Actuators (artificial muscles) comprising twisted polymer fibers generate tensile actuation when powered thermally. In some embodiments, the thermally-powered polymer fiber tensile actuator can be incorporated into an article, such as a textile or garment.

Actuators (artificial muscles) comprising twisted polymer fibers generate tensile actuation when powered thermally. In some embodiments, the thermally-powered polymer fiber tensile actuator can be incorporated into an article, such as a textile or garment.

An antibacterial electric charge generation yarn meets requirements (a) to (e) mentioned below simultaneously and suppresses proliferation of bacteria by electric charge generated upon deformation of the yarn: (a) a main component of the yarn is polylactic acid; (b) the yarn is twisted; (c) the yarn has a double torque of 50 T/50 cm or less; (d) the yarn has a single fiber fineness of 0.05 to 5 dtex; and (e) the number of filaments in the yarn is 10 to 400.

An antibacterial electric charge generation yarn meets requirements (a) to (e) mentioned below simultaneously and suppresses proliferation of bacteria by electric charge generated upon deformation of the yarn: (a) a main component of the yarn is polylactic acid; (b) the yarn is twisted; (c) the yarn has a double torque of 50 T/50 cm or less; (d) the yarn has a single fiber fineness of 0.05 to 5 dtex; and (e) the number of filaments in the yarn is 10 to 400.

Provided herein is an electrodeposition apparatus for producing long polymeric threads, yarns, or ropes. A method of preparing long polymeric threads, yarns or ropes also is provided.

Provided herein is an electrodeposition apparatus for producing long polymeric threads, yarns, or ropes. A method of preparing long polymeric threads, yarns or ropes also is provided.

A method for making a burnout fabric includes: (1) pre-treating a greige fabric; (2) processing the pre-treated greige fabric with a burnout paste containing sulfuric acid, synthetic gum tragacanth, and sodium alginate; and (3) post-treating the greige fabric after the burnout treatment to obtain a burnout fabric. The method according to the present invention is simple in process, low in cost, and easy to implement, and the burnout fabric obtained thereby has an attractive and clear pattern, featuring a three-dimensional effect and a high quality.

A strand, which is a resin strand used as an additive manufacturing raw material for a 3D printer and formed in a linear shape, the strand having a spiral groove portion formed on an outer peripheral surface along an axial direction.

A strand, which is a resin strand used as an additive manufacturing raw material for a 3D printer and formed in a linear shape, the strand having a spiral groove portion formed on an outer peripheral surface along an axial direction.

Actuators (artificial muscles) comprising twist-spun nanofiber twist-inserted polymer fibers generate tensile actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize coiled polymer fibers and can be either neat or comprising a guest. In some embodiments, the coiled polymer fibers actuator can be incorporated into an article, such as a textile, braid, clothing, smart packaging, or a mechanical system, and the coiled polymer fiber in the coiled polymer fiber actuator can have a stroke amplification factor of 5 or greater.