This can be purchased in semi-processed form for use in a household blender. Since machine-made paper contains chemical sizing which seals the paper, it is not easy to add colour to recycled pulp so select paper of the colour you want to make and use it to form the pulp. Adding coloured tissue paper will help to colour the pulp. Construction paper and some tempera paint will also have some effect. For best results when pigmenting cotton and abaca pulp, use pigments specially suited for papermaking.
Retention agent is helpful in preparing the fibres to retain the maximum amount of pigment.
Use a small amount each time you pigment pulp. When the pulp is has absorbed the pigment, add liquid sizing to seal the fibres. Beat this in well and your pulp is ready for making beautiful sheets of handmade paper. Experiment with various papers and keep a sample book with a list of ingredients in case you want to make it again. If you wish to make your own, stretch fine screening over a wooden frame and staple.