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Method for producing hemp high-count yarns and folded yarns through Siro-spinning or Sirofil-spinning

A technology of sirofil spinning and high-count strands, which is applied in the direction of spinning machines, textiles, papermaking, yarn, etc., can solve the problem of difficult production of high-count, high-end products, restrictions on hemp and water-soluble vinylon blending or companion spinning, Restricting the development of the cannabis industry and other issues, achieving the effect of good evenness, uniform strength, and improved quality

Inactive Publication Date: 2011-02-23
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, water-soluble vinylon cannot be mixed with hemp fiber before the spinning process, which greatly limits the feasibility of blending or accompanying spinning of hemp and water-soluble vinylon
[0004] Due to the existence of the above problems, it is difficult to produce high-count and high-end products in the existing hemp wet spinning, which is not conducive to the diversified development of hemp product varieties, limits the promotion and application of hemp products to a large extent, and restricts the hemp industry. development of

Method used

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  • Method for producing hemp high-count yarns and folded yarns through Siro-spinning or Sirofil-spinning
  • Method for producing hemp high-count yarns and folded yarns through Siro-spinning or Sirofil-spinning
  • Method for producing hemp high-count yarns and folded yarns through Siro-spinning or Sirofil-spinning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Utilize the technology of the present invention, produce 50 public count pure hemp yarns and 50 / 2 public count hemp strands. Such as figure 1 As shown, it is a schematic diagram of the siro spinning mixing of hemp roving and water-soluble vinylon roving. The process is as follows: the hemp long hemp roving 9 after the boiling and bleaching process is passed through the water tank 7 (90 wt %) with the built-in guide roller 8 in the wet On the spinning frame, the water-soluble vinylon roving 10 (10wt%) is kept at a certain interval of 4mm and fed at the same time, after passing through the rear roller 6, the rear top roller 5, the light roller 4, the single apron 3, the front roller 2 and the front top roller After drafting of 1, it is mixed at the output place, and the strands output by the front roller are twisted into yarn, its metric twist coefficient is 0.80, and the hemp / vinylon blended yarn with a fineness of 45 metric counts is spun out, and then the Put the...

Embodiment 2

[0029] Utilize the technology of the present invention, produce 50 public count pure hemp yarns and 50 / 2 public count hemp strands. Such as figure 2 As shown, it is a schematic diagram of the sirofil spinning mixing of hemp roving and water-soluble vinylon single yarn or filament. The process is as follows: the hemp roving 11 (67wt%) after the boiling and bleaching process is fed into the wet spinning after passing through the water tank 7. Spinning machine, after drafting, it is twisted after mixing and outputting 10tex water-soluble vinylon yarn (33wt%) with an interval of 12mm at 2 front rollers. / vinylon blended yarn, and then put the blended yarn into the aqueous solution (bath ratio 1:10), after 2 hours of boiling, washing, dissolving (removing) the vinylon fiber, to get 50 metric count Pure hemp yarn.

[0030] The obtained hemp / vinylon blended yarn of 35 public counts is reversely plyed, and the ratio of the twist coefficient of the strands to the twist coefficient ...

Embodiment 3

[0034] Adopt the present invention to spin the pure hemp yarn of 150 public support and the hemp strand of 150 / 2 public support. First feed 30wt% hemp roving and 70% vinylon roving into the wet spinning spinning frame (the distance between the rovings is 0), and after drafting and twisting, a 50 metric count hemp / vinylon blend with a twist coefficient of 1.2 is produced yarn. Then put it into the aqueous solution for fiber removal (bath ratio 1:25), boil and wash for 6 hours, dissolve the vinylon fiber in it, and get 150 metric counts of pure hemp yarn.

[0035]The blended yarn produced by the above method is reversely plied and twisted, the ratio of the twist coefficient of the strand to the twist coefficient of the single yarn is 1.3, and the blended strand of hemp / vinylon with 50 / 2 public support is obtained, and then put into In the aqueous solution for fiber removal (bath ratio 1:25), after 6 hours of boiling and washing, the vinylon fibers in it are dissolved, and ...

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Abstract

The invention relates to a method for producing hemp high-count yarns and folded yarns through Siro-spinning or Sirofil-spinning. The method is characterized by comprising the following steps of: after boiling off and bleaching hemp roving, feeding the hemp roving together with water-soluble vinylon roving, a single yarn or a continuous yarn into a wet spinning frame to realize blending; after obtaining blended yarns of hemp / water-soluble vinylon, boiling and dissolving the blended yarns in aqueous solution to remove vinylon fibers so as to obtain the hemp high-count yarns; and reversely plying and twisting the blended yarns to form the folded yarns, then removing the vinylon to obtain the hemp high-count folded yarns, or reversely plying and twisting the blended yarns after removing the vinylon to obtain the hemp high-count folded yarns. The method can adopt conventional hemp fibers to spin the high-count pure hemp yarns and folded yarns, thereby solving the current problems that the conventional high-quality hemp raw materials deficient and the hemp high-count yarns are limited within 36 to 60 metric counts, and realizing the development of hemp products toward high count, high grade and species diversity.

Description

technical field [0001] The invention relates to a method for producing hemp high-count yarns and strands by siro spinning or sirofil spinning, and belongs to the technical field of textile engineering. Background technique [0002] Hemp is a natural fiber with excellent performance. It absorbs moisture quickly and releases moisture quickly, and has good air permeability. It is an ideal fabric for summer. As early as 3,000 years ago, there was a record of hemp textile application in my country. Later, because the tetrahydrocannabinol contained in the cannabis plant is a kind of drug, there are strict regulations on the cultivation of cannabis in the world, and only cannabis varieties with a THC content less than the specified value are allowed to be cultivated. At present, as the international community pays more and more attention to the development of natural fiber resources, the ban on hemp with excellent properties is gradually lifted, and hemp is getting more and more a...

Claims

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Application Information

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IPC IPC(8): D02G3/02D01H5/26D02G3/28
Inventor 郁崇文裴泽光胡碧玉张含飞杨建平张元明
Owner DONGHUA UNIV
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