Dyed textiles and method of producing the same
OwnerShan James LEEinventor
Life of this patent
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Abstract
Slasher machines and rope dyeing machines are the main dyeing machine that is used to continuously dye yarn fabrics for denim using indigo dyes. In denim dyeing, indigo (blue color VAT) and some sulfur dyes are mixed together to achieve blue/black/brown color denim fabrics. This invention is the achievement of dyeing reactive/direct/pigment/acid/disperse and other non VAT/sulfur OR its combinations of non VAT/sulfur dyes OR combinations between VAT/sulfur dyes and VAT/sulfur dyes on continuous yarn dyeing machines and relevant apparatus. Its products are also very distinguishable, especially its combinations, hence is a part of the invention.
Claims8
A denim comprising:
- a) a plurality of warp threads;
- and
- b) a plurality of weft threads;
- wherein each said warp thread further comprises a first yarn and a dye coating disposed on said first yarn, comprising a plurality of different dyes;
- each said weft thread further consists of a second yarn without any dye thereon;
- and at least one of said plurality of dyes in said dye coating at least partially reveals and only partially covers another different dye immediately there-below;
- and the bottom most dye only partially covers said first yarn, such that said dyes are not disposed on at least a portion of said first yarn, thereby showing said wrap thread with a plurality of colors.
A method of preparing a dyed yarn comprising the steps of
- a) continuously passing said yarn through a dyeing machine selected from a group consisting of slasher dyeing machine and rope dyeing machine;
- b) dyeing said yarn with a dye coating comprising a plurality of different dyes forming a plurality of different dye layers in said dye coating in a single process/pass-through of the dyeing machine;
- wherein said plurality of dyes further comprises non-VAT dye, non-sulfur dye, sulfur dye and VAT dye such that said dye coating is a combination of said VAT dye, said sulfur dye, said non-VAT dye and said non-sulfur dye;
- wherein the top most dye layer of said dye coating is formed by a cover dye layer with a single color selected from a group consisting of said VAT dye, said sulfur dye, said non-VAT dye and said non-sulfur dye;
- and
- c) performing a post-treatment step configured to remove at least a portion of said dye coating such that at least one said plurality of dyes in said dye coating at least partially reveals and partially covers another different dye immediately therebelow;
- and the bottom most dye only partially covers said first yarn, such that said dyes are not disposed on at least a portion of said first yarn, thereby showing said wrap thread with a plurality of colors.
A fabric obtained by a process comprising the step of
- a) weaving a dyed yarn obtained by a process comprising the steps of:
- i. continuously passing a yarn through a dyeing machine selected from a group consisting of slasher dyeing machine and rope dyeing machine;
- and
- ii. dyeing said yarn with a dye coating comprising a plurality of different dyes forming a plurality of different dye layers in said dye coating in a single process/pass-through of the dyeing machine;
- wherein said plurality of dyes further comprises non-VAT dye, non-sulfur dye, sulfur dye and VAT dye such that said dye coating is a combination of said VAT dye, said sulfur dye, said non-VAT dye and said non-sulfur dye;
- wherein the top most dye layer of said dye coating is formed by a cover dye layer with a single color selected from a group consisting of said VAT dye, said sulfur dye, said non-VAT dye and said non-sulfur dye;
- b) after said weaving step, performing a post-treatment step configured to remove at least a portion of each said dye coating such that at least one said plurality of dyes in said dye coating at least partially reveals and partially covers another different dye immediately therebelow;
- and the bottom most dye only partially covers said first yarn, such that said dyes are not disposed on at least a portion of said first yarn, thereby showing said wrap thread with a plurality of colors.
Dependencies are inferred from the claim text.