Multi-color printing method of natural dyes
A technology of natural dyes and printing methods, applied in the field of multi-color printing of natural dyes, to achieve the effect of reducing varieties, simple process, and processing energy-saving and emission-reducing products
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Embodiment 1
[0020] A multi-color printing method of natural dyes, comprising the following steps in turn:
[0021] (1) Low-temperature plasma pretreatment: power 5-10 kW, speed 5-10 m / min, atmosphere: air;
[0022] (2) The fabric is printed with alkaline protein paste, the composition of the printing paste: lime, soybean flour, water, the ratio is 1:3-4:5-6. Evenly blended, through the digital printing nozzle, the pattern is controlled by the computer for printing;
[0023] (3) Low temperature drying (60°C-90°C)
[0024] (4) Preparation of natural dye solution: extract 80g / L dye solution, add hydrochloric acid to adjust pH to 5.
[0025] The dye is extracted from the traditional Chinese medicine Sappanwood, the extraction method:
[0026] 8 parts by weight of sumac, 2 parts by weight of sodium hydroxide, and 100 parts by weight of water, add water to the sumac, then add sodium hydroxide, soak for a period of time, filter after boiling for 30 minutes, and make 80g / L sumac extract .
...
Embodiment 2
[0032] (1) Low-temperature plasma pretreatment: power 5-10 kW, speed 5-10 m / min, atmosphere: air;
[0033] (2) The fabric is printed with alkaline protein paste, the composition of the printing paste: lime, soybean flour, water, the ratio is 1:3-4:5-6. Evenly blended, through the digital printing nozzle, the pattern is controlled by the computer for printing.
[0034] (3) Low temperature drying (60°C-90°C)
[0035] (4) Preparation of natural dye solution: 60g / L extracted dye solution, add hydrochloric acid to adjust pH to 3.
[0036] The dye is extracted from the traditional Chinese medicine madder, the extraction method:
[0037] 6 parts by weight of madder, 3 parts by weight of sodium carbonate, and 100 parts by weight of water. Add water and sodium carbonate to the madder. After soaking for a period of time, filter after boiling for 30 minutes to prepare a 60 g / L extract of madder.
[0038] (5) Dye the dried printed fabric in the dye solution at 80-90°C for 10-30min.
...
Embodiment 3
[0043] (1) Low-temperature plasma pretreatment: power 5-10 kW, speed 5-10 m / min, atmosphere: air;
[0044] (2) The fabric is printed with alkaline protein paste, the composition of the printing paste: lime, soybean flour, water, the ratio is 1:3-4:5-6. Evenly blended, through the digital printing nozzle, the pattern is controlled by the computer for printing.
[0045] (3) Low temperature drying (60°C-90°C)
[0046] (4) Preparation of natural dye solution: extract 100g / L of dye solution, add acetic acid to adjust pH to 6.
[0047] The dye is extracted from the leaves of the traditional Chinese medicine Bamboo, the extraction method:
[0048] 10 parts by weight of bamboo leaves, 2 parts by weight of sodium hydroxide, and 100 parts by weight of water, add water to the leaves of light bamboo, then add sodium hydroxide, soak for a period of time, filter after boiling for 30min, and make 100g / L of light bamboo leaves extract.
[0049] (5) Dye the dried printed fabric in the dye ...
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