Alum For Marbling

Fabric scarves ties or other items to marble we used sh silk hankies and mccb mercerized combed cotton broadcloth.

Alum for marbling. Our aim in mordanting is to evenly apply an alum solution to our fabric before marbling just enough for a permanent print. Soak leather or prewashed fabric in mixture for 20 minutes or brush onto paper. Mix 3 tablespoons alum per quart of hot tap water in a bin. Methocel or carageenan best waterbased paints.

Wear disposable gloves while treating and marbling the fabric. Also sometimes referred to as potassium aluminum sulfate. Without a mordant the pigments will slide off the paper. Marbling on tragacanth does not requore alum but the paper must be dampened slighly to accept the colour.

Make enough solution to cover your fabrics. Alum is the third most important substance in marbling after the gall and the size. Jmc2 dnf seta jabi. Alum is corrosive and will destroy cloth if not washed out soon.

It forms cubic or octahedral crystals that are. 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. A white crystalline compound used in solution for coating paper prior to marbling for setting dyes on fabrics and other applications. Buy pure aluminum sulfate from an art supply store or online.

Bandanas cotton hankies and even t shirts can be marbled not to mention scarves. 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. Stir thoroughly to dissolve the crystals. 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.

Alum is a mordant meaning it causes color to set on the paper. Alum aluminum sulphate every sheet of paper to be marbled must be coated with alum. Without it the marbling will be faint and blurry. Plan to marble fabric as quickly as possible after treatment.

It is sold in a dry crystal form and is soluble in water. The new jacquard marbling colors are the very best but any of the following can be used. The alum helps the pigments used in marbling to adhere to the paper. Reserve alum mixture in bin to use over several days.

Mix 3 tablespoons of alum per quart of hot water in one of the buckets. It bonds readily and permanently to other molecules creating a link between fiber and marbling pigment.