LAC INSECTS - PowerPoint PPT Presentation

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LAC INSECTS

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  1. LAC INSECTS

  2. LAC INSECTS Lac is the resinous protective secretion produced by a kind of scale insect called laccifer lacca. They secrete a brown resinous substance called the lac. The minute red coloured larva of this insect settles on succulent shoots of the host plants. While growing they secrete a resinous material which covers them.

  3. Lac bug LAC INSECTS • The important trees needed for lac encrustation are the kusum, the ber, palas, babul, and sal. • These trees are common in the western ghats.

  4. USES OF LAC • Lac is one of the most versatile natural resinous material. • It is useful in the plastics, electrical , adhesive, leather, wood finishing and other industries . • In the electrical industry it is used in the form of insulating varnishes and moulded insulators. • It possesses very good adhesion to mica.

  5. USES OF LAC • It is an ingredient of varnishes, polishes, finishes wood used for protective and decorative purposes. • It is a principal ingredient of sealing wax. • -- also used in the manufacture of • printing and water proof inks, • optical frames, • glazed paper, • dental plates, • wax crayons, • nail polishes, • ammunition, • and bangles.

  6. End