Sackcloth fabrics
Do tkanin produkowanych przez firmę Trans-Tex, a używanych wyłącznie w różnego rodzaju gałęziach przemysłu, należą tkaniny workowe lub inaczej zwane workami filtracyjnymi. Są to materiały w kształcie tuneli o różnej średnicy i długości, które służą przede wszystkim do odprowadzania zanieczyszczeń powstających podczas procesów produkcyjnych.
Filter bags, or tunnels, are mostly used in various machines serving as “vacuum cleaners” that remove dusts, chippings, filings and even toxic vapours from the work or process environment. Fibres used in the production of sackcloth fabrics depend on the type of contaminations stopped by a given sackcloth.
Sackcloth fabrics – types and applications
Filter tunnel fabrics can be divided into three types:
- fabrics filtering liquids and fluids – here the weight and composition of specific sackcloth are selected to the needs of particular customers, due to the unique nature of each tunnel. The best materials here are polypropylene, polyester or viscose fabrics. They have to feature first and foremost high resistance to abrasion and to high temperatures if the temperature of the process liquid should require it. The major function of such tunnels is filtering specific liquids off of larger contaminant solids;
- fabrics for dry filtration – acting as “vacuum cleaners” that remove fine process waste, mostly wood chippings and metal filings. Such tunnels are manufactured from polypropylene, polyester, polyamide or cotton fabrics. The main features that fine particle filtering fabrics have to demonstrate are antistatic properties, high resistance to abrasion and high temperatures. They should also ensure smooth enough flow of the liquid. Such tunnel filters are mostly used in woodworking shops to remove wood chips, metal working shops, e.g. with CNC machines, where failure to filter off small filings may have an adverse effect on the production process.
- filtering off noxious vapours and dusts – in this application polyester, polypropylene, polyacrylic and cotton fabrics work best. They must feature high resistance to chemicals, temperatures and fire, and in particular they must be gas-tight so that filtered gases are not released to the workplace atmosphere. They are used wherever production processes involve high emissions of dust or toxic vapours, e.g. in paint shops, chemical plants or flour mills.
Using filter tunnels of fabrics is much more economic than using filters made from other materials; in addition, when in rest they do not take up much space.