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Glossary Of Terms

Glossary Of Terms

  • Adhesive Bleed

    Adhesive exudation from pressure-sensitive stock (before or after processing) to finished product, as a result of cold flow or clamp pressure

  • Aggressiveness

    A means of comparatively categorizing adhesive products by degree of tackiness and speed with which bond occurs

  • American National Standards Institute (ANSI)

    A private, nonprofit organization in the U.S. that works to develop manufacturing and quality standards across multiple industries. The organization also works with the committees of other nations to develop standards that facilitate international trade and telecommunications.

  • Back Slit

    A cut or slit through the backing sheet of pressure-sensitive markings

  • Calendaring

    A way of manufacturing plastic sheets by first converting the resins into a dough-like mass then passing it between heated pressure rollers to form a sheet of glossy or textured surface

  • Cast Vinyl

    Vinyl sheeting manufactured by coating the liquid compound onto a substrate, usually a polished chrome-plated sheet, where it remains until it sets to form the plastic sheet

  • Cold Weather Adhesive

    An adhesive formulated to be usable at 32⁰ (0⁰ C) or other specified low temperature

  • Face Down

    A decal designed for application to a transparent substrate through which the pattern or design can be observed

  • Face Material

    Any paper, film, fabric, laminate, or foil material suitable for converting into preserve-sensitive decals, normally carried on a backing or support sheet

  • Face Up

    A decal designed for application to an opaque substrate that can be read or observed from the same side as the application surface

  • High Temperature Adhesive

    Adhesive that will enable a pressure-sensitive label to adhere well when applied to a surface that has an elevated temperature

  • Laminating Film

    Usually a clear or transparent sheeting; manufactured for use as a protective top strata of a cold seal or thermal lamination to processed material. Since abrasion resistance and general protection are prime requisites, the more durable polyesters are frequently used

  • Low-Tack Adhesive

    An adhesive with an initial nonaggressive character for ease of application that usually becomes a more permanent bond after 24hours, or other-pre-selected time period

  • Mold Release

    A lubricant that prevents a plastic from sticking to its mold. Also called 'release agent", it can interfere with ink adhesion

  • OEM (Original Equipment Manufacturer)

    OEM, or "Original Equipment Manufacturer" is a term used when one company makes a part that is used in another company's end product. For example, a safety label produced to go on another company's product.

  • OSHA (Occupational Safety and Health Administration)

    A U.S. federal government agency that monitors and enforces workplace safety laws.

  • Outgas

    1. The removal of gases trapped within a solid substance by heating it until the gases escape.
    2. The escape of gases from a solid or liquid which occurs naturally over time.

  • Peel Adhesion

    The force required to remove a pressure-sensitive label from a standard test panel at a specified angle and speed after the label has been applied under specified conditions

  • Permanent Adhesive

    An adhesive with relatively high ultimate adhesion properties

  • PMS (Pantone Matching System)

    A standardized color scheme used in the printing industry to ensure the consistency of color from design to final print.

  • Polycarbonate

    A plastic material with greater impact strength than acrylic. Examples of trade names for polycarbonate include Makrolon and Lexan.

  • Polyester

    A synthetic fiber used for its strength and resistance to ultraviolet deterioration. It does not have the stretch and elasticity of nylon and, as a result, will often last longer.

  • Positionability

    A condition of pressure-sensitive products imposed during their manufacture that permits the initial positioning to be changed during application, or more accurately to be repositioned. A low-tack adhesive, barrier, or mask can be used. In the former, after curing, the adhesive develops aggressiveness.

  • Process Color

    A halftone printing process that uses the four essential ink colors of cyan, magenta, yellow and black (CMYK) to create a full range of colors on a printed surface. (Also called four-color process.)

  • Release Liner

    The component of pressure-sensitive stock that functions as a carrier for the pressure-sensitive label, and protects the adhesive prior to application

  • Removable Adhesive

    A pressure sensitive adhesive characterized by low ultimate adhesion to a variety of substrates

  • Scoring

    Cutting or notching a material prior to bending it. Sufficient scoring of some substrates (glass and some thicknesses of PVC boards, for example) will also allow them to be broken cleanly without cutting them all the way through.

  • Screen Printing

    A stencil method of applying paint or ink to surfaces such as wood, paper, glass and metal, through fabric stretched over a frame. Can utilize a photographic process to create/control the resist for more precise imaging. The artwork is also cut into rubylith resist on computer-driven plotters or tables. (See also silkscreening.)

  • Second-Surface

    An overlay made of a clear substrate, such as acrylic, where the art is applied in reverse on what can be an interior face of the overlay, providing extra protection from the environment

  • Silkscreening

    One of the oldest and simplest forms of printing. A print is made using a squeegee to force ink through stencil or emulsion that is supported by fabric that has been stretched over a frame to create a screen. Several synthetic fabrics have replaced silk as the fabric of choice for screen printers.

  • Solvent

    A petroleum-based liquid used to modify oil-based paints and inks and to remove them from sign components, frames and brushes.

  • Split Face

    Slits in the face of pressure-sensitive products, usually to facilitate removal from the liner

  • Tack

    Surface 'stickiness" to touch, as in pressure-sensitive adhesives designed to adhere on contact.

  • Tamper-Proof Adhesive

    An adhesive that is extremely aggressive to the point where it will not permit the decal to be removed in one piece, thus self-destroying

  • Transfer Tape / Premask

    A medium-tack adhesive coated on translucent paper. Transfer tape is placed on weeded vinyl images still on the original carrier liner; the tack of the tape is stronger than the adhesion of the vinyl to the coated liner, so the image is pulled off the liner in a transfer to another surface.

  • Translucent

    The property of a material such as vinyl, paint or ink that allows the passage of some light through it without being transparent.

  • Transparent

    The property of a material that allows light and images through and may also show a color tint.

  • Ultimate Adhesion

    The mature bond established under controlled conditions between the tacky surface of a decal (or similar) and a substrate. The maximum adhesion possible from a pressure-sensitive adhesive.

  • UV Resistance

    Ability to withstand decay due to the damaging effect of the ultraviolet rays of the sun.

  • Vinyl

    Polyvinyl chloride (PVC) film that, in sign making, is backed with an adhesive that creates a strong bond to a surface when pressure is applied. Many different integral colors are available with adhesives having different levels of aggressiveness (adhesion) for various applications from permanent to semi-permanent to temporary.

  • Weeding / Picking

    The process of peeling extraneous vinyl or matrix way from a plotter cut, leaving only the sections representing the final image. Pulling the extra material away in one quick stroke is known as "rip weeding."