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公开(公告)号：US20200370239A1
公开(公告)日：2020-11-26
申请号：US16770471
申请日：2018-12-06
Applicant: Stony Creek Colors, Inc.
Inventor： Mark D. Keranen
Abstract: Described herein are compositions including O,O′-diacetyl leucoindigo. Also described herein are methods of pre-dyeing fibers with O,O′-diacetyl leucoindigo, followed by developing the pre-dyed fibers using hydrolysis or oxidation conditions to form indigo-dyed fibers. Also disclosed are indigo-dyed fibers, textiles, and fabrics made using O,O′-diacetyl leucoindigo, wherein cellulose, polyester, polyacrylonitrile, nylon, wool, and other compositional fiber types are suitably dyed with indigo dye using the described compositions and methods.
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公开(公告)号：US11208760B2
公开(公告)日：2021-12-28
申请号：US16770471
申请日：2018-12-06
Applicant: Stony Creek Colors, Inc.
Inventor： Mark D. Keranen
Abstract: Described herein are compositions including O,O′-diacetyl leucoindigo. Also described herein are methods of pre-dyeing fibers with O,O′-diacetyl leucoindigo, followed by developing the pre-dyed fibers using hydrolysis or oxidation conditions to form indigo-dyed fibers. Also disclosed are indigo-dyed fibers, textiles, and fabrics made using O,O′-diacetyl leucoindigo, wherein cellulose, polyester, polyacrylonitrile, nylon, wool, and other compositional fiber types are suitably dyed with indigo dye using the described compositions and methods.
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公开(公告)号：US20190010659A1
公开(公告)日：2019-01-10
申请号：US16023652
申请日：2018-06-29
Applicant: Stony Creek Colors, Inc.
Inventor： Mark D. Keranen
Abstract: Described herein are methods of dyeing fibers, and dyed fibers and textiles made using the methods. The methods involve contacting a fiber with a dye liquor at a dye liquor temperature of about 30° C. to 115° C. to form a dyed fiber, wherein the dye liquor components include at least N,N′-diacetyl indigo and a salt solution having ionic strength of about 0.03 M (moles/liter) to 1 M and pH of about 3 to 8 at 20° C. The contacting is generally carried out for a contact period of about 10 seconds to 30 minutes, for example by immersing the fiber in the heated dye liquor. By using the disclosed methods, N,N′-diacetyl indigo is substantially uniformly distributed on the dyed fiber to provide intense, vibrant colors affixed thereto. Dyed textiles display substantially uniform color.
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公开(公告)号：US10655273B2
公开(公告)日：2020-05-19
申请号：US16023652
申请日：2018-06-29
Applicant: Stony Creek Colors, Inc.
Inventor： Mark D. Keranen
Abstract: Described herein are methods of dyeing fibers, and dyed fibers and textiles made using the methods. The methods involve contacting a fiber with a dye liquor at a dye liquor temperature of about 30° C. to 115° C. to form a dyed fiber, wherein the dye liquor components include at least N,N′-diacetyl indigo and a salt solution having ionic strength of about 0.03 M (moles/liter) to 1 M and pH of about 3 to 8 at 20° C. The contacting is generally carried out for a contact period of about 10 seconds to 30 minutes, for example by immersing the fiber in the heated dye liquor. By using the disclosed methods, N,N′-diacetyl indigo is substantially uniformly distributed on the dyed fiber to provide intense, vibrant colors affixed thereto. Dyed textiles display substantially uniform color.
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