Bentonite Clays in ceramics: is there any alternative?

By Miguel Ten 9. November 2017

Bentonite  has been used in ceramics for many years due to the way it  performs in terms of plasticity and workability. Nonetheless, there are some alternative approaches that may ease its replacement, as they show some undesirable side effects when introduced into formulations.

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Temaer: Decorative, bentonite

How to improve Lubrication of the molds during your ceramic process

By Miguel Ten 28. September 2017

The pressing stage is one of the most demanding in the production of ceramic bodies. Therefore, gaining any improvements here is directly translated into savings along the production process. These improvements will help to optimize the total costs of the manufactured products by reducing losses whilst improving the quality of the shaped materials.

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Temaer: Decorative, Refractory, Plasticity, lubrication

Reduction of plastic clays usage on the production of tiles - is it possible?

By Miguel Ten 10. August 2017

One of the main challenges of the Ceramic Industry is related to the lack of good quality plastic clays. Though there are many reliable sources, its cost is banning industrial usages, especially in a moment when tiles are becoming larger and larger. Furthermore, if we consider how market is moving towards higher performance requirements, this situation is not showing any ways of changing

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Temaer: Decorative, Plasticity

Different methods for plasticity measurement of a ceramic material

By Rosa Mediavilla 27. July 2017

Plasticity is the characteristic behaviour of a ceramic material to become permanently deformed after the application of an external force. This property is the most characteristic one in clays, and there are some factors that influence the plasticity and they should be considered in plasticity measurements:

  • Water physical characteristics like, viscosity, surface tension…
  • Particle size distribution of the solid sample and its specific surface
  • Chemical and mineralogical composition of samples
  • Effect of the additives added to the clay/water system
  • Sample temperature
  • The way to prepare the sample, particularly the energy used to mix and to process clay, water & additives

Plasticity is defined as the capacity to be deformed without being broken. Many methods available to measure it, and they are classified into two groups: direct and indirect methods.

Table1. Direct and indirect plasticity methods.

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Temaer: Decorative, Structural, Plasticity

Clay formulation improvement for a better decorative tile production

By Miguel Ten 13. July 2017

Clay body formulation has been in a continuous evolution since the modern-day tile industry trended towards large and more aesthetic in appearance. This evolution is calling for adjustments to achieve required performances whilst optimizing production costs.

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Temaer: Decorative

Porcelain tile manufacturing: How to reduce breakage

By Yaiza Paños 29. June 2017

The video underneath shows an Indonesian factory producing large porcelain tiles. These white body tiles measure 120cmx60cm and, as you can see, due to its large size and thinness, they break easily during the production process, especially in those plants where layout imposes direction and/or level changes. Breakages and cracks are usual and happen for several reasons. The good news is that there are also various ways to deal with them. In the video, adding additives was the most effective way to mitigate this breakage rate.

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Temaer: Decorative

Decorative tiles from low plasticity clays: How to overcome challenges and keep high quality?

By Miguel Ten 15. June 2017

The clay does not last forever and, with limited deposits and high market demands, the best clay is very expensive. Add to that the conflict in Crimea, where the Russian occupation has choked the supply of cheap Ukrainian high-quality clay, and you face a situation where lack of supply has caused the raw material prices to increase five times since the manufacturers started using it. This is, of course, critical for the industry, but the forward leaning manufacturers go looking for alternative sources.

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Temaer: Decorative, Plasticity, case study

4 cost effective ways to improve Ceramic Green Strength

By Miguel Ten 30. May 2017

Having a less fragile clay body after the tile is pressed is not only down to buying expensive high plasticity clay. There are workarounds to increase the Ceramic Green Strength without emptying your pockets. Read on to find a solution that fits your production.

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Temaer: Decorative, Green Strength

How to avoid tile Breakage when producing large and thin tiles

By Miguel Ten 16. May 2017

Market trends are not easy to predict, but sometimes they are even difficult to evaluate in hindsight. The popularity of large ceramic tiles was initially a result of creative Italian producers experimenting with their product. Why they became so popular is still subject to discussions, but their impact on the market means that manufacturers need to adjust their business models to be competitive.

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Temaer: Decorative

How to replace Ukrainian clay in decorative tile production?

By Miguel Ten 27. March 2017

Hard trends in tile production clash with geopolitical issues when we try to explain the reasons why producers look for alternatives to Ukrainian clay these days.

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Temaer: Decorative

BioKeramAdditive-A

A blog from BioKeram

BioKeram is a new range of products from Borregaard, the world's leading supplier of high performance bipolymers to the ceramics industry, with more than 50 years experience in the ceramics market. With this blog we aim to share our knowledge regarding ceramic process optimization.


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