|Publication number||US3898821 A|
|Publication date||Aug 12, 1975|
|Filing date||Jul 2, 1973|
|Priority date||Jul 6, 1972|
|Also published as||DE2233308A1, DE2233308B2|
|Publication number||US 3898821 A, US 3898821A, US-A-3898821, US3898821 A, US3898821A|
|Original Assignee||Kuesters Eduard|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (7), Referenced by (3), Classifications (12)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent [191 Kutz [ TREATMENT CHAMBER FOR A CONTINUOUSLY MOVING WEB  Inventor: Johannes KutztSt. Tonis. near Krefeld, Germany ['73] Assignee: Eduard Kusters, Krefeld-Forstwald,
Germany  Filed: July 2, 1973  Appl. No.: 375,743
 Foreign Application Priority Data July 6, 1972 Germany 2233308  U.S. Cl. 68/5 E; 34/242 68/5 E  Int. Cl. F26b 25/00  Field of Search 68/5 E, 5 D, DIG. 5;
 References Cited UNlTED STATES PATENTS Mather 68/5 E Aug. 12, 1975 761,107 5/1904 Rovira 68/5 E 1,423,242 7/1922 Minton... 34/242 2,415,379 2 1947 Vieira 68/5 E 2,443,443 6/1948 Chavannes 34/242 X 2,890,878 6/1959 Steinherz et 211.. 34/24 3,158,507 11/1964 Alexander 68/5 E Primary Examiner-Billy J. Wilhite Attorney, Agent, or Firm.Kenyon & Kenyon Reilly Carr & Chapin 57 ABSTRACT An improved treatment chamber for treating a continuously moving web in which the treatment chamber is constructed in a manner such that it can be divided into sub-chambers or used as a large chamber by simply opening or closing a lock between the subchambers whereby different types of web treatment may be efficiently carried out in a single treatment apparatus.
8 Claims, 1 Drawing Figure TREATMENT CHAMBER FOR A CONTINUOUSLY MOVING WEB BACKGROUND OF THE INVENTION This invention relates to treatment chambers for moving webs and the like in general and more particularly to an improved treatment chamber of this type which may be subdivided into sub-chambers.
In the textile industry, webs of material which have had dyes applied thereto are often treated in a treatment chamber containing steam in order to set the dyes which have previously been applied ln such treatment chambers the web will follow a winding path within a steam atmosphere. The length of web within the chamber at any given time is called the web content of the chamber. For a given rate of speed through the chamber an increment of web will take longer to pass through a large treatment chamber (one with a large web content) than through a small treatment chamber.
Webs are treated differently depending on the type of material being treated and the type of dye which has been applied to it. Some dyes and/or materials require shorter times in the steam atmosphere than do others. For example, webs made of a mixture of acryl and cotton are normally processed for a steam time of 8 to minutes. On the otherhand, indantherene dyed webs may only be processed for a steaming time of approximately 1 minute without the dye material running. Thus, if a small treatment chamber is used for treating acryl and cotton materials the materials must be passed through the steamer at a very slow rate of speed resulting in uneconomical operation since only a small quantity of material can be treated in a given period of time. On the other hand, if a large treatment chamber is used, which can handle this type of material, problems occur when trying to treat material which can only tolerate short treatment periods. In such a large treatment chamber or steamer, when such materials are being treated, the rate of speed atwhich the material runs through must be increased to an extremely high speed. This creates problems both in operating the treatment chamber and more importantly in the operation of associated equipment such as washing units through which the web is passed after the steam treatment. These must have their capacities increased in the range of 3 to 10 times in order to achieve proper washing at such a high speed.
In view of these problems very often different size treatment chambers were required in prior art installations in order to economically and efficiently handle different types of materials and different dyes. Thus, it can be seen that there is a need for an improved treatment chamber which is capable of treating various types of materials which have been dyed with various types of dyes and thus require different lengths of treatments.
SUMMARY OF THE INVENTION The improved treatment chamber of the present invention has the capability of treating a continuously moving web for different periods of time without excesssive variations in the rate of speed at which the web is moved through the treatment chamber. To accomplish this the treatment chamber is divided into two or more sub'chambers with intermediate walls between the sub-chambers. Each of the walls contains a controllable steam lock which can be either opened to permit steam to pass between the chambers or closed to isolate the chambers from each other. Thus if a long treatment period is required the lock may be opened and all the sub-chambers filled with steam to obtain the required treatment. On the other hand, if a short treatment period is required, one or more of the sub-chambers may be isolated and steam only supplied to the remaining sub-chambers.
In the illustrated embodiment the treatment chamber is divided into two sub-chambers with a lock between them. In addition, the second of the sub-chambers is equipped with washing or rinsing apparatus so that when operating using only one of the chambers for steam treatment the other may be used for washing or rinsing. This washing and rinsing equipment is designed so that it may be inactivated when it is desired to use both sub-chambers for steam treatment.
BRIEF DESCRIPTION OF THE DRAWING The single FIGURE is a vertical longitudinal section through a ribbon steamer or treatment chamber constructed according to the present invention.
DETAILED DESCRIPTION OF THE PERFERRED EMBODIMENT Y 9 in conventional fashion. Tensioning rollers 9 are supported for rotation on an arm and maintain the web in a tensioned condition (avoiding folds in the material) as it passes through the chamber. At the opposite end of the chamber, the web 4 passes through an exit lock 10 having similar suction means to prevent steam from leaking out of the chamber. In'the illustrated embodiment the web is then passed through rinsing equipment 11 and a squeezing apparatus 12. As noted above, prior to entering the treatment chamber the web 4 will have been dyed, with the purpose of the treatment chamber 1 being to properly set the dye. After exit through the exit lock 10 treatments other than those illustrated by the rinsing apparatus 11 and squeezing apparatus 12 may also be performed.
The treatment chamber 1 is divided into two separate sub-chambers designated by the brackets 17 and 18 using a well 15 containing water lock 16. As illustrated, the water lock 16 is filled with water which effectively acts as a barrier between the atmosphere in the subchamber 17 and that in the sub-chamber 18. Thus the sub-chamber 17 may be filled with steam while the sub chamber 18 contains only air. Similarly the subchamber 18 may be filled with steam with the subchamber 17 containing air. The use of a lock such as the water lock 16 permits ease of conversion from an apparatus having two chambers to a single chamber apparatus. By simply draining the water from the water lock 16 and filling both sub-chambers with steam continuous steam treatment through the total length of the chamber 1 may be maintained. Other types of locks may also be used. For example, a labyrith structure with suction, similar to that described in connection with the entrance and exit locks, and which extents transversely on both sides of the web may be used. A sealing roller pair between which the web passes, may equally well be used. With thesuction type lock, it is only necessary to turn off the suction in order to permit the atmospheres in the two sub-chambers to communicate with each other and to establish a lengthened treatment chamber. With the sealing rollers a similar effect may be obtained by separating the rollers from one another. It is also possible to install a wall containing a lock which is removable. In that case, when a large chamber is required, the wall is removed, and, when a smaller chamber is required, the wall inserted. The latter arrangement has the disadvantage that in order to remove and replace the wall it is necessary to break the continuity of the web. With the types of lock described above which may be selectively opened and closed, a continuous web through the treatment chamber may always be maintained. When changing from one material to another it is only necessary that the starting end of the new roll be sewn on to the end of the old roll so that it will be drawn continuously through the chamber.
Steam for the chamber is provided by using a plurality of heating coils 14 to heat water 13 which is placed in the bottom of the chamber. Separate heating coils 14 and 14' are provided to heat the water 13 and 13 in chambers 17 and 18 respectively. The heating coils are operable separately and means are provided to supply to and drain water from the separate sub-chambers. Thus, when operating with steam in only one subchamber, the water may be drained out of the other and its associated heating coils turned off. As noted above, steam may be generated in either the chamber 17 or the chamber 18 It is preferred, however, that the chamber 17 be used for steaming in which case, when the chamber 18 is not also required for ste'aming, it may be used for washing or rinsing. Thus, there is shown installed within the subchamber 18 washing and rinsing apparatus 19. When only the chamber 17 is being used for steaming the trough of apparatus 19 may be filled with water for rinsing the material after steam treatment. If the full length of the treatment chamber 1 is required for steaming the rinsing water may be drained and the washing or rinsing apparatus 19 deactivated when the lock is opened.
Although only two sub-chambers have been shown it will be recognized that further divisions of a large chamber such as chamber 1 are possible. For example a three sub-chamber apparatus is possible in which the first chamber is adapted for steaming the second for rinsing and oxidation and the third for washing. Of course as in the illustrated embodiment the second and third chambers will also be usable for steaming when required. If the treatment in two different atmospheres is required (e.g. steam and some other gas,) then the second sub-chamber may be filled with a different treatment atmosphere with the first one provided with steam as described above. The types of locks described above will provide excellent isolation of the two different atmospheres. f
Thus an improved treatment chamber for steam treating continuously moving webs which has a large degree of flexibility permitting treatment of various types of material in an economical manner has been shown. Althoug a specific embodiment has been illustrated and described, it will be obvious to those skilled in the art that various modifications may be made without departing .from the spirit of the invention which is intended to be limited solely by the appended claims.
What is claimed is:
1. A treatment chamber for treating a continuously moving web of textile material comprising:
a. an elongated treatment chamber having means for directing the moving textile web in a winding path therethrough;
b. means iii-cluding at least one wall and a lock through which the web passes for separating said elongatedchamber into a plurality of at least to sub-chambers, said lock being operable to be opened, to allow free passage of the atmosphere from one chamber to the other and closed to seal one chamber from the other; and i c. means to individually and selectively. provide a treatment atmosphere to each of the subchambers.
2. The invention according to claim 1 wherein said means to provide a treatment atmosphere comprises means to individually supply steam to each of said subchambers.
3. The invention to claim 1 wherein said chamber is divided into two sub-chambers.
4. The invention according to claim 3 wherein the means for subdividing said chamber into two subchambers comprises ,a permanently positioned wall having installed therein a lock which is operable so as to be opened and closed to respectively permit communication between the atmosphere in one chamber with that in the other and to seal one chamber from the other.
5. The invention according to claim 4 wherein said lock comprises a water lock.
6. The'invention according to claim 1 and further including means in one of said sub-chammbers selectively operable to provide further treatment to the web passing therethrough.
7. The invention according to claim 6 wherein said treatment apparatus for further treatment comprises washing and rinsing apparatus.
8. The invention according to claim 1 wherein one of said sub-chambers include means forproviding a treatment atmosphere which is different from the treatment atmosphere in at least one of the other sub-chambers.
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|U.S. Classification||68/5.00E, 34/242|
|International Classification||D06B17/00, D06B23/16, D06B23/00, D06B19/00|
|Cooperative Classification||D06B23/16, D06B19/0035, D06B17/00|
|European Classification||D06B19/00B3B, D06B23/16, D06B17/00|