Industrial & Institutional Cleaning. Automatic Dish Washing

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1 Industrial & Institutional Cleaning Automatic Dish Washing

2 BASF Care Chemicals for Industrial and Institutional Cleaning Effective, efficient and economical whether it be in cleaning, food safety or health protection. For these major challenges in Industrial and Institutional Cleaning, we offer you support that is industry-proven. Based upon our high-performance chemical expertise and recommendations for application-specific solutions, we deliver added value through innovation. Our products and recommendations improve the effectiveness of your cleaning and the efficiency with which it is performed. We help our customers to be more successful with expertise, with innovation and with a lasting commitment to the detergent & cleaner industry. Automatic Dish Washing (ADW) Immaculate dishes and glasses are essential wherever food is prepared and served. Besides the guests visual impression of cleanliness, compliancy with the increasing hygiene regulations is a key requirement in automatic dish washing. Therefore we strongly focus on various approaches which take into account these characteristics as well as the facilities, the production processes and the raw materials. Our expertise in chemistry and the ADW market results in offerings that provide you with excellent cleaning performance are aligned to increasing regulations are optimized to different dish washers are easy to handle are sustainable and take advantage of eco-labeling and thus provide you with a basis for long-term success with your customers.

3 Automatic Dish Washing Broad Product Portfolio

4 Automatic Dish Washing Cleaning Function Product group Chemistry Products Scale inhibition Water-soluble polymers, dispersing agents Maleic acid/acrylic acid Sokalan CP 12 S copolymer Polyacrylic acid, modified Sokalan CP 13 S Polyacrylic acid Sokalan PA types Wetting Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 221 Plurafac LF 300 Plurafac LF 305 Plurafac LF 901 PO-EO block polymer Pluronic PE 6200 EO-PO block polymer Pluronic RPE 2520 Binder Surfactants and polyalkylene glycols Polyethylene glycol Pluriol E 4000 Pluriol E 6000 Dispersion Water-soluble polymers, dispersing agents Maleic acid/acrylic acid copolymer, Na-salt Sokalan CP 5 Maleic acid/olefin copolymer, Na-salt Sokalan CP 9 Polyacrylic acid, Na-salt Sokalan PA 25 CL Sokalan PA 30 CL Emulsification of hydrophic dirt Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 132 Plurafac LF 231 Water-soluble polymers, dispersing agents Maleic acid/olefin copolymer, Na-salt Sokalan CP 9 Chelation of metal ions Chelating agents Nitrilotriacetic acid Trilon A Methylglycinediacetic acid Trilon M Dirt removal, non-oxidative e.g. tea, Chelating agents Nitrilotriacetic acid Trilon A coffee Methylglycinediacetic acid Trilon M Foam suppression Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Degressal SD 20 Foam control Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 224 Plurafac LF 303 Pluronic PE 60 Pluronic PE 80 EO-PO block polymer Pluronic RPE 31 Dirt removal Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 120 Plurafac LF 221 Plurafac LF 300 PO-EO block polymer Pluronic PE 60 Pluronic PE 6200 EO-PO block polymer Pluronic RPE 2520

5 Rinsing Function Product group Chemistry Products Scale inhibition Water-soluble polymers, dispersing agents Polyacrylic acid, modified Sokalan CP S Wetting Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 120 Plurafac LF 221 Plurafac LF 300 Plurafac LF 901 PO-EO block polymer Pluronic PE 6200 EO-PO block polymer Pluronic RPE 2520 Preservation Biocides Phenoxyethanol Protectol PE ph control, dissolving of inorganic scales Water-soluble polymers, dispersing agents Bronopol Mixture of aliphatic dicarboxylic acids Protectol BN Sokalan DCS Methanesulfonic acid Lutropur MSA Foam suppression Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Degressal SD 20 Foam control Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 224 Plurafac LF 303 PO-EO block polymer Pluronic PE 60 Pluronic PE 80 EO-PO block polymer Pluronic RPE 31 Dishwasher Cleaning Function Product group Chemistry Products Preservation Biocides Phenoxyethanol Protectol PE Corrosion inhibition Corrosion inhibitors Ethynylcarbinol alkoxylate Korantin PM Korantin PP ph control, dissolving of inorganic scales Acids Mixture of aliphatic dicarboxylic acids Sokalan DCS Methanesulfonic acid Lutropur MSA Foam control Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 224 Plurafac LF 303 Dirt removal Surfactants and polyalkylene glycols Fatty alcohol alkoxylate Plurafac LF 224

6 Automatic Dish Washing Excellent Wetting and Rinsing

7 Surfactants used in rinse aids must deliver excellent wetting on many different surfaces, to guarantee a good rinse-off on dishware and cutlery, to enable surfaces to be free of residues and to allow quick drying. As the rinse aid solution is also used to refresh the detergent solution, these surfactants must also show excellent wetting in the cleaning cycle. Therefore excellent wetting is necessary over a broad temperature range. I&I automatic dish washing surfactants are required to provide excellent wetting of different surfaces remain function over a broad range of temperature from 60 C up to 85 C enable a quick and spotless drying Picture 1 Wetting of a glass surface during contact angle measurements = Registered trademark of BASF group Test methods for wetting: Two test methods are used for the optimization and characterisation of the Plurafac and Pluronic products. a) Dynamics of wetting by measurement of the contact angle of a single drop of surfactant solution depending on the contact time (Picture 1). b) Complete wetting by evaluation of the homogenous wetting of defined areas of test specimen. These tests are run in a spraying apparatus. Glass specimen treated with and without Plurafac LF 300 are shown as an example (Picture 2). Wetting: Plurafac and Pluronic products on glass Only water Rinse aid/ no surfactant Picture 2 Area wetting of glass, Spraying apparatus, T = 70 C, contact time = s. Rinse aid + Plurafac LF 300

8 BASF Plurafac LF and Pluronic PE and RPE products enable quick and spotless drying of dishware and cutlery through excellent wetting and rinse-off of diverse surfaces like Glass and ceramics Metals, e.g. stainless steel Plastics, e.g. polyethylene Wetting speed of surfactants on different substrates Result on glass Test conditions: T = 70 C Surfactant concentration = 0.1 g/l Contact angle ( ) Water 35 Plurafac LF 120 Plurafac LF 221 Plurafac LF 300 Plurafac LF 305 Plurafac LF 901 Pluronic PE 6200 Pluronic RPE ,1 Result on stainless steel Contact angle ( ) ,1 Result on polyethylene Contact angle ( ) , Contact time (sec.) Contact time (sec.) Contact time (sec.)

9 Automatic Dish Washing Efficient Foam Control

10 In I&I automatic dish washing, the detergent liquor is loaded to a greater extent with food residues such as fats and proteins than in consumer dish washing. This is because the liquor is only partially replaced between cleaning operations. Hydrolyzed food residues from fats and proteins can cause significant build-up of foam. Surfactants used in I&I automatic dish washing must therefore be low- or non-foaming and also act as foam suppressors. In addition, a rinse aid replenishes the detergent liquor after being applied in the rinse cycle, so that the surfactants in rinse aid formulations must also be low-foaming and foam-suppressing. Surfactants used in I&I automatic dish washing detergents and rinse aids must: be low- or non-foaming act as foam suppressors. Dishwasher with speed sensor before test run Test method for foam control: Foam control is tested in an I&I automatic dishwasher, approximating as closely as is possible the conditions of normal use. The rotational speed of the spray arm is measured during the wash or rinse cycle in a stepwise temperature program. A high spray arm speed correlates with a low level of foam in the machine. Wash conditions are simulated by applying the surfactants in an alkaline detergent liquor with ballast soil. Tests under rinse conditions are run in an acid rinse aid liquor. = Registered trademark of BASF group Dishwasher with speed sensor during test run

11 BASF Plurafac LF and Pluronic PE and RPE products exhibit excellent foam control under different conditions: wide temperature range alkaline to acid ph various soils diverse machine types Foam control with detergent and soil loads Test conditions: 2 g/l alkaline detergent plus ml protein ballast soil T = 30 C to 60 C Model Formulation (F1) with surfactant Plurafac LF 224 Plurafac LF 303 Pluronic PE 60 Pluronic PE 80 Pluronic RPE 31 Test conditions: 0.3 g/l acid rinse aid according to DIN 511/512, no addition of soil Model Formulation (F2) with surfactant Plurafac LF 224 Plurafac LF 303 Pluronic PE 60 Pluronic PE 80 Pluronic RPE 31 Model Formulation (F1) Rotational speed (rpm) Rotational speed (rpm) Temperature ( C) Foam control with rinse aid (no soil load) Concentration in % Sodium metasilicate 48 Sodium tripolyphosphate (STPP) 42 Sodium carbonate 5 Plurafac or Pluronic product Temperature ( C) Model Formulation (F2) Concentration in % Plurafac or Pluronic product 20 Citric acid monohydrate 5 Sodium cumolsulfonate, 40% am 5 Demineralized water 70 less foam less foam