Frozen

Maximum barrier - minimum material
The leading source of innovative and sustainable materials for protective packaging solutions.

Within our product line Walki®Pack, Walki has developed a range of barrier boards specially designed for the folding carton market. By using barrier boards the need for inner wrapping for foodstuffs is largely reduced. Thereby also the amount of packaging needed is reduced, with a positive environmental impact as a consequence. Walki®Pack is typically used for applications for direct food contact and for non-food packages in end-use sectors like frozen food, fresh food, non food, detergent, pet food, menu trays and lids, cosmetic, beverages and tobacco.

When manufacturing Walki®Pack we use carefully selected boards to give the required strength and conversion characteristics. The boards are then one or two side coated with a suitable polymer to achieve an economic barrier to meet the product requirements. All our products are tailored to meet customer requirements for cost effective and optimum packaging performance.


The right baseboard and the optimal polymer coating

Depending on the end use application our customers can choose from a variety of baseboards, offering the best solutions regarding:

· Strength (stiffness, burst strength and tear resistance)
· Hygiene (suitable for food contact)
· Appearance (surface whiteness, print result, shade of reverse side)
· Cost

For many applications, especially for frozen food, the baseboard should be hard sized, which means that the centre plies will be chemically treated by the board mill to reduce moisture uptake (edge wicking) when used in the fridge or in the freezer.

Having decided on the best base board we then design the best functional or decorative barrier by using selected polymers such as LDPE, HDPE, PP and co-polymers or by using paper, film or aluminium foil as a secondary web layer. The polymer can be clear or pigmented and are given either gloss or matt finish depending on the characteristics required.


Principle board types

· Folding Boxboard (FBB or GC)
· Frozen, chilled and ambient food cartons, confectionary, medical and bakery products
· Solid Bleached Sulphate (SBS)
· Food packaging and ovenable trays and lids, paper cups, cigarettes
· Coated Natural Kraft (CNK)
· Frozen food, bakery products, hardware and beverage multipacks.
· White Lined Chipboard (WLC or GD)
· Used for packaging household goods, secondary packaging and some restricted food products.
· Greyboard or Unlined Chipboard (ULC)
· Main uses include rigid boxes, lamination and dividers