Screen printing technology

Want to realize screen printing, screen printing emulsion (or coating) must adhere to the image that creates screen printing place to need in the ability on a kind of special cloth or silk screen. Want to get good screen printing quality, it is very important to be chosen webbily. It relies on black-and-white requirement, presswork detail of quality, stencil or intermediate intermediary type, black-and-white circumstance of how many appearance of He Chengyin substance. But no matter be which kinds of webby material, must have certain flexibility and strength, can withstand back and forth dilatory and will not be torn; It must have clear and visible reticulation; Mesh and starting a hole must size is consistent; Webby line cannot have run the circumstance of the line; Silk screen must fight painty, printing ink, dissolvent, be able to bear or endure clean, be able to bear or endure masking medium, be able to bear or endure drag, fight balata, suit store condition, be able to bear or endure the vibration of printing machine and extruding, other condition that gets used to the place in pressworking to need. Anyhow, webby conditional requirement is very slashing.
Be in abroad, wait for a country like the United States, the data that silk screen uses basically has silk (thin silk net) , nylon (nylon is webby) , polyester (polyester fibber is webby) , the polyester that the metal handles (plating nickel dacron is webby) , stainless steel (stainless steel is webby) , phosphorous bronze, thin cotton goods, cotton cloth and a few rough cotton cloth. Use as webby line can be made by animal material, also can be made by plant, mineral, synthetic and the combination of a few kinds of afore-mentioned material. Those who show all sorts of webby stuff is pass below presswork characteristic, usage and practical webby to differring actor bad was made quite.
Silk
Webby development progresses, especially since since 1945, already the incline to application at contented and complex screen printing, be like very careful presswork, circuit pressworks etc. In the meantime, it returns incline to to make product of delicate and decorous high-grade screen printing at undertaking.
Screen printing person undertake to all sorts of webby material the experiment discovers manufacturing, silk is the most satisfactory webby data in be being used normally. Because the chemistry of silk, physics is characteristic,this basically is, and characteristic of its much fiber silk, make it is helpful for screen printing film and emulsion layer can getting best adheres to. Nevertheless, because silk screen of nylon, polyester can undertake be braidinged subtly, finer detail can be obtained in pressworking, because this is current,silk is used webbily much without nylon, polyester. But from silk screen familial rank early or late for, silk silk screen is the earliest undoubtedly, also because of such, this name just regards ” of “ screen printing as a general designation of all screen printing. In 19 centuries, holand, Switzerland and France use silk cloth at first filter flour, it is the earliest analogue of screen printing. Silk is the strength in natural fiber is the greatest, the webby and highest impression that it makes can be achieved 25000 imprint. Silk screen can classify with following means: (A) braid a structure; (B) line number, namely every inches or centimeter how many mesh; (C) quality.
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