What is the properties of polymers and plastics?
Some of the useful properties of various engineering polymers are high strength or modulus to weight ratios (light weight but comparatively stiff and strong), toughness, resilience, resistance to corrosion, lack of conductivity (heat and electrical), color, transparency, processing, and low cost.
Does ink work on plastic?
Inks made from alcohol are fast-drying, highly pigmented, and alcohol-based inks that are great for use on any hard, non-porous surface, such as glass, metal, plastic, ceramic, stone, leather, and polymer clay. Inks can be layered because of their transparent properties.
What is the chemical composition of pen ink?
The average ballpoint pen’s ink is composed of dye or pigment particles – carbon black for black pens, eosin for red, or a suspected cocktail of Prussian blue, crystal violet and phthalocyanine blue for the classic blue pen – suspended in a solvent of oil or water.
What are the elements of ink?
Ink and many pencil media are composed of three primary elements: colorants, carriers, and additives.
- Colorants largely determine the color and light sensitivity of the media.
- Carriers bond the pigment or dye and allow them to be fixed onto the paper surface.
What happens to polymers when heated?
The effect of temperature change on polymers When heated, the polymers will first become flexible before melting. This is due to their structure. When the glassy material is heated, the polymer chains will reach a temperature at which they can move relative to each other (the glass transition temperature Tg).
Do polymers expand or contract when heated?
The extent to which the polymer expands or contracts when heated or cooled. As a result, polymers can expand by differing amounts in different directions.) Crystallinity. The extent to which the polymer chains are arranged in a regular structure instead of a random fashion.
What is the purpose of PVC ink?
R Blue colour PVC (Polyvinyl Chloride) ink provides vibrant colours, great coverage, consistent work-ability every time. It’s very easy to use. Ideal for printing on Bags like Cotton Carry bags, Non-woven carry bags, polyester Carry bags. paper-like Wedding Card, Visiting Card plastic, Wood etc.
Can you alcohol ink plastic?
Alcohol ink can work very well on plastic and produce some excellent looking artwork but you have to keep in mind that there are actually seven different types of plastic that are used for various things. Some types of plastic will also need you to use a primer on them prior to applying your alcohol ink too.
Is pen ink bad for the environment?
Also, the ink of a pen is often made up of some chemicals which are toxic to the environment. Most times, when we think that we have exhausted the ink, there are still traces here and there, which, when disposed of to the landfills, can leach to the soil or even the groundwater and pollute it.
Is pen ink water soluble?
An ink’s color comes from either a dye, which can dissolve in water, or a pigment, which is water insoluble. Carbon black, a pigment derived from coal and oil, is an essential part of black ballpoint pen ink.
What are the properties of ink?
INK PROPERTIES. There are three basic groups of ink properties: optical properties, structural properties, and drying characteristics. An ink’s color is a function of the pigment used, and an ink’s other optical properties are primarily determined by the pigment characteristics.
What is the properties of mixture of ink?
All of the inks that are mixtures are homogeneous mixtures because they are consistent throughout- until you separated the colors using chromatography you could not tell that it was a mixture because the mixture was evenly distributed. Did this lab use physical or chemical properties?
Why does inks stick to paper?
Ink sticks to paper because it has a high affinity for the medium it’s being applied to. To group things into simple categories we could say, there are hydrophobic inks (non-polar inks that don’t like water) and hydrophilic inks (polar inks that do like water). As with the inks, surfaces can also fall into this category.
What is runnability and rewettability in ink?
Runnability, drying rate, adhesion and appearance are all important in ink formulations depending on application, substrate and printing process. For example, MCP’s resin supported emulsions (RSE) provide excellent runnability or rewettability on gravure and flexographic printing presses.
What happens when ink is thrown on a surface that doesn’t like?
When ink is thrown onto a surface that it doesn’t like, it aggregates, clumping together to avoid all interaction with the surface. A simple illustration showing why this is unfavorable can be seen with water interacting with lipids. In the picture below, water is forming ordered cages around the hydrophobic part.
What are the advantages of acrylic polymers for flexographic printing?
Gellner Industrial’s acrylic polymers, when used in Flexographic printing inks, provide superior adhesion to non-porous surfaces such as vinyl, polypropylene, metals and glass. Our specially formulated acrylic polymers also offer notable alkali resistance, while maintaining excellent press open time for Flexographic printing inks.