Synthetic leather and method for producing the same
AssigneeSeiren Co., Ltd.
InventorsNorihiko Yoshida, Yukari Suzuki
Life of this patent
Estimating the term…
Abstract
An aqueous sericin solution and a polar organic solvent are mixed together to prepare a sericin-containing solution, then the sericin-containing solution is added into a synthetic resin solution, followed by drying, to produce an synthetic leather wherein sericin is present as discrete particles of not larger than 3 μm in diameter within the synthetic resin of a skin layer almost uniformly at least 1.0×106 particles per square centimeter. The skin layer of the synthetic leather has a soft and moist touch like that of the natural leather and is superior in moisture absorbing and releasing properties and further superior in processing stability.
Claims9
An synthetic leather having as a skin layer a synthetic resin layer containing sericin, the sericin being present dispersedly in a state of discrete particles of not larger than 3 μm in diameter within the synthetic resin.
A method for producing an synthetic leather, comprising mixing an aqueous solution of sericin with a polar organic solvent to prepare a sericin-containing solution, adding the sericin-containing solution into a synthetic resin solution to prepare a sericin-containing resin solution, and then preparing a skin layer of an synthetic leather with use of the sericin-containing resin solution.
Dependencies are inferred from the claim text.