and its explanation.

A

Press proof

Proof

Proof print on the actual printing press and paper prior to the print run.

B

BLUE ANGEL

Blue Angel

German ecolabel; for paper, it stands for 100% recycled paper and strict manufacturing guidelines.

BLANK DUMMY

BLUE ANGEL

dummy sample

Unprinted dummy in the actual material, format, and extent; demonstrates the feel, weight, and folding behaviour prior to printing.

BLIND EMBOSSING

Blind debossing

Embossing without ink or foil; the design is created purely by the relief in the paper.

LETTERPRESS

letterpress printing

Letterpress printing with a raised printing plate; a tactile deboss is created on thick card.

Thu

DIGITAL PRINTING

Digital printing

Printing directly from data without a fixed printing plate; ideal for short runs and personalisation.

F

SECTION SEWING

Thread stitching

Binding method in which folded sections are sewn with thread; highly durable and opens flat easily.

PAINTED EDGES

Sprayed edges

Coloured edges of a book block or a thick card.

FLEXOGRAPHY

Flexographic printing

Flexographic printing with flexible printing plates; standard for packaging, bags and labels.

FSC certification

FSC

Label for wood and paper from responsible forestry, in the categories 100%, Mix and Recycled.

G

COATED PAPER

Coated paper

Paper coated with pigments; smooth and suitable for sharp, brilliant images.

GRAMMAGE

Grammage

Grammage of paper in grams per square metre (gsm or g/m²).

H

Hot Foil Stamping

Hot foil stamping

Transfer of a metallic or coloured foil using a heated die.

WOODFREE

Wood-free

Wood-free paper made from chemical pulp; brighter and more resistant to ageing.

K

BOARD

Cardboard box

Thicker, stiffer material, roughly between 150 and 600 g/m²; above that, it is referred to as paperboard.

LAMINATION

Lamination

Applying a film or paper to a sheet; provides protection, but often makes recycling more difficult.

PERFECT BINDING

Perfect binding

A binding method where the sheets are milled along the spine and glued to the cover.

Kraft paper

PERFECT BINDING

Kraft paper

Tear-resistant, usually brown paper made from long cellulose fibres; typical for bags and packaging.

Cross fold

Cross-fold

A folding method where each subsequent fold is at a right angle to the previous one.

L

GRAIN DIRECTION

Direction of travel

Direction in which the paper fibres predominantly lie; paper folds better parallel to this.

M

MATERIAL LIBRARY

Material library

Custom, labelled collection of paper, print and finishing samples.

N

UNCOATED PAPER

Uncoated paper

Uncoated paper with an open surface; tactile, easy to write on, colours appear softer.

O

OFFSET PRINTING

Offset printing

Indirect planographic printing via a rubber blanket; precise and cost-effective from medium print runs onwards.

OPACITY

Opacity

The opacity of paper expressed as a percentage; the higher the value, the less show-through there is.

P

PAPER SHADE

Paper clay

Colour tone of the paper, such as bright white, natural white or chamois; influences all printing colours.

EMBOSSING

Embossing

Forming a relief in paper using a punch and counter-punch.

Contract proof

Proof

Colour-accurate contract proof conforming to industry standards, simulating the final print result.

Dot gain

Dot gain

Enlargement of the halftone dots during printing, also known as dot gain; more pronounced on uncoated paper.

PUR BINDING

PUR perfect binding

PUR (polyurethane) adhesive binding; exceptionally durable and lies flat easily.

R

RECYCLED PAPER

Recycled paper

Paper that is made entirely or predominantly from recycled paper.

CREASING

Grooves

Pre-creasing a fold line so that cardboard and heavy papers do not crack when folded.

RISOGRAPHY

Risograph printing

Stencil printing with one ink drum per colour; affordable, grainy and vibrant.

SPINE WIDTH

Spine width

Spine width; calculated from the number of sheets, paper weight, and bulk.

SADDLE STITCHING

Saddle stitching

Folded sheets gathered inside one another are stitched with wire staples along the fold.

SHORT GRAIN / LONG GRAIN

SADDLE STITCHING

Short grain and long grain

Specification of the grain direction on the sheet: short grain (SG) runs parallel to the short edge, long grain (LG) parallel to the long edge.

S

SCREEN PRINTING

Screen printing

Screen printing through a fine mesh; opaque colour on almost any material.

SPOT COLOUR

Spot colour

Pre-mixed printing ink, such as Pantone or HKS, instead of a CMYK mix.

DIE CUTTING

Die-cutting

Cutting out a shape or contour using a cutting die.

U

Spot UV Varnish

Spot UV varnish

Spot gloss varnish that cures under UV light to highlight individual elements.

V

BULK

Volume

Ratio of paper thickness to basis weight; bulk 1.0 means: 100 g/m² paper is 0.1 mm thick.

W

Roll fold

roll fold

A folding style where the panels are folded inwards one after another; the inner panels are slightly narrower.

Wire-o binding

Wire-o binding

Twin-wire binding through punched holes; lies flat and folds back.

Z

CONCERTINA FOLD

concertina fold

A folding method with alternating, opposing folds like an accordion; also known as an accordion or concertina fold.

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