The degree to which a label surface, including printing and protective coatings, is able to resist rubbing or wearing from friction. Also referred to as “rub” or “scuff” resistance.
That property of a porous material which causes it to consume liquids or vapors.
When one substance penetrates into the mass of another.
To speed up the progress of an event. A few ways this can be achieved are by using heat, fast drying solvents, or increasing the volume of air.
The test procedures for subjecting label materials to special environmental conditions in order to predict the course of natural aging, but in a far shorter period of time.
A material added to a liquid compound to convert the whole mass into a solid, or speed up its cure. Accelerators differ from catalysts in that they participate in the reaction and lose their chemical identity as a result.
A plastic synthesized from cellulose dissolved in acetic acid which exhibits rigidity, dimensional stability and ink receptivity. Transparent or matte films, sometimes used for label stocks.
A clear film made from cellulose acetate.
A general chemical term of a particular family of thermoplastic resins based on acrylic acid and its derivatives.
A pressure-sensitive adhesive based on high-strength acrylic polymers. It can be coated as a solvent or emulsion system.
Water-based latex made with acrylic polymers. It is used in coatings and adhesives.
The sticking together of two surfaces by adhesion.
The substance or surfaces to which the adhesive is applied; the surfaces which are bonded together.
An increase in the peel adhesion value of a self-adhesive material after it has been allowed to dwell on the applied surface.
Any of a variety of test methods used to determine the adequacy of ink, coating or adhesive adhesion to a substrate.
The state in which two surfaces are held together by interfacial forces. Measure of the strength with which one material sticks to another.
Adhesion cause by the physical interlocking of the adhesive with base surface irregularities of the adherend.
The measure of the force required to remove a material from another surface at a specified angle and speed, after the material has been applied under specific conditions.
A measure of the time required to slide a specific sized area of a pressure sensitive label material from a standard flat surface in a direction parallel to the surface. Weight and heat are sometimes used to speed up the test.
The adhesion to a specific surface.
The mature or final bond achieved, under controlled conditions, between ink, coating or adhesive to any flexible or rigid substrate.
A substance capable of holding materials together by surface attachment.
Adhesive ooze or flow from pressure sensitive label stock or labels as a result of cold flow. Also referred to as edge ooze or halo.
The undesirable transfer of adhesive from label material to machinery parts during conversion or application.
See adhesive residue.
The pressure sensitive adhesive remaining behind on a surface due to cohesive or priming failure when a pressure sensitive label is removed from that surface. Also referred to as adhesive deposit or adhesive transfer.
The absence of adhesive in some areas of film or paper label stock.
Failure within the adhesive mass when labels are under stress or removed. If splitting occurs, part of the adhesive will remain on the labeled surface and part on the face material.
When adhesive penetrates through the face material of a pressure sensitive lamination.
The transfer of adhesive from its normal position on the label to the surface to which the label was attached.
ADHESIVE, COLD TEMPERATURE
An adhesive that will induce a bond to cold surfaces in a cold environment.
ADHESIVE, HIGH TEMPERATURE
An adhesive that will enable a label to withstand sustained elevated temperatures, usually 200 degrees F or higher.
An adhesive characterized by relatively high ultimate adhesion. Sometimes it can be removed when the degree of force used overcomes its bonding ability but generally it is not removable.
ADHESIVE, PRESSURE SENSITIVE
A type of adhesive which in dry form is aggressively tacky at room temperature. It has the capability of promoting a bond to dissimilar surfaces on contact, with pressure.
An adhesive characterized by relatively high cohesive strength and low ultimate adhesion, so it can be removed easily from most surfaces. Some adhesive transfer could take place depending on the affinity of the adhesive to the surface.
An attraction or polar similarity between adhesive and adherend.
The force required to remove a release liner from an adhesive after a measured period of time, often at elevated temperatures.
The change or changes undergone by a material as a result of the passage of time.
Forced (usually heated) air drying of coatings or inks.
A group of organic solvents widely used in flexographic inks.
Refers to the relative alignment of the printing stations to each other and to the die stations on a label press. The relative position of a scanner or light source to a bar code.
Term describing the appearance of an adhesive, coating or sealer film that is cracked into large segments.
A term used to denote the temperature of the surrounding air.
The separation of a substance or mixture of substances into the component parts, so that a knowledge of the percent composition can be obtained.
A coating applied to the surface of a substrate to affect the adhesion of subsequent coatings. Also called primer, tie coat or pre-coat.
The specific adhesion of a pressure sensitive adhesive to a face material or an anchor coat.
In flexography, a two roll inking system consisting of a smooth roll which dips in an ink trough and transfers the ink to an etched metal or ceramic roll with wells of fixed volume that transfer the ink controllably to the printing plate.
Engraved metal or ceramic metering roll used in flexo presses to meter a controlled film of ink from the contacting rubber covered doctor roller to the printing plates which print the web. Volume of ink is affected by the cell count per linear inch and dimension of the cell and cell wall of the engraving.
The American National Standards Institute (ANSI) is a private organization responsible for the development of voluntary industry standards. ANSI sets safety standards for many types of products, and those standards often include procedures for labeling that include hazard and precautionary statements. ANSI also sets standard for barcode printing and verification
Agents which retard the action of oxygen in substances subject to oxidation.
Ingredients in coatings that make the coating antistatic.
Coatings applied to one or both surfaces of a substrate to reduce the electrostatic build up so that the material can be further processed, I.e. sheeted and stacked.
ANVIL CUT LABELS
A pressure sensitive label which has been die-cut through all components of the label stock, including liner material; steel-to-steel cut; metal-to-metal cut.
Hardened steel roll upon which the bearers of a rotary die cutter ride which also provides the hardened surface for die cutting.
Refers to a pressure sensitive label actually being adhered to a product.
The temperature of a substrate or label material at the time the label will be applied. All adhesives have a minimum application temperature rating. Temperature can be a factor in the design of labels that will be used in hot or cold environments.
A device or machine that automatically feeds and applies pressure sensitive labels to a product.
Inks produced utilizing a water base.
Refers to adhesive or inking systems which use water as the carrier or vehicle.
The accelerated testing of specimens to determine the change in properties, carried out over a short period of time. Such tests are indicative of what may be expected of a material under actual service conditions over extended periods.
Traditionally, the original design including drawings and text produced by the artist. All elements of the design from which the black and white art and printing plates are made. Also refers to all elements of the black and white production art. Today, the artwork is almost always a computer file.
The character set and code described in the American Standard Code for Information Interchange, ANSI X3.4-19777. Each character is encoded with 7 bits (8 bits including parity check) and is used for information interchange between data processing systems, communications systems, and associated equipment. The ASCII set consists of both control and printing characters used in printing bar codes.
The ratio of the height of a bar code symbol to its width.
ASSET ID LABELS
Labels or tags used to speed the regular inventory of capital assets and provide a timed log of that inventory. These are manufactured to a variety of specifications defined by the product owner. Bar code type, background color, sequencing, laminating, and die cutting are all options.
ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally company that develops and delivers voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world, and many are used directly or indirectly in the label converting industry.
A pressurized, steam heated vessel generally used for sterilization. Labels used in autoclave environments must be designed to withstand superheated steam under pressure.