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Fabric punched felt complex and preparation method thereof

A knitted fabric and needle-punched felt technology, which is applied in the field of knitted fabric needle-punched felt aggregate and its preparation, can solve the problems of long production cycle, many labor, increase production cost, etc., and achieves elimination of thermal stress and thermal strain, and fiber saving. Raw materials, the effect of short production cycle

Active Publication Date: 2014-06-25
HUNAN JIUHUA CARBON HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When using continuous functional fibers such as glass fiber, carbon fiber, etc. to weave large or thick pieces, it often requires more labor and a lot of working time. cost of production

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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  • Fabric punched felt complex and preparation method thereof
  • Fabric punched felt complex and preparation method thereof
  • Fabric punched felt complex and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The present invention also provides a method for preparing a knitted fabric needle felt assembly, comprising the following steps:

[0038] Composite the continuous functional fiber braided fabric layer and the continuous functional fiber bulked yarn coarse braided fabric layer to obtain an integrated fabric;

[0039] Combining the chopped functional fiber needled felt layer with the continuous functional fiber bulked yarn coarse braid layer of the integrated fabric through needle punching to obtain a braided needle felt assembly.

[0040] In the invention, the continuous functional fiber braided fabric layer and the continuous functional fiber bulked yarn coarse braided fabric layer are combined to obtain an integrated fabric.

[0041]In the present invention, the continuous functional fiber braid layer is a single-layer or more than two-layer long fiber bundle braid commonly used in the field, which can be made of continuous functional fibers by weaving or braiding. T...

Embodiment 1

[0053] The 12K carbon fiber is made into a single-layer two-up and one-down twill weave fabric by weaving method, and its thickness is 1.5mm; Two upper and lower twill coarse braids connected by two upper and lower twill fabrics, the thickness of which is 6mm, constitutes an integrated fabric;

[0054] The chopped carbon fiber with a length of 55mm and 6K is carded into a net in the non-woven technology to make a needle-punched felt with a thickness of 8mm, and then the inner surface of the integrated fabric is attached to the inner core mold of the flat plate, and passed The chopped carbon fibers in the needled felt are pierced into the bulked yarn roving layer by needling to obtain a flat plate fiber aggregate; wherein, the process conditions of needling are: the needling density is 20 needles / cm 2 ; Acupuncture depth is 25mm.

[0055] figure 1 It is a schematic diagram of the needling action in the preparation method of the woven needle felt assembly provided in Example 1...

Embodiment 2

[0058] The 12K carbon fiber is made into a single-layer plain weave fabric with one up and one down by weaving method, and its thickness is 1mm; An upper and a lower plain weave coarse braid connected with an upper and a lower plain weave, the thickness of which is 6 mm, forming an integrated fabric;

[0059] The chopped carbon fiber with a length of 60mm and 12K is carded into a net in the non-woven technology to make a needle-punched felt with a thickness of 6mm, and then the inner surface of the integrated fabric is attached to the cylindrical inner mandrel, and passed The chopped carbon fibers in the needle-punched felt are inserted into the bulked yarn roving layer by needling to obtain a cylindrical fiber aggregate; wherein, the process conditions of needling are: the needling density is 50 needles / cm 2 ; Acupuncture depth is 8mm.

[0060] figure 2 Schematic diagram of the needling action in the preparation method of the woven needle felt assembly provided in Example ...

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 fabric punched felt complex and a preparation method thereof. The preparation method comprises the following steps: compounding a continuous functional fiber fabric layer and a continuous functional fiber bulked yarn crude fabric layer together so as to obtain integrated fabric; then compounding a chopped functional fiber punched felt layer with the continuous functional fiber bulked yarn crude fabric layer of the integrated fabric through needling so as to obtain the fabric punched felt complex. The fabric punched felt complex has a light and high strength structure with stepped intensity changes. The weight of the fabric punched felt complex is 30% lighter than that of complete fabric with a same volume, while the mechanical performance of the fabric punched felt complex is equal to that of complete fabric with a same volume, and is better than that of complete chopped fiber punched felt. At the same time the fiber raw material is saved by 30% or more, moreover the preparation technology is simple, and the production period is short.

Description

technical field [0001] The invention relates to the technical field of fiber materials, in particular to a knitted fabric needle-punched felt assembly and a preparation method thereof. Background technique [0002] Continuous functional fiber braids, such as glass fiber braids and carbon fiber braids, are fiber aggregate materials with light weight and excellent mechanical properties, and have played a huge role in the fields of national defense and civil industry. In many engineering applications, generally only one surface of the continuous functional fiber braid is needed, that is, the working surface, and the corresponding other surface is the non-working surface. The requirements for the working surface of continuous functional fiber braids are that the weaving texture is regular, the pattern is consistent and tidy, and the fiber breakage and hair ends are less; for its non-working surface, it is generally required to have a certain Z-direction connection, and there is ...

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): B32B9/02B32B17/02B32B19/00B32B7/08
Inventor 杨朝坤房冰於婷
Owner HUNAN JIUHUA CARBON HI TECH
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