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Global Press Releases

2021-07-05

Meeting the limits – reliable coloration of bioplastics

  • Iron oxide pigments from LANXESS are not affecting biodegradation and compostability of bioplastics
  • Pigment analysis makes it easier to ensure compliance with heavy metal limits in formulations

Cologne, July 5, 2021 – LANXESS supports masterbatch producers in the process of formulating colored biodegradable plastics by offering pigment analyses. As a result, the Inorganic Pigments (IPG) business unit offers a unique service by providing its customers with recommendations regarding the maximum pigment concentration of iron oxide pigments of the Colortherm brand in so-called bioplastic formulations with a low heavy-metal content.

“Our Colortherm iron oxide pigments are ideally suited to the task of coloring compostable plastics. The decomposition of the polymer is not affected,” says Stefano Bartolucci, Global Market Segment Manager for Plastics at IPG. “Based on the recommended pigment dosing, masterbatch producers can instantly develop individual formulations for colored biodegradable plastics – no expensive pigment screening is required,” says Bartolucci. Thanks to the Colortherm-brand iron oxide pigments from LANXESS, which, unlike alternative products on the market, are proven to be almost completely free from heavy metals, the limits for biodegradable plastics can be reliably maintained, even with a high pigment content.

Due to regulated heavy-metal levels, certain pigment classes cannot be used for coloring biodegradable plastics made from renewable or fossil resources. This is the case with, for example, nickel-, chrome- or copper-based pigments.

Making it easier to comply with the heavy-metal limits of the Organic Waste Ordinance

The global production capacity for bio-based plastics is growing annually by 7%. These products include not only non-biodegradable plastics made from natural raw materials, but also biodegradable plastics made from renewable or fossil resources. LANXESS estimates that around 2,800 kilotons (kt) of bioplastics will be manufactured annually by 2025, with 1,800 kt of this amount being biodegradable. This trend is being driven by, among other things, the discussion surrounding microplastics, the desire for resource security, and plastic waste policies in many countries.

“Green” products, recyclability, and compostability are in high demand and demand huge changes in the industrial sector because biodegradable plastic has to fulfill all the relevant usage standards applicable in various regions of the world before it can be sold. A host of regulatory directives apply, including the European standard EN 13432:2000 and US standard ASTM D 6400. These specifications encompass plastics and the resulting products destined for composting in municipal and industrial aerobic composting plants. Colortherm from LANXESS ensures that both of these standards can be easily complied with in accordance with the recommendation.

Comprehensive offering for coloring plastics

The inorganic pigments from LANXESS are widely used in the coloration of plastics for a broad range of applications. “Our pigments can enhance the properties of plastics, make them more cost-efficient, and increase flexibility in production. Our application specialists can also help customers all over the world find solutions to their challenges,” says Bartolucci. The company runs a global network of state-of-the-art laboratories and technical application facilities.

The Colortherm iron oxide pigments from LANXESS are available in red, yellow, brown, and black and also in numerous intermediate tones. They do not require special labeling, nor are they classified as hazardous substances. The consistently high product quality is achieved through the systematic use of controlled raw materials combined with continuous quality controlling. Production takes place to the highest standards of sustainability.

You can find more detailed information about the products and services provided by LANXESS at www.bayferrox.com.

Forward-Looking Statements
This company release contains certain forward-looking statements, including assumptions, opinions, expectations and views of the company or cited from third party sources. Various known and unknown risks, uncertainties and other factors could cause the actual results, financial position, development or performance of LANXESS AG to differ materially from the estimations expressed or implied herein. LANXESS AG does not guarantee that the assumptions underlying such forward-looking statements are free from errors, nor does it accept any responsibility for the future accuracy of the opinions expressed in this presentation or the actual occurrence of the forecast developments. No representation or warranty (expressed or implied) is made as to, and no reliance should be placed on, any information, estimates, targets and opinions contained herein, and no liability whatsoever is accepted as to any errors, omissions or misstatements contained herein, and accordingly, no representative of LANXESS AG or any of its affiliated companies or any of such person's officers, directors or employees accepts any liability whatsoever arising directly or indirectly from the use of this document.

Information for editors:
All LANXESS news releases and their accompanying photos can be found at press.lanxess.com. Recent photos of the Board of Management and other LANXESS image material are available at photos.lanxess.com. 

You can find further information concerning LANXESS chemistry in our WebMagazine at http://webmagazine.lanxess.com.

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LANXESS is a leading specialty chemicals company with sales of EUR 6.1 billion in 2020. The company currently has about 14,200 employees in 33 countries. The core business of LANXESS is the development, manufacturing and marketing of chemical intermediates, additives, specialty chemicals and plastics. LANXESS is listed in the leading sustainability indices Dow Jones Sustainability Index (DJSI World and Europe) and FTSE4Good.

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Ilona Kawan

Ilona Kawan
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Phone: +49 221 8885 1684

Fax: +49 221 8885 4865

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