Pretreatment liquid for direct injection of polyester fiber through dispersive ink and direct injection digital printing process
A technology of pretreatment liquid and dispersing ink, which is applied in the fields of dyeing, textile and paper making, and can solve the problems of high price and high cost of pretreatment agent
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Embodiment 1
[0045] Digitally print polyester fabrics by following these steps:
[0046] (1) Preparation of pretreatment liquid: the pretreatment liquid contains: 0.3 parts by mass of polyacrylic acid polymer material, the polyacrylic acid polymer material in this embodiment is sodium polyacrylate, 9 parts by mass of anhydrous Sodium dihydrogen phosphate, 3 parts by mass of sodium chloride, 87.7 parts by mass of deionized water, a viscosity of 150mPa·s, and a pH of 4.5;
[0047] (2) Fabric pretreatment: use the prepared pretreatment solution to pad and sizing the polyester fabric with a padding sizing machine, with a surplus rate of 85wt%, and then dry it at 90°C for 1.5min;
[0048] (3) Use the digital printing machine to directly spray the drawing pattern with dispersing ink on the pretreated polyester fabric, and then dry it at 75°C for 1.5min;
[0049] (4) High-temperature steaming and baking, the baking temperature is 180°C, and the baking time is 7 minutes.
[0050] (5) Post-washin...
Embodiment 2
[0058] Digitally print polyester fabrics by following these steps:
[0059] (1) Preparation of pretreatment liquid: the pretreatment liquid contains: 0.5 parts by mass of polyacrylic acid polymer material, the polyacrylic acid polymer material in this embodiment includes sodium polyacrylate, and the polyacrylic acid polymer material is high The molecular material also includes potassium polyacrylate, 9 parts by mass of anhydrous sodium dihydrogen phosphate, 3 parts by mass of sodium chloride, and 87.5 parts by mass of deionized water, with a viscosity of 210 mPa·s and a pH of 4.5;
[0060] (2) Fabric pretreatment: use the prepared pretreatment solution to pad and sizing the polyester fabric with a padding sizing machine, with a scrap rate of 85wt%, and then bake at 90°C for 1.5min;
[0061] (3) Use the digital printing machine to directly spray the drawing pattern and disperse ink on the pretreated polyester fabric, and then dry it at 75°C for 1.5min;
[0062] (4) High-temper...
Embodiment 3
[0066] Digitally print polyester fabrics by following these steps:
[0067] (1) Preparation of pretreatment liquid: the pretreatment liquid contains: 0.2 parts by mass of sodium polyacrylate, 9 parts by mass of anhydrous sodium dihydrogen phosphate, 3 parts by mass of sodium chloride, and 87.8 parts by mass of deionized water , the viscosity is 110mPa·s, and the pH is 4.5;
[0068] (2) Fabric pretreatment: use the prepared pretreatment solution to pad and sizing the polyester fabric with a padding sizing machine, with a surplus rate of 60wt%, and then bake at 85°C for 1.5min;
[0069] (3) Use the digital printing machine to directly spray the drawing pattern and disperse ink on the pretreated polyester fabric, and then dry it at 75°C for 1.5min;
[0070] (4) High-temperature steaming and baking, the baking temperature is 180°C, and the baking time is 7 minutes.
[0071] (5) Post-washing treatment: two washes with water at room temperature and then reduction cleaning, the red...
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