A tensioning frame for tensioning a printing screen comprises struts to reinforce the constituent beams. These may be provided either on a supplementary brace plate or integrally formed with the beam. A shaft may be used to retain engagement bodies within pockets formed in the beam.

A tensioning frame for tensioning a printing screen comprises struts to reinforce the constituent beams. These may be provided either on a supplementary brace plate or integrally formed with the beam. A shaft may be used to retain engagement bodies within pockets formed in the beam.

Disclosed is a precision cut printing screen in which the features of a printing pattern are defined on a sheet material by a plurality of apertures within a target printing boundary. Also disclosed is a method of making the printing screen.

The present disclosure relates to surface modification of solder paste stencils to provide improved adhesion of a functional coating. The disclosed surface modifications include laser structuring, plasma treatments, and primers. Methods of using the solder paste stencils are further disclosed.

A screen plate and a manufacturing method of the screen plate, provided for solving a problem of glass cement being thicker at the center and thinner at the border during printing glass cement by use of the screen plate in the prior arts and an inclination of burr generated at the borders. In the screen plate, a pattern layer comprises a plurality of openings, each of which comprises at least two sub-openings which have horizontal dimensions gradually decreasing in a vertical direction from a side close to the screen to a side away from the screen, so that a blade can squeeze the glass cement through a region of the screen corresponding to the sub-opening closest to the screen and further squeeze the glass cement through the plurality of the sub-openings having gradually reduced horizontal dimensions, thereby achieving a uniform output amount of the glass cement at the sub-opening farthest from the screen and eliminating the burr at the border of the printed pattern of the glass cement.

A screen plate and a manufacturing method of the screen plate, provided for solving a problem of glass cement being thicker at the center and thinner at the border during printing glass cement by use of the screen plate in the prior arts and an inclination of burr generated at the borders. In the screen plate, a pattern layer comprises a plurality of openings, each of which comprises at least two sub-openings which have horizontal dimensions gradually decreasing in a vertical direction from a side close to the screen to a side away from the screen, so that a blade can squeeze the glass cement through a region of the screen corresponding to the sub-opening closest to the screen and further squeeze the glass cement through the plurality of the sub-openings having gradually reduced horizontal dimensions, thereby achieving a uniform output amount of the glass cement at the sub-opening farthest from the screen and eliminating the burr at the border of the printed pattern of the glass cement.

A printing screen and a sealant printing method are provided. The printing screen includes a frame, a mesh/screen fixed on the frame, and a film formed on the mesh. The portion of the mesh that is not covered by the film forms a feeding port in a rectangular ring shape. The rectangular ring includes two opposite first sides and two opposite second sides. The width of an upper opening of the cross section across the first sides is less than or equal to that of an upper opening of the cross section across the second sides. At a first height, the area of the cross section across the first sides is greater than that of the cross section across the second sides, the first height being less than the thickness of the film. The printing screen and the sealant printing method solve the problem of poor height uniformity of sealants.

A printing screen and a sealant printing method are provided. The printing screen includes a frame, a mesh/screen fixed on the frame, and a film formed on the mesh. The portion of the mesh that is not covered by the film forms a feeding port in a rectangular ring shape. The rectangular ring includes two opposite first sides and two opposite second sides. The width of an upper opening of the cross section across the first sides is less than or equal to that of an upper opening of the cross section across the second sides. At a first height, the area of the cross section across the first sides is greater than that of the cross section across the second sides, the first height being less than the thickness of the film. The printing screen and the sealant printing method solve the problem of poor height uniformity of sealants.

A thermal stencil making unit that makes a stencil of a perforated image on a thermal gauze by moving a thermal print head having the plurality of heat elements relative to the thermal gauze tightly stretched in a gauze frame detachably set in a unit housing, includes a head-protecting member that moves between a protection position where the thermal print head is protected and a protection release position where a protective state is released. The thermal stencil making unit moves the head-protecting member to the protection position when the gauze frame is not set in the unit housing and moves the head-protecting cover member from the protection position to the protection release position, in conjunction with an operation of setting the gauze frame in the unit housing.

A photosensitive stencil includes a porous stencil carrier that can be a sheet of woven material with crisscrossing filaments. The stencil carrier is coated with a photopolymer emulsion that is water based to form a stencil blank. In use, a light mask is disposed atop the stencil blank. The light mask can be contained on a sheet of paper or a transparent film. Alternatively the stencil blank is fed through an inkjet printer and the light mask is printed directly onto the stencil blank using common inks. The stencil blank is then exposed to light for a few minutes, which cross-links the photopolymer emulsion in unmasked regions. After exposure, the stencil blank is developed by being washed out with water. The water removes emulsion and adhesive, where present, within areas that were masked by the light mask, revealing open or open regions through which ink or paint can be applied.