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AssigneeThe Commonwealth of Australia Commonwealth Scientific and Industrial Research Organization
InventorsCuong Viet Le, Nhan Gia Ly, Peter William Chudleigh, David Henry Tester, David Graham Phillips
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A method and apparatus for continuously pressure decatising a fabric include a rotatable drum (12) around which an endless belt (15) is arranged to travel for conveying a fabric (19) (and optionally a moisture laden textile (20)) between the facing surfaces of the belt (15) and the drum (12). The drum (12) is heated and fabric (19) is pressed between the belt and the drum as it is conveyed through the apparatus. The fabric (19) is subjected to pressurized saturated steam, which may be generated by evaporation of the moisture in textile (20) when it contacts the heated drum, as it is pressed. Various options other than use of a moisture laden textile (20) for supplying the steam are disclosed. The invention involves enclosing the drum in a pressure vessel (14) within which a compressed air atmosphere at ambient temperature is maintained. The surrounding compressed air atmosphere can be used to control the steam temperature, that is, the saturated steam temperature can be changed by changing the pressure of the surrounding compressed air. The surrounding compressed air atmosphere also reduces the sealing requirements for the steam treatment and belt wear. The method and apparatus are also applicable for setting staple fibers.
A method for continuously pressure decatising a fabric including the steps of
A method for setting staple fibers wherein the fibers are contained in an assembly of fibers comprising a sliver, roving, strand, or yarn, the method including the steps of
Apparatus for continuously pressure decatising a fabric including first and second conveying members for continuously transporting a fabric along a predetermined path, wherein each conveying member includes a facing surface and the fabric is pressed between the facing surfaces as it is transported by the first and second conveying members along the predetermined path, wherein a treatment zone for the fabric is substitutively defined by the facing surfaces of the first and second conveying members and a portion of the length of the predetermined path;
Apparatus for setting staple fibers wherein the fibers are contained in an assembly of fibers comprising a sliver, roving, strand, or yam, the apparatus including means for conveying the assembly of fibers through a treatment zone, means for constraining the fibers as they pass through the treatment zone, means for providing a saturated or superheated steam atmosphere at a high temperature within the treatment zone, and a pressure vessel for containing a pressurized gas, wherein the treatment zone is contained within the pressure vessel and wherein the pressure of the compressed gas is controllable to thereby controllably establish ;a high temperature for the saturated or superheated steam atmosphere within the treatment zone.
Dependencies are inferred from the claim text.