Normal reinforced 2.5D fabric and weaving method thereof

A technology of fabrics and weaves, which is applied in the direction of fabrics, textiles, papermaking, textiles, etc., can solve problems such as instability and damage, and poor meridional compressive performance of composite materials, so as to enhance integrity, improve meridional compressive performance, Reduce the effect of compression instability

Inactive Publication Date: 2010-07-14
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the warp yarns of the 2.5D fabric are bent and interlocked in the thickness direction, which significantly improves the interlayer shear resistance of the composite material, but due to the high degree of warp yarn bending in the 2.5D fabric structure, when the compressive load along the warp direction , curved warp yarns are more prone to instability failure, making the warp compression resistance of 2.5D fabric-reinforced composites poor

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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  • Normal reinforced 2.5D fabric and weaving method thereof
  • Normal reinforced 2.5D fabric and weaving method thereof
  • Normal reinforced 2.5D fabric and weaving method thereof

Examples

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Embodiment 1

[0047] The warp yarn is 190tex quartz fiber × 3 strands, the weft yarn is 190tex quartz fiber × 6 strands, the normal yarn is 190tex quartz fiber × 1 strand, the number of warp yarn layers is 6 layers, the warp density of the fabric is 90 pieces / 10 cm, and the weft density is 20 root / 10cm, the fabric width is 100cm, and the fabric structure is a layer-by-layer corner interlocking structure with normal reinforcement.

[0048] Warp and weft yarn process parameter design:

[0049] (1), the number of warp rows N=fabric width×warp density=100×90÷10=900 rows;

[0050] (2), number of warp yarn layers M=6 layers, number of weft yarn layers=M+1=7 layers;

[0051] Specific implementation steps:

[0052] 1. Initial yarn arrangement. The warp yarns are arranged in 6 layers and 900 columns. For the sake of simplicity, 6 layers and 6 columns are selected for illustration (see Figure 5 , ○ represents the warp yarns in the odd-numbered columns, ● represents the warp yarns in the even-num...

Embodiment 2

[0060] The warp yarn is 190tex quartz fiber × 4 strands, the weft yarn is 190tex quartz fiber × 5 strands, the normal yarn is 190tex quartz fiber × 5 strands, the number of warp yarn layers is 6 layers, the warp density of the fabric is 57 pieces / 10cm, and the weft density is 40 root / 10cm, the fabric width is 100cm, and the fabric structure is a layer-by-layer corner interlocking structure with normal reinforcement.

[0061] Warp and weft yarn process parameter design:

[0062] 1. Number of warp rows N=fabric width×warp density=100×57÷10=570 rows.

[0063] 2, the number of warp yarn layers M=6 layers, the number of weft yarn layers=M+1=7 layers.

[0064] Specific implementation steps:

[0065] 1. Initial yarn arrangement. The warp yarns are arranged in 6 layers and 570 columns, and 6 layers and 6 columns are selected for illustration (see Figure 5 , ○ represents the warp yarns in the odd-numbered columns, ● represents the warp yarns in the even-numbered columns, and these...

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 discloses a normal reinforced 2.5D fabric and a weaving method thereof. The fabric comprises a warp yarn system and a weft yarn system, wherein the warp yarn system and the weft yarn system are interwoven to form a layer-layer-corner interlocking structure. The fabric is characterized by also comprising a normal yarn system, wherein the normal yarn system is perpendicular to the interwoven warp yarn system and weft yarn system, penetrates through the thickness of the fabric, and is held by the adjacent warp yarn and weft yarn, thereby forming the normal reinforced 2.5D fabric. The fabric weaving method is realized in a way that: a technique normal yarn system is added based on the prior weaving method of the 2.5D fabric; and the normal yarn is perpendicularly led between every two adjacent warp yarn rows by a yarn leading device in the weft yarn direction in a certain leading way, penetrates through the thickness direction of the fabric and is held by the adjacent weft yarn rows, thereby weaving the 2.5D fabric. The method comprises the following steps: arranging yarn initially, making a shedding motion, leading in the weft yarn, leading in the normal yarn, making a shedding motion for the second time, leading in the weft yarn for the second time, and repeating the last three steps, thereby obtaining the normal reinforced 2.5D fabric.

Description

technical field [0001] The invention relates to a three-dimensional fabric and its weaving technology, in particular to a normal reinforced 2.5D fabric and its weaving method. Background technique [0002] 2.5D fabric and its weaving technology are a new type of three-dimensional fabric weaving technology that has developed rapidly in recent years. 2.5D fabric is a kind of multi-layer three-dimensional fabric formed on the basis of woven three-dimensional weaving equipment, using multi-eye heddles to form multi-layer openings in warp yarns, and introducing weft yarns in a certain order. In 2.5D fabrics, the weft yarns are basically in a straight state, and the warp yarns bend through adjacent weft yarn layers to form a layer-by-layer shallow-linked fabric structure. Because the warp yarns do not run through the entire thickness of the fabric, this type of fabric is often referred to as a 2.5D fabric (or layered corner interlock fabric). [0003] 2.5D fabric-reinforced comp...

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): D03D3/00D03D13/00
Inventor 陈利孙绯焦亚男孙颖李嘉禄
Owner TIANJIN POLYTECHNIC UNIV
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