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Decatizing felts and decatizing satin wrappers

For woollen fabrics manufacturing, Dollfus & Muller is supplying decatizing felts with silicone or not, satin fabrics, steamer transport belts, decatizing exit belts and vigoureux printing sleeves.

Decatizing machine     Endless felt     Satin wrapper     Exit belt

 

Continuous decatizing felts

The Dollfus & Muller endless felts are used on these machines. The woven woollen fabrics need to be decatized in order to obtain good dimensional stability and handle. The fabric passes between two felts under hot temperature and steam atmosphere. One of them, the product FINROLL, acts as a conveyor which carries the fabric inside the machine. The second is a heat shrinkable sleeve also called polyester jacket which fits on a perforated steaming drum. Both felts are necessary to improve the handle of the fabric.

The Dollfus & Muller silicone felts are used on high pressure continuous decatizing machines. The woven woollen fabric is carried into the machine and strongly pressed against a hot cylinder. This mechanical action creates saturated steam which is necessary for the finishing of the woollen fabric. The silicone layer acts as an impermeable shield, so that the steam is almost completely applied on the fabric. This kind of finishing gives a high dimensional stability and a very good handle to the processed fabric.

These felts are used on the following decatizing machines : M-TEC (Menschner, Hemmer, Bejitec), Sperotto, Kettling & Braun, Bisio, Biella Shrunk Process, …

Schema continous decatizing machine

 

CONTINUOUS DECATIZING MACHINES
Finishing type Machines Description Quality Characteristics
 Composition  Thickness
(in mm)
Weight
(g/m²)
Airflow
'CFM / Cubic Feet/min,
under 124 Pa
Under pressure
continuous decatizing machines
Supercrab/Multiset 2
Vulcano / Vulcocrab
For wet environment, Silicone coating
and impregnation. Resistant to
high pressures / tensions
FINROLL SI2 Polyester/ Silicone 9 8200 0
Under pressure
continuous decatizing machines
Superfinish / Contipress /
Vapofix
For dry environment, Silicone coating.
Resistant to
high pressures / tensions
FINROLL SI Polyester/ Silicone 8 7900 0
Under pressure
continuous decatizing machines 
Hemmer Conticrab For wet environment,
Silicone coating
and impregnation. 
FINROLL SIH2 Polyester/ Silicone  5 5400 0
Traditional continuous
decatizing machines
Sperotto Multidecat
/ Superfinish
Endless transport felt FINROLL 100% Polyester 4 2200 7
Traditional continuous
decatizing machines
Sperotto Multidecat
/ Biella Thermoduplex /
Superfinish
Heat-shrinkable sleeve 8 mm thickness MTR 8 100% Polyester  8 2800 10
Traditional continuous
decatizing machines
Sperotto Multidecat
/ Biella Thermoduplex /
Superfinish
Heat-shrinkable sleeve 4 mm thickness MTR 4 100% Polyester  4 1300 14
Traditional continuous
decatizing machines
Old machines Steam resistant needled punched
molleton with non marking
chamferred edges
D FIX N 100% Nomex®
(Aramid) fibres
2,5 300 100
Traditional continuous
decatizing machines
Old machines Woven underlayer cloth 39/1 100% Acrylic 0,6 220 45

 

Semi-continuous or discontinuous decatizing machines : satin wrappers for KD machines

The Dollfus & Muller satin wrappers are used on the KD machines during wool processing. The woollen fabric is wrapped with the satin fabric around a steam heated drum in lengths from 200 up to 1000 m. In most cases this roll goes into an autoclave, also called KD, for around a 15-20 minutes cycle, and is unwrapped afterwards. The combination of the high pressure steam atmosphere and this decatizing satin gives a good handle to the fabric.

Dollfus & Muller is manufacturing as well the exit belts for the KD decatizers.

These wrappers and exit belts are used on the following machines : KD Biella Shrunk Process, TMT, Gessner, Moers, Singer, …

 

DISCONTINUOUS DECATIZING MACHINES
Description Quality Characteristics
 Composition
(Wa : Warp / We : Weft)
Number of picks/cm Width
(in cm)
Weight
(g/m²)
Airflow
(CFM : Cubic Feet/min, under 124 Pa)
High quality of satin wrapper DN 3000 Wa : Polyester / Cotton (65%/35%)
We : Cotton / Polyamide (75%/25%)
132 +/- 2 177 420 6
Standard quality of satin wrapper DN 2500 Wa : Polyester / Cotton (60%/40%)
We : Polyester / Cotton (55%/45%)
139 +/- 2 177 415 6
High quality molleton K5 Wa : Cotton / Polyamide (75%/25%)
We : Cotton (100%)
34 +/- 2 176 550 11
Steam resistant needle punched
molleton underlayer
HZ 40 100% Nomex®  (Aramid) fibres - 180 390 62

 

Belts for Steaming machines / Spongers Dryers

The Dollfus & Muller conveyor belts are used in order to convey the woollen fabrics inside these machines. This steamer improves handle and creates shrinkage to the woollen fabrics using steam. The steamer belts can also be used at the exit of the discontinuous and continuous decatizing machines as a decatizor exit belt, in order to assist the fabric to exit the machine and to be cooled.

These conveyor belts are used on the following machines : Sperotto, KD Biella Shrunk Process, Stalam, Krantz,…

 

CONVEYOR BELTS
Machine types Belt types Description Recommended belts Characteristics
 Insight Quality composition Maximum
Working T°
Airflow
(CFM : under 124 Pa)
Steam
Resistance
Steaming machines RIGID Smooth surface TAMIP GT 40 TAMIP GT 40 Fibreglass coated
with PTFE 
260°C
500°F
1900 -
Steaming machines FLEXIBLE Ideal belt for transportation TAMIP C 928  TAMIP C 928 100% Polyester 150°C
300°F
1400  ++ 
Steaming machines FLEXIBLE Smooth surface and limited
dimensional stability
TAMIP C 900  TAMIP C 900 100% Polyester 150°C
300°F
1570  ++ 
Steaming machines FLEXIBLE  Reinforced spiraled belt.
Very high stability
TAMIP Multiclip 80  TAMIP
Multiclip 80
100% Polyester  150°C
300°F
1100  ++ 
Decatizing machine
exit belt
FLEXIBLE High grip surface recommended
for inclined exit
TAMIP C 928  TAMIP C 928 100% Polyester 150°C
300°F
1400  ++ 

 - None    ++ Strong

 

Felt sleeves for Vigoureux printing machines

Dollfus & Muller woollen sleeves are used in these machines. This process allows the dyeing of the woollen yarns.

 

SLEEVE FOR VIGOUREUX PRINTING
Description Quality Characteristics
 Composition Maximum working T° Thickness (in mm) Weight (g/m²)
Felted woven sleeve Q1G1 100% wool 130°C / 270° F 6 2500

 

Dollfus-Muller-for-Woollen-fabrics-finishing.pdf