An animal leather fiber bundle, yarn, core-spun yarn and products with nanoscale branches is disclosed. The animal leather fiber bundle with nanoscale branches has an animal leather fiber body, which is a spinnable animal leather fiber body. The animal leather fiber body has nanoscale branches, the yarn is formed of animal leather fiber bundles with nanoscale branches, the core-spun yarn has a core yarn and a skin layer, the skin layer has animal leather fiber bundles with nanoscale branches, and the product is made of any one of the above. The disclosed structure has independent and separated nanoscale branches.

An animal leather fiber bundle, yarn, core-spun yarn and products with nanoscale branches is disclosed. The animal leather fiber bundle with nanoscale branches has an animal leather fiber body, which is a spinnable animal leather fiber body. The animal leather fiber body has nanoscale branches, the yarn is formed of animal leather fiber bundles with nanoscale branches, the core-spun yarn has a core yarn and a skin layer, the skin layer has animal leather fiber bundles with nanoscale branches, and the product is made of any one of the above. The disclosed structure has independent and separated nanoscale branches.

Leather fibers for yarn are provided. The leather fibers used to manufacture the yarn are obtained from cowhide. The leather fibers obtained through leather selection and separation techniques may improve the physical properties of the yarn.

Leather fibers for yarn are provided. The leather fibers used to manufacture the yarn are obtained from cowhide. The leather fibers obtained through leather selection and separation techniques may improve the physical properties of the yarn.

A method of manufacturing a collagen yarn includes providing collagen fiber. The collagen fiber is spun into a yarn and tanned subsequent to the spinning of the yarn.

A method of manufacturing a collagen yarn includes providing collagen fiber. The collagen fiber is spun into a yarn and tanned subsequent to the spinning of the yarn.

This method for preparing a thread has a step for obtaining a thread-shaped vitrigel by wetting a first sheet-shaped hydrogel dried body or a sheet-shaped vitrigel dried body in a first aqueous solution and twisting the same into a thread shape.

This method for preparing a thread has a step for obtaining a thread-shaped vitrigel by wetting a first sheet-shaped hydrogel dried body or a sheet-shaped vitrigel dried body in a first aqueous solution and twisting the same into a thread shape.

Disclosed are a method for preparing spun leather yarn using leather fiber, and spun leather yarn prepared according to the preparation method. The spun leather yarn prepared according to the preparation method enables the manufacture of fabrics, knitted goods, and lace goods, which have the character of leather, and thus can be effectively used for various fashion applications. In addition, the spun leather yarn can replace existing leather materials, which have been used in bags, athletic shoes, and the like, and thus is not affected by material supply in accordance with seasonal changes, and accordingly, the economic effect thereof is excellent. Moreover, the spun leather yarn has warmth retention and general flame retardancy, which are the properties of natural leather, and thus is of very high quality.

A method of dyeing collagen fiber includes providing collagen fiber and dyeing the collagen fiber.