Tuesday, January 10, 2012

Embossing: Part I

Often used in combination with foil stamping, embossing is a process that applies pressure to the backside of a material to alter the surface, giving it a three dimensional or raised effect. The procedure involves the use of two dies, one fitting into the other so that the raised die forces the stock into the recessed die to create the embossed impression. A die maker engraves the desired image, or copy, into several metal plates, which are the embossing dies for use on an embossing press. Generally, embossing is the process most often employed to attract attention or convey a high quality textural contrast in relation to the surrounding area of the stock. A thorough understanding of the process will allow for a more successful result. An embossed image is shown below.

Debossing is the term used to describe the opposite process or effect, which involves applying pressure to the front side of a stock forcing the material away or down from the paper surface. Although it is not as commonly used as embossing, debossing is occasionally used to provide a different effect or appearance that fits a particular theme. A debossed image is shown below.

Types of Embossing

Blind Emboss - Blind embossing does not include the use of ink or foil to highlight the embossed area. The change in the dimensional appearance of the material is the only noticeable difference resulting from the embossing. The blind embossing process provides a clean and distinctive or subtle image on paper stock. It is best used to create a subtle impression or low level of attention to the piece, yet provide some slight form of differentiation for the finished work. 

Registered Emboss - Registered embossing is a process that places the embossed image in alignment with another element created with ink, foil, punching, or with a second embossed image. In the illustration below, the blind emboss is aligned within the larger printed circle to produce a registered emboss.

Combination Emboss - Combination embossing is the process of embossing and foil stamping the same image. It involves imprinting and aligning foil over an embossed image to create a foil emboss. A sculptured die, generally made of brass is used for this procedure. The process requires close registration that must be controlled to keep the image and foil matched precisely. A combination die is used to foil stamp and emboss in one operation. The combination die has a cutting edge around the outside of the die to cleanly break the excess foil away from the embossed area.

Pastelling - Pastelling is also referred to as tint leaf embossing. It involves the process of using a combination die to provide a subtle antique appearance to a substrate that is foil stamped and embossed. Pearl finishes, clear gloss, or similar pastel foil finishes can be selected giving a soft two-color antique look (without scorching) to the embossed image. Lighter colored stocks work best to provide this soft contrasting effect.

Glazing - Glazing refers to a finished embossed area that has a shiny or polished appearance. Most often this process involves heat that is applied with pressure in order to create a shined and burned impression into the stock. Generally, darker colored heavier weight stocks work best to create this polished effect and to eliminate or soften any burned appearance that may result from the heat. When used with foil, the process creates a slightly brighter appearance to the foil.

Scorching - Scorching is similar to glazing except that it is not used to polish the stock. Instead, scorching does what it implies: as the temperature of the die heating plate is increased beyond the normal temperature range, a scorched effect is created in the embossed image resulting in an antique or shaded appearance to the stock. A lighter colored stock is best for this procedure to provide a unique two-toned appearance. Caution should be used in requesting this effect, since it is easy to burn the stock if too much heat is used. If scorching occurs too close to the printed copy, it can interfere with the clarity of the printed copy, unless the objective is to accomplish that effect.

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MI Printing
Phone: 623.582.1302
Email:
sales@printinginaz.com