Glossary

Anti-blocking inhibitor

component added to the adhesive to prevent labels from sticking together in the roll.

Anti-UV

treatment or pigment that absorbs ultraviolet radiation to protect the ink or substrate.

Autoclavable label

Stable label after autoclave heat treatment, used in medical and laboratory settings.

Barcoding (barcode)

linear graphic code for optical data reading (EAN-13, Code 128, GS1).

Batch

a set of units produced or printed simultaneously, often with a batch identifier on the label.

Bleed area

additional area (typically 2-3 mm) around the printable artwork to ensure the print covers the entire material after trimming.

BOPP (Biaxially Oriented Polypropylene)

plastic film used as a label substrate for its resistance to moisture, tearing, and solvents.

CMYK / Four-color process

cyan, magenta, yellow, black color mode used for color printing of photorealistic labels.

Coated / uncoated paper

paper with (or without) a coating for printing; the coated version offers better visual quality.

Cold-foil

A printing process involving the transfer of metallic foil onto the label by pressure, to achieve a shiny gold or silver effect.

Conductive adhesive

specialized adhesive used for electronic or contact identification applications.

DataMatrix Code / QR Code / 2D Code

two-dimensional matrix codes containing extensive information (serial number, URL, batch, date).

Dicing (matrix cutting)

mechanical separation of individual labels from a continuous liner matrix.

Die-cutting

Label die-cutting into a specific shape (round, oval, special cut) using a die.

Digital Tracking

Real-time tracking of the tag or product via connected systems (RFID, IoT).

Dot gain

the enlargement effect of ink dots during printing, which can make fine elements less precise.

Flexible backing

flexible backing (plastic film, paper) used on curved or irregular surfaces.

Flexographic printing (flexo)

a printing method using flexible relief plates, often used for large runs of roll labels.

Flexo printing plates

flexible plate used to create a raised area for flexographic printing.

Fluorescent / Infrared

inks visible under UV or infrared light, used for security or control effects.

Fluorescent tracer / fluorescent ink

ink visible only under UV light, used for verification or security.

Gravure printing (rotogravure)

rotary printing technique using engraved cylinders, for very large color print runs.

Gummed backing

Water-activated (gummed) label. Used for manual application to surfaces.

High-density polyethylene (HDPE) / low-density polyethylene (LDPE)

plastic support materials suitable for various industrial applications.

IC (Integrated Circuit)

microchip embedded in an RFID tag or a smart label for information storage.

Imposition

layout of labels to be printed on the medium (number of columns, margin, repetition) to optimize production.

Indirect thermal printing

thermal transfer printing (ribbon + thermal printhead).

Industrial Inkjet Printing

contactless process, used for continuous personalization or small batches.

Lamination

Lamination of two layers (films, papers) to create a composite material (e.g., paper + film).

Lamination

applying a plastic film (matte, glossy, satin) to the label for additional protection.

Lamination

application of a protective film (matte, glossy) to the label after printing.

Laser marking

laser engraving/marking on the label or product for high precision and permanence.

Laser printing

precise, contactless technique, requiring no liquid ink or ribbon.

Latex (printing)

printing process using latex inks, offering durability and odorless printing.

Metallized Materials

films or papers covered with a thin metallic coating (aluminum, silver) for decorative or security purposes.

Micro-perforation

small hole or series of micro-perforations to facilitate tearing or material breathability (useful on textile labels).

Micro-QR code

Ultra-small QR code that can be engraved/printed on a label for detailed traceability purposes.

Micro-row

A very small row of dots or data printed on the edge of a label for automatic alignment.

NFC (Near Field Communication)

technology similar to RFID, enabling short-range reading between the tag and a smartphone.

Non-wovens

material, often textile or felt, used for textile labels or flexible surfaces.

Optical security

visible or invisible elements (UV, microtext, holograms) integrated into the label for anti-counterfeiting protection.

Pantone / color chart

standardized color matching system, used to ensure color accuracy on labels.

Permanent adhesive

adhesive that, once applied, cannot be removed without damaging the label or the substrate.

Polyester film (PET)

Durable film, used as a label substrate for extreme applications (chemical, electronics industries).

Polyethylene (PE) film

flexible film, often used for curved surfaces such as pipes, flexible bottles.

Polyethylene terephthalate (PET) film

sturdy support, often used for demanding environments.

Polypropylene

A PP plastic material widely used as a substrate for flexible labels, resistant to moisture and solvents.

Printable IC

thin and flexible chip that can be embedded under the printable layer of a label.

PVC film

rigid or flexible plastic film, used for durable exposed labels.

Register marks

printed marks for precise label alignment during rewinding / slitting.

Removable adhesive

adhesive designed for clean label removal without leaving residue.

Repositionable adhesive

adhesive allowing repositioning without damaging the label.

Resin (resin ink)

Ink highly resistant to chemicals, abrasion, and heat, primarily used in high-end thermal transfer applications.

Rigid backing

Non-flexible backing (cardboard, rigid PVC) used for labels on hard products.

Rollover

mechanism or rewinding to maintain label roll tension during printing.

Scratch-resistant varnish

reinforced varnish specially formulated to resist mechanical abrasion.

Screen printing

screen printing method for specific substrates, sometimes used in large-format or specialized labeling.

Selective / Spot Varnish

Applying varnish only to specific areas of the label (logo, design) for protection or visual effect.

Self-adhesive backing

adhesive liner onto which the label is applied.

Sensitivity

Reactivity measurement of a material (substrate or adhesive) under stress or temperature change.

Siliconized base

non-stick layer (paper or film) protecting the adhesive side of the label before application.

Smart label (smart label / IoT label)

label integrating circuits, sensors, or connected chips to collect data (temperature, geolocation).

Solvent

liquid used to dissolve certain inks or adhesives, which may damage unsuitable surfaces.

Solvent inks

Organic solvent-based inks, suitable for challenging substrates (plastic, PVC, PE).

Tactile (embossing)

Embossing or raised relief applied to the label for visual effect or tactile recognition.

Tamper-evident

label technology that tears or indicates it has been tampered with, ensuring product integrity.

Thermoprint

another term for direct thermal printing.

Traceability ranking (track & trace)

A system for continuous recording and monitoring of a product's journey from manufacturing to point of sale.

Unwinder

printing equipment that unwinds the media roll before printing or application.

UV Inks

UV-curable inks, offering excellent resistance to extreme conditions.

UV Varnish

UV-cured varnish, protective and resistant.

Water-based inks (aqueous)

more eco-friendly inks, often used for paper media.

Wax / Wax-Resin / Pure Resin Ribbon

Types of thermal transfer ribbons, classified by durability / adhesion.

Weeding

Removal of peripheral waste around the labels to retain only the precise shape of the label.

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