LOW-DUST CHALK

LOW-DUST CHALK
Detail:
LOW-DUST CHALK
Product: Production of low dust chalk pencil.
Application: Educational aid for writing on black boards. Low dust chalk pencils have advantage of mitigating silicosis for chalk users, particularly the teachers.
Feature: Chalk pencils are manufactured from mixtures of plaster of paris, french chalk and kaolin by making a paste of the mix and casting in suitable moulds. These are dried and packed.
Commercialisation: In commercial production.
Economy: 200 boxes/day.
Investment: Rs. 0.25 lakh
Equipment: Moulds for chalk pencil, vessels, oven.
Raw materials: Plaster of paris, french chalk, kaolin, binder.
Institute: Regional Research Laboratory, Jorhat.
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