“We Made the Blanket Calender Machine Applicable to Knitted Fabrics”
Polteks, founded in 1994 is manufacturing rollers for many industries while also manufacturing roller-based machinery. Our company is currently operating with approximately 130 personnel at 10.000 m2 closed area meanwhile manufacturing continues in our locations at Romania and Uzbekistan.
Polteks continues to produce machines for the dye-finishing industry with its R&D projects. Polteks, which is among the leading companies of the sector with the machines it has developed in Turkey and in the world, for the first time in the Turkish market; calender with S-Roll calender machine, to manufacture a calender machine with 6500 mm roller width, to manufacture a coating line calender machine, to manufacture a calender machine with engraved roller for nonwoven fabrics, to manufacture a double calender machine, to manufacture a calender machine with internal piston Polteks also produced the world’s first calender machine with an internal pistons that can apply force to two sides at the same time, and the first calender with rubber blanket.
Before, calender machinery was mostly used for home textile fabrics but today, with the hand feel concept gaining importance in textile industry, it is used for many types of fabric. Calender machinery is the most important machinery because it can give different and unique hand feel, also it can eliminate the need of chemicals. Adjustable temperature, speed and force parameters, different kind of rollers and different passage types allows to get different hand feel from a calender machinery. Rollers like polyamide, cotton and paper are used in calender machinery. From 2 rollers to 7 rollers, different combination of roller types can be used to manufacture a calender machine. Today, machinery with 2 or 3 rollers are more commonly used.
We interviewed with Ali Karen, Polteks’ Chairman of the Directors, for our Turkish Textile Machinery Sector Special Issue. Stating that they added this feature to the machines that cannot be calendered, as a result of the studies in the R&D centers, Karen explained as follows: “As Polteks, we added Rubber Blanket system to calender machinery as a result of R&D. As a result, fabrics that couldn’t be calendered or didn’t give desired results before could be calendered. Furthermore, we ensured to achieve different kinds of hand feel with many types of fabric. We designed the system first for woven fabric, then for knitted fabric.
We make the blanket calender machine applicable to knitted fabrics as well”
We first made the calender machinery with rubber blanket for woven fabrics to achieve different hand feels, after that we made it applicable for knitted fabrics too. We add pin chain stenter and calender unit to the front, sanforizing unit with rubber to the exit to create calender machine with sanforizing unit This way, we achieve different hand feels and the desired fabric unshrinkability. In the machine’s entry, just like in sanforizing and compactor machines, there is a pin chain stenter to do preliminary work to adjust fabric width and weight in grams settings and steam the fabric. After the pin chain stenter, there is a calender with 2 rollers, one of the rollers with chrome coating, other one with heat resistant composite rubber coating to give the fabric shine and to crush it. There is a rubber blanket unit after the calender unit. The rubber used in this unit is able to work in high temperatures works on top of the chrome coated roller. Unit adjusts the fabric that is shined and crushed in calender units hand feel. It effects the unshrinkability to a certain degree. After the rubber blanket unit, there is the sanforizing unit. This unit mainly gives the fabric unshrinkability also helps adjusting the hand feel a fair amount. And lastly, with folder and batch rollers, fabrics can be folded or rolled up to the trolley.
By adding its own calender and rubber blanket system to the sanforizing process of existing knitted fabrics, Karen; He said that their main purpose is to offer new options to knitted fabric manufacturers who are currently in search of different touch, to reduce the amount of chemicals used to obtain touch, to reduce the water consumption used for cooling and prolonging the life of rubbers in sanforizing machines, and that their projects continue.
