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Predetermining method of extensibility of twill fabric, manufacturing method of twill fabric with set extensibility

A technology of twill fabric and elongation, which is applied in the field of fabric weaving, and can solve the problems that the stretchability of woven fabrics is not easy to predict and determine, and the wear resistance, washability, and durability of knitted fabrics are not as good as woven fabrics, etc.

Active Publication Date: 2021-03-23
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the elongation ability of knitted fabrics is much better than that of woven fabrics, the wear resistance, washability and durability of knitted fabrics are not as good as woven fabrics
However, compared with the controllability of warmth retention, moisture permeability and heat dissipation, the stretchability of woven fabrics, especially the stretchability of plain weave fabrics with a simpler fabric structure, is very difficult to predict and determine

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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  • Predetermining method of extensibility of twill fabric, manufacturing method of twill fabric with set extensibility
  • Predetermining method of extensibility of twill fabric, manufacturing method of twill fabric with set extensibility
  • Predetermining method of extensibility of twill fabric, manufacturing method of twill fabric with set extensibility

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1: a kind of warp direction extensibility measuring method of twill fabric, comprises the steps:

[0075] Get the warp radius r of the fabric to be tested j , weft radius r w ; The specific method is to measure the warp yarn density N of the fabric to be tested tj , weft yarn density N tw (unit tex), and the warp volume weight coefficient δ in the standard state j and weft volume weight coefficient δ w (unit mg / mm 3 ), then the warp radius

[0076]

[0077] Weft radius

[0078]

[0079] Measure the warp length X of the fabric to be tested j and weft length X w (unit cm), obtain the number of warp yarns P in the weft length direction of each 1cm of the fabric to be tested j , the number of weft yarns in the warp length direction per 1cm P w (unit root); the specific method is to take a 5cm × 5cm standard sample, at this time, the length X j 5cm, weft length X w is 5cm, check the number of warp yarns in the standard sample M j , number of wef...

Embodiment 2

[0082] Embodiment 2: a kind of weft extensibility measuring method of twill fabric, principle is the same as embodiment 1, comprises the steps:

[0083] Get the warp radius r of the fabric to be tested j , weft radius r w ;

[0084] Measure the warp length X of the fabric to be tested j and weft length X w (unit cm), obtain the number of warp yarns P in the weft length direction of each 1cm of the fabric to be tested j , the number of weft yarns in the warp length direction per 1cm P w (unit root / cm);

[0085] In the weft direction of the twill fabric to be tested, apply the maximum tensile force T that can naturally return to its original shape w (unit cN). Generally, the weft breaking strength T of the twill fabric to be tested is measured. wD , then T w =y wD T wD ;y wD is the force coefficient of the weft yarn in the twill fabric, y wD ≤30%. as required, y wD Can take 5%, 10%, 15%, 20%, 25% or 30%.

[0086] Substituting the aforementioned parameters into th...

experiment example 1

[0088] Three twill woven fabrics were selected as experimental materials. The specifications and parameters of the three experimental samples are shown in Table 1.

[0089] Table 1 The basic specification parameters of the test samples

[0090]

[0091] According to the textile industry standard FZ / T 01093-2008, use the Y331N yarn twist machine to measure the length of the warp and weft yarns when they are stretched under the pre-tensioned state, and measure the weight of the warp and weft yarns under the conditions specified in the standard. The length and weight of the lower warp and weft yarns in the straight state are used to calculate the linear density of the warp and weft yarns.

[0092] Warp and weft yarn density in the sample in Table 2

[0093]

[0094] The σ values ​​of commonly used yarns are shown in Table 3.

[0095] Table 3 σ value of commonly used yarns

[0096]

[0097] According to Table 3, the selected σ value for sample 1 and sample 2 is 0.85 (...

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

A method for presetting elongation of a twill fabric comprises the steps of presetting warp radius and weft radius of a fabric to be tested to form elastic coefficients of three adjacent warps of thefabric; presetting warp number of weftwise unit length and weft number of warpwise unit length; presetting warpwise length, weftwise length and warpwise breaking strength; and calculating to obtain radial elongation of the twill fabric to be tested. A method for manufacturing a twill fabric with set warpwise elongation comprises the steps of acquiring warps and wefts used for manufacturing the twill fabric, acquiring warp radius, weft radius and breaking strength of the warps, acquiring elastic coefficients of adjacent three warps in a weave unit, calculating a plurality of groups of alternative solutions, setting stress mobilization coefficients of the warps in the twill fabric, and trial-producing the twill fabric according to the alternative solutions; when the elongation of the trial-produced fabric meets the elongation error range required for manufacturing, the twill fabric can be manufactured according to relevant physical quantity parameters. The material selection and structure design for the twill fabric can be guided according to the required fabric elongation.

Description

technical field [0001] The invention relates to the technical field of fabric weaving, in particular to a method for presetting the extensibility of a twill weave fabric and a method for making a twill weave fabric with set extensibility. Background technique [0002] In sports competitions such as swimming and track and field, the performance of the competitive clothing worn by the players can significantly affect the performance of the players. Therefore, it is necessary to measure the performance of the fabric from multiple angles, or to guide the actual production by constructing a prediction model of the fabric performance, so as to reduce the test cost. For example, the Chinese patent document CN103439188B published on July 15, 2015 records a method for predicting the tear resistance of composite plain weave fabrics, which theoretically deduces the tear resistance prediction of infinitely large composite material fabrics under any crack length. The formula facilitates...

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): D03D13/00G06F17/12
CPCD03D13/002G06F17/12
Inventor 朱进忠高秀丽孔繁荣严广松张海霞周蓉苏玉恒
Owner HENAN INST OF ENG