Aquaseal®: A clear opportunity

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Hall 2 / 2-210

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Paramelt has developed a new range of water based, heat activated adhesives. These unique materials offer cost effective and environmentally sound solutions and enable completely new design concepts or product constructions to be achieved. The basis of this technology is the ability to produce previously unavailable, high solids, water based dispersions of high molecular weight thermoplastic polymers. Enabled by the unique flexibility of BLUEWAVE™ Technology from Dow, this approach allows complete freedom of material selection in optimising performance and functionality of water based heat seal coatings.

Aquaseal® heat sealable dispersions offer numerous economical and environmental benefits:

solvent free alternatives to solvent based lacquers;
potential for significantly lower coating weight compared to extrusion;
possibility of partial coating to have functionality only where needed;
contain little or no VOC’s;
high solids (up to 60%) offer reduced supply chain costs and environmental impact.
application using standard printing/coating methods: flexo, gravure, rotary screen, air knife, etc.

Traditional dispersion polymers such as acrylics, styrene acrylates or PVA, are limited in performance by the need to select monomers which are sufficiently reactive yet provide enough affinity to water for product stability. This new technology offers the ability to produce polymer dispersions based on almost any thermoplastic.

Paramelt have concentrated initial Aquaseal® developments on polyolefins, offering a range of dispersions based on PE and PP copolymers together with other high ethylene content materials such as EAA and EVA.

This versatility in material selection allows property optimisation based on application requirements rather than material limitations. In this way, products can be designed to achieve the best balance of characteristics, such as:

matched substrate affinity;
tailored seal initiation temperature;
controlled Coefficient of Friction (COF);
low in-reel blocking;
broad sealing range for maximal operating window.

For more information see www.paramelt.com or contact Mr Neill Dutton, Business Development Manager Dispersions at ndutton@paramelt.com

Paramelt (Hall 2-210), global producer of water based and hot melt adhesives have introduced several new metallocene hot melts this year.

The two new products in the 860-series provide long open time combined with very fast setting characteristics which offer customers significant potential for rationalisation of hot melts required across their installed packaging machine base. In addition to the wide operating window benefits, both products offer excellent adhesion to a wide range of substrates including highly coated boards and materials with high recycled content. Combined with excellent heat resistance and suitability for deep freeze applications the new 860-series of products offer an extremely broad spectrum of application coverage.

Excelta 860 is specifically designed to offer the highest level of hot tack available in a metallocene hot melt adhesive to deal with high spring back boards and to reduce sensitivity to variation in pressing conditions on the machine. Its higher viscosity reduces flow out of the adhesive before pressing to minimise consumption requirements.

Excelta 861 is a lower viscosity grade, designed to offer application temperatures as low as 130°C depending on the required open time, whilst providing clean jetting without tailing. The clean running characteristics mean it is ideal for upward jetting applications or straw attachment. In addition, due to the lower viscosity Excelta 861 can be considered for the most demanding sift proof applications.

With economy in mind, Excelta 704 is available as a general purpose product for standard case and tray applications, especially in the fruit & vegetables sector.

In addition to new hot melt launches Paramelt are expanding global capacity. Most recently via a new, high efficiency FSSC 22000 certified plant in the Netherlands (doubling hot melt capacity in Europe), a new green field ISO 22000 certified plant in China and capacity extension in the US.

about Paramelt

Paramelt is a multinational company focused on the development, production and sales of formulated waxes, adhesives and dispersions. Its products are processed into those of large and medium-sized industrial customers in sectors ranging from foods, cosmetics and packaging to rubber and investment casting. Paramelt, with its permanent staff of 420 employees, enjoys a turnover of around €217 million, which makes it the clear market leader in Europe and Asia. Paramelt has development and production facilities in the Netherlands, England, China and the United States. In addition, it has sales offices across Europe, North America and Asia. The head office is located in Heerhugowaard, the Netherlands.