Compacting felts
Compactors and calenders
The Dollfus & Muller Nomex® felts (aramid felts) are used on Textile compactors or calendering machines in Dyeing houses.
Knitted fabrics need to be pre-shrunk and stabilized in order to avoid the subsequent shrinkage of the T-shirts or polos in washing machines.
The compacting felts facilitate this effect (this is why they can be called shrinking felts) and improve the fabric handle. The shrinkage required (between 2 and 10%) is mechanically given on both sides of the fabric by two consecutive endless felts using temperature (usually between 110 & 160°C / 280 & 320°F) and steam pressure.
For heat-setting processes, carried out between 180-200°C (350-400°F), Dollfus & Muller has developed heat resistant endless felts made with Nomex® (aramid) fibres.
In some countries, the compacting felts are as well called Sanfor felts.
The Dollfus & Muller felts with their optimal compacting rate give the highest dimensional stability and excellent fabric handle.
The compacting felts used in the processing section of the knit manufacturers are used on the following machines : Ferraro, Santex, Sperotto, Lafer, Albrecht, Serteks, Heliot, Ruckh, Monforts, Brückner, Hsing Cheng, Jiangyin Jintian, Dilmenler, Weiss, Hung Jyi, Lafer Türk, Mersan, Bianco, Dong Nam, BH Tech, Fong’s, Poong Kwang, Muzzi, Ssang Ho, Monti, I Kuang,…
| Machine types | Felt types | Machine heating device | Thickness (in mm) | Machines | Fibres composition | Quality | Characteristics | |
|---|---|---|---|---|---|---|---|---|
| Maximum working T° | Weight (g/m²) |
|||||||
| Compacting machines: |
Endless felts | Steam heated | 21 | Ferraro / Lafer / Santex Albrecht / Heliot / Sperotto Hung Jyi / Muzzi / Serteks Mersan / Poong Kwang Ssang Ho / Weiss / Ruckh Brückner / Jiangyin Jintian Fongs |
100% Nomex® contact surface Content of Nomex® on the full felt thickness : 30% |
FZAV 808 | 160°C 320°F |
8200 |
| Compacting machines: |
Endless felts | Steam heated | 21 | Ferraro / Lafer / Santex Albrecht / Heliot / Sperotto Hung Jyi / Muzzi / Serteks Mersan / Poong Kwang Ssang Ho / Weiss / Ruckh Brückner / Jiangyin Jintian Fongs |
100% Nomex® contact surface Content of Nomex® on the full felt thickness : 50% |
FZV 850 | 160°C 320°F |
8200 |
| Compacting machines: |
Endless felts | Steam heated | 18 | Santex / Sperotto Ferraro / Albrecht |
100% Nomex® contact surface Content of Nomex® on the full felt thickness : 30% |
FZAV 708 | 160°C 320°F |
7000 |
| Compacting machines: |
Endless felts | Steam heated | 16 | Santex / Monforts | Wool - Polyamide - Polyester | FLPV 640 | 160°C 320°F |
7000 |
| Compacting machines: |
Endless felts | Steam heated | 16 | Monti | 100% Nomex® contact surface Content of Nomex® on the full felt thickness : 50% |
FZV 650 | 160°C 320°F |
6400 |
| Compacting machines: |
Endless felts | Steam heated | 14 | Ferraro | 100% Nomex® contact surface Content of Nomex® on the full felt thickness : 30% |
FZAV 508 | 160°C 320°F |
5400 |
| Compacting machines: |
Endless felts | Steam heated | 13 | Santex | Wool - Polyamide - Polyester | FLPV 540 | 160°C 320°F |
6400 |
| Compacting machines: |
Endless felts | Thermo-oil heated |
21 | Ferraro / Lafer / Monti | 100% Nomex® contact surface Content of Nomex® on the full felt thickness : 100% |
FZ 800 | 230°C 450°F |
8200 |
| Compacting machines: |
Endless felts | Thermo-oil heated |
16 | Monti | 100% Nomex® contact surface Content of Nomex® on the full felt thickness : 100% |
FZ 600 | 230°C 450°F |
6400 |
| Compacting machines: |
Heat shrinkable sleeves |
Steam heated | 8 | Ruckh | 100% Wool | Q 1011 | 150°C 300°F |
3400 |
| Compacting machines: |
Heat shrinkable sleeves |
Steam heated | 6 | Lafer Open Width | 100% Polyester | MTR 6 | 160°C 320°F |
2000 |
| Calenders | Heat shrinkable sleeves |
Steam heated | 8 | Weiss / Bitexma / Albrecht | 100% Wool | Q 1011 | 150°C 300°F |
3400 |
| Calenders | Endless felts | Steam heated | 10 | Ferraro / I Kuang / Albrecht Monti / Dong Nam |
100% Polyester | FV 380 | 160°C 320°F |
3800 |
| Calenders | Endless felts | Steam heated | 8 | Ferraro / I Kuang / Albrecht Monti / Dong Nam |
100% Polyester | FV 300 | 160°C 320°F |
3000 |
| Calenders | Endless felts | Steam heated | 6 | Ferraro / I Kuang / Albrecht Monti / Dong Nam |
100% Polyester | FV 230 | 160°C 320°F |
2300 |
| Calenders | Endless felts | Thermo-oil heated |
10 | Ferraro / I Kuang / Albrecht Monti / Dong Nam |
100% Nomex® contact surface Content of Nomex® on the full felt thickness : 100% |
FZ 380 | 230°C 450°F |
3800 |
| Calenders | Endless felts | Thermo-oil heated |
8 | Ferraro / I Kuang / Albrecht Monti / Dong Nam |
100% Nomex® contact surface Content of Nomex® on the full felt thickness : 100% |
FZ 300 | 230°C 450°F |
3000 |
| Calenders | Endless felts | Thermo-oil heated |
6 | Ferraro / I Kuang / Albrecht Monti / Dong Nam |
100% Nomex® contact surface Content of Nomex® on the full felt thickness : 100% |
FZ 230 | 230°C 450°F |
2300 |
Nomex®, Teflon® and Kevlar® are DuPont de Nemours registered trademarks
Dollfus & Muller for Knitted fabrics finishing D 31.pdf
