reduced and at a porosity of 140 scfm ft 2 the carpet area where a shade controlling means exists is not colored by any of the sublimable dyes from the transfer sheet in those areas where there is no shade controlling the dye is transferred and covers the full length of the carpet face fibers the shading effect is measured visibly with reference to those areas of the transfer sheet carpet construction that has no shade controlling means and is subject to the same air flow conditions and thus yields the dye transfer of a certain intensity which is considered to be the control intensity shading effects begin to show at a porosity of 208 scfm ft 2 when the shade controlling means is placed in front of the transfer sheet that is on the side of the transfer sheet away from the side of the transfer sheet contacting the face fiber yarns the shading becomes lighter as the porosity of the shade controlling means is reduced and at a porosity of 32 scfm ft 2 the carpet area adjacent the shade controlling means is not colored by the dye again where there was dye transferred there is evidence of the transfer of the dye over the full length of the carpet fibers and the shading.