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Cartons are used as secondary packaging in bakeries .These are termed as corrugated paperboard
boxes ( CBBS) in bakery lingo . These cartons are used for transporting biscuits , cakes and cookies to
consumers through distribution channels . Cartons are the most economical mode of packaging done for
transportation and handling .These are easy to palletize and suitable to be packed in containers . Cartons
with 1kg,2kg,3kg and 5kg are popular in bakery industry as these are easy to handle and lift manually .
Following are important features to check before finalizing carton for your product
Regular slotted cartons
This is the most common carton design, and efficient for many applications. All flaps have the same length
and the two outer flaps (normally the lengthwise flaps) are one-half the container's width, so that they meet
at the center of the box when folded. There is very little manufacturing waste, usually making this type of
box the most economical.
Half slotted cartons
Same as Regular Slotted Carton without one set of flaps. Normally used as a cover, an open storage
container, a deep tray, or as a bottom part of a 2-piece box where a telescope top would serve as a box
The 2-piece box made from two scored and slotted trays.
One piece of board cut so that it provides a flat bottom, with flaps forming the sides and the ends, and
extensions of side flaps meeting to form the top. Most common uses include books, paper reams, audio
and video, artwork, mirrors, and many more.
Five panel folder
A single cut and scored piece features a fifth panel used as a closing flap, completely covering a side
panel. The closed box has several layers of combined board on each end, providing stacking strength and
protection for long articles of small diameter which might me damaged, or damage the box if pushed
through the ends.
Pads are plain shapes of corrugated fiberboard. They can be used to fill the space between the inner flaps
of an RSC, to completely cover the bottom or top of a box, pr to separate layers of product (horizontally or
Dimension of corrugated box are given L X W X H . These are arrived upon by doing mock exercise with
the products .Products can be arranged horizontally or vertically as per the maximum number of packets
that can be arranged .So check your product dimensions and its arrangement in CBBS .
Kraft Liner - linerboard manufactured from pulp produced by the Kraft cooking process. This is the most
economical type of color because no further processing is applied.
White Top (Klay) Liner - a two-ply sheet composed of one bleached and one unbleached layer. Terrace
Paper Company uses a high quality grade of klay, thus very little kraft surface of the unbleached kraft
layer shows through. White-top corrugated board can be ordered one-sided (only one linerboard is White
Top, the other is Kraft) or two-sided (both linerboards are White Top).
Bleach Liner - liner that is composed entirely of bleached virgin fibers, making it white throughout. This
corrugated board can also be ordered one-sided or two-sided (with either one linerboard or both
Burst Test is a traditional form of measuring box strength (also known as Mullen Test). Burst Test is the
force required to rupture board hydraulic pressure. This force is measured in pounds per square inch.
Thus, a box’s burst strength of 200 test indicates that this box can withstand 200 lbs of hydraulic pressure
per square inch. Burst strength relates to individual box’s ability to withstand internal or external forces and
to contain contents during rough handling. Out of the two types of test board, Burst Test board is
considered a stronger and better quality kind.
The Edge Crush Test (ECT) is another form of measuring box strength and it measures top-to-bottom
compression strength of the finished box. Thus, it is usually measured by stacking weight on top of a
carton until it crushes. This force is also measured in pounds per square inch. Thus, a box with a 44 ECT
indicates that its board can withstand a force if 44 pounds per square inch before crushing. The higher the
ECT number is, the stronger is the compression that box can withstand.
Compression strength may be important depending on the types of materials and filling capacity of the box.
When a box is packed with heavy material and NOT filled all the way to the top, it is more likely to crush
when other boxes are stacked.
Single Face - one medium is glued to one flat sheet of linerboard.
Single Wall - the medium is between two sheets of linerboard. Also known as Double Face.
Double Wall - three sheets of linerboard with two mediums in between.
C-flute: the largest in size and most commonly used material. Offers superior stacking strength and is
commonly used for shipping cartons.
B-flute: thinner than C-flute, provides good puncture resistance, commonly used for die-cut boxes and
E-flute: lightweight, great printing surface, commonly used for die-cut boxes and retail packaging.
F-flute: very lightweight, easily folded, excellent printing surface. commonly used for retail packaging and
small die-cut boxes.
Carton Selection- Types and Parameter