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- Amber
- A brown color of glass or plastic containers used primarily to protect the
contents of the container from exposure to light.
- Application Cap
- A closure designed to be used to apply the contents of a container.
- Artwork
- An original design intended for reproduction.
- Bail
- A metal wire formed into a semi-circle to serve as a container handle.
Ends fit into the ears on a general line can.
- Bead
- The depressed or raised circles or rings in the top of a closure. Also
known as a rounded depression around the surface of a container or end; used
to stiffen or improve its appearance.
- Blow Molding
- A method of fabrication in which a warm plastic parison (hollow tube) is
placed between the two halves of a mold (cavity) and forced to assume the
shape of that mold cavity by the use of air pressure.
- Buttress Thread
- A design of thread profile (cross-section) which takes the form of a right
triangle or slight modification of that form. It is usually positioned so
that the right angle is at the bottom of the thread cross-section and
adjacent to the neck of the bottle finish. The horizontal leg of the right
triangle is the bearing surface for a matching cap thread.
- Can Dimension
- The dimensions of a can expressed in inches and 1/16. Example: a 401x411
can has a 4 1/16" diameter and is 4 11/16" tall.
- Capacity
- The amount of space inside a container provided for a given amount of
product.
- Carboy
- A largeware container used principally for acids and chemicals.
- Chuck
- Component of a capping machine.
- Closedhead Drum
- Refers to a drum type container which is supplied to the customer with the
top and bottom ends seamed to the body. Also called a tight-head drum.
- Closure
- A termed used to describe a metal or molded cap which effects a primary
seal when properly applied to a container for the purpose of retaining the
contents and preventing contamination thereof.
- Coating
- A layer of varnish, lacquer or other organic material which has been
applied in fluid form and dried and united with or adhered to the surface of
the closure.
- Composite Can
- A can having a fibre body composed of a composite of paper (label and
liner could be aluminum foil or plastic), and one or both ends made of
metal.
- Copolymer
- A material whose chemical structure is made up of long chains of two
differently structured chemical units (monomers), which repeat a more or
less regular pattern in the chain.
- CT Closure
- A continuous thread design that begins near the bottom of the closure
skirt and continues upward toward the liner with the correct number of turns
depending on the closure size designation.
- Density
- Weight per unit volume of a substance, expressed in grams per cubic
centimeter, pounds per cubic foot, etc.
- Drop Test
- Any test method in which the article being tested is dropped in a
specified manner for a specified number of times or until the article fails
from impact.
- Dropper Cap
- A bottle closure that includes a dropper and a rubber bulb attached.
- Ears
- Parts soldered, bumped, or riveted to the side of a can to which a
carrying bail is inserted.
- Embossing and Debossing
- Creating a design on the surface of a container or closure by raising the
letters through pressure dies. Debossing is lowering portions of the surface
in a like manner.
- EVOH
- Ethylene vinyl alcohol copolymer. A high-barrier plastic resin used in
packaging.
- "F" Style Can
- A rectangular base general line can fitted with a screw cap. "F"
style originated as a specific closure.
- Finish
- The material surrounding the neck opening of any container which is
designed to accommodate a specific closure.
- Fitment
- A device used as a part of a closure assembly to accomplish a certain
purpose, such as a dropper, sprinkler, powder shaker, etc.
- Fittings
- Any parts other than ends necessary to complete the closure of a can,
i.e., rings, plugs, screw necks, or caps and spouts.
- Flash
- Extra plastic attached to a molding along the parting line; it must be
removed before the part can be considered finished.
- Flame Treating
- A method of rendering inert thermoplastic object receptive to inks,
lacquers, paints, adhesives, etc., in which the object is bathed in an open
flame to promote oxidation of the surface of the article.
- Flat Top
- A cap or shell in which the top is perfectly straight across its entire
diameter, without a bead or design.
- Flint
- A term used to describe a glass color which is clear and transparent.
- Flowed-In Gasket
- Gasket formed by flowing a liquid material (vinyl or latex) directly into
a gasket groove and curing in place, usually by baking.
- Fluorination
- A process to reduce permeability and improve the chemical resistance of
various plastics and elastomers. When fluorine gas is brought into contact
with a polymer, its molecular structure is altered on all exposed surfaces.
- G-Cap (G-450)
- A 70 millimeter closure with a deep screw threaded skirt.
- Head Space
- The space between the level of the contents in the neck of a container and
the closure. It is intended to furnish room for expansion of product due to
heat or other action after packing.
- Heat Transfer Label
- A label applied to a container by transferring the label, preprinted on a
substrate, to the container surface.
- Inner Seal
- An additional seal applied to the land area of the finish prior to, or
during the application of the closure.
- Injection Blow Molding
- A two stage process where a preform or parison is injected molded. The
bottle finish is formed at this time. The preform is then transferred to a
blow mold where the bottle takes its final shape.
- Linerless Closure
- A closure, usually plastic, that is designed to seal with no liner.
- Lithographing
- A printing process used to decorate metal cans and caps. The printing is
applied on flat sheet metal and involves employment of metal plates. The
metal to be printed passes over the plate and the desired design is
transferred to the sheet metal.
- Lug Cover
- A type of cover commonly used on open head 5 gallon steel pails. The pail
cover is lined with a puff type compound which seats on the top rim of the
pail The seal is effected by compression of the cover to the pail. The seal
is maintained by clinching the lugs, which are an integral part of the
cover, to the pail rim.
- Mil
- Unit of measurement being .001 inch.
- Mold Cavity
- The hollowed-out portion of a set of molds that will be used in shaping a
container as it is formed on a bottle machine.
- Multi-Layer Bottles
- Multi-layer bottles are composed of layers of selected plastic materials
which are co-extruded to retain and utilize the unique characteristics of
each material. The purpose is to improve the barrier qualities of the
container which leads to a longer product shelf life.
- Narrow Mouth (N/M)
- The finish of a glass container that is small relative to the diameter of
the body.
- Natural Color
- A term used to describe the natural material of a plastic container or
closure which is translucent.
- Neck Ring
- The part of the mold equipment which forms the finish of a bottle.
- Offset Printing
- A printing technique in which ink is transferred from a reservoir to a
printing plate; from the inked printing plate the image is printed on a
cylindrical rubber roll (blanket) and then onto the object being printed.
- Orifice
- Generally, an opening in a dispensing closure or fitment from which the
product is dispensed.
- Overcap
- A cap (normally plastic) which is provided with some open-top cans and is
used to cover the open end once the can has been opened. This term is also
used to describe a cap which is used to cover the primary closure, sprayer
or other dispensing system such as finger tip sprayer or aerosol valve.
- Pail
- A flaring or tapered body container quipped with a bail or handle. A
variety of top closures are used.
- Paneling
- Distortion (side wall collapse) of a container occurring during aging or
storage, caused by the development of a reduced pressure inside the bottle.
- Parting Line
- Mark on a bottle where halves of the mold meet in closing.
- Programming
- A process for changing the size, weight or wall thickness of the parison
mechanically during its formulation.
- Sealing Surface
- The lip portion or land area of the bottle finish that makes contact with
the sealing gasket or liner and forms a seal.
- Shelf Life
- The period of time during which a product can be stored under specified
temperature conditions and remain suitable for use.
- Side Seam
- The seam joining the two edges of a blank to form a body.
- Sifter Fitment
- A plastic component which is part of a package closure system that is
deigned to allow the product to be dispensed by shaking.
- Silk Screen Printing
- This method, in its basic form, involves laying a pattern of an insoluble
material in outline on a finely woven fabric, so that when ink is drawn
across it, it is able to pass through the screen in the desired area only.
- Sleeve Labels
- Printed polyethylene slip-on labels that can be applied to a plastic
container.
- Surface Treating
- Any method of treating a plastic so as to alter the surface and render it
receptive to inks, lacquers and adhesives, such as chemical, flame or
electronic treating.
- Therimage
- Registered trademark of Dennison Mfg. Company. A gravure decorating
process for plastic containers which transfers the image of a label or
decoration to the object under the influence of heat and pressure. Permits
application of multi-color graphics, in one pass, to a wide variety of
plastic containers.
- Tinplate
- Steel plate (canmaking quality black plate) to which a specified weight of
pure tin is applied by an electrolytic or hot dip tinning process.
- Tolerance
- A specified allowance for deviation from standard specifications or
dimensions.
- Torque
- The amount of circular force applied to a closure to seal or open the
container.
- Wide Mouth (W/M)
- Containers with large finish opening or those that have a large finish
size in relation to capacity.
- Window Stripe
- A transparent vertical stripe on a molded opaque bottle.
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