Dyeing technology of ramie strips and manufacturing method of spinning

A production method, ramie technology, applied in dyeing, yarn, textiles and papermaking, etc., can solve problems such as broken needles and missing needles, waste, easy fiber strips to be broken, etc., to achieve increased added value, high economic benefits, and not easy to break strip effect

Active Publication Date: 2011-12-14
HUNAN HUASHENG ZHUZHOU CEDAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly ramie yarn dyeing and loose fiber (fine hemp) dyeing in ramie dyeing, and both have been successful, but the dyed ramie yarn is woven into yarn-dyed fabrics, and the style is relatively fixed; while the fine dry hemp is dyed, the production rate is low. , the waste is serious; although there are also dyeing with ramie strips, the production rate can be greatly improved, and the merging and blending of ramie strips of different colors can be used to form yarns to achieve a variety of colorful effects that cannot be achieved by dyeing yarns; but now The ramie strip dyeing technology generally uses the conventional top dyeing technology in the wool spinning industry or the cotton spinning industry. Because the ramie fiber has no crimp and poor cohesion, the dyed fiber strips are combined and easily broken; When it is used, it is easy to cause poor drafting, broken needles and lack of needles, and it is difficult to spin smoothly.

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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  • Dyeing technology of ramie strips and manufacturing method of spinning
  • Dyeing technology of ramie strips and manufacturing method of spinning
  • Dyeing technology of ramie strips and manufacturing method of spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Embodiment 1: produce 24Nm pure hemp brown knitting yarn

[0078] 1. Make ramie fiber strips into coil-shaped ramie balls

[0079]

[0080] 2. Put the ramie balls into the nylon mesh bag, fix the ramie fiber strips along the axial center hole from the outside, with moderate tightness, so as to prevent the ramie fiber strips from being disordered.

[0081] 3. Put the fixed ramie balls into the hanging cage.

[0082] 4. Hang the cage with ramie balls into the yarn dyeing machine.

[0083] 5. Carry out ramie fiber strip dyeing

[0084] Dyeing process: pre-treatment → dyeing → post-treatment

[0085] ①, pre-processing

[0086]

[0087] Such a cycle not only ensures uniform dyeing, but also ensures that the fiber strips do not flocculate.

[0088] ②, dyeing

[0089] Dye: reactive dye (brown) 3BE-N: 0.63%, 3BF-N: 0.51%, B: 23%.

[0090] Bath ratio: 1:4

[0091] Add dissolved dye at room temperature, run for 5 minutes, add dissolved salt, heat up to 60°C, run for...

Embodiment 2

[0137] Embodiment 2: produce 60Nm ramie viscose hemp gray spinning yarn (30% ramie / 70% viscose)

[0138] 1, according to the method for step 1~10 of embodiment 1, ramie fiber strip is dyed into black ramie black fiber strip.

[0139] 2, according to the method for step 11~13 of embodiment 1, make combed ramie black fiber strip.

[0140] 3. Combining and drafting the combed ramie black fiber strips to make a semi-finished product that meets the technological requirements and has evenness.

[0141] Main process conditions:

[0142]

[0143] 4. Pre-combining ramie white fiber strips, combining and drawing to make a semi-finished product that meets the process requirements and is evenly dry. The main process conditions are the same as 3.

[0144]5. Pre-combining, merging, drafting and making semi-finished products that meet the technical requirements and evenly dry the viscose white fiber strips. The main process conditions are the same as in 3.

[0145] 6. Process flow of c...

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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PUM

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Abstract

The invention discloses a dyeing technology of ramie strips. The technology comprises the following steps: 1, pretreating: boiling the ramie strips for 8-12min, wherein a boiling agent is an aqueous solution containing 1-3g / L of a penetrating agent, and a bath ratio is 1:4-10; and 2, dyeing: dyeing the boiled ramie strips in a reactive dye, wherein the bath ratio is 1:4-10. The invention also discloses a making method of ramie spinning. The dyed ramie strips of the invention allows the performance of a ramie fiber to be improved, so the broken of the ramie fiber is not easy to occur when folding and drawing the fiber, and the hardening of the ramie fiber is also not easy to occur, thereby phenomena of adverse drawing, needle breaking and lacking and the like caused by post-operation carding do not occur, and a purpose of smooth spinning is reached.

Description

technical field [0001] The invention relates to the technical field of cloth printing and dyeing, in particular to a dyeing process of ramie strips and a manufacturing method of ramie spinning. Background technique [0002] Ramie is a high-quality and high-yield fiber crop with Chinese characteristics. The total output accounts for about 90% of the world. Ramie fiber has the advantages of strong hygroscopicity, fast heat dissipation, strong anti-corrosion and anti-bacterial ability, soft color, renewable utilization, and ecological environmental protection. Very good performance. [0003] With the development of production technology and the improvement of people's living standards, people are using more and more ramie, mainly for making ramie cloth, such as summer cloth. At present, there are mainly ramie yarn dyeing and loose fiber (fine hemp) dyeing in ramie dyeing, and both have been successful, but the dyed ramie yarn is woven into yarn-dyed fabrics, and the style is r...

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): D06P3/66D06B3/09D06P5/02D06M13/165D06M15/53D02G3/02D06M101/06
CPCD06P1/445D06P3/66D06P7/005D06P1/0032
Inventor 刘黎明马志翁扬匡颖陈德明邹瑞芝
Owner HUNAN HUASHENG ZHUZHOU CEDAR
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