Conticrabbing Model 2C/P-M/F91:

It is known that steam and hot water effect wool in two ways, Phisically and
Chemically.

- PHYSICAL EFFECTS

Alteration in the morphological structure of the cortical cells, lengthening
them, which causes them to overlap.

- CHEMICAL EFFECTS



Allows Cystine Hydrolysis (having its own two sulphur atoms in the main
component of the elasticity) which results in a compound with only one sulphur
atom with the release of hydrogen sulphide giving off its typical smell from the
fabric. Through this process, the main natural component of the wool, Alpha
Keratin changes in structure to form the much less elastic Beta Keratin.

This Chemical/Physical transformation process is obtained by subjecting the
wool to water heated to over 100°C for a certain period followed by a Thermic
Shock treatment which stabilises the newly formed Beta Keratin to produce a more
stable fabric.

The results of the Thermic Shock are twofold; first it prevents the reversal
of the chemical reaction, secondly it fixes the new physical structure of the
cortical cells which have swelled up and lengthened as a result of the pressure
at high temperatures causing overlap and thus three layers. This prevents the
wool returning to its physical state of Alpha Keratin, reducing the elasticity
and resulting with a fabric that is permanently stable. Each type of fibre will
react differently to this treatment and therefore, the length of time and
temperature of the hot water will vary accordingly.



TECHNICAL DATA

- Width 3200 mm

- Length 9000 mm

- Height 4795 mm

- Production speed: 15/25 metres per minute

- Pre-washing tank capacity: 900 litres

- Boiling vat capacity: 5500 litres

- Thermal shock vat capacity: 500 litres

- Total installed power: 37 kW

- Total net weight: 35000 Kg



ADVANTAGES

- Unlike all other existing systems this machine does not require rubber belts
or underclothes which are all very expensive to replace

- Setting is obtained without chemical additives which are expensive and can
cause problems for later processes, however, the full potential of the wool is
reached

- Permanent setting with great advantages during dyeing and finishing operations
(time reduction during KD - when it is necessary to obtain a nervous handle)

- A much better handle is also obtained

- There is a marked improvement if colour tone, increased brightness, after
dyeing

- Creases and shrinkages during the thermo adhesion are eliminated

- The machine requires very little maintenance