Fiber-based carrier structure for liquids and solid particles and method for producing the fiber-based carrier structure

Abstract

A fiber-based carrier structure is made of fractions of industrially produced reinforcing fibrous materials, which contains endless fibers in a tangled arrangement as a first reinforcing fiber component and which contains endless fiber bundles as a second reinforcing fiber component. The fiber-based carrier structure further has a pore system. Accordingly, the endless individual fibers and the endless fiber bundles are used as a mixture preferably in an isotropic tangled arrangement to produce a fiber-based carrier structure, the pore system of which is an open-cell pore system and is openly accessible from outside. The fiber-based carrier structure enables the absorption of liquids and/or solid particles by the selection of a defined mixture ratio of endless fiber bundles and endless individual fibers. A capacity to be impregnated with and the capacity to absorb liquid and/or solid powdery materials can be set by the mixture ratio.

1 . A fiber-based carrier structure for liquids, melts and solid particles, comprising:
 industrially produced reinforcing fiber materials having finite single fibers in a random configuration as a first reinforcing fiber component and finite fiber bundles as a second reinforcing fiber component, said finite single fibers and said finite fiber bundles being present as a mixture in a defined mixing ratio of from 1:9 to 9:1, said finite fiber bundles having a fiber length distribution; and   a pore system being open-cell and openly accessible from an outside.   
     
     
         2 . The fiber-based carrier structure according to  claim 1 , wherein said finite single fibers and said finite fiber bundles are present in an isotropic, random configuration. 
     
     
         3 . The fiber-based carrier structure according to  claim 1 , wherein said pore system is a pore structure having a loose fiber filling being partially consolidated and mechanically, thermally and/or chemically stabilized and fixed. 
     
     
         4 . The fiber-based carrier structure according to  claim 1 , wherein single fibers in a mixture of said finite fiber bundles and said finite single fibers have been obtained by incomplete opening of fiber bundles. 
     
     
         5 . The fiber-based carrier structure according to  claim 1 , wherein said finite fiber bundles have a bundle thickness of at least 10 single fibers which adhere to one another in parallel over at least 50% of a fiber length. 
     
     
         6 . The fiber-based carrier structure according to  claim 1 , wherein at least a proportion of said finite single fibers have a fiber length distribution. 
     
     
         7 . The fiber-based carrier structure according to  claim 1 , wherein said finite fiber bundles have a mean length which is different from that of said finite single fibers. 
     
     
         8 . The fiber-based carrier structure according to  claim 1 , further comprising at least one of softenable binding fibers or a powder which are added, in a uniformly distributed manner, before a fiber layer is formed. 
     
     
         9 . The fiber-based carrier structure according to  claim 1 , wherein the industrially produced reinforcing fiber materials used as a starting material have a uniform substance nature and geometry or are a mixture of fiber materials of different substances and/or geometry. 
     
     
         10 . A method for producing a fiber-based carrier structure, which comprises the steps of:
 weighing gravimetrically at least one fiber component in bundle form and at least one single-fiber fiber component; and   mixing the least one fiber component in bundle form and the at least one single-fiber fiber component using a textile mixing technique resulting in a fiber mixture.   
     
     
         11 . The method for producing a fiber-based carrier structure according to  claim 10 , which further comprises laying at least one of volumetrically or pneumatically, the fiber mixture, in a layer having a thickness of from 0.5 to 20 cm loosely and without prior orientation. 
     
     
         12 . The method for producing a fiber-based carrier structure according to  claim 10 , which further comprises laying at least one of volumetrically or pneumatically, the fiber mixture, in a layer having a thickness of from 2 to 10 cm, loosely and without prior orientation.