carton packaging world classic

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Carton Packaging
World·Classic
[ ]
Shared by Packmage CAD Team

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1.Carton Packaging Word
2.Folding carton box template structure
3.Terms
4.Mathematics in the folding carton structure design
5. Folding carton functional structure design
6. Corrugated Carton
7. Paper bag
8.Cushion packaging
9.Loading and transportation
10.Carbon footprint
Outline

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1. Carton Packaging World
Many people mistaked that carton packaging is the
combination of the box template structural design and graphic
design. In fact, the carton packaging is far more than that.
In this chapter we will explain by two small examples : the
carton packaging is a macrocosm, this industry is promising if
you get involved.

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The client needs the packaging box structure

shown above, the carton box size is
80*45*100(mm)，cardboard
Sample 1《 Carton Packaging World
1.1 The cost difference between two minor difference box templates
with specific cardboard size

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Sample 1《 Carton Packaging World

1.1 The cost difference between two minor difference box templates
Select carton box template A, draw the die line template according to the carton
box size：

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Sample 1《 Carton Packaging World

1.1 The cost difference between two minor difference box templates
with specific cardboard size
It can step and repeat 12 boxes in the standard-sized sheet(Note：This sample
haven't take into account the loaded knife rationality factors）

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Sample 1《 Carton Packaging World

1.1 The cost difference between two minor difference box templates
with specific cardboard size
We can switch to carton box template B, its shape is exactly the same with
box template A.

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save paper
more than
20%.
Sample 1《 Carton Packaging World

1.1 The cost difference between two minor difference box templates
with specific cardboard size

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1.2 The carton packaging design impacts on transportation
Sample 2《 Carton Packaging World

Because of the difference of the buffer design, cardboard
material selection and structural design, the carton
packaging design will have a significant impact on
transportation.

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Container size：591cm*234cm
Carton size：
50cm*30cm
Carton size：
50cm*31cm
79 pieces
89 pieces
The area increase
2%, while cost
increase 11%
1.2 The carton packaging design impacts on transportation
Sample 2《 Carton Packaging World

11
Carton packaging
Carton box
Corrugated box
Paper bag
Folding carton
Glued carton
2. Folding carton structure

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Folding carton classification
Folding carton
Tubes
Trays
Tubes and Trays

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2.1 The definition of tubes
Tubes《 Folding carton structure analysis
It originally refers to the smallest box lid area amang, such as toothpaste
boxes, such as toothpaste box.

Now, it is generally defined from the molding characteristics: it refers to the
carton box that need both the lid and bottom closure panel fixed or sealed
during the molding process.

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2.1.1 The structure of the tubes
Tubes《 Folding carton structure analysis

1、2、3、4-Panels
5-Closure panel
6-Dust flap
7-Glue flap
8-Closure panel
9-Tuck flap

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2.1.2 The closure structure of Tubes
Tubes《 Folding carton structure analysis

Commonly closure structures：
1. Friction Tuck
2. Seal end
3. Locking tab
4. Push-in closure
5. Concave/Convex
6. Glued sealing
7. Snap lock bottom
8. Automatic lock bottom

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2.1.2.1 Friction Tuck
Closure《 Tubes《 Folding carton structure analysis

The sealing structure uses the
friction between the tongue, dust
flap and the panels to achieve
and maintain sealing, the

sealing strength and reliability is
poor, suitable for small,
lightweight daily necessities and
pharmaceutical packaging.


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2.1.2.4 Seal end
Closure《 Tubes《 Folding carton structure analysis
The locking strength and reliability of
the sealend structure is higher, but it is
less convenient.

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2.1.2.6 Push-in closure
Closure《 Tubes《 Folding carton structure analysis
Each flap is part of the pattern,
after plug-in the flaps composite a
beautiful pattern.

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2.1.2.5 Locking tab
Closure《 Tubes《 Folding carton structure analysis
The locking tab structure combined
the friction and lock end sealing
structure. With high sealing strengt
and reliability, it is suitable for heavier
contents.

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2.1.2.7 Concave/Convex
Closure《 Tubes《 Folding carton structure analysis
The Concave Convex structure with the own
strength and stiffness of the cardboard,
deformation of straight or curved creasing line on
the box, depressed flaps to achieve sealing.

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2.1.2.8 Glued sealing
Closure《 Tubes《 Folding carton structure analysis
The glued sealing structure with the
panels attached to the flap stick
together.

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2.1.2.9 Snap lock bottom
Closure《 Tubes《 Folding carton structure analysis

Snap lock bottom
also called 1-2-3
closure, the
bottom structure
is simple,
aesthetic and
economic with
strength and
tightness, it is the
most commonly
used lock bottom
structure and

widely used in
cosmetics, alcohol
and food
packaging.

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2.1.2.9 Snap lock bottom
Closure《 Tubes《 Folding carton structure analysis

When we drawing
the 1-2-3 bottom
structure, we usually
draw first part of the
closure, there is no
strict limit to the size
of A, generally
consistent with
proportions of the
box length. The
vertical distance of
the recessed portion
and the creasing
line of the length
must be 1/2 of the
width.

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2.1.2.10 Automatic lock bottom
Closure《 Tubes《 Folding carton structure analysis

The automatic
lock bottom refers
to the body and
the bottom of the
box can be folded
into a flat plate
shape, and the
bottom of the box
can be
automatically
restored to the
sealing status
when the box
stretched.The
structure is
complex and the
cost is higher than
other boxes.

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2.1.2.10 Automatic lock bottom
Closure《 Tubes《 Folding carton structure analysis

From the automatic lock bottom
structure, we can see both the
flap and width angle of the box
are 45 °, it is to avoid overlapp
when folding.
Part A is the locking tab which

is located the intersection of 1/2
length and 1/2 width of the box,
it is to enhance the lock strength.
The shade area is the glued part, it is folded on the opposite direction. The larger size the
glued part, the more firmly.
The 2 ° slash on Part B is to facilitate waste remove from the slash after carton box die-
cutting.
The 3mm width in part C is to prevent the carton rupture after multilayer paper overlapped.