A kind of clean production method of tpo modified tpu superfine fiber synthetic leather
An ultra-fine fiber, clean production technology, applied in textiles and papermaking, etc., can solve the problems of high cost and small hardness adjustment range, achieve low cost, wide hardness adjustment range, hydrolysis resistance and good hand feel Effect
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Embodiment 1
[0030] A clean production method of TPO modified TPU superfine fiber synthetic leather, comprising the following steps:
[0031] (1) With the island-fixed superfine fiber synthetic leather base cloth as the base material, the method of continuous dipping is used to carry out hydrophilic treatment, specifically the technology of continuous dipping, first the base cloth is passed through an aqueous solution of triethanolamine with a mass fraction of 10%, Roll the liquid again to make the liquid content of the base cloth 50%, and dry at 120°C; then, pass through the dispersion of hexamethylene diisocyanate trimer (HDI trimer) with a mass fraction of 5% The HDI trimer is dispersed in water), and the liquid is rolled again so that the liquid content of the base cloth is 50%, and dried at 120°C to obtain a hydrophilic superfine fiber synthetic leather base cloth;
[0032] (2) Using a calendering production line, put the surface layer material into a high-speed kneader and stir for 5...
Embodiment 2
[0036](1) Use the non-island-fixed superfine fiber synthetic leather base cloth as the base material, and carry out hydrophilic treatment by means of continuous dipping. Specifically, the technology of continuous dipping is adopted. First, the base cloth is passed through an aqueous solution of triethanolamine with a mass fraction of 15%. , and then squeeze the liquid to make the liquid content of the base cloth 50%, and dry at 120°C; then, pass through the dispersion of hexamethylene diisocyanate trimer (HDI trimer) with a mass fraction of 10% ( Disperse the HDI trimer in water), then roll the liquid to make the liquid content of the base cloth 50%, and dry at 120°C to obtain a hydrophilic superfine fiber synthetic leather base cloth;
[0037] (2) Using a calendering production line, put the surface layer materials into a high-speed kneader and stir for 10 minutes. When the temperature of the materials reaches 90°C, put them into the internal mixer after discharging, and raise...
Embodiment 3
[0041] (1) With the split-type superfine fiber synthetic leather base cloth as the base material, adopt the mode of continuous dipping to carry out hydrophilic treatment, specifically adopt the technology of continuous dipping, at first the base cloth is passed through the triethanolamine aqueous solution with a mass fraction of 12%, and then Squeeze the liquid to make the liquid content of the base cloth 50%, and dry at 120°C; then, pass through the dispersion of hexamethylene diisocyanate trimer (HDI trimer) with a mass fraction of 8% (HDI trimer) The trimer is dispersed in water), and the liquid is rolled again to make the liquid content of the base cloth 50%, and dried at 120° C. to obtain a hydrophilic superfine fiber synthetic leather base cloth;
[0042] (2) Using a calendering production line, put the surface layer materials into a high-speed kneader and stir for 7 minutes. When the temperature of the materials reaches 95°C, put them into the internal mixer after discha...
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