D - Textiles – Paper – 06 – P
Patent
D - Textiles, Paper
06
P
D06P 5/15 (2006.01) D06L 3/08 (2006.01) D06P 1/00 (2006.01) D06P 1/673 (2006.01)
Patent
CA 2284217
The "Dye Discharge Colourization Process", henceforth called by it's abbreviated name "3D-Colour" is a process used to beautify previously and traditionally dyed cloth or cloth garments. Common dying processes intend to produce an evenly dyed fabric or a fabric containing various shades of one particular colour. Tie dying is a process used to add various colours, in semi random patterns, to garments. 3D-Colour borrows from the process of tie dying in that pattern effects can be manipulated by bundling or tying the cloth or garment. 3D-Colour utilizes the fact that common dyed cloth or cloth garments, particularly of the darker shades, are dyed in various stages. These stages are meant to build up layers of various colours until the final desired colour is achieved. Secondly, again particularly with the darker shades, the colours themselves are made up of a mixture of various colours. When these dyed cloths are placed in bleach the colour is discharged with the first stages being the dulling of the colours. The more the discharge is permitted the more colour is removed until fully discharged the cloth becomes an off white shade. Several agents can be used to neutralize the bleach once the desired level of discharge is achieved. The bleach must be neutralized otherwise it will continue to damage the fibers of the cloth. The key to 3D- Colour is by using a neutralizer, particularly sodium meta-bisulfite, in a particular method, one can cause a chemical reaction which tends to strip away and separate the layers of colour producing wonderful patterns and mixtures of the underlying colours. Each initial cloth colour such as navy blue or black produces a different mixture of colours and these mixtures vary depending on the original manufacture and their dying formulas. Most of the traditionally dyed colours react differently and therefore require a different formulation of bleach vs. neutralizer.
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