The Pulping and Bleaching group at IPST has well-equipped laboratories for testing and analysis of raw materials and pulps. Standard methods for chip analysis and most pulp quality tests are available. Special capabilities include a computer controlled handsheet press with heated platens and a corona discharge instrument for surface modification of paper sheets.

Simulations of most pulping and bleaching processes can also be conducted to help you make informed decisions about your mill operations. Raw materials for pulping studies can be prepared with a Carthage chipper and Rader™ or ChipClass™ chip screens. Several batch pulping systems are available including a multi-unit mini-digester and a digester system with 4 liquor vessels for simulation of new batch and continuous cooking technologies. All conventional bleaching technologies as well as several new ones can be performed in our labs in high shear mixers. Pulp processing capabilities include laboratory screens, Valley Beater, PFI mill, and handsheet-making.

Please see our listing of specific capabilities and tests and contact us about your project needs.