Toleriane Ultra is a skincare cosmetic from La Roche-Posay which provides intense soothing care to hypersensitive and allergic skin.
Its packaging combines an innovative bag-in-bottle system with a special airless pump to protect this lotion, which is sensitive due to the complete absence of preservatives, from oxidation, drying out and penetration of contaminants.
The inner bag of the highly transparent bag-in-bottle packaging for the Toleriane Ultra skincare cosmetic from La Roche-Posay consists of DuPont™ Surlyn® and an oxygen barrier layer. Reasons for choosing Surlyn® include its crystal clear transparency, elevated flexibility for virtually complete emptying, very low adhesion to the outer polyester bottle so ensuring smooth detachment after coextrusion blow moulding and a low hot tack temperature for reliable closure of the container bottom.
The bag-in-bottle system consists of a strong bottle made from a crystal clear copolyester and an inner bag of highly transparent DuPont™ Surlyn® with an additional oxygen barrier layer. This novel design is the fruit of a joint development between DuPont and Gaplast, Saulgrub/Germany, a company which has successfully specialised in plastics packaging for pharmaceuticals and cosmetic products for over forty years.
Bag-in-bottle systems, developed in the 1990s, have long proved their worth when it comes to reliable storage of highly sensitive ingredients. The innovation in the version now used by La Roche-Posay is the transparency of all the materials used.
This means the contents can be checked at any time, so keeping a consumer fully informed about the state and amount of the product remaining in the container. In addition, this innovative type of packaging allows the bag to be almost completely emptied, so avoiding any unwanted product wastage while the external shape of the bottle remains unchanged.
Bag-in-bottle systems are produced by coextrusion blow moulding. In the case of the packaging for Toleriane Ultra, Gaplast firstly extrudes a four-layer tube with a polyester outer layer to provide rigidity and a highly flexible, chemical resistant inner layer with a Surlyn®/EVOH/Surlyn® structure. While still hot, the tube is directly transferred into a mould and pressed against the walls of mould cavity with compressed air.
This creates the desired container shape and, at the same time, the bottom of the container is closed. Using deliberately created holes in the container bottom, Gaplast then blows compressed air between the outer container wall and the inner bag. Because the level of adhesion between the selected grade of polyester and Surlyn® is very low, the two components can be particularly easily and gently separated.
Gaplast's special, patented manufacturing technology involves fixing the inner bag to the container bottom during the blow moulding operation. The inner bag is then fixed at the top when the dispenser is fitted. This means that the bag remains stretched to its full length as the container is emptied.
As the container gets emptier, the bag can thus fold almost completely flat without any inflowing air reaching the contents. As Leonie Kneer, Gaplast's sales manager says: "Fixing at both ends and the transparency of the bottle mean that a consumer can very easily make sure that the 40 ml contents have actually been completely used up before the bottle is thrown away. This is exactly the result La Roche-Posay wanted to achieve because it further builds consumer trust."
Stephan Kneer, Research & Development Manager at Gaplast, adds: "We manufacture under clean room-like conditions and test every single one of these airless systems for tightness. As a result, our packaging meets stringent hygiene requirements. Surlyn® has particular advantages over conventional plastics. Thanks to its softness and flexibility, the inner bag folds flat very well which means that this kind of packaging can be particularly completely emptied.
Its excellent extensibility ensures the greatest possible design freedom, while its very good processing characteristics are particularly advantageous. For instance, its low hot tack temperature assists reliable closure of the container bottom during blow moulding and the wide processing window of Surlyn® facilitates coextrusion with a numerous other thermoplastics which are used as the outer envelope and, in certain applications, also in the form additional functional layers."
Gaplast, an internationally active family business with 150 employees, is a leading innovator in the development and production of polymer systems for pharmaceuticals, medical technology and cosmetics.
DuPont Packaging & Industrial Polymers manufactures an extensive mix of adhesive, barrier, peelable lidding and sealant resins and provides a globally networked development team to work with customers on packaging programs that help protect the product, environment; improve shelf appeal, convenience; and reduce cost in the food, cosmetics, medical products and other consumer goods and industrial packaging industries.
DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802. The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment. For additional information about DuPont and its commitment to inclusive innovation, please visit (www.dupont.com).
Nilgun Turan | Konsens PR GmbH
Fraunhofer HHI with latest VR technologies at NAB in Las Vegas
24.04.2017 | Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI
Kiel nano research at the Hannover Messe
21.04.2017 | Christian-Albrechts-Universität zu Kiel
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
24.04.2017 | Physics and Astronomy
24.04.2017 | Materials Sciences
24.04.2017 | Life Sciences