Drying Cylinder Sizing Machine
is an integral component of textile machinery. Featuring many technological functions and features, its use has become ubiquitous over time. Jupiter Comtex was established as a professional manufacturer fifty years ago to deliver this equipment with excellence.
This machine is used to size warp yarns prior to being wound onto weaving beams, using different drying cylinder structures with staggered up-and-down layout to increase sheet yarn contact area and achieve greater efficiency at lower steam consumption.
This sizing machine utilizes a stainless steel cooking vessel with high pressure capacity for cooking the ingredients required for sizing. A temperature meter and pressure gauge are installed within it in order to monitor reed temperature and cooking pressure respectively, as well as an integrated stirrer to mix ingredients while steam supply serves to regulate cooking liquor temperature.
This sizing machine's dry zone consists of one or multiple-cylinder drying zones designed to regulate the length of time that warp sheets remain within these drying zones and prevent overdrying.
This sizing machine can be equipped with direct gas heating of its cylinders for energy savings, saving a considerable amount of energy compared to traditional pre-drying methods such as infra red gas or hot air drying. This feature helps maximize productivity while simultaneously increasing efficiency during sizing processes.
Steam valves are used to regulate the flow of liquids, gases and other media throughout a facility. Made of heat-resistant materials for long-term reliability and long service life. Regular inspection, testing and calibration help keep these critical components functioning effectively while avoiding costly malfunctions.
A cylinder sizing machine features individual steam valves for each cylinder, which adjust the steam pressure inside each one and measure temperature accordingly. An appropriate temperature ensures optimal warp quality - including minimum end breakage percentage, accurate stretch, and proper size pick-up.
Installing these valves correctly means following the manufacturer's guidelines and engaging a qualified professional to perform installation work and check all valves for alignment and proper direction of steam flow before fastening them to their respective pipelines, so as to prevent leakage. Furthermore, document all installations dates and maintenance cycles to ensure optimal valve performance over time.
Sizing liquor contains many adhesive agents that penetrate deep within the warp sheet to increase yarn strength, binding with protruding fibers to decrease hairiness of yarn, as well as creating a thin protective film on its surface that improves abrasion resistance and smoothness of woven fabrics.
Preparation of the sizing liquor requires great care to achieve optimal process performance. Sizing ingredients are added with precision using long graduated metallic scales; final recipes for warp yarn quality parameters like tensile strength, elongation at break and R.K.M are selected based on this information.
Untreated starch powder (Maize, Sago, Wheat or Potato) can be used as an adhesive agent when sizing yarn. When compared with thick boiling starch it has lower viscosity and penetrates more readily into yarn fibres compared to thick boiling starch - providing an economical way of sizing. But it must first be diluted prior to being applied onto a sizing beam as prolonged storage can result in bacteria or mildew contamination of this sized beam.
The warp sheet then enters a drying zone consisting of twin or multi cylinders heated by steam; its stay time in this section of the machine is monitored to prevent over-drying.
Based on the size and quality of material being processed, single and double immersion rolls, as well as squeezing rollers may be utilized. This stage is of critical importance as over-drying can cause excessive end breakage while weaving.
Automatic control of the main steam valve allows moisture percentage in sized warp sheets to be set by controlling their moisture percentage, with antiseptic agents added to the sizing liquor to avoid bacteria or mildew formation in fabric made from them. This system saves money while increasing fabric quality; operating costs decrease while fabric quality rises significantly compared with traditional methods; in fact it is highly efficient as its advantages outweigh them: being easier and cheaper in energy consumption consumption as well as more convenient for storage purposes as longer periods can pass between uses!