Post harvest Management of Horticultural Crops (2+1)

Corrugated Fibreboard boxes

Corrugated fibreboard is manufactured in many different styles and weights. Because of its relativity low cost and versatility, it is the dominant produce container material. Double-faced corrugated fibreboard is the predominant form used for produce containers. It is produced by sandwiching a layer of corrugated paperboard between an inner and outer liner (facing) of paper-board. The inner and outer liner may be identical or the outer layer may be pre-printed or coated to better accept printing. The inner layer may be given a special coating to resist moisture.

Both cold temperatures and high humidity reduce the strength of fibreboard containers. Unless the container is specially treated, moisture absorbed from the surrounding air and the contents can reduce the strength of the container by as much as 75 percent. New anti-moisture coatings (both wax and plastic) substantially reduce the effects of moisture. Waxed fibreboard cartons are used for many produce items that must be either hydro cooled or iced. The main objection to wax cartons is disposal after use as wax cartons cannot be recycled and are increasingly being refused at landfills.

The ability to print the brand, size and grade information directly on the container is one of the greatest benefits of corrugated fibreboard containers.

There are basically two methods used to print corrugated fibreboard containers:
a. Post Printed
When the liner is printed after the corrugated fibreboard has been formed, the process is known as post printing. Post printing is the most widely used printing method for corrugated fibreboard containers because it is economical and may be used for small press runs. However, post printing produces ‘graphics’ with less detail and is usually limited to one or two colours.

b. Pre-printed
High quality, full-colour graphics may be obtained by pre-printing the linerboard before it is attached to the corrugated paperboard. Pre-printed cartons are usually reserved for the introduction of new products or new brands. Market research has shown that exporters may benefit from sophisticated graphics. The increased cost usually does not justify use for mature products in a stable market, but this may change as the cost of these containers becomes more competitive.

Advantages of CFB cartons over the conventional wooden boxes


1. Minimal bruising damage
2. Easy handling and stacking
3. More economical transport
4. Can be turned quickly into highly precise and accurate size
5. Can be appropriately punched, ventilated, printed low cost
6. Made pilfer-proof and reveal tampering at a glance
7. Offer the most acceptable packaging in the international markets
8. Collapsible and occupy less volume for storage of empty cartons
9. Cartons can be used for cold storage conditions giving water proof treatment
10. Can be made stronger by reinforcing with Hessian or nylon fibre.