Alum For Marbling

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 for marbling. Buy pure aluminum sulfate from an art supply store or online. 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. Alum is a mordant meaning it causes color to set on the paper.

Soak leather or prewashed fabric in mixture for 20 minutes or brush onto paper. Jmc2 dnf seta jabi. Mix 3 tablespoons of alum per quart of hot water in one of the buckets. It forms cubic or octahedral crystals that are.

The alum helps the pigments used in marbling to adhere to the paper. Methocel or carageenan best waterbased paints. It is sold in a dry crystal form and is soluble in water. Make enough solution to cover your fabrics.

Alum aluminum sulphate every sheet of paper to be marbled must be coated with alum. Fabric scarves ties or other items to marble we used sh silk hankies and mccb mercerized combed cotton broadcloth. Remember that alum is the compound most commonly used to mordant both fabric and paper. 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.

Without it the marbling will be faint and blurry. A white crystalline compound used in solution for coating paper prior to marbling for setting dyes on fabrics and other applications. Also sometimes referred to as potassium aluminum sulfate. Alum is the third most important substance in marbling after the gall and the size.

The new jacquard marbling colors are the very best but any of the following can be used. Al 2 so 4 3 k 2 so 4 24h 2 o this product looses 18 h 2 o at 92 5 o c and becomes anhydrous at 200 o c. It makes the colours adhere to the paper. Alum or potassium aluminum sulfate is a chemical often used as a food preservative.

Alum is corrosive and will destroy cloth if not washed out soon. Stir thoroughly to dissolve the crystals. Bandanas cotton hankies and even t shirts can be marbled not to mention scarves. Mix 3 tablespoons alum per quart of hot tap water in a bin.

Plan to marble fabric as quickly as possible after treatment. Our aim in mordanting is to evenly apply an alum solution to our fabric before marbling just enough for a permanent print.