Abstract: A pressure sealing device for a high pressure steamer. The device comprises a main sealing body including 2 to 5 stages with a pressure reducing chamber in each stage and arranged into one unified body with a textile product passage continuously provided in the middle part of each of the pressure reducing chambers. On opposite sides of each of the upper and lower end openings of the passage provided through the main body, there are disposed a pair of seal rolls which are in pressed contact with each other in such a way as to close the opening.

Abstract: In a heat fulling and water washing apparatus hot fluid is injected onto both surfaces of cloth from hot fluid injection nozzles being placed in upper and lower rows to sandwich the passing path of the cloth in such manner that the positions of nozzles in the upper row alternate with those of nozzles in the lower row, in a process of passing cloth through an opening between upper and lower net conveyors in such state as immersing the cloth in cleaning liquid, so that both cleansing effect and fulling effect are given to the cloth.

Abstract: A process for treating waste water containing polyvinyl alcohol (designated hereinafter as P.V.A.) comprising separation of the P.V.A. in the form of a compound with boric acid which is produced at pH 8 to 10 by a reaction with boric acid or borax added in the presence of an inorganic salt such as sodium sulfate, and using thus regenerated liquid repeatedly, and a process of utilizing waste containing P.V.A. for desizing textile.

Abstract: A pressure sealing method for sealing the inlet and outlet parts of a high pressure steamer which performs steaming with saturated steam of high temperature and high pressure in processing a textile product for desizing, scouring, bleaching, dyeing or the like. A pair or more than one pair of air pressure chambers made of a gas or fluid exudative material formed in a hollow cylindrical or semicylindrical shape or made of a gas impermeable thin plate are arranged to confront one another at the inlet or outlet part in the high steamer for the entry or exit of the treated product. The pressure of a pressure chamber of the steamer and that of atmospheric parts are shut off by one pair or more than one pair of nipping faces of these air pressure chambers which are pressed against one another. The treated product is allowed to pass through the inlet and outlet parts against the combined pressure developed between the nipping faces.

Abstract: A seal device for a high pressure steamer including a pair of rubber seal rolls pressed against each other and mounted on and forming a closure for the opening at one end of an inlet or outlet passage guiding the fabrics to be treated into or out of a high pressure steamer. The device also includes sealing plates disposed in pressed contact against the internal pressure of the steamer with pressure bearing surfaces of the rollsclose to the contacting or nip forming portion of the rolls for blocking the interior of the steamer from its exterior. A cylindrical duct is formed within the passage, with one end of the cylindrical duct communicating with the interior of the steamer while the other end is located close to the contacting portions of the seal rolls. An air port for supplying pressurized air is provided between the cylindrical duct and the passage.

Abstract: A high temperature and high pressure steamer which is made so it is possible to process a cloth giving the cloth impregnation or humidity of liquid in a suitable manner within a sealing mechanism of said high temperature and high pressure steamer when said cloth is processed by the steamer.

Abstract: The combination of an air sealing device and liquid sealing arrangement including an air pressure chamber and a liquid chamber which are arranged along the incoming and outgoing path lines of a cloth or textile material or the like, the path lines being formed between a plurality of sealing rolls disposed on a drum body of a high pressure steamer and the inside of the drum body. The air pressure inside the air pressure chamber is arranged to be balanced through a water column in the liquid chamber with a high pressure, high temperature steam existing inside the drum body.

Abstract: In a pressure seal apparatus for a high pressure steamer, seal rolls form a nip in a roll seal mechanism mounted on the fiber products feed in and take out openings of a high pressure steamer vessel body. The roll seal mechanisms shield the inside of the vessel from external air when fiber products are fed in or taken out and are positioned on the upper planes of a seal block through which a fiber products passage extends. Different members can be combined with the seal rolls in forming the seal mechanism, such as intermediate rolls formed as water permeable hoses are inserted into concave parts provided on opposite sides of the fiber products passage through the seal block. In another embodiment an elastic sealing member is placed in contact with the seal block and the seal rolls. In still another embodiment a shielding valve is provided at one end of the fiber products passage for regulating vessel internal pressure and preventing sudden pressure leakage.

Abstract: A method of forming a pressure seal by employing an air balance in a high pressure steamer in which pressurized sealing gas is introduced into an air seal chamber which is shut off from the outside air by a roll seal mechanism installed at the fiber feed in and take out openings of a high pressure steamer vessel body, so that the sealing gas and steam leaking from within the vessel body into the air seal chamber buffer each other for forming and air balance within the vessel body.