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PULPING AND BLEACHING

  • R&D work on raw material handling & preparation, storage practices and quality improvement 
  • Provide technical services to paper industries, government agencies and other organizations in the area of chemical analysis of fibrous raw materials, fiber characterization, fibre furnish analysis of paper and board and analysis of chemicals used in papermaking, trouble shooting and product quality development. .
  • Better understanding of pulping and bleaching processes & quality improvements
  • Development of new environmental friendly pulping and bleaching processes
  • Additive Pulping optimizations for various types of cooking aids
  • Reduction of chemical pulp production cost in terms of yield gain and  reduction in bleaching chemicals
  • International and National sponsored R&D work for paper and allied industries and other organizations. .
  • Imparting   HRD services to mill personnels, International and National students from different organization  for skill development and up-gradation of knowledge in the area of  Raw materials storage and handling , raw materials chemical analysis, pulping, bleaching, chemical analysis, fibre characterization and furnish analysis etc. 

» Raw Materials

  • Upgradation and Cleaning of fibrous and non fibrous raw materials
  • Storage and handling of raw materials
  • Proximate Chemical Analysis of fibrous raw materials

» Pulping

  • Prehydrolysis of different raw materials and optimization of conditions like time, temp and chemical dose
  • Optimization of chemical cooking conditions for different raw materials
  • Optimization of cooking chemicals for different grade of chemicals and high yield pulps
  • Influence of pulping additives in improving pulp yield and pulp quality etc
  • Mechanical pulping of different raw materials for production of high yield pulp

» Bleaching

  • Bleaching of wood / non-wood pulps
  • Optimization of Bleaching chemical doses and bleaching conditions to achieve the targeted brightness.
  • High brightness bleaching of wood / non-wood pulps
  • ECF / TCF bleaching of different pulps
  • Reduction of AOX during bleaching of different pulps
  • Oxidative and reductive bleaching of different pulps


» HRD Services

  • In house and mill site training courses are being organized for mill personnel and students from different organization in the area of raw material handling, raw material up-gradation, chemical analysis, pulping, bleaching, pulp analysis, fiber morphological studies and furnish analysis of pulp, paper and board.
  • M.Sc. Programme in “Cellulose and paper technology” students in areas of pulping and bleaching and washing of pulp for 3rd and 4th semesters in every year. This course is run jointly by CPPRI and FRI, Dehradun in which the 1st year of the programme is conducted at FRI and 2nd year at CPPRI.
  • Dust making machine
  • Laboratory chipper
  • Chip classifier
  • Series digester consists of six bombs each of 2.5 liters.
  • Series digester consists of six bombs each of 2.5 liters with facility of oxygen pulping / pre-treatment.
  • Tumbling Digester
  • Research Digester
  • Laboratory “Serla” screen of slot width 0.2, 0.25. 0.3 mm.
  • Disc Refiner (Sprout Waldron)
  • Quantum Mixer for Oxygen and ozone bleaching
  • Ozone generator for ozone bleaching of pulp
  • Capillary Viscometer for CED Viscosity of pulp.
  • Elrepho brightness tester
  • UNIDO project “Development and Adoption of Appropriate Technologies and Practices for Enhancing the Sustainability of the Indian Paper and Pulp Industry” supported by Department of Industrial Policy and Promotion (DIPP) under Ministry of commerce and Industry, Govt of India.
  • Ozone bleaching of mixed agro-residue pulp
  • Complete know-how on Utilization of Rice Straw and other Non Conventional Raw Materials for Production of Various Grades of Pulp.
  • Storage and preservation of fibrous raw materials used in Indian pulp   paper Industry
  • Production of unbleached and bleached pulp in laboratory and pilot plant scale for Empty fruit bunches (EFB) sponsored by M/s. EKO Pulp & Paper SDN BHD, Malaysia
  • New innovative post digester pulp pre-treatment technology-CPPT (CPPRI Pulp Pre-treatment Technology)
  • Studies of ozone Treatment of indigenous raw material Pulp for better bleachability
  • Laboratory & pilot plant trials of Canadian wheat straw (International) sponsored by Prairie Pulp & Paper Inc., Canada.
  • Pilot plant trial of KOH-AQ pulping of bagasse sponsored project M/S Queensland University of Technology, Australia
  • Increase in Brightness Ceiling of Agro Residue Pulps in Cost Effective Manner Specifically
  • Improvement in Selectivity of Oxygen Bleaching
  • Successfully completed laboratory and pilot plant extraction of pulping trials of hardwood M/s. ITC Life Sciences and Technology Centre, Bangalore
  • Laboratory and pilot plant pulping and bleaching trials of Agrifibres M/s. ITC Life Sciences and Technology Centre, Bangalore
  • Laboratory and pilot plant trial of core jute (waste) M/s. National Jute Board, Kolkata
  • Laboratory and pilot plant trials of coir fibers sample M/s. Indian Institute of Carpet Technology Bhadoi (M.P.)
  • Production of BCTMP Pulp from the low density wood variety Melia Dubia, eucalyptus and poplar wood for different mills 
  • Preparation and characterisation of dietaryfibre from hard wood
  • Research on wood quality and physical properties of pulp wood fibres as the basis for development on eucalyptus and subabul plantations