Chapter General Finishing Lecturer: Prof Dr Yan kelu
Chapter 8 General Finishing Lecturer: Prof. Dr. Yan kelu
Chapter 8 General Finishing 8.1 Introduction
Chapter 8 General Finishing 8.1 Introduction
8.2 Mechanical Finishing 8.2.1 Stentering Hot air stenter(hot air jig tenter)(pin clip)
8.2 Mechanical Finishing • 8.2.1 Stentering • Hot air stenter (hot air jig tenter) (pin clip)
8.2.2 Calendering Calendering is a purely mechanical process although chemicals may be used to enhance and make durable the results obtained by calendering Calenders consist of a series of from three to eleven heavy rollers turning against each other Alternate rolls are made of polished chilled steel brass, cast iron, etc and may be solid or with a hollow core and may be covered with cotton, pith paper, linen or husk
8.2.2 Calendering Calendering is a purely mechanical process although chemicals may be used to enhance and make durable the results obtained by calendering. Calenders consist of a series of from three to eleven heavy rollers turning against each other. Alternate rolls are made of polished chilled steel, brass, cast iron, etc. and may be solid or with a hollow core and may be covered with cotton, pith, paper, linen or husk
8.2.2.1 Rolling calender or SWIshing On a simple rolling calender the fabric passes around the bottom roll and through the nip around the next roll and so on to the last nip This treatment serves to give a final smoothness to the cloth and make it less porous and open
8.2.2.1 Rolling calender or swissing On a simple rolling calender the fabric passes around the bottom roll and through the nip, around the next roll and so on to the last nip. This treatment serves to give a final smoothness to the cloth and make it less porous and open