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Economic solutions for solventborne tinting systems
Manfred JornaBASF, Dispersions & Pigments Division, Formulation Additives
Efka® 4330 dispersing agentLaropal® A81 grinding resin
2BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Content
Tinting Concept – Resin Minimal Pigment Concentrates (RMPC)
Introduction – Paint Production Methods
Economics – Value in use
Formulation examples – Laropal® A81, Efka® 4330
Summary
3BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Paint producers’ 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
Paint users’ requirements:
Full range of colors
New products continually
Immediate delivery (JIT)
Nil/negligible stock of paint
Lowest possible price
Production methods Paint producers’ dilemma
4BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
1. Traditional: Co-grinding of pigments in individual final resinsBlend of pigments in one grind in final resin system
2. Traditional: Single pigment grind in individual final resins5 resin systems, 20 pigments 100 premixes
Production methods
Pre-mix Grinding Paste Colored paint
5BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
3. Pigment Concentrates in a universal resinOne range of pigment concentrates for selected resin systems20 pigment concentrates for 5 final resin systems 20 premixes
Production methods
Pre-mix Grinding Pigment-paste Several colored paints
6BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Content
Tinting Concept – Resin Minimal Pigment Concentrates (RMPC)
Introduction – Paint Production Methods
Economics – Value in use
Formulation examples – Laropal® A81, Efka® 4330
Summary
7BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Clear or whitebase paint
Full mixing systemFull 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
Color or whitebase paint
Tinting system
Tinting pastes are those pigment concentrates used at a maximum
of 10% addition to adjust the shade of an already complete
paint system
Tinting concept RMPC
8BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Low viscosity
High pigment loading
Excellent compatibility
Low resin content
Long, Mid & Short oil Alkyds
PolyurethanesEpoxy
Chlorinated Rubber & NC
PolyesterBase-paint
Universal Pigment Concentrates
Tinting concept RMPC
9BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
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
Tinting concept RMPC – requirements
10BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Content
Tinting Concept – Resin Minimal Pigment Concentrates (RMPC)
Introduction – Paint Production Methods
Economics – Value in use
Formulation examples – Laropal® A81, Efka® 4330
Summary
11BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
RMPC: Pigment Concentrates in a universal resin - Laropal® A81One 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
Economics Tinting system based on RMPC
12BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Optimal use of production space, Stockholding and services
Base 1
Base 5
Base 2
Base 3
Base 4
Milling & Pigment Concentrate parkB
ase
pain
t tan
k pa
rk
Mix, color & filldepartment
Front desk
Economics Tinting system based on RMPC
13BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
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.
Color cost pigment grinding RMPC vs. traditional
Economics Tinting system based on RMPC
Efficiency in pigment grinding
Paint manufacturers sometime sacrifice the extra strength to avoid running longer grinding cycles or using better production methods.
14BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Cos
ts /
kg
Volume in liters
| | | | |1 10 100 1000 10000
co-grind
solo pigment concentrate
universal colorantsRMPC
Fixed color cost per tinted kg / ltr of paint
Economics Tinting system based on RMPC
15BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Content
Tinting Concept – Resin Minimal Pigment Concentrates (RMPC)
Introduction – Paint Production Methods
Economics – Value in use
Formulation RMPC – example Laropal® A81, Efka® 4330
Summary
16BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
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
17BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Organic pigments
Inorganic pigments
Carbon Black pigments
HCC / LCC
Universal resin 25 – 40 15 – 25 25 - 45
Solvent 15 – 30 5 – 15 25 - 40
Dispersing agent 10 – 15 3 – 10 8-15
Anti settling - 0,3 – 1,0 -
Pigment 15 - 40 45 - 65 10 - 25
viscosity to be around 500 – 3000 mPas
General composition
18BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
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
Selection of wetting and dispersing agents
Our solution: Efka® 4330 - based on CFRP technology
19BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Improved Rheology
Formulating RMPC Example Efka® 4330- Laropal® A81
20BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Improved color development
NC Nitro cellulosePU PolyurethaneTPA Thermo plastic AcrylicLOA Long oil Alkyds
Formulating RMPC Example Efka® 4330- Laropal® A81
21BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Improved color development
Formulating RMPC Example Efka® 4330- Laropal® A81
Chr
oma
25
30
35
40
45
50
232 234 236 238 240
disp: 16% Efka® 4330
25
30
35
40
45
50
232 234 236 238 240Green Hue red
Disp.: 16% Comp A
25
30
35
40
45
50
232 234 236 238 240
disp: 16% Comp B
c)
NC
2K PU
TPA
Alkyd/mel
Epoxy
LOA
NC Nitro cellulosePU PolyurethaneTPA Thermo plastic AcrylicLOA Long oil Alkyds
22BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Content
Tinting Concept – Resin Minimal Pigment Concentrates (RMPC)
Introduction – Paint Production Methods
Economics – Value in use
Formulation examples – Laropal® A81, Efka® 4330
Summary
23BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com
Summary
Comprehensive solutions for solvent-borne tinting system colorants Efka® 4330 dispersing agent
created through controlled free radical polymerization (CFRP) technologycombinable with Laropal® A81 grinding resinin combination suitable for a broad variety of BASF pigments
Leads to all-purpose grinding resin pigment pastes
with high pigment loadingsfor organic and inorganic pigmentswith low viscosity (free flowing concentrates)
Results in high pigment color strength along with a broad resin compatibility within the final application.
24BASF Dispersions & Pigments Division - Formulation Additives - www.dispersions-pigments.basf.com