Ramallumin is demonstrating its expertise in the design and manufacture of tailor-made machinery for warp preparation.
Most geotextiles are based on coated glass, carbon fibres, polyester, polyamide, polyethylene, and polypropylene. This market is growing strongly and every year new fields of application are opened such as vehicles, aircraft, buildings, agriculture, sports, and advertisements.
The machinery of Italian manufacturer Ramallumin has been designed to provide fabric coatings produced inline by a weaving loom (but can also work offline). With this system the fabric structure remains in perfect condition, the handling is simplified, and the production time is reduced, according to the company. Therefore, the advantages are:
- High productivity
- High quality of fabrics
- Flexible applications
- Low investment
According to Ramallumin, the fabric produced by the loom is dipped into a proper chemical bath, is squeezed by a couple of cylinders, and finally dried with infrared radiant panels which are electrically heated.
The section for impregnation is located in the lower part of the group and includes a strong steel frame. The fabric produced by the loom is dipped into the pan of chemicals by means of an n 1 guide roll and an n 1 dipping roll.
Squeezing cylinders are located at the outlet of the coating box. Working pressure between cylinders can be adjusted by two pneumatic pistons up to a maximum squeezing pressure of 500 kg, according to Ramallumin.
Continuing, the company explains that the drying section is mounted on the upper part of the frame and consists of one duly insulated chamber. Located at each side of the fabric are electrically heated coils which are the radiant source for IR weaves. Fumes arising from evaporation are evacuated through a hood located in the upper part of the chamber.
Ramallumin’s inline coating system can be combined with weaving or warp knitting machines from various manufacturers, the company adds.
