Product Details
Corona Discharge Treater
Ahmedabad
A Quality Product from
SWATI POLYPACK [View Profile]
Ahmedabad - India
Description :
In the packaging industry , plastic films or webs are finding more and more applications. The plastic film today includes many different materials and new permutations and combinations of materials are added. The only problem encountered by the industry is that of plastic adhesion. A major component of these problems is due to the fact that many plastics have chemically nonporous surfaces with low surface tension i.e. most plastics are hydrophobic and are not wettable. These properties result in secondary assembly and decorating concern - bonding, printing, coating and painting.
Surface pre-treatment on today's high performance engineering resins solve many adhesion problems while increasing bond strength performance. As a general rule, acceptable bonding adhesion is achieved when the surface energy of a substrate is approximately 10 dynes/cm greater than the surface tension of the liquid. In this situation the liquid is said to wet out or adhere to the surface. Surface Tension which is the measurement of surface energy is the property, due to molecular forces, by which all liquids through contraction of the surface tend to bring the contained volume onto a shape having the least surface area. The higher the surface energy of the solid substrate relative to the surface tension of a liquid, the better its wettability.
Corona Treatment
Corona Treatment is a process of high speed oxidation which create polar molecules on the film surface. The energy of the corona will break the bonds of the atomic structure of the substrate. The oxygen rich ozone developed by the corona discharge will readily fill the open valancies which create a charge surface thus improving the surface characteristics and wettability. The Treated surface tends to go back to it's original dyne level after a certain period of time. This Decay of Treatment is exponential in nature and vary for different type of materials, it's additive content and other factors. Proper packaging reduces the rate of decay. Generally the effect of treatment remains for about a month.
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SWATI POLYPACK deals in :
Manufacturers and Exporters of Plastic Machineries like Induction Cap sealing Systems, Corona Discharge Treater, Seals, Tools, Components & Accessories for Dyes and Moulds, Master Batch, Colour Packets, PCRP Whitener [Tinopol] - for Plastics & Aerosols, Speciality Lubricant, Silicone Products & Maintenance Products, Extrusion Plants, Injection Moulding Machine, Semi and Fully Automatic Pet Stretch Blow Moulding Machines, Industrial Heaters & Thermocouples, High Speed Mixers, Chenpet Pet Preform for manufacturing Pet Bottles & Jars.
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