TWI397389B - Plastic hair clip - Google Patents

Description

Plastic hair clip

The invention relates to a plastic hair clip, in particular to a plastic hair clip which is opened and closed by the elasticity of the plastic body. The plastic hair clip is mainly composed of CHDM (1,4-cyclohexanedimethanol) 55%, ethylene glycol. (Ethylene Glycol, EG) 30%, PTA (pure terephthalic acid) 10%, optical brightener (1%), and selected from PP (Polypropylene) or K-gel (K-Resin) 4% .

Generally, the hair is made up of hair clips, headbands, hairpins or other utensils suitable for shaping and tidying hair. Since the hairpin is in the bundled hair, the clamp must have considerable bending resistance, so that most of the industry will rely on metal springs, etc., and the material is mainly selected by using metal with better rigidity and recovery elasticity. However, due to the aesthetics, the clip made of such metal often has to be decorated with various decorative pieces of plastic material to increase the color, texture and texture of the metal.

Due to the high fluctuation of international raw materials, the production cost is greatly increased. When the metal with the plastic decorative piece is discarded, it is not easy to be recycled by simple metal. It is often necessary to retrieve the metal through solvent, combustion, etc. The plastic decorations are prone to environmental hazards such as toxicity, and the clips made of such metals are complicated in the process of attaching the plastic decorative sheets, and the metal parts are prone to rust, especially in contact with the moisture environment of the bath. A chance to get wet and often get wet and rust more.

Prior art in plastic materials, although some operators try to use a single plastic raw material such as ABS resin (C Acrylic-styrene-butadiene copolymer), polycarbonate (Polycarbonate, PC for short) or made of acrylic (polymethylmethacrylate), but this material cannot be ductile at the same time. , plasticity and toughness, which makes it easy to break, white, and aging.

The invention relates to a plastic hair clip, in particular to a plastic hair clip which is opened and closed by the elasticity of the plastic body. In view of the problems of the prior art and the problems caused by environmental pollution, the present inventors have thought of a better material, in addition to the advantages of being sufficiently flexible and easy to construct, and eliminating the defects of various plastics such as white folding and easy fracture. In addition to the strength of the hairpin, it can avoid the environmental, rust and resource recycling classification of the aforementioned metals.

In order to achieve the foregoing objectives, the technical means adopted by the present invention mainly design a plastic hair clip which contains 55% of CHDM (1,4-cyclohexanedimethanol) and ethylene glycol (Ethylene Glycol, EG). 30%, PTA (pure terephthalic acid) 10%, whitening agent (Optical Brightener) 1%, selected from the group of PP (Polypropylene), K-gel (K-Resin) 4%, and each component allows It has a space of 5% tolerance in this proportion in proportion to its total. The above-mentioned components and ratios are mainly produced by the combination of the components and the materials by empirically searching for the empirical values sought.

(1)‧‧‧Plastic hairpins

(11)‧‧‧ Cover

(12) ‧ ‧ pedestal

(110) (120) ‧ ‧ first end

(111)‧‧‧Clamping Department

(112) (122) ‧ ‧ second end

(114)‧‧‧Pressing tablets

(121) ‧‧‧Clamping and fixing section

(13)‧‧‧ shaft tip

(15) ‧‧‧Open end

(3)‧‧‧Plastic hairpins

(31) ‧ ‧ pedestal

(32)‧‧‧ Cover

(33) ‧‧‧Open end

(34) ‧‧‧Connected end

(4) ‧‧‧ hair bundles

(6)‧‧‧Plastic hairpins

(60) ‧‧‧ pivot end

(61)‧‧‧ Cover

(611)‧‧‧Clamping and stopping

(62) ‧ ‧ pedestal

(621) ‧‧‧Clamping Department

(69) ‧‧‧Open end

(7)‧‧‧Plastic hairpins

(70) ‧‧‧ pivot end

(71)‧‧‧ Cover

(711)‧‧‧Clamping and stopping

(72) ‧ ‧ pedestal

(721)‧‧‧Clamping Department

(79) ‧ ‧ open end

The first figure is a schematic diagram of the molding process of the plastic hair clip of the present invention.

The second figure is a three-dimensional schematic view of the plastic hair clip of the present invention.

The third figure is a schematic plan view of the hairpin/hair group of the plastic hair clip of the present invention.

The fourth figure is a three-dimensional schematic view of the plastic hair clip of the present invention when closed, and shows a schematic diagram of using a pressing piece to open the plastic hair clip.

The fifth figure is another plastic hair clip which is integrally formed by the invention, and the hair clip has an open end and a connection end.

Fig. 6 is a plan view showing the plastic hair clip of the fifth figure accommodating the hair bundle/hair group.

Figure 7 is a view showing an embodiment of another plastic hair clip according to the present invention. The hair clip has a pivot end and an open end, and at the open end, a clamping stopper and a clamping portion are displayed.

Fig. 8 is a schematic view showing the bending deformation of the seventh figure at the use stage.

Fig. 9 is a view showing an embodiment of a plastic hair clip of the present invention, the hair clip having a pivot end and an open end, and at the open end, a clamping stopper and a clamping portion are displayed.

The contents, features and embodiments of the present invention will be described below with the aid of the drawings, so that the reviewing committee has a better understanding.

Referring to the first figure, the present invention relates to a plastic hair clip which is used in the process of material testing and implementation of a plurality of times. The inventors of the present invention: containing CHDM (1,4-cyclohexanedimethanol) 55%, Ethylene Glycol (EG) 30%, PTA (pure terephthalic acid) 10%, Optical Brightener (1%), selected from PP (Polypropylene), K-gel (K- Resin) group 4%, and each component allows it to form a polymerized plastic in a material with a tolerance of 5% of the total amount of its own, and then inject into a plastic hairpin molding die, borrowing Such a plastic hair clip can be produced by injection molding.

The material design of the invention, wherein the CHDM (1,4-cyclohexanedimethanol) is obtained by hydrogenation of dimethyl terephthalate, and is mainly used for chemical modification in terms of material properties. PET, amorphous material (PETGPCTG), engineering plastics and adhesives. Ethylene Glycol (EG) has a thick slurry and has a preferred boiling point (197.37 ° C). As for PTA (pure terephthalic acid), PX (p-xylene) is converted by a catalyst and oxidized by using acetic acid as a solvent at a high temperature and a suitable pressure. However, in order to obtain the whitening property, the present invention appropriately adds an optical brightener (1%): and adds PP or K. gum.

The K-Resin is itself a transparent styrene-butadiene copolymer. PP (Polypropylene) is light and good processability. Via CHDM (1,4-cyclohexanedimethanol), ethylene glycol (Ethylene Glycol, EG), PTA (pure terephthalic acid), brightener (Optical Brightener), PP (Polypropylene) or K-gel (K- Resin) and the like constitute a polymerized plastic, and the polymerized plastic is molded and injected through a hairpin mold, thereby completing the plastic hairpin of the present invention having ductility, plasticity, toughness and no whitening phenomenon, and allowing the plastic to be plasticized. The hair clip has a bright white beauty effect and environmental benefits.

The plastic hair clip of the present invention basically has an open end and a pivot end on the hair clip composed of the base and the cover. The open end is used as a set hair bundle, and the open end can be designed to be mutually buckled. The structure, and the pivot end can be combined with the base and the cover by the shaft end, or the connecting end formed by integrally forming the pivot end by the base and the cover. Referring to the second embodiment, the figure is a first embodiment of the present invention, a plastic hair clip (1) composed of the above materials, comprising a cover (11) and a base (12), a cover The first end (110) of the seat (11) and the first end (120) of the base (12) are pivotally connected by a shaft end (13) to form a pivot end, and the shaft end (13) is also a plastic Material instead of metal. The second end (112) of the cover (11) is provided with a clamping portion (111), and the second end (122) of the base (12) is provided with a card engaging with the aforementioned clamping portion (111). The buckle clamping portion (121) generally has a second end (112) (122) forming an open end (15) of the hairpin, and the first end (110) (120) is coupled to the shaft end (13) ) forming a pivot end, the hair bundle (4) (ie, the hair strand) can be placed between the cover (11) and the base (12) by the open end (15), and the second end of the hairpin (112) (122) The clip-engaging portion (111) and the clip-and-hold portion (121) are snap-fastened, and the hair clip can be used to sort out the hair bundle (4) (as shown in the third figure) Since the cover seat (11) and the base (12) tend to be bent and deformed due to the tension of the package hair bundle, the present invention allows the cover seat (11) and the base (12) due to the combination materials and the combination ratio thereof. ) does not cause whitening or cracking when bending and deforming Health. On the other hand, the hairpin is in a position with a force or a bearing force, such as a clip cooperation portion (111) and a clip fixing portion (121) which are often used for snapping, or a finger pressing when the hair clip is to be opened. The pressing piece (114) (as shown by the arrow in the fourth figure) does not cause whitening or cracking, and the entire hairpin can be said to be practical.

Please refer to the fifth and sixth figures, which are another embodiment of the present invention. The plastic hair clip (3) is integrally formed, and still has a base (31), a cover (32), and a base (31). An open end (33) formed by the cover (32) for allowing the hair bundle (4) to be received, and a connecting end (34) slightly similar to the pivot end formed by the shaft tip (13) of the first embodiment. When the hair strands are arranged, the hair bundle (4) can be received between the base (31) and the cover seat (32) by the open end (33), as shown in the sixth figure, at which time the entire hair clip includes the cover seat ( 32), the base (31) and the connecting end (34) all have a spring tension, especially when the tension of the joint end (34) is greater, but the hair clip of the present invention does not fold. White phenomenon or the production of cracks.

The plastic hair clip of the invention can be presented in different shapes, and only the plastic hair clip still has an open end (69) and a pivot end (60). Please refer to the seventh and eighth figures. The plastic hairpin (6) is still provided with a clamping stop (611) and a clip at the open end (69) where the cover (61) and the base (62) can form an opening and closing action. Cooperation Department (621). The cover seat (61) and the base (62) are arranged for receiving the hair. When the amount of hair is increased, the base (62) and the cover (61) are outwardly curved. Such bending deformation does not cause the plastic hair clip of the present invention to cause whitening on the plastic body of the base (62) and the cover (61), or cause a defect such as breakage. To open the plastic hair clip (6), just use the fingers of both hands to press under the two ends of the cover (61), and then apply pressure from the upper surface of the cover (61) to open the hairpin easily. The above action will still cause the upper surface of the cover (61) and the base (62) to be frequently swayed in the middle, and the whitening phenomenon is still easily generated on the conventional plastic hairpin product. The material combination design has strong bending resistance and no folding or breaking phenomenon. The utility of the plastic hair clip (6) of the invention is superior to the conventional plastic hair clip.

Similarly, please refer to the ninth figure, only the plastic hairpin still has an open end (79) and a pivot end (70) The plastic hair clip (7) is provided with a clamping stopper (711) and a clamping portion (79) at the opening end (79) where the cover (71) and the base (72) can form an opening and closing action ( 721). The cover seat (71) and the base (72) are provided for receiving the hair. When the hair is more, the base (72) and the cover (71) are outwardly curved. Such bending deformation does not cause the plastic hair clip of the present invention to cause whitening on the plastic body of the base (72) or the cover (71), or cause a defect such as breakage.

The plastic hair clip of the invention uses the combination of the foregoing materials and proportions, so that it has the advantages of sufficient elasticity, easy construction and manufacture, and is free from the above-mentioned various plastics, such as white folding, easy breakage and aging. At the same time, it has considerable strength, and can avoid the troubles of environmental protection, rust and resource recycling of the aforementioned metals.

Claims (9)

A plastic hair clip, the composition of the plastic hair clip comprises: CHDM (1,4-cyclohexanedimethanol): 55%; ethylene glycol (Ethylene Glycol, EG): 30%; PTA (pure terephthalic acid) ): 10%; Optical Brightener: 1%; K-Resin: 4%; plastic hair clips made by the above ingredients and ratios prevent the plastic body of the hairpin from being creased Or a crack. For example, the plastic hair clip of the first application of the patent scope, wherein each component allows it to have a ratio of 5% of tolerance to the proportion of its own. The plastic hair clip of claim 1, wherein the K-Resin is replaced by PP (Polypropylene). The utility model relates to a plastic hair clip, which is composed of a base and a cover seat. One end of the base and the cover seat can form an open end, and the other end can form a pivot end, and the opening formed in the base and the cover seat The hair shaft/hair strand group can be accommodated between the end and the pivot end. The base and the cover base are made of CHDM (1,4-cyclohexanedimethanol), ethylene glycol (Ethylene Glycol, EG), PTA (pure Terephthalic acid), optical brightener (K-Resin) composition. The plastic hair clip of claim 4, wherein the ratio of the foregoing components is: CHDM (1,4-cyclohexanedimethanol): 55%; ethylene glycol (Ethylene Glycol, EG): 30 %; PTA (pure terephthalic acid): 10%; Optical Brightener: 1%; K-Resin: 4%. For example, the plastic hair clips mentioned in claim 5, wherein each component allows it to have a space of 5% tolerance in proportion to the total amount of its own. The plastic hair clip of claim 4, wherein the K-Resin is replaced by PP (Polypropylene). The plastic hair clip of claim 4, wherein the open end of the hairpin can form a clamping portion at one end of the base and the one end of the cover can be clamped to each other. , by CHDM (1,4-cyclohexanedimethanol), ethylene glycol (Ethylene Glycol, EG), PTA (pure terephthalic acid), brightener (Optical Brightener), K- (K-Resin) The plastic hair clips composed of the components, the cover seat, the base, the clamp fixing portion and the clip cooperation portion are not subjected to whitening or cracking due to expansion deformation during use. The plastic hair clip of claim 4 or 8, wherein the pivot end of the cover and the base can be formed by an integral forming method to replace the pivot end. The combination of the above components allows the base, the cover and the engaging end to be free from whitening or cracking due to expansion deformation during use.