Economic solutions for solventborne tinting systems Efka 4330 dispersing agent Laropal A81 grinding resin

Transcription

1 Economic solutions for solventborne tinting systems Efka 4330 dispersing agent Laropal A81 grinding resin Manfred Jorna BASF, Dispersions & Pigments Division, Formulation Additives

2 Content Introduction Paint Production Methods Tinting Concept Resin Minimal Pigment Concentrates (RMPC) Economics Value in use Formulation examples Laropal A81, Efka 4330 Summary 2

3 Production methods Paint producers dilemma Paint producers requirements: Paint users requirements: Limited number of colors Minimum products/changes Large batch sizes, minimum color changes, long runs Regular predictable demand Stock of final product at user Highest possible price Full range of colors New products continually Immediate delivery (JIT) Nil/negligible stock of paint Lowest possible price 3

4 Production methods 1. Traditional: Co-grinding of pigments in individual final resins Blend of pigments in one grind in final resin system Pre-mix Grinding Paste Colored paint 2. Traditional: Single pigment grind in individual final resins 5 resin systems, 20 pigments 100 premixes 4

5 Production methods 3. Pigment Concentrates in a universal resin One range of pigment concentrates for selected resin systems 20 pigment concentrates for 5 final resin systems 20 premixes Pre-mix Grinding Pigment-paste Several colored paints 5

6 Content Introduction Paint Production Methods Tinting Concept Resin Minimal Pigment Concentrates (RMPC) Economics Value in use Formulation examples Laropal A81, Efka 4330 Summary 6

7 Tinting concept RMPC Full mixing system Full mixing systems are based on Resin Minimal Pigment Concentrates (20-30%) suitable to produce complete paints by mixing with clear resins giving a full range of shades including deep tones but are also suitable as tinting concentrates Tinting system Clear or white base paint Tinting pastes are those pigment concentrates used at a maximum of 10% addition to adjust the shade of an already complete paint system Color or white base paint 7

8 Tinting concept RMPC Universal Pigment Concentrates Low viscosity High pigment loading Excellent compatibility Low resin content Long, Mid & Short oil Alkyds Base-paint Chlorinated Rubber & NC Polyester Polyurethanes Epoxy 8

9 Tinting concept RMPC requirements Consistent color development Excellent compatibility with the resin systems No adverse effect on resistance properties of the base paint Stability to settling, syneresis and drying out over time No flooding, floating, flocculation, seeding Low viscosity at high pigment content Free-flowing (pumpability) Ease of incorporation Capacity for reproducible production Compliance with the regulations and cost efficiency 9

10 Content Introduction Paint Production Methods Tinting Concept Resin Minimal Pigment Concentrates (RMPC) Economics Value in use Formulation examples Laropal A81, Efka 4330 Summary 10

11 Economics Tinting system based on RMPC RMPC: Pigment Concentrates in a universal resin - Laropal A81 One range of pigment concentrates for selected resin systems 20 pigment concentrates for 5 final resin systems 20 premixes Economic advantages: More effective inventory control for raw materials as well as finished coatings High efficiency in production of small batches Increased production capacities, better usage of space Economic use of grinding equipment Quick deliveries JIT More color offering, even for small batches Easily broader product offering Fix color price / kg 11

12 Economics Tinting system based on RMPC Optimal use of production space, Stockholding and services Milling & Pigment Concentrate park Base 1 Base 2 Base 3 Base 4 Base 5 Base paint tank park Mix, color & fill department Front desk 12

13 Economics Tinting system based on RMPC Efficiency in pigment grinding Opacity / transparency / tint strength During grinding the pigment undergoes significant changes in hue, tint strength and transparency. Not getting the maximum tint strength or transparency can be very costly. Paint manufacturers sometime sacrifice the extra strength to avoid running longer grinding cycles or using better production methods. Color cost pigment grinding RMPC vs. traditional 13

14 Economics Tinting system based on RMPC Fixed color cost per tinted kg / ltr of paint co-grind Costs / kg solo pigment concentrate universal colorants RMPC Volume in liters 14

15 Content Introduction Paint Production Methods Tinting Concept Resin Minimal Pigment Concentrates (RMPC) Economics Value in use Formulation RMPC example Laropal A81, Efka 4330 Summary 15

16 Requirements versus BASF s synergistic offering for RMPC Requirements Universal use in different paint systems Easy to incorporate Good flow properties and compatibility High reproducibility Color, color strength High pigment loading No adverse effect on the properties of the coating system Shelf life (no settling, no flocculation) Laropal offers Colorless resin Broad compatibility Good solubility in many solvents Good light and weather fastness Excellent pigment wetting Outstanding rheological properties CFRP offers Strong viscosity reduction High pigment loadings Strong pigment stabilization Resistance to flooding, floating and flocculation Wide compatibility in many resin systems No negative effect on light and weather fastness 16

17 General composition Organic pigments Inorganic pigments Carbon Black pigments HCC / LCC Universal resin Solvent Dispersing agent Anti settling - 0,3 1,0 - Pigment viscosity to be around mpas 17

18 Selection of wetting and dispersing agents The screening and selection of a suitable wetting and dispersing agent depends on the desired properties: Compatibility with the resin systems Color and storage stability Coloristic character, Delta Cie Lab Viscosity reduction Anti flooding and floating effect Pigment loading Grinding efficiency Our solution: Efka based on CFRP technology 18

19 Formulating RMPC Example Efka Laropal A81 Improved Rheology 19

20 Formulating RMPC Example Efka Laropal A81 Improved color development NC PU TPA LOA Nitro cellulose Polyurethane Thermo plastic Acrylic Long oil Alkyds 20

21 Formulating RMPC Example Efka Laropal A81 Improved color development 50 disp: 16% Efka Disp.: 16% Comp A 50 disp: 16% Comp B NC K PU TPA Alkyd/mel Chroma Epoxy LOA c) NC PU TPA LOA Green Hue red Nitro cellulose Polyurethane Thermo plastic Acrylic Long oil Alkyds 21

22 Content Introduction Paint Production Methods Tinting Concept Resin Minimal Pigment Concentrates (RMPC) Economics Value in use Formulation examples Laropal A81, Efka 4330 Summary 22

23 Summary Comprehensive solutions for solvent-borne tinting system colorants Efka 4330 dispersing agent created through controlled free radical polymerization (CFRP) technology combinable with Laropal A81 grinding resin in combination suitable for a broad variety of BASF pigments Leads to all-purpose grinding resin pigment pastes with high pigment loadings for organic and inorganic pigments with low viscosity (free flowing concentrates) Results in high pigment color strength along with a broad resin compatibility within the final application. 23

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