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Preparation method for composite UD non-woven fabrics and uses thereof

A production method and technology of weft-free cloth, applied in the directions of application, chemical instruments and methods, hat products, etc., can solve the problems of large proportion of full aramid fiber UD weft-free cloth, wearer injury, and large extension, etc. Light, good flexibility, low hardness

Inactive Publication Date: 2008-10-15
励佰芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two kinds of non-weft fabrics have these disadvantages: the specificity of a single all-aramid fiber UD non-weft fabric is large, and the weight of the finished product is relatively large; After the product is finished, the drum bag is relatively large and is easy to cause damage to the wearer. UD cloth is harder than aramid fiber. Therefore, users generally desire to have such a new type of product: the specific gravity of the product is light, and it can be worn after being finished. Comfortable, moderate hardness, better flexibility

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The technical idea of ​​the present invention is to overcome the shortcomings of the prior art using a single full aramid fiber UD non-weft fabric or a single high-strength and high-modulus polyethylene fiber UD non-weft fabric, which has a large specific weight and a relatively large weight after the finished product is produced by spraying thermoplastic high-toughness glue The liquid makes the fiber and the film, the fiber and the fiber firmly bond together into a composite full aramid fiber and high-strength high-modulus polyethylene UD latitude cloth, which is then stacked orthogonally and hot pressed into a composite UD latitude cloth

[0018] The production process is:

[0019] Laying polyethylene film-→high-performance PE fiber / aramid fiber-→laying silk-→spraying adhesive-→drying and forming-→slicing-→unidirectional weftless cloth;

[0020] One-way weft-free cloth horizontal----

[0021] Unidirectional non-weft cloth transverse direction----orthogonal compound-→hot p...

Embodiment 2

[0032] High performance composite bulletproof board

[0033] At present, most of the bulletproof plates that have been put into use are steel plates, alloy plates, metal plastic composite plates, metal fiber composite plates, etc. Due to the impact of material properties, most of these bulletproof plates are heavy, so people invented a single full aramid fiber UD without Weft fabrics and a single high-strength and high-modulus polyethylene fiber UD non-weft fabric are used to make bulletproof sheets. However, both of these two non-weft fabrics have these shortcomings: a single full aramid fiber UD non-weft fabric has a large specific weight, and the finished product has a relatively large weight; Single high-strength and high-modulus polyethylene fiber UD non-weft cloth fiber cloth has a large extension. After the finished product, the bulge is relatively large and easy to cause damage to the wearer. UD cloth is harder than aramid.

[0034] The composite UD non-weft fabric made by...

Embodiment 3

[0036] The production process is:

[0037] High-performance composite UD weft-free fabric -→cutting-→orderly stacking-→preheating-→hot pressing-→cooling forming-→finished product;

[0038] Cutting: Cutting the high-performance composite UD non-weft cloth into the shape and size required by the user;

[0039] Orderly stacking-stack the cut high-performance composite UD non-weft cloth pieces in order 90° orthogonally;

[0040] Preheating: Put the folded cloth piece into a mold that has been heated to 110-120℃, and preheat it with a pressure of 5Mpa until the center temperature of the cloth piece rises to 110-118℃;

[0041] Hot pressing: increase the pressure to 18-22Mpa, and maintain a constant temperature and constant pressure for 25-40 minutes, so that the fiber and the matrix are tightly combined;

[0042] Cooling and forming: Turn off the heating system of the hydraulic press, start the cooling system, and maintain the original pressure, quickly reduce the mold temperature to be...

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 method for producing composite UD laid fabric which consists of at least aramid fiber and high-strength and high-modulus polyethylene. The method comprises the following steps that: the aramid fiber is evenly paved on a membrane made of polyethylene, thermoplasticity high tenacity glue solution is transmitted by spraying or a roller to ensure that the fiber and the membrane as well as fibers are stuck to form a composite full-aramid fiber and high-strength and high-modulus polyethylene laid fabric; the high-performance composite UD laid fabric is made on a special device. The composite UD laid fabric produced by the method is taken as the foundation which is applied to the fields such as a flak jacket, a cap, vehicle and plank stuff, etc. by a special technique method. The laid fabric produced by the method is effectively bulletproof, solves the problem of great specific gravity of the product, improves the extensibility of the product and the bulletproof property and protects a user perfects. The laid fabric has the advantages of light specific gravity, comfortable wear, small hardness and better flexibility.

Description

Technical field [0001] The invention relates to a method for making a composite UD non-weft fabric with high-performance, high-strength and high modulus aramid fiber and high-strength high-modulus polyethylene fiber, and its application in the field of protection, and relates to a composite fiber non-weft fabric The field of physical production methods and the application of bulletproof protective products. Background technique [0002] Aramid fiber is a kind of aramid fiber. Aramid is a man-made fiber. Its fiber formation is a polymer long-chain synthetic polyamide. At least 85% of amide chains are directly connected to two aromatic rings. to make. The unique performance of aramid fiber is its high tensile strength, abrasion resistance, elongation resistance, toughness and high temperature resistance. The aramid fiber will not melt, it will coke and degrade above 371 degrees, and the moisture regain rate is 5.5%. [0003] Polyethylene fiber, also known as high-strength and high-...

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): D06N3/04D01F6/60B32B5/22B32B27/12B32B37/06F41H1/02A42B3/00
Inventor 励佰芳
Owner 励佰芳
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