A carbon fiber recycling method utilizes a carbon fiber recycling device for recycling carbon fiber from a carbon fiber polymer composite by using a microwave. The carbon fiber recycling device has a cavity and at least one microwave supplying unit. The carbon fiber recycling method adjusts the microwave supplying unit to change the angle between the long axis direction of the cavity and the electric field direction, and to make the long axis direction of the carbon fiber parallel to the electric field direction. By radiating the microwave on the carbon fiber polymer composite, energy of the microwave is quickly absorbed by the carbon fiber to quickly increase a temperature of the carbon fiber, and the carbon fiber polymer composite is effectively and quickly decomposed to remove most polymer matrix of the carbon fiber polymer composite, so as to achieve the objective of recycling the carbon fiber indeed.

The invention concerns a method for producing a carbon fibre, that comprises a step of preparing a continuous fibre made of cellulose from cotton fabrics, by extracting, from these fabrics, cotton in the form of short, discontinuous fibres, and implementing a solvent spinning process; this step being followed by a step of carbonising said obtained continuous fibre made from cellulose, in order to form a carbon fibre. This carbon fibre can be used, in particular, for producing articles made from composite material made from carbon fibres and polymer organic resin.

The invention concerns a method for producing a carbon fibre, that comprises a step of preparing a continuous fibre made of cellulose from cotton fabrics, by extracting, from these fabrics, cotton in the form of short, discontinuous fibres, and implementing a solvent spinning process; this step being followed by a step of carbonising said obtained continuous fibre made from cellulose, in order to form a carbon fibre. This carbon fibre can be used, in particular, for producing articles made from composite material made from carbon fibres and polymer organic resin.

A method for recycling fiber from textile material by: forming textile material from fibers; distributing the textile material to a closed group of users wherein the users comprise a common attribute to define homogeneous textile material; collecting the homogeneous textile material wherein the homogeneous textile material comprises used fibers; recovering the used fibers from the homogeneous textile material to generate recovered fibers; and reforming the textile material using the recovered fibers. An article of clothing stitched with sacrificial sewing thread that is capable of being eliminated from the clothing is also disclosed.

A method for recycling fiber from textile material by: forming textile material from fibers; distributing the textile material to a closed group of users wherein the users comprise a common attribute to define homogeneous textile material; collecting the homogeneous textile material wherein the homogeneous textile material comprises used fibers; recovering the used fibers from the homogeneous textile material to generate recovered fibers; and reforming the textile material using the recovered fibers. An article of clothing stitched with sacrificial sewing thread that is capable of being eliminated from the clothing is also disclosed.

Described is a recyclable quilt including an upper layer, a lower layer, a padding interposed between the two layers and a stitching which passes through the two upper and lower layers for a mutual joining together. The stitching comprises at least one heat-sensitive sewing thread which has a temperature of change of state or softening which is lower than the temperatures of degradation of the above-mentioned layers and of the padding, in such a way that a change of state or softening of the heat-sensitive sewing thread causes the break-up of the stitching.

Described is a recyclable quilt including an upper layer, a lower layer, a padding interposed between the two layers and a stitching which passes through the two upper and lower layers for a mutual joining together. The stitching comprises at least one heat-sensitive sewing thread which has a temperature of change of state or softening which is lower than the temperatures of degradation of the above-mentioned layers and of the padding, in such a way that a change of state or softening of the heat-sensitive sewing thread causes the break-up of the stitching.

Yarn manufactured from recycled mixed clothing fibers and a process of making yarn manufactured from recycled mixed clothing fibers. Upcycled yarn has approximately 70%-95% of fiber from separated used clothes fibers, whereby separated used clothes fibers have cotton, polyester, nylon, silk, rayon, spandex, synthetic fibers, wool, hemp, carbon fibers, and/or linen. The upcycled yarn also has approximately 5%-30% other fibers that can be recycled fibers and/or virgin fibers, whereby the recycled fiber is recycled polyester from recycled plastic bottles and other sources, recycled cotton, recycled nylon from fishing nets and other sources, and the virgin fiber is nylon, spandex, virgin polyester, hemp, carbon fiber, and/or organic cotton.

Yarn manufactured from recycled mixed clothing fibers and a process of making yarn manufactured from recycled mixed clothing fibers. Upcycled yarn has approximately 70%-95% of fiber from separated used clothes fibers, whereby separated used clothes fibers have cotton, polyester, nylon, silk, rayon, spandex, synthetic fibers, wool, hemp, carbon fibers, and/or linen. The upcycled yarn also has approximately 5%-30% other fibers that can be recycled fibers and/or virgin fibers, whereby the recycled fiber is recycled polyester from recycled plastic bottles and other sources, recycled cotton, recycled nylon from fishing nets and other sources, and the virgin fiber is nylon, spandex, virgin polyester, hemp, carbon fiber, and/or organic cotton.

A reinforcing fiber mat manufacturing apparatus according to the present invention is a reinforcing fiber mat manufacturing apparatus that includes a hitting mechanism (40) that comes into contact with a reinforcing fiber bundle to split the reinforcing fiber bundle into a plurality of pieces, and, disperses the plurality of pieces. The hitting mechanism (40) includes a rotation shaft (41), a pair of rotation plates (42) attached to portions of the rotation shaft (41) apart from each other, and a plurality of hitting pieces (43) arranged to extend in parallel to the rotation shaft (41) between the pair of rotation plates (42). The reinforcing fiber mat manufacturing apparatus according to the present invention is a simple apparatus that reliably hits a reinforcing fiber bundle to split the fiber bundle into thin bundles, and disperses the thin bundles to a wide range without causing air turbulence to manufacture a reinforcing fiber mat having a uniform fiber basis weight.