Stamping - post-production process is finishing, coating or printing souvenirs images using foil or without pressure and high temperature.
congreve embossed
stamping is used to make greeting cards, business cards, labels, and other souvenirs.The most spectacular looks hot stamping foil, the finished material is presentable and colorful look.
kinds of stamping:
- Blind (blind) Stamping - squeezing print below the surface of the material used without the use of foil;
- stamping - compaction of material between the special cliché matrix and patricians, to give the image of convex;It can be blind or foiled;
- hot foil stamping - the process of thermal transfer on material pressed by the metallized film by powder clichés.Various kinds of foil - metallic, texture, pigment, holographic, and others.
Relief stamping is widely used for decoration covers diaries, as well as business card holders, wallets and other products from natural and artificial leather.
cliche for stamping are photopolymer and metal (zinc, magnesium, copper, brass, steel sometimes):
- photopolymer printing plates are used for short runs (up to 1,000 prints) - cards and souvenirs.It is the most economical option;
- zinc plate used in the manufacture of products up to 10,000 prints;
- magnesium clichés have their advantages: the ability to print on any material, rapid manufacturing, run length (up to 50,000 prints).Impression has a depth 0.7-2.5 mm (depending on the material);
- brass cliches are made on special machines engravers by machining.The advantages - the ability to make a cliche several levels of depth, giving tisnyaschim elements of greater height.They are used on soft materials with multi-level embossing.Run length depends on the thickness of the cliché (more than 50,000 prints).
photopolymer plate - a photopolymer deposited on a substrate of metal foil and protected from light exposure.
Metal plates are manufactured in two ways - etching (chemical) and milling (mechanical).Stamping and other types of hot stamping mainly performed cliché made chemically.
foil embossing has the following composition:
1) lavsanovaja basis;
2) termorazrushayuschiysya voskosmolyanoy layer which is destroyed when heated, releasing the lower layers of foil;
3) paint layer (layer of varnish or paint) with a binder;
4) a thin layer of aluminum that is present only in the holographic and metallized foils;
5) an adhesive layer adapted for adhering layers to the material.
warmed up to the desired temperature clichés frees colorful layers of Mylar framework and adheres to the material of the embossing.The temperature of heating is selected depending on the type of foil-type clichés, pressed material pattern print, the equipment used and many other factors.
