Know Your Packaging
  • Carton Box
  • EPS
  • Shrink Film
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The different types of cardboard packaging

There are many different types of cardboard on the market. Thus, cardboard is a very versatile material with different thicknesses, shapes, and forms. The most common use for cardboard is in packaging and shipment.

What kind of cardboard is used for packaging?

We have listed below several different kinds of cardboard packaging, depending on your needs and requirements:

  1. Corrugated fiberboard
  2. Single-face board
  3. Single-wall board
  4. Double-wall board
  5. Triple-wall board
  6. Honeycomb cardboard
  7. Paperboard
  8. Grey paperboard and grey cardboard
  9. Matboard

1. Corrugated fiberboard

A wavy, fluted corrugation layer between two other flat layers of cardboard. This type of packaging is used for shipping goods and has quite a high-strength-to-weight ratio, depending on the level of protection you required.

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Also, corrugated fiberboard sizes are commonly represented by letters of A, B, C, E or F. The width and frequency of the waves in the fluted layer in the middle determine the size.

  • “A flute” – 1/4″ = commonly used for fragile products.
  • “B flute” – 1/8″ = used for padding.
  • “C flute” – 11/64″ = optimal for shipping boxes and to secure heavier items.
  • “E flute” – 1/16″ = used in displays and retail packaging.
  • “F flute” – 1/32″ = can be found in shoeboxes and clamshell packaging.

2. Single-face board

Single-face-board looks like corrugated fiberboard, except it doesn’t have the second section on the other side of the flute layers. This type of packing is often used to segregate items in a single box so that they don’t get broken during transit.

Single-face board

3. Single-wall board

This type of packing is a typical corrugated cardboard and features paperboard on both sides of the fluting to guarantee protection against impact that aren’t too delicate. Single-wall board is commonly used in boxes.

Single-wall-board

4. Double-wall board

The Double-wall board adds an extra layer of fluting in between the two outermost layers. This type of packing offer extra protection for whatever goods are stored inside and are more resistant to bending

Double-wall board

5. Triple-wall board

The Triple-wall board are very strong boxes and is ideal for heavy object like automotive parts or major appliance. This cardboard contains 3 layer of fluting in between the two outside walls.

Triple-wall board

6. Honeycomb cardboard

Honeycomb cardboard is a less commonly used type of cardboard packing. It consists of several layers of corrugation, which make up the length of the piece. This type of packing material helps to fill empty spaces for the packaging or transportation of any type of product.

Honeycomb cardboard

7. Paperboard

Paperboard is an extremely thin form of cardboard that is utilized for toilet paper rolls and cereal boxes. Thus, it is also known by the name chipboard or carton and is less durable than corrugated fiberboard. Also, paperboard is used for lighter items or non-load-bearing applications.

Paperboard

8. Grey paperboard and grey cardboard

Both types are made of recycled paper materials. Grey paperboard is used for packaging purposes and grey cardboard can be found in different industries, including bookbinding and packaging products. The difference between these two is the thickness.

Grey paperboard and grey cardboard

9. Matboard

Matboard is a heavy paper-based material and can be found in picture frames to protect artwork or photography. It comes in several different types of matboard such as a standard matboard, black core, white core and color core matboard, and conservation board.

Matboard

What is the difference between corrugated and cardboard?

The main difference between corrugated cardboard and the non-corrugated cardboard is the structure. Corrugated fiberboard is normally made up of more layers rather than just a single sheet.

Other differences:

  • The added layers keep your goods safe throughout the entire shipping process.
  • Corrugated cardboard is more eco-friendly than non-corrugated cardboard
  • Corrugated cardboard is customizable and is available in different size, card thickness and color.
Matboard
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What is expanded polystyrene (EPS)?

Expanded PolyStyrene (EPS) is a white foam plastic material. It is produced from solid beads of polystyrene. It is used for packaging and construction. It is a closed-cell, rigid foam material produced from:

  • Styrene – which forms the cellular structure
  • Pentane – which is used as a blowing agent

Both styrene and pentane are hydrocarbon compounds. They are obtained from petroleum and natural gas byproducts. EPS is 98% air and it is recyclable. It is a very lightweight material with the following benefits:

  • It has very low thermal conductivity, low moisture absorption, and excellent cushioning properties.
  • Its physical properties do not change within its service temperature range (i.e., up to 167°F/75°C) for long-term temperature exposure.
  • Its chemical resistance is nearly equivalent to the material upon which it is based – polystyrene.

How is expanded polystyrene made?

The conversion of expandable polystyrene to expanded polystyrene is carried out in three stages:

  • Pre-expansion
  • Maturing/Stabilization
  • Molding

Polystyrene is produced from crude oil refinery product styrene. For manufacturing EPS, the polystyrene beads are impregnated with the foaming agent pentane. Polystyrene granulate is prefoamed at temperatures above 90°C.

This temperature causes the foaming agent to evaporate. Hence inflating the thermoplastic base material to 20-50 times its original size.

After this, the beads are stored for 6-12 hrs allowing them to reach equilibrium. Then beads are conveyed to the mold to produce forms suited as per application.

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Benefits of EPS?

  1. Thermal Properties (insulation): EPS has very low thermal conductivity. This is due to its closed-cell structure consisting of 98% air. This air trapped within the cells is a very poor heat conductor.
  2. Mechanical strength: Flexible production makes EPS versatile in strength.
  3. Dimensional Stability: The maximum dimensional change of EPS foam can be expected to be less than 2%. This puts EPS in accordance with ASTM Test Method D2126.
  4. Electrical Properties: The dielectric strength of EPS is approximately 2KV/mm. Its dielectric constant is measured in the frequency range of 100-400 MHZ.
  5. Water Absorption: EPS is not hygroscopic.
  6. ...
  7. Chemical Resistance: Water and aqueous solutions of salts and alkalis do not affect expanded polystyrene.
  8. Read more
Matboard
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What Is Shrink Film

Shrink film, also known as shrink wrap or shrink plastic, is a versatile polymer material used for packaging and protecting products. When heat is applied to the film, it shrinks tightly over whatever it is covering, providing a secure and tamper-evident seal.

Material Composition of Shrink Film

  1. Polyvinyl Chloride (PVC): PVC is made by polymerizing vinyl chloride monomers. It often includes plasticizers to enhance flexibility and other additives to improve heat stability and durability.
  2. Polyethylene (PE): Polyethylene is a polymer of ethylene. There are different types of polyethylene used in shrink films, including Low-Density Polyethylene (LDPE) and Linear Low-Density Polyethylene (LLDPE).
  3. Polyolefin: Polyolefin shrink film is made from a polymer of olefin (such as ethylene or propylene). It is often cross-linked to improve its properties.
  4. Polypropylene (PP): Polypropylene is a polymer made from the monomer propylene. It can be biaxially oriented (BOPP) to enhance its properties.

Comparison of Shrink Films

Properties PVC PE Polyolefin PP
Clarity High Moderate Excellent Good
Shrink Temperature Low Moderate Low to Moderate High
Strength Good High High Very High
Puncture Resistance Good High High High
Flexibility Moderate High High Moderate
Food Safety No Yes (with certain grades) Yes Yes
Typical Applications Consumer goods, electronics Bundling products, pallets Food, pharmaceuticals, retail Food, textiles

Benefits Of Shrink Film

  1. Protection
  2. Shrink film’s durability protects and preserves contents, with cross-linked films offering high tear and puncture resistance for sharp-edged items. Ideal for high-volume packaging, it reduces product damage and waste. Additionally, it extends shelf life and conceals odors.

  3. Tamper-Evidence
  4. Provides a secure seal that shows clear signs of tampering, enhancing product safety.

  5. Versatility
  6. Suitable for a wide range of products and packaging shapes, from food items to industrial goods.

  7. Space Efficiency
  8. Reduces the bulk of packaged goods, saving space during shipping and storage.

  9. Extended Shelf Life
  10. Helps maintain the freshness of perishable items by providing a barrier against environmental factors.

  11. Cost-Effectiveness
  12. Lower material and transportation costs compared to other packaging options due to its lightweight nature.