Textiles: fluid treating apparatus – Machines – Combined
Patent
1999-08-18
2000-12-12
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
Combined
68175, 68180, D06B 318, D06B 332
Patent
active
061582565
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a device for providing a liquid treatment to a textile web. Typically, such a device will have at least one driven one driven winding roller onto which the textile web can be wound. A basin is provided below the winding roller in each instance and extends over the length of the machine; it can be filled with treatment liquid. Such machines also typically have at least one deflection roller for the textile web and a guide roller which extends parallel to the axis of the winding roller over the width of the textile web, and which rests against the fabric roll which forms on the winding roller, from below. The textile web is guided into the basin from below around the deflection roller up to the guide roller, and through the nip between the guide roller and the fabric roll, onto the fabric roll.
Such devices or parts of devices primarily occur in jiggers which include two winding rollers, arranged next to one another in a housing, at equal height, parallel to one another, and reversibly driven, between which the textile web can be wound back and forth. Under the winding rollers, a container arrangement is provided, through which the web is passed when it is wound from one winding roller to the other, before it is wound onto the winding roller which is winding the web up at that time. The basin of the basin arrangement assigned to the winding roller which is winding up the web, and this winding roller itself, form the device with which the invention is concerned.
A jigger in which the device according to the preamble is implemented is evident from DE 36 12 999 C2.
In recent times, because of fashion developments, there has been a particularly great demand for thin, almost translucent fabrics made of acetate or viscose, which are to be dyed a uniform color on a jigger. In this connection, fabric finishers are making ever greater demands with regard to the working speed and the volume capacity of the individual rollers.
It has been shown that textile webs of the type in question can be processed without problems, up to a length of approximately 1000 m, on conventional jiggers with winding rollers with a diameter of approximately 300 mm. However, if lengths on the order of 3000 to 5000 m are to be wound onto a roller, there are difficulties in the uniformity of the dye color. A fabric finisher demands that the guide roller does not rest against the fabric roll which forms on the winding roller which is winding up the web, because otherwise the web will be squeezed, when using the usual closed guide rollers, and significant portions of the dye liquid entrained from the container by the web will be removed. Since the fabrics in question, such as acetate or viscose, are not particularly receptive to the dye, a large number of passages on the jigger is required in order to bring about the necessary uniformity of dye color. Not enough dye liquid is "wound in." On the other hand, in order for perfect formation of the fabric roll, particularly in the case of thin webs which lie on top of one another in many layers, it is absolutely necessary to exert an influence on the cylindricity of the fabric roll by resting the guide roller against it, thereby giving it a certain hardness, because otherwise the fabric roll is too unstable. These two requirements run counter to one another.
SUMMARY OF THE INVENTION
This invention is directed to the object of providing a device of the general type set forth above such that it is possible to wind up multi-layer fabric rolls or rollers, as described, without too much of the treatment fluid which has been applied being removed from the textile web. The solution presented herein entails using guide rollers having isolated openings on its otherwise cylindrical circumference, which are surrounded all around by the cylindrical circumference of the guide roller which are arranged so as to avoid zones without openings which run in the circumference direction. These openings are uniformly distributed over the circumference of the guide r
Dvorsky Drahomir
Krebs Stefan
Kurschatke Wolfgang
Coe Philip R.
Eduard Kusters Maschinenfabrik GmbH & Co. KG
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