BASE MATERIAL FOR FIXING BELT, FIXING BELT, FIXING DEVICE, AND IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To provide a base material for a fixing belt that eliminates a concern about duration reliability even when the diameter is further reduced and the fixing speed is further increased, a fixing belt having such a base material for a fixing belt, a fixing device, and an image forming apparatus.SOLUTION: There is provided an endless belt-like base material for a fixing belt formed of nickel as a main component, where projections provided projecting from the inner peripheral surface are continuously arranged in the circumferential direction at equal pitches along the inner peripheral surface; the height of the projections from the inner peripheral surface is 0.6 μm or more; and the pitch is 1.2 mm or less. A base material for a fixing belt is provided.SELECTED DRAWING: Figure 6 【課題】さらなる小径化及び定着速度の高速化を実施したときにも、耐久信頼性に懸念が生じる恐れのない定着ベルト用基材、このような定着ベルト基材を有する定着ベルト、定着装置、および、画像形成装置を提供する。【解決手段】ニッケルを主成分として形成されている無限ベルト状の定着ベルト用基材において、内周面から突設された凸条部が前記内周面に沿って等しいピッチで周方向に連続して配置され、前記凸条部の前記内周面からの高さが０．６μｍ以上であり、前記ピッチが１．２ｍｍ以下である定着ベルト用基材。定着ベルト用基材。【選択図】図６