# Do materials approach black body behavior as temperature increases

I have emittance curves of a material (that cannot be shared) that show an increase in emittance values over a wide wavelength range. As the temperature increases, the value for emittance increases, and the region in which the emittance is close to 1 increases spectrally.

So, my question is: Do materials approach blackbody emittance ($$\epsilon = 1$$) for all wavelengths as the temperature increases?