In the screen printing preparation work, the reasons for the uneven meshing are various. The main possible causes are now listed.
1, uneven weaving
Under normal circumstances, commercial printing, silk screen sometimes prone to uneven silk or silk gap or good or bad problem, which will cause changes in the hole and affect the printing ink transfer, ink film thickness will appear difference. If the net weave is not uniform or good or bad, this will cause the change of the aperture and affect the transfer of printing ink, the thickness of the ink film will be different Agfa, such as the uneven weaving of the net, only appears in the local, when used Should avoid this part as much as possible, do not make it affect the printing quality, jump wire refers to a certain filament in the weaving in the middle of breaking the medical packaging, forming a few centimeters off the state, if you do not pay attention you can not find this situation Defects will also affect the quality of screen printing.
2, the surface of the screen is not smooth
The polyester monofilament used for screen printing is sprayed through a nozzle, and this process produces a silk with a fairly smooth and uniform surface.
Mesh thickness is one of the determinants of the ink film thickness. The strength of a single mesh wire is determined by its tensile strength and diameter determined by digital printing, and the strength of the wire mesh is determined by the strength of the wire mesh and the wire mesh within the unit length of the wire mesh. The number is decided.
3, the uneven thickness of the screen
The net is woven from silk, and most people think that the thickness of silk is generally the same, but it is not true. Due to the change in the thickness of the mesh, a certain portion of the mesh becomes thicker or thinner, and ink thickness unevenness occurs during printing.
4. How easy it is for ink to escape the screen
In general, when screens are used, consider more drupa in this area. In the middle of prints, use high-transparency inks. The pigment particles are finer and the inks pass well. When this ink uses high-mesh screens, It can also pass the financial crisis well. In general, plastic inks pass well; for inks with high ink concentration for special purposes, although the particles are fine, their performance is still relatively poor. Gao Bao
5, the rough surface of the substrate
Under normal circumstances, during the printing process, when the surface map of the substrate is rough, the company will investigate and use fine screens, generally using lower mesh screens, such as leather, canvas, foam sheet, and wood, due to printing. The surface of the object is very rough, and the ink absorption is strong. Therefore, it is necessary to cut the mesh with a mesh with a low mesh number to ensure that sufficient ink volume passes through the mesh smoothly.
6, according to the original line of fine graphics to select the screen
Contrary to the above, under normal circumstances, high-mesh screens must be selected for fine lines.
7, when choosing the screen also consider the cost
Under the premise of satisfying the printing requirements, try to use wire mesh products with lower prices.
1, uneven weaving
Under normal circumstances, commercial printing, silk screen sometimes prone to uneven silk or silk gap or good or bad problem, which will cause changes in the hole and affect the printing ink transfer, ink film thickness will appear difference. If the net weave is not uniform or good or bad, this will cause the change of the aperture and affect the transfer of printing ink, the thickness of the ink film will be different Agfa, such as the uneven weaving of the net, only appears in the local, when used Should avoid this part as much as possible, do not make it affect the printing quality, jump wire refers to a certain filament in the weaving in the middle of breaking the medical packaging, forming a few centimeters off the state, if you do not pay attention you can not find this situation Defects will also affect the quality of screen printing.
2, the surface of the screen is not smooth
The polyester monofilament used for screen printing is sprayed through a nozzle, and this process produces a silk with a fairly smooth and uniform surface.
Mesh thickness is one of the determinants of the ink film thickness. The strength of a single mesh wire is determined by its tensile strength and diameter determined by digital printing, and the strength of the wire mesh is determined by the strength of the wire mesh and the wire mesh within the unit length of the wire mesh. The number is decided.
3, the uneven thickness of the screen
The net is woven from silk, and most people think that the thickness of silk is generally the same, but it is not true. Due to the change in the thickness of the mesh, a certain portion of the mesh becomes thicker or thinner, and ink thickness unevenness occurs during printing.
4. How easy it is for ink to escape the screen
In general, when screens are used, consider more drupa in this area. In the middle of prints, use high-transparency inks. The pigment particles are finer and the inks pass well. When this ink uses high-mesh screens, It can also pass the financial crisis well. In general, plastic inks pass well; for inks with high ink concentration for special purposes, although the particles are fine, their performance is still relatively poor. Gao Bao
5, the rough surface of the substrate
Under normal circumstances, during the printing process, when the surface map of the substrate is rough, the company will investigate and use fine screens, generally using lower mesh screens, such as leather, canvas, foam sheet, and wood, due to printing. The surface of the object is very rough, and the ink absorption is strong. Therefore, it is necessary to cut the mesh with a mesh with a low mesh number to ensure that sufficient ink volume passes through the mesh smoothly.
6, according to the original line of fine graphics to select the screen
Contrary to the above, under normal circumstances, high-mesh screens must be selected for fine lines.
7, when choosing the screen also consider the cost
Under the premise of satisfying the printing requirements, try to use wire mesh products with lower prices.
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