Stamping

Stamping refers to several techniques used to create raised or recessed patterns on a surface by using a die, mold, or punch. Depending on the context, it can be a handcrafted or industrial method applied to various materials such as paper, cardboard, leather, metals, or even metal sheets. This versatility makes stamping a multipurpose technique used to add distinctive texture, enhanced visual appeal, or functional plastic deformation.

Artistic and Craft Stamping

In its most traditional sense, stamping is a printing technique that involves transferring a raised or recessed pattern onto a flexible substrate, such as paper, cardboard, or leather. It relies on the use of a die (often made of metal) engraved with the desired design, which is pressed against the material to create a three-dimensional effect.

Artistic Stamping Process

→ Matrix design: creation of a punch or engraved plate, in relief or recessed, depending on the desired effect.

→ Preparation of the substrate: paper, leather, or cardboard is placed under the press.

→ Application of pressure: the matrix is pressed with significant force, deforming the substrate to create the raised or recessed pattern.

Main Techniques

→ Hot stamping: the matrix is heated and used to transfer a metallic or colored foil onto the substrate, producing a shiny and elegant effect often combined with gilding.

→ Cold stamping: without heat, pressure alone is sufficient to create the raised or recessed imprint.

Applications

• Stamping is widely used for:
• Luxury stationery (business cards, invitations, letterheads)
• High-end packaging (cosmetics, perfumes, spirits)
• Special editions (book covers, limited editions)
• Craftsmanship and jewelry (leather decoration, metal patterns)

History and Context

Stamping has its roots in ancient techniques, notably in China, where inscriptions carved in stone were reproduced on paper by stamping as early as the 7th century. This millennia-old method allowed for the faithful preservation and transmission of texts and calligraphy, using paper as a flexible medium pressed onto engraved steles. While this historical technique differs from modern artistic stamping, it illustrates the long tradition and cultural richness of the practice.

ndustrial Stamping

Not to be confused with artistic stamping, industrial stamping is a mechanical process that involves plastically deforming metal sheets or parts using a mold and a punch. This technique, widely used in the automotive, aerospace, and railway industries, allows for the creation of raised shapes, markings, or identification on metal parts.

• The material is displaced beyond its elastic limit without breaking, permanently transferring the pattern or shape onto the piece.
• This process also enhances the mechanical properties of the worked area through work hardening.

Advantages of Artistic Stamping

• Unique visual and tactile appeal: adds depth and texture, enhancing the object.
• Differentiation and prestige: imparts a high-end touch, highly valued in luxury markets.
• Versatility: adaptable to many materials and uses.
• Perceived quality: enhances the perceived value of finished products.

Conclusion

Stamping is a rich and versatile technique, spanning from the millennia-old tradition of relief printing on paper to the high-tech industrial plastic deformation process. In its artistic use, it remains a valuable tool to visually and tactilely enhance a wide variety of materials, giving products an elegant and distinctive finish.