Reinforcement structure body of the hair implantation of the plush figure and plush figure with this

Abstract

Reinforcing structure body of the hair implantation of the plush figure, characterized in that it comprises a physical reinforcing body formed from flexible material; wherein the reinforcement body has a fitting surface adapted to the contour of the inner wall of a hair implantation area in which it is located; wherein the reinforcement body has a spatial configuration either as a two-dimensional continuous plate or as a three-dimensional spatial insert.

Description

TECHNICAL AREA

[0001] The present invention relates to the technical field of toy manufacturing, in particular a reinforcing structural body for the hair implantation of the plush figure and a plush figure with this. STATE OF THE ART

[0002] Current methods for attaching wigs to game pieces have the following technical limitations: 1. Method for hair implantation in rotationally molded toy figures: Use of a hair implantation machine to embed strands of hair in rotationally molded material (e.g. Barbie dolls), using the mechanical bonding force of rotational molding to anchor the lower thread; 2. Method for attaching wigs: Gluing an entire wig to the surface of a game character's head.

[0003] However, the above-mentioned methods cannot be applied to plush toys, primarily for the following reasons: 1. The main body of plush figures consists of sewn textile fabric filled with cotton wadding and does not have sufficient resistance to deformation, 2. The crochet hook of the hair implantation machines cannot effectively grip the bobbin thread on thin layers of fabric (measured bobbin thread slippage rate > 90%); 3. This results in a wig removal force of ≤ 5 N, which is far below the toy safety standard (ASTM F963 requires ≥ 15 N); 4. It is not possible to achieve high-density hair implantation on curved surfaces or other complicated designs, which severely limits product development.

[0004] To solve these problems, research and development work is therefore being carried out for a reinforcement structure body for the hair implantation of the plush figure and a plush figure with this. CONTENT OF THE PRESENT INVENTION

[0005] To solve the above technical problems, the present invention uses the following technical solution: a reinforcing structural body of the hair implantation of the plush figure, characterized by, that it includes a physical reinforcing body made of flexible material by rotational molding, injection molding, drop molding or compression molding processes; wherein the reinforcement body has a fitting surface adapted to the contour of the inner wall of a hair implantation area in which it is located; wherein the reinforcement body has a spatial configuration either as a two-dimensional continuous plate or as a three-dimensional spatial insert; where, if the reinforcing body is a two-dimensional continuous plate: the deviation in the uniformity of the thickness of the reinforcement body is <±10% and the thickness is in a range of 0.5 mm to 6 mm; the surface roughness Ra of the reinforcing body is ≤12.5 µm; the edges of the reinforcement body extend to the outside of the boundaries of the hair implantation area; where the reinforcement body is a three-dimensional spatial insert: the reinforcement body comprises a topological structure with a curved surface; the reinforcement body covers ≥50% of the inner surface of the hair implantation area; the thickness of the reinforcement body is in a range of 0.5 mm to 6 mm; the thickness variation rate of the reinforcement body is ≤ 30%.

[0006] Preferably, the flexible material of the reinforcement body comprises at least one of the following materials: PVC, TPU, TPE, rubber, silicone or their composite materials; Preferably, the Shore hardness of the reinforcement body is 15A to 70A.

[0007] A plush figure comprising a plush figure body sewn from textile fabric and a filling material, wherein a reinforcement structure body referred to above is attached to the inside of the hair implantation area of ​​the plush figure body; and wherein a continuous boundary layer is formed between the mating surface of the reinforcement structure body and the inner wall of the plush figure body.

[0008] Preferably, the coverage rate of the continuous boundary layer is ≥ 90%.

[0009] Preferably, the continuous boundary layer is a hot melt adhesive layer, a silicone layer, a polyurethane adhesive layer, or a trace of the sewing thread.

[0010] Preferably, if the reinforcement body is a three-dimensional spatial insert, a buffer air gap layer is arranged between the inner surface of the reinforcement structure body and the filling material.

[0011] Preferably the air gap thickness of the buffer air gap layer is 0.2 to 1 mm, with an air gap connectivity rate ≥ 60%.

[0012] Compared to the prior art, the present invention has the following advantages: 1. The reinforcement structure provides rigid support for the tissue in the hair implantation area and increases the anchoring strength of the sutures; 2. Full-surface coverage avoids local stress concentrations; 3. Simplified production processes, compatibility with existing hair implantation devices and low retrofit costs; 4. Addresses the problem of wigs being easily pulled off due to the lightweight fabric of the plush figure body, in order to improve the wig's resistance to pull-off and the binding ability of the underthread; 5. enables high-density hair implantation while simultaneously reducing density deviation rates on curved surfaces. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 shows a schematic diagram of the thread solution in conventional tissue-based hair implantation; Fig. Figure 2 shows a structural view when the reinforcing body in the present invention is a two-dimensional continuous plate; Fig. Figure 3 shows a structural view when the reinforcement body in the present invention is a three-dimensional spatial insert; Fig. Figure 4 shows a structural view of the reinforcement structure body in the present invention when it is a thin film and is connected to the hair implantation area via an adhesive layer; Fig. Figure 5 shows a structural view of the reinforcement structure body in the present invention when it is a thin film and is connected to the hair implantation area via a sewing thread; Fig. Figure 6 shows a first schematic diagram of the three-dimensional structure of a reinforcement structure body applied to the head of a plush figure; Fig. Figure 7 shows a second schematic diagram of the three-dimensional structure of a reinforcement structure body applied to the head of a plush figure. Reference symbol list 10 reinforcement bodies 20 plush figure bodies 30 Filling material 40 Continuous boundary layer 201 Hair implantation area 401 sewing thread DETAILED DESCRIPTION

[0013] To facilitate understanding of the present invention, it is explained in more detail below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to enhance the understanding of the present invention.

[0014] It should be noted that when an element is described as being "attached" to another element, the element may be located directly on top of the other element, or there may be another element intervening. Similarly, when an element is described as being "connected" to another element, the element may be directly connected to the other element, or there may be an intervening element. Terms used in the description, such as "vertical," "horizontal," "left," "right," "above," "below," "front," "back," and similar phrases, are used only to clarify the objective.

[0015] Unless otherwise stated, all technical and scientific terms used in the description have the same meanings as they are commonly understood by a person skilled in the art in the field of the present invention. The terms used in the description of the present invention serve only to explain the specific embodiments, rather than to limit the present invention. The terms "and / or" used in the description include any and all combinations of one or more associated listed elements.

[0016] The present invention is explained in more detail below in connection with the accompanying drawings and specific embodiments.

[0017] As in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. Figure 7 shows a reinforcement structure body for the hair implantation of the plush figure, comprising a physical reinforcement body 10 made of flexible material by rotational molding, injection molding, or compression molding processes; wherein the reinforcement body 10 has a fitting surface adapted to the contour of the inner wall of a hair implantation area 201 in which it is located; wherein the reinforcement body 10 has a spatial configuration either as a two-dimensional continuous plate or as a three-dimensional spatial insert; and wherein the deviation in the uniformity of the thickness of the two-dimensional continuous plate is ≤±10% and the thickness is in a range of 0.5 mm to 6 mm, and wherein the surface roughness Ra≤12.5µm; and wherein the edges of the two-dimensional continuous plate extend to the outside of the boundaries of the hair implantation area 201; and wherein the three-dimensional spatial insertion comprises a topological structure with a curved surface, and wherein it covers ≥50% of the inner surface of the hair implantation area 201 covers, the thickness is in a range of 0.5 mm to 6 mm and the thickness variation rate is ≤30%.

[0018] In the present embodiment, the thickness of the reinforcing body 10 is determined according to the requirements of different application locations, joining methods, and forming processes; the thickness of the reinforcing body 10 ranges from 0.5 mm to 6 mm. During actual production, the thickness of the reinforcing body 10 increases in accordance with the increasing tensile strength requirement.

[0019] In the present embodiment, the topological design of the three-dimensional spatial insert allows for a maximum thickness of 6 mm to support deep hair implantation with long needles and prevent local collapse. Furthermore, the minimum coverage rate of 50% effectively reduces material consumption.

[0020] In the present embodiment, the surface roughness Ra of the two-dimensional continuous plate is ≤ 12.5 µm, resulting in an adhesive peel strength of 18 N / cm and improved peel strength. Furthermore, the thickness uniformity deviation is ≤ ± 10%, which improves the stability of the hair graft density.

[0021] Furthermore, the three-dimensional spatial application includes a reinforcing rib grid and / or a micro-recess arrangement; wherein the rib height of the reinforcing grid is 0.3-1 mm; and wherein the depth of the depressions of the micro-depression arrangement is 0.1-0.5 mm.

[0022] In the present embodiment, the rib height of the reinforcing rib grid prevents further tearing of the fabric and thus improves puncture resistance; the depth of the recesses of the micro-recess arrangement increases the adhesive contact area by 150% and thus improves the interface strength.

[0023] Furthermore, as in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. Figure 7 shows that the material of the reinforcement body 10 is determined according to the requirements of different application locations, different joining methods and different forming processes; wherein the material of the reinforcement body 10 comprises at least one of the following materials: PVC, TPU, TPE, rubber, silicone or their composite materials.

[0024] Furthermore, as in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. Figure 7 shows the Shore hardness of the reinforcing body 10 determined according to the requirements of different application locations, different joining methods and different forming processes; wherein the Shore hardness of the reinforcing body 10 is 15A to 70A.

[0025] In the present embodiment, the processed reinforcement body 10 is arranged on the inner fabric of the hair implantation area 201 of the plush figure body 20; the reinforcement body 10 is then attached with hot melt adhesive or sewing threads; subsequently, an automated hair implantation machine is used to insert the wig, the implantation thread being guided through the plush figure fabric to securely hook onto the reinforcement body 10 or to obtain a stable hold from it. Compared to conventional direct wig implantation methods, the firm anchoring of the implantation thread to the reinforcement body 10 solves the problem of wigs being easily pulled off due to the lightweight fabric of the plush figure body 20.

[0026] In this embodiment, the reinforcing body 10 is completely glued or sewn to the inner wall of the toy.

[0027] A method for manufacturing the aforementioned reinforcement structure body: for a two-dimensional continuous plate: S1. Production of sheet material by injection molding, compression molding, rotational molding, drip molding, calendering, cast film extrusion or blown film processes; S2. Cutting the plate material according to the projected contour of the hair implantation area 201; for three-dimensional spatial applications: S1. Design a shape based on the three-dimensional data of the inner wall of the hair implantation area 201; S2. One-piece forming by injection molding / compression molding / rotational molding / drip molding into the mold; Common steps: Attaching the molded part to the inner wall of the plush figure using an adhesive layer or sewing thread 401.

[0028] Furthermore, laser cutting or waterjet cutting with a cutting accuracy of ≤0.2 mm is used.

[0029] A plush figure comprising a plush figure body 20 sewn from textile fabric and a filling material 30, characterized by, that a reinforcement structure body mentioned above is attached to the inside of the hair implantation area 201 of the plush figure body 20; and wherein a continuous boundary layer 40 is formed between the mating surface of the reinforcement structure body and the inner wall of the toy. and where the coverage rate of the continuous boundary layer 40 ≥ 90%.

[0030] Furthermore, the continuous boundary layer 40 is a hot melt adhesive layer, a silicone layer, a polyurethane adhesive layer or a trace of the sewing thread 401.

[0031] Furthermore, if the reinforcement body is a three-dimensional spatial insert, a buffer air gap layer (not shown) is arranged between the inner surface of the reinforcement structure body and the filling material 30; wherein the air gap thickness of the buffer air gap layer is 0.2 to 1 mm; and wherein the air gap connectivity rate is ≥ 60%.

[0032] In the present embodiment, the arrangement of the buffer air gap layer can absorb the extraction energy of the hair implantation and reduce the peak stress by 30%; furthermore, it can prevent the filling material 70 from directly compressing the three-dimensional spatial insert and thereby causing deformation.

[0033] In the present embodiment, the coverage rate of the continuous boundary layer 40 ≥ 90%, thereby upgrading the reinforcement body from a “localized reinforcement component” to a “global supporting structure”, which solves the problem of the impossibility of industrial hair implantation in plush figures.

[0034] A hair implantation procedure for highly realistic plush figures, including: Arranging the aforementioned reinforcement structure body at the hair implantation area 201 on the inner wall of the plush figure; Using a hair implantation machine (not shown) to pierce the fabric and the reinforcement body 10, thereby forming a secure hair implantation knot with the underthread of the sewing thread 401 inside the reinforcement body 10; where the hair implantation density is ≥ 80 tufts / cm² 2 and the pulling force for a single tuft is ≥ 15 N.

[0035] Exemplary embodiment 1 (integrated forming of the head reinforcement body 10 by injection molding according to the product design requirements), as shown in Fig. 2 and Fig. 4 shown: Process: using TPU granules (80A), TPE or PVC materials, a head reinforcement body 10 with a thickness of 1.5 mm is produced by injection molding, the shape of which is fully adapted to the curved inner surface of the head of the plush figure. Attachment: PUR hot melt adhesive (50) is applied evenly to the back of the head reinforcement body 10, which is then pressed into the head of the plush figure and attached, achieving a coverage rate of 98%; Hair implantation: the needle of the hair implantation machine successively penetrates the head fabric of the plush figure body 20 and the head reinforcement body 10, is then brought out to hook the lower thread, forming a secure knot; Effect: the pull-off force of the hair implant is 28.3 N.

[0036] Example 2, as in Fig. 3 and Fig. 5 shown (manufacturing the head reinforcement body 10 by compression molding according to the product design requirements) Process: according to the curved surface of the inner wall of the plush figure's head, a head reinforcement body 10 with a thickness of 2.0 mm is produced by compression molding using silicone or rubber material; Attachment: Position the head reinforcement body 10 on the inner surface of the head hair implantation area 201 of the plush figure and hem or sew it closed with cross stitches with a stitch spacing of 2 mm; Hair implantation: the needle of the hair implantation machine successively penetrates the head fabric of the plush figure body 20 and the head reinforcement body 10, is then brought out to hook the lower thread, forming a secure knot; Effect: the coverage rate of the spiral hair implantation node is increased by 300%.

[0037] Exemplary embodiment 3 (manufacturing the head reinforcement body 10, which closely matches the shape of the outer plush layer, by rotational molding according to the product design requirements), as shown in Fig. 3, Fig. 6 and Fig. 7 shown: Process: one-time molding of the PVC head reinforcement body 10 with a thickness of 3 mm, which highly matches the shape of the outer plush layer of the plush figure, by rotational molding; Attachment: Positioning the head reinforcement body 10 inside the head hair implantation area 201 of the plush figure and then joining it by high-frequency hot pressing; Hair implantation: the needle of the hair implantation machine successively penetrates the head fabric of the plush figure body 20 and the head reinforcement body 10, is then brought out to hook the lower thread, forming a secure knot; Effect: Hair implantation density of 120 tufts per square centimeter without loosening threads.

[0038] Example 4, as in Fig. 2 and Fig. 4 shown (manufacturing the head reinforcement body 10, which exactly matches the curved surface of the inner wall of the hair implantation area 201 of the plush figure's head, using film manufacturing processes according to the product design requirements;) Process: Using soft PVC granules with a Shore hardness of 75A, the PVC material is formed into continuous rolls via a calender; the surface of the PVC roll is subjected to corona treatment to achieve a surface roughness of Ra ≤ 10 µm; Cutting and fastening: S1: using a water jet cutter, the PVC roll is cut into irregularly shaped reinforcement bodies 10 that exactly match the projected contour of the inner wall of the plush bear's head; S2: PUR hot melt adhesive is sprayed evenly onto the mating surface of the reinforcement body 10, creating a continuous boundary layer 40 of the adhesive layer; S3: the adhesive-coated reinforcement body 10 is precisely positioned and pressed onto the inner surface of the head tissue of the plush figure within the hair implantation area 201, the adhesive layer hardens completely and forms a continuous boundary layer with a coverage rate of ≥95%. Hair implantation: Using an automatic hair implantation machine to perform implantation procedures on the head area secured with the reinforcement body 10; the implantation needle easily penetrates the fabric and penetrates the PVC reinforcement body by about 0.4 mm, creating a secure Ω-shaped thread knot. Effect: the average pull-off force of the wig bundle reached 28.5 N. After 5,000 cycles of a fatigue test with repeated pulling, neither thread breakage nor detachment of the reinforcing bodies occurred, thus fully meeting and significantly exceeding the requirements of the toy safety standards.

[0039] Exemplary embodiment 5 (manufacturing the head reinforcement body 10, which matches the shape of the outer plush layer, by drop molding according to the product design requirements), as in Fig. 1, Fig. 2, Fig. 4 and Fig. 5 shown: Process: one-time shaping of the PVC head reinforcement body 10 with a thickness of 3 mm, which matches the shape of the outer plush layer of the plush figure, by drip molding; Attachment: Positioning the head reinforcement body 10 inside the head hair implantation area 201 of the plush figure and then joining it by high-frequency hot pressing; Hair implantation: the needle of the hair implantation machine successively penetrates the head fabric of the plush figure body 20 and the head reinforcement body 10, is then brought out to hook the lower thread, forming a secure knot; Effect: Hair implantation density of 120 tufts per square centimeter without loosening threads.

[0040] For experts in this field, various corresponding modifications and variations can be made based on the technical solutions and concepts described above, and all such modifications and variations should fall within the scope of protection of the claims of the present invention.

Claims

[1] Reinforcing structure body of the hair implantation of the plush figure, characterized by that it includes a physical reinforcing body formed from flexible material; wherein the reinforcement body has a fitting surface adapted to the contour of the inner wall of a hair implantation area in which it is located; wherein the reinforcement body has a spatial configuration either as a two-dimensional continuous plate or as a three-dimensional spatial insert. [2] Reinforcing structure body of the hair implantation of the plush figure according to claim 1, characterized by, that if the reinforcement body is a two-dimensional continuous plate, the deviation in the uniformity of the thickness of the reinforcement body is ≤±10% and the thickness is in a range of 0.5 mm to 6 mm; the surface roughness Ra of the reinforcement body is ≤12.5 µm; and the edges of the reinforcement body extend to the outside of the boundaries of the hair implantation area. [3] Reinforcing structure body of the hair implantation of the plush figure according to claim 1, characterized by , that if the reinforcement body is a three-dimensional spatial insert, the reinforcement body comprises a topological structure with a curved surface; the reinforcement body covers ≥50% of the inner surface of the hair implantation area; the thickness of the reinforcement body is in a range of 0.5 mm to 6 mm; and the thickness variation rate of the reinforcement body is ≤ 30%. [4] Reinforcing structure body of the hair implantation of the plush figure according to claim 1, characterized by that the flexible material of the reinforcement body comprises at least one of the following materials: PVC, TPU, TPE, rubber, silicone or their composite materials. [5] Reinforcing structure body of the hair implantation of the plush figure according to claim 1, characterized by that the Shore hardness of the reinforcement body is 15A to 70A. [6] Plush figure comprising a plush figure body sewn from textile fabric and a filling material, characterized by , that a reinforcing structure body according to claim 1 is attached to the inside of the hair implantation area of ​​the plush figure body; wherein a continuous boundary layer is formed between the mating surface of the reinforcing structure body and the inner wall of the plush figure body. [7] Plush figure according to claim 6, characterized by that the coverage rate of the continuous boundary layer is ≥ 90%. [8] Plush figure according to claim 6, characterized bythat the continuous boundary layer is a hot melt adhesive layer, a silicone layer, a polyurethane adhesive layer, or a trace of the sewing thread. [9] Plush figure according to claim 6, characterized by , that if the reinforcement body is a three-dimensional spatial insert, a buffer air gap layer is arranged between the inner surface of the reinforcement structure body and the filling material. [10] Plush figure according to claim 9, characterized by , that the air gap thickness of the buffer air gap layer is 0.2 to 1 mm; where the air gap connectivity rate is ≥ 60%.

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