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Top covering and bottom supporting type three-shafting composite yarn, spinning method and applications thereof

A composite yarn and shafting technology, applied in the direction of yarn, textiles and papermaking, etc., can solve the problem that short fibers cannot be effectively protected, and achieve the effect of practical mechanism, convenient installation and stable structure

Active Publication Date: 2015-02-25
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent is formed by twining and twisting filaments and short fibers, and the short fibers cannot be effectively protected

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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  • Top covering and bottom supporting type three-shafting composite yarn, spinning method and applications thereof
  • Top covering and bottom supporting type three-shafting composite yarn, spinning method and applications thereof
  • Top covering and bottom supporting type three-shafting composite yarn, spinning method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: reuse cotton (noil) and viscose filament

[0036] Adopt the upper cover and lower support type three-axis composite spinning method for the sliver of the present invention, spread the two strands of viscose filament bundles according to the above upper cover and lower support splitting yarn spreading method, and then spread them in the front roller clamp Twist compounding with recycled cotton fiber strands at the mouth to form a smooth triaxial composite cotton yarn. The specific process parameters are shown in the table below. The spun viscose filament upper cover and the lower holder clamp the smooth composite yarn wrapped with recycled noil short fiber strands, the hairiness index, twist angle, breaking strength, elongation at break and yarn quality of the yarn. The unevenness of strip fineness is listed in the table below. Among them, the spinning rate is very high, all higher than 98.5%, indicating that there is very little fiber loss such as flying,...

Embodiment 2

[0037] Example 2: short hair and silk

[0038] Adopt the upper cover and lower support type three-axis composite spinning method for the sliver of the present invention, spread the two silk bundles according to the above-mentioned upper cover and lower support split yarn spreading method, and then at the front roller nip place and The short-haired fiber strands are twisted and compounded to form a smooth triaxial composite wool yarn. The specific process parameters are shown in the table below. The spun silk upper cover and the lower holder clamp the smooth composite yarn wrapped with short-haired fiber strands. The hairiness index, twist angle, breaking strength, elongation at break and yarn fineness unevenness of the yarn See list below. Among them, the spinning rate is very high, all higher than 98.5%, which means that there is very little fiber loss such as fly hair and broken ends; the number of hairiness is also very small, which means that the yarn has a good finish; ...

Embodiment 3

[0039] Embodiment 3: kapok / PTT filament

[0040] Adopt the upper cover and lower support type three-axis composite spinning method for the sliver of the present invention, spread the two strands of PTT filament bundles according to the above-mentioned upper cover and lower support splitting yarn spreading method, and then spread them at the front roller nip Twisting and compounding with kapok fiber strands to form a smooth triaxial composite kapok yarn. The specific process parameters are shown in the table below. The spun PTT filament upper cover and the lower support clamp the smooth composite yarn wrapped with kapok staple fiber. The hairiness index, twist angle, breaking strength, elongation at break and yarn fineness of the yarn are different. The uniform rate is listed in the table below. Among them, the spinning rate is very high, all higher than 98.5%, indicating that there is very little fiber loss such as flying, chipping, and broken ends; the number of hairiness is...

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 top covering and bottom supporting type three-shafting composite yarn and a spinning method thereof. The composite yarn is of a three-shafting composite spun yarn prepared by using an upper-layer filament and a lower-layer filament to clamp and protect chopped fiber strands, so that the formed filament is of a composite yarn in form of cored layer chopped fiber strands being wound by the filaments. The spinning method comprises the steps of firstly installing a top covering yarn spreader, a bottom supporting yarn spreader and a clustering device on a common fine yarn spinning machine; then spreading two filament clusters by an upper yarn spreading roll and a lower yarn spreading roll into two filament layers, synchronously feeding in a front roller jaw together with chopped fiber strand passing through the clustering device in three-shafting manner, and respectively using the two filament layers to clamp the chopped fiber strands by means of top covering and bottom supporting; and when the two filament layers and the chopped fiber strands come out the front roller jaw, forming composite yarns in form of the chopped fiber strands being wound by the two filament layers under twisting action. The method is applicable to spinning of protective type soft, smooth and high-count composite yarns for ultrashort fibers which are easy to fall crumbs and easy to fly, as well as shorter and weaker reclaimed fibers.

Description

technical field [0001] The invention relates to an upper cover and lower support type three-axis composite yarn, a spinning method of the composite yarn and the application of the spinning method, belonging to the upper cover and lower support protection type composite spinning technology in the field of ring spinning . Background technique [0002] With the rapid development of the textile industry, short and weak fibers such as noil and noil increase in the textile processing process; the fibers obtained from recycled textiles have a certain gap in length and strength compared with the original fibers; Some new ultra-short and fragile fibers, such as kapok and down, have begun to be paid attention to and utilized. The yarns spun from these shorter and weaker fibers have low strength and more hairiness. As a result, this type of short and weak fibers cannot be fully utilized. [0003] However, the composite yarn of filaments covering staple fibers can make up for this de...

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 Patents(China)
IPC IPC(8): D02G3/36D02G3/38D01H13/00D01H13/04D02J1/18
Inventor 于伟东邓成亮王东杜赵群于昊慧
Owner DONGHUA UNIV
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