Textiles: fluid treating apparatus – Machines – With gas – steam or mist treating
Patent
1996-03-06
1998-06-02
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
With gas, steam or mist treating
34643, 68 5D, 68 20, 68181R, D06B 508
Patent
active
057585202
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a fabric treatment apparatus. More specifically, it relates to an apparatus suitable for efficiently performing various treatments on textile fabrics, such as washing, desizing, scouring, resin impregnation, drying, dewatering, hand adjustment, dyeing, fluff removal, and the like.
BACKGROUND ART
Common continuous treatment methods for washing, etc. of textile fabric include a method in which a plurality of guide rollers are arranged in a zig-zag pattern in a treatment bath and the fabric is guided through at full width (hereunder referred to as the "guide roller method"), and a process in which the fabric is introduced into the treatment apparatus in the form of a rope, passed through a treatment bath, roller, reel, jet nozzle, etc., circularly transported in a spiral shape through first, second, third, and additional successive rows in the apparatus, and then taken out of the apparatus (hereunder referred to as the "continuous winch process"). Japanese Patent Publication No. 4-501892 discloses, as a method for continuous treatment of fabric to be washed, etc., one wherein the fabric is passed at full width through a vertical path, and a treatment medium is blown into the path in the form of vapor or gas to treat the fabric while producing turbulence under pressure.
On the other hand, as methods of continuous dewatering treatment of fabric at full width, there may be mentioned a method in which the fabric is passed through rollers, and pressure is applied to the rollers to nip and dewater the fabric (nip roll method), or a method in which the suction nozzle of a vacuum pump is contacted with the fabric to draw out moisture, etc. from the fabric to dewater it (vacuum dewatering method).
Desizing washing of printed fabric involves reductive washing in an aqueous alkali solution for removal of printing paste and improvement in dye fastness. For an improved washing effect, the fabric must be washed by thorough contact with the washing water while providing a rubbing effect, but without exerting tension.
The guide roller method described above has the advantage of good workability in treating fabric at full width, and also of low color contamination, etc. which is a problem associated with desizing washing of prints. However, since the freedom of the fabric in the treatment bath is restricted it often occurs that almost no rubbing effect is achieved, resulting in insufficient washing in the treatment solution, while tension also acts on the fabric to result in an inferior hand. In addition, because of other possible problems such as small fabric-holding capacity of the treatment bath, this method is not often used for desizing washing of prints.
The continuous winch process has the advantage of allowing extended contact between the fabric and the washing water, and producing a rubbing effect by movement within the bath without exerting tension on the fabric, and thus it is presently the main method used for desizing washing of printed fabrics. However, since this method treats the fabric in rope form, the fabric can become "dumpling-shaped" during the circular transport into a spiral shape, leading to working problems so that the fabric can no longer be transported, etc., as well as other problems including color contamination inside the rope.
The method in Japanese Patent Re-Publication (Kohyo) No. 4-501892, whereby fabric is treated by blowing vapor or the like from a nozzle into a vertical path to create turbulence in the path under pressure, thus exerts excessive force on the fabric, which can incurring damage to the fabric. Also, the apparatus disclosed in this document requires considerable structural strength and is therefore costly.
The nip roll method and vacuum dewatering method for continuous dewatering treatment of fabric involve contacting the fabric with a roller or suction nozzle, and thus can result in flow and friction marks on the fabric.
DISCLOSURE OF THE INVENTION
It is therefore an object of the present invention to overcome the aforem
REFERENCES:
patent: 2008230 (1935-07-01), Spooner
patent: 4290210 (1981-09-01), Johansson
patent: 4796557 (1989-01-01), Shibata et al.
patent: 5181329 (1993-01-01), Devaney, Jr. et al.
patent: 5233717 (1993-08-01), Weber et al.
Hasuta Hisashi
Hirano Tsukasa
Kitade Yoshihide
Coe Philip R.
Komatsu Seiren Co., Ltd.
Onomori Iron Works Co., Ltd.
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