Manufacturer of

Rigid Setup Boxes,

Trays, & Folding Cartons

Innovative Solutions  Better Design Better Packaging

Glossary of Terms

Please see some commonly used terms that are critical to the packaging industry in order for us to help you achieve your packaging needs. 



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Glossary of Terms

Artwork (Camera-Ready)

Final drawings or stats in high contrast black and white, used to reproduce the image with all blemishes and imperfections removed. 

Automatic Bottom

Carton (auto-bottom) 

A pre-glued folding carton bottom construction having multiple folded flaps which position themselves to form a composite bottom panel when the carton is erected. 

Beers style 

Folding box with each piece having 4 corners scored & glued for fold-down storage and easy set-up

Black vat 

Recycled paperboard that is dyed black throughout


Unfinished, flat sheet of board.  In set-up boxes, blank is a diecut or scored and corner-cut flat, ready to be formed into a box


To print the area beyond the cut edge


A heavy weight sheet of paper or other fiber substance (from 0.012 to 0.030 inches and up)


(Computer Aided Design)

Process of using a computer to create a design or shape for a die layout.


The thickness of the board, usually expressed in thousandths of an inch, or "points"


(Clay Coated News Back)

Recycled paperboard that is either brown or gray colored on one side (depending on the fiber used), and clay coated on the other


(Clay Coated Kraft Back)

Recycled paperboard that is brown on one side, and clay coated on the other


A paperboard made from recycled paper stock, generally kraft in color

C1S paper 

Paper that is coated only on one side.  Necessary to have an uncoated side available for the gluing/laminating process.

Corner cut 

Cutting out a 90 degree angle to create a corner for a base or lid

Corrugated Board 

Two flat facings of linerboard, each glued to a side of fluted corrugated medium


An image or area pressed into paper or board creating a sunken area


A tool made of wood, plastic or steel. The cutting and creasing rule is made of steel cut and score rule


The process of cutting raw material to a desired shape using a cutting die (steel rule imbedded into hardwood)


The three measurements of a box, given in the sequence of length, width, and depth using inside dimensions.  The length and width are figured as the open face of the box


An image or area pressed into paper or board creating a raised image/area

ECT (Edge Crush Test) 

Measures the amount of force needed to crush on-edge combined board

Foil/Hot Stamp 

Process of transferring print through heat and pressure with the use of special stamping foils

Folding Carton 

A container made by bending grades of paperboard or plastic (plain or printed), cutting and creasing in a variety of sizes and shapes, folding and then delivering flat or glued and collapsed. Formed by the manufacturer to be set up, filled and closed by the user. Folding cartons are constructed in a multitude of styles, some of which include: tuck-end carton, seal-end carton, reverse tuck, straight tuck, two piece, display cartons, and many others


The wave shaped pressed into the medium ( E flute approx. 1/16", B flute approx. 1/8", C flute approx. 3/16" and doublewall approx. 5/16")


A specific size and style of printer's type.

Four Color Process 

In printing, refers to the subtractive primary colors: yellow, magenta, cyan plus black, used to recreate a color photographic image. Pictures are an optical illusion that results from the arrangement and concentration of dots representing these four colors in a certain fashion that they form an image.

Glue Flap 

A panel on a carton where adhesive is applied.


The process of applying adhesive to a panel and adhering another panel atop to form a completed carton. Gluing is usually the last operation in the manufacturing process.


The design and decoration of the exterior surfaces of a package.


A cutting machine, hand operated or power driven, in which the cut is made by a long knife that descends vertically on the material to be cut. Usually used for cutting paper.

Hinge Lid 

Lid of box attached to base along one side

KDF (Knocked Down Flat) 

Boxes in the flat form.

Mullen Test 

Measures the force required to rupture linerboard when under pressure, related to a box’s ability to withstand external and internal forces


Placing a smaller box inside a larger box, or process of stacking bases or lids inside each other


(Pantone Matching System)

A series of standard colors commonly used by package designers and manufacturers. These are published by Pantone, Inc. Communication of specified colors can be made with a code number on a tear-away chip taken from the book.


Any wall or panel that separates cells, sections or units.


Consecutive slot/space combination of die-cutting lines.


A department that prepares plates or films for the printing process


A test photographic print or trial impression in a printing process taken for correction or examination.

Recycled Paperboards 

are made from pre- and post-consumer waste. Pre consumer waste is mill conversion waste - in other words, paper products that haven't made it to market. Post consumer waste consists of paper products that have been used and discarded. Recycled paperboard is six to nine ply, and has a less desirable printing surface than SBS.

Reverse out print 

Print that has been cut out of the background color, or the absence of ink

RTE (reverse tuck end) 

Folding carton where end tucks are extensions on opposite panels

Rigid Set-Up Box 

A stiff paperboard box in three-dimensional construction, generally overwrapped with printed paper, and delivered "set-up" ready to use

SBS Paperboard

(Solid Bleached Sulfate) 

is paperboard that is bleached, which gives the sheet a clean, white appearance all the way through. The bleaching process degrades and weakens the "virgin" fibers, which, in turn, has some effect on the strength of the sheet. The clay coating on the SBS sheet provides a smoother printer surface than CUK or recycled fibers, because bleached fibers are smooth, clean and pliable. SBS paperboard is usually one ply.


A crease in the board to facilitate folds

Seal-End Carton 

A carton, which is glued along the depth dimension by the manufacturer. Its top and bottom flaps are folded over the open end and glued after it is filled with the product.

Shoulder box 

Lid of box does not overlap the base, the box has a 2nd, shorter liner or tray wrapped and glued inside the base, creating a lip and support for the lid to rest on the base tray

Simplex style box 

Folding box style with quick lock corners, creating double thickness on ends, delivers flat


A tubular form, open at both ends, that slides over a box for protection


A cut made in fiberboard extending through only a portion of the board, creating a fold

Snaplock (1-2-3 bottom) 

A particular bottom style of a folding carton consisting of four flaps, each having a cutaway area. Each flap is hinged off of one of the four sidewalls of the folding carton and folded in toward the center where overlapping areas of the flaps lock together to form an economical carton bottom. Sometimes called a 1 2 3 bottom or Houghton bottom

Stay only 

An unwrapped chipboard box with the taped corners exposed


The material used to make products.

Straight Tuck End Carton

A tube style of carton with both tuck end panels for closing extending off the same face panel.


Basic design or pattern of a container.

Structural Design 

A department that designs and/or programs the folding carton.

Telescope Box 

A box composed of two separate sections that consist of a tray and a similar-shaped lid. The length and width of the lid are slightly larger than those of the tray so that the lid slides over the tray as follows: full telescoping (the lid fits over the entire depth of the tray) and partial telescoping (the lid fits over a portion of the whole depth of the tray).

Thumb notch or thumbhole

A half-moon cut in the side of a lid, done for ease in opening-cut made after lid is wrapped


Usually a shallow, open top container made from paperboard


The end portions of the top or bottom flaps of a folding paper box (carton), which are inserted inside the container to hold the end (top or bottom) flaps in place.

Tuck End Carton 

A carton consisting of four or more panels that are folded completely around to make a tube. To close the tube there will be on both ends either tuck flaps, seal and flaps or other type flaps or locks.


The portion of the paper that wraps to the inside, normally 9/16"


Paper that is adhered to the outside or inside of a box

White vat 

Recycled paperboard with white liner on one side, kraft liner on other

©2010, EastCoast Packaging Corp.