Neue wissenschaftliche Erkenntnisse und aktuellste Produktentwicklungen aus der Industrie finden in unseren Vorträgen der Scientific Conference und des Forum for Innovations ihren verdienten Platz.
09:00 - 09:15
Recycling of Water and Detergent for Washing Processes in Commercial Laundries
Igor Kogut, Hohenstein Institut für Textilinnovation gGmbH
Spoken Language: German High consumption of water and detergents as well as high amounts of waste water are detrimental for sustainability and profitability of commercial laundries. The BMBF-funded research project “REWARD” investigates effective, practical strategies for reusing of laundry waste water. This research project is realized in cooperation between Polish and German research organizations and companies. The project strives to develop a novel recycling technology for an optimized water and resource management in commercial laundries. The recycling of laundry waste water by means of membrane filtration is still not sufficiently practical or economical due to low recycling quota of detergent ingredients, blocking of membranes and high maintenance and cleaning costs of the used membranes. Furthermore, the recycling process should be monitored by different analytical methods (e.g., bubble pressure tensiometry, alkalinity) in order to control the detergent concentration during the washing process, by additionally dosing a certain amount of detergent. The quality of washing processes using recycled water and detergent was also not systematically investigated. Thus, the research project wants to overcome the aforementioned scientific challenges by developing a novel recycling technology, which is made up of a dipole induction technology (Co. AQON) and a tailor-made membrane filtration plant (Co. ATEC). The dipole induction technology leads to efficiently filtering of laundry waste water. Further, the membrane surface will be optimized in order to achieve high recycling quota of detergents. The recycling process will be investigated at the laboratory scale, and then the recycling technology will be installed in the Polish laundry. The goal of the project is to reuse the most part of the laundry waste water. The high-level quality of the washing processes, i.e. hygiene and value retention, should be ensured. As a result, the novel recycling technology will improve the sustainable water and resource management and, also, environment protection as well as profitability of commercial laundries.
09:15 - 09:30
Two in One: A Reconstructed Full-Thickness Skin Model for the in Vitro Toxicological Safety Assessment and Efficacy Testings of Chemicals
Thomas Förster; Henkel AG & Co. KGaA
Spoken Language: German Since a growing number of legislations restricted or banned animal experiments for toxicological safety assessment (REACh Regulation (EC) No 1907/2006; EU Cosmetics Regulation (EC) 1223/2009) efforts have been undertaken to provide alternatives to in vivo testing. In order to cope with these legal demands we have developed a full-thickness skin model comprising both an epidermal and a dermal compartment which are built up from primary human keratinocytes and fibroblasts, respectively. Cultured at the air-liquid interface it reveals a phenotype closely resembling native human skin in its tissue architecture and physiology. This implies the expression of tissue-specific differentiation markers, e.g. filaggrin and elastin, as well as the synthesis of basement membrane proteins like laminin-5, collagen IV- and VII. Histochemical and molecular analyses as well as non-invasive methods like confocal laser scan microscopy and optical coherence tomography are used to conduct basic skin research and efficacy studies with the skin model. Recently, the alkaline comet assay has been successfully transferred to our full-thickness skin model. For the first time the 3D Skin Comet assay allowed to detect genotoxic effects, i.e. mutagenic and clastogenic leasions, after dermal exposure while the clear intrinsic metabolic capacity of the skin model supported the conversion of test chemicals to their respective metabolites. Meanwhile, the assay has been successfully validated with testing 30 chemicals blinded in 5 independent laboratories. Based on the good results, its intended use has been exemplified in 3 dossiers of hair dye ingredients. The negative (thus beneficial) outcome obtained with the 3D Skin Comet assay have been accepted by the SCCS in weight-of-evidence approaches. Taken together, the commercially available 3D full-thickness skin model represents a valuable and reliable tool for in vitro genotoxicity and efficacy studies on dermally applied substances.
09:30 - 09:45
Temperature Effects on Foam Stability and Correlated Foam Structure
Svenja Bäßler, KRÜSS GmbH
Spoken Language: German The dynamic properties and decay mechanisms of liquid foams strongly depend on the temperature for many applications. To investigate such effects, a temperature-controllable prism column was developed allowing for foam analysis at temperatures between 10 °C and 60 °C. Using this column it is possible to measure foam height and foam structure simultaneously with the KRÜSS Dynamic Foam Analyzer - DFA100 equipped with the Foam Structure Module (FSM). Foam can reproducibly be generated by sparging or stirring in the DFA100. Changes in the foam and liquid height can be measured to investigate foamability and decay mechanisms like drainage and bursting of bubbles, while changes in the foam structure (bubble size and distribution) allow for analyzing Ostwald ripening and coalescence processes. We present simultaneous foam height and foam structure measurements of highly foaming surfactant mixtures at different temperatures and discuss the influence of glycerin as an additive. The height analysis reveals that glycerin significantly enhances the foamability of the samples indicated by a higher foam volume after foaming. The foam volume remains nearly constant during the complete measurement for all samples. Therefore, no significant differences between the different samples can be obtained from the foam height measurements. Here, foam structure analysis using the temperature-controllable prism column enables the investigation of decay effects and the influence of temperature. The foam structure analysis shows smaller bubbles with a narrow bubble size distribution during the complete measurement in samples that contain glycerin. Samples without glycerin show Ostwald ripening, leading to a wider bubble size distribution and thus decreased foam stability. This behavior can be explained by the fact that glycerin is highly viscous; it increases the viscosity of water-mixtures. The higher viscosity leads to slower drainage and more constant bubble size, resulting in an increased stability of glycerin containing foams even at higher temperatures.
09:45 - 10:00
Integrated Bioprocess Design for the Production of Tailor-Made Glycolipids Using Starmerella Bombicola: Promising Results from Application Testing
Lisa Van Renterghem, InBio.be, Ghent University
Spoken Language: English Biosurfactants are an emerging class of surfactants produced by microorganisms, offering a more environmentally friendly alternative compared to traditional surfactants. One type of glycolipid biosurfactants are sophorolipids (SLs), naturally produced by the non-pathogenic yeasts from the Starmerella clade in high amounts (> 200 g/L), explaining its large industrial interest. Due to unique expertise gathered at InBio.be, Starmerella bombicola can be genetically engineered to alter the production towards one specific sophorolipid or novel glycolipid, transforming S. bombicola into a real platform organism. This research focuses on developing an integrated bioprocess design (IBPD) strategy for the production of new-to-nature glycolipids using genetically engineered S. bombicola strains. In this strategy, the entire innovation chain is considered: from genetic engineering to medium optimization, fermentation and downstream processing, to final application testing. The application testing is very important to define possible applications of the tailor-made molecules. Since biosurfactants can be employed in so many fields of industry, this is a complicated task, and therefore a multidisciplinary collaboration was set up. Different possible applications of tailor-made glycolipids were assessed and some very interesting leads were found, showing that there are real opportunities in various markets/applications. For example, a new method to encapsulate iron oxide nanoparticles into liposomes was discovered. Antimicrobial characteristics were assessed for various tailor-made glycolipid molecules for selected bacteria and fungi. An ecotoxicological evaluation of the novel-made glycolipids display much higher (or even not-determinable) EC50 concentrations compared to traditional surfactants, making them very promising alternatives. This portfolio of tailor-made sophorolipid biosurfactants with varying characteristics and properties will lead to an improved market penetration of biosurfactants in the future.
10:15 - 10:30
Surfactants & Biocides – a Winning Team! Learnings from Water Treatment for HC and I&I
Christoph Blickenstorfer, Kolb Distribution Ltd.
Spoken Language: German On the one hand, water is an essential part of many production and cleaning processes. It is also a part of a product formulation. On the other hand, water is the basis for living organisms, which may then cause hygienic and odour problems, for example in washing machines or medical-related infections. When tackling microbiological contamination, it is important to distinguish between the bacterial population within the water and their preferred form of life within biofilms. In the first case, biocides (disinfectants or preservatives) are used to successfully combat microbial problems. In the latter, (case of biofilms) the use of biocides in the best case leads to a killing of the microorganisms in the film matrix. However, the dead / inactivated cells and the matrix remain unremoved on the surface. The matrix consists of different classes of macromolecules such as polysaccharides, proteins, nucleic acids, (phospho)lipids and other polymeric substances. Therefore, the winning solution is to apply the right combination of biocides and surfactants to enhance the performance of biocides and lower the consumption of biocides. This will ultimately lead to improving the ecological footprint. An important starting point for the removal of unwanted biofilm is the breakup of their mechanical stability, held together by cohesive forces within the matrix. Even though mechanical cleaning is the most effective method to remove biofilm, it is not always easily done. Under these circumstances, suitable cleaning agents are used. We will discuss two demanding industrial applications of microbial control, whereby a successful combination of surfactant blends with biocides could be demonstrated. Furthermore, we will show lab results on efficacy test for the combined use of surfactants and biocides. With this, we hope to inspire joint development projects in the area of Home Care and I&I applications.
Spoken Language: English Foam control is critical for the optimal performance of cleaning systems. Because each system is unique in formulation and performance requirements, multiple defoamer technologies are necessary to satisfy the many needs. As a company over 180 years old, Münzing produces specialty additives for a variety of aqueous applications, but the core of the product line is comprised of defoamers that include state-of-the-art 3-dimensional (3D) siloxanes and food-grade products based on vegetable oils, silicones, and white mineral oils. The 3D siloxane products represent the most powerful defoaming technology available, while the vegetable oil types provide the green alternative for sustainability, non-toxicity, and biodegradability. This presentation will introduce Münzing and its defoamer product line and provide a basic introduction to defoamer technology.
11:15 - 11:30
Innovation Tools to Integrate Sustainability Performance in the Formulation and Manufacture of Personal and Home Care Products
Martijn Gipmans, thinkstep AG
Spoken Language: English Society and customers have become more conscious about sustainability aspects of home and personal care (HPC) products. Issues such as natural resource depletion or environmental degradation in relation to raw materials or social aspects related to the health and safety of consumers have become important factors in the development of new HPC products as well as communication towards stakeholders and consumers. thinkstep presents two innovative tools to integrate sustainability performance in the formulation and manufacture of HPC products: Life-cycle Assessment (LCA) and SustainableSolutionSteering. Life cycle assessment (LCA) is widely considered the state-of-art methodology to evaluate environmental performances of products and production processes. Although LCA is a scientific method, an intuitive front-end tool supports environmental managers, product designers, production planners, marketing and sales people and other decision-makers and stakeholders to analyse the environmental impacts of HPC products in detail. The most common application of these tools involve the generation of automated reports (e.g. for Environmental Product Declarations (EPD), Product Environmental Footprint (PEF)) or product and process comparisons based on internal requirements of a company (e.g. comparison of bio-based vs. fossil based feedstocks, eco-design dashboards). Furthermore, these tools are frequently also used in communication with external stakeholders. The second innovative tool – SustainableSolutionSteering (tripleS) – uses qualitative criteria to assess the performance of HPC products across the three pillars of sustainable development: economic, environmental and social. The result of a tripleS assessment is a classification of the product portfolio of a company into products with a potential (future) sustainability concern, neutral products and products with a substantial sustainability benefit. Through such a systematic assessment, companies gain a strategic oversight of sustainability risks and benefits that can be used in R&D, marketing and communication.
11:30 - 11:45
SILHA®TEC OP – Native, Readily Biodegradable and Efficient Opacifier for Detergents, Cleaning and Cosmetic Formulations
Ulrike Marx, NCD Ingredients GmbH
Spoken Language: German Attractive appearance which corresponds to the application or effect of a formulation increases its attractiveness. Both for detergents and cleaning agents as well as for rinse - off cosmetics, opacifiers are used for formulations with a highly caring and sensitive character, since these optical effect underlines the care aspect of a formulation. Some of the opacifiers and pearlescent agents used today are poorly or not at all biodegradable, which is a critical point. Especially the non-degradable, micro plastics based, turbidity agents are an environmental issue. SILHATEC OP offers an alternative. SILHATEC OP is an innovative opacifier with very good opacifying properties combined with excellent biodegradability and native raw material base. Due to its structure, SILHATEC OP shows a convincing turbidity which is pure white, without colour shimmer effects. SILHATEC OP underlines the caring character of washing, cleansing and cosmetic formulations in a natural way.
11:45 - 12:00
Searching for alternative, natural ingredients using solubility parameter technology.
Jørgen Gade Hyldgaard, HYGADE
Spoken Language: English INTRODUCTION: Methods on searching for alternative, ex. natural ingredients for preservation/co-preservation, for more focused extracts or for improved skin penetration or for alternative natural emulsifiers. . METHODS: If you have access to a database with possible, alternative and/or natural ingredients it is possible to find relevant proposals for alternative ingredients. If you know which type of ingredients you are looking for and you have information on your current ingredient to be substituted, solubility parameters is a very attractive starting point. RESULTS: The presentation will show examples on how to search for alternative preservative or co-preservative ingredients or for alternative emulsifiers. The presentation will compare known ingredients as to their toxicology, molecular size and solubility parameters. Further we will look at a number of ingredients and try to predict their possible co-preservative or antimicrobial effects. We will also look at selected natural materials and their ingredients and try to predict their effect in relation to skin penetration and preservation. DISCUSSION AND CONCLUSION: This method based on solubility parameters has been used for searching alternative ingredients in our company and we have seen a huge number of nice predictions for alternative ingredients. The method is valuable when you are searching for alternatives for specific ingredients. It is also valuable for searching ingredients promoting skin penetration, stability or solubility. The method is valuable in the striving for preparing more advanced extracts of natural ingredients, if you know which ingredients in a natural product, you would prefer to optimize in the natural extract. Also we have succeeded using this technology for skin delivery systems bringing high molar weight molecules to the skin basal cellular layers. Solubility parameters are elegant tools for use in cosmetic product development.
Spoken Language: English
09:00 - 09:30
Twist Your Cream And Gel Skin Care to a Leave-on Rich Aerosol Free Foam
Alicia Roso, Riva Birnet-Spiesser SEPPIC SA.
Spoken Language: English Texture transformation, especially when created by the consumer itself during use, is a powerful way to drive consumer emotional experience. Moreover, when the transformation is dynamic and visible by the naked eye, it helps to boost the perception of an immediate efficacy as the user notices that some obvious reaction occurs. Drawing on this basis, we designed a two phases DIY* formula concept: a O/W emulsion and an clear aqueous gel that creates a rich foam texture in a sustainable way, by simple mixture with a spatula, without any aerosol device or special packaging needs. The foam development is prompted by a acid-base reaction, controlled by the content of special additives in each composition. More than the texture shift principle, what is really innovative in this concept is the unique skinfeel experience with a strong contrast between the first airy expected sensation and an unexpected consistency and richness upon spreading, without any sticky effect. The generated foam last approximately fifteen minutes if left at rest in a small cup, then transforms again in a stable supple cream. The density of the foam texture and its rich and comfortable sensation is achieved by the use of a multifunctional stabilizer, able to maintain the formula viscosity in very acid or alkaline media, as well as with stressful active ingredients. Its robustness allows to mix the two formulas containing anti-ageing actives while keeping the texture consistency. The unusual rheology profile of the polymeric stabilizer contributes as well to the “non aqueous” foam perception during the spreading step. This two phases formula concept give interesting perspectives to design surprising DIY or professional kits for skin as well as for hair care. Texture transformation, especially when created by the consumer itself during use, is a powerful way to drive consumer emotional experience. Moreover, when the transformation is dynamic and visible by the naked eye, it helps to boost the perception of an immediate efficacy as the user notices that some obvious reaction occurs. Drawing on this basis, we designed a two phases DIY* formula concept: a O/W emulsion and an clear aqueous gel that creates a rich foam texture in a sustainable way, by simple mixture with a spatula, without any aerosol device or special packaging needs. The foam development is prompted by a acid-base reaction, controlled by the content of special additives in each composition. More than the texture shift principle, what is really innovative in this concept is the unique skinfeel experience with a strong contrast between the first airy expected sensation and an unexpected consistency and richness upon spreading, without any sticky effect. The generated foam last approximately fifteen minutes if left at rest in a small cup, then transforms again in a stable supple cream. The density of the foam texture and its rich and comfortable sensation is achieved by the use of a multifunctional stabilizer, able to maintain the formula viscosity in very acid or alkaline media, as well as with stressful active ingredients. Its robustness allows to mix the two formulas containing anti-ageing actives while keeping the texture consistency. The unusual rheology profile of the polymeric stabilizer contributes as well to the “non aqueous” foam perception during the spreading step. This two phases formula concept give interesting perspectives to design surprising DIY or professional kits for skin as well as for hair care. Texture transformation, especially when created by the consumer itself during use, is a powerful way to drive consumer emotional experience. Moreover, when the transformation is dynamic and visible by the naked eye, it helps to boost the perception of an immediate efficacy as the user notices that some obvious reaction occurs. Drawing on this basis, we designed a two phases DIY* formula concept: a O/W emulsion and an clear aqueous gel that creates a rich foam texture in a sustainable way, by simple mixture with a spatula, without any aerosol device or special packaging needs. The foam development is prompted by a acid-base reaction, controlled by the content of special additives in each composition. More than the texture shift principle, what is really innovative in this concept is the unique skinfeel experience with a strong contrast between the first airy expected sensation and an unexpected consistency and richness upon spreading, without any sticky effect. The generated foam last approximately fifteen minutes if left at rest in a small cup, then transforms again in a stable supple cream. The density of the foam texture and its rich and comfortable sensation is achieved by the use of a multifunctional stabilizer, able to maintain the formula viscosity in very acid or alkaline media, as well as with stressful active ingredients. Its robustness allows to mix the two formulas containing anti-ageing actives while keeping the texture consistency. The unusual rheology profile of the polymeric stabilizer contributes as well to the “non aqueous” foam perception during the spreading step. This two phases formula concept give interesting perspectives to design surprising DIY or professional kits for skin as well as for hair care. *Do It Yourself
Spoken Language: German While skin feel remains one of the main influencing factors for cosmetic purchases and loyalty to care products, nowadays, one focus is on innovative textures for a vivid experience. Such textures can add a fun element to the daily beauty routine. Here we will present examples of such formulations like a “Caring Oil Release Cream”, a formulation with a surprising cream texture. The formula releases a caring oily layer on the skin making it appealing for very dry skin or massage products. Another surprising texture is the “Magic Cream to Milk” which, during application, breaks up in milk-like droplets and thus offers a new experience to consumers. We will discuss the required ingredients that offer broad formulation as well as sensorial flexibility, like versatile PEG-free O/W emulsifier Polyglyceryl-6 Stearate (and) Polyglyceryl-6 Behenate or Cetyl PEG/PPG-10/1 Dimethicone, a high performance emulsifier for all types of W/O formulations. We will use the evolution of our interactive online tool, Sensory Kaleidoscope 2.0, to put the innovative textures into a sensorial context. The tool assists the developer and formulator of finished cosmetic products to achieve the desired skin feel and builds on data obtained from our in-house descriptive sensory panel. Sensory Kaleidoscope 2.0 takes experiencing the visual and sensory differences between formulations to a next level: It is now possible to enter a second level sensory mapping of much higher detail depth. The new second level maps are constructed by an individual factor analysis, considering only formulations based on the chosen emulsifier. This allows a more detailed visualization of the skin feel which can be obtained with individual formulations based on one single emulsifier, out of the entirety of 12 emulsifiers included in the tool. Formulations can be selected based on the sensory positioning and their composition and processing details can be shown.
10:00 - 10:30
Janus Nanoparticles – Next Generation of Amphiphiles
Prof. Dr. Andrei Honciuc, Zurich University of Applied Sciences, Institute of Chemistry and Biotechnology
Spoken Language: English The amphiphilic Janus nanoparticles (JNPs) resemble molecular surfactants in that they exhibit a polar/non-polar duality. The JNPs with this property are also referred to as “solid-state” amphiphiles can also self-assemble giving rise to larger structures similar to micelles or vesicles. Unlike surfactants JNPs can be multifunctional; they can function as carriers of actives significant for future applications and do possess the key architecture for the development innovative formulations. The use of amphiphilic Janus nanoparticles in applications such as Pickering emulsions or surface functionalization, can be attractive, especially when the use of molecular surfactants is not desired. The main challenges in employing these solid-state amphiphiles are: synthesis in surfactants free conditions and scalability of the synthetic methods. Here we present a scalable synthetic method for obtaining polymeric JNPs in surfactant-free conditions starting from crosslinked polystyrene seed nanoparticles on which we grew lobes of different sizes via seeded emulsion polymerization.1 The homologous series of JNP amphiphiles resembles that of a surfactant series with varying hydrophilic-lyophilic balance (HLB). In order to further demonstrate the capability of this next generation of amphiphiles we employ the JNP series in the emulsification of oils of varying polarity in water. Depending on the polarity of the JNPs o/w or w/o emulsions are obtained. From the emulsions phase transitions curves we were able to calculate the interfacial energy of the JNPs with oils and water. Here we demonstrate that the HLB balance and polarity of the JNPs can be tuned, such that polarity inversion within the JNP homologous series is obtained. These new amphiphiles could be used in novel cosmetics formulations of functional creams and lotions. References (1) Wu, D.; Chew, J. W.; Honciuc, A. Polarity Reversal in Homologous Series of Surfactant-Free Janus Nanoparticles: Toward the Next Generation of Amphiphiles. Langmuir 2016, 32 (25), 6376–6386.
11:00 - 11:30
Balancing the Skin Microbiota by Strengthening the Skin Barrier Function and Supporting Skin-Own Pathogen Recognition
Dr. Torsten Clarius, BASF Personal Care and Nutrition GmbH
Spoken Language: German For decades, skin has been described as a succession of cellular layers. But skin cells are not the only living cells colonizing the skin. In the last years, new analytical methods enabled a deeper investigation of the microbiome. The skin is home to millions of microorganisms, creating a complex ecosystem with a subtle balance. This ecosystem balance can be disrupted by external aggressions which affects the barrier function of the skin. Repeated showers and detergents impair skin lipids crucial for skin barrier and attack skin microbiome population. Moreover, skin barrier impairment changes the microbiota biotope, its composition and biodiversity. The colonization with commensal bacteria like Staphylococcus epidermidis decreases, while harmful, pro-inflammatory bacteria like Staphylococcus aureus can take advantage and proliferate. An active ingredient, based on a specific, biochemically transformed yeast extract, stimulates the synthesis of epidermal lipids and tight junction proteins, strengthening the skin barrier. At the same time, the yeast extract stimulates epidermal pattern recognition receptors (PRRs). Such PRRs can detect bacteria, virus and certain fungies, and protect skin from a further colonization by activating antimicrobial defense mechanisms. We demonstrated that the active ingredient itself does neither have antibiotic nor prebiotic effects. Thus, it does not directly affect the microflora, which strongly varies from one individual to another. Nevertheless, we could demonstrate in vivo that the application of an emulsion containing the yeast extract has a positive effect on the skin microbiota. The normalized proportion of Staphylococcus epidermidis doubled. On volunteers who were also bearing pathogen Staphylococcus aureus, the ratio between normalized Staphylococcus epidermidis and normalized Staphylococcus aureus increased by a factor of 2.3. This improvement of the skin microbiota was accompanied by a significant increase of skin hydration after 14 days of application. Besides, results on the impact of particulate matter on the microflora will be presented in the lecture.
11:30 - 12:00
Combining Sensorial Formulations Innovation and Microbiome Protection for Whole Body Rejuvenation.
Caroline Marlier, Givaudan Active Beauty
Spoken Language: German Markets insights highlight the fact that consumers expect new textures delivering fast benefits and novel sensorial experiences. If 72% of the German consumers are looking for “quickly absorbed” textures, 58% of all European consumers expect the same benefit on top of instant hydration. By building on specific carbohydrates polymers, our formulation experts have designed an innovative jelly-like galenic inspired from Korean trends, which brings instant comfort and enhance consumers’ perceived value of the product. This formula based on 97% of natural ingredients, has been crafted around a new skincare active ingredient derived from stem cells and microbiome researches. Discovered from Orobanche rapum, a unique European chlorophyll-free plant, this natural active has been designed to deliver targeted biological actions from the lower to the higher layers of the epidermis. This multifunctional compound is the first active cosmetic ingredient scientifically tested to accelerate the entire skin regeneration process from bottom to top, acting on epidermal stem cells, keratinocytes, corneocytes and stimulating natural exfoliation to renew skin surface. Several full clinical studies versus placebo using the latest technologies (e.g. Raman spectroscopy, Optical Coherence Tomography and Diagnoskin), have proven the exceptional consumers’ benefits of this ingredient for face and body applications. But even more, by using microbiome technologies, this ingredient has been shown during a clinical test to protect the global skin microbiota composition and even to enhance its composition by reducing unwanted bacterial species. This conference will highlight how galenic creativity can engage consumers by combining new skin-fusion sensations while leveraging the performance of new generation of holistic ingredients rejuvenating skin and protecting its natural flora.
09:00 - 09:30
What to Expect from the New Chelates GLDA & MGDA in Detergents?
Dr. Jan Seetz, AkzoNobel Functional Chemicals
Spoken Language: English The traditional chelating agents like phosphates and the aminopolycarboxylates NTA, EDTA and DTPA have their environmental and/or toxicological disadvantages. The modern strong chelates like GLDA and MGDA are environmentally benign and not labelled as dangerous. Although less strong than EDTA, proof will be shown that they are sufficiently strong to boost the cleaning action, to soften the water sufficiently and to protect anionic surfactants against inactivation and precipitation. The new chelates can be combined with enzymes. GLDA and MGDA will boost the performance of biocidals and preservatives, so more ‘soft’ anti-microbials in lower concentrations can be used. These modern chelates can replace NTA in industrial and institutional cleaning and can replace phosphates in household detergents. Furthermore they outperform citrates with respect to water softening, descaling and dirt removal. Examples will be given of their good use in applications like car cleaning, laundry, hand dish wash and hard surface cleaning.
09:30 - 10:00
Raising the Bar for Household Care with Lipase Technology
Dr. Thomas H. Callisen, Novozymes R&D
Spoken Language: English The Household Care market is moving towards trends such as low-temperature cleaning and less consumption of traditional detergent ingredients. Lipase enzyme technology is designed to cater to these new market trends, and at the same time, to consumer demands for superior removal of fats and oils. But finding the best lipases for the job depends on several R&D capabilities such as enzyme screening, and selection and optimization of structure-function properties of lipase molecules for specific application conditions. In this presentation, we’ll discuss the science behind the discovery of the best lipases, and how detergent formulations and wash conditions come into play. We shall see how lipase technology improves removal of fats and oils, thereby providing several consumer benefits that are important for keeping clothes neat and attractive.
10:00 - 10:30
Polyoxyethylene Alkylether Carboxylic Acids: All-round Surfactants
Dr. Leonardo Chiappisi, Technische Universität Berlin
Spoken Language: English Polyoxyethylene alkylether carboxylic acids are a highly versatile class of surfactants. The molecule can be subdivided into three main parts: the lipophilic alkyl chain, which can vary in length and degree of insaturation; the polyoxyethylene block, and the terminal caborxylic acid, whose degree of ionization depends on solutions pH. This class of surfactants combines the advantages of nonionic and ionic tensides. They tolerate hard water, respond to temperature, and their HLB values can be easily varied, but are water soluble at high temperature, and exhibit a charged headgroup at pH > 4.0. From a fundamental science perspective, polyoxyethylene alkylether carboxylic acids are highly interesting building blocks in the colloidal playground. Given their high versatility, an incredible variety of responsive aggregates can be obtained when mixed with oppositely charged polymers, e.g., the biopolycation chitosan. In this contribution, the basic physico-chemical properties of polyoxyethylene alkylether carboxylic acids will be presented and rationalized in term of simple but powerful concepts from colloidal chemistry. More complex self-assembled systems are obtained in mixtures of polyoxyethylene alkylether carboxylic acids and chitosan, which strongly vary in structure, functionality, and field of application[1-3]. To conclude, we show an elegant way of separating pollutants from an aqueous solutions by exploiting the pH and temperature responsive properties of polyoxyethylene alkylether carboxylic acids[4-5]. References: (1) Chiappisi, L.; Gradzielski, M. Househ. Pers. Care Today 2016, 11, 8–11. (2) Chiappisi, L.; Prévost, S.; Grillo, I.; Gradzielski, M. Langmuir 2014, 30 (35), 10608–10616. (3) Chiappisi, L.; Prévost, S.; Grillo, I.; Gradzielski, M. Langmuir 2014, 30 (7), 1778–1787. (4) Schwarze, M.; Groß, M.; Moritz, M.; Buchner, G.; Kapitzki, L.; Chiappisi, L.; Gradzielski, J. Memb. Sci. 2015, 478, 140–147. (5) Schwarze, M.; Chiappisi, L.; Prévost, S.; Gradzielski, M. J. Colloid Interface Sci. 2014, 421, 184–190.
11:00 - 11:30
Intelligent Preservation System in Compliance with Legal Requirements
Anne Gückel, Schülke & Mayr GmbH
Spoken Language: German The preservation of household products presents an ever-increasing challenge under today's legal framework. The active ingredients used must not only comply with the requirements of the Biocidal Products Regulation (BPR), but also under the labeling requirements for triggering an allergic reaction. In addition, marketing aspects such as eco-labels (e.g. Nordic Swan) play a further role in the formulation of preservatives. The selection of the active ingredients for preservatives is therefore decreasing with increasing market requirements in the household industry. The interaction of all requirements makes it all the more important that the available remaining active ingredients are used in a sustainable and responsible manner. The efficient use of preservatives is also essential in order to minimize the risk of possible germ adaption and to continue to provide alternatives. It is therefore necessary to use synergies between the single active ingredients for a sustainable use of preservation. Thus, a high efficiency can be achieved with the lowest possible use concentration. It will also be important in the future to consider production hygiene as an integral part of the preservative concept, to adapt processes accordingly and thus to optimize the use concentration of the preservatives
11:30 - 12:00
Performance Assessment of Autodishwash Detergents - Out of the Test Laboratory, into the Home
Stuart Walker, McBride plc
Spoken Language: English Last year we gave a presentation on the test methodology for assessing the performance of autodishwash products (ADW). In this we explained that the IKW test is the de facto European standard test methodology but that test laboratories across Europe customised aspects of the test protocol for example in stain preparation, machine set-up and statistical analysis. This leads to different performance profiles and sometimes product ranking depending on which test institute is selected. This year we would like to return to a similar subject, but this time focus on the consumer experience, which we only touched lightly in the presentation last year. We previously showed that products that were ranked significantly differently in terms of laboratory performance test were not significantly different in a consumer panel test. However, surveys of ADW product consumers clearly show that for some there are unmet performance needs. What are they, and can we predict from lab performance data what the consumer reaction will be? We will use consumer panel testing information to try to answer some of these questions. Additionally, in the year that the consumer ADW product market switched to phosphate free the products in the German multifunctional tablet market showed again that in terms of technical laboratory performance they were the most highly performing in Europe. However, is this important to the consumer in the home? We will use consumer test data to examine if this excellence in laboratory tests delivers them perceivable benefits and also if the consumer need differs across different national markets. Is the formulator missing something by relying on laboratory test protocols alone? In conclusion we would like to determine real consumer needs and answer the question: are we as product developers really looking at the right criteria to meet these needs in the home?