TWM454933U - Screen plate structure - Google Patents

Description

Screen structure

This creation relates to a screen structure, in particular to a screen structure which can improve the displacement of precision printing and can reduce the amount of ink permeation in a partial area.

The screen structure is an important tool for screen printing, and it can also be said to be an important basis for screen printing. It is mainly made of Tedron fiber, nylon fiber or metal mesh cloth, which is cross-woven in the warp and weft directions. A certain tension is opened and fixed on a frame. In addition to forming the pattern, the screen version also controls the amount of ink that can be transmitted during screen printing; therefore, the screen will produce precision for printing, thickness of ink, authenticity of color, and penetration of ink. Very big impact.

The printing principle of screen printing is to use the chemical reaction of the emulsion to the ultraviolet light and the opening formed by the warp and weft of the screen to perform photosensitive plate making, so that the non-printed portion is photohardened to block the mesh, and In the printed part, the emulsion is dissolved and hollowed out when it is not chemically reacted. When screen printing is performed, the operator can apply pressure by the doctor blade to scrape the ink, so that the ink is printed on the printed matter through the hollow mesh to achieve the printing purpose. However, the current screen is not fixed because of its latitude and longitude interlaced portions, and it is easy to be displaced due to the pressure applied by the blade during precision printing, thereby affecting the quality of printing. In addition, the conventional screen printing can not reduce the amount of ink permeation in a local area during printing, so that the amount of materials such as ink and slurry is increased, and the area where the amount of ink is to be reduced cannot be highlighted, thereby causing operation. This is an increase in the invisible, and it is impossible to achieve the gradient printing effect.

Based on the above reasons, the purpose of the present invention is to provide a screen structure having a fixed net knot, which can reduce the displacement of the screen in precision printing, reduce the amount of ink permeation and film thickness in a local area, and achieve the effect of progressive printing. And the purpose of reducing costs.

The present invention is characterized in that a screen structure composed of a plurality of warp threads and a plurality of weft threads is provided, and a warp and a weft line are interlaced to form a fixed net knot by physical or chemical deposition, and the net knot has Thicker than the warp and weft. Through such a structure, the displacement of the screen can be reduced during precision printing; in addition, such a thick fixed net structure can be formed locally on the screen, thereby also achieving the progressive printing effect. Reduce the amount of materials used in inks, slurries, etc., thereby reducing costs and increasing product competitiveness.

The technical means of the present invention provides a screen structure for precision printing, which comprises a plurality of warp threads each having a first wire diameter; a plurality of weft threads each having a second wire diameter; wherein the The wire and the weft are woven in a staggered manner to form a screen structure having a plurality of openings, and wherein each of the warp threads and each of the weft threads are fixed and each forms a net knot The mesh knot has a third wire diameter that is greater than the first wire diameter and the second wire diameter.

The warp and weft threads provided by the creation may be composed of a mesh structure of Tedron, metal mesh, plastic or other materials, and are fixed to a frame frame with a certain tension to form the screen. .

The first line diameter and the second line diameter of the screen structure provided by this creation The inch is between 0.012 and 0.025 mm, the size of the third wire diameter is between 0.014 and 0.030 mm, and the length of the plurality of openings is between 0.045 and 0.060 mm.

100‧‧‧Web structure

10‧‧‧Weft

20‧‧‧ warp

30‧‧‧Net

7‧‧‧ openings

B‧‧‧first line diameter

C‧‧‧second line

D‧‧‧ third line diameter

The first figure is a perspective view showing the weaving manner of the screen structure of the present invention; the second figure is a top view showing the first embodiment according to the present creation; and the third figure is a top view showing the second embodiment according to the present creation.

The implementation of the present invention will be described in more detail below with reference to the drawings and component symbols, so that those skilled in the art can implement the present specification after studying the present specification.

The first figure is a three-dimensional schematic diagram showing the structure weaving method of the original screen. The second way is to display a top view of the first embodiment according to the structure of the present screen. As shown in the first figure and the second figure, the screen structure 100 for precision printing provided by the present invention includes a plurality of warp threads 20 each having a first wire diameter b; a plurality of weft threads 10 having a first The second wire diameter c; wherein the warp threads 20 and the weft threads 10 are woven in a staggered manner to form a screen structure 100 having a plurality of openings 7, as shown in the first figure. The screen structure 100 provided by the present invention is characterized in that each of the warp threads 20 and each of the weft threads 10 are fixed and each forms a net knot 30, and the net knot has a larger than the first wire diameter b. And a third wire diameter d of the second wire diameter c.

In the first embodiment of the present invention, the warp 20 and the weft 10 may be composed of a mesh structure of a Tedron, a metal mesh, a plastic or other materials, and are fixed to the mesh with a certain tension after being staggered into a net. A frame (not shown) is formed to form a screen.

The manner in which the screen structure according to the first embodiment of the present creation is formed will be described below. First, the warp 20 and the weft 10 are woven into a web in a staggered manner, as shown in the first figure. Shown. In the present embodiment, the warp threads 20 and the weft threads 10 of the stainless steel material are used. However, any material which can constitute the mesh structure belongs to the protection scope of the present invention. Next, a process of fixing the braided mesh is performed, and portions where the warp 20 and the weft 10 are interlaced are separately fixed to form the net 30. Finally, the portion of the mesh 30 and the width of the wire diameter are widened by physical or chemical deposition to form the screen structure 100 of the present invention.

In the first embodiment, the first wire diameter b and the second wire diameter c are between 0.012 and 0.025 mm, and the third wire diameter d is between 0.014 and 0.030 mm, and the length of the plurality of openings 7 is long. Between 0.045~0.060 mm. It can be seen from the above data that after the deposition process, the size of the third wire diameter d is larger than the size of the first wire diameter b and the second wire diameter c, and the sizes of the first wire diameter b and the second wire diameter c are compared with each other. The wire diameter without sedimentation is large.

According to the screen structure 100 of the first embodiment of the present invention, since the warp threads 20 and the weft threads 10 are fixed by the mesh knots, the screen displacement is caused by the unfixed intersection of the warp and weft threads 20, 10 during the precision printing. The situation has improved. In addition, since the first wire diameter b, the second wire diameter c, and the third wire diameter d are both coarser than the wire diameter of the untreated latitude and longitude lines after the processing of the wire mesh 30 by physical or chemical deposition, the opening 7 is also That is to say, the area of the ink-permeable port of the screen plate becomes smaller, so the ink-transparent amount of the screen plate becomes lower, thereby achieving the effects of changing the printing effect, changing the electrical properties, reducing the amount of materials such as ink, and saving the operating cost during printing. .

The third figure is a plan view showing a second embodiment of the present creation. The structure of the screen of the second embodiment is basically the same as that of the first embodiment, except that in the second embodiment, only the partial screen is subjected to deposition processing, that is, the net 30 and its wire diameter are added. Rough processing, such that the partial screen has a thickened knot 30 and a thick warp and weft as compared to the untreated strand; The screen diameter of the latitude and longitude lines 20 and 10 of some screens maintains their original size. It is worth noting that in the unscreened portion of the screen, the line diameter of the intersection of the latitude and longitude lines 20 and 10 is still larger than the original size, but smaller than the thickened net 30. As shown in the third figure. The reason is that the intersection of the latitude and longitude lines 20, 10 of the portion is not thickened by the deposition process, however, due to the step of squeezing during the process of thickening the partial screen, the part is still made The intersection of the warp and weft threads 20, 10 is thicker than the untreated screen structure.

According to the screen structure of the second embodiment, in addition to the advantages and characteristics of the screen structure according to the first embodiment described above, the effect of the gradation printing can be achieved at the time of printing.

It can be seen from the above embodiments that the screen structure provided by the present invention has industrial use value, but the above description is only a description of the preferred embodiment of the present invention, and those skilled in the art can according to the above description. Other improvements are required, but these changes are still within the spirit of this creation and the scope of patents defined below.

100‧‧‧Web structure

10‧‧‧Weft

20‧‧‧ warp

30‧‧‧Net

7‧‧‧ openings

B‧‧‧first line diameter

C‧‧‧second line

D‧‧‧ third line diameter

Claims (8)

A screen structure having a plurality of warp threads each having a first wire diameter; a plurality of weft threads each having a second wire diameter; wherein the warp threads and the weft threads are woven in an interlaced manner to form The screen structure having a plurality of openings, wherein each of the warp threads and the weft lines are fixed and each forms a net knot, the net knot having a larger than the first wire diameter and the first A third line diameter of the second line. The screen structure according to claim 1, wherein the warp threads and the material of the weft lines are Tedron. The screen structure according to claim 1, wherein the warp threads and the weft threads are made of metal. The screen structure according to claim 1, wherein the warp threads and the weft threads are made of plastic. The screen structure according to claim 1, wherein the warp threads and the screen structure formed by the weft lines are fixed on a frame. The screen structure according to claim 1, wherein the first wire diameter and the second wire diameter are between 0.012 and 0.025 mm. The screen structure according to claim 1, wherein the third wire diameter is between 0.014 and 0.030 mm. The screen structure according to claim 1, wherein the plurality of openings have a side length of between 0.045 and 0.060 mm.