DOPSING 3 colors label ribbons/cotton tapes automatic screen printing machine

DOPSING 3 colors label ribbons/cotton tapes automatic screen printing machine

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DOPSING 5 colors satin ribbons/clothing label/cotton tapes automatic screen printing machine

DOPSING 5 colors satin ribbons/clothing label/cotton tapes automatic screen printing machine

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Study together with our dear friends from Sri Lanka

Study together with our dear friends from Sri Lanka

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DOPSING DS-301 Single color Adidas cotton tapes automatic silkscreen printing machine

DOPSING DS-301 Single color Adidas cotton tapes automatic silkscreen printing machine

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Indirect Plate-Making Method

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show the indirect film to be exposure at the first beginning, then to go through development by using warm water after sclerosis enhancement by 1.2% H202 solution,You will get a stripping graphics film after drying,The plastic film surface of Graphics film should be pressed closely against a tightly stretched net during plate making. 

Then to make the plastic film stick closely to the wet net by squeezing.Take off film base, 

Finally get a net plate by wind drying.

Direct Plate-Making Method

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Firstly the side of photographicsensitive film of wrist support coated by sensitive material should be upward and placed on the workbench, 

Secondly,the net frame that is tied up with wrists will be put on the surface of film base,

then add photographicsensitive pulp inside the frame and plastic coating will be pressed 

increasingly by the flexible steel blade.

Then Plastic film base will be taken away since it has been fully drying after above steps.

The net with adhensive photographic film wrist on its surface can be used for exposure at this time. 

Finally,a new screen net has been finished after reaction from development and drying.

Clothing label/Garment label/Apparel label automatic screen printing machine

Clothing label/Garment label/Apparel label automatic screen printing machine

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#garmentlable  #labelprinting  #clothtagprinting  #apparellabel  #wovenlabel  #satinribbons

Running theory of screen printing machine

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There is a layer of photosensitive adhensive with high concentration nitrogen on the top of screen mesh plate, which has an exposure reaction with film closely, the part that is not photosensitive will shed from the shadow at this time, then it presents screen mesh which can make ink pass through. Screen mesh plate will be coated a layer of Ink normally before printing running. Then a scraper will automatically be scraping screen mesh plate to extrude ink. Finally the Ink will be transfered to the surface of the materials. That means you can make different beautiful paintings on the surface of many kind of materials, such as Clothing label/narrow fabric/elastic tapes,luggage webbings,lashing straps/heavy duty webbings,woven label,satin ribbon,lanyard etc.

DOPSING DS-302B Single color lashing straps/luggage webbings automatic screen printing machine

DOPSING DS-302B Single color lashing straps/luggage webbings automatic screen printing machine

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The basic skills and the use of screen printing Ink’s color adjustment

The basic skills and the use of screen printing Ink’s color adjustment

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Screen printing workers must adjust used ink by following below steps:

a. To understand all kinds of specification and performance of Ink, which makes it meet with production need.

b. Have a good command of basic knowledge of color, be skillful during ink handling.

c. Analysis of color adjustment and process skill of printing,Identify color of color sequence, In order to avoid incorrect color sequence, both miscible and color change.

d. Pay more attention to Ink’s color intensity when ink adjustment.

Adjusting by the original color as much as possible if the required Ink’s intensity is larger. Otherwise it becomes grey easily, then it cuts down the Ink’s original intensity.

Appropriately printing adjustment of Ink

Viscosity of factory ink usually is slightly large, user should make comprehensive adjustments for ink viscosity, surface tension,fluidity and drying speed according to the characteristics of printing graphics, screen mesh, printing speed,workshop temperature, Substrate’s surface tension and ceiling inking performance, Proper Solvent, diluent, surface active and viscosity reducing agent are very good options in this case.

For example,you should get slightly smaller fluidity and lower drying speed Ink when printing thin line or dots.you should use larger viscosity and higher drying speed Ink when printing thick mesh. Fluidity can be slightly larger and drying speed also can be higher when printing in high speed. Drying speed should be lower and viscosity should be slightly larger when the temperature in workshop is too high. Ink’s surface tension should be smaller when Substrate’s surface tension is small. Ink’s fluidity and surface tension should be larger, and drying speed should be lower when Substrate’s surface ceiling ink performance is in very good condition.

Remark: All related tech knowledges are abstracts from DOPSING PRINTING