Wet-state dyeing finishing and fixation method for leathers based on zirconium-aluminum-titanium complex
A complex, zirconium-aluminum-titanium technology, used in dyeing, leather impregnation, small raw hide/large hide/leather/fur treatment, etc., can solve the problem of weak dye binding, low wet rubbing fastness, and high waste liquid chromaticity problem, to achieve the effect of easy realization of the overall process, reduction of the chromaticity of waste dyeing liquid, and simple overall process
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Embodiment 1
[0020] Embodiment 1 of the present invention provides a method for dyeing and fixing leather in wet state based on zirconium-aluminum-titanium complex, which includes the following process steps:
[0021] Step 1, pre-dyeing and finishing wet crust leather → retanning → dyeing → fatliquoring, wherein the pre-dyeing and finishing treatment includes batching, squeezing and stretching, smoothing, rinsing and neutralization, the wet crust leather For pure vegetable tanned leather;
[0022] Step 2. Add 1% zirconium-aluminum-titanium complex after the conventional dyeing and fatliquoring process, rotate for 20 minutes, and drain directly;
[0023] Step 3. Add 200% water with a water temperature of 50-52°C in the drum, BlackNB (Yongguang Dyestuff Co., Ltd.) 0.8%, turn for 15min, add 1% of zirconium aluminum titanium complex, turn for 15min, then add cationic oil KSP1% , turn for 15min;
[0024] Step 4, Drain, add 200% water at a temperature of 26°C, rotate for 10 minutes, drain, and...
Embodiment 2
[0027] Embodiment 2 of the present invention provides another method for wet-state dyeing and fixing of leather based on zirconium-aluminum-titanium complexes, which includes the following process steps:
[0028] Step 1, pre-dyeing and finishing wet crust leather → retanning → dyeing → fatliquoring, wherein the pre-dyeing and finishing treatment includes batching, squeezing and stretching, smoothing, rinsing and neutralization, the wet crust leather is metal-free bond tanned leather;
[0029] Step 2. Add 1% zirconium-aluminum-titanium complex after the conventional dyeing and fatliquoring process, rotate for 20 minutes, and drain directly;
[0030] Step 3. Add 200% water with a water temperature of 50-52°C in the drum, 0.5% BlackNB (Yongguang Dyestuff Co., Ltd.), turn it on for 10 minutes, add 0.5% zirconium-aluminum-titanium complex, turn it on for 10 minutes, add BlackNB0.5%, Turn for 10 minutes, add 0.5% zirconium-aluminum-titanium complex, turn for 10 minutes, then add ca...
Embodiment 3
[0034] Embodiment 3 of the present invention provides another method for wet-state dyeing and fixing of leather based on zirconium-aluminum-titanium complexes, which includes the following process steps:
[0035] Step 1, pre-dyeing and finishing wet crust leather → retanning → dyeing → fatliquoring, wherein the pre-dyeing and finishing treatment includes batching, squeezing and stretching, smoothing, rinsing and neutralization, the wet crust leather is semi-vegetable tanned leather;
[0036] Step 2. Add 0.5% zirconium-aluminum-titanium complex after the conventional dyeing and fatliquoring process, rotate for 20 minutes, and drain directly;
[0037] Step 3. Add 200% of water with a water temperature of 50-52°C in the drum, 1% of BlackNB (Yongguang Dyestuff Co., Ltd.), and turn for 10 minutes, add 0.5% of zirconium-aluminum-titanium complex, turn for 10 minutes, and then add cationic oil GSO. 5%, VM0.5%, turn 10min;
[0038] Step 4, Drain, add 200% water at a temperature of 2...
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