Method for preparing long-acting antibacterial household product from haloamine-aminated composite modified cotton fibers
A composite modification and cotton fiber technology, applied in biochemical fiber treatment, fiber treatment, plant fiber, etc., can solve the problems of human body harm, loss of fabric's excellent hand affinity, insufficient fastness, etc., and achieve improved reactivity and high-efficiency antibacterial finishing , the effect of reducing crystallinity
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[0029] Example 1
[0030] A method for producing long-lasting antibacterial household items by using haloamine-aminated composite modified cotton fiber, which is characterized in that it comprises the following steps:
[0031] (1) Process of pretreating cotton fiber with sodium hydroxide-urea water system:
[0032] Add water to sodium hydroxide and urea with a mass ratio of 8:14, stir for 20 minutes to dissolve evenly, put it in a low-temperature and constant-temperature water bath pre-cooled to -4°C, add cotton fiber and stir for pretreatment, filter with a 100 mesh filter bag, Wash with distilled water until the filtered water is neutral, divide equally into 3 parts for later use;
[0033] (2) Cotton fiber grafted water-soluble haloamine precursor:
[0034] Soak 1 / 3 of the pretreated cotton fiber obtained in (1) in the grafting solution for 15 minutes to soak, then dry and solidify for 1 hour in a 78-82°C blast drying oven, and then soak in 0.5% detergent for 15 minutes. Rinse with ...
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[0045] Example 2
[0046] A method for producing long-lasting antibacterial household items by using haloamine-aminated composite modified cotton fiber, which is characterized in that it comprises the following steps:
[0047] (1) Process of pretreating cotton fiber with sodium hydroxide-urea water system:
[0048] Add water to sodium hydroxide and urea with a mass ratio of 8:14, stir for 25 minutes to dissolve evenly, put it in a low-temperature and constant-temperature water bath, pre-cool to -4°C, add cotton fiber and stir for pretreatment, filter with a 100 mesh filter bag, Wash with distilled water until the filtered water is neutral, divide equally into 3 parts for later use;
[0049] (2) Cotton fiber grafted water-soluble haloamine precursor:
[0050] Soak 1 / 3 of the pretreated cotton fiber obtained in (1) in the grafting solution for 20 minutes to soak, then dry and solidify for 2 hours in a 78-82°C blast drying oven, and then soak in 0.5% detergent for 20 minutes. Rinse with ...
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