Method for marking fabric with erasable color marking composition
OwnerIchiro Okadainventor
Life of this patent
Estimating the term…
Abstract
A method is provided for color marking wherein a color marking composition is ejected through a hollow needle into each of piled fabric pieces, said composition containing a water dispersion of an acid- and/or base-soluble inorganic pigment, a penetrant, a volatization retardant and an anti-settling agent. The mark obtained by this process is erasable with an appropriate acid or base.
Claims10
A method of putting a color mark on each of piled fabric pieces, which mark is erasable upon contact with an appropriate acid or base, comprising passing a hollow needle through piled fabric pieces, and, during piercing of the needle into or out of the fabric pieces, ejecting from the needle a marking composition, said composition comprising a water dispersion of a heat-resistant inorganic pigment in an amount sufficient to provide the color mark on each fabric piece, said pigment being soluble in acid and/or base and substantially insoluble in water, an anti-settling agent in an amount sufficient to maintain the pigment dispersed in water;
- a water-miscrible water volatilization retardant in an amount sufficient to make the evaporation rate of the dispersion lower than that of water;
- and a water-miscible penetrant having the property of lowering the surface tension of water in said amount sufficient to improve the penetrability of the composition to the fabric piece;
- and then erasing the mark with an appropriate acid or base.
Dependencies are inferred from the claim text.