CCI D-White Pure White Discharge Ink
D-White is an extremely bright white waterbase discharge ink. Suitable fabrics are easily discharged producing an extremely soft-hand. D-White can be used as an opaque underbase, highlight white, or can be used with pigments. D-White can be used in conjuction with other ink systems to produce multiple effects. D-White's rheology and flow characteristics allow it to be printed with high mesh counts. This produces very fine imade detail and a softer finish. Don't forget 4-6%
activator agent must be mixed in to this ink in order for the discharging process to occur! Once activator has been added, shelf life is around 6 hours so try to only mix as much as you need for your print job.
Advantages
- Super bright white
- Exceptionally soft hand
- Low odor
- PVC and Phthalate free
- Easy clean-up
- Slower dry time in screen
- Recommended Mesh: 110-230
Preparation
Tip: If using a small to mid-size conveyor dryer with low air flow, we recommend mixing D-White 50/50 with D-Base prior to adding activator. Since it is so heavily pigmented, less efficient dryers will have a hard time properly discharging D-White that hasn't been cut with D-Base.
Screens must be prepared with water-resistant emulsion to prevent stencil breakdown on press. Post-hardening the stencil is recommended for long print runs. Stir in 3-6% by weight, D-Powder Discharge Activator and mix well. Different percentages of the activator will yield different results. Mix only enough for current production requirements. Activated D-White should be used within 8 hours of mixing. If using CMS pigments, you can add 1-10% pigment to the base depending on desired shade. D-White may be thinned with water if a lower viscosity is required, up to 10% max.
Application
The screen mesh count being used will determine how much squeegee pressure should be used. Typically heavy squeegee pressure is preferred. Print wet-on-wet without flash curing. Occasionally lightly misting the screens with water during long print runs will help prevent drying in screen. The printed fabric should be cured for a minimum of 90 seconds at 320F degrees. Ideally the fabric should be. cured for 2-3 minutes at 340-350F. High volume forced air is recommended during curing. Do not allow the print to dry before curing in an oven the more moisture available, the better discharge result. Degree of discharging and color/wash fastness is dependent on proper curing. The activator will give off a strong odor, this is normal. Heat curing must be complete in order to assure the fabric does not retain the activator odor, re-curing may be required. Add CCI's WB-Retarder up to 5% to provide more open time of the wet ink to prevent drying in screens.
Clean-Up
General wash-up, on ink that has not dried up, can be done with water. CCI'S EnviroSolv should be used for an on-press cleaner and screen opener.
Note
Always pre-test for complete cure, durability, and other specific requirements. Not all fabrics are dyed with dischargeable dyes. Pigments must be stable with the discharge activator. Not all pigments will discharge properly. Certain chemical residues may remain on the printed fabrics. Fabric printed with D-Base should be either washed before packaging, or labeled accordingly to alert the buyer or customer that the garment should be washed prior to use.
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