A tarpaulin is a large sheet of strong, flexible, water-resistant or waterproof & fire resistant material, often cloth such as canvas or polyester coated with polyurethane, or made of plastics such as polyethylene (LDPE & HDPE) . LDPE tarpaulin sheet is mainly used as a protective covering from harsh weather conditions for domestic and industrial purposes. LDPE tarpaulins are often used in construction sites as scaffolding screens as well as for marketing purposes like billboards, advertisement banners etc. HDPE tarpaulins are made from premium quality woven HDPE fabric laminated with LDPE on both sides. There are various qualities and thicknesses available which are made using multiple layers of HDPE sandwiched between layers of LDPE on the outside. This is widely used for transportation purposes.Each tarpaulin is made with panels of even tone and is U.V. stabilised by incorporating U.V additives in it. A border is made and a rope is provided along the border to provide strength.
Why Bajaj ?
good strength- weight ratio
Heat stability and light fastness
Added Modifiers for more strength
resistive to stains
Trouble shooting guide
|FILM PUNCTURE||Hold up particle||Clean the die lip , optimize temperature profile.|
|TAPE BREAKAGE||Temperature profiles||Check hot plate temperature, reduce quench tank temperature|
|Die build up||Set die gap|
|LOW TENACITY (TENSILE STRENGTH)||Temperature profiles||Increase oven / hot plate temperature|
|POOR ADHESION / DELAMINATION||Improper polymer melt getting on to the substrate||Increase barrel temperature between 280-300c.|
|Lack of chemical bonding||Increase air gap between die and nip roll for better bonding / adjust the speed.|
|Improper material content||Adjust LDPE % on HDPE fabric coating.|
|Void in polymer melt||Pre-heat properly to avoid moisture or avoid volatile content in polymer .|