Fiber bale and a method for producing the same
View Patent ↗The instant application relates to a fiber bale and a method for producing the same. The instant fiber bale includes a highly compressed hexahedral fibrous material substantially free of disrupting curvatures on a top side or a bottom side. The highly compressed hexahedral fibrous material has a packing density of at least 300 kg/m 3 . The method for producing a fiber bale according to instant invention includes the following steps: (1) providing a press for producing a highly compressed hexahedral fibrous material comprising at least one convex bale platen; (2) filling the press with the fibrous material; (3) pressing the fibrous material via the press; (4) thereby forming the highly compressed hexahedral fibrous material; (5) packaging the highly compressed hexahedral fibrous material with a wrapping material; and (6) securing the wrapping material thereby producing the fiber bale.
1. A method for producing a fiber bale comprising the steps of:
providing a bale press comprising an upper convex bale platen and a lower convex bale platen, each of the convex bale platens includes a convex surface, the convex surface having a high point and a base, a distance between the high point and the base is about 1 cm to about 10 cm;
filling said press with a fibrous material;
pressing said fibrous material via said press by exerting a total pressure in a range of about 70 psi to about 700 psi on said fibrous material for about 1 second to about several minutes;
thereby producing a highly compressed fibrous material;
retracting at least one of said bale platens thereby allowing said highly compressed fibrous material to expand about 0 to 25 percent by height;
packaging said expanded highly compressed fibrous material with a wrapping material;
securing said wrapping material, thereby producing a highly compressed hexahedral fibrous material substantially free of disrupting curvatures on a top side or a bottom side, wherein a crown height of said highly compressed hexahedral fibrous material being at least 50 percent less than a crown height of a bale pressed by standard flat platens after a period of 48 hours out of said press.
2. The method for producing a fiber bale according to claim 1 , wherein said fiber bale being vacuum free.
3. The method for producing a fiber bale according to claim 1 , wherein said method further including the step of drawing vacuum on said fiber bale.
4. The method for producing a fiber bale according to claim 1 , wherein said wrapping material being selected from the group consisting of an air-permeable material, an air-impermeable material, and combinations thereof.
5. The method for producing a fiber bale according to claim 1 , wherein said fibrous material being cellulose acetate filament tow.