Preparation method of short natural bamboo fibers
A technology of raw bamboo fiber and bamboo fiber bundle, which is applied in fiber treatment, fiber mechanical separation, bast fiber production by chemical method, etc., can solve the problems of heavy pollution, high cost, low yield of preparation method, etc., and achieve light waste water pollution, low cost effect
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Embodiment 1
[0030] The preparation method of short bamboo raw fiber, comprises the steps:
[0031] Step 1, slicing: slicing the bamboo from which green bamboo, bamboo knots and yellow bamboo have been removed, the length of the bamboo slices is 3-5 cm, and the thickness is 2-3 mm.
[0032] Step 2, softening treatment of bamboo slices: place the bamboo slices in a cooking pot at 100° C. and a pressure of 2 MPa for hot water pretreatment for 45 minutes. The ratio of wood chips to water is 1 kg of wood chips corresponds to 3 liters of water.
[0033] Step 3, bamboo chip tearing treatment: the softened bamboo chip is subjected to mechanical tearing treatment with an extrusion tearing machine with a compression ratio of 4 to obtain bulky bamboo fiber bundles.
[0034] Step 4. Enzyme treatment: place the bulky bamboo fiber bundles in a mixture of laccase and alkaline pectinase at a temperature of 55°C and pH 7.5 for 90 minutes. The amount of laccase is 15IU / kg dry fiber, alkali The dosage of ...
Embodiment 2
[0040] The preparation method of short bamboo raw fiber, comprises the steps:
[0041] Step 1, slicing: slicing the bamboo from which green bamboo, bamboo knots and yellow bamboo have been removed, the length of the bamboo slices is 3-5 cm, and the thickness is 2-3 mm.
[0042] Step 2, softening treatment of bamboo slices: place the bamboo slices in a cooking pot with a high temperature of 130° C. and a pressure of 2.5 MPa for hot water pretreatment for 60 minutes. The ratio of wood chips to water is 1 kg of wood chips corresponds to 3 liters of water.
[0043] Step 3, bamboo chip tearing treatment: the softened bamboo chip is subjected to mechanical tearing treatment with a screw extrusion tearing machine with a compression ratio of 4 to obtain bulky bamboo fiber bundles.
[0044]Step 4. Enzyme treatment: place the bulky bamboo fiber bundles in a mixed solution of laccase and alkaline pectinase at a temperature of 60°C and pH 8 for 60 minutes. The dosage of laccase is 30IU / k...
Embodiment 3
[0050] The preparation method of short bamboo raw fiber, comprises the steps:
[0051] Step 1, slicing: slicing the bamboo from which green bamboo, bamboo knots and yellow bamboo have been removed, the length of the bamboo slices is 3-5 cm, and the thickness is 2-3 mm.
[0052] Step 2, softening treatment of bamboo slices: place the bamboo slices in a cooking pot with a high temperature of 120° C. and a pressure of 3 MPa for hot water pretreatment for 75 minutes. The ratio of wood chips to water is 1 kg of wood chips corresponds to 3 liters of water.
[0053] Step 3, bamboo chip tearing treatment: the softened bamboo chip is subjected to mechanical tearing treatment with a screw extrusion tearing machine with a compression ratio of 4 to obtain bulky bamboo fiber bundles.
[0054] Step 4. Enzyme treatment: place the bulky bamboo fiber bundles in a mixed solution of laccase and alkaline pectinase at a temperature of 50°C and pH 7.0 for 120 minutes. The amount of laccase is 10IU...
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