Glossary

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NAMEPLATE

Describes a label product generally manufactured of metal of other material designed to withstand exposure to adverse conditions. Usually contains information such as serial numbers of components, electrical requirements and are generally affixed to products utilising a permanent adhesive.

NATURAL AGING

The change in a material occurring when it is exposed to normal environmental conditions.

NATURAL RUBBER - NEOPRENE

Coagulated latex obtained from rubber trees and shrubs. Sometimes used as base for adhesives and coatings. It has a very low compression and permanent set and good resistance to cold flow.. Sunlight, oxygen and ozone resistance is not as good as that of most synthetic rubbers. Refer LM specification sheets.

NEGATIVE

A photographic image of originals on paper, film or glass in reverse from that of the original copy. Dark areas appear light and visa versa.

NEGATIVE IMAGE

A reversed image.

NEOPRENE RUBBER

A polymer of chloroprene, it is used as an adhesive base. Commonly used where oil and petrol resistance is required. Resistance to swelling action of aromatics (pure, and in fuels), is poor, but much better than natural rubber. Also used to coat doctor or metering rollers.

NIP

Line of contact between two (2) rollers. Often referred to as the pull or draw rollers on a web press.

NIP

Non Impact Printing. Printing carried out by spraying ink onto the substrate.

NIP ROLLER - See NIP

NOMINAL SIZE

The standard size for a bar code symbol. Most codes can be used over a range of magnifications, commonly from 0.8- to 1.20 nominal.

NON-BLOCKING

Refers to an applied adhesive that will not adhere to other surfaces under normal storage conditions.

NON-FLAMMABLE

Not readily combustible. The opposite of flammable.

NON-ORIENTED FILM

Film which has not been subject to stress to align the polymer chains and improve properties.

NON-POLAR

Having no concentrations of electrical charge on a molecular scale, incapable of significant dielectric loss. Examples among resins are polystyrene and polyethylene.

NON-PRIME LABEL

A label supplying supportive information to a product or performing any other function.

NON-READ INK

Any ink with a sufficiently high reflectance to prohibit detection by an optical scanner. Non-read inks are used as visual guides that do not interfere with data reading.

NON-RETURNABLE CORE

Biodegradable. A disposable core composed structurally so as to make it suitable for one-time use.

NON-VOLATILE

Refers to the portion of an adhesive, coating or sealer that does not evaporate or vaporise at relatively low temperatures.

NON-WOVEN MATERIALS

Usually refers to paper ‘tissues’ or synthetics like rayon.

NUMERIC

A machine vocabulary that includes only numbers as contrasted to alphanumeric which includes both letters and numerals.

NYLON

DuPont’s trade name for a strong plastic film which has high oil and gas resistance, used as filament in strapping tapes, with high impact resistance.

NYLOPRINT

BASF’s trade name for photopolymer plate material.