Calender roll for supercalender
US4324177A · kind A · utility
30Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1980 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Apr 7, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C43/021
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a supercalender consisting of a metal roll and an elastic roll and smoothing a web by nipping the web between the metal roll and the elastic roll, the elastic roll satisfies the condition of: EQU Hs(D).gtoreq.-0.1T+85 under the condition of 50 to 500 kg/cm of the linear pressure between the metal roll and the elastic roll, where Hs(D) is Shore hardness D-scale of the elastic roll and T is the working temperature (.degree.C.) of the elastic roller that satisfies the condition of 60.gtoreq.T.gtoreq.120.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.