Home > MagnaTrans® Technical Guide: Water-based Heat Transfer Ink System
MagnaTrans® Technical Guide: Water-based Heat Transfer Ink System
MagnaTrans® is a range of high stretch, high performance, heat transfer inks suitable for even the most demanding of fabrics. In this blog post we take a look at the application techniques and considerations that will help you to get the most out of the system.
MagnaTrans is a range of water-based heat transfer inks, pigments, additives, and adhesives, designed as a 2-pack system to produce single and multi-coloured transfers on release coated film.
MagnaTrans inks offer excellent elasticity, soft handle, high wash durability, exceptional screen performance and runnability. The system can even be used on the most demanding high stretch synthetic fabrics such as elastane (when used in conjunction with MagnaTrans Migration Blocker).
The MagnaTrans Range
The MagnaTrans Heat Transfer Range is a two-pack system and consists of the following products:
High opacity, superior stretch, read-to-use white ink
Translucent, high stretch, ready-to-use clear ink
High performance, superior stretch, ready-to-use black ink
Dye migration blocker to prevent bleeding where dye migration is a severe problem
Water-based screen printable adhesive offering superb stretch, elasticity, and clarity for a wide range of apparel items including sportswear, workwear, and promotional garments. Meets all Domestic 60°C (140°F) wash requirements.
PU POWDER 60
|Polyurethane melt powder for use with scatter application, offering strong adhesion and elasticity. Washable up to 60°C (140°F).|
Fixer to reduce the curing times and temperature of the MagnaTrans range to 120°C (248°F) and above. Add at 3%.
Fixer to reduce the curing times and temperature of the MagnaTrans range to 80°C (176°F) and above. Add at 2%
*Suitable when lower drying temperatures are required due to substrate demands
- MagnaTrans inks are supplied in a 2-pack system consisting of separate base inks and fixing agents (Fixer or Fixer LT). Ensure that inks are mixed thoroughly prior to usage as settling may occur during transportation and storage.
- The MagnaTrans range is suitable for use on manual, semi-automatic, or fully automatic machine types.
- The optimum temperature of the printing area is 18-25°C (64-77°F) with humidity at 50-60%rh.
- For the 2-pack system to function as designed, it is necessary to add 3% MagnaTrans Fixer or 2% MagnaTrans Fixer LT prior to printing.
- Allow 24 hours after printing before applying transfers to the garment.
- A minimum of 72 hours after printing is required to ensure optimum resistances and full wash resistances.
Printing is best undertaken using 34 – 100T (86-250) screen meshes, with a 70-75° Shore Square Edge Squeegee.
Use a combination of MagnaTrans White and Neutral pigmented with Eco-Pigments to build up the transfer, ensuring the ink is fully dried in between each layer.
|Cotton, Polyester, Poly/Cotton blends||34 – 100T (86-250)||70-75° shore, square edge|
|Cure Temperature||Pigment Loading||Additives|
|60-90 seconds at 140°C (284°F)||Up to 12% Eco-Pigments||Retardant Gel Conc 5% (optional)|
|Storage||Health & Safety||Clean Up|
|In a cool place, properly closed >5°C <25°C||MSDS available on request||Wash screens with water and mild detergent|
Drying & Heat Pressing
When using MagnaTrans Fixer, the printed sheet should be dried in between layers at 140°C (284°F) for 60-90 seconds. Alternatively, if using MagnaTrans Fixer LT, prints can be dried in between layers at 90°C (194°F) for 60-90 seconds.
When producing transfers for polyester fabrics where dye migration is an issue, we recommend using MagnaTrans Migration Blocker with 3% Fixer as the final layer of ink before adhesive is applied.
Once you are happy with the transfer build-up, apply MagnaTrans Transfer Adhesive as the final backing adhesive. Alternatively, apply MagnaTrans PU Powder 60 to the final wet layer and dry accordingly.
The finished transfer can be applied to the required substrate on a heat press at 165°C (329°F) for 12 seconds, 4-6 Bar pressure, or as per adhesive instructions. Once pressed, allow it to cool and then remove the transfer film from the print.
When preparing your screens for exposure, use a screen emulsion suitable for printing with water-based inks. MagnaPrint Screen Emulsion is ideal for transfer printing. Ensure your screens are fully hardened by following post-exposure procedures.
If necessary you can occasionally spray a mist of distilled water onto your screens to ensure that the inks do not dry or clog up open mesh areas of the screens. MagnaPrint Retardant Conc can be added to MagnaTrans inks to assist in preventing screen blockages, however, this may increase your curing times.
MagnaTrans films have been stabilised during manufacture. However, due to the nature of the material, we recommend ‘pre-curing’ the film before printing for one minute at 140°C – 145°C (284°F – 295°F). This will prevent shrinkage during production when screen printing multi-colour designs.
Want to Learn More?
Interested in learning more about the MagnaTrans range and how it can support you heat transfer screen printing needs? Get in touch and download our promotional brochure for more information on the benefits of the product range.