calendering


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Related to calendering: calendaring

calendering,

a finishing process by which paper, plastics, rubber, or textiles are pressed into sheets and smoothed, glazed, polished, or given a moiré or embossed surface. The material is passed through a series of rollers; the resulting surface depends on the pressure exerted by the rollers, on their temperature, composition, and surface designs, and on the type of coating or glaze previously applied to the material to be calendered.

Calendering

 

the processing of materials (fabric, paper, orrubber) on a calender. In the production of paper, calenderingis done on machine calenders installed at the end of the dryingsection of a paper machine or on separate supercalenders. Paper processed on a supercalender is called calendered or glossy pa-per; paper that has been passed through a machine calender andhas a lower gloss is called machine-finished paper. The smooth-ness produced by calendering depends on the type of rollers (itis greater with the combined use of cast-iron and paper rollers), their temperature (smoothness increases under heating), the pa-per composition and moisture content (paper with greater kaolin content calenders better), and the pressure between the calenderrollers. In the production of rubber, calendering is used for manufacturing sheet rubber in various thicknesses, for plasticiz-ing and heating rubber stock, and for rubberizing fabric. Intextile manufacturing, calendering is used for packing cotton, linen, and jute fabrics, adding luster to them, and applying em-bossed patterns.

calendering

[′kal·ən·dər·iŋ]
(textiles)
Mechanical finishing process to produce a hard, shiny fabric.
References in periodicals archive ?
Study of three-dimensional effects in the calendering of thermoplastics has been limited.
Different calendering effects with multi-covering technology
This study investigated the influence of different calendering conditions on newsprint surface and absorption characteristics, strength, and compression uniformity.
The Syncast installations in North America are both for 230-inch wide nonwovens calendering lines, each using two Syncast rolls.
We also found that the furnish composition and beating and the calendering affected air permeability in different ways.
Advanced Micro thin coating technology and unique calendering
Anthony Ashton, managing director, RHL says, "The RHL range provides unbeatable options in squeezing and calendering technology for finishers in China and the whole of Asia and we are looking forward to introducing the enormous benefits of these products to them.
The company has introduced a calendering grade of thermoplastic polyurethane (TPU) elastomers to be commercialized under the Pellethane brand.
A method often used for coatings applications, calendering allows resin to be placed directly onto fabrics.
VIB has performed several years of research especially focused on SC A papers--in the Metso Paper Calendering Center in Jarvenpaa, Finland; in the new OptiLoad Twinline Calender of CTC technology center in Raisio, Finland; and at the VIB Trial Center in Maintal--applying a special concept for SC A paper and newly developed, extremely precise VIB nozzles.
It has seven installations, including one on a lab calendering line at DuPont Co.
The multi covering technology allows various calendering effects by a quick and simple sleeve change.