CN2306235Y

CN2306235Y - Metal coated fibre screen cloth

Info

Publication number: CN2306235Y
Application number: CN 97234607
Authority: CN
Inventors: 许世琪; 范敏杰; 孙凌霄
Original assignee: HUATIAN ELECTROMAGNETIC WAVE SHIELDING MATERIAL CO Ltd SHANGHAI
Current assignee: HUATIAN ELECTROMAGNETIC WAVE SHIELDING MATERIAL CO Ltd SHANGHAI
Priority date: 1997-05-23
Filing date: 1997-05-23
Publication date: 1999-02-03
Anticipated expiration: 2007-05-23

Abstract

The utility model relates to a metal coated fibre screen cloth, and the utility model is composed of the woven of a fabric warp thread plated with a metallic film and a weft thread. The metals of copper, nickel, silver or the composite layers of the metals can be plated on the warp and weft threads, and the warp thread and the weft thread are vertical or inclined or woven in a mixing way. The utility model has good shielding effect, and the utility model has soft, light, light transparent, aeration, anticorrosion, electrostatic prevention, ultra-violet light prevention, fire retardant, asepsis, and good attachment properties. By testing, the utility model can reflect radio waves, reaching 99.9999 percent, and electric field magnetic field can be decayed by the utility model; the utility model can be used in the fields of aeronautics, astronautics, radio communication, medical and health, chemical protection, metallurgy mine, oil exploitation, military industry, etc.

Description

The polyamide fiber sprayed with metal shielding cloth

The utility model relates to a kind of metallic shield cloth, and the shielding cloth that forms is knitted in particularly a kind of polyamide fiber sprayed with metal warp, weft knitting.

Along with developing by leaps and bounds of science and technology, electronics makes rapid progress, for the human information transmission is provided convenience.Simultaneously, because various frequency electromagnetic wave is full of the space, brought negative effect also for human lives and work.Because frequency is identical or close, can produce the electronic equipment in the surrounding environment and disturb, cause other electronic functionalities malfunctioning.As using mobile telephone aboard, the electronic equipment in the driver's cabin is interfered, when serious navigation system is broken down, for this reason, civil aviation mangement department has forbidden using aboard mobile telephone.And the electromagnetic width of cloth of electronics is penetrated and is leaked, and can cause giving away secrets of transmission information.In addition, the extensive use of various rays on Medical Instruments, bring convenience for the diagnosis and the treatment of disease, and the vest of medical defence ray, generally be to come the substrate isolation x radiation x with lead, this vest is very heavy, and lead is again the pollution sources of infringement health, and often contact bring threat can for user's health.

Traditional screen realizes with wire netting or metal cap that mostly such screen flexibility is relatively poor, and applicable surface is narrower, and shield effectiveness is not good enough.At present, employing is also arranged in the prior art at electronic equipment inner surface coating conductive layer, or make composite plastic with engineering plastics and metal fibre, or on nonmetal flexible material complex metal layer, but it is poor that these screens all have temperature resistant capability, can not be fire-retardant, and shortcoming such as shield effectiveness is unsatisfactory.

The purpose of this utility model is to overcome above-mentioned defective of the prior art, and a kind of shielding cloth is provided, and makes it both have shield effectiveness preferably, have again intensity height, flexibility good, ventilate, ventilative, fire-retardant, the nontoxic attachment characteristic preferably that reaches.

To achieve these goals, the utility model has adopted following technical proposal: on the shielding cloth that is made into by warp, parallel fiber (cotton, fiber crops, silk, chemical fibre), described warp, parallel fiber are coated with metal, and are formed by this warp, parallel braiding that is coated with metal fibre.

Can be coated with any metal or its composite bed of copper, nickel, silver on described warp, the parallel plated fiber.

Be coated with between the fiber warp and warp of metal, contain the space between parallel and the parallel, contain the 20-80 order according to different needs per square inch.

The warp, parallel that are coated with metallic fibrous layer can be vertically or inclination or mixed weaving.

The utility model has good shield effectiveness through test: can reflect radio wave and reach 99.9999%; Decay 0.1-3.0 mhz band electric field reaches the 70-100 decibel; Decay 0.5-3.0 mhz band magnetic field reaches the 5-50 decibel; Can be with hyperfrequency decay 60-80 decibel in the 300-12000 zone.The utility model also has following properties in addition: soft, slim and graceful, printing opacity, ventilative, anticorrosion, antistatic, antiultraviolet, fire-retardant, nontoxic etc.The utility model can be widely used in fields such as Aeronautics and Astronautics, radio communication, health care, chemical protection, metallurgical mine, oil exploitation, military project.

Accompanying drawing is the utility model structural representation.

The utility model will be further described below in conjunction with accompanying drawing and embodiment.

With reference to accompanying drawing, with warp, the latitude silvalin 1,2 after the process activation processing, pass the high-strength alloy mould, enter the coating bath that slaine (copper, nickel, silver etc. or its compound) is housed, make in the even infiltrated fiber of metal ion, form the coat of metal, and keep the stable and thickness of coating of yarn count even, through typing, rinsing, drying, carry out vertical again or tilt or mix plating being woven into shielding cloth 3.

Warp, parallel polyamide fiber sprayed with metal 1,2 can be coated with different metal (any metal in copper, nickel, the silver or its composite bed) respectively according to different requirements.Present embodiment is coated with copper on warp 1, be coated with nickel on parallel 2, makes its positive and negative on the shielding cloth that braiding is shaped form electromagnetic field, thereby has improved shield effectiveness.

Between warp 1 that is coated with metal fibre and warp 1, all contain certain space between parallel 2 and the parallel 2 during braiding.Warp 1, parallel 2 fiber crossover nodes are the 20-80 order per square inch.

Claims

1, polyamide fiber sprayed with metal shielding cloth is made into by fiber warp, parallel fiber, it is characterized in that: metal-plated membrane on described warp, the parallel fiber.

2, polyamide fiber sprayed with metal shielding cloth according to claim 1 is characterized in that: can be coated with any metal or its composite bed in copper, nickel, the silver on described warp, the parallel fiber respectively.

3, polyamide fiber sprayed with metal shielding cloth according to claim 1 is characterized in that: between the warp and meridional fibers of metal-plated membrane, all contain the space between parallel and the parallel fiber, warp, parallel fiber crossover node are the 20-80 order per square inch.

4, according to claim 1,2,3 described polyamide fiber sprayed with metal shielding cloths, it is characterized in that: vertical or inclination of the warp of metal-plated membrane, parallel fiber or mixed weaving form.

5, polyamide fiber sprayed with metal shielding cloth according to claim 1 is characterized in that: described fiber mainly is made of cotton, fiber crops, silk or chemical fibre.