Friday, 20 June 2014

PULP GENERATION

The papers, which were collected cannot be used directly. It should be made into paper pulp before mixing with other ingredients. The following are the steps involved in the generation of pulp. 
o   First the pins, threads and other materials in the papers were removed.

o   Then the papers were teared into small pieces of papers.
 Tearing papers
o   Then, a 200 litre water tank was taken. And 2/3 rd of it was filled with water.
o   Then the small pieces of paper were immersed in the water tank. The paper pieces were immersed individually not in a bulky manner in order to make the pieces completely wet. Before immersing it into the water, the papers were weighed. The figure shows the papers were being immersed in the water tank.
Immersed paper
The papers were kept in the tank for 2 to 3 days otherwise until the paper degrade into a paste like form.
o   After that particular period, the papers were taken out and hammered.
o   The hammered papers were scratched manually on the ground.
o   Then the papers were mixed with required water. And then, papers were  grinded manually.
Grinding
o   Now the paper pulp was ready and it was stored in suitable container.
Pulp
The Above pulp generating process was tedious and uneconomical. For lab purpose only these procedures were followed. While going for mass production, the Tow mixers were recommended to reduce the cost. The Tow mixers have sharp blades and it can operate mechanically or electrically.

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