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A ramie fiber modification technology, applied in the field of ramie fiber modification, can solve problems such as skin itching, easy wrinkling and fluffing of fabrics, and damage to antibacterial components of ramie fiber ultra-fine microporous structure, so as to improve fineness and eliminate itching Sensitive effect
Inactive Publication Date: 2017-12-08
厦门盛方生态技术集团有限公司
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[0002] The moisture absorption and air permeability of ramie fiber is about 3-5 times that of cotton fiber. It has the functions of antibacterial, breathable, cool, anti-corrosion, mildew-proof, and sweat-absorbing. It is rough and has no curl, which leads to poor spinnability of ramie fiber, and its fabric is easy to wrinkle and fluff, and it will cause skin itching when it comes into contact with the skin
[0003] In order to improve the spinnability and other defects of ramie fiber, a lot of research has been carried out at home and abroad, such as alkali modification method, sulfonation method, alkylation method, etc. These methods can improve the tensile breaking strength of ramie fiber to a certain extent. , fiber dyeing performance, collusion strength and other properties, but it also leads to a certain degree of damage to the special ultra-fine microporous structure inside the ramie fiber and the antibacterial components contained in it, thus affecting the antibacterial and antibacterial, deodorizing and adsorption of the ramie fiber. Moisture absorption and breathability
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0018] A modification method of ramie fiber, comprising the steps:
[0019] Step 1, mix cottonseed hull ash, straw ash and sodium hydroxide in a weight ratio of 10:6:1.5, add water 12 times the total weight of the three, and boil to prepare a modified solution;
[0020] Step 2, adding ramie fibers into the modified solution, completely submerging, and cooking for 3 hours;
[0021] In step 3, the ramie fiber is taken out from the modified solution, washed with clear water, and air-dried naturally.
Embodiment 2
[0023] Step 1, mix cottonseed hull ash, straw ash and sodium hydroxide in a weight ratio of 10:6:1.5, add water 12 times the total weight of the three, and boil to prepare a modified solution;
[0024] Step 1-1, put the ramie fiber into a 2.5MPa airtight space filled with nitrogen, then deflate within 40s and return to the normal pressure state;
[0025] Step 2, adding ramie fibers into the modified solution, completely submerging, and cooking for 3 hours;
[0026] In step 3, the ramie fiber is taken out from the modified solution, washed with clear water, and air-dried naturally.
[0027] The modified ramie fiber obtained in Example 1 and Example 2 was tested for physical properties with the raw material ramie fiber under the same test conditions, as shown in Table 1.
[0028] Table I
[0029]
[0030] As can be seen from Table 1, after the modification of Example 1, the fineness of ramie fiber becomes thinner, the strength increases slightly, and the elongation a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention relates to a modification method of ramie fibers. The modification method comprises the following steps: step 1, proportioning cottonseed shell ash, rice straw ash and sodium hydroxide according to a weight ratio of 10 to (5-8) to (1-2) to obtain a mixture, adding the mixture into water which is 10-15 times the total weight of the mixture, boiling and preparing a modified solution; step 2, adding the ramie fibers into the modified solution to be completely immersed, and cooking for 2-4 hours; and step 3, taking the ramie fibers out of the modified solution, washing the ramie fibers with clear water, and naturally drying the ramie fibers in air. Compared with the prior art, the method disclosed by the invention has the advantages that characteristics such as degree of crystallinity and degree of orientation of the ramie fibers are improved, a prodding and itching feeling generated when the ramie fibers are in contact with a human body is eliminated to certain extent, unique fiber hole cavity structures of the ramie fibers are not damaged, and grooved cavities in the middle of the fibers are not damaged, so that characteristics such as bacteria resistance and bacteriostasis, deodorization and adsorption, moisture absorption and ventilation, mildew prevention and wear resistance of the ramie fibers can be kept.
Description
technical field [0001] The invention relates to a modification method of ramie fiber. Background technique [0002] The moisture absorption and air permeability of ramie fiber is about 3-5 times that of cotton fiber. It has the functions of antibacterial, breathable, cool, anti-corrosion, mildew-proof, and sweat-absorbing. The ramie fiber is rough and has no crimp, which leads to poor spinnability, and its fabric is easy to wrinkle and fluff, and it will cause skin itching when it comes into contact with the skin. [0003] In order to improve the spinnability and other defects of ramie fiber, a lot of research has been carried out at home and abroad, such as alkali modification method, sulfonation method, alkylation method, etc. These methods can improve the tensile breaking strength of ramie fiber to a certain extent. , fiber dyeing performance, collusion strength and other properties, but it also leads to a certain degree of damage to the special ultra-fine microporous st...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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