What is BS EN 13676 - Pinholes in polymer coated paper about?
Thin-film barrier layers are used as insulating layers, diffusion barriers or encapsulation coatings. The problem in thin film deposition is always to prevent pinholes to obtain perfect layers.
BS EN 13676 specifies a procedure for the detection and estimation of pinholes in polymeric layers on paper and board. BS EN 13676 is applicable to all kinds of polymeric coated paper and board.
The principle says that the sample is brought into one-side contact with a colouring solution for a specified time. The surplus solution is removed, and any coloured spots (pinholes) are counted. The result is expressed as the number of pinholes per square decimetre of paper or board.
Who is BS EN 13676 - Pinholes in polymer coated paper for?
BS EN 13676 on pinholes in polymer coated paper is useful for:
- The paper and board industry
- Paper mills
- Paper and paperboard manufacturing companies
- Manufacturers and distributors for paper and board
- Laboratories for paper and board
- Paper analysis researchers
Why should you use BS EN 13676 - Pinholes in polymer coated paper?
Paper and board are sometimes provided with a polymer layer in order to give them barrier properties. The barrier properties of these converted materials are influenced by the presence of intentional or unintentional small holes in the polymer layer, so called pinholes. Pinholes can make it inappropriate to use certain protocols, e.g., those involving liquid food simulants, to test converted paper and board intended for food contact for migration in order to assess compliance with laws or regulations.
BS EN 13676 guides you with a test procedure to detect pinholes in polymeric layers on paper and board. BS EN 13676 also gives guidance on sampling and preparation of samples. BS EN 13676 guidelines help you to detect and identify pinholes in polymer coated paper and board intended for food contact.