CN-122013448-A - Low-fuzzing twin-spinning non-woven material and preparation method thereof

CN122013448ACN 122013448 ACN122013448 ACN 122013448ACN-122013448-A

Abstract

The invention discloses a low-fuzzing twin-spinning non-woven material and a preparation method thereof, wherein the low-fuzzing twin-spinning non-woven material comprises the following components: the novel wood pulp fiber composite fiber comprises an air flow fiber web layer, a first melt-blown fiber web layer, a second melt-blown fiber web layer, a first composite fiber web layer and a second composite fiber web layer, wherein the first composite fiber web layer is arranged above the air flow fiber web layer, the first melt-blown fiber web layer is arranged above the first composite fiber web layer, the second composite fiber web layer is arranged below the air flow fiber web layer, the second melt-blown fiber web layer is arranged below the second composite fiber web layer, the first composite fiber web layer and the second composite fiber web layer are of a mixed web structure of melt-blown fibers and wood pulp fibers, the air flow fiber web layer is of a wood pulp fiber air flow web structure, the moisture absorption effect is improved by utilizing the double sides of the first composite fiber web layer and the second composite fiber web layer, and the light and thin first melt-blown fiber web layer are not easy to rub and fuze.

Inventors

XU SHIXUE
YANG ZIQIANG
GAN YI
YU YI
YU WENPING

Assignees

逸祥个护家清健康研究(河南)有限公司

Dates

Publication Date: 20260512
Application Date: 20260325
Priority Date: 20260227

Claims (8)

1. The low-fuzzing twin-spun nonwoven material is characterized by comprising an air-flow fiber web layer, a first melt-blown fiber web layer, a second melt-blown fiber web layer, a first composite fiber web layer and a second composite fiber web layer, wherein the first composite fiber web layer is arranged above the air-flow fiber web layer, the first melt-blown fiber web layer is arranged above the first composite fiber web layer, the second composite fiber web layer is arranged below the air-flow fiber web layer, the second melt-blown fiber web layer is arranged below the second composite fiber web layer, the first composite fiber web layer and the second composite fiber web layer adopt a melt-blown fiber and wood pulp fiber mixed web structure, and the air-flow fiber web layer adopts a wood pulp fiber air-flow web structure.
2. The low-fuzzing, twin-spun nonwoven material of claim 1 wherein said first and second meltblown web layers are in a meltblown web structure.
3. The low-fuzzing nonwoven material of claim 1 or 2, wherein the meltblown fibers are one or more of PP fibers, PLA fibers, or PHA fibers.
4. The low-fuzzing, twin-spun nonwoven material of claim 1 wherein said meltblown fibers are polypropylene mixed with hydrophilic masterbatches.
5. The low-fuzzing, twin-spun nonwoven material of claim 4 wherein 50 to 70 parts by weight polypropylene and 1 to 3 parts by weight hydrophilic masterbatch are used in the meltblown fibers.
6. The low-fuzzing, twin-spun nonwoven material of claim 1 wherein the first meltblown web layer has a thickness less than the thickness of the first composite web layer and the second meltblown web layer has a thickness less than the thickness of the second composite web layer.
7. The low-fuzzing, twin-spun nonwoven material of claim 1 wherein the wood pulp fibers and meltblown fibers in the first and second composite web layers have a specific gravity of 1:1.5-2.
8. A method for preparing a low-fuzzing twin-spun nonwoven material, which is used for preparing the low-fuzzing twin-spun nonwoven material according to any one of claims 1 to 7, and is characterized by comprising the following steps: S1, forming a second melt-blown fiber web layer: Feeding the melt-blown fiber raw material into a first screw extruder, heating and melting to about 190-230 ℃ to form a melt, extruding through a first spinneret plate, forming a first melt-blown fiber flow under the drafting action of high-temperature high-speed air flow, and depositing on a net-condensation curtain of a net-forming machine to form a second melt-blown fiber net layer; s2, forming a second composite fiber net layer: feeding the raw materials of the melt-blown fibers into a second screw extruder, heating and melting to about 190-230 ℃ to form a melt, extruding the melt through a second spinneret plate, and forming a second melt-blown fiber flow under the drafting action of high-temperature high-speed air flow; Simultaneously blowing wood pulp fibers into the second melt-blown fiber stream through the air flow conveying device, mixing, and synchronously depositing the wood pulp fibers on the second melt-blown fiber web layer to form a second composite fiber web layer; s3, forming an air fiber net layer: Carding the wood pulp fibers, delivering the wood pulp fibers to an air-laid spray head by using compressed air after the wood pulp fibers are in a single fiber state, and forming an air-laid fiber web layer above the second composite fiber web layer; s4, forming a first composite fiber net layer: Feeding the raw materials of the melt-blown fibers into a third screw extruder, heating and melting to about 190-230 ℃ to form a melt, extruding the melt through a third spinneret plate, and forming a third melt-blown fiber flow under the drafting action of high-temperature high-speed air flow; Blowing wood pulp fibers into the third melt-blown fiber stream through an air conveying device, mixing, and synchronously depositing the wood pulp fibers on the air fiber web layer to form a first composite fiber web layer; S5, forming a first melt-blown fiber web layer: Feeding the melt-blown fiber raw material into a fourth screw extruder, heating and melting to about 190-230 ℃ to form a melt, extruding through a fourth spinneret plate, forming a fourth melt-blown fiber flow under the drafting action of high-temperature high-speed air flow, and depositing on the first composite fiber web layer to form a first melt-blown fiber web layer; S6, hot rolling: Embossing treatment is carried out by using a hot-rolling embossing roller, so that the low-fuzzing cloned-spun non-woven material is obtained.

Description

Low-fuzzing twin-spinning non-woven material and preparation method thereof Technical Field The invention relates to the field of a twin-spun non-woven material, in particular to a low-fuzzing twin-spun non-woven material and a preparation method thereof. Background The twin-spinning non-woven material is produced by a dry process by matching ultra-fine melt-blown fibers with diameters of only 1-5 um, which are produced by a melt-blown process, with wood pulp fibers and other functional fibers. The twin-spinning non-woven material not only contains continuous superfine melt-blown fibers, but also contains discontinuous primary wood pulp fibers, and other auxiliary materials such as other functional fibers, high-molecular water-absorbent resin SAP/SAF and the like can be added according to different application requirements in a certain proportion, so that the twin-spinning non-woven material has excellent use performance, and the diversity of products is enriched. In order to improve the surface hygroscopicity, a structure of mixed spraying of melt-blown fibers and wood pulp fibers can be adopted on the surface of the double-spun non-woven material, so that the content of the wood pulp fibers is increased, but the surface is rough, and the surface is easy to fluff due to stress friction during use, so that the use experience is influenced, and the improvement is needed. Disclosure of Invention The invention mainly solves the technical problem of providing a low-fuzzing non-woven material and a preparation method thereof, and aims to improve the moisture absorption effect and reduce the surface fuzzing. In order to solve the technical problems, the invention adopts a technical scheme that the low-fuzzing-type spun non-woven material comprises an air-flow fiber web layer, a first melt-blown fiber web layer, a second melt-blown fiber web layer, a first composite fiber web layer and a second composite fiber web layer, wherein the first composite fiber web layer is arranged above the air-flow fiber web layer, the first melt-blown fiber web layer is arranged above the first composite fiber web layer, the second composite fiber web layer is arranged below the air-flow fiber web layer, the second melt-blown fiber web layer is arranged below the second composite fiber web layer, the first composite fiber web layer and the second composite fiber web layer adopt a melt-blown fiber and wood pulp fiber mixed web structure, and the air-flow fiber web layer adopts a wood pulp fiber air-flow web structure. In a preferred embodiment of the present invention, the first and second meltblown web layers are in a meltblown web structure. In a preferred embodiment of the present invention, the meltblown fibers are one or more of PP fibers, PLA fibers, or PHA fibers. In a preferred embodiment of the present invention, the meltblown fibers are polypropylene mixed with hydrophilic masterbatch meltblown fibers. In a preferred embodiment of the present invention, 50 to 70 parts by weight of polypropylene and 1 to 3 parts by weight of hydrophilic masterbatch are used in the melt blown fiber. In a preferred embodiment of the present invention, the first meltblown web layer has a thickness less than the thickness of the first composite web layer and the second meltblown web layer has a thickness less than the thickness of the second composite web layer. In a preferred embodiment of the present invention, the specific gravity of the wood pulp fibers and the melt blown fibers in the first composite fiber web layer and the second composite fiber web layer is 1:1.5-2. In order to solve the technical problems, the invention adopts another technical scheme that the preparation method of the low-fuzzing cloned-spun non-woven material comprises the following steps: S1, forming a second melt-blown fiber web layer: Feeding the melt-blown fiber raw material into a first screw extruder, heating and melting to about 190-230 ℃ to form a melt, extruding through a first spinneret plate, forming a first melt-blown fiber flow under the drafting action of high-temperature high-speed air flow, and depositing on a net-condensation curtain of a net-forming machine to form a second melt-blown fiber net layer; s2, forming a second composite fiber net layer: feeding the raw materials of the melt-blown fibers into a second screw extruder, heating and melting to about 190-230 ℃ to form a melt, extruding the melt through a second spinneret plate, and forming a second melt-blown fiber flow under the drafting action of high-temperature high-speed air flow; Simultaneously blowing wood pulp fibers into the second melt-blown fiber stream through the air flow conveying device, mixing, and synchronously depositing the wood pulp fibers on the second melt-blown fiber web layer to form a second composite fiber web layer; s3, forming an air fiber net layer: Carding the wood pulp fibers, delivering the wood pulp fibers to an air-laid spray head by using compressed air after th