Composition for promoting biodegradation of fabric and post-processing method for promoting biodegradation of fabric using the same
AssigneeOne Eight inc.,
InventorsYoung Hoon SEO, Yong Lae KIM
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Abstract
The present application relates to a composition for promoting biodegradation, including a tungsten oxide-based nanomaterial and an organic acid, a method for preparing the same, and a fabric post-processing method using a biodegradation-promoting material. Fabric post-processing using the composition for promoting biodegradation of the present invention creates an environment in which hydrolysis of polymer fabrics may occur, thereby promoting biodegradation while maintaining physical properties of the fabric, such as strength.
Claims15
A composition for promoting biodegradation of yarn or fabric, comprising 2% to 15% by weight of a tungsten oxide-based nanomaterial, 2% to 20% by weight of an organic acid, and the remaining weight percent of water, based on the total weight of the composition,
- wherein the tungsten oxide-based nanomaterial is one or more tungsten oxide-based materials selected from the group consisting of cesium-tungsten-oxide (CTO), antimony-tungsten-oxide (ATO), tungsten trioxide (WO3), tungsten-copper oxide (CuWO4), tungsten-arsenic oxide (As2WO4), tungsten-iron oxide (Fe2WO6), tungsten-calcium oxide (CaWO4), and tungsten-magnesium oxide (MgWO4), having an average particle size of 30 nm to 70 nm, and
- the organic acid is one or more selected from the group consisting of glutaric acid, succinic acid, acetic acid, citric acid, formic acid, phthalic acid, malic acid, tartaric acid, oxalic acid, benzoic acid, and fumaric acid.
A method for preparing a composition for promoting biodegradation of yarn or fabric, comprising steps of:
- processing a tungsten oxide-based nanomaterial to an average particle size of 10 nm to 100 nm;
- mixing 2% to 15% by weight of the tungsten oxide-based nanomaterial, 2% to 20% by weight of an organic acid, and the remaining weight percent of water, based on the total weight of the composition;
- and
- homogenizing the mixed mixture.
A fabric post-processing method for promoting biodegradation through hydrolysis of the fabric, comprising steps of:
- (a) preparing a fabric manufactured using a polymer fabric or knitted fabric;
- (b) treating the fabric with a composition for promoting biodegradation including a tungsten oxide-based nanomaterial, an organic acid, and a binder;
- and
- (c) heat-treating the fabric treated with the composition for promoting biodegradation to fix the composition for promoting biodegradation,
- wherein the composition for promoting biodegradation includes 2% to 15% by weight of a tungsten oxide-based nanomaterial, 2% to 20% by weight of an organic acid, and the remaining weight percent of water, based on the total weight of the composition for promoting biodegradation,
- the tungsten oxide-based nanomaterial is one or more tungsten oxide-based materials selected from the group consisting of cesium-tungsten-oxide (CTO), antimony-tungsten-oxide (ATO), tungsten trioxide (WO3), tungsten-copper oxide (CuWO4), tungsten-arsenic oxide (As2WO4), tungsten-iron oxide (Fe2WO6), tungsten-calcium oxide (CaWO4), and tungsten-magnesium oxide (MgWO4), having an average particle size of 30 nm to 70 nm, and
- the organic acid is one or more selected from the group consisting of glutaric acid, succinic acid, acetic acid, citric acid, formic acid, phthalic acid, malic acid, tartaric acid, oxalic acid, benzoic acid, and fumaric acid.
Dependencies are inferred from the claim text.