What makes our Pallet Wrap so special?

One often hears the slang expression "Same-Same but different." Although this statement is sometimes humorous, is this really something you want to apply to the kind of products you use in your business?

Changing your 2 ply toilet tissue to a 1 ply toilet tissue may be purely based on necessity and budget, but how about the items in your business that has true value?

We understand that moving stock is a big deal. Stock has value and value means money, sometimes major money. So how do you physically protect this value?

Allow us to tell you about the breakthrough that is 7-Layer cast films. First, you need to understand some terminology.

Linear low-density polyethylene (LLDPE) is a substantially linear polymer (polyethylene), with significant numbers of short branches, commonly made by copolymerization of ethylene with longer-chain olefins. Linear low-density polyethylene differs structurally from conventional low-density polyethylene (LDPE) because of the absence of long-chain branching. The linearity of LLDPE results from the different manufacturing processes of LLDPE and LDPE. In general, LLDPE is produced at lower temperatures and pressures by copolymerization of ethylene and such higher alpha-olefins as butene, hexene, or octene. The copolymerization process produces an LLDPE polymer that has a narrower molecular weight distribution than conventional LDPE and in combination with the linear structure, significantly different rheological properties. - Courtesy of Wikipedia

The new 7-layer technology is the most advanced line in South Africa, based on 5 extruders with an advanced Cloeren 7-layer feed-block system which allows for very specific product formulations, especially for high-performance applications.

Previously, blown stretch film was the only way to go, however, blown stretch film for hand-wrap has one to three layers of butene/hexene LLDPE blends with expensive cling additives that are not used in cast films, which makes cast films a more inexpensive option with greater benefits.

The increased number of layers in cast film and improved molecular adhesion between the layers gives the film the following advantages:

* allows for significant film down-gauging while maintaining the mechanical characteristics of the thicker film

* superior puncture resistance, which prevents the films from tearing on sharp corners of pallets

* increases the holding strength of films on wrapped pallets

* increases the "Elmendorf Tear" properties (resistance to tear)

* alternating thin layers of mLLDPE allow greater use of low-cost wide-spec or butene LLDPE and reduce the amount of mLLDPE needed. In a 7-layer film with 3 mLLDPE layers, the metallocene content might drop to 33% versus as much as 40% mLLDPE spread over 2 layers of a typical 5-layer stretch film.

* while there are thus good reasons for letting the Cloerien feed-block create multiple layers from one resin stream, there are also arguments to be made for using more extruders. Co-Extruding layers of a single resin with two extruders increases the throughput of a line but doesn't affect film properties, this is without blending

* 7-layer stretch films are made from 5 extruders including a small sixth machine that extrudes edge bead out of trim waste, pre-defined blocks for the feed-block allow it to make 7-layers with 3 or 4 different polymers. It also uses a very large chill roll and quenches the film fast further improving puncture strength and cling.

* not all highly layered stretch films use mLLDPE noting that TD tear strength is lower with mLLDPE than with standard hexene/octene blends.

* the newest 7-layers films are high-strength films designed for down-gauging on high speed automated stretch wrappers, the film can wrap at speeds of 80rpm.

The list of benefits and the added bonus of a more inexpensive product makes this the ideal protection film when moving stock.  This is also the only cast film in South  Africa that has an ISO 9001:2008 certification.

The question we then pose to you is, what does your pallet wrap do for your product? We'll let that sink in...

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