Stabilizing a fabric layer and simultaneously laminating a fabric to a bulky and cushioning backing layer using multiple internal adhesive layers placed within the fabric layer forms a composite textile. The melt index, weight and chemical compatibility of the adhesive layers versus the adjacent fabric sub-strata and the backing layer are adjusted to achieve the desired penetration of molten adhesive, mechanical bonding and chemical bonding. An optional external adhesive layer with a low melt index can be added between the fabric layer and the backing layer to facilitate attachment to a highly porous backing.

The invention discloses a continuous polyester fiber textile cloth that can be torn into pieces, processing equipment and a processing method. By ultrasonic hot-melting technology, the polyester fiber textile cloth is subjected to the high temperature generated by the high frequency generated by the action of a metal knife mold and an ultrasonic welding head, so that the thread of the loop layers and the base layer are melted in a line to form a thin line melting body that can be torn apart. The knife mold and the ultrasonic welding head are close to each other and resonate to generate heat. When they leave each other, the resonance disappears and the heat decreases, so as to realize the formation and temperature control of a linear high temperature zone.

The invention discloses a continuous polyester fiber textile cloth that can be torn into pieces, processing equipment and a processing method. By ultrasonic hot-melting technology, the polyester fiber textile cloth is subjected to the high temperature generated by the high frequency generated by the action of a metal knife mold and an ultrasonic welding head, so that the thread of the loop layers and the base layer are melted in a line to form a thin line melting body that can be torn apart. The knife mold and the ultrasonic welding head are close to each other and resonate to generate heat. When they leave each other, the resonance disappears and the heat decreases, so as to realize the formation and temperature control of a linear high temperature zone.

The invention provides an antimicrobial fiber which exhibits excellent antimicrobial properties even without the addition of antimicrobial agents and can remain antimicrobial even after repeated washing. The antimicrobial fiber comprises a fiber having on a surface thereof a polyacetal copolymer (X) containing oxyalkylene groups, the molar amount of oxyalkylene groups in the polyacetal copolymer (X) being 0.2 to 5 mol % relative to the total of the molar amount of oxymethylene groups and the molar amount of oxyalkylene groups.

The invention provides an antimicrobial fiber which exhibits excellent antimicrobial properties even without the addition of antimicrobial agents and can remain antimicrobial even after repeated washing. The antimicrobial fiber comprises a fiber having on a surface thereof a polyacetal copolymer (X) containing oxyalkylene groups, the molar amount of oxyalkylene groups in the polyacetal copolymer (X) being 0.2 to 5 mol % relative to the total of the molar amount of oxymethylene groups and the molar amount of oxyalkylene groups.

The present invention relates to a fiber structure including an elastic polyurethane yarn. The elastic polyurethane yarn contains: 0.5 to 10 mass % of a cationic high-molecular-weight compound A having a number-average molecular weight of 2000 or more; and an inorganic chlorine deterioration inhibitor B. The mass ratio of the cationic high-molecular-weight compound A to the inorganic chlorine deterioration inhibitor B ranges from 0.3 to 3, and a silicone oil is applied to the elastic polyurethane yarn. The fiber structure is treated with water repellent finishing. The fiber structure preferably includes an elastic polyurethane yarn whose ratio of fluorine (F) to carbon (C) on the elastic polyurethane yarn is 0.030 or more in an elemental mass concentration according to scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDX). Thereby, it is possible to provide a fiber structure having high water repellency and keeping a low water retention rate when immersed in water for an extended time.

In order to stably operate an actuator device in repeated operations with suppression of an increase in a resistance value of a heating wire, the actuator band according to the present disclosure comprises a plurality of actuator wires and a plurality of heating wires. Each of the plurality of the actuator wires is formed of a fiber which consists of a polymer. The fiber is twisted along the long axis thereof and folded so as to have a cylindrical coil shape. Each of the plurality of the actuator wires is contracted by heat and restored by release of the heat. A braided fabric is formed with the plurality of the actuator wires arranged in a planer shape and the plurality of the heating wires. A first end of each of the plurality of heating wires is connected to a first end of each of the plurality of the actuator wires. A second end of each of the plurality of the heating wires is connected to a second end of each of the plurality of the actuator wires.

An adaptive textile that includes a plurality of a first fiber having a first expansion coefficient and a plurality of a second fiber having a second expansion coefficient. There is a difference between the expansion coefficient of the first fiber and the expansion coefficient of the second fiber; at least one of the first or second fibers is a twisted coil actuator; and linear displacement of the twisted coil actuator causes the adaptive textile to bend.

An adaptive textile that includes a plurality of a first fiber having a first expansion coefficient and a plurality of a second fiber having a second expansion coefficient. There is a difference between the expansion coefficient of the first fiber and the expansion coefficient of the second fiber; at least one of the first or second fibers is a twisted coil actuator; and linear displacement of the twisted coil actuator causes the adaptive textile to bend.

Provided are a sea-island type composite multifilament which includes a thermoplastic elastomer resin as an island component, and an ultrafine multifilament prepared from such a sea-island type composite multifilament. The sea-island type composite multifilament includes an island component and a sea component. The island component includes a thermoplastic elastomer resin (A) having at least one of a Shore A hardness of 90 or less, a Shore D hardness of 60 or less, or a Rockwell hardness (R scale) of 70 or less. The sea component includes a water-soluble or easily alkali-soluble thermoplastic resin (B). The sea-island type composite multifilament has an average single island diameter of 8000 nm or less.