In the shape of standard VN 3260/TN 0790, Voith Paper and Trützschler Nonwovens have developed a new safety standard for wet-laid spunlaced (WLS) Nonwovens machines. According to the announcement, the standard is expected to help producers of nonwovens to ensure safe and reliable operation of their machines. It also provides the basic prerequisite for meeting expectations in respect of production and quality.
The newly developed standard combines various Voith and Trützschler safety standards for paper and textile machines in a new document and thus defines the safety requirements for new hybrid machines. The safety standard has already been incorporated by the International Standardization Organization (ISO) as the basis for developing an international standard, so as to achieve greater impact at global level.
The manufacturing process for wet-laid Nonwovens is similar to that for producing paper: a suspension consisting of water and fibers up to 40 mm long is passed over a wire on which a homogeneous fiber mat forms. The hydroentangling or spunlacing process produces bonded Nonwovens that can be textured if required. Drying and winding of the Nonwovens are done on other machine components.