Preparation method and application of China hemp fiber
A technology of hemp fiber and hemp, which is applied in the field of hemp fiber preparation, to achieve the effects of preventing diaper rash, environmental protection and resource saving
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Embodiment 1
[0038] A preparation method of hemp fiber, comprising the following steps:
[0039] 1) Peeling and soaking: peel the hemp to obtain peeled hemp, then soak the peeled hemp in a caustic soda solution with a weight ratio of 1:0.2 for 12 hours to obtain a soaking solution;
[0040] 2) Degumming: adding a hydrochloric acid solution with a volume ratio of 1:0.05 and a concentration of 40% to the soaking liquid, cooking at 95-100°C for 8 hours, and repeated cooking for 5 times to obtain finer hemp fibers;
[0041] 3) Drying: Ventilate and dry the finer hemp fibers at 60°C for 2 to 4 hours to obtain dried hemp fibers;
[0042] 4) Screening: Screen the dried hemp fibers, and collect and utilize those whose fineness reaches the requirement of 2.0D; degumming the thicker fibers until they meet the required fineness;
[0043] Promptly obtain described hemp fiber.
[0044] The unit of weight used in this embodiment is kilogram, and may also be gram.
[0045] All raw materials described ...
Embodiment 2
[0048] This embodiment is an application of the hemp fiber described in Example 1, the hemp fiber can be used to manufacture diapers, and the preparation method of the hemp fiber diapers comprises the following steps:
[0049] A. Preparation of hemp fiber:
[0050] 1) Peeling and soaking: peel the hemp to obtain peeled hemp, then soak the peeled hemp in a caustic soda solution with a weight ratio of 1:0.2 for 12 hours to obtain a soaking solution;
[0051] 2) Degumming: adding a hydrochloric acid solution with a volume ratio of 1:0.05 and a concentration of 40% to the soaking liquid, cooking at 95-100°C for 8 hours, and repeated cooking for 5 times to obtain finer hemp fibers;
[0052] 3) Drying: Ventilate and dry the finer hemp fibers at 60°C for 2 to 4 hours to obtain dried hemp fibers;
[0053] 4) Screening: Screen the dried hemp fibers, and collect and utilize those whose fineness reaches the requirement of 2.0D; degumming the thicker fibers until they meet the required f...
Embodiment 3
[0067] This embodiment is an improvement made on the basis of Embodiment 1. For the same part as Embodiment 1 in this embodiment, please refer to the content disclosed in Embodiment 1 for understanding, and the content disclosed in Embodiment 1 should also be used as this embodiment. The content of the example will not be repeated here.
[0068] The preparation method of the hemp fiber of the present embodiment comprises the following steps:
[0069] 1) Peeling and soaking: peel the hemp to obtain peeled hemp, then soak the peeled hemp in a caustic soda solution with a weight ratio of 1:0.2 for 12 hours to obtain a soaking solution;
[0070] 2) Degumming: adding a hydrochloric acid solution with a volume ratio of 1:0.05 and a concentration of 40% to the soaking liquid, cooking at 95-100°C for 8 hours, and repeated cooking for 5 times to obtain finer hemp fibers;
[0071] 3) Drying: Ventilate and dry the finer hemp fibers at 60°C for 2 to 4 hours to obtain dried hemp fibers; ...
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