TW200426266A - Method and device for the uniform bonding of a non-woven - Google Patents

Abstract

The invention relates to a discontinuous non-woven formed by a carder, or other non-wovens formed from filaments. On account of the longitudinally oriented lengths of fiber after, for example, hydrodynamic needle punching, the aforementioned non-wovens are stronger in the longitudinal direction than in the transversal direction. This fact can be changed if the pre-bonded non-woven undergoes a reorientation of the fibers, for example, during a lateral stretching treatment. The fibers already intertwined in the non-woven are at least partially reoriented, for example, in the transversal direction. In this new position, another hydrodynamic bonding treatment can be carried out, in order to fix the fibers in the aforementioned new position. In this way, the non-woven is generally stronger than would be possible without the reorientation of the fibers.

Description

200426266 发明 Description of the invention: [Technical field to which the invention belongs] Wool fibers composed of a bundle of fibers and / or long fibers, such as spunbond fibers, and / or wool fibers mixed with natural fibers, such as pulp, due to its Various manufacturing conditions in the longitudinal and transverse directions cannot obtain a uniform fiber distribution. Basically, the fibers extend along the longitudinal direction of the wool, giving them a small amount of strength in the transverse direction after, for example, a hydrodynamic weaving process. [Summary of the Invention] The main task of the present invention is to invent a method of how to obtain a uniform hardened wool on a plane formed in the direction of MD and CD, and thereby obtain a whole hardened wool. The solution to this task can be learned from the fact that the wool is before, during and / or after a first hydrodynamic weaving process, and / or immediately before a hydrodynamic weaving process, Over its entire width, at least a part of the fibers should be reoriented \ then the wool core is further processed. The reorientation of the fibers can be produced by rolling out laterally, orientable by presses and / or surface treatments only, such as brushes, or by tilting them sideways and out of alignment, or by changing the water jet in f direction method. As a result, the wool as a whole can obtain a higher strength, which is higher than the strength that the non-reoriented fibers can achieve. This treatment method can also be performed one by one multiple times. At this time, it can be noticed that the wool is uniformly spread over the entire width, for example, when the raw wool is supported in full plane by _, a brush or a press, it cuts t anyway, and the force on the wool is fresh. 'It is invading evenly through the cut of the width of the wool. ^ With regard to these devices, in the field of textiles, it has been conventionally used for the treatment of knitted and knitted fabrics. 5

Claims (1)

200426266 Patent application scope: 1. A method for uniformly hardening wool fibers, which is composed of bundled fibers and / or long fibers, such as artificial fibers made directly in advance, and if necessary, mixed with natural fibers, for example By a carding machine, or after a reduced-movement treatment method and / or by a spunbond method, and the fibers are subsequently interwoven with each other through a hydrodynamic weaving process, at this time the wool is single-sided or double-sided Withstands a series of water jet hardening processes, characterized in that the wool precedes a first hydrodynamic weaving procedure. During processing and / or after processing, and / or immediately before and after the application of the power-driven weaving procedure, during processing and / or after processing, at least the fiber is redirected over its width, and then Only wool can withstand further water jet processing. 2. The method according to item 1 of the scope of the patent application, characterized in that the wool with the fiber partially redirected is tied over the width. 3. The method according to item 1 and / or item 2 of the scope of the patent application, characterized in that the wool is evenly flattened to the width after a hydrodynamic knitting procedure. 4. According to the method described in item 1 and / or item 2 and / or item 3 of the patent application scope, characterized in that the wool is evenly distributed over the width after a hydrodynamic knitting procedure, at In a direction across the conveying direction, for example, a scraping operation is performed. 5 The method according to item 1 and / or items 2 to 4 of the scope of the patent application, characterized in that, after a hydrodynamic knitting procedure, the wool is evenly distributed across the width and across the direction of transmission. Hit with a water jet in the direction. 6 The method according to item 1 and / or items 2 to 5 of the patent application park, characterized in that, after a hydrodynamic weaving process, the wool is transmitted perpendicular to the face of the wool by crossing it Direction, impinging with a variable water jet. 6 200426266 7 · According to the scope of patent application! The method according to item 6 to item 6, characterized in that the wool is subjected to hydrodynamic weaving for several consecutive times, then flattened and / or pressed and / or scraped across its width, and then knitted again. 8. The method according to any one of claims 1 to 7 in the scope of the patent application, characterized in that the wool is completely spread or scraped on the wool with a fully supported width. . 9. The method according to any one of the scope of the patent application, characterized in that the pre-hardened wool is supplied to another wool and both are hardened. 10 · A device for stiffening wool fibers, which is used to perform the method described in any one of the scope of the aforementioned patent application, characterized in that a device for water weaving and a spreading device immediately thereafter, It twists the pre-hardened wool evenly across its width. U. The device according to the method described in item 10 of the scope of the patent application, characterized in that the spreading device is followed by a water weaving device and so on. 12. · A device for stiffening wool fibers, which is used to perform the method described in any one of the scope of the aforementioned patent application, characterized in that a device for water weaving and a pressure and / or scraping immediately following it In combination with a brush device and / or a hydrodynamic weaving device, it changes the fiber direction of the pre-hardened wool uniformly across its width. 200426266 (1) Designated representative map: (1) The designated representative map in this case is: (). (2) Brief description of the element representative symbols of this representative map: 捌 If there is a chemical formula in this case, please disclose the chemical formula that can best show the characteristics of the invention: