Method of dyeing collagen staple fiber
AssigneeECCO Sko A/S
InventorsThomas GOGSIG, Stojanka PETRUSIC
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Abstract
A method of dyeing collagen fiber includes providing collagen fiber and dyeing the collagen fiber.
Claims31
A method of dyeing collagen fiber, the method comprising steps of:
- providing collagen fiber;
- and
- dyeing the collagen fiber.
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A method of manufacturing a collagen yarn, the method comprising:
- spinning a collagen-based staple fiber into a yarn by spinning of a plurality of collagen staple fibers into a yarn,
- wherein the yarn comprises a spun bundle of collagen staple fibers, and
- wherein the manufactured yarn is subsequently subject to dyeing.
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A leather yarn formed via a method the method comprising:
- spinning a collagen-based staple fiber into a yarn by spinning of a plurality of collagen staple fibers into a yarn,
- wherein the yarn comprises a spun bundle of collagen staple fibers, and
- wherein the manufactured yarn is subsequently subject to dyeing,
- wherein a color of the yarn is provided in a neutral base color.
The leather yarn according to 61, wherein the yarn having the neutral base color is rolled up on a plurality of reels prior to the dyeing.
The leather yarn according to 62, wherein the yarn in a neutral base color is rolled up on a plurality of reels prior to dyeing and subsequently a subset from the plurality of spools is selected for dyeing the yarn in one color and another subset from the plurality of spools is selected for dyeing the yarn in another color.
The leather yarn according to 63, wherein the collagen staple fibers have a tenacity of more than 3 g/denier.
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A leather shoe comprising;
- a sole;
- and
- an upper part,
- wherein the upper part is at least partly comprised of leather fabric, and
- wherein the leather fabric is produced based on leather yarn,
- wherein the leather fabric of the shoe comprises:
- tanning agents in at least 1% by weight of the leather fabric, and
- dye in at least 1% by weight of the leather fabric.
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Dependencies are inferred from the claim text.