What is aqueous coating in printing?
Aqueous coating is a clear, fast-drying water-based coating that is used to protect printed pieces. It provides a high-gloss, satin, or soft touch finish. Because it is water-based, aqueous coating is more environmentally friendly than varnish or UV coatings.
What are different coating that are available in offset printing?
The following coatings are our most popular and you’ll see that in some cases they are used in combination with another coating.
- Aqueous Coating.
- UV Coating.
- Strike-through Varnish/UV & Reticulating Varnish/UV Coatings.
- Strike-through Varnish/UV coating.
- Reticulating Varnish/UV coating.
- Soft Touch Coating.
- UV Grit coating.
What is aqueous coating made of?
Aqueous coatings are made of these basic ingredients: water, polymers, ammonium hydroxide, wetting agents, and wax, or a slip agent. The key ingredient is the polymer, since when it dries, it forms a film, which adds protection to the job.
Can you write on aqueous coating?
AQ is short for Aqueous Coating. This is a semi-gloss, environmentally friendly, water-based coating applied to the front of the printed piece. It provides additional gloss and protection, and it can be written on with a ballpoint pen. It is not recommended for products you need to write on after being printed.
What is the difference between coating and varnish?
What’s the difference between coating and varnish? They provide better rub protection than varnish and increase durability of the printed piece. These low-cost, clear, water-based vegetable cellulose coatings are applied to the sheet after the ink. Sheets with aqueous coating can be handled almost immediately.
What are the materials found in a non aqueous film coating solution?
Tablet film coating is performed by two types, one is aqueous film coating (generally water is used as a solvent) and non aqueous film coating (generally organic solvent are used). Film coating formulations usually contain Polymer, Plasticizer, Colourants / Opacifiers, Solvent / Vehicle.
What are the different methods of coating?
Typical Coating Techniques
- Dip Coating. Cost effective process provides uniform high quality coating on different shaped/sized substrates including large surface areas.
- Brushing.
- Roll Coating.
- Spraying.
- Spin Coating.
- Flow Coating.
Which polymer is used for film-coating?
The most widely used polymers in non-functional film coating are cellulose derivatives such as hypromellose. Plasticizers, used to improve the flexibility of the film formed and prevent it from cracking or breaking. They work by weakening the attraction between the polymer molecules to make the film more malleable.
What are the considerations when printing with aqueous coating?
There are considerations to keep in mind when printing with aqueous coating and to apply it throughout an entire sheet. An appropriate heaviness and text weight can prevent the paper from curling, wrinkling or losing its shape.
What is aqueous coating (AQ)?
Aqueous Coating (AQ) might sound like something NASA uses to prep their shuttles for takeoff, but in reality, it’s primary function is to protect your products as they go flying off the shelves. In the packaging and printing world, aqueous coating (also known as AQ coating) is a water-based coating that is applied to the press sheet.
What are the different types of coatings used in printing?
Types of print coating. Aqueous Coating Aqueous coating is a clear, fast-drying water-based coating that is used to protect printed pieces. It provides a high-gloss or matte surface that deters dirt and fingerprints.
What is the q8000 series of coatings?
The Q8000 series of coatings are designed for in-line application of coating through the ink train of the last printing unit. This gives any sheetfed printer the ability to substitute aqueous coating in situations where oil based varnish would traditionally be used.