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Oliver + Batlle at Paint & Coatings 2021

Paint & Coatings, an international event bringing together the main companies working in the surface treatment and paint technology sector, will be held on 16 and 17 November at Fira Barcelona.

As a company specialised in developing machinery for manufacturing paint and related products, Oliver + Batlle will be present at the event, not only on the expo -where you can visit us at Stand 108-, but also at online events and webinars that will take place during the months leading up to the event. Let’s have a look at some of them.

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tixotropia thixotropy
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What is thixotropy and how does it influence the manufacturing of paint and related products?

Thixotropy is a property of some products which change their viscosity and become more fluid when subject to constant shear force, e.g., in the mixing stage. The longer the fluid is under shear stress, the less its viscosity.

In normal conditions, a thixotropic fluid is highly viscous (equilibrium viscosity) but becomes liquid or more fluid when subject to shear force. This type of product takes certain time to reach its equilibrium viscosity when an instantaneous change in shear rate occurs. For example, when a mixer’s shear work is stopped or slowed down, the fluid tends to reach equilibrium viscosity, which is always higher than its viscosity when it is being mixed. Read more

molienda en húmedo, wet grinding
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How to optimise the wet grinding process for paint production? The wet grinding process occurs when a product is transformed from solid to liquid, regardless of its viscosity: paints, inks, enamels, nail varnish, among others. In this process, agglomerates that were not separated in the dispersion phase (due to the electro-physical bonding of some components) […]

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acabado de pinturas, paint finishing
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The paint finishing stage in the manufacturing process

The paint finishing stage in the manufacturing process is, together with the dyeing stage, part of the final mixing phase. Both are performed just before filling.

Following the dispersion and grinding phase, discussed in a previous article, a product finishing or completion stage is required. Mixing systems are used in this new stage, by means of mixing turbines, to obtain a turbulent motion of the product. The end goal of the paint finishing stage is to achieve a homogeneous mixture from several liquids, and thus create a product that complies with the established properties that should characterise the final product. Read more

tipos de residuos en la fabricación de pinturas
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Types of waste in the paint and related products industry

Growing environmental awareness together with existing regulations on the subject leads to investments and adaptations being made to production processes of paint and related products in order to meet requirements.

Taking into account the environmental hazards and the types of waste generated in the industry, it is essential to be able to make strategic decisions that lead to the optimisation of production and the reduction in its environmental impact. This will lead to a more sustainable and environmentally friendly industry. Read more