Ultraviolet-proof nano-fiber yarn and preparation method thereof

Abstract

The invention discloses an anti-ultraviolet nanofiber yarn and a preparation method thereof. The anti-ultraviolet nanofiber yarn is a nanofiber-wrapped yarn structure, including a core and a skin layer completely and uniformly covering the outer surface of the core. The core is filament yarn or short fiber yarn, the cortex is electrospun nanofiber, and ultraviolet shielding agent or ultraviolet absorber is evenly distributed inside the electrospun nanofiber. The preparation method is a one-time forming method by electrospinning. During the electrostatic spinning, a nanofiber yarn machine is used for one-time forming production process. Under the coupling action of positive and negative electric fields, the surface of the yarn is directly coated with anti-ultraviolet nanofibers. The anti-ultraviolet nanofiber yarn of the present invention can achieve the comprehensive effect of anti-ultraviolet, antibacterial and antibacterial, and hydrophilic and comfortable, has good heat resistance and strong washability, and can be formed in one time during the production process, which can effectively save cost and energy.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to an anti-ultraviolet nanofiber yarn and a preparation method thereof. Background technique [0002] At present, there are mainly two methods for anti-ultraviolet textiles developed at home and abroad: one is to add an anti-ultraviolet shielding agent in fiber production, and the fabric produced by using this type of fiber has a permanent anti-ultraviolet function; but this method has high processing costs. The processing route is long, the technical requirements are high, and the anti-ultraviolet shielding agent can only be added to chemical fibers, which is not suitable for natural fiber fabrics. The second method is to use an anti-ultraviolet shielding agent to coat the surface of the textile. This method is simple and easy to implement, but the product has poor washing resistance, and the comfort and feel of the fabric have been greatly affected. Therefore, Neither of these...

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Problems solved by technology

[0002] At present, there are mainly two methods for anti-ultraviolet textiles developed at home and abroad: one is to add an anti-ultraviolet shielding agent in fiber production, and the fabric produced by using this type of fiber has a permanent anti-ultraviolet function; but this method has high processing costs. The processing route is long, the technical requirements are high, and only anti-ultraviolet shielding agents can be added to chemical fibers, which is not suitable for natural fiber fabrics

The second method is to use an anti-ultraviolet shielding agent to coat the surface of the textile. This method is simple and easy to implement, but the product has poor washing resistance, and the comfort and feel of the fabric have been greatly affected. Therefore, Neither approach is a good way to develop UV-resistant textiles

Nowadays, some functional yarns or fabrics can be developed using nano-coating technology, but nanofibers are only retained on the surface of yarns and fabrics, and are easily worn out during processing and use, and lose their functionality.

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