Silk screen scraper water oil wood handle scraping ink screen printing paste manual scraper scraper tip flat wear

1. Product introduction

Squeegee is a strip used in the screen printing process and generally becomes a squeegee. Most of them are made of PU materials. Depending on the characteristics of the screen printing substrate, the accuracy of the printed pattern, and the printing method, it is possible to select the squeegee of different hardness and cross-sectional shape. The hardness of the squeegee is specific to the hardness of its surface. Often expressed in Shore hardness tables; 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, 90 degrees. The cross-sectional shape generally has a flat surface, a pointed surface, and a sloped surface.

Product Size:

Taking 50*9 flat 75 degrees as an example, 50 represents the width of the colloid, 9 represents the thickness of the colloid, flat mouth refers to the shape of the knife edge, 75 degree refers to the hardness of the rubber, and the length of the scraper of the wooden handle is mostly one meter long. How long does it take to use it?

2. Selection of hardness and cross-sectional shape of the scraping rubber

Hardness selection

45°---65° (soft squeegee, suitable for printing uneven surface products)

65°---80° (comprehensive performance, suitable for all kinds of printed matter)

75°---95° (wear resistance, good solvent resistance, suitable for printing fine patterns)

Section shape selection

Flat mouth scraping glue: common shape, with a certain adaptability, can withstand the highest pressure.

Sharp squeegee: It has good flexibility, compliance, and reduced pressure. It is suitable for printing on irregular surfaces and irregular shape substrates.

Obtuse angle squeegee: It has the characteristics of flat and sharp scraping, and it is not easy to appear collapse.

3. How to use

When using, try to avoid excessive pressure on the stencil. This will cause the ink layer to be extremely thick, difficult to control, and excessively wear the stencil. Therefore, the correct way is to make the ends of the squeegee and the edge of the screen suitable. The distance is then printed with the appropriate pressure. Do not apply pressure when the squeegee is placed in the handle or use too thick a size to force it in. The squeegee should be allowed to rest regularly instead of continuously.

4. Cleaning

Wipe off excess ink with a cloth and then wash it with a soft cloth dampened with a suitable solvent. Do not use strong solvents, especially ink thinners, to clean the squeegee. The gel should be left idle after grinding or before use to completely evaporate the solution.

5. Grinding

It can be ground in a general and general way: belt type, roller type, knife cutting type can only grind dry squeegee, and it can't be wiped with solvent immediately after grinding.

6. Storage

For long-term storage, the squeegee should be wrapped and placed in a dry and cool room to avoid direct light exposure. Otherwise, the performance and hardness of the squeegee will change.