Bio-based degradable knitted fabric with antibacterial effect

Patent metadata

Field	Value
Publication number	US-10577726-B2
Application number	US-201715643531-A
Country	US
Kind code	B2
Filing date	Jul 7, 2017
Priority date	Jul 8, 2016
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

A biodegradable antibacterial knitted fabric, a cross section of the knitted fabric includes a front side of cross section made of wool short fiber yarns, an intermediate connection layer of cross section capable of transferring moisture and a rear side of cross section made of antibacterial filaments; the intermediate connection layer of cross section is made of filament yarns having a special shape capable of being inserted into the front side of cross section and the rear side of cross section so that the front side of cross section is connected with the rear side of cross section. The biodegradable antibacterial knitted fabric proposed by the present application has a long time significant antibacterial effect by adopting a cross section structure with three layers and antibacterial material, and does not contain any antimicrobials and metal ions, and has the advantages of low cost, easy manufacturing and long lasting antibacterial effect.

First claim

The invention claimed is:

1. A biodegradable knitted fabric, wherein, a cross section ( 100 ) includes a front side of cross section ( 101 ) made of wool staple fiber yarns, an intermediate connection layer of cross section ( 102 ) capable of transferring moisture and a rear side of cross section ( 103 ) made of antibacterial filaments; the intermediate connection layer of cross section ( 102 ) is made of filament yarns having a clover structure capable of being inserted into the front side of cross section ( 101 ) and the rear side of cross section ( 103 ) so that the front side of cross section ( 101 ) is connected with the rear side of cross section ( 103 ) forming a double-sided fabric with different yarn and effect on each side.

2. The biodegradable knitted fabric according to claim 1 , wherein, the biodegradable knitted fabric adopts a compound knitting structure with six rows ( 200 ).

3. The biodegradable knitted fabric according to claim 2 , wherein, a first row ( 201 ) and a fourth row ( 204 ) of the compound knitting structure with six rows ( 200 ) consist of the front side of cross section ( 101 ), a second row ( 202 ) and a fifth row ( 205 ) consist of the rear side of cross section ( 103 ), and a third row ( 203 ) and a sixth row ( 206 ) consist of the intermediate connection layer of cross section ( 102 ).

4. The biodegradable knitted fabric according to claim 1 , wherein, the front side of cross section ( 101 ) forms an outside of a knitted clothing; the rear side of cross section ( 103 ) forms an inside of the knitted clothing; the intermediate connection layer of cross section ( 102 ) forms a middle part of the knitted clothing; the intermediate connection layer of cross section ( 102 ) is configured to connect the outside and the inside of the knitted clothing and transfer the moisture.

5. The biodegradable knitted fabric according to claim 1 , wherein, the filament yarns are made of a copolymer of antibacterial functional polylactic acid and poly 3-hydroxybutyrate-co-3-hydroxyvalerate; the antibacterial filaments are made of a copolymer of antibacterial functional polylactic acid and poly 3-hydroxybutyrate-co-3-hydroxyvalerate.

6. The biodegradable knitted fabric according to claim 1 , wherein, in the biodegradable knitted fabric, a bactericidal rate of white Candida albicans (CA) is more than 99% and a bactericidal rate of Staphylococcus aureus (SA) and Streptococcus pyogenes (SP) is more than 99.97.

Assignees

• Hong Kong Res Inst Textiles & Apparel Ltd

Inventors

• Tao Xiaoming
• Liu Shirui
• Liang Lijuan
• Huang Xinxin

Classifications

• D01F6/84 Primary

  from copolyesters · CPC title

• D10B2403/02

  Cross-sectional features (for three-dimensional features D10B2403/033) · CPC title

• D04B21/16

  incorporating synthetic threads · CPC title

• D01F6/625

  derived from hydroxy-carboxylic acids, e.g. lactones · CPC title

• D10B2401/13

  anti-allergenic or anti-bacterial · CPC title