A photocurable nail cosmetic material
A technology of light-curable and cosmetic materials, applied in the field of nail stickers, nail sheets, and gel nails, which can solve the problem of gel nail removal methods and removability, neurotoxicity and carcinogenicity, harming the human body, and inducing allergies, etc. Excellent storage stability, durability, and easy repair
Active Publication Date: 2019-07-19
KJ CHEM
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- Description
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AI Technical Summary
Problems solved by technology
Even if oligomers or monomers with low skin irritation are used, the neurotoxicity and carcinogenicity of these chemical substances may be harmful to the human body, so there is a risk of chronic poisoning, induction of allergies, etc. by the user due to direct contact
Furthermore, there is no mention of the removal method and removability of the cured gel nails at all.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0104] Preparation of embodiment 1 photocurable nail makeup material (D-1)
[0105] (A) 97.0 parts by mass of polyurethane (A-1) having a polybutadiene skeleton having an acrylamide group, and 3.0 parts by mass of 1-hydroxycyclohexylphenyl ketone (C-1, IRGACURE184) as (C), respectively It was added to a container, and it stirred at 40 degreeC for 1 hour, and the photocurable nail cosmetic material (D-1) of Example 1 which was uniform and transparent was obtained.
Embodiment 2～10
[0106] Preparation of Examples 2-10 Photocurable Nail Makeup Materials (D-2)-(D-10)
[0107] According to the composition shown in Table 2, the same operation as Example 1 was performed, and the photocurable nail makeup materials (D-2)-(D-10) corresponding to Examples 2-10 were obtained.
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The present invention provides a photocurable nail cosmetic material which is excellent in coatability, curability, safety, and storage stability, and which has sufficient curability even when being applied thinly; the invention further provides a gel nail, a nail sticker, and a nail piece which are obtained from the nail cosmetic material and which have good gloss and durability and which have both flexibility and toughness and can be easily repaired and removed. The photocurable nail cosmetic material is characterized by comprising a polyurethane (A) containing a (meth) acrylamide group.
Description
technical field [0001] The present invention relates to a photocurable nail cosmetic material, and gel nails, nail stickers, and nail sheets obtained by curing the photocurable nail cosmetic material. Background technique [0002] With the increasing popularity of nail art such as decorating small artificial gemstones on nails (fingernails), drawing patterns, pasting stickers, and fake nails, nail cosmetic materials and nail art techniques using nail cosmetic materials have developed rapidly. The representative of previous nail makeup materials is nail polish and glaze composed of nitrocellulose, alkyd resin, ethyl acetate or butyl acetate and other solvents. ) and varnish (top coat) in order to form a coating film by overlapping three layers on the nail surface. However, since organic solvents are used, it takes a long time to dry and it is difficult to dry inside and thicken. In addition, in the peeling operation (removal) of the coating film accompanying the growth of na...
Claims
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IPC IPC(8): A61K8/87A61Q3/02A45D31/00C08J7/04C09D175/14C09D7/63C08L33/00
CPCA61K8/87A61Q3/02A45D31/00C08J7/04C09D175/14C09D7/63C08J2333/00C08J2475/14
Inventor 平田明理竹之内美希足立祐辅小林大辅
Owner KJ CHEM