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Methods of stretching polyester bolting cloth

How many methods are there for stretching polyester bolting cloth (polyester screen printing mesh)? What are their characteristics? How to stretch polyester bolting cloth properly so as to achieve the best effect of printing?

Stretching is an indispensable process for making screen printing plates. Stretching the net is to firmly fix the screen to the frame under a certain pulling force. The stretched screen has a certain tension to meet the requirements of sensitizer coating and other plate making. The size of the screen tension and the quality of the stretcher also have a direct impact on the quality of the print. In color printing, the tension of the stretch screen of each color version of the screen printing plate must be kept basically the same, so as to ensure accurate overprinting. Only the stretch of the net can guarantee the quality of plate making and printing. Stretching nets mainly have two methods of manual stretching and mechanical stretching. Hand-made stretch nets are a simple and traditional method. Usually suitable for wooden frames. This method is to fix the screen to the wooden frame by artificially using nails, wood strips, adhesives, and the like. The tension of the manual stretch net can generally meet the requirements, but the tension is not uniform, it is more troublesome and time consuming, and the quality of the stretch net is not easy to guarantee. This method is often used in applications where the printing accuracy and printing accuracy are not high.

The mechanical stretcher uses mechanical force to tension the screen and firmly bond it to the frame with an adhesive. After the adhesive is dried, the frame is removed and the polyester film is sealed with a single-sided pressure-sensitive adhesive tape. To prevent the adhesive from dissolving and to make the screen printing plate look neat. Mechanical meshes can be used for mesh frames of various materials. The mechanical stretch net has the characteristics of uniform tension and short stretch time. Easy to grasp the required tension. Plate making for high precision requirements.

Hope the passage is helpful for you when stretching polyester bolting cloth.