DESCRIPTION

Series of hard pressure rollers used to form or smooth a sheet of material such as paper or plastic film. 

In a principal paper application, the calender is located at the end of a papermaking process (on-line). 

Those that are used separate from the process (off-line) are also called supercalenders. 

The purpose of a calender is to make the paper smooth and glossy for printing and writing.

The calender section of a paper machine consist of a calender and other equipment. The paper web is run between in order to further smooth it out, which also gives it a more uniform thickness. The pressure applied to the web by the rollers determines the finish of the paper, and there are three types of finish that the paper can have. The first is machine finish, and can range from a rough antique look to a smooth high quality finish. The second is called a supercalendered finish and is a higher degree for fine-screened halftone printing.

The third type of finish is called a plater finish, and whereas the first two types of finish are accomplished by the calender stack itself, a plater finish is obtained by placing cut sheets of paper between zinc or copper plates that are stacked together, then put under pressure and heating. A special finish such as a linen finish would be achieved by placing a piece of linen between the plate and the sheet of paper, or else an embossed steel roll might be used.

After calendering, the web has a moisture content of about 6% (depending on the furnish). It is wound onto a roll called atambour, and stored for final cutting and shipping.

APPLICATION

 This product is used in electrostatic copy paper, offset paper, newsprint, dictionary paper, fine paper.

                                                                        SPECIFICATION

Here are the details of our products. If any of them be of your interests, please do not hesitate to contact us.

MANUFACTURE