The blue pigments highlighted in this blog are of the Pigment Blue 15 type. These are the copper-phthalocyanine blue pigments and specifically the C.I Pigment Blue 15:0 and 15:3 types.
C.I Pigment Blue 15:0 - this is the alpha crystalline form that usually gives a reddish shade to the pigment. It also tends to be unstable but has very strong colour strength. It has very resistant properties to acids, alkalis, solvents, plasticisers, and the like. The pigment is also lightfast and heat stable. The pigment tends to be used in water-based inks, industrial and decorative paints, and coil coatings.
C.I Pigment Blue 15:3 - this is the beta form and transparent green shade of the copper phthalocyanines. It is completely resistant to acids, alkalis, solvents, plasticisers etc. It tends to have strong tinting powers but is slightly weaker than the alpha forms.
C.I Pigment Blue 15:3 is the most widely used blue pigment and is used in process printing for a wide variety of inks, from water-based to UV systems.
Lankem has developed a new range of dispersing agents based on our new BioLoop technology that offers improved labelling and environmental profiling.
This guide covers three areas:
• The new BioLoop dispersing agents
• Traditional dispersing agents
• Additives to produce Universal Tinting
BioLoop Dispersing Agent - View technical report
The following formulations are based on our BioLoop technology and will produce compatible, stable aqueous dispersions.
The benefits of using a BioLoop product are:
» No skin or eye irritancy
» Good ecotoxicity
» Based on the BioLoop technology
» Powerful dispersing properties
» Low flocculation
» VOC free
Blue 15 | % |
Pigment Blue 15.0 | 45 |
Lansperse BA6 | 22 |
PEG 400 | 4 |
Biocide | As required |
Dfoam AR2 | 0.1 |
Water | 28.9 |
Blue 15.3 | % |
Pigment Blue 15.3 | 45 |
Lansperse BA6 | 22 |
PEG 400 | 4 |
Biocide | As required |
Dfoam AR2 | 0.1 |
Water | 28.9 |
Traditional Surfactant Systems
Out traditional range of dispersing agents have a proven track record in terms of high performance.
Blue 15.0 | % |
Pigment Blue 15.0 | 45 |
Lansperse DS200W | 11 |
Lansperse DS80 | 2 |
PEG 400 | 4 |
Biocide | As required |
Dfoam AR2 | 0.1 |
Water | 37.9 |
Blue 15.3 | % |
Pigment Blue 15.3 | 45 |
Lansperse DS200W | 11 |
Lansperse DS80 | 2 |
PEG 400 | 4 |
Biocide | As required |
Dfoam AR2 | 0.1 |
Water | 37.9 |
Anionic surfactant system
The anionic formulation will produce pigment dispersions suitable for the mass colouration of paper, the colouration of soaps and cosmetics, household cleaners etc.
Blue 15.3 | % |
Pigment Blue 15.3 | 20 |
Lansperse DIS145 | 4.2 |
Lansperse UT57 | 3.2 |
Kelsan Gum | 0.5 |
Dfoam AR2 | 0.1 |
Biocide | As required |
Water | 72 |
Universal Tinting
The following Universal Tinting formulation guide will produce an aqueous-based tinter that will be compatible with both aqueous and solvent-based decorative coatings.
Blue 15.3 | % |
|---|---|
Water | 32.5 |
Smectite Clay | 0.3 |
Lansperse DS80 | 2 |
Lansperse DS200W | 5 |
Dfoam AR2 | 0.1 |
PEG 400 | 11 |
Biocide | As required |
Pigment Blue 15.3 | 31 |
Barium Sulphate | 10 |
Lansperse UT57 | 8 |
Monoethanolamine | 0.1 |
Product Profiles
• Lansperse BA6 is a 40% active BioLoop dispersing agent.
• Lansperse DS80 is an 80% active traditional anionic dispersing agent.
• Lansperse DS200W is an 80% active traditional nonionic dispersing agent.
• Lansperse DIS145 is an anionic powder - 100% active.
• Lansperse UT57 is a powerful compatibilizer to aid dispersion - typically 93% active.
• Dfoam AR2 is a non-silicone based defoamer.
These recommendations are for guidance only and the formulation should use a ladder
approach to find optimum addition levels of the dispersing agents due to difference in pigment types.
Comentarios