Abstract: A method of producing a plastic member of a hair ornament comprises providing first and second plastic materials which are different in material and color. The first plastic material is transparent or translucent. The second plastic material is in the form of a plurality of particles. The first plastic material, the second plastic material, and a bridging agent are mixed and filled into an injection molding machine. The first plastic material melts and envelops the particle-shaped second plastic material. The enveloped particle-shaped second plastic material is outputted to a mold for forming the plastic member of the hair ornament. A hardened product of the plastic member is removed from the mold. The first plastic material forms an outer surface layer of the plastic member. The shape and the color of the second plastic material are directly viewable from an outer side of the product of the plastic member.

Abstract: A hair clip comprises first and second clip pieces, an elastic element, a plurality of first connecting plates pivotably connected to the first and second clip pieces, and a plurality of second connecting plates pivotably connected to the plurality of first connecting plates respectively. The first clip piece includes a first extension positioning groove and a first contraction positioning groove. The second clip piece includes a second extension positioning groove and a second contraction positioning groove. Each of the plurality of second connecting plates includes a third extension positioning groove and a third contraction positioning groove. Each of the plurality of first connecting plates includes a lower positioning member coupled with the first and second extension positioning grooves or the first and second contraction positioning grooves and an upper positioning member coupled with the third extension positioning groove or the third contraction positioning groove.

Abstract: A hairclip comprises two pivotably connected clip bodies each including a pressing portion having a through-hole with a pressing side. Each clip body includes an outer side having a coupling portion which includes a first coupling groove adjacent to the through-hole and a second coupling groove remote to the through-hole. An arcuate elastic element includes extends through the through-holes. Two ends of the elastic element are coupled with the first coupling grooves respectively. When the clip bodies are opened, the pressing sides press against the elastic element and the ends of the elastic element couple with the second coupling grooves. When the clip bodies are closed to an extent where the second coupling grooves are incapable of retaining the ends of the elastic element, the ends of the elastic element automatically disengage from the second coupling grooves and displace to a position for coupling with the first coupling grooves.

Abstract: A biodegradable hair ornament is made of a composite material comprising 50-90 wt % of polylactic acid, 5-40 wt % of a toughener, and 5-30 wt % of a nucleating agent. The toughener is selected from the group consisting of polyethylene terephthalate, thermoplastic elastomer ester resin, polyester polyol resin, vinyl ester resin, and combinations thereof. The nucleating agent is selected from the group consisting of calcium carbonate, talc, silicon dioxide, mica, and combinations thereof.

Abstract: A hair clip includes a lower clip piece having a lower clamping portion, a lower pressing portion, and a lower pivotal portion. An upper clip piece includes an upper clamping portion, an upper pressing portion, and a front pivotal portion. A first elastic coupling device provides a clamping force between the lower and upper clamping portions. A movable clip piece is disposed above the lower clip piece and includes an intermediate pivotal portion and a lower abutting portion behind the intermediate pivotal portion and aligned with the lower clamping portion. The movable clip piece includes a rear abutting portion and a front bent portion bending downwardly and located in front of front ends of the lower and upper clip pieces. A second elastic coupling device abuts the rear abutting portion against an upper side of the upper clip piece when the hair clip does not clamp hair.

Abstract: A hair clip includes a lower clip piece having a lower clamping portion, a lower pressing portion, and a lower pivotal portion. An upper clip piece includes an upper clamping portion, an upper pressing portion, and a front pivotal portion. A first elastic coupling device provides a clamping force between the lower and upper clamping portions. A movable clip piece is disposed above the lower clip piece and includes an intermediate pivotal portion and a lower abutting portion behind the intermediate pivotal portion and aligned with the lower clamping portion. The movable clip piece includes a rear abutting portion and a front bent portion bending downwardly and located in front of front ends of the lower and upper clip pieces. A second elastic coupling device abuts the rear abutting portion against an upper side of the upper clip piece when the hair clip does not clamp hair.

Abstract: A biodegradable hair ornament is made of a composite material comprising 50-90 wt % of polylactic acid, 5-40 wt % of a toughener, and 5-30 wt % of a nucleating agent. The toughener is selected from the group consisting of polyethylene terephthalate, thermoplastic elastomer ester resin, polyester polyol resin, vinyl ester resin, and combinations thereof. The nucleating agent is selected from the group consisting of calcium carbonate, talc, silicon dioxide, mica, and combinations thereof.