Cellulosic fabric with silk peptide/building block nanopolymer
AssigneeThe Hong Kong Polytechnic University
InventorsYi Li, Lok Yuen Lo, Jun Yan Hu
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Abstract
The present invention relates a method of making a coated cellulosic textile, whereby a silk peptide is polymerized with a building block to develop a silk peptide/building block nanoparticle, said nanoparticle then being used to coat the textile. The resultant textile exhibits a high level of wrinkle recovery angle and/or tear strength, all without the use of N-methylol compounds, including ureas and formaldehydes.
Claims20
A method of making a coated substrate, comprising the steps:
- preparing a silk peptide with a particle size of from 50 to 250 nm by degumming silk fiber, and dissolving the silk fiber in an organic solvent;
- adding said peptide to a treated bath containing a building block polymer having a particle size of from 50 to 500 nm;
- polymerizing said peptide with said building block;
- and
- applying the peptide/building block polymer to a cellulosic substrate,
- wherein the building block is a soft segment that is selected from the group consisting of silicon-oxygen backbone polymers, amino amide derivatives, imidazoline, alkyl aryl sulphonate, thermoplastics, ethylene oxide, aminoethylamine propylsiloxone, and dimethyl siloxone, and
- wherein the ratio of said peptide to said soft segment is from about 4:1 to about 10:1.
A polymer-coated substrate, comprised of a cellulosic fabric and silk peptide/soft segment polymer, wherein said soft segment is selected from the group consisting of silicon-oxygen backbone polymers, amino amide derivatives, imidazoline, alkyl aryl sulphonate, and thermoplastics, wherein said polymer-coated substrate possesses a wrinkle recovery angle between 250-290 (W+F,o), and wherein said polymer-coated substrate does not comprise N-methylol compounds.
A polymer-coated substrate, comprised of a cellulosic fabric and silk peptide/hard segment polymer, wherein said hard segment is selected from the group consisting of polyethers and crystalline entities, wherein said polymer-coated substrate possesses a tear strength of from 4.7 to 7lbs, and wherein said polymer-coated substrate does not comprise N-methylol compounds.
A method of making a coated substrate, comprising the steps:
- preparing a silk peptide with a particle size of from 50 to 250 nm by degumming silk fiber, and dissolving the silk fiber in an organic solvent;
- adding said peptide to a treated bath containing a building block polymer having a particle size of from 50 to 500 nm;
- polymerizing said peptide with said building block;
- and
- applying the peptide/building block polymer to a cellulosic substrate,
- wherein said building block is a hard segment that can be selected from the group consisting of polyethers and crystalline entities, and
- wherein the ratio of said peptide to said hard segment is from about 1:1 to about 10:1.
Dependencies are inferred from the claim text.