Viscosity : Adjusted to customer specifications. Percent Solids : 18-30% (Dependent on fragrance oil density.)
Size: 20 microns average
1 kilogram fragrance oil equals 1 gallon printing slurry
Substrates: Paper/label, stock/paper products
Slurry use: Thoroughly mixed, straight from the container.
Clean-up: Soap & Water
Storage: Store in a sealed container between 32-80° F for up to one year after receipt.
Not Drying: Coating too heavy, adjust viscosity and/or oven Temperature. Do not over dry. This will result in an off odor. Slurry deposits dry at normal Oven temperatures at normal speeds.
Incomplete Deposit: Adjust gummer impression, deposits must be uniform and complete. Rough Deposit: Poor transfer, adjust gummer impression.
Deposit too heavy: Viscosity should be maintained between 15-25 seconds on a #5 Zahn. If it exceeds this, excessive slurry is applied and causes an appearance problem.
High Viscosity: Add water to adjust, allow water to mix in, recheck viscosity, maintain between 15-25 seconds on a #5 Zahn at 75-80°F.
Low Fragrance: Hold sheet to light and see if there is a uniform haze. The deposit should be frosty. If shiny, too little slurry is being applied. Increase the amount of slurry being applied.
Out of Registration: Adjust registration, check pad size to see that it is cut to the proper size.
Oven streak: Check oven build-up this is because the deposit is too heavy and it drags in the oven.
InstaScent™ printing slurry (commonly called Scratch & Sniff) is used for the production of fragrance promotional pieces. The product is easily identifiable as a matte finished coating which when scratched with a fingernail or the edge of a coin releases fragrance. This product manufactured by Vantage Inc. is the oldest and most cost effective way of presenting fragrances to customers.
The product is a water-based coating, which contains microencapsulated fragrance oils as well as a water-based binder system. The product is delivered to printers as a press ready coating for paper. The captive fragrance oil can be released at a later time from the microcapsule containment walls. This is done by rupturing the microcapsule walls with pressure by scratching the printed overcoat.
The material is applied to paper after ink, but prior to drying ovens. It is important to note that this water-based product must be dry before packaging. Remoistenable glue units, silk screens, or flexo stations are the most widely used machine methods of application.
Anilox: 125 Line Anilox
Metering Roller: 50-65 Durometer
Machine Speed: 200-400 fpm
Drying: Forced Air
Above 212ºF for 10-15 seconds
Coverage: 180,000 sq. inches/gallon
Screen Size: 180 mesh
Squeegee: soft round blade
Off Contact: ¼ inch
Drying: Rack dry or forced air
Coverage: 140,000 sq. inches/gallon
(depending on mesh size)
Web Offset Printing:
Glue Pad Ordering Information:
P.O. Box 1185
Effingham, IL 62401
Order Product I.D.: FGP-001200
135 thousandths thick
Preparation for Printing:
Open container and mix well. We recommend mixing with an air mixer 1/8 HP with a 3” marine prop mounted on an 18” stainless steel shaft. Mix until uniform and material is free from the bottom. Measure the temperature and viscosity. The viscosity has been pre-set between 15-25 seconds with a #5 Zahn Cup or to your specification at room temperature. We also recommend using a diaphragm pump (rather than a gear pump) to prevent rupturing the capsules.
Start up and Running:
Check to see that the pan (if used), pumps and hoses are clean of glue and previous slurry residue. The best wash-up is with hot water. The lay-down of the slurry should be full and even, with a slight frosty appearance. Check the bond. It should not scratch off. There should be a “scratching” sound when the deposit is scratched. Insure that a sufficient amount of fragrance material is being deposited onto the paper before saving any product. Deposits which are too heavy will not dry well. Light deposits may not release an adequate amount of fragrance. Make adjustments as necessary during production to maintain the correct coat weight.
What to watch during press run:
Rolls- Make sure no drive wheels or nip rolls are running over the deposits. This can rupture the capsules. Excessive oven temperatures- This can scorch and cause an off odor in the fragrance, especially if you smell an unscratched fresh sample. Stacking of Press Sheets- Press sheets should not be stacked more than 30” high. This can cause offsetting of the backside ink onto the fragrance area. Slurry- Let the slurry run low in the pails before filling. This assures fresh fragrance all the time. Change the slurry a minimum of every 3 days. The viscosity should be checked every 4 hours and held at 15-25 seconds at 75-80°F. You can add tap water to achieve this target viscosity. Low oven heat- The temperature in the oven may have to be turned up to dry the slurry. Indications of not drying include:
- Coating building up on chill rolls
- Tracking on printed sheet
- No “scratching” sound when scratched
- Fragrance offsetting
Cooling should be used on long runs (over 24 hours). If the coating temperature is allowed to go over 85°F, rapid evaporation of water from the slurry occurs, which causes an increase in viscosity. Chilled water should be used to cool the slurry. Ideal slurry range temperature is 75-80°F.