Resin composition, artificial nail and preparation method therefor

Abstract

The present disclosure provides a resin composition, an artificial nail and a preparation method therefor. The resin composition comprises the following components: a first component, comprising a UV / moisture dual-curable resin, wherein the UV / moisture dual-curable resin contains a hydroxyl group; a second component, comprising a UV-curable resin, wherein the UV-curable resin contains an isocyanate group; and a photoinitiator. The artificial nail prepared from the resin composition of the present disclosure has pre-formability and mild foreign body sensation, and meets different requirements of users; moreover, because the resin composition comprises two or more resin components, the softness and hardness of the artificial nail can be adjusted by adjusting the types and content of the resins.

Description

Resin composition, artificial nail and preparation method thereof Technical Field

[0001] The present invention relates to a resin composition, an artificial nail and a preparation method thereof, and belongs to the field of artificial nails. Background Art

[0002] With the growing popularity of nail art, such as decorating fingernails and toenails with small artificial gemstones, drawing designs, applying stickers, and applying artificial nails, nail cosmetic materials and nail art techniques using these materials have rapidly developed. Nail art is primarily performed by applying paints, such as multi-colored nail polish, to fingernails and toenails. However, this liquid paint application method requires a long drying period after application and has poor durability, causing inconvenience to users.

[0003] In recent years, nail cosmetics using photocurable resin compositions known as gel nails have garnered significant attention due to their solvent-free nature, quick curing, and excellent coating thickness and glossability. Gel nails primarily consist of a polymer or oligomer, a monomer, and a photopolymerization initiator. These are applied to the nail surface and irradiated with an ultraviolet (UV) or light-emitting diode (LED) exposure system to form a cured film.

[0004] This photocurable resin composition is formed by applying a chemical substance to the natural nail to form a photocurable resin layer, which is then cured using an ultraviolet (UV) or light-emitting diode (LED) exposure system. This makes the nail soft and delicate, resistant to breakage, and resistant to discoloration in sunlight, while also providing a prominent gloss.

[0005] However, even with the above advantages, when a photocurable resin layer is directly formed on a natural nail, the finger needs to be immersed in a harmful solution for a long time in order to remove the photocurable resin layer. This is not only very harmful to the skin and nails, but also has the problem of serious damage to the natural nail after the photocurable resin layer is removed.

[0006] Reference 1 discloses a gel nail sticker comprising: a lower closure portion, formed to be directly attached to a fingernail or toenail, having a color or pattern and made of a soft material to correspond to the curved surface of the fingernail or toenail; and an upper closure portion, located above the lower closure portion, having a transparent coating to provide a gloss to the color or pattern of the lower closure portion. Prior to attachment to the fingernail or toenail, the sticker forms a soft, semi-solid form to correspond to the curved surface of the fingernail or toenail. After attachment to the fingernail or toenail, the sticker hardens to a solid form upon exposure to ultraviolet light while maintaining its attachment to the fingernail or toenail. However, this gel nail sticker has a high hardness, and because the shape and curvature of human nails vary, the sticker does not adhere well to the nail, resulting in a strong foreign body sensation during use. Furthermore, the sticker is a flat product, requiring the wearer to adjust its shape and strength, resulting in poor user effectiveness.

[0007] Existing light-cured nail stickers generally achieve the first curing by using a resin and a curing agent. Since this curing method only contains one resin, only a limited number of resin components can be selected to adjust the hardness of the nail sticker.

[0008] Therefore, researching an artificial nail that can be preformed and has a weak foreign body sensation and can flexibly adjust the softness and hardness has become a technical problem that needs to be solved urgently.

[0009] References:

[0010] Reference 1: CN107690292A

[0011] Summary of the Invention

[0012] Problems to be solved by the invention

[0013] In view of the technical problems existing in the prior art, the present disclosure first provides a resin composition, which can be used to prepare artificial nails. The prepared artificial nails can be preformed and have a weak foreign body sensation.

[0014] Furthermore, the present disclosure also provides a method for preparing artificial nails, which is simple and easy to implement, and the raw materials are easy to obtain, and is suitable for mass production.

[0015] Solutions for solving problems

[0016] [1] A resin composition comprising the following components:

[0017] A first component comprising a UV-moisture dual-cure resin, wherein the UV-moisture dual-cure resin has a hydroxyl group;

[0018] a second component comprising a UV curable resin, wherein the UV curable resin has an isocyanate group; and

[0019] Photoinitiator.

[0020] [2] The resin composition according to [1] above, wherein the content of the hydroxyl group in the first component is 52-110 mgKOH / g; and / or the content of the isocyanate group in the second component is 11.8%-13.8%.

[0021] [3] The resin composition according to [1] or [2] above, wherein the content of the first component is 25-65%, the content of the second component is 15-45%, and the content of the photoinitiator is 2-5%.

[0022] [4] The resin composition according to any one of [1] to [3] above, wherein the resin composition further comprises a third component, the third component comprising polycaprolactone polyol; preferably, the hydroxyl content of the polycaprolactone polyol is 54-98 mgKOH / g; more preferably, the content of the polycaprolactone polyol is 5-30% based on 100% of the total mass of the resin composition.

[0023] [5] The resin composition according to any one of [1] to [4] above, wherein the resin composition further comprises one or a combination of two or more of a diluent, a defoaming agent, and a leveling agent;

[0024] Preferably, the diluent is butyl acetate;

[0025] More preferably, based on 100% of the total mass of the resin composition, the content of the diluent is 5-25%; the content of the defoaming agent is 0.01%-0.5%; and the content of the leveling agent is 0.01%-0.5%.

[0026] [6] An artificial nail, characterized in that it is obtained by curing the resin composition according to any one of [1] to [4] above. Preferably, the hardness of the artificial nail is Shore D 30 or above.

[0027] [7] A method for preparing an artificial nail according to [6] above, comprising the following steps:

[0028] performing a glue-dipped or printed coating process on the resin composition to obtain a semi-finished artificial nail product;

[0029] The semi-finished artificial nail product is cured by ultraviolet light to obtain an artificial nail.

[0030] [8] The preparation method according to [7] above, wherein after the glue dripping or printing coating process, the semi-finished artificial nail is naturally cured at a temperature of 25-35°C for 4-8 hours to obtain a semi-finished artificial nail.

[0031] [9] The preparation method according to [7] or [8] above, wherein the wavelength of the ultraviolet light is 280-425 nm and the time of the ultraviolet light irradiation is 3 to 60 seconds.

[0032]

[0010] The preparation method according to any one of [7] to [9] above, wherein the Shore hardness of the semi-finished artificial nail is greater than A20 and less than D30.

[0033] Effects of the Invention

[0034] The artificial nails prepared from the resin composition disclosed herein can be preformed and have a weak foreign body sensation, meeting the different needs of users. Moreover, since the composition contains two or more resin components, the hardness and softness of the artificial nails can be adjusted by adjusting the type and content of the resins.

[0035] The preparation method of the artificial nail disclosed in the present invention is simple and easy to implement, the raw materials are easily obtained, and it is suitable for mass production. DETAILED DESCRIPTION

[0036] Various exemplary embodiments, features, and aspects of the present disclosure are described in detail below. The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or preferred over other embodiments.

[0037] In addition, numerous specific details are provided in the following detailed description to better illustrate the present disclosure. Those skilled in the art will appreciate that the present disclosure can be practiced without certain specific details. In other instances, methods, means, equipment, and steps well known to those skilled in the art are not described in detail in order to highlight the main points of the present disclosure.

[0038] Unless otherwise stated, the units used in this specification are international standard units, and the numerical values ​​and numerical ranges appearing in this disclosure should be understood to include the inevitable systematic errors in industrial production.

[0039] In this specification, unless otherwise specified, "%" means percentage by mass.

[0040] In this specification, the use of "may" includes both the meaning of performing a certain process and the meaning of not performing a certain process.

[0041] In this specification, references to "some specific / preferred embodiments," "other specific / preferred embodiments," "embodiments," etc., mean that the specific elements (e.g., features, structures, properties, and / or characteristics) described in connection with the embodiments are included in at least one embodiment described herein, and may or may not be present in other embodiments. In addition, it should be understood that the elements may be combined in various embodiments in any suitable manner.

[0042] In this specification, the numerical range expressed using "a numerical value A to a numerical value B" means a range including the endpoints A and B.

[0043] <First Aspect>

[0044] A first aspect of the present disclosure provides a resin composition comprising the following components:

[0045] A first component comprising a UV-moisture dual-cure resin, wherein the UV-moisture dual-cure resin has a hydroxyl group;

[0046] a second component comprising a UV curable resin, wherein the UV curable resin has an isocyanate group; and

[0047] Photoinitiator.

[0048] The inventors of this disclosure have discovered that by using the disclosed resin composition, artificial nails can be preformed and have minimal foreign body sensation, meeting the diverse needs of users. Furthermore, because the composition comprises a first component and a second component, i.e., two or more resin components, the hardness of the artificial nail can be adjusted by adjusting the type and content of the resins.

[0049] First component

[0050] The first component of the present disclosure includes a UV moisture dual-cure resin, wherein the UV moisture dual-cure resin has hydroxyl groups. Specifically, the hydroxyl group content in the first component is 52-110 mgKOH / g, for example, 55 mgKOH / g, 60 mgKOH / g, 65 mgKOH / g, 70 mgKOH / g, 75 mgKOH / g, 80 mgKOH / g, 85 mgKOH / g, 90 mgKOH / g, 95 mgKOH / g, 100 mgKOH / g, 105 mgKOH / g, etc.

[0051] The UV moisture dual curing resin can be specifically the UV polyurethane resin DS5246 produced by Guangzhou Disheng New Materials Co., Ltd., the polyurethane resin B-6014B produced by Guangzhou Boxing New Materials Technology Co., Ltd., the aliphatic polyurethane acrylic resin produced by Allnex Resins (China) Co., Ltd. One or a combination of two or more of 8210, wherein the UV moisture dual-curing resin has a hydroxyl content of 52-110 mgKOH / g.

[0052] In some specific embodiments, the content of the first component is 25-65%, for example, 28%, 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, 62%, etc. When the content of the first component is 25-65%, the UV moisture dual-cure resin can effectively function, and the hardness of the artificial nail can be controlled by controlling the content of the UV moisture dual-cure resin.

[0053] Second component

[0054] The second component of the present disclosure includes a UV curable resin, wherein the UV curable resin has an isocyanate group.

[0055] Specifically, the UV curable resin can be polyurethane acrylate produced by Allnex Resins (China) Co., Ltd. 4150, polyurethane acrylate B-405 produced by Guangzhou Boxing New Material Technology Co., Ltd., polyurethane acrylate SR-2345 produced by Guangzhou Haoyi New Material Technology Co., Ltd., etc., one or a combination of two or more polyurethane acrylates containing isocyanate.

[0056] In some specific embodiments, the content of the second component is 15-45%, for example, 18%, 20%, 22%, 25%, 28%, 30%, 32%, 35%, 38%, 40%, 42%, etc. When the content of the second component is 15-45%, the UV curable resin can effectively function.

[0057] The present disclosure can make the prepared artificial nail pre-shaped and have a weak foreign body sensation by using the combination of the first component and the second component.

[0058] The third component

[0059] In the present disclosure, the resin composition may further include a third component, and the third component includes polycaprolactone polyol. By using the third component, the present disclosure can further adjust the hardness of the artificial nail.

[0060] Specifically, the polycaprolactone polyol of the present disclosure may be a polycaprolactone diol, a polycaprolactone triol, etc. Further, in the polycaprolactone polyol, the content of the hydroxyl group is 54-98 mgKOH / g, for example: 58 mgKOH / g, 60 mgKOH / g, 62 mgKOH / g, 65 mgKOH / g, 68 mgKOH / g, 70 mgKOH / g, 72 mgKOH / g, 75 mgKOH / g, 78 mgKOH / g, 80 mgKOH / g, 82 mgKOH / g, 85 mgKOH / g, 88 mgKOH / g, 90 mgKOH / g, 92 mgKOH / g, 95 mgKOH / g, etc.

[0061] In some specific embodiments, based on 100% by weight of the resin composition, the content of the third component is 5-30%, for example, 8%, 10%, 12%, 15%, 18%, 20%, 22%, 25%, 28%, etc. When the content of the third component is 5-30%, the polycaprolactone polyol can effectively exert its effect, and the hardness of the artificial nail can be further controlled by controlling the content of the polycaprolactone polyol.

[0062] Specifically, the polycaprolactone polyol can be one of polycaprolactone polyol PCL-2202 produced by Chengdu Juren Chemical Industry Co., Ltd. and polycaprolactone polyol Capa2201 produced by Perstorp, or a combination of both.

[0063] Photoinitiator

[0064] The composition of the present disclosure also includes a photoinitiator. A photoinitiator is a compound that decomposes upon exposure to active energy rays such as ultraviolet light or visible light to generate free radical species, cationic species, or anionic species. The photoinitiator is not particularly limited, and commonly used photoinitiators such as free radical photoinitiators are examples.

[0065] Specifically, the free radical photoinitiator can be listed but not limited to one or a combination of two or more of the following: 1-hydroxycyclohexylphenyl ketone (photoinitiator 184), diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropane-1-one, benzyl dimethyl ketal, 4-(2-hydroxyethoxy)phenyl-(2-hydroxy-2-propyl)ketone, 2-methyl-2-morpholino(4-thiomethylphenyl)propane-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone, 2-hydroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]propanone oligomer, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, benzophenone, methyl o-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl- 4'-Methyl-diphenyl sulfide, 3,3',4,4'-tetrakis(tert-butylperoxycarbonyl)benzophenone, 2,4,6-trimethylbenzophenone, 4-benzoyl-N,N-dimethyl-N-[2-(1-oxo-2-propenyloxy)ethyl]benzyl ammonium bromide, (4-benzoylbenzyl)trimethylammonium chloride, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone Thioxanthone, 2,4-dichlorothioxanthone, 1-chloro-4-propoxythioxanthone, 2-(3-dimethylamino-2-hydroxy)-3,4-dimethyl-9H-thioxanthone-9-one meso chloride, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide (photoinitiator TPO), bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide (photoinitiator 819), acylphosphine oxides, etc.

[0066] In some specific embodiments, in order to maximize the effects of the present disclosure, the amount of the photoinitiator added is 2-5% by weight, for example, 2.5%, 3%, 3.5%, 4%, 4.5%, etc.

[0067] Specifically, the photoinitiator disclosed herein may be one of photoinitiator 184, photoinitiator TPO, and photoinitiator 819, or a combination of two or more thereof.

[0068] diluent

[0069] The composition of the present disclosure may optionally include a diluent. The present disclosure uses a diluent to increase the fluidity of the resin composition. The diluent of the present disclosure will completely evaporate during processing, and the raw material will form a film after volatilization. Therefore, the resin composition of the present disclosure may contain a certain amount of diluent. The diluent described in the present disclosure is not particularly limited, and those skilled in the art can make a conventional selection as needed.

[0070] The diluent may include one or a combination of two or more of toluene, xylene, trimethylbenzene, ethanol, butyl acetate, etc. Furthermore, in order to effectively exert the effect of the diluent disclosed in the present invention, butyl acetate is preferably used as the diluent.

[0071] In some specific embodiments, in order to make the effect of the present disclosure most effective, based on the total mass of the resin composition as 100%, the content of the diluent is 5-25%, for example: 7%, 9%, 11%, 13%, 15%, 17%, 19%, 21%, 23%, etc.

[0072] In the present disclosure, when the printing coating process is adopted, the polyester composition can be diluted to 300-2000 mPa.s by using a diluent; when the glue dripping process is adopted, the polyester composition can be diluted to 3000-5000 mPa.s by using a diluent.

[0073] Other components

[0074] The resin composition of the present disclosure may further contain other components. In addition to the above components, additives such as defoamers, pigments, leveling agents, dispersants, and leveling agents may be used in the present disclosure without prejudice to the purpose of the present disclosure.

[0075] Regarding the defoamer, based on the total mass of the resin composition as 100%, the content of the defoamer is 0.01%-0.5%, for example, 0.05%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, etc. In the present disclosure, the defoamer preferably does not contain silicone. Specifically, the defoamer can be defoamer Tego920, defoamer Tego923, defoamer BYK057, etc.

[0076] The leveling agent can be an organosilicon compound. Furthermore, based on the total mass of the resin composition as 100%, the content of the leveling agent is 0.01%-0.5%, for example, 0.05%, 0.1%, 0.15%, 0.2%, 0.25%, 0.3%, 0.35%, 0.4%, 0.45%, etc. Specifically, the leveling agent can be a polyether siloxane copolymer (TEGO 450), a polyether siloxane copolymer (TEGO 270), or a polyether-modified polydimethylsiloxane (BYK 333).

[0077] Furthermore, the first aspect of the present disclosure also provides a method for preparing a resin composition, comprising the step of mixing the components of the resin composition. The mixing temperature can generally be performed at room temperature.

[0078] <Second Aspect>

[0079] A second aspect of the present disclosure provides an artificial nail, which is obtained by curing the resin composition according to the first aspect of the present disclosure. Preferably, the hardness of the artificial nail is Shore D 30 or above.

[0080] The artificial nails disclosed herein can be preformed during the preparation process, and the finally obtained artificial nails have a weak foreign body sensation.

[0081] The present disclosure also provides a method for preparing the artificial nail according to the present disclosure, which comprises the following steps:

[0082] performing a glue-dipped or printed coating process on the resin composition to obtain a semi-finished artificial nail product;

[0083] The semi-finished artificial nail product is cured by ultraviolet light to obtain an artificial nail.

[0084] In some specific embodiments, the aforementioned substances are mixed and stirred to obtain a resin composition, which is then coated by dispensing or printing, and then naturally cured at a temperature of 25-35°C for 4-8 hours to obtain a semi-finished artificial nail. The hardness of the semi-finished artificial nail can be further adjusted by adjusting the temperature and time. Generally, in the present disclosure, the Shore hardness of the semi-finished artificial nail is greater than A20 and less than D30.

[0085] In some specific embodiments, the wavelength of the ultraviolet light is 280-425 nm, for example, 280-400 nm; and the duration of the ultraviolet light exposure is 3 to 60 seconds. Through ultraviolet light exposure, the semi-finished artificial nail product of the present disclosure can be formed into the artificial nail. Specifically, in the present disclosure, in addition to adjusting the composition, type, and content of the resin composition to control the hardness of the artificial nail, the duration of ultraviolet light exposure can also be adjusted to control the hardness of the final artificial nail, thereby further satisfying user preferences.

[0086] Example

[0087] The embodiments of the present disclosure will be described in detail below with reference to the examples. However, those skilled in the art will appreciate that the following examples are intended only to illustrate the present disclosure and should not be construed as limiting the scope of the present disclosure. Where specific conditions are not specified in the examples, the experiments were performed under conventional conditions or the conditions recommended by the manufacturer. Where the manufacturer of the reagents or instruments used is not specified, they are all commercially available conventional products.

[0088] Example 1

[0089] 15kg of butyl acetate and 55kg of UV polyurethane resin DS5246 with a hydroxyl content of 52mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. were mixed and stirred evenly, and then added to 25kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. 4150, then add 4.8 kg of photoinitiator 184, 0.1 kg of defoamer tego920 and 0.1 kg of leveling agent BYK333, mix and stir the above substances at room temperature to obtain a resin composition.

[0090] Example 2

[0091] 15 kg of butyl acetate and 53 kg of UV polyurethane resin DS5246 with a hydroxyl content of 52 mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. were mixed and stirred evenly, and then added to 27 kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. Then, 4.8 kg of photoinitiator TPO, 0.1 kg of defoaming agent tego920 and 0.1 kg of leveling agent BYK333 were added to 4150. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0092] Example 3

[0093] 15kg of butyl acetate was mixed with 50kg of UV polyurethane resin DS5246 with a hydroxyl content of 52mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. and stirred evenly, and then added to 30kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. 4150, then add 4.8 kg of photoinitiator (which consists of 1.8 kg of photoinitiator 184 and 3 kg of photoinitiator TPO), 0.1 kg of defoamer tego920 and 0.1 kg of leveling agent BYK333, and mix and stir the above substances at room temperature to obtain a resin composition.

[0094] Example 4

[0095] 15 kg of butyl acetate and 48 kg of UV polyurethane resin DS5246 with a hydroxyl content of 52 mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. were mixed and stirred evenly, and then added to 32 kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. Then, 4.5 kg of photoinitiator 819, 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added to 4150. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0096] Example 5

[0097] 15 kg of butyl acetate and 45 kg of UV polyurethane resin DS5246 with a hydroxyl content of 52 mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. were mixed and stirred evenly, and then added to 35 kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. 4150, then add 4.5 kg of photoinitiator (which consists of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333, and mix and stir the above substances at room temperature to obtain a resin composition.

[0098] Example 6

[0099] 10 kg of butyl acetate and 65 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. were mixed and stirred evenly, and then added to 20 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd., and then 4.5 kg of photoinitiator (consisting of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0100] Example 7

[0101] 10 kg of butyl acetate and 63 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. were mixed and stirred evenly, and then added to 22 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd., and then 4.5 kg of photoinitiator (consisting of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0102] Example 8

[0103] 10 kg of butyl acetate and 60 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. were mixed and stirred evenly, and then added to 25 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd., and then 4.5 kg of photoinitiator (consisting of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0104] Example 9

[0105] 10 kg of butyl acetate and 57 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. were mixed and stirred evenly, and then added to 28 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd., and then 4.5 kg of photoinitiator (consisting of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0106] Example 10

[0107] 10 kg of butyl acetate and 50 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. were mixed and stirred evenly, and then added to 35 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd., and then 4.5 kg of photoinitiator (consisting of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0108] Application Examples

[0109] The resin compositions prepared in Examples 1-10 were coated onto a release film using a coating tester and naturally cured at approximately 30°C for the time specified in Table 1 below to produce a semi-finished artificial nail. The semi-finished artificial nail and the artificial nail were then irradiated with 370nm UV light for the time specified in Table 1 below to produce an artificial nail. Shore hardness testing was then performed on the semi-finished artificial nail and the artificial nail according to the Shore hardness test method specified in GB / T 531-1999. The results are shown in Table 1 below.

[0110] Table 1

[0111] As shown in Table 1, the artificial nails prepared in Examples 1-10 of the present disclosure exhibit lower hardness and a softer texture as the content of the hydroxyl-containing UV-moisture dual-cure resin increases. However, the artificial nails obtained after UV irradiation exhibit higher hardness. Therefore, the present disclosure allows for adjusting the hardness and softness of artificial nails to meet user needs by adjusting the type and content of the resin.

[0112] Furthermore, as the natural curing time increases, the hardness of the semi-finished artificial nail increases and the texture becomes harder. As the UV light exposure time increases, the hardness of the artificial nail increases and the texture becomes further hardened. Therefore, the present disclosure can also further adjust the softness and hardness of the artificial nail by controlling the natural curing and UV light exposure time to meet user needs.

[0113] Example 11

[0114] 5kg of polycaprolactone polyol PCL-2202 with a hydroxyl content of 56mgKOH / g produced by Chengdu Juren Chemical Industry Co., Ltd. was mixed with 10kg of butyl acetate and stirred evenly. Then 55kg of UV polyurethane resin DS5246 with a hydroxyl content of 52mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. was added and stirred evenly. Then 25kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. was added. 4150, and finally add 4.5 kg of photoinitiator 184, 0.25 kg of defoaming agent tego920 and 0.25 kg of leveling agent BYK333. At room temperature, mix the above substances and stir them evenly to obtain a resin composition.

[0115] Example 12

[0116] 8kg of polycaprolactone polyol PCL-2202 with a hydroxyl content of 56mgKOH / g produced by Chengdu Juren Chemical Industry Co., Ltd. was mixed with 10kg of butyl acetate and stirred evenly. Then, 52kg of UV polyurethane resin DS5246 with a hydroxyl content of 52mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. was added and stirred evenly. Then, 25kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. was added. 4150, and finally add 4.5 kg of photoinitiator TPO, 0.25 kg of defoaming agent tego920 and 0.25 kg of leveling agent BYK333. At room temperature, mix the above substances and stir them evenly to obtain a resin composition.

[0117] Example 13

[0118] 10kg of polycaprolactone polyol PCL-2202 with a hydroxyl content of 56mgKOH / g produced by Chengdu Juren Chemical Industry Co., Ltd. was mixed with 10kg of butyl acetate and stirred evenly. Then 50kg of UV polyurethane resin DS5246 with a hydroxyl content of 52mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. was added and stirred evenly. Then 25kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. was added. 4150, and finally add 4.5 kg of photoinitiator (composed of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator TPO), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333. At room temperature, the above substances are mixed and stirred evenly to obtain a resin composition.

[0119] Example 14

[0120] 13kg of polycaprolactone polyol PCL-2202 with a hydroxyl content of 56mgKOH / g produced by Chengdu Juren Chemical Industry Co., Ltd. was mixed with 10kg of butyl acetate and stirred evenly. Then 48kg of UV polyurethane resin DS5246 with a hydroxyl content of 52mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. was added and stirred evenly. Then 25kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. was added. 4150, and finally add 3.5 kg of photoinitiator 819, 0.25 kg of defoaming agent tego920 and 0.25 kg of leveling agent BYK333. At room temperature, mix the above substances and stir them evenly to obtain a resin composition.

[0121] Example 15

[0122] 15kg of polycaprolactone polyol PCL-2202 with a hydroxyl content of 56mgKOH / g produced by Chengdu Juren Chemical Industry Co., Ltd. was mixed with 10kg of butyl acetate and stirred evenly, and then 45kg of UV polyurethane resin DS5246 with a hydroxyl content of 52mgKOH / g produced by Guangzhou Disheng New Materials Co., Ltd. was added and stirred evenly, and then 25kg of polyurethane acrylate with an isocyanate content of 12% produced by Allnex Resins (China) Co., Ltd. was added. 4150, and finally add 4.5 kg of photoinitiator (composed of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333. At room temperature, the above substances are mixed and stirred evenly to obtain a resin composition.

[0123] Example 16

[0124] 18 kg of polycaprolactone polyol Capa2201 with a hydroxyl content of 56 mgKOH / g produced by Perstorp was mixed and stirred evenly with 15 kg of butyl acetate, and then 45 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. was added and stirred evenly, and then 18 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd. was added, and finally 3.5 kg of photoinitiator (consisting of 1 kg of photoinitiator 184 and 2.5 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0125] Example 17

[0126] 20 kg of polycaprolactone polyol Capa2201 with a hydroxyl content of 56 mgKOH / g produced by Perstorp was mixed and stirred evenly with 15 kg of butyl acetate, and then 42 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. was added and stirred evenly, and then 18 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd. was added, and finally 4.5 kg of photoinitiator (which consists of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0127] Example 18

[0128] 23 kg of polycaprolactone polyol Capa2201 with a hydroxyl content of 56 mgKOH / g produced by Perstorp was mixed and stirred evenly with 15 kg of butyl acetate. 40 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. was added and stirred evenly. 18 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd. was added. Finally, 3.8 kg of photoinitiator (composed of 1.5 kg of photoinitiator 184 and 2.3 kg of photoinitiator 819), 0.1 kg of defoamer Tego920, and 0.1 kg of leveling agent BYK333 were added. The above substances were mixed and stirred evenly at room temperature to obtain a resin composition.

[0129] Example 19

[0130] 25 kg of polycaprolactone polyol Capa2201 with a hydroxyl content of 56 mgKOH / g produced by Perstorp was mixed and stirred evenly with 17 kg of butyl acetate, and then 35 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. was added and stirred evenly, and then 18 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd. was added, and finally 4.5 kg of photoinitiator (consisting of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0131] Example 20

[0132] 27 kg of polycaprolactone polyol Capa2201 with a hydroxyl content of 56 mgKOH / g produced by Perstorp was mixed and stirred evenly with 15 kg of butyl acetate, and then 35 kg of UV polyurethane resin B-6014B with a hydroxyl content of 78 mgKOH / g produced by Guangzhou Boxing New Material Technology Co., Ltd. was added and stirred evenly, and then 18 kg of polyurethane acrylate B-405 with an isocyanate content of 12.8% produced by Guangzhou Boxing New Material Technology Co., Ltd. was added, and finally 4.5 kg of photoinitiator (consisting of 1.5 kg of photoinitiator 184 and 3 kg of photoinitiator 819), 0.25 kg of defoamer tego920 and 0.25 kg of leveling agent BYK333 were added. At room temperature, the above substances were mixed and stirred evenly to obtain a resin composition.

[0133] Application Examples

[0134] The resin compositions prepared in Examples 11-20 were coated onto a release film using a coating tester and naturally cured at approximately 30°C for the time specified in Table 2 below to produce a semi-finished artificial nail. The semi-finished artificial nail and the artificial nail were then irradiated with 370nm UV light for the time specified in Table 2 below to produce the artificial nail. Shore hardness testing of the semi-finished artificial nail and the artificial nail was then performed according to the Shore hardness test method specified in GB / T 531-1999. The results are shown in Table 2 below.

[0135] Table 2

[0136] As can be seen from Table 2 and Examples 11-15, when polycaprolactone polyol PCL-2202 having a hydroxyl content of 56 mgKOH / g and produced by Chengdu Juren Chemical Industry Co., Ltd. is used to prepare the semi-finished artificial nails of the resin composition, as the amount of polycaprolactone polyol used increases, the semi-finished artificial nails become softer, and the softness of the artificial nails can be well controlled by the UV irradiation time.

[0137] As can be seen from Examples 16-20, when using Perstorp's polycaprolactone polyol Capa2201 with a hydroxyl content of 56 mgKOH / g to prepare semi-finished artificial nails made from the resin composition, the semi-finished artificial nails become softer as the amount of polycaprolactone polyol increases. The softness of the artificial nails can be well controlled by the UV exposure time.

[0138] Therefore, as can be seen from Examples 11-20, by using the resin composition of the present disclosure with a reasonable formulation, artificial nails of varying hardness can be produced. The present disclosure also allows for adjusting the softness of the artificial nails by adjusting the light exposure time of the semi-finished artificial nails, thereby meeting the different nail shape requirements of different people.

[0139] The above embodiments of the present disclosure are merely examples for the purpose of clearly illustrating the present disclosure, and are not intended to limit the embodiments of the present disclosure. For those skilled in the art, other variations or modifications in different forms can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the claims of the present disclosure.

Claims

1. A resin composition, characterized in that Includes the following components: A first component comprising a UV moisture dual-cure resin, wherein the UV moisture dual-cure resin has a hydroxyl group; a second component comprising a UV curable resin, wherein the UV curable resin has an isocyanate group; and Photoinitiator.

2. The resin composition according to claim 1, wherein In the first component, the content of the hydroxyl group is 52-110 mgKOH / g; and / or, in the second component, the content of the isocyanate group is 11.8%-13.8%.

3. The resin composition according to claim 1 or 2, characterized in that The content of the first component is 25-65%, the content of the second component is 15-45%, and the content of the photoinitiator is 2-5%.

4. The resin composition according to any one of claims 1 to 3, characterized in that The resin composition further comprises a third component, which includes polycaprolactone polyol; preferably, the hydroxyl content of the polycaprolactone polyol is 54-98 mgKOH / g; more preferably, based on 100% of the total mass of the resin composition, the content of the polycaprolactone polyol is 5-30%.

5. The resin composition according to any one of claims 1 to 4, characterized in that The resin composition further comprises one or a combination of two or more of a diluent, a defoaming agent, and a leveling agent; Preferably, the diluent is butyl acetate; More preferably, based on 100% of the total mass of the resin composition, the content of the diluent is 5-25%; the content of the defoaming agent is 0.01%-0.5%; and the content of the leveling agent is 0.01%-0.5%.

6. An artificial nail, characterized in that: The artificial nail is obtained by curing the resin composition according to any one of claims 1 to 5. Preferably, the hardness of the artificial nail is greater than Shore D 30 degrees.

7. A method for preparing an artificial nail according to claim 6, characterized in that: The following steps are involved: performing a glue-dipped or printed coating process on the resin composition to obtain a semi-finished artificial nail product; The semi-finished artificial nail product is cured by ultraviolet light to obtain an artificial nail.

8. The preparation method according to claim 7, characterized in that After the glue dripping or printing coating process, the semi-finished artificial nails are naturally cured at a temperature of 25-35°C for 4-8 hours to obtain the semi-finished artificial nails.

9. The preparation method according to claim 7 or 8, characterized in that The wavelength of the ultraviolet light is 280-425 nm; and the irradiation time of the ultraviolet light is 3-60 seconds.

10. The preparation method according to any one of claims 7 to 9, characterized in that: The Shore hardness of the semi-finished artificial nail product is greater than A20 and less than D30.

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