Methods, apparatus and kits for modifying natural feathers that are used in sporting goods that result in long lasting feathers with increased mechanical stability, reliability and durability as well as improved flight consistency are disclosed. Some of the sporting goods that use natural feathers are badminton shuttlecocks, arrow fletchings, and darts. The disclosed methods consist of controlled treatment of feather shuttlecocks with crosslinking agents to crosslink the keratin protein present on the natural feathers of the shuttlecock.

Provided are polyketone toothbrush bristles and a toothbrush comprising the same. The toothbrush bristles are made using a polyketone material having high rigidity, high elasticity and excellent wear resistance and thus shows reduced bristle gap-widening and increased service life. The toothbrush bristles obtained by using the polyketone according to the present disclosure have excellent elasticity and are suitable for removal of plaque on the severely indented tooth surfaces. Particularly, in the case of fine bristles, it is possible to remove interdental plaque, which, otherwise cannot be removed well by the conventional toothbrushes.

Provided are polyketone toothbrush bristles and a toothbrush comprising the same. The toothbrush bristles are made using a polyketone material having high rigidity, high elasticity and excellent wear resistance and thus shows reduced bristle gap-widening and increased service life. The toothbrush bristles obtained by using the polyketone according to the present disclosure have excellent elasticity and are suitable for removal of plaque on the severely indented tooth surfaces. Particularly, in the case of fine bristles, it is possible to remove interdental plaque, which, otherwise cannot be removed well by the conventional toothbrushes.

Methods, apparatus and kits for modifying natural feathers that are used in sporting goods that result in long lasting feathers with increased mechanical stability, reliability and durability as well as improved flight consistency is disclosed. Some of the sporting goods that use natural feathers are badminton shuttlecocks, arrow fletchings, and darts. The disclosed methods consist of controlled treatment of feather shuttlecocks with crosslinking agents to crosslink the keratin protein present on the natural feathers of the shuttlecock.

The present invention relates to a waterborne sizing composition for treating natural fibers to be used as reinforcing material in thermoplastic, comprising: (a) a polymeric material having structure (I) wherein, R represents an alkyl group, X represents a reversible covalently bonded crosslinkable group, p, q, and r represent order on a main polymer chain, wherein the total sum of order greater than 50; (b) a water-soluble metal complex having an antimicrobial property; and (c) a redox active water-soluble compound.

The present invention relates to a waterborne sizing composition for treating natural fibers to be used as reinforcing material in thermoplastic, comprising: (a) a polymeric material having structure (I) wherein, R represents an alkyl group, X represents a reversible covalently bonded crosslinkable group, p, q, and r represent order on a main polymer chain, wherein the total sum of order greater than 50; (b) a water-soluble metal complex having an antimicrobial property; and (c) a redox active water-soluble compound.

Methods, apparatus and kits for modifying natural feathers that are used in sporting goods that result in long lasting feathers with increased mechanical stability, reliability and durability as well as improved flight consistency are disclosed. Some of the sporting goods that use natural feathers are badminton shuttlecocks, arrow fletchings, and darts. The disclosed methods consist of controlled treatment of feather shuttlecocks with crosslinking agents to crosslink the keratin protein present on the natural feathers of the shuttlecock.

Composition for the treatment of textile articles comprising graphene and a binder agent dispersed in an aqueous medium, in which the binder agent is a polysaccharide selected from the group consisting of starch, glycogen, chitosan, pectin, salts of alginic acid or alginates, dextran, chitin, and glycans, and textile article treated with said composition.

The present invention relates to a composition for fiber adhesion, and more particularly, a composition for fiber adhesion including titanium dioxide, flame retardants, ultraviolet absorbers and heat stabilizers; and coated yarns, fabrics and articles comprising the composition. The present invention can provide a fiber bonding composition with excellent heat shielding property, light shielding property, ultraviolet and infrared reflection characteristics, weather resistance, heat resistance, heat insulation, durability, etc. In addition, the present invention can provide a coating yarn which can be widely used for blinds, shade film, interior materials, etc. because of excellent thermal shielding property, light shielding property, ultraviolet ray and infrared ray reflection property, weather resistance, heat resistance.

The present invention relates to a composition for fiber adhesion, and more particularly, a composition for fiber adhesion including titanium dioxide, flame retardants, ultraviolet absorbers and heat stabilizers; and coated yarns, fabrics and articles comprising the composition. The present invention can provide a fiber bonding composition with excellent heat shielding property, light shielding property, ultraviolet and infrared reflection characteristics, weather resistance, heat resistance, heat insulation, durability, etc. In addition, the present invention can provide a coating yarn which can be widely used for blinds, shade film, interior materials, etc. because of excellent thermal shielding property, light shielding property, ultraviolet ray and infrared ray reflection property, weather resistance, heat resistance.