Method for producing ramie high grade folded yarn

A production method and ramie technology are applied in the production field of ramie high-strand yarns, which can solve the problems of limited application of ramie products, high fiber rigidity, strong itchiness of the fabric, etc., and achieve the reduction of spinnable fineness, high production efficiency, The effect of improving spinnability

Inactive Publication Date: 2009-06-03
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because of the high rigidity, stiffness and lack of flexibility of the fiber, the yarn count is low and the hairiness is high. During conventional spinning, the spinnable count is low (36-4), and the fabric woven has a strong itching feeling, causing ramie The application of the product is limited
For a long time, people have devoted themselves to the research of high-branching of ramie yarn, but due to the limitation of raw materials and spinning technology, the progress is limited. Spinning, weaving into fabrics and dissolving vinylon in the finishing process, the number of ramie yarns in the cloth can reach 300
But there is following problem in existing method: although the count number of ramie yarn in the woven fabric is very high, can't make independent high-count ramie yarn (thread), and after water-soluble vinylon recedes, the density and strength of ramie fabric Very low, can only be used to make scarves, etc., not fabrics for clothing, etc.
[0003] Due to the existence of the above-mentioned problems, the quality and the variety of the products produced by the method of existing ramie spinning high-count yarn (thread) are limited, so that ramie can only spin thicker yarns and weave thicker fabrics, which to a large extent It limits the promotion and application of ramie products with good moisture absorption and air permeability, and is suitable for summer fabrics, and also restricts the development of ramie industry.

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Adopt the present invention to spin the ramie strand of 100 common branch / 2, main technical process is: the twist coefficient that ramie fiber 30wt% and 30 ℃ water-soluble vinylon fiber 70wt% adopts conventional method to be spun into 13.33tex is 80 The blended single yarn, wherein the mixing method is that the ramie roving and the water-soluble vinylon filament are mixed on the spinning frame (in the mixing process on the spinning frame, the distance between the ramie roving and the water-soluble vinylon filament is 8mm), and then the single yarn is ply Finally, the vinylon was removed in water at 30°C for 6 hours. After the vinylon was completely removed, it was washed with water and dried at 50°C for 6 hours to obtain ramie strands with a fineness of 50 metric and a twist coefficient of 100. Its quality parameters are shown in the table below:

[0022]

Embodiment 2

[0024] Adopt the present invention to spin 150 / 2 common ramie strands, its technological process is: adopt conventional method to spin ramie fiber 90wt% and water-soluble vinylon fiber 10wt% the blended single yarn that the twist coefficient of 11.ltex is 120 , wherein the mixing method is to realize mixing of ramie roving and water-soluble vinylon filament on the spinning frame (in the mixing process on the spinning frame, the distance between the ramie roving and the water-soluble vinylon filament is 0mm), and then carry out plying in 100 ℃ water Remove vinylon for 0.5 hour, completely remove vinylon, wash with water and dry at 100°C for 0.5 hour to obtain ramie strands with a fineness of 150 mm / 2 and a twist coefficient of 140.

[0025] In this embodiment, the vinylon that is soluble in water at 95°C is selected, so sodium hydroxide (2.2 g per 5 L of water) and JFC (2.2 g per 5 L of water) are added during the vinylon removal process to speed up the removal of vinylon. The ...

Embodiment 3

[0028] Using the present invention to spin ramie strands of 300 public counts / 2 public counts, the technological process is: 60 wt% of ramie fibers and 40 wt% of water-soluble vinylon fibers are spun into 5.56tex blended single yarns with a twist coefficient of 140 by conventional methods , where the mixing method is loose fiber mixing, and then after plying, vinylon is removed at 100°C for 4 hours. After the vinylon is completely removed, it will be washed with water and dried at 100°C for 4 hours to obtain a fineness of 150 public branches and a twist coefficient of 160 ramie strands.

[0029] In this embodiment, the vinylon that is soluble in water at 95° C. is selected for use, so sodium hydroxide (2.2 g per 5 L of water) and JFC (2.2 g per 5 L of water) are added to speed up the vinylon removal during the vinylon removal process. The ramie strand quality that present embodiment makes is shown in the table below:

[0030]

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Abstract

The method provides a method for producing a ramie high grade folded yarn. The method is characterized by the following steps: blending ramie fiber and water-soluble vinylon to produce a blended yarn with higher courts; folding the obtained blended yarn, removing viylon, washing and drying the obtained blended yarn to produce the ramie high grade folded yarn. By adopting the method, the ramie high grade folded yarn with fineness over 100Nm/2 can be produced, thereby realizing development of type diversification, thinness and high quality of the ramie high grade folded yarn.

Description

technical field [0001] The invention relates to a production method of high-count strands of ramie, belonging to the technical field of textile engineering. Background technique [0002] Ramie fiber has high strength, fast moisture absorption and moisture dissipation, good air permeability, antibacterial properties, and excellent wearability. It is especially suitable for summer products and is a widely favored green textile raw material. However, because of its high rigidity, stiffness, and insufficient flexibility, the yarn count is low and the hairiness is high. During conventional spinning, the spinnable count is low (36-4), and the woven fabric has a strong itching feeling, causing ramie The application of the product is limited. For a long time, people have devoted themselves to the research of high branching of ramie yarn, but due to the limitation of raw materials and spinning technology, the progress is limited. After spinning, the vinylon is dissolved in the fini...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/02
Inventor 梁红英谢文婕钱浩郁崇文
Owner DONGHUA UNIV
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