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Manufacturing method of blended yarn of ambary and aramid fibers
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A technology of blended yarn and manufacturing method, applied in the directions of textiles and papermaking, yarn, fiber processing, etc., can solve the difficulty of blending the roughness, softness and stiffness between fibers, and the blended yarn of kenaf fiber and aramid fiber has not yet been found The problems of large differences in wire and physical properties, etc., can achieve the effect of shortening the processing process, low price, and good fiber antistatic and chemical resistance.
Active Publication Date: 2015-03-25
TIANJIN POLYTECHNIC UNIV
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However, the physical properties of kenaf fiber and aramid fiber are quite different, and the differences in fineness, roughness, softness and stiffness between fibers make blending more difficult.
In addition, the kenaf fiber has no natural curl, the cohesion between the fibers is poor, and the fiber is brittle and hard. The carding fiber is seriously damaged in the cotton-type flat carding machine, so it is not suitable for forming a web.
Therefore, within the scope of the applicant's search, no relevant literature reports have been found on the blended yarn of kenaf fiber and aramid fiber
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
[0039] A kenaf / aramid 30 / 70 blended yarn of 60 tex was spun.
[0040] (1) Kenaf pre-treatment
[0041] ① Alkali treatment, using sodium hydroxide with a bath ratio of 1:20 and a weight concentration of 8%, treat the kenaf fibers at 90°C for 3 hours, then wash with warm water until neutral; Dry for 1 hour to remove most of the moisture carried by the fibers;
[0042] 2. softening treatment, using a softener (TDSL-2005A, commercially available) of 5% of the dry weight of the fiber to be prepared into a solution with a bath ratio of 1:20, and soaking the kenaf fiber in the solution for 30 minutes at a temperature of 30°C. After pressing dry, dry at 90°C for 1 hour, then cross-link at 135°C for 4 minutes, and finally dry at 90°C;
[0043] ③ Shorten the fiber, shorten the dried kenaf fiber to 50mm, to meet the requirements of cotton spinning equipment for fiber length;
[0044] 4. spray carding agent and seal, spray the carding agent (TFD1212, commercially available product) of ...
Embodiment 2
[0070] A kenaf / aramid 35 / 65 blended yarn of 60 tex was spun.
[0071] (1) Kenaf pre-treatment
[0072] ① Alkali treatment, using sodium hydroxide with a bath ratio of 1:20 and a weight concentration of 8%, treat the kenaf fibers at 90°C for 3 hours, then wash with warm water until neutral; Dry for 1 hour to remove most of the moisture carried by the fibers;
[0073] 2. softening treatment, using a softener (TDSL-2005A, commercially available) of 5% of the dry weight of the fiber to be prepared into a solution with a bath ratio of 1:20, and soaking the kenaf fiber in the solution for 30 minutes at a temperature of 30°C. After pressing dry, dry at 90°C for 1 hour, then cross-link at 135°C for 4 minutes, and finally dry at 90°C;
[0074] ③ Shorten the fiber, shorten the dried kenaf fiber to 50mm, to meet the requirements of cotton spinning equipment for fiber length;
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Abstract
The invention discloses a manufacturing method of blended yarn of ambary and aramid fibers. Weight ratio of the raw materials of the blended yarn adopted by the manufacturing method is: 30% to 35% of ambary with the length of 45 mm to 50 mm, and 70% to 65% of aramid fibers with the length of 45 mm to 50 mm. A technological process is as follows: mellowing, fiber cutting short, carding agent spraying and sealing are carried out on the ambary, meanwhile carding agent spraying and sealing are carried out on the aramid fibers, the ambary and the aramid fibers are mixed and are processed through opening, carding, drawing, roving and spinning in sequence, and the blended yarn of the ambary and the aramid fibers is obtained. The carding adopts a wool type roller carding machine, and other equipment is cotton-type yarn spinning equipment. The technology of the mellowing of the ambary is designed as the technology of 'alkali treatment + softening agent treatment'. The technology of the carding process adopts the wool type roller carding machine to card mixed fibers, and the rotating speed of the big cylinder of the wool type roller carding machine is 95 r / min to 105 r / min.
Description
technical field [0001] The invention belongs to the textile field, in particular to a method for manufacturing kenaf and aramid blended yarn. Background technique [0002] Kenaf (also known as kenaf) is an annual herbaceous bast fiber crop, which has been widely promoted because of its high yield, strong climate adaptability and easy planting. my country is one of the main producers of kenaf, its output is second only to India. Kenaf fiber has low density, high specific strength, fast moisture absorption and water dissipation, good electrical conductivity, and low price. However, due to the high lignin content of kenaf fiber, the fiber is rough, stiff, and poor in spinnability. Currently, most of it is used to process sacks and sacks. , hemp rope and other low-value-added products, and with the wide application of chemical fibers such as polypropylene and other raw materials, traditional kenaf fabrics are gradually being replaced by chemical fiber fabrics and the prospects ...
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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Application Information
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