END RUN Print Brightening Converter

$26.08

END RUN Print Brightening Converter changes the invisible ultra-violet (UV) light reflected from a print’s surface into visible white light, increasing the total visible reflectance and brilliance of the print’s whites without bleaching.

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SKU: PB000_W Category:

Description

END RUN Print Brightening Converter

END RUN Print Brightening Converter changes the invisible ultra-violet (UV) light reflected from a prints surface into visible white light, increasing the total visible reflectance and brilliance of the print’s whites without bleaching.

The same brightening agent is incorporated in some printing papers, but can be lost during processing and washing. END RUN Print Brightening Converter adds to or replaces these built-in brighteners after the final wash.

Print brightening can increase the archival permanence of prints by shielding them from UV light, which might otherwise cause image and paper deterioration. Print brightening will make some warmtone papers appear cooler in color.

How to Mix

END RUN Print Brightening Converter should be used as an additive to END RUN Wetting Agent & Stabilizer.

Dilute END RUN Wetting Agent & Stabilizer superconcentrate 1:99 with water as directed by instructions for using END RUN Wetting Agent & Stabilizer. To each liter of Wetting Agent working solution, add 1-50 ml END RUN Print Brightening Converter concentrate.

For example:
>10ml END RUN Wetting Agent Superconcentrate
+990mlWater
20mlEND RUN Print Brightening Converter Concentrate
=1020mlEND RUN Print Brightening Converter Working Solution

The visible effect of brightening varies with the type of paper, water quality, processing methods, and the amount of UV available for reflection in the viewing light source. To compensate for these factors, the strength of the Print Brightening working solution may be adjusted by changing the amount of END RUN Print Brightening Converter concentrate added per liter of END RUN Wetting Agent working solution.

Examples:
  • For fiber-based prints, add 1-20 ml Converter per liter.
  • For RC prints, add 10-50 ml Converter per liter.
  • For some processes, especially non-silver printing on hand-sensitized paper, Print Brightening Converter concentrate may be added to plain water instead of END RUN Wetting Agent working solution. Add 1-20 ml per liter of water. It is good practice to use distilled or deionized water.
  • Excess Print Brightener may be removed gradually by water washing.

How to Use

After the Final Water Wash, immerse for 1-3 minutes with constant agitation, following the procedure in the instructions for END RUN Wetting Agent & Stabilizer. Sponge squeegee and dry as usual.

Basic Procedures

StepProcedureTimingRange
1Final Water Wash5 minutes1-10 minutes
2END RUN Print Brightening Converter1 minute1-3 minutes
3Sponge & Dry

Use at the same temperature as other solutions in the process, 18-30°C / 64.5-86°F. Agitate continuously for the first minute in working solution, and then for 10-15 seconds of each minute.

 

Additional information

Weight N/A
Dimensions N/A

Capacity & Shelf Life

Capacity & Shelf Life

END RUN Print Brightening Converter working solution has the same capacity and shelf life as END RUN Wetting Agent & Stabilizer working solution.

Stored with or without air in the container, END RUN Print Brightening Converter superconcentrate alone has a shelf life of at least 2 years.