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A calender is a series of hard pressure rollers used to finish or smooth a sheet of material such as paper, textiles, rubber, or plastics. Calender rolls are also used to form some types of plastic films and to apply coatings. [1] Some calender rolls are heated or cooled as needed. [2] Calenders are sometimes misspelled calendars.
Calendering of textiles is a finishing process used to smooth, coat, or thin a material. With textiles, fabric is passed between calender rollers at high temperatures and pressures.
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The 5 Best Foam Rollers In 2024 Hearst Owned "Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If I could do only one post-workout recovery activity ...
Foam roller Exercises. A foam roller is a lightweight, cylindrical tube of elastomeric foam used for massaging one's own muscles. [1] The roller is placed between the target muscle and the ground, and is rolled back and forth, using body weight for pressure.
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A hot roller or hot curler is designed to be heated in an electric chamber before one rolls it into the hair. [2] Alternatively, a hair dryer heats the hair after the rolls are in place. Hair spray can temporarily fix curled hair in place. In 1930, Solomon Harper created the first electrically heated hair rollers, then creating a better design ...
These pumps employ rollers to squeeze the tube. Except for a 360° eccentric pump design, these pumps have a minimum of 2 rollers 180° apart and may have as many as 8, or even 12 rollers. Increasing the number of rollers increases the pressure pulse frequency of the pumped fluid at the outlet, thereby decreasing the amplitude of pulsing.