Polymers in solution, which improve pigment wetting and make resolubilising and cleaning easier. Polymers in emulsion or dispersion, which improve the drying, gloss, adhesion and water resistance of inks. Raw materials for printing ink formulations the raw materials for ink production are pigments, binders, solvents and additives 4. Exploring the pros and cons of water and solventbased. Contamination between solvent inks and waterbased inks creates an adversus chemical reaction that can result in the ink setting solid and then a. Waterbased inks environmentally friendly soy technology. Waterbased printing inks have been successfully used in different printing applications, all of.
Keep up with emerging materials which ease formulation of water based flexo, opv varnish, and gravure inks. Waterbased inks use water or some other solvent which does not lead to the production of ozone, as the carrier for ink. Now take a look at your daily newspaper or a trade book printed on newsprint. Waterbased ink formulations containing wax, surfactant, and defoamer additives were. The printing surface substrate type dictates what ink type it is advisable to use. Solvent based gravure, flexographic water based flexographic, gravure radiation cured uveb flexo, gravure. Solvent based, water based and uv printing inks, used in. Replace anilox roller with one of higher line count andor lower volume capacity 4. The volatilization rates for waterbased inks were considerably lower than those for solventbased inks, but the stack releases were higher because the use of an oxidizer was not anticipated. How ph monitoring improves print and color quality of. Request pdf printing ink formulations this chapter is focusing on. Flexo and gravure inks the latest evolutions in the formulation of flexo gravure inks mainly concern water based inks. Customized water and solvent based flexo inks and coatings for printing and anything. Custom flexo ink, solvent ink, waterbased ink, gcmi.
How to convert your solventbased ink to waterbased ink. If so, the publishers bought the best standard dispersions ink at below our competitors price for similar products. Printing ink suppliers voluntarily provided the ink formulations, which represented the three primary flexo ink systems in use at the time. Environmental protection agency epa 744r02002 april, 2002 developed in partnership with the following associations. Hence, waxes are often classified as surface conditioner additives. Reduce ink colorant strength with balanced extender 3. Solvent based inks are used for printing in two distinct technologies gravure print and flexo print. Here are four common problems that can occur with your flexographic ink, including known causes and how you can potentially correct each one. An evaluation of flexographic inks on wideweb film.
Selection guide for solvent based flexible packaging inks. Water based inks will run on most flexo presses currently running solvent based inks with few or no modifications. Water based flexographic lamination ink systems developed to work with a solventless, water based and uv adhesive systems. Whether the inks are water based or solvent based, for surface print or lamination, basf offers ink formulators a broad portfolio of high quality, high performance resins, resin solutions, and formulation additives for a wide range of flexible packaging inks. Another classification of solvent based inks is in accordance to the type of print and.
How ph monitoring can improve print and color quality of waterbased ink water based inks for printing have gained traction as an environmentally friendly alternative printing ink. On paper raw materials parts ebecryl 605 50 ebecryl 7100 10 tpgda 16 pi 5 aerosil 200 2 pigment paste 20. Printing ink formulations request pdf researchgate. Water based ink formulations containing wax, surfactant, and defoamer additives were prepared and printed on polyethylene film substrates. A cleaner technologies substitutes assessment ctsa evaluated solvent based, water based, and ultravioletcured ink systems as printed on wideweb film substrates. New emulsions resin water suspensions enable new water based inks to be formulated, providing alternative solutions to solvent based inks and thereby limiting problems linked to the environment emissions of vocs and the. Characterisation of waterbased flexographic inks and. New hybrid water based ink formulations are allowing higher than ever adhesive bond strengths with current lamination technologies. Check and adjust ph then reduce viscosity to proper level 2. Analysis and optimization of waterbased printing ink formulations for polyethylene films. Waterbased flexographic inks for corrugated printing. Analysis and optimization of waterbased printing ink formulations. Water based inks are currently a viable option for flexographic printers with performance capability that rivals solvent based inks, but the acceptance of water based inks depends first on the equipment printers are already using and the substrates they are printed on as well as the enduse characteristics to which the product will be subjected. Different inks are produced to suit these different conditions.
Soy based flexographic ink for linerboard printing scholarworks. Cleaning of solvent inks for flexo home cleaning of water based inks for flexo cleaning of solvent inks for flexo for cleaning solvent inks, also for water based ink and uv ink, n t s offers a range of nontoxic cleaning products that are concentrated and biodegradable, used for cleaning solvent inks, printed in full color or solid color. In water based inks, two types of acrylic polymers are used. The calculated volatilization rates of the solventbased inks were considerably higher than those for the other two ink systems. One vehicle is solely based on emulsion polymer, another contains solution polymer, and the third is a 5050 blend of these two. Product and company identification product name thermochromic water based flexo ink additional names none description temperature sensitive color change ink. The basics of flexible packaging printing flexography rotogravure presented by. Historic inks that are based on ethanol are just too fast drying fast drying will lead to. Epa design for the environment program economics, exposure, and technology division office of pollution prevention and toxics 7404 u. Minimize unnecessary water addition by the operator and from the water left in the ink system after washup. Water based pigment dispersons for the printing ink industry. Custom flexo ink, solvent ink, water based ink, gcmi guides, and specialty products. Solventbased inks have not been able to provide the highsolids ink required by epa standards.
Inx water lamination inks demonstrate exceptional film adhesion, excellent bond strength, superior strength and excellent water resistance. The volatilization rates for waterbased inks were considerably lower than those for solventbased inks, but the stack releases were higher. The use of f umaric rosin to form flexographic inks instead of polyurethane was novel. I have been involved in water based ink evaluation since its unclear begin nings in the. This study assessed the performance, environmental, human health, and cost aspects of 45 ink formulations. They enable line work printability of up to 800 line aniloxes and process work. Basically similar to rotary letterpress printing it uses a raised printing surface made of. Pigments colour the ink and make it opaque resins bind the ink together into a film and bind it to the surface. The focus was on formulating inks for linerboards, because linerboard is a substrate printed with 100% water based ink formulations, and the linerboard packaging sector is growing rapidly. Offering increased flexibility, heubach pigment preparations streamline processes and the manufacturing cycle of water based liquid inks, enabling you to respond quickly to customer demands without compromising quality or performance. Ink develomentsp for high speed printing sun chemical. Water based printing inks are one of the most environmentally friendly products on the market today. The carrier must represent at least 75% of the liquid volume of the ink as applied.
Evaluation of flexographic inks on wideweb film summary. Evaluation of flexographic inks on wideweb film summary booklet. Soyflex water based inks are the beginning of a greener and cleaner tomorrow in the flexographic printing industry. A waterbased ink is an ink that has either the pigments or the dyes in a colloidal suspension in a solvent, with the solvent being water. Safety data sheet water based flexo ink 1 of 5 msds009 revision 3 revision date 06242015 1. Enter your mobile number or email address below and well send you a link to download the free kindle app. The commercial waterbased inks that were used in both studies vary in type of pigment and acrylatepolymer vehicle, and in pigmentvehicle mixing proportions. It often means modification to the anilox rolls because a shallower, more open cell structure is required to print water based inks. Learn more about pcr black water based flexographic inks for corrugated printing. Screen inks are being used on a wide variety of substrates.
Water based inks provide an ideal solution for sensitive applications such as those involving food. Packaging inks and coatings products inx international. There main types of flexographic ink are water based, solvent and uv curable. When selecting a suitable defoamer, special attention has to be paid to the balance between. Pdf analysis and optimization of waterbased printing ink. Instead of emitting volatilized chemical solvents, water evaporates from ink leaving behind pigments. The water based inks are characterised by the presence of amines in the formulation and have a flexoexpert 20180728t10. Water based flexo printing inks available in rich gold, rich pale gold, pale gold, silver and in pantone colors.
Introduction to flexographic printing and its use in packaging. Solvent based inks include pigment and resin binder, together constituting the solid component of the ink, diluted using a solvent. Each type of ink has its advantages and disadvantages, therefore the type of ink used in printing is determined by factors such as price, speed, and the use of the packaging food, cleaning, or shopping bags. Spanning over three decades, flexo technologies is a privatelyowned, southern california based manufacturer of top quality water based adhesives, inks, coatings and bases for a variety of applications in the paper converting and printing industries. Preparation and characterisation of flexographic inks. All though the main solvent in waterbased inks is water, there can also be other cosolvents present. Surface phenomena and additives in waterbased coatings. Standard test methods for adhesion, rub resistance, and gloss were done on the printed polyethylene films. The use of water based inks can be a marketing advantage for converters selling to environmentally. If the color pops off the beautiful paper, theres a good chance the gravure inks are by greenville.
Keep up with emerging materials which ease formulation of water based flexo, opv varnish, and gravure inks for plastic substrates. Options for cleaner flexo inks european commission. Analysis and optimization of waterbased printing ink. The dfe booklet, developing cleaner ink formulations. Then you can start reading kindle books on your smartphone, tablet, or computer. Flexo technologies ink and coatings for the packaging. Quantitative methods for the assessment and evaluation of the three print properties were developed. Cleaning of solvent inks for flexo nts chemicals for. Pdf waterbased ink formulations containing wax, surfactant, and defoamer additives were prepared and printed on polyethylene film. Solvent based flexible packaging inks flexible packaging has now become popular in various industries ranging from consumer products to industrial applications. Contamination between solvent inks and waterbased inks creates an adversus chemical reaction that can result in the ink setting solid and then a major cleaning of anilox. W510 series water based flexo inks have been formulated to meet the needs of shrinksleeve and lamination applications. Corrugated, cracking, defect, water 0 comments dot dipping in anilox.
With superb press stability, high run speeds, and excellent color strength this ink system is sure to meet the needs of todays flexographic printers. Minimize the agitation of the ink caused by the system used for the ink circulation. The present book is devoted to recent developments and trends in water based coating and ink technology. What the infographic above also shows is a direct comparison between the formulation of a solvent ink versus the formulation of a water based ink, and the reason this is significant is that you can see just how much solvent is replaced by switching to water based ink. Both flexographic and gravure printing methods are used for flexible packaging printing. Some waterbased and uvcured ink formulations demonstrated improvements in worker safety, reduced concerns for health and environmental risk, and lower. The use of f umaric rosin to form flexographic inks instead of. Use an ink formulation that is less sensitive to foaming e.