Filament for 3D printing and method for producing crystalline soft resin molded article

Abstract

The present invention provides a filament for three-dimensional printer molding which includes a resin that can be molded by a three-dimensional printer in a wide temperature range and from which a crystalline soft resin molded article excellent in terms of flexible texture etc. can be produced; and a method for producing a crystalline soft resin molded article, wherein the filament for three-dimensional printer molding includes a polyester-based thermoplastic elastomer wherein a durometer D hardness (JIS K6253-1993) is 40 or less and thermal properties measured with a differential scanning calorimeter satisfy the following conditions: a melting peak temperature (A) is 120 to 220° C. by heating at 10° C./min; a crystallization peak temperature (B) is 60 to 160° C. by cooling at 10° C./min; and the crystallization peak observed during cooling at 10° C./min has a half-value temperature width of 10 to 30° C.

Dependencies are inferred from the claim text.