Gradient color massager and preparation method therefor

Abstract

A gradient color massager includes a non-transparent core and a single-colored transparent cover wrapped around the outer surface of the non-transparent core. A vibrator is provided in the non-transparent core, and the thickness of each area of the outer surface of the single-colored transparent cover to the non-transparent core varies.

Claims

1. A gradient color massager, comprising a non-transparent core and a single-colored transparent cover wrapped around an outer surface of the non-transparent core, wherein a vibrator is embedded inside the non-transparent core, the non-transparent core wraps the vibrator, a thickness of an outer surface of the single-colored transparent cover toward the non-transparent core varies, the single-colored transparent cover is connected to the non-transparent core, and the non-transparent core is made of rubber material; wherein the outer surface of the non-transparent core is provided with at least one first convex pattern, and the single-colored transparent cover is provided with a first concave pattern into which the at least one first convex pattern is inserted to be connected to at least one first convex pattern; wherein at least one second concave pattern is provided on the outer surface of the non-transparent core, and the single-colored transparent cover is provided with a second convex pattern configured to be inserted into the at least one second concave pattern to be connected to at least one second concave pattern; and wherein at least one of the at least one first convex pattern or the second convex pattern is arranged along a length direction and a circumferential direction of the non-transparent core; wherein the non-transparent core is prepared from a viscous shading rubber material; and the viscous shading rubber material is prepared by mixing uncured silicone rubber and shading filler evenly; the uncured silicone rubber comprises the following weight percentages of raw materials: 40-60% of methyl vinyl silicone rubber; 10-30% of hydroxysilicone oil; 5-15% of hydrogen containing silicone oil; 3-8% of viscosity modifier; 1-3% of platinum vulcanizing agent; 0.1-0.3% of inhibitors; and filler in balance; wherein the viscosity modifier comprises the following weight percentages of raw materials: 30-50% of 1,3-bis(3-methylacryloyloxypropyl) tetra (trimethylsiloxy) disiloxane; 30-50% of vinyl tris (dimethylsiloxane) silane; 2-10% of polyethylene glycol monomethyl ether polylactic acid diblock copolymer; and 10-20% of silane-PEG-OH.

2. The gradient color massager according to claim 1, wherein a side of the at least one first convex pattern and a side of the first concave pattern are arc-shaped surfaces, a side of the second convex pattern and a side of the at least one second concave pattern are arc-shaped surfaces, a top surface of the at least one first convex pattern and a bottom surface of the at least one first convex pattern are arc-shaped surfaces, a top surface of the second convex pattern and a bottom surface of the second convex pattern are arc-shaped surfaces, and a width of each of the arc-shaped surfaces is greater than 2 mm.

3. The gradient color massager according to claim 1, wherein the non-transparent core is a single-colored non-transparent core or a multi-color non-transparent core.

4. The gradient color massager according to claim 1, wherein a surface of the non-transparent core is provided with a pattern layer, and the pattern layer is connected to the single-colored transparent cover.

5. The gradient color massager according to claim 1, wherein at least one of: at least one waved section extends on the outer surface of the single-colored transparent cover; the outer surface of the single-colored transparent cover is defined with at least one recess; or the outer surface of the single-colored transparent cover is a smooth surface.

6. The gradient color massager according to claim 1, wherein the single-colored transparent cover is made of the rubber material or a thermoplastic elastomer.

7. A method for preparing the gradient color massager according to claim 1, comprising the following steps: mixing the uncured silicone rubber and the shading filler evenly to obtain the viscous shading rubber material; curing and molding a first portion of the viscous shading rubber material to form a core bottom greenbody with a first receiving groove inside the core bottom greenbody; placing the vibrator inside the first receiving groove, and then filling a second portion of the viscous shading rubber material onto a surface of the vibrator, so that the viscous shading rubber material is adhered to the vibrator and the core bottom greenbody; and performing curing to form the non-transparent core; mixing the uncured silicone rubber with a pigment evenly to obtain a viscous single-colored rubber material, and curing a first portion of the viscous single-colored rubber material to form a cover bottom greenbody with a second receiving groove inside the cover bottom greenbody; and accommodating the non-transparent core inside the second receiving groove; and filling the non-transparent core with a second portion of the viscous single-colored rubber material, bonding the viscous single-colored rubber material with the non-transparent core and the cover bottom greenbody, and curing to form the single-colored transparent cover that covers the outer surface of the non-transparent core, wherein the thickness of the outer surface of the single-colored transparent cover toward the non-transparent core varies, to obtain the gradient color massager; wherein conditions for curing and forming comprise temperatures of 50-95 C., forming time of 120-500 s, and forming pressure of 10-80 kg/cm.sup.2.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic structural diagram of a massager according to Example 1.

(2) FIG. 2 is a schematic diagram of a non-transparent core structure according to Example 1.

(3) FIG. 3 is a schematic cross-sectional structural diagram of a massager according to Example 1.

(4) FIG. 4 is a schematic structural diagram of a massager in Example 2.

(5) FIG. 5 is a schematic cross-sectional structural diagram of a massager according to Example 3.

(6) FIG. 6 shows a mold structure in Example 4.

DETAILED DESCRIPTION

(7) The following provides further detailed explanations of the present application in conjunction with FIGS. 1-6 and the embodiments.

(8) Description of Part of Raw Materials

(9) The number average molecular weight of methyl vinyl silicone rubber is 100000 to 200000, in which the vinyl content is 0.17-0.32%; Hydroxysilicone oil: Shengbang Organosilicon SI-H202 Hydrogen containing silicone oil: molecular formula C.sub.3H.sub.9OSi.Math.(CH.sub.4OSi).sub.n.Math.C.sub.3H.sub.9Si Platinum vulcanizing agent: Shenzhen Tianqi New Material Technology Co., Ltd., Model SK-P030; The inhibitor is diallyl maleate; Filler: gas-phase silica with a particle size of 100-300 nm; The molecular structure of polyethylene glycol monomethyl ether polylactic acid diblock copolymer is as follows, where n and m are both 5:

(10) ##STR00001## The molecular structure of silane-PEG-OH is as follows, with an average molecular weight of 1000-2000:

(11) ##STR00002## The shading filler is titanium dioxide, 500-800 mesh; The pigment is iron oxide yellow.

PREPARATION EXAMPLES OF UNCURED SILICONE RUBBER

Preparation Example 1

(12) An uncured silicone rubber was prepared by the following method.

(13) According to the weight percentage, 50% methyl vinyl silicone rubber, 30% hydroxy silicone oil, and 5% hydrogen containing silicone oil were weighed and put into a kneading machine. The materials were mixed at a speed of 100 r/min for 30 minutes to ensure thorough and uniform mixing to obtain mixture A. 3% of the viscosity modifier and 11% of the filler were weighed, placed in a stirring device, mixed at a speed of 100 r/min for 30 minutes to ensure thorough and uniform mixing to obtain mixture B. All mixture B was added to mixture A and mixing was continued for 30 minutes to obtain mixture C. 1% platinum vulcanizing agent and 0.1% inhibitor were added to mixture C and mixing was continued for 5 minutes to ensure thorough and uniform mixing to uncured silicone rubber with a weight of 10 kg.

(14) According to weight percentage, 30% of 1,3-bis(3-methylacryloyloxypropyl) tetra (trimethylsiloxy) disiloxane, 48% of vinyltris (dimethylsiloxy) silane, 2% of polyethylene glycol monomethyl ether polylactic acid diblock copolymer, and 20% of silane-PEG-OH were uniformly mixed to obtain the viscosity modifier.

Preparation Examples 2-3

(15) Preparation Examples 2-3 differed from Preparation Example 1 in that the amount of raw materials used was different, as shown in Table 1;

(16) TABLE-US-00001 TABLE 1 Raw Material Amount for Preparation Examples 1-3 Preparation Preparation Preparation Raw Material Example1 Example2 Example3 Methyl vinyl silicone rubber 50 55 60 Hydroxysilicone oil 30 20 10 Hydrogen containing silicone oil 5 10 15 Platinum vulcanizing agent 1 2 3 Filler 10.9 7.8 3.7 Viscosity Amount 3 5 8 modifier 1,3-Bis (3- 30 40 50 methylacryloyloxypropyl) tetra (trimethylsiloxy) disiloxane Vinyl tris 48 40 30 (dimethylsiloxane) silane Polyethylene glycol 2 5 10 monomethyl ether polylactic acid diblock copolymer Silane-PEG-OH 20 15 10 Inhibitor 0.1 0.2 0.3

COMPARATIVE PREPARATION EXAMPLES

Comparative Preparation Example 1

(17) The Comparative Preparation Example 1 differed from Preparation Example 1 in that 1,3-bis(3-methylacryloyloxypropyl) tetra (trimethylsiloxy) disiloxane was replaced equally with vinyltris (dimethylsiloxy) silane.

Comparative Preparation Example 2

(18) The Comparative Preparation Example 2 differed from Preparation Example 1 in that polyethylene glycol monomethyl ether polylactic acid diblock copolymer was equally replaced with vinyltris (dimethylsiloxane) silane.

Comparative Preparation Example 3

(19) The Comparative Preparation Example 3 differed from Comparative Preparation Example 1 in that silane-PEG-OH was replaced equally with vinyltris (dimethylsiloxane) silane.

Comparative Preparation Example 4

(20) The Comparative Preparation Example 4 differed from Comparative Preparation Example 1 in that the viscosity modifier was vinyltris (dimethylsiloxyalkyl) silane.

EXAMPLES

Example 1

(21) The present embodiment provided a gradient color massager, as shown in FIGS. 1 and 2, including a non-transparent core 100 and a single-colored transparent cover 200 wrapped around the surface of the non-transparent core 100. The thickness of the outer surface of the single-colored transparent cover 200 toward the non-transparent core varied. By wrapping the core with the sleeve, the problem of printed pattern layer 5 falling off under high-frequency vibration and friction can be effectively avoided, thereby improving the aesthetics and service life of the massager.

(22) Referring to FIG. 3, specifically, the non-transparent core 100 was provided with a vibrator 7 thereinside. The vibrator 7 includes a vibrating assembly, a battery, and a switch assembly. The non-transparent core can be made of rubber material or thermoplastic elastomer, preferably, rubber material, specifically silicone material. The silicone material wraps the vibrator 7 during molding, stabilizing and fixing it inside the non-transparent core. Due to the softness of silicone, the normal use of the vibrator 7 can be achieved. In addition, the non-transparent core 100 can be a single-colored non-transparent core or a multi-color non-transparent core, wherein the multi-color non-transparent core refers to a combination of multiple colors. In this Example, a single-colored non-transparent core was preferred, specifically a white non-transparent core.

(23) The single-colored transparent cover 200 can be made of rubber material or thermoplastic elastomer. The preferred material in the present application was a colored and transparent silicone material, which can stably wrap around the surface of the non-transparent core during molding. With changed thickness in combination with the non-transparent core, it visually presents a gradient color effect, making the appearance of the massager more beautiful. The color of the single-colored transparent cover 200 can be red, yellow, blue, etc., and in this Example, it was yellow.

(24) Specifically, there was at least one first convex pattern 1 protruding from the outer surface of the non-transparent core 100, and the number of first convex patterns 1 can be 1, 2, 3, 5, 10, 20, etc. When there were multiple first convex patterns 1, they can be distributed side by side or randomly, and the length of the first convex patterns 1 can be identical or different. The first convex patterns 1 can be arranged in the length direction and/or circumferential direction of the non-transparent core. Specifically, the first convex patterns 1 can be uniformly distributed in the length direction of the non-transparent core, forming a longitudinal gradient color effect. The second convex pattern 3 can be evenly distributed in the circumferential direction of the single-colored transparent cover 200, forming a circular gradient color effect. In this Example, it was preferred that the length of the first convex pattern 1 were identical, distributed side by side with a spacing of 3 mm and the same length, as shown in FIG. 2.

(25) The single-colored transparent cover 200 was concave with a first concave pattern 2 that was insertion connected to the first convex pattern 1. The providing of the first convex pattern 1 and the first concave pattern 2 can enhance the stability of the connection between them, preventing the single-colored transparent cover 200 from loosening or falling off during use. The first convex pattern 1 can be of circular, square, or other shapes, while the first concave pattern 2 was designed to match it accordingly. For example, the first convex pattern 1 can be a circular protrusion, while the first concave pattern 2 was a corresponding circular groove.

(26) At least one second concave pattern 4 was recessed on the outer surface of the non-transparent core 100, and the single-colored transparent cover 200 was convex with a second convex pattern 3 that was insertion connected to the second concave pattern 4. The providing of the second concave pattern 4 and the second convex pattern 3 was also aimed at enhancing the connection stability between them. The second concave pattern 4 can be of a straight line, a wave, or other shapes, while the second convex pattern 3 was designed to match it accordingly. Similarly, the second concave pattern 4 was matched with the second convex pattern 3, and in this Example, it was preferred that the number, distribution, length, direction, etc. of the first convex pattern 1 and the second convex pattern 3 were identical, and the first convex pattern 1 was excessively connected to the first concave pattern 2, as shown in FIG. 2.

(27) The side of the first convex pattern 1 and the side of the first concave pattern 2 were both of an arc shape, and the side of the second convex pattern 3 and the side of the second concave pattern 4 were both of an arc shape. The top and bottom surfaces of the first convex pattern 1 were both of arc shape, while the top and bottom surfaces of the second convex pattern 3 were also of arc shape. The providing of the are surfaces gradually change the thickness of the single-colored transparent cover 200, presenting a better gradient color effect. In this Example, the width of all arc surfaces was greater than 2 millimeters, preferably 3 mm, so as to ensure sufficient contact area and connection strength.

(28) The outer surface of the single-colored transparent cover 200 was a smooth surface. The design of a smooth surface can reduce friction and scratches, and improve the comfort of using the massager. The production of smooth surfaces can be achieved through polishing, grinding, or other suitable methods.

(29) The implementation principle of this Example was that, this Example adopts a double-layer structure design of a non-transparent core and a single-colored transparent cover 200, and utilizes the thickness variation of the single-colored transparent cover 200 to achieve a gradient color effect, which not only solves the problem of traditional spray painted patterns easily falling off, but also improves the beauty and service life of the massager. The insertion connection design between the non-transparent core and the single-colored transparent cover 200 enhances the stability of their connection, preventing loosening or detachment under high-frequency vibration and friction. In addition, by adjusting the shape and position of the first convex pattern 1 and the second convex pattern 3, the direction and degree of the gradient color effect can be flexibly controlled, making the appearance of the massager more diverse.

Example 2

(30) The present embodiment provided a gradient color massager, as shown in FIGS. 4 and 5, including a non-transparent core 100 and a single-colored transparent cover 200 wrapped around the surface of the non-transparent core 100. The thickness of the outer surface of the single-colored transparent cover 200 toward the non-transparent core varied. The outer surface of the single-colored transparent cover 200 can be extended with at least one waved section 6. The design of the waved section 6 gradually changes the thickness of the single-colored transparent cover 200, creating a natural transition effect. The length and width of waved section 6 can be adjusted as needed to achieve the best visual effect. The position of the waved section 6 can be located at any position of the massager, including the tail, the middle, or the head of the massager. It can also gradually fade from one end of the massager to the other, or gradually deepen from the middle to both sides.

(31) The waved section 6 can be formed by at least one raised pattern, so as present a better gradient color effect in combination with the non-transparent core. In this Example, it was preferred to use a raised pattern, which corresponds to the second convex pattern 3 and the first concave pattern 2. The waved section 6 can also be grid shaped, lattice shaped, or other shapes.

(32) The outer surface of the single-colored transparent cover 200 was concave with at least one recess 8, which can be located at any position on the outer surface of the single-colored transparent cover 200. This example preferably uses at least one concave pattern to form the recess 8, which corresponds to the second convex pattern 3 and was connected to the convex pattern to present a concave-convex structure. In addition, the first convex pattern 1, the second convex pattern 3, the second concave pattern 4, and the first concave pattern 2 were used to achieve a better gradient color effect on the surface of the massager.

Example 3

(33) The present example provides a gradient color massager, as shown in FIG. 5, including a non-transparent core 100 and a single-colored transparent cover 200 wrapped around the surface of the non-transparent core 100. The thickness of the outer surface of the single-colored transparent cover 200 toward the non-transparent core varied. The surface of the non-transparent core can also be provided with a pattern layer 5, which was connected to a single-colored transparent cover 200. Pattern layer 5 can be made by printing, spraying, or other suitable methods. The providing of pattern layer 5 allows for the selection of different patterns and colors as needed, making the appearance of the massager more personalized. At the same time, the pattern layer 5 was arranged on the non-transparent core and will not directly contact the human body.

Example 4

(34) A method for preparing a gradient color massager as described in Example 1, prepared by the following method.

(35) Uncured silicone rubber and shading filler were mixed evenly in a weight ratio of 100:5 to obtain a viscous shading rubber material. A portion of the viscous shading rubber material was placed into a mold for curing and forming, forming a core bottom greenbody with a first receiving groove inside the greenbody body. The vibrator was placed inside a first receiving groove, as seen in the mold structure shown in FIG. 6. The other portion of the viscous shading rubber material was placed into the middle mold, so that the viscous shading rubber material was tightly adhered to the vibrator and the core bottom greenbody, and then cure to obtain a non-transparent core with first convex and second concave patterns on the surface.

(36) Uncured silicone rubber and a pigment were mixed in a weight ratio of 100:1 to obtain a viscous single-colored rubber material. A portion of the viscous single-colored rubber material was cured to form a cover bottom greenbody with a second receiving groove thereinside. Then the non-transparent core was provided inside the second receiving groove.

(37) The other portion of the viscous single-colored rubber material was filled onto the surface of the non-transparent core, and tightly bond the viscous single-colored rubber material with the non-transparent core and the cover bottom greenbody. Then, they were placed in the mold and cured to form a single-colored transparent cover that tightly covers the outer surface of the non-transparent core. The single-colored transparent cover corresponds to the first convex pattern and the second concave pattern, respectively, forming the first concave pattern and the second convex pattern that were interlocked with it, to obtain a gradient color massager.

(38) In particular, the curing and molding conditions in the above processes included: temperature of 95 C., molding time of 120 s, and molding pressure of 80 kg. Untreated silicone rubber was obtained by mixing gas-phase white carbon black, platinum vulcanizing agent, methyl vinyl silicone rubber, hydrogen containing silicone oil, and inhibitor in a weight ratio of 1:0.1:10:3:0.01.

Example 5

(39) The Example 5 differed from Example 4 in that the curing and molding conditions in the process are: temperature of 50 C., molding time of 500 s, and molding pressure of 10 kg.

Example 6

(40) The Example 6 differed from Example 4 in that the curing and molding conditions in the process are: temperature of 90 C., molding time of 300 s, and molding pressure of 50 kg.

Example 7-13

(41) The Examples 7-13 differed from Example 4 in that the source of uncured silicone rubber was different, as shown in Table 2;

(42) TABLE-US-00002 TABLE 2 Sources of uncured silicone rubber from Examples 7-13 Examples Sources of uncured silicone rubber Example 7 Preparation Example1 Example 8 Preparation Example2 Example 9 Preparation Example3 Example 10 Comparative Preparation Example1 Example 11 Comparative Preparation Example2 Example 12 Comparative Preparation Example3 Example 13 Comparative Preparation Example4
Performance Testing Experiment

(43) The single-colored uncured silicone rubber obtained from Examples 4 and 7-13 was placed into a mold, and then put into a vulcanizing machine for 120 seconds at a temperature of 95 C. to obtain test samples, which was used for the following mechanical property tests.

(44) Testing Methods/Experimental Methods

(45) Mechanical properties: referring to the testing method ASTMD412 for testing fracture strength and elongation, with a thickness of 2 mm;

(46) Structural stability: the gradient color massager (weighing 238 g) obtained from Example 4-13 was placed horizontally, and then subjected to a free fall from a 5 m platform. This process was repeated for 10 times to check if it can be used normally. It was checked if the single-colored transparent cover was damaged and cut open to see if there was any detachment between the non-transparent core and the single-colored transparent cover. The corresponding experimental results were recorded.

(47) The above experiments were shown in Table 1;

(48) TABLE-US-00003 Experimental data of Examples 5-14 Breaking Elongation Test items strength (MPa) (%) Structural stability Example 4 18.7 598 Unusable, with damage and peeling Example 5 \ \ Unusable, with damage and peeling Example 6 \ \ Unusable, with damage and peeling Example 7 24.6 707 Usable, without damage or peeling Example 8 25.7 705 Usable, without damage or peeling Example 9 24.1 711 Usable, without damage or peeling Example 10 22.3 678 Usable, without damage or peeling Example 11 23.6 684 Usable, without damage or peeling Example 12 23.1 681 Usable, without damage or peeling Example 13 19.1 632 Unusable and damaged, without peeling

(49) In combination with Example 7, Example 4 and Table 3, it can be seen that the tear strength and elongation of Example 7 are higher than those of Example 4, indicating that the single-colored uncured silicone rubber produced by the present application has better mechanical properties, which can reduce cracking, tearing and other phenomena during use. At the same time, in Example 4, the sample cannot be used, has damage and detachment, while in Example 7, the samples did not show the above phenomena, indicating that the uncured silicone rubber produced by the present application has better effects, making the gradient color massager have better structural stability and mechanical properties.

(50) In combination with Example 7, Examples 10-13 and Table 3, it can be seen that the tear strength and elongation of Example 7 are higher than those of Examples 10-13, indicating that the use of 1,3-bis(3-methylacryloyloxypropyl) tetra (trimethylsiloxy) disiloxane, vinyltris (dimethylsiloxy) silane, polyethylene glycol monomethyl ether polylactic acid diblock copolymer, and silane-PEG-OH compound has a better effect, further enhancing the bonding and mechanical properties of uncured silicone rubber, stabilizing the structure of the obtained gradient color massager, and providing its durability.

(51) This specific example are only an explanation of the present application and are not a limitation to the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment as needed without creative contributions, but as long as they are within the scope of the claims of the present application, they are protected by the Patent Law.

LISTING OF REFERENCE SIGNS

(52) 100. Non-transparent core 200. Single-colored transparent cover 1. First convex pattern 2. First concave pattern 3. Second convex pattern 4. Second concave pattern 5. Pattern layer 6. Waved section 7. Vibrator 8. Recess 400. Mold structure