Textiles: fluid treating apparatus – Machines – Liquid flowing
Reexamination Certificate
1996-04-04
2001-05-22
Stinson, Frankie L. (Department: 1746)
Textiles: fluid treating apparatus
Machines
Liquid flowing
C068S184000, C068S18100D, C068S207000
Reexamination Certificate
active
06233982
ABSTRACT:
The present invention concerns a method for the treatment of ready-to-wear, textile apparel parts having the features of the invention and a device to carry out the method having the features of the invention.
BACKGROUND OF THE INVENTION
Concerning the treatment, particularly the pretreatment and/or dyeing of ready-to-wear, textile apparel parts as, for example, pants, skirts, dresses, blouses, sweat-shirts, T-shirts and so on, according to the industrial scale, the DE 37 34 314 A shows that these ready-to-wear, textile apparel parts to be treated are arranged in a cylindrical or cylinder-like fabric carrier. Hereby this basket-like fabric carrier is arranged preferably in a closable vessel, whereby the fabric carrier is arranged horizontally in the vessel relative to its central, longitudinal axis.
Furthermore the basket-like fabric carrier used in the known method immerses approximately half way into the treatment bath, so that the ready-to-wear, textile apparel parts arranged within the cylindrical or cylinder-like fabric carrier are on one hand displaced and on the other hand brought into contact with the corresponding treatment bath during a rotation of the fabric carrier. The perforated inner jacket of the fabric carrier can have ribs extending axially that improve the afore mentioned displacement and a radial superfusing of the fabric carrier by the bath during the rotation of the fabric carrier.
Conditioned by the fact that, according to the known method, during the treatment, the ready-to-wear, textile apparel parts are brought into contact with the treatment bath by the rotation of the cylindrical or cylinder-like fabric carrier and that thereby high centrifugal forces are intentively avoided, the known method requires long treatment times and extremely high bath ratios being ecologically and economically questionable. This again means that the known method shows the further disadvantage that the maximum portion is limited to a weight of between 80 kg to 100 kg of the ready-to-wear, textile apparel parts, since a sufficient dyeing of the textile apparel parts during the treatment is only guaranteed when the textile apparel parts have enough space within the fabric carrier and when they can float in the treatment bath.
SUMMARY OF THE INVENTION
The object of the present invention is to dispose a method as well as a device for the treatment of ready-to-wear, textile apparel parts, particularly for the pretreatment and/or dyeing, whereby this method, respectively this device allows a particularly regular treatment of the ready-to-wear, textile apparel parts to be treated at a relatively low bath ratio.
According to the invention this object is realized by a method with the significant characteristics of the invention as well as by a device with the significant characteristics of patent claim
11
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The inventive method for the treatment of ready-to-wear, textile apparel parts, particularly for the pretreatment and/or dyeing, provides an arrangement of the ready-to-wear, textile apparel parts to be treated that have the initially mentioned characteristics in a cylindrical or cylinder-like fabric carrier. Hereby the cylindrical or cylinder-like fabric carrier being from now also briefly called pack cylinder, is arranged in a preferably closable vessel during the treatment, whereby the pack cylinder filled with the ready-to-wear, textile apparel parts is moved within the vessel during the treatment of the textile apparel parts. According to the inventive method the ready-to-wear, textile apparel parts to be treated are arranged as a heap of ready-to-wear, textile apparel parts in the pack cylinder, whereby, according to the inventive method, the vessel is filled with the treatment bath only to such an extent and the treatment bath is pumped through the fabric carrier and thus through the heap of the ready-to-wear, textile apparel parts in that way that the ready-to-wear, textile apparel parts are displaced and particularly intermingled by the treatment bath flowing in the fabric carrier. In other words, the inventive method is different to the initially mentioned prior art mainly in that way that in the inventive method the ready-to-wear, textile apparel parts to be treated are displaced and at the same time also pretreated and/or dyed by the treatment bath superfusing the fabric carrier at a high speed, whereby therefore the treatment bath is pumped through the pack cylinder and thus also through the heap of the ready-to-wear, textile apparel parts to be treated.
The inventive method is based on the surprising fact that the ready-to-wear, textile apparel parts are impeccably displaced and perfused, respectively superfused despite the extremely low bath ratio (weight of ready-to-wear apparel parts:volume of treatment bath) used in the inventive method, so that particularly regular treatment effects, particularly dyeings, result within a very short time. This is even more amazing for the reason that specialists still in these day have the opinion that ready-to-wear, textile apparel parts can be regularly treated and homogeneously dyed only if this treatment, respectively dyeing, is carried out at an extremely high bath ratio.
The inventive method shows several advantages. As it is mentioned above, first of all as a first advantage it is to be pointed out that the inventive method, compared to the known method, allows the treatment of ready-to-wear, textile apparel parts at an essentially lower bath ratio than in the known method. This means exactly that the inventive method proceeds at a bath ratio (weight of ready-to-wear, textile apparel parts to be treated:volume of bath) of only about 10% to 30% of the bath ratio that is required for the usual method. This again leads to the fact that in the inventive method, compared to the usual method, extremely less water, chemicals, dyestuffs and energy are necessary and that correspondingly essentially less effluents emerge. For that reason the inventive method is not only ecologically but also economically more advantageous than the usual method. Furthermore it was surprisingly noted that the treatment effects being achievable by the inventive method as, for example, the residue values achievable by boiling, washing, desizing or the degree of whiteness achievable by bleaching or the regularities, the color depth and/or the colorfastness obtainable by dyeing, are much better and more homogeneous than in the usual method, even though the inventive method proceeds, as already described above, at an essentially lower bath ratio and even though in the inventive method the ready-to-wear, textile apparel parts which from now on are also called textile goods are formed as a heap of ready-to-wear, textile apparel parts. This improvement is caused by the fact that hereby on one hand an undesired formation of channels between the single parts and the formation of dead zones in the flow are avoided caused by the arrangement of the textile goods in a heap of textile goods and by the displacement during the treatment. On the other hand another reason for this improvement is that the treatment bath necessarily perfuses, respectively and particularly superfuses, the textile goods to be correspondingly treated at a high speed, since the treatment bath is pumped through the textile goods arranged in the pack cylinder. Furthermore the inventive method, compared to the usual method, allows a essential reduction of the treatment time, particularly of about 30% to 50%. This has next to the economical advantage also the advantage that the textile goods to be treated are stressed less during the treatment. This again causes a longer permanency of the textile goods treated according to the inventive method.
Moreover it was surprisingly noted that despite the high displacement of the textile ready-to-wear apparel parts an undesired damaging, particularly an undesired creasing and fixing of creases, did not occur during the treatment, even though the textile apparel parts to be correspondingly treated did not float in the treatment bath as this was the case
Proskauer Rose LLP
Stinson Frankie L.
Thies AG
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