Printing Ink Raw Materials Resins These are commonly referred to as binders or carriers. Their prime function is to carry the pigment to the substrate and anchor it there. The choice of binder can also impart physical properties to the final ink film e.g. hardness, gloss, water resistance, chemical resistance, resins are normally either dissolved in or dispersed in a solvent to give a fluid product. This fluid product is usually referred to as a varnish. Pigments these are the colorant of the ink and are chosen to give the correct color (or hue). Pigments are primarily insoluble and need to be dispersed into the carrying medium (varnish). Pigments impart a large number of physical properties to the finished ink film. These properties are typically light fastness, water resistance, soap resistance, butter resistance, wax resistance. Generally speaking the greater the resistance of the pigment the more expensive the pigment is. Dyes – Dyes are different to pigments in that they are soluble in a solvent (usually alcohol or water). Dyes have high color brilliance and strength but lack fastness properties. Dyes usually high poor lightfastness. Some dyes can be lacked to form a type of pigment. This process enhances the fastness properties of the dyes. Solvents are used to dissolve resins to form varnishes. Solvents can be chosen to alter the drying speed of an ink but must be accurately balanced to provide a stable ink formulation. Common solvents are alcohols, esters, ketones. Some solvents are flammable so their use needs to be well controlled in ventilated flameproof environments. Water is also a solvent. Most resins are soluble in a range of solvents. Slip agents are used to imparting slip and scuff resistance to an ink film. Differing printing and production process require differing levels of slip from the ink.e.g a form fill & seal machine must use an ink with highest slip level so the forming bag can slide over turning bars easily. A tray for cans of drinks must have a low slip ink so that pallets loaded with goods don’t slide out of control. The ink maker can tailor make an ink to have the required slip level for the end use of the product concerned. Additives – includes antifoams, surfactants, viscosity modifiers and other ink components. These additives can be essential to some formulations but are only added where a particular property is required. The quantities of additives usually found in an ink formulation are usually 0 – 5 %.
Selling flexo water-based ink By ECAT expertise Flexo Water-based ink is one of the types of printing ink which uses in carton Boxes printing and cement sacks which is means, the users of flexo water-based ink are the organizations in another meaning, selling flexo water-based ink is B2B type, so selling product like flexo water-based ink becomes not easy because you are dealing with organizations has policy in purchasing. Flexo Water-based ink has some physical and chemical properties should the seller of know it well to be able to present his product to the customer in proficiently way specially the buyer has good knowledge about what he purchases, also there are many applications of water-based ink in another meaning a lot of users of flexo water-based ink like corrugated carton printers, cement sacks manufacturers, tissue paper manufacturers,…. knowing the characteristics Seller of flexo water-based ink as we mentioned should know more about characteristics of flexo water-based ink especially physical properties which act the main factors during printing like viscosity, color strength, specific gravity and so on, Because of the users of flexo water-based ink want to discuss all these details and features with the seller that’s why should his ability to discuss this technical information so, nowadays most of the water-based producers insist to train selling staff technically to able to talk not only talk but solve problems sometimes which face the users of water-based flexo ink . On another hand, the seller of flexo water-based ink should have talent and should attend some training to improve his ability to present and improve his skills in selling. Collecting data about flexo water-based ink users become very easy by using internet, social media, associations, trading and industrial chambers.
What are the main features should be involved in selected flexo plates or flexo cyrel for water-based ink? By ECAT expertise the flexo plates are thing that helps you to print the image and text sharper Durability: to keep continue producing your order without any changes for your long run. Dimensional Stability: to obtain the actual sizes for your prepared design. Productivity: to select your flexo plate that matching your orders for qualitative & quantitative. Image Quality: type of selected flexo Cyrel or flexo plate for printing your design either it was central drum flexo printing machine, in line flexo printing machine or stack flexo printing machine, should match the quality of final printing you are looking to obtain depending on your fine quality, sharp dots & expressive final result for your graphic art. Safety points that should be taken while engraving flexo plates or flexo cyrel that being used during flexographic printing. – safety glasses - Gloves as a protector in the engraving room which better to be manufactured from leather to save you from used solutions & has the ability to chemical resistance – respirators • Ultraviolet protector like welding shields. Plate Cleaning after printing: After printing & finalizing your order, you will go to dismount your printing plate or flexo cyrel. You can do the cleaning by using a special brush which made from horse hair to be able to avoid surface damage of printing plate. You can use a special ready solution for cleaning from some different companies who are specialized in printing cleaning solutions. Or using the undiluted solvent as following depending on the types of used inks. Water-based Inks. • Alkaline water with a small amount liquid detergent. Solvent-based Inks. • Undiluted alcohols Ultraviolet Inks • Undiluted alcohol After cleaning, you have to keep it wrapped or covered by a particular type of paper to avoid accumulated dust or any other external environmental factors.