Mildew-proof water-blocking yarn

Abstract

The utility model discloses a mould-proof water-blocking yarn which comprises silver ion antibacterial fibers, a super absorbent resin layer, a high-permeability protective layer and a nano-silver particle deposition layer on the surface of the high-permeability protective layer from inside to outside. The nano-silver particles are uniformly distributed in the silver ion antibacterial fiber, and the nano-silver particle deposition layer is arranged on the outer surface of the protective layer, so that the growth of mould is prevented from inside to outside.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of optical cable water-blocking materials, more particularly to a kind of mildew-proof water-blocking yarn. BACKGROUND

[0002] Water-blocking yarn is a kind of mainly using polyester industrial filament and crosslinking polyacrylic acid type expansion material composite, can be widely used in each processing level in optical cable, play the role of bundling, tightening, water-blocking, limit moisture into cable interior. Water-blocking yarn in the prior art lacks mildew-proof effect, is easy to produce mildew in long-term humid environment, thereby affecting the service life of water-blocking yarn. SUMMARY

[0003] The utility model aims at overcoming the defects in the prior art, and provides a kind of mildew-proof water-blocking yarn.

[0004] To achieve the above object, the technical scheme of the utility model is as follows: a kind of mildew-proof water-blocking yarn, characterized by: including silver ion antibacterial fiber, high water-absorbing resin layer, high water-permeable protective layer and the deposition layer of nano silver particles on its surface from inside to outside.

[0005] The silver ion antibacterial fiber is made of aramid, polyester, polypropylene or polyamide as main raw material, and is formed by blending and melt spinning with silver ion antibacterial masterbatch.

[0006] The high water-absorbing resin can be any one of polyacrylamide, polyacrylate, polyacrylic acid salt and modified cellulose.

[0007] The high water-permeable protective layer is polydopamine film.

[0008] The above high water-absorbing resin is adsorbed on the surface of fiber after impregnation and drying solidification of silver ion antibacterial fiber, and then dopamine is oxidized and polymerized to coat the surface of high water-absorbing resin layer. Polydopamine has super adhesion and water permeability, which can effectively prevent water-blocking yarn from powdering and blocking mold during use. Polydopamine has chelation and reduction properties for metal ions, which can reduce silver ions into nano silver and deposit on the surface of polydopamine film.

[0009] Compared with the prior art, the utility model has the beneficial effects that: in the silver ion antibacterial fiber of the utility model, nano silver particles are uniformly distributed, and the outer surface of the protective layer is provided with a deposition layer of nano silver particles, which prevents the growth of mildew from inside to outside. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a longitudinal section structure schematic view of a kind of mildew-proof water-blocking yarn of the utility model embodiment;

[0011] Figure 2 It is a horizontal section structure schematic view of a kind of mildew-proof water-blocking yarn of the utility model embodiment.

[0012] In the figure: 1-silver ion antibacterial fiber; 2-high water-absorbing resin layer; 3-high water-permeable protective layer, 4-nano silver particle deposition layer. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0014] A mildew-proof and water-resistant yarn comprises, from inside to outside, silver ion antibacterial fiber 1, high water-absorbing resin layer 2, high water-permeable protective layer 3 and nano silver particle deposition layer 4.

[0015] The silver ion antibacterial fiber 1 is made of polyester as the main raw material and blended with silver ion antibacterial masterbatch for melt spinning. The high water-absorbing resin 2 is polyacrylate. After the fiber 1 is immersed and dried and solidified, the high water-absorbing resin layer 2 is formed to be adsorbed on the surface of the silver ion antibacterial fiber 1. Then, a solution of dopamine and Tri-Hcl (pH=8.5) with a certain concentration is used to immerse the high water-absorbing resin layer 2, so as to form a polydopamine film high water-permeable protective layer 3. Finally, the silver ion antibacterial fiber 1 is immersed in silver nitrate solution, so that the silver ion is reduced to nano silver and deposited on the surface of the polydopamine film, and the surface also obtains antibacterial property.

Claims

1. A mildew and water resistant yarn, characterized by: From inside to outside, it comprises silver ion antibacterial fiber, high water absorption resin layer, high water permeable protective layer and nano silver particle deposition layer on the surface of the high water permeable protective layer; the high water permeable protective layer is polydopamine film, and the nano silver particle deposition layer is formed on the outer surface of the polydopamine film through chelation and reduction of silver ions.

2. The mildew resistant repellent yarn according to claim 1, wherein: The silver ion antibacterial fiber is made of aramid, polyester, polypropylene or polyamide as main raw material, and is blended with silver ion antibacterial master batch to be melt spun.

3. The mildew resistant repellent yarn according to claim 1, wherein: The high water absorption resin is any one of polyacrylamide, polyacrylate, polyacrylate and modified cellulose.

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