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ALL ABOUT STATIC ELECTRICITY

Static eliminators are used to eliminate static and dust. Static electricity is problem, which companies face globally. It primarily affects industries, which handle non conductive materials like plastics, paper, board, laminates and textiles. The electrostatics attraction repulsion cause materials to stick to machinery, or to each other, leading to jams, slow machine speed and poor quality and productivity.Friction, pressure and separation are the major causes of static electricity. When humidity is lower, higher static charges are generated. It becomes more noticeable in the months of winter, in dry laminates, and in air conditioned environments. Use of our superior quality neutralize static eliminator ensures solution of all these problems and results in trouble free operation, increased profits and maximum customer satisfaction


WHAT CAUSES STATIC ELECTRICITY?

The surface layer of an electrically insulating material like plastic, paper or synthetic textile is usually not electrically charged.However, the material can become electrically charged under the following circumstances:

  • Friction when the surface of a material is rubbed against a material of the same or different kind.

  • Pressure when the material is run through two rollers.

  • Separation unwrapping of plastic foil from a roll.

These processes are examples of handling that can result in an imbalance in the material’s electric charge. One surface becomes positively charged, the other one negatively. Because the material is electrically insulating, the charge cannot be conducted away through the material itself and the charge is now said to be static. The characteristics of electric charges to attract charges with opposite polarity or to repel those with identical polarity can cause immense problems during production.


EFFECTS ON MATERIAL OF STATIC ELECTRICITY?

Some materials cause or create more static electricity than others. Since static electricity is the collection of electrically charged particles on the surface of a material, various materials have a tendency of either giving up electrons and becoming positive (+) in charge or attracting electrons and becoming negative (−) in charge. The Triboelectric Series is a list of materials, showing which have a greater tendency to become positive (+) and which have a greater tendency to become negative (−). The list is a handy tool to determine which combinations of materials create the most static electricity.

TRIBOELECTRIC SERIES

It can be seen that some objects easily acquire a positive charge, while others easily acquire a negative charge, depending upon the material of the object. Also, if objects consisting of materials located at greatly differing parts of the table shown at left touch each other, the amount of static electricity will become large. For example, if static electricity is generated by copper and rubber for the reason indicated in the figure below, the copper will acquire a positive charge, and the rubber will acquire a negative charge.The charging electric potential acquired by the human body and fluororesin is larger than that acquired by copper and rubber.

DIFFERENT TYPES OF PROBLEMS CAUSED BY STATIC:

  • Causes dust attraction,leads to improper stacking.

  • Cause problems in printing.

  • Sheet feeding problems.

  • Materials tearing, jamming or curling.

  • Hazardous sparks or shocks to person.

  • Product sticking to itself,rollers or machine parts.

  • Static cling causes handling problem.

APPLICATIONS OF STATIC:

  • Packaging

  • Plastics

  • Printing

  • Paper

  • Food

  • Medicals

  • Pharmacueticals

  • Automotive

  • Electronics

  • Textiles

  • Optics

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