Flexible tube for endoscopes and method for producing same

An endoscope flexible tube having a cylindrical flexible tube base that has flexibility and a resin layer that coats the flexible tube base,

• wherein the resin layer, which is a single layer or multiple layers of two or more layers, comprises a layer A which comprises:
• a resin component, and
• both a hindered phenol compound and a hindered amine compound,
• wherein the resin component comprises polyester elastomers, and at least one of polyurethane elastomers or polyamide elastomers,
• wherein the content of the polyester elastomers in the resin component of the layer A is 55 mass % or more,
• wherein the hindered phenol compounds have structure sites represented by the following Formula (1),
• where, R1 and R2 each independently indicate a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or an aralkyl group having 7 to 36 carbon atoms, and * indicates a bonding position,
• wherein the hindered amine compounds are compounds which have repeating units represented by Formula (2-2),
• where, R3 to R6 each independently indicate a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, R7 indicates a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, or —OR8, R8 indicates a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, r represents an integer, Q represents an (s+2)-valent linking group, and s represents 1 or 2, and
• wherein a total amount of the hindered phenol compounds and the hindered amine compounds ranges from 0.01 to 7 parts by mass with respect to 100 parts by mass of the resin component in the layer A of the resin layer.