What No-One tells you
about Cardboard

by Tony Yetton

Where to find cardboard & timber packaging experts

Corrugated cardboard is a stiff, strong, and light-weight material made up of three layers of brown Kraft paper. In 1884, Swedish chemist, Carl F. Dahl, developed a process for pulping wood chips into a strong papertest that resists tearing, splitting, and bursting. He named it the ‘Kraft’ process.

I asked Mike Blanchette, the Manager of our Cardboard Products Division about some Kraft corrugated cardboard specifics. Mike is our expert on cardboard as a packaging material, and he explained:

"There are many mixtures of paper, types and grades, laminated together to make up the sheets that then are made into the finished product."

He told me that the paper for the “Flute”or corrugation between the sheets is normally recycled paper, being recycled it holds its profile better than new or virgin paper. Mike added that when it comes to having “green” attributes, cardboard has been leading the way for many years.

The paper laminated to the fluted paper can be anything from recycled to 100% virgin Kraft and comes in various grades and thickness. To begin with there are Single face rolls, 2 light grades of paper laminated. This is supplied in rolls, is used for general wrapping and protection for furniture, glass etc.

The basic carton single wall grades are from 1 to 5, with 1 being the strongest. The common corrugations or "Flute" of the sheets are A, B, and C. the widths, being the distance between the apexes of the “Flute”, are approximately: A = 8mm, B = 3mm, & C = 5mm.

There are also Double wall & Triple wall sheets made that are a combination of these flutes, used for heavier products. There are also E, D & F flutes, very narrow, usually used for small die cut cartons or inserts for cosmetic cartons etc.

Essentially there are many different profiles for cardboard products that are dependent on the requirements, final use and client needs. Also, with cardboard being largely recycled product, it is the ideal “green” packaging material.

I asked Mike if he would describe what he does for Silverwater Box as a Niche Market supply.

He replied:

"Yes. In general, crate makers don't have expertise in cardboard packaging and/or design, nor do I in crating, but the combination of the 2 "heads" coming together is more likely to lead to a better or new solution. It is a "one stop shop" service that Silverwater Box Co offers, whereas most cardboard suppliers have no crating knowledge. As far as a niche situation is concerned, due to my packaging history I have many contacts from whom to get the best deal, and also the knowledge to challenge if we feel that the negotiation could be better for our Clients."

Mike went on to say that the cardboard options gave Silverwater Box a distinct advantage in the marketplace with a much broader, convenient offer to the client.

Catch all the News from Sydney's
niche market supplier

As more than just packaging consultants, Silverwater Box offers you customised solutions. Read our blog articles for all the latest updates and information on our industry . . .

  • By Air
  • By Sea
  • By Land
  • Global