Papers by Author: Qing Tao Meng

Abstract: There is not a unified division scheme on the lithostratigraphic unit of Zhangjiakou formation from later Jurassic at jibei for a long time, so it makes the divisions more confusion, the establishment of the reasonable stratigraphic sequence and regional stratigraphic correlation has been effected. The Zhangjiakou formation is divided into three lithologic members in turn based on lithology combination of the phase sequence at Zhangjiakou by author through the project of “the study of jibei Mesozoic continental volcanic-sedimentary basin 1:250000 mapping method”. The first section mainly includes lithology combination of weak eruption phase sequence. The second section is main the lithology combination of explosive phase sequence; the third section mainly includes lithology combination of the eruption phase sequence. These three sections respectively represent the stage of the initial outbreak, the large-scale outbreak and a caldera collapse deposition. This division method can reflect volcanic tectonic features, establishing reasonable stratigraphic sequence, this contribute to the study of the history of the volcanic evolution. It can also combine the lithostratigraphic units division and volcanic-sedimentary organically.

Abstract: The effects of different pH values and temperatures on the dyeing behavior of three types of natural pigment (lac dyer red, gardenia yellow, gardenia blue) on wool fabric was determined. The optimal dyeing temperature was found to be 100degC and the optimal pH value was 4 when using the most suitable mordant, aluminium sulfate. After mordant dyeing the fabric colour fastness basically met the requirements.

Abstract: t is pre-mordant dyeing. Dyeing property of Carmine, gardenia yellow and sodium copper chlorophyll on cotton fabrics which were pre-treated by metal mordant (FeSO₄AlCl₃ and ZnCl₂ ) was studied. The reasonable pre-treatment was determined by comparing the color depth (K/S value) of dyed samples. And then, the dyed samples were treated with no-iron finishing resin 931-33 to fix the color. The result shows that the color depth of cotton fabric is greatly improved after determined pre-treatment, and the washing fastness is improved after color fixing.