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INDIGONEWSby MASTER

INDIGO DYEING MACHINESDEVELOPMENT(what it takes to make the difference)

The leaflet here attached that celebrates our fiftieth working year, more than thedutiful thanks to you, to our technicians and cooperators, expresses the achievementof this precious goal that we have been able to reach thanks to a philosophy that wecan say is the base of our success.

The construction, in 1972, of the first slasher continuous indigo dyeing machine, fordenim warp chains, up to then rope dyed has revealed not only the future potentialityof this new system, but also the necessity to study in detail all its special technology.

So being already established manufacturers of machines and plants for yarn dyeingon cones, beams and so on, we decided to develop also this new production and tocontinue to dedicate ourselves to the specific field of yarn dyeing only, placingourselves the aim to reach, also for this new indigo dyeing machine, the excellencethat had always marked our production.

In order to reach this goal and since we are firmly convinced about the importancethat theoretical and applied research represent the milestone for an always moreadvanced and efficient technology which is respectful of the environment, we are thesole manufacturer of these machine in the world to have adopted a Research &

Development department equipped with creel, fractional warping, and a lab dyeingmachine able to reproduce in small scale the industrial ones and moreover we doalso have a well equipped chemical lab.

This equipment made it possible for our technicians and qualified cooperators toperform researches, trials and tests for new concepts and allowed them to have analways deeper knowledge of the dyeing processes, through the influence of theirvarious parameters, for the continuous updating of our machines.

All this being said in addition to the active cooperation with our customers, among themost valued denim manufacturers in the world, allowed us to essentially differentiateour machines from those of our competitors, that are excellent manufacturers ofstandard machines, such as warping, sizing and so on, but are in no way specializedin the machines for indigo dyeing, core of the denim productive process.

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INDIGOGENIUS/4M/S TRC CANDIANI SpA (ITALY)

is an integrated dyeing module made up of a combination of a dyeing vat witha special group for dyestuff diffusion/fixation at soluble condition (leuco) in the yarnadjustable through heat activation and timing variation in inert environment.

Thanks to the (pat.) the indigo and sulphur dyestuffs continuous dyeingtechnology takes a new form: advanced technology as a means, ecology andeconomical as a result, and that is Green Dyeing for denim of the future.

In the (pat.) modules the indigo chemical reduction is really total and perfect:the dyeing ability of leuco makes us think of a particles disintegration at nanometriclevel, which puts the dyeing bath in condition to penetrate and fix itself onto the fibrein a superior way if compared to the traditional system, in some cases this also

allows to eliminate the fixing agent even dyeing with a higher concentration ofdyestuff in the bath.

Moreover during the dyeing process of sulphur dyestuffs, and of the sulphur black inparticular, we can see a higher colour output which can be visually evaluated ataround 40% with a higher fixing grade and even with more brightness if compared tothe dyeing process performed by traditional machines.

In practice, if compared to the classical indigo dyeing method, common to alltraditional machines and which foresees three operating steps repeated severaltimes consisting in: yarn soaking with dyestuff, squeezing to eliminate the bathexcess contained into the yarn itself and leuco oxidation by yarn staying at air,

added a fourth intermediate operating step and that is the hot leucodiffusion/fixation for a long timing in inert environment, in this environment yarnimmersion and yarn squeezing take place as well.

The (pat.) and the (pat.) allowing in addition tothe traditional dyeing processes other special dyeing processes, obtainables in anexclusive way thanks to the possibility to combine in different ways thephysical/chemical characteristics of the dyeing bath with the mechanical/technicalvariables the machines are equipped; these lead in significant interaction which

results are the achievement of dyeing with particular effects to manufacture newproducts that are original and unrepeatable with traditional machines.

INDIGOGENIUS/2M/S COVOLAN IND. TEXTIL (BRASIL)

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The technical, ecological and economical advantages are:

Dyeing process independent from external variables;

Better indigo and sulphur dyestuffs diffusion and fixation to the fiber;

Higher dyeing yield (about 40% with sulphur dyestuffs); use of about the half of dyeing vats number Reduction (until -80% approx.) of caustic soda and hydrosulphite consumption

Reduction of energy consumption

Reduction of washing water consumption

No nitrogen consumption when the machine is running (C type) Drastic reduction of sulphite and sulphate in the effluent waters

less yarn wastages at lot change (A/B types)

Operative flexibility increase due to the possibility to operate with highconcentrated indigo and at high temperature too.

(pat.) and (pat.) then are not only the rightanswer to an always changing fashion, but also to the always greater attention andsensitivity given in the whole world to ecological and environmental problems, andthat is to say towards the green products.

Denim has become an absolute cult without limits of use and time, since a long timeit has broken ranks of basic, even if it was high quality, for join those intended fordiversification of items and of comfort.But it is implied that this innovative spirit, which is always under pressure so tointroduce the customer to always more attractive and exclusive solutions, shall besupported by a continuous technological evolution of the chemical andmechanical/textile fields. These fields need to be flexible and versatile in order to putin practice these new ideas and so to satisfy an always more demanding market.

Surely never before as this time the denim, even interpreted in a subjective way aslong as you want, has become the icon of a new age and of a new dress up culture.We shall never forget that beyond these variations on the theme of classical denim,lies a working reality based on great competence, on careful planning quality and ondifferent skills that must be added to complement each other, as well as on afarsighted entrepreneurship aimed at renewal and continuous adjustment of themachine.

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MASTER S.r.l. - Via Enrico Fermi 10 - 20846 Macherio (Italy)

Tel. (++39) 039.20.13.066 - web: www.mastermacherio.itFax (++39) 039.20.12.274 - e-mail: info@mastermacherio.it