Textiles: fluid treating apparatus – Machines – Combined
Reexamination Certificate
1999-03-04
2001-11-13
Stinson, Frankie L. (Department: 1746)
Textiles: fluid treating apparatus
Machines
Combined
C068S207000, C068S20500R, C366S160100
Reexamination Certificate
active
06314770
ABSTRACT:
FIELD OF THE INVENTION
The present invention refers to a plant and a method for supplying machines with dyes for the continuous dyeing of textile materials.
BACKGROUND OF THE INVENTION
It is well known to those skilled in the art that the continuous dyeing of textile materials such as carpets, fabrics and unwoven materials, is operated by deeping these materials in a selected dyeing bath and ensuring a continuous and constant level of the bath within the same dyeing machine which includes the means for feeding the material under treatment while the bath is supplied with dye. The dyeing bath consists of a solution comprising a set of components such as chemicals, auxiliary and dyeing products, as well as water, in proportions corresponding to the formulations or recipes which are each time chosen, the same bath being prepared in suitable containers outside the machine which is continuously supplyed therewith.
The solutions to be fed to the dyeing machine are prepared mostly manually, which is possibly a cause for some inaccuracy in the metering of components. This may heavily reduce the possibility of having baths comprising solutions with steady and periodically restored characteristics, contrary to what is normally required for carrying out this type of treatment.
An automated plant for the preparation of solutions intended for dyeing machines is disclosed in the European Patent No. 203182. This plant is so constructed as to allow the flow of dyeing solutions from a plurality of stocking tanks, to be diverted among a plurality of different outlets. Besides, associated to each of said tanks is a close loop line for continuously recirculating the relevant solutions. However, dispite the structural and operational complexity of this known plant, it is not entirely excluded that the solutions circulating within the relevant conduits may become contaminated, before being fed to the machine using them, as they enter in contact with solutions of different titre circulating within the same conduits.
SUMMARY AND OBJECTS OF THE INVENTION
The main object of the present invention is to provide a plant allowing the fully automatic preparation and feeding of baths to dyeing machines with no possibility for the solutions to be contaminated before being delivered to the machine using them.
This result has been achieved, according to the invention, by providing an apparatus or plant having a plurality of dye tanks. A metering/dissolving device is connected to the plurality of dye tanks for preparing different dye solutions in each of the plurality of dye tanks. The dye solutions are prepared from dye products in the form of powders and/or granules. A plurality of primary auxiliary tanks are provided for holding chemical and auxiliary solutions that may be desired in the preparation of the dye solutions. An auxiliary manifold selectively receives the chemical and auxiliary solutions from the primary auxiliary tanks and then feeds the combination of chemical and auxiliary solutions to auxiliary tanks which include motor driven stirrers. The auxiliary manifold has a connection for receiving washing liquid to clean the auxiliary manifold once the proper amounts of chemical and auxiliary solutions have been selected and transferred to the auxiliary tanks. The washing liquid used is one of the ingredients of the dye solution and the washing liquid used to clean the auxiliary manifold is also fed to the auxiliary tanks.
A plurality of pumps are connected to each of the dye and auxiliary tanks for removing a respective solution from a respective tank. A main manifold is connected to a plurality of pumps and receives a solution from the plurality of pumps. A mixer arranged in the manifold mixes the solutions in the manifold and from there the mixed solution is fed to a dye machine which consumes the dye. A programable control unit is connected to the pumps and the metering/dissolving device in order to selectively, continuously, and automatically prepare and supply dye to the machine consuming the dye.
The present invention makes it possible to always ensuring, in a fully automatic way, the most accurate dyeing of textile materials under work, without any contamination of the solutions circulating within the conduits upstream of means provided for ultimately mixing the same solutions. Moreover, as the final mixing of the solutions to be fed to the dyeing machine is operated just upstream of the latter, it is possible to supply the same machine with different solutions which exhibit long lasting characteristics of immiscibility and which, accordingly, cannot be stored being mixed beforehand. It is also possible to achieve a significant reduction of electric power, thanks to the fact that the water used for washing the conduits and the means for dissolving the powdered and/or granulated dyes may be used also for achieving the final titre of the solutions preparared in the respective tanks. The plant according to the invention is of relatively simple construction and is able to accomodate a high number of tanks for dye solutions, chemicals and auxiliary products at different strengths thereby widening its production capacity.
These and other advantages and characteristics of the invention will be best understood by anyone skilled in the art from a reading of the following description in conjunction with the attached drawings given as a practical exemplification of the invention, but not to be considered in a limitative sense, with
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Anguillesi Mauro
Bartalucci Moreno
Scatizzi Mario
McGlew and Tuttle , P.C.
Stinson Frankie L.
Tecnorama S.r.l.
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