Digital ink-jet printing method
A printing method, digital inkjet technology, applied in the direction of dyeing method, surface/boundary effect, instrument, etc., can solve the problem of general anti-seepage effect and achieve the effect of saving consumption
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Embodiment 1
[0012] A digital inkjet printing method, comprising the steps of: measuring the permeation rate of the fabric, measuring the surface tension of the dye, setting the piezoelectric pressure of the printing nozzle according to the permeation rate of the selected fabric and the surface tension value of the selected dye to Control the ink injection volume of the print head, inkjet printing, post-press drying, steaming, washing, drying. The determination of the fabric permeability is as follows: draw a sample by computer, use several pieces of the same fabric sample with 20 dots each, and the diameter of each dot is a standard value, and then print the pattern on the fabric by a digital printing machine; After drying at room temperature, treat them separately, and use image analysis software such as image-pro or CPAS to obtain the area of the ink dots in the spot sample, and use the average area value of the 20 ink spot samples as the evaluation index of the degree of bleeding; the...
Embodiment 2
[0037]The difference from Example 1 is that the fabric is pretreated before the measurement of the permeability of the fabric, wherein the weight fraction of each component of the pretreatment liquid is: 2% paste A-9, 2% SW-MN -08, 3.5% glycerin, 4.5% urea, 10% sodium sulfate, 0.4% weak oxidizing agent, 0.1% tartaric acid and 0.5% calcium carbonate powder; the paste A-9, SW-MN- The preparation steps of 08 are: weigh the paste A-9 and SW-MN-08, and add the weighed paste A-9 and SW-MN-08 into soft water while stirring, and then Continue to stir until uniform; the preparation steps of the pretreatment liquid are: calculate the amount of urea required according to the amount of the treatment liquid and put it into warm water, then add glycerin, sodium sulfate and oxidant, stir until completely dissolved and then gradually Add the required paste, and keep stirring until the paste swells and there are no lumps. During the process, the temperature of the pretreatment liquid does not ...
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