Textile belts and felts

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 machines

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 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 tranport 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 : 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

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	Fibreglass coated with PTFE	260°C 500°F	1900	-
Steaming machines	FLEXIBLE	Ideal belt for transportation		TAMIP C 928	100% Polyester	150°C 300°F	1400	++
Steaming machines	FLEXIBLE	Smooth surface and limited dimensional stability		TAMIP C 900	100% Polyester	150°C 300°F	1570	++
Steaming machines	FLEXIBLE	Reinforced spiraled belt. Very high stability		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	100% Polyester	150°C 300°F	1400	++

- None ++ Strong

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