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Crossed rotation type radial contraction and expansion tubular fabric as well as preparation method and purpose thereof

A technology of rotating and tubular fabrics, which is applied in the direction of braids, textiles, and papermaking, and can solve the problems of cross-rotating radial shrinkage and expansion tubular fabrics and tubular fabrics that do not involve radial shrinkage and expansion functions. Effects of smoothness of withdrawal, high smoothness of withdrawal, and low tensile elongation

Inactive Publication Date: 2018-01-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The categories described in these patent technologies only relate to the research on aspects such as compression, shearing, shrinkage, and expansion of small-diameter tubular fabrics, but none of them relate to the tubular fabrics provided by the present invention with the function of radial expansion, especially not It relates to a cross-rotating radial shrinkable tube fabric and its preparation method provided by the present invention

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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  • Crossed rotation type radial contraction and expansion tubular fabric as well as preparation method and purpose thereof
  • Crossed rotation type radial contraction and expansion tubular fabric as well as preparation method and purpose thereof
  • Crossed rotation type radial contraction and expansion tubular fabric as well as preparation method and purpose thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 As shown, a cross-rotating radially expandable tubular fabric is a radially expandable tubular fabric 1 woven without weft yarns formed by weaving with symmetrical intersecting threads 11 and stabilizing warp yarns 12 .

[0038] When the tubular fabric 1 is braided and formed, the value of the crossing angle θ between the two crossing lines 11 is 90°; The relationship is: So helix angle is 45°.

[0039] The warp yarn 12 of the tubular fabric 1 adopts linear elastic weakly twisted Kevlar filament yarn with a modulus of 763.15cN / dtex, and the elongation at break is not more than 7%. Silk.

[0040] like figure 2 As shown, the tubular fabric 1 is characterized by:

[0041] ①The elastic elongation of the warp yarn 12 is not more than 10%, so as to ensure that the maximum elongation of the tubular fabric 1 in the axial direction is not more than 10%;

[0042] ② When the tubular fabric 1 is coated on the outer wall of the round tube, when the pulling m...

Embodiment 2

[0049] like figure 1 As shown, a cross-rotating radially expandable tubular fabric is a radially expandable tubular fabric 1 woven without weft yarns formed by weaving with symmetrical intersecting threads 11 and stabilizing warp yarns 12 .

[0050] The tubular fabric 1 is woven with symmetrical intersecting threads 11 to stabilize the warp yarns 12, thereby forming a radially expandable tubular structural fabric.

[0051] When the tubular fabric 1 is braided and formed, the value of the crossing angle θ between the two crossing lines 11 is 100°; The relationship is: So helix angle is 40°.

[0052] The warp yarn 12 of the tubular fabric 1 is made of linear elastic weakly twisted Kevlar filament with a modulus of 763.15cN / dtex, and the elongation at break is not more than 7%; the crossing thread 11 is made of rigid untwisted PBO filament with a smooth surface friction coefficient of 0.17.

[0053] like figure 2 As shown, the tubular fabric 1 is characterized by:

[00...

Embodiment 3

[0062] like figure 1 As shown, a cross-rotating radially expandable tubular fabric is a radially expandable tubular fabric 1 woven without weft yarns formed by weaving with symmetrical intersecting threads 11 and stabilizing warp yarns 12 .

[0063] The tubular fabric 1 is woven with symmetrical intersecting threads 11 to stabilize the warp yarns 12, thereby forming a radially expandable tubular structural fabric.

[0064] When the tubular fabric 1 is braided and formed, the value of the crossing angle θ between the two crossing lines 11 is 120°; The relationship is: So helix angle is 30°.

[0065] The warp yarn 12 of the tubular fabric 1 adopts linear elastic weakly twisted Kevlar filaments with a modulus of 763.15cN / dtex, and the elongation at break does not exceed 7%; the crossing yarn 11 adopts rigid untwisted PI filaments with a smooth surface friction coefficient of 0.21.

[0066] like figure 2 As shown, the tubular fabric 1 is characterized by:

[0067]①The el...

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 provides a crossed rotation type radial contraction and expansion tubular fabric as well as a preparation method and a purpose thereof. The crossed rotation type radial contraction and expansion tubular fabric is a radial contraction and expansion weft-yarn-weaving-free tubular fabric formed by stable warp yarns in a symmetrical crossed wire weaving mode. The warp yarns use high-modulus wire elasticity weak-twist or zero-twist long silk yarns; elastic contraction does not occur or is in the controlled range, so that the low elongation or small elongation quantity of the fabric inthe axial direction can be ensured; the crossed wire uses the smooth low-friction coefficient rigid zero-twist filaments, so that the crossed rotation is facilitated; no obvious bending exists. According to the preparation method, a circular knitting machine is used; the warp yarns are distributed in parallel at the certain warp density; the crossed wires are crossed at a certain spiral angle andare sequentially woven into tubular fabrics with the warp yarns. The tubular fabric can be used as a slender belt-shaped sampling or sample collecting bag to be used for small-size solid rock and soil sample stratigraphical drilling sampling and collection of space technology, geological research and archaeological discovery.

Description

technical field [0001] The invention belongs to the technical field of textile design and tubular fabric weaving, and relates to a tubular fabric with high drawing smoothness and low tensile elongation when stretching is performed along the inner and outer walls of a slender straight circular tube and the tubular fabric and its forming technology. Background technique [0002] At present, there are many reports on the technology and processing technology of tube fabric forming, and there are also some studies on preparation methods and preparation tools. Most of them focus on the traditional structural tube fabrics formed by weaving, knitting, and weaving. There are few studies on tube fabrics with variable structure functions, especially the high-drawing motion of the inner and outer walls of the slender straight circular tube under the action of stretching. Tube fabric with smoothness and low tensile elongation and its forming technology, and tube fabric with radial expan...

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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IPC IPC(8): D04C1/02D04C1/06D04C3/40
Inventor 于伟东丁作伟刘洪玲
Owner DONGHUA UNIV
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