Blown film extrusion line CE-ABA
for HDPE3-layers

blown film extrusion line
blown film extrusion line
blown film extrusion line
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Characteristics

Type
blown film
Treated material
for HDPE
Other characteristics
3-layers

Description

Producing T-shirt bags with 3 layer blown film machine significantly reduces cost In some markets such as Turkey, Thailand and Vietnam where T-shirt bag production has become extremely competitive, film producers are now replacing their existing mono layer extruders with ABA 3 layer blown film machines, mainly to save production cost. The A-B-A blown film machine consists of two extruders, normally of two different sizes. The most common ones today are the combination of a 45mm screw diameter together with a 55mm for T-shirt bag production. For garbage bags, normally a 55mm screw diameter with a bigger 65mm is used. In the A-A outer layer, normally 20% of CaCO3 is used, with some additional of color masterbatch, LLDPE and a larger percentage of HDPE. The B layer can be used with larger percentage of CaCO3 with HDPE raw material. In-house recycled pellets can also be used to the mixture. Besides reducing a significant amount of raw material used in the formula, another advantage of the ABA machine is that the 3 layer film that it produces is 30% stronger than film produced by a mono layer extruder. The ABA machine is also much more economic comparing to an ABC three layer machine as it has one extruder less. Polystar, a Taiwanese manufacturer of blown film machines has shifted its main focus onto making and re-engineering ABA technology, because it has noticed this big shift in market trend in many countries where it exports to. Especially in markets where labor cost is higher and more competition exists, producers must find a way to lower their production cost in order to increase profit margin.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.