NIR analysis of paint
Near-Infrared Spectroscopy (NIR) can be used in paint production to measure various parameters. Here are some common parameters measured with NIR in paint applications:
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Measuring the composition of paints with NIR
NIR can be used to analyze the chemical composition of paints. It can provide information about the concentrations of various components, such as pigments, binders, solvents and additives.
Want to measure moisture content in paint with NIR?
The moisture content in paints is an important parameter that can influence the quality of the paint. NIR can be used to measure and control the moisture content. Moisture measurement with NIR is often used when you also want to measure other parameters with the same instrument.
Otherwise, we recommend a separate moisture measurement. A separate moisture measurement may also be advised in some other situations.
Photo: In-line moisture measurement with microwave technology from TEWS is widely used by paint manufacturers
Measuring pigment concentration with NIR
NIR can measure pigment concentrations in paints, allowing manufacturers to maintain color consistency and accurately control the amount of pigment.
Measuring viscosity of paint with NIR
As with coatings and adhesives, NIR can provide indirect information about the viscosity of paints through correlations with chemical composition and other properties. However, accurate viscosity measurements may require specialized viscometers.
Photo: Sofraser's MIVI viscometer works according to resonance frequency technology, which offers many advantages for high-viscosity liquids, such as (most) paints.
Monitor paint drying time
NIR can be used to monitor the drying time of paints by measuring changes in moisture content. This is important to ensure the efficiency of the drying process. Also read "measuring moisture content" above for a separate, extremely accurate moisture measurement in paint.
Measuring binder quality of paint with NIR
The quality of the binder in paints influences the durability and adhesion properties. NIR can provide information about the composition and properties of the binder.
Measuring solvent content of paint with NIR
Measuring solvent content in paints is important for quality control and environmental management. NIR can do this in a fast and non-destructive manner.
Color measurement in paint with NIR
NIR can be used for color measurement and color control in paints. This helps maintain consistent color quality in the paints produced.
Molecular structure of paints
NIR can provide information about the molecular structure of polymers, resins and other components in paints. This can be valuable in understanding the properties and performance of the paint.
Quality of raw materials in paints
NIR can be used to check the quality of raw materials in paints. This allows the producer to identify impurities or variations in the composition.
Summary about NIR in paint production
The use of NIR in the paint industry offers advantages such as rapid analysis, non-destructive measurements and real-time process control capabilities. As always, it is important to tailor the NIR system to the specific needs of the production environment and to develop calibration curves for accurate measurements.
Contact Inventech today
NIR analysis of paint
Inventech is the speciazed dealer of several up market brands for measuring NIR in paints