Search results for 'red'

Prepared exclusively for Cornelissen following a Medieval English recipe, This handmade ink is produced in Cambridgeshire, from soot harvested from a working 19th-century forge, powered by charcoal and wood. Small batches of ink are blended to give the required consistency and strength. Forge Lamp Black is a thick, smooth non-waterproof ink that has good permanence. It can be watered down, and should always be shaken well before use. As with all handmade products derived from natural ingredients, there may be slight variations in the colour and consistency. Ingredients: Soot, gum Arabic, and clove oil.

Poppy Oil is a slightly later addition to the artist's cabinet than Linseed Oil and Walnut Oil. It is generally used as a binder for pale colours, where the warmth of Linseed Oil is not desired. It provides a matte finish and dries very slowly, so we would not advise using it in conjunction with slow-drying pigments or in underpaintings. A paint film produced by Poppy Oil is weaker and softer than that created by Linseed Oil. This is because it contains a smaller percentage of linolenic acid than Linseed Oil; this substance imparts both strength and yellowness to an oil.  

Although some of these properties can be perceived as drawbacks, paints made with Poppy Oil generally obtain a "short" or buttery texture without the addition of waxes or other additives, which can be an advantage for certain colours that produce poor consistencies in Linseed oil alone. Sometimes, the addition of a small quantity of Poppy Oil when grinding a tricky or "stringy" pigment in Cold Pressed Linseed Oil can introduce some of benefits of Poppy Oil, without transmitting its negative characteristics.

Paints made with Poppy Oil are particularly suited to "alla prima" working methods, where paint is applied spontaneously. When working in successive layers, Poppy Oil would only be appropriate for the final stages of a painting.

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Dragon's Blood is a natural, resin, mentioned by Pliny in his Natural History. It has a weak tinting strength, and its rich red-colour can be fugitive in direct sunlight. It is fully soluble in alcohol, and can be used to add a warm, transparent tone to spirit varnishes. Also available in lump form.

Casein is a protein derived from dried milk, which has been used in painting since ancient times. It can be combined with Ammonium Carbonate to form an emulsion, which acts as a durable, non-resoluble binder for pigments, producing a matte, fast-drying paint, similar in appearance to egg tempera. We use casein as a binder for our L. Cornelissen & Son Pigment Colour Charts, as it is a medium that clearly showcases the characteristics and behaviour of each pigment in its pure form. Casein paints can be applied in thin layers to watercolour paper, but would require a more rigid support, such as a gesso panel, to be applied thickly, as the comparative inflexibility of the paint layer means that it can be prone to cracking. Subsequent layers of paint should be more diluted to aid adhesion, and impasto effects are not recommended. It is possible to varnish casein paintings using an acrylic or damar varnish to obtain a glossy surface if desired, although this is not a necessary step. Casein can also be used as an ingredient in gesso, and is a suitable binder for fresco secco techniques.

Some pigments may require a wetting agent in order to fully disperse within the binder, in which case alcohol may be used.

This ink is made to the recipe that Jane Austen used to draft her novels. Austen's maid took this formula from Martha Lloyd's book, ‘The House Keeper’. She used good-quality English oak galls, but poorer quality beer than Isaac Newton, and added a little sugar. Her recipe is less stable and turns ‘antique brown’ over a long period of time, while Sir Isaac Newton's remains black. Initially a medium blue-grey, it darkens to a rich matte back, slightly warmer in tone than our regular Oak Gall Ink. It is made in small batches and blended to give the required consistency and strength, and is fully waterproof in 5-7 days. Permanent and lightfast, it has been steeped for several weeks and left to ‘mature’ for several more in the bottle. When used on animal skins such as vellum, the acids in the Oak Gall Ink react with collagen, effectively ‘etching’ itself into the surface, hence its permanence. 

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The Unison classic Portrait 8 set, specially selected by John Hersey for portrait painting. Unison Colour Soft pastels allow for ease of use with a highly blendable texture.

Cornelissen Press T73140, Bed size: 73 x 140 cm, Upper Roller Diameter: 157 mm, Lower Roller Diameter: 157mm, Etching press base: 78.5 x 91 cm. Weight: 148 kg. We offer press demonstrations for this model. Please call Cornelissen for more details. This press is made to order. Delivery to your address usually takes up to 4 weeks to UK & EU countries and 6 weeks to USA after the order is placed. Please be aware these goods are heavy and it is the customer’s responsibility to check measurements for delivery before orders are placed and to be able to receive the goods over two days.

Viridian Green is a synthetic inorganic pigment, similar in composition to Chromium Oxide. However, unlike Chromium Oxide, Viridian contains water molecules within its crystal structure, imparting a greater degree of transparency. Sometimes referred to as Verte Eméraude, Viridian was discovered in France in 1838, patented in 1859, and made available in the UK in 1862. It is stable in all media, and offers excellent lightfastness and good tinting strength. It requires a high oil content, and dries slowly to form a hard, fairly flexible paint film.

Toxicity B

NR9

The madder plant was once widely cultivated for the red dye extracted from its roots. Its earliest known use is in ancient Egypt, and there is evidence of its widespread adoption in Europe from the medieval period. Madder Lake, the pigment that is derived from the root, has now largely been replaced by synthetic alizarin pigments, but it is still used as an ingredient in some commercial paints. It provides a very transparent pigment, with a weak tinting strength, which can be used in all lime-free media, although it is very slow-drying in oil. It is fugitive to sunlight, so paintings containing Madder should be stored appropriately, but it remains one of the most lightfast plant-based pigments. 

Larger quantities are available by request.

PG19

Cobalt Green is a synthetic pigment that consists of compounds of cobalt and zinc oxides. It is sometimes referred to as Rinman's Green, after the Swedish chemist who discovered it in the late-18th century. It is a permanent, opaque colour, with a weak tinting strength. It dries quite quickly in oil, requiring a high oil content and  forming a hard, fairly fleixible paint film. Cobalt Green is available in light and dark shades; the colour is determined by the amount of zinc oxide present.

Toxicity: B

PERMITTED USES Over 18s only. Proof of age required. E-mail: info@cornelissen.com

IMPORTANT Please refer to the MSDS (Material Safety Data Sheet) below. Dispose of product as hazardous waste.

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