Vocabulary

A

An engraved ink metering roll used in flexographic presses to provide a controlled film of ink to the printing plate.
A substance, such as glue, used to laminate two structures together.
Abrasion

B

A mark printed in an inconspicuous location on a package to identify who the printer of the package is. (ie: the Catty Corporation bug).
A measure of strength of a bond between two adhesives.
The undesired adhesion of two or more plies of material to the extent that surfaces become damaged or distorted, or the inks or coatings transfer from one surface to the other when adjacent layers are separated.
A small raised area, caused by the expansion of trapped gas or other fluid beneath the metal surface. In a lamination, small localized areas free or freed from adhesion.
Where the printing on a piece goes all the way to the edge of the paper – accomplished by printing beyond the margins of the piece and then trimming to the margin.
Is a covering that is applied to the surface of an object, usually referred to as the substrate. In many cases coatings are applied to improve surface properties of the substrate, such as appearance, adhesion, wetability, corrosion resistance, wear resistance, and scratch resistance. In other cases, in particular in printing processes, the coating forms an essential part of the finished product.

C

An undesirable condition caused by uneven rates of absorption or evaporation of moisture, uneven rates of contraction or expansion, or internal stresses in the material. Curl is the most prevalent in laminated structures where the components have differing physical properties.
Tube on which coiled product is wound; usually made of fiber, plastic, aluminum, steel or carton.
The process of converting sheets or rolls of product such as paper, film, and foil to a finished product.
The translation of an original photograph or other artwork into separate plates for four-color printing.
A system of using a spectrophotometer to measure the chroma intensity and mathematically indicate the correction that is necessary to bring the color to an approved standard.
Also chromalin – a proof, which shows the approximate, expected result of a four-color printing, provided by the color separator or printer.

D

The time usually expression in seconds at a given temperature required for the application of heat to seal a heat sealing membrane.
A process of laminating 2 or more substrates together such as paper, film, and foils using 100% solids adhesive lamination.

E

A product formed by pushing material through a die.
The linear stretch of material during tensile loading.
Measurement of tearing resistance by means of a device that tears standard samples and records the required energy. Papers must be tested both along and across the grain and specimens should be conditioned at a certain temperature and humidity prior to testing

F

A rolled aluminum product.
An economical printing method, mostly done on web-fed equipment, in which a rubber roll, partially immersed in an ink fountain, transfers ink to a fine-screened steel roller carrying the design to be printed, which in turn deposits a thin layer of ink on the printing plate. The print pattern is raised and the non-print area is lower. The ink is applied to the raised area of the rubber plate, and then transfers to the material to be printed in the desired pattern. Flexographic printing produces remarkably sharp reproductions of multicolor work, including lettering in small type sizes
The property of a material, which will permit its being bent or twisted without breaking, the state of being non-rigid.
A manufacturing classification of inventory when a good product has gone through the final manufacturing process and is ready for sale to customers.
Method used to ensure that the oldest raw material or finished good is used first to help ensure quality.

G

A process of using either a water-based or solvent-based glue applied to a substrate such as paper, film, or foil to laminate 2 or more substrates together.
A term used in referring to the thickness. Here are some examples and equivalents: 1 mil = 1/1000 of an inch = .001” 1 mil = 25.4 microns 1 micron = one millionth of a meter 1 inch = 25.4 mm = 2.54 cm 100 gauge = 1 mil 80 gauge = 8/10 mil = .0008 inches

H

The ability of a freshly made seal to resist puckering, or separating when stressed
Marks on printed material caused by dirt or foreign material during the printing process
A coating on a material, which allows that material to be laminated to a second material with a surface that when heat is applied the two materials will bond together. The bond strength is such that the materials will be destructed if one tries to peel apart the two. Also called a “destruct bond”.
A plate or cylinder or printed piece or process involving the shooting of artwork through a lined screen, which breaks up the art into a dot pattern.

I

In The Round polymer. –Used in Flexographic printing, when graphic design is needed to be continuous, and cannot utilize a plate break. Also known as Seamless.

J

K

Also called mechanical. This is the guide used in making plates or engraving cylinders, and printing a piece – a diagram of copy and art for reproduction.
Japanese term used frequently when describing Lean Manufacturing which translates to “change”. A term that is often referred to as a Kaizen Event meaning a team working together to produce a change in a process that would yield savings

L

Solid black line artwork, which does not require half-tone reproduction
A rendering of a proposed printed piece, indicating positions for headings, copy, art and borders. May also indicate color treatments
Composite product consisting of two or more sheets or films joined together, with glue, adhesive, wax, etc.

M

Moisture Vapor Transmission Rate Water Vapor Transmission Rate, (also known as WVTR water vapor transmission rate), which moisture vapor can permeate through the structure and into a dry atmosphere on the other side. It is recorded in units of gm/100 inches square/24 hour (g/m2/24hr). WVTR is dependant on the gauge of the structure, the materials used in the structure, and the quality of the materials used. Vapor can pass through channels in the seals, holes, tears, or imperfections in the package.
1 kilogram (kg) = 2.2046 pounds 1 meter = 39.37 inches = 1.0936 yards 1 pound = 0.4536 kilograms 1 mile = 1.6094 kilometers 1 short ton = 2000 pounds 1 yard = 0.9144 meter 1 kilometer = 0.6237 miles 1 mil = 1/1000 of an inch = .001 1 mil = 25.4 microns 1 micron = one millionth of a meter 1 inch = 25.4 mm = 2.54 cm 100 gauge = 1 mil 80 gauge = 8/10 mil = .0008 inches
The temperature at which a solid compound goes to the liquid state.
Also known as mother reel. A finished roll that comes off the press.

N

O

Oxygen Transmission Rate, is defined as the constant rate at which oxygen permeates through a film at specified conditions of temperature and relative humidity. Values are expressed in cc/m2/24hr (SI units). Standard conditions are 230C and 0%RH.

P

Also four-color process – Indicates the four-color plates or cylinders commonly used in color printing. Usually of photographic quality
Standard, numbered shades and colors and may be selected when a specific background or accent color is desired. The Pantone Matching System is an international printing, publishing and packaging color language providing an accurate method for the selection, presentation, specification, communication, reproduction, matching and control of color.

Q

R

1.) Printing an image on the back of a transparent material so that when viewed from the front the image is correct. 2.) Laying down a printed background on an opaque surface, leaving certain design areas open.
A manufacturing classification of inventory before the material is put into the manufacturing process and when components are in their “raw” state
Runs of less then full production quantity to verify that new products or process meet or exceed the expectant or desired results also know as a Trial.

S

Measurement of force required to break or destroy a heat seal formed by any of the heat sealing sheets.
An extra amount of either raw materials or finished goods carried in inventory to protect against late deliveries or inaccurate forecasts
A construction that has been laminated; such as foil laminated to paper
A device that measures color using a spectral reflectance and data set. It generates values to describe color quantitatively
An ink system that uses a solvent (petroleum-based product) as its vehicle to contain pigment, resin, and other components.
The cutting of a large master roll into small rolls used.

T

To compensate for registration variation, two adjacent colors must spread or overlap, usually the lighter color will overlap into the darker color
Allowable deviation from a nominal or specified dimension
Measurement of weight required to break a strip of paper or paperboard in kilograms. Measurement is in pounds per square inch for metal
Transverse slipping of successive layers of a coil so that the edge of the foil is conical rather than fla
A measure of how likely a substrate will continue to tear once started. Tear strength will differ with and against the grain (in the case of

U

Unit of measure.

V

The property of material to resist flow. The higher the viscosity generally the thicker or slower a material flows.
The series of steps required to bring a product or service to the customer.

W

Items between machines waiting to be processed.
Water Vapor Transmission Rate, (also known as MVTR moisture vapor transmission rate). See definition under MVTR
A process of laminating 2 or more substrates by using an adhesive that is liquid at the time of nip point. Wet bond lamination is only used when the adhesive can be dried through at least 1 of the substrates (such as paper).
A printing press which has a rotary action, and uses large rolls of paper, foil, and/or poly.
An ink system which uses water as the majority medium to combine all components. Typically water based ink systems can contain as much as 5% solvent and still be considered water-based.

X

Color correction system utilizing a spectrophotometer to measure the variation in chroma intensity

Y

The square inches per one pound of a material. For example, if one pound of material has 41,000 square inches, then 100 pounds of the same material will have 4,100,000 square inches. Formulas: Total square inches = pounds Yield Total square inches = yield Pounds Pounds x Yield = Total square inches

Z

Flexible
packaging
for you

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