• Dipti International Limited

DreamAIR Tumbling Technology

Dipit International offers DreamAIR, a new tumbling technology dedicated to the physical and chemical treatment of fabrics in continuous from Pentek. After two years of continuous research and development inside a well-known dye-house in Prato, italy, Pentek has introduced DreamAIR in the final. DreamAIR compensates the lack of specific equipment and it positions as a unique process technology in continuous process. For matching high production requirements and flexibility on the various treatments, Pentek has chosen a module concept.
DreamAIR's main module consists of two treatment channels. Each channel is composed by two-fabric accumulation vats, which are linked together by a shooting tunnel, where the airflows are injected for the transportation of the fabric. The fabric is fed into the machine by a transportation reel, going through a washing and treatment overflow (patented systems), which also determines the inversion movement of the fabrics inside the channel. In order to standardise the time of process, Pentek has patented a synchronisation system, which allows the automatic fabric storage by controlling the fabric inversion time and by over/under feed of the transportation reels.
The fabric will move to the second treatment channel, where it keeps the treatment and eventually going (by overflow transportation) to an additional washing and neutralisation module for intensive cleaning. At the exit, the fabric will accumulate to a j-box for an optional rope opener, for opening up the fabric and plaiter or batch-rolling disposition. The airflows that are generated for fabrics transportation are sucked behind the treatment grids (patented System) and recirculated inside the machine, by going through an air/water separator. This device allows keeping chemical elements in the machine and not being exhausted outside.
Thought as a workhorse for the treatment of fabrics with high residual element (enzymes, waxes, various coating and pigments, etc,), DreamAIR is equipped with fully extractable vats for easy access and cleaning. The water enters from the forth accumulation vats and it is distributed all over the machine by counter current flow. Each treatment vat reticulates the water through a specific pump, passing through a filter before being fed into the washing and treatment overflows. The water quality is controlled by specific software, which regulates the automatic feeding of the chemicals, used for every recipe.
Technologies processes: During the research and development time and the first installation, Pentek had the chance to test the new technology on several fabrics’ types with different treatments:

• Enzyme washing of cotton and blends, before and after dyeing
• Soda and enzyme washing of Tencel and blends
• Soda and enzyme washing of cupro and blends
• Sand wash of silk
• Washing of coated/pigment dyed fabrics
• Washing of waxed fabrics
• Treatment of woollen knits and blends for the desired tumbling effects
• Washing and enzyme treatments of denim fabrics
• Progressive steaming and tumbling of polar fleece
• Various physical and chemical treatments as preparation for dyeing.