Color absorption sheet and manufacture and using methods thereof
A technology of color-absorbing sheets and cloth sheets, which is applied in the field of color-absorbing sheets, can solve the problems of wasting laundry time, increasing laundry costs, and waste, and achieves the effects of saving time, improving laundry efficiency, and reducing costs
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[0017] The color-absorbing sheet of the present invention includes a cloth sheet, which contains an active solid cationic etherification agent 2,3-epoxypropyltrimethylammonium chloride (the weight is 30wt%-60wt% of the viscose weight) on the cloth sheet , Caustic soda (the weight is 2wt%-6wt% of viscose weight), viscose surplus.
[0018] The preparation method of the color-absorbing sheet of the present invention comprises the following steps:
[0019] (1) Active solid cationic etherifying agent 2,3-epoxypropyltrimethylammonium chloride (weight is 30wt%-60wt% of viscose weight), caustic soda (weight is 2wt%-60wt% of viscose weight) 6wt%), mix the remaining amount of viscose, heat up to 60-100°C for the first time, keep warm for 60-90 minutes, drain and clean for 1-3 times for the first time, add oxalic acid (the weight is 1-5% of the viscose weight ), then raise the temperature to 60-100°C for the second time, keep the temperature for 15-60 minutes, drain and wash for the sec...
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