HG/T 4448-2012 Determination of polymer emulsion minimum film forming temperature (MFFT) in Spinning & weaving dyeing and finishing aids specifies a specific method for evaluating the polymer emulsion minimum film forming temperature (MFFT) in Spinning & weaving dyeing and finishing aids. This standard applies to polymer emulsion products such as fabric printing gluing agents and coating finishing agents. By emulsion Spreader in the sample tank at a specific temperature layer and drying with drying air or drying agent, to determine the minimum temperature required for emulsion to form a continuous uniform, transparent film. Spreader and measurement are carried out on the basis of the metal plate to ensure the accuracy and repeatability of the film formation temperature. This standard helps to select suitable emulsion aids in the processing of Spinning & weaving products to improve the Spreader effect and product mass.