Polymetaal

The Roll-Up Black is a non-drying black lithographic ink, with very low viscosity. It is used to provide a temporary protection to lithographic stones in storage between editions. Cranfield’s Roll-Up Black can be used without modification from the tin. It has a greasy, highly adhesive nature and is formulated to be resistant to erosion by creating a waxy, greasy barrier that helps the protect the image on the stone. As it is a non-drying ink, remaining wet and pliable, it can easily be removed with solvent when needed. Roll-Up Black is crucial for maintaining the integrity of the image throughout the lithographic process, ensuring that the final print accurately reflects the artist’s original drawing.

The Workshop Black is a half-way house between the Loose Roll-Up black and Stiff Crayon Black inks. The proportions of the blend have been formulated after extensive consultation with our partner universities, institutions, and individual lithographers to provide a highly pigmented ink but with ease of use. The controlled properties of viscosity, tack (stickiness), drying time, and the ability to roll up smoothly on the printing surface make this the go-to compromise in many studios.

This ink has been formulated to meet the demand for a very stiff Lithography black to match the historic formulations previously available but latterly increasingly difficult to source. Such is the extremely high viscosity and tack of this very popular formulation, a tin can be picked up from the bench, simply be inserting an ink knife into the ink! Stiff Crayon Black provides a velvet black colour and along with the other two inks in the series, is formulation for traditional lithography, using high-quality pigments and modern grinding techniques.

Carbon Black BKCH1591
PBk7 (C.I 77266) Furnace carbon black
Semi transparent
Blue Wool Scale 8

Carbon Black BKC1591
PBk7 (C.I 77266) Furnace carbon black
Semi opaque
Blue Wool Scale 8

Prussian Blue BLCH21235
PB27 (C.I 77510) Iron (iii) hexacyanoferrate (ii)

Transparant

Ultramarine Blue BLCH22227
PB29 (C.I 77007) Sodium alumino sulpho silicate

Transparent

Phthahlo Blue Red Shade BLCH22557
PB15:1 (C.I 74160) Alpha copper phthalocyanine

Transparent

Phthahlo Blue Green Shade BLCH22558
PB15:3 (C.I 74160) Beta copper phthalocyanine

Transparent

Raw Umber BRCH32274
PY3 (C.I 11710) Monoazo Yellow | PR112 (C.I 12370) Monoazo Red (napthol) | PBk7 (C.I 77266) Furnace carbon black

Semi Opaque

3148,

Burnt Umber BRCH32275
PY3 (C.I 11710) Monoazo Yellow | PR112 (C.I 12370) Monoazo Red (napthol) | PW6 (C.I 77891) Titanium dioxide | PBk7 (C.I 77266) Furnace carbon black

Semi Transparent

Van Dyke Brown BRCH32276
PY3 (C.I 11710) Monoazo Yellow | PW6 (C.I 77891) Titanium dioxide | PR112 (C.I 12370) Monoazo Red (napthol) | PBk7 (C.I 77266) Furnace carbon black

Semi Transparent

Burnt Sienna BRCH32277
PY3 (C.I 11710) Monoazo Yellow | PR112 (C.I 12370) Monoazo Red (napthol) | PR122 (C.I 73915) Polycyclic quinacridone | PBk7 (C.I 77266) Furnace carbon black

Semi Transparent

Sepia BRCH32280
PBr7 (C.I 77491 C.I 77492) Iron & Manganese oxide | PBk7 (C.I 77266) Furnace carbon black

Semi Transparent

Phthalo Green GRCH4810
PG7 (C.I 74260) Polychlorinated copper phthalocyanine | PY13 (C.I 21100) Dis Azo Yellow

Transparent