Transfer-type decorative sheet and method of manufacturing transfer-type decorative sheet
Provided are a transfer-type decorative sheet and a method of manufacturing a transfer-type decorative sheet, the transfer-type decorative sheet including a decorative layer that has excellent peelability from a temporary support and excellent glossiness in case of being seen from an oblique direction. The transfer-type decorative sheet includes: a temporary support; an underlayer that is peelable from and disposed on one surface of the temporary support; and a decorative layer that is disposed on the underlayer, in which the decorative layer includes at least one cholesteric liquid crystal layer, the underlayer is a layer that is formed of a composition including a monomer having one or two polymerizable groups, and a water contact angle of the underlayer is 50° or more.
1. A transfer-type decorative sheet comprising:
a temporary support;
an underlayer that is peelable from and disposed on one surface of the temporary support; and
a decorative layer that is disposed on the underlayer,
wherein the decorative layer includes at least one cholesteric liquid crystal layer,
the underlayer is a layer that is formed of a composition including a monomer having one or two polymerizable groups,
a water contact angle of the underlayer is 50° or more,
the monomer having one or two polymerizable groups has a cyclic structure,
a maximum reflectivity of an integral reflection spectrum in a wavelength range of 380 to 780 nm of the decorative layer is 50% or higher,
a specular reflectivity at a wavelength at which the decorative layer has the maximum reflectivity is 20% or lower, and
a half-width of an integral reflection spectrum of the decorative layer is 80 to 250 nm.
2. The transfer-type decorative sheet according to claim 1 ,
wherein a content of the monomer having one or two polymerizable groups is 25 mass % or higher with respect to a total mass of monomers in the composition.
3. The transfer-type decorative sheet according to claim 1 ,
wherein the cyclic structure is a structure represented by Formula (1),
4. The transfer-type decorative sheet according to claim 1 ,
wherein the cholesteric liquid crystal layer has a pitch gradient structure that is a structure in which a helical pitch changes in a thickness direction.
5. The transfer-type decorative sheet according to claim 1 ,
wherein a thickness of the decorative layer is 5.0 μm or more.
6. A method of manufacturing the transfer-type decorative sheet according to claim 1 , the method comprising:
a step of forming the underlayer on the temporary support; and
a step of forming the decorative layer on the underlayer.
7. The transfer-type decorative sheet according to claim 1 ,
wherein the decorative layer is obtained by applying a liquid crystal composition including a liquid crystal compound and a chiral agent to the underlayer to obtain a coating film, aligning the liquid crystal compound in the coating film and curing the coating film.
8. The transfer-type decorative sheet according to claim 1 ,
wherein the cholesteric liquid crystal layer has a flapping structure.