Alum For Marbling

It acts as a color binder or mordant fixing the colors to the paper permanently if alum is not applied to the paper before marbling most of the color will rinse off.

Alum for marbling.

Mix 3 tablespoons alum per quart of hot tap water in a bin. Wear disposable gloves while treating and marbling the fabric. Marbling on tragacanth does not requore alum but the paper must be dampened slighly to accept the colour. To make enough alum for several dozen sheets of paper stir 1 tbsp 15 ml alum into 1 cups 360 ml warm water until completely dissolved at least two minutes.

Alum is corrosive and will destroy cloth if not washed out soon. Our aim in mordanting is to evenly apply an alum solution to our fabric before marbling just enough for a permanent print. It forms cubic or octahedral crystals that are. Without a mordant the pigments will slide off the paper.

Alum aluminum sulphate every sheet of paper to be marbled must be coated with alum. Mix 3 tablespoons of alum per quart of hot water in one of the buckets. Soak leather or prewashed fabric in mixture for 20 minutes or brush onto paper. Alum is a mordant meaning it causes color to set on the paper.

The alum helps the pigments used in marbling to adhere to the paper. It bonds readily and permanently to other molecules creating a link between fiber and marbling pigment. Stir thoroughly to dissolve the crystals. The new jacquard marbling colors are the very best but any of the following can be used.

Alum is the third most important substance in marbling after the gall and the size. Bandanas cotton hankies and even t shirts can be marbled not to mention scarves. Remember that alum is the compound most commonly used to mordant both fabric and paper. A white crystalline compound used in solution for coating paper prior to marbling for setting dyes on fabrics and other applications.

It is sold in a dry crystal form and is soluble in water. Plan to marble fabric as quickly as possible after treatment. Buy pure aluminum sulfate from an art supply store or online. Make enough solution to cover your fabrics.

Methocel or carageenan best waterbased paints. Reserve alum mixture in bin to use over several days. Jmc2 dnf seta jabi. Also sometimes referred to as potassium aluminum sulfate.

Alum or potassium aluminum sulfate is a chemical often used as a food preservative. Without it the marbling will be faint and blurry.