What is ISO/TS 14778 about?
ISO/TS 14778 is a standard that serves the technical specifications for the measurement of the water contact angle using the optical method that facilitates the evaluation of wettability, surface energy and interaction with different liquids for paper and board.
ISO/TS 14778 specifies the method for optical assessment of the contact angle between water and the surface of paper and board, where the process of droplet formation, application to planar substrates or measurement of the droplet shape in contact with the solid is performed by automated equipment.
ISO/TS 14778 defines instrumental capabilities which show the limits of measurement. The instrumental capabilities use a digital image capturing system operating at a minimum of 50 frames per second and ne the ability to perform the first measurement after no more than 20 ms to 40 ms contact between the droplet and substrate.
Note: ISO/TS 14778 is not applicable to structured materials
Who is ISO/TS 14778 for?
ISO/TS 14778 on water contact angle in paper and board applies to:
- Distributors and dealers of paper and board
- Paper mills and manufacturers
- Paper industries
- Testing houses for paper and board
Why should you use ISO/TS 14778?
Contact angle measurement is used to predict how liquids interact with paper surfaces. Both manual and automated apparatus are available for optical measurement of contact angle, but automated equipment is preferred.
ISO/TS 14778 shows you the most common form of test, using water as probe liquid and from the data a probable interaction between the paper surface and another liquid with comparable surface tension and viscosity characteristics is often inferred.
ISO/TS 14778 gives you extensive information on principle, apparatus, sampling, conditioning and procedures which helps to determine water contact angle in paper and board accurately and automatically.
ISO/TS 14778 gives its users a predictive tool for carrying out functions such as assessing writing, ruling or printing quality with water/solvent-based inks, for gluing applications, for coating applications, for barrier or release coatings, in various industrial applications.
