Method for improving antibacterial property of wool by bio-enzymatic method
A bio-enzymatic and antibacterial technology, applied in the fields of biochemical fiber treatment, textile and papermaking, fiber treatment, etc., can solve the problem of inability to impart wool functions, and achieve the effect of safe and environmentally friendly treatment process, mild reaction conditions, and high catalytic efficiency.
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Embodiment 1
[0036] Example 1: The wool selected in this example is all-wool vanillin, and the pretreatment method selected is KMnO 4 For pretreatment, the selected finishing agent is ε-polylysine.
[0037] Take 2.0g wool fabric and pretreat it according to the following process: the wool fabric is dipped in hot water and oxidized with potassium permanganate solution (KMnO 4 4% owf, penetrant 0.5g / L, pH 4.0, temperature 40°C, time 30min, bath ratio 1:20), soaping (45°C, 15min), neutralization cleaning (soda ash 2% owf), rinse with water, Dry at 50℃, decolorize (NaHSO 3 6% owf, 1% HAc mass fraction, temperature 40°C, time 30min, bath ratio 1:20), washed with water and dried.
[0038] The wool fabric after the above pretreatment is treated as follows: the fabric is immersed in a buffer solution containing MTG and ε-polylysine (MTG: 20U / g fabric, ε-polylysine: 3% owf, penetrant 0.5% owf, temperature 45℃, time 2h, bath ratio 1:30, pH 8.0), washed with water and dried.
[0039] The following perfor...
Embodiment 2
[0042] Example 2: The wool selected in this example is full wool gabardine, the selected pretreatment method is DCCA pretreatment, and the selected finishing agent is α-polylysine.
[0043] Take 2.0g wool fabric for pretreatment according to the following process: cold water immersion, DCCA chlorination treatment (DCCA4%owf, penetrant 1g / L, pH 3.5, temperature 25℃, time 20min, bath ratio 1:20), 40℃ warm water Washing and flushing, dechlorination (NaHSO 3 6% owf, pH 4.0, temperature 40°C, time 20min, 1:20), washed with water, adjusted pH value (Tris-HCl pH 8, temperature 30°C, time 15min, bath ratio 1:25), washed and dried.
[0044] The wool fabric after the above pretreatment is treated as follows: the fabric is immersed in a buffer solution containing MTG and α-polylysine (MTG: 30U / g fabric, α-polylysine: 2% owf, penetrant 0.5% owf, temperature 50℃, time 1h, bath ratio 1:20, pH 7.5), washed with water and dried.
[0045] The following performance tests were carried out on the sam...
Embodiment 3
[0048] Example 3: The wool selected in this example is Merino wool top, and the selected pretreatment method is Na 2 SO 3 For pretreatment, the selected finishing agent is ε-polylysine.
[0049] Take 2.0g of wool tops and pretreat them according to the following process: Tops impregnated with reducing solution (Na 2 SO 3 3% owf, pH8.5, temperature 40°C, time 30min, bath ratio 1:20), washed with water and dried.
[0050] Then the pretreated tops are treated as follows: the tops are immersed in a buffer solution containing MTG and ε-polylysine (MTG: 25U / g fabric, ε-polylysine: 3% owf, penetrant 0.5 %Owf, temperature 40℃, time 4h, bath ratio 1:20, pH 8), washed with water and dried.
[0051] The following performance tests were carried out on the samples arranged according to the above process, and the results are shown in Table 3:
[0052] Table 3 Example 3 Antibacterial Finished Fabric Properties
[0053] Inhibitory golden yellow
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