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Manufacturing

Black Insulating Tape

This project profile covers the manufacturing of black insulating tape, which is extensively used for electrical insulation in households, motors, ovens, and furnaces, as well as by cable manufacturers to cover conductors. The production process involves mastication and mixing of rubber compounds, spreading the solution onto cotton fabric, and subsequently slitting, winding, labeling, and packing the finished rolls.

Project cost & finance

Cost of Project

figures in ₹ Lakhs

Building & Civil Work4
Plant & Machinery9
Furniture & Fixtures0.46
Other Misc. Assets0.5
Working Capital4.04
Total18

Means of Finance

figures in ₹ Lakhs

Own Contribution1.8
Term Loan12.56
Working Capital Loan3.63
Total18

Raw materials & machinery

Machinery & equipment6

Raw materials10

Manufacturing process

  1. Prepare the rubber compound by mixing rubber, asbestos powder, resin, carbon black, and castor oil into a homogeneous mass in a mixing mill.
  2. Mix turpentine oil or benzene into the rubber mass in the mixing mill to form a fluid solution.
  3. Spread the fluid solution uniformly over the cotton fabric using a spreading machine with doctors blade technique.
  4. Cut the coated fabric to the required width on a slitting machine.
  5. Wind the cut strips into rolls of desired length on a winding machine, apply side labels, and pack in polyethylene films.

Market

Black insulating tapes are items of everyday use in all electrification works for joining cables and conductors. Large demand exists due to continuous electric generation and distribution network expansions. Sales are primarily conducted through electrical stores.

From the project report

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