Production method for an absorbent fiber product and corresponding absorbent fiber product
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Abstract
The invention relates to a method for producing an absorbent fiber product, starting with a parent fiber product that comprises fibers that, on the one hand, lie at a statistical distance from one another and, on the other hand, make contact with one another at contact points. The method comprises treating the parent fiber product with a fluid medium in such a way that the fibers are at least partially wetted and the fluid medium is then rapidly evaporated by irradiation, so that the evaporation pressure generated by the evaporating fluid medium has a kinematic effect on the fibers, which increases the distance between them. In this way the risk of inadvertent, in particular, thermal damage to the fibers is eliminated. Furthermore, the intrinsic fiber structure is left unaffected, or is only affected in a controlled manner. This prevents the uncontrolled destruction of the fiber structure and a detrimental effect on the fiber product, for example, to its tear resistance when wet. Instead, the proposed method achieves an expansion of the fiber product on a microscopic scale by increasing the distance between the fibers. In a further embodiment, the intrinsic fiber structure can be controlled and affected in a targeted manner if necessary, by controlling the time period between the wetting of the fibers and the evaporation of the fluid medium.
3 Citations
34 Claims
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1-14. -14. (canceled)
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15. A method for producing an absorbent fiber product comprising:
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treating a parent fiber product with a fluid medium such that fibers of the parent fiber product are at least partially wetted, and rapidly evaporating the fluid medium by irradiation between the fibers, so that evaporation pressure generated by the evaporating fluid medium has a kinematic effect on the fibers, which increases the distance between the fibers. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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- 31. A method for producing an absorbent fiber product, comprising contacting a parent fiber product with a fluid medium such that fibers of the parent fiber product are at least partially wetted, and irradiating the fibers so that fluid medium between the fibers is rapidly evaporated and an absorbent fiber product is produced that has greater absorbency than the parent fiber product.
Specification