Dustless Chalk (School Chalk)

As found in nature, chalk has been used for drawing since prehistoric times, when, according to archaeologists, it helped to create some of the earliest cave drawings. Later, artists of different countries and styles used chalk mainly for sketches, and some such drawings, protected with shellac or a similar substance, have survived. Chalk was first formed into sticks for the convenience of artists. The method was to grind natural chalk to a fine powder, then add water, clay as a binder, and various dry colors. The resultant putty was then rolled into cylinders and dried. Chalk did not become standard in schoolrooms until the nineteenth century, when class sizes began to increase and teachers needed a convenient way of conveying information to many students at one time. Not only did instructors use large blackboards, but students also worked with individual chalkboards, complete with chalk sticks and a sponge or cloth to use as an eraser.

Project Report Covers:

Introduction
Uses and Applications
Properties
Market Survey with future aspects
Present Manufacturers
B.I.S. Specifications
Manufacturing Process with Formulae
Cost Economics with Profitability Analysis
Capacity
Land & Building Requirements with Rates
List & Details of Plant and Machinery with their Costs
Raw Materials
Details/List and Costs
Power & Water Requirements
Labour/Staff Requirements
Utilities and Overheads
Total Capital Investment
Turnover
Cost of Production
Break Even Point
Profitability
Land Man Ratio
Suppliers of Plant & Machineries and Raw Materials.