Textiles: fluid treating apparatus – Machines – Plural fluid treating machines
Patent
1981-08-05
1984-10-23
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
Plural fluid treating machines
68 58, D06F 3100
Patent
active
044780605
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a method of simultaneously laundering different laundry items, consisting for example of either white laundry items or colored laundry items, in a continuous washing machine having a plurality of laundry zones, containing, if applicable, several laundry compartments, wherein the laundry items fed at the start of the laundering machine cyclically and consecutively in the area of the loading and/or soaking zone into the washing machine are transferred in each case, following a pre-determined treatment or a synchronized period of time, automatically into the next laundry compartment and delivered at the end of the washing machine cyclically and consecutively.
The invention moreover relates to a continuous washing machine appropriate and intended for carrying out the above-mentioned method for the washing of laundry, comprising a washing drum rotatable about its longitudinal axis, whose washing compartments, substantially separated from each other bathwise, are connected in each case to an adjacent laundry compartment by a countercurrent conduit, by means of which during the transportation of the laundry items from one laundry compartment to the next one, a partial current of the liquid in the laundry compartment located at the start of the drum end, is to be conducted in countercurrent to the laundry supplied batchwise and located at the start of the drum, traversing the laundry compartments cyclically and consecutively through the washing machine, said countercurrent consisting of a liquid fed via a feed current, and also comprising a soaking conduit through which the remainder of the fluid supplied at the drum end is to be conducted from the rinsing zone located at the drum end to the loading and soaking zone located at the start of the drum
Basically two different methods are to be distinguished for the washing of laundry, namely on the one hand the multiple-lye method, wherein the laundry lye is exchanged at the end of the individual washing zones, that is to say, it is drained and replaced by new laundry lye, and on the other hand, the flow method, wherein the laundry to be washed is accompanied during its travel through the washing machine by the laundering lye.
Within the scope of the fluid flow method, the so-called countercurrent method is preferred for different reasons, whereby the washing zone (rinsing zone) located at the end of the washing machine is supplied via a feed conduit with fresh water which traverses the machine upon leaving the rinsing zone then with a partial current in counterflow to the laundry, while the preponderant residual current of the liquid fed at the end of the washing machine is supplied via a connection with the loading and soaking zone located at the start of the washing machine and designated here as a soaking conduit.
The countercurrent method is to be preferred over the other known washing methods, already for the reason that the water requirements percentagewise are lower (for example by 25%) against the quantity traversing the washing machine in countercurrent to the laundry. In addition, savings also are accomplished in detergents, detergent additives and last but not least also in energy needed for the heating up of the laundry lye by zones, so that continuous countercurrent washing machines have been making inroads to a considerable extent during the past years in the art.
Washing laundry in a countercurrent continuous washing machine is problem-free, as long as at the same time and always only laundry items of the same kind (that is for example only white laundry items) are in the washing machine; such laundry items not only are to be treated alike, but they cannot influence each other detrimentally. However, the latter may occur when laundry items of different types, that is for example laundry items consisting of what laundry on the one hand and colored laundry on the other hand are fed in random sequence into such a washing machine and thus are present also simultaneously in the washing machine. For under such conditions due to the d
REFERENCES:
patent: 2700287 (1955-01-01), Sulzmann
patent: 3145554 (1964-08-01), Grimes
patent: 3550406 (1970-12-01), Jack, Jr. et al.
Coe Philip R.
Engelhardt & Forster KG
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