Decovery® SP-6200 XP

The bio-based rub resistant queen of inks!

The Decovery® SP-6200 XP, a self-crosslinking emulsion resin, is all about performance, in everything from deep freezer packaging to hamburger boxes and coffee cups. 

It is a bio-based acrylic designed for multiple substrates and multiple print layers, ideal for flexo and gravure printing. As well as being easy to formulate, it displays good chemical resistance and excellent SATRA rub resistance and blocking test results.

In profile

Good adhesion to most paper and filmic substrates

Good reversability

Good anti-blocking

Mechanical resistance

water resistance

Heat resistance

Chemcial resistance

Food contact compliant

Low foaming

Low odor

Applicable with common print techniques

Environmental impact of Decovery® SP-6200 XP

Verified by Beta Analytic Inc. (Biobased and Biogenic Carbon Testing Laboratory), according to ASTM D6866-16 Method B (AMS)
2 Data based on internal calculation. Results may slightly vary compared to final 3rd party reviewed LCA report. Lifecycle assessment is currently being conducted according to ISO-14040-14044, IPCC 2013 GWP 100a standard and the WBCSD chemical sector guidance; Data expressed in kg CO2/ kg resin; absolute CFP SP-6200: 1.71 kg CO2 / kg resin
3 Calculation based on data from United States Environmental Protection Agency

Putting our Decovery® SP-6200 XP to the test

Satra rub test

Why we do a Satra test

  • Most packaging has to be varnished after printing to ensure the print is rub resistant. Some blues and greens can easily rub off if a packaging is not varnished.
  • Rubbing tests determine whether lacquers etc. are actually protecting the print.​​
  • Inks and film must be durable in normal handling to preventing the ink or varnish film becoming marked, scuffed or smudged when it rubs against surfaces such as metal or plastic. ​​
  • This can happen on conveyors and during processing on gluers, packaging machines, and those used in print finishing.​​
  • Rub can also occur in surface-to-surface contact in conversion, distribution, shipping and storage. So wet rub resistance is important where printed and varnished surfaces may come into contact with water or condensed moisture (e.g. frozen and chilled foods). ​​
  • Rub resistance and adhesion were tested on bio-based SP-6200 and compared to starch-based inks formulations.​​\
  • This test uses a weight (normally 2,5kg) to check rub off from a clean substrate (paper, PET, PE & OPP) onto a printed stock. The weight strokes in a back and forth motion until surface appearance can be rejected.​​
  • For normal paper stock, 50 strokes is usually considered sufficient (Klemanski, 1998) Other patents in the market use around 100 rubs in Sutherland* test conditions (Spiekermann et al., 2019).​

Anti-blocking test

Why we do a block test

  • To describe and quantify the mechanical hazards that packages are subject to during handling, stacking and transport. The load a box can withstand depends on shipping requirements, stacking methods and climate.​​
  • When packaging is stacked for a long time, ink components can detach from the printed surface when the stock is separated for final use.​​
  • This can also occur when due to ‘set-off’ mechanisms, where substances used in printing inks can transfer from the printed (outer) surface to the inner, food-contact surface.​​
  • That is why we use a stacking test and a compression test. Our blocking test for coatings calculates the overall effectiveness of the coating when stacked or compressed against other printed items.​​
  • The blocking test compresses the sample with a pressure of 1 kg/cm2 in the block tester before it is placed in an oven at 52°C for 16 hours.​​
  • In blocking tests, the contact areas of the coating are examined and scored on a scale of 0-5 (5 being the best and 0 being the worst).

Other Decovery® resins for packaging applications

  • Decovery® SP-6400 XP

    Decovery® SP-6400 XP

    A bio-based resin for label adhesives with 20 °C lower wash off temperature reduction which uses less NaOH and results in energy saving.

  • Decovery® D-2105

    Decovery® D-2105

    A bio-based inkjet ink resin that is very flexible and extremely resoluble for printing on absorbent substrates, such as paper and corrugated board.

How Decovery® packaging resins will help our world

Covestro's Decovery® portfolio is perfectly suited for the creation of high quality coating resins that meet the environmental demands of the packaging markets – they contain zero-to-low VOCs, yet can match or even exceed the performance of starch-based alternatives.

All our Decovery® resins are made exclusively from plant-based resources, such as bark and beans, which are sustainably sourced and don’t compete with the food chain.

The search for sustainable packaging
 

Consumers are demanding sustainable packaging. Top brands are committing to it. Are you ready to embrace this opportunity? 
 

Your journey to sustainable packaging continues here

Where experience meets commitment. Our portfolio covers all packaging layers, and even includes innovative textured resins to drive product differentiation.

The story behind Decovery®

The packaging market experiences a strong momentum towards sustainable technologies. Driven by end-consumer demand, brand owners have announced ambitious sustainability pledges. Now it is up to the entire industry to deliver on these challenging goals. Our plant-based Decovery® resins are perfectly suited to contribute to greater circularity and bio-based materials.

Want to know more about Decovery®? 

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