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Wednesday, December 12, 2012

Reasonably Priced Screen Printing Bethlehem

By Celia Hall


Screen printing is one of the earliest production techniques. It involves passing ink or other substance through a mesh stretched on a frame on which stencil has been applied. The openings on the stencil determine the image produced. Screen printing Bethlehem is the most versatile technique used for all production work.

This technique uses a wide range of materials for production either for commercial or home purposes. These include glass, paper, wood, plastic, ceramics, metal and fabrics. The availability of these materials locally at affordable price makes this method very popular across a wide range of classes of people in the world. The process involves no use of pressure at all.

The process of production is easy but time consuming. Available in the market are silkscreen machines that saves time and energy respectively. These come in several varieties. Manual machines are the least expensive serigraph machines. These are made of steel and coated by powder for durability. This print on flat surfaces only and all the processes involved are done manually.

The other category is semi automatic machines. This equipment is not labor intensive and produce grater output than manual ones. The processes are manual and partly automated. An activity such as moving the fabrics is automated while other like loading or unloading is manual. The display unit is placed pneumatically and the machine consumes electricity. This provides a wide range of colored print on diverse materials.

An automatic silk screening machine executes entire processes involved automatically. The machine is fully automated and runs on hydraulics, electric servers as well as advanced control systems. These machines have high production rate and produce high quality work. These types of machines are efficient and used for screen printing Bethlehem, PA.

A fine lattice of silk, nylon or polyester is spread over a wooden or aluminum frame. A negative design is created using photography on the display unit. Holes where color is filled during production are made using ultraviolet light. A light sensitive suspension is made to cover the mesh using photosensitive displays. This film blocks the holes when it dries up bonding together the lattice and image to be produced on the film.

Using print down frame technique the combination is exposed to ultraviolet rays for drying up. To remove any wet light emulsion a jet of water is used to clean the display. A stencil corresponding to the image on the display unit is formed. The frame is pressed on the object to be printed and ink rolled starting with the lightest to the darkest hues. Many printers use a squeegee to press ink on the production material. Where a stencil is made of plastic or paper, it can be reused several times.

Buyers have two alternatives to choose from when it comes to acquiring screen printing Bethlehem machines. One can opt for a brand new machine or go for a second hand one. Exploring the market will reveal adequate details necessary to make a good and economical machine. This equipment offer efficient and quality production.




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