A structure includes an oriented piezoelectric polymer arranged in a circular tubular or circular columnar shape, wherein the orientation angle of the piezoelectric polymer with respect to the central axis of the structure is 15° to 75°, the piezoelectric polymer includes a crystalline polymer having an absolute value of 0.1 to 1000 pC/N for the piezoelectric constant d14 when the orientation axis is the third axis, and the piezoelectric polymer includes a P-body containing a crystalline polymer with a positive piezoelectric constant d14 value and an N-body containing a crystalline polymer with a negative value, wherein for the portion of the central axis of the structure having a length of 1 cm, the value of T1/T2 is 0 to 0.8, T1 being the smaller and T2 being the larger of (ZP+SN) and (SP+ZN), where ZP, SP, ZN, and SN are particularly defined masses.

Disclosed herein, inter alia, is a flooring woven fabric. The flooring woven fabric includes a fabric layer including bulked continuous filaments (BCFs) having crimp and a polymer resin composition. The fabric layer includes a woven yarn of BCFs and the polymer resin composition is applied on the top portion of the fabric layer such that the polymer resin to form a coating layer. The polymer resin composition of the coating layer may penetrate between the BCFs and yarns made of BCFs. As such, the flooring woven fabric may have improved the wear resistance to strengthen the surface properties and positioning the coating layer to block the penetration of liquid contaminants at the same time, thereby improving the decontamination performance.

Disclosed is a polyethylene yarn which enables the manufacture of a skin cooling fabric having dimensional stability and having improved weavability which enables the manufacture of a skin cooling fabric capable of providing a user with a soft tactile sensation as well as a cooling sensation, a method for manufacturing the same, and a skin cooling fabric including the same. The polyethylene yarn has a shrinkage stress at 70° C. and 100° C. of 0.005 to 0.075 g/d, respectively. Also, the polyethylene yarn has a “dry thermal shrinkage rate at 70° C.” of 0.1 to 0.5%, a “dry thermal shrinkage rate at 100° C.” of 0.5 to 1.5%, and a “wet thermal shrinkage rate at 100° C.” of 0.1 to 1%.

Disclosed is a polyethylene yarn which enables the manufacture of a skin cooling fabric having dimensional stability and having improved weavability which enables the manufacture of a skin cooling fabric capable of providing a user with a soft tactile sensation as well as a cooling sensation, a method for manufacturing the same, and a skin cooling fabric including the same. The polyethylene yarn has a shrinkage stress at 70° C. and 100° C. of 0.005 to 0.075 g/d, respectively. Also, the polyethylene yarn has a “dry thermal shrinkage rate at 70° C.” of 0.1 to 0.5%, a “dry thermal shrinkage rate at 100° C.” of 0.5 to 1.5%, and a “wet thermal shrinkage rate at 100° C.” of 0.1 to 1%.

A woven terrycloth stretch fabric includes: weft yarns arranged along a first direction; first and second ground warp yarns arranged along a second direction, the first and second ground warp yarns being looped around the weft yarns with a first degree of tightness. Face loop warp yarns and back loop warp yarns are looped around the weft yarns with a second lesser degree of tightness, the ground warp yarns together with the weft yarns, together forming a base ground of the terrycloth stretch fabric. The plurality of face loop warp yarns and the plurality of back loop warp yarns each loop around the weft yarns so as to form front and back piles of the terrycloth stretch fabric. At least one of the ground warp yarns has a composite yarn comprising a cotton yarn having a polyolefin-based elastic yarn core.

A woven terrycloth stretch fabric includes: weft yarns arranged along a first direction; first and second ground warp yarns arranged along a second direction, the first and second ground warp yarns being looped around the weft yarns with a first degree of tightness. Face loop warp yarns and back loop warp yarns are looped around the weft yarns with a second lesser degree of tightness, the ground warp yarns together with the weft yarns, together forming a base ground of the terrycloth stretch fabric. The plurality of face loop warp yarns and the plurality of back loop warp yarns each loop around the weft yarns so as to form front and back piles of the terrycloth stretch fabric. At least one of the ground warp yarns has a composite yarn comprising a cotton yarn having a polyolefin-based elastic yarn core.

A woven article for a carbon fiber reinforced plastic according to the present invention is a woven article of a spun yarn containing: about 10 wt % to about 60 wt % of a carbon fiber staple in which the content of carbon components is equal to or greater than about 97 wt %; and about 40 wt % to about 90 wt % of a thermoplastic resin fiber, wherein the carbon fiber staple is obtained by carbonizing carbon fiber reinforced plastic scrap at a temperature of about 900 to about 1400° C. The woven article for a carbon fiber reinforced plastic includes a carbon fiber staple manufactured from scrap generated during manufacture of the carbon fiber reinforced plastic, and allows economic recycling of the carbon fiber reinforced plastic scrap without a reduction in mechanical properties. When molded, productivity is high due to a short cycle time, there is almost no orientation, and an excellent flexural modulus is exhibited.

A woven article for a carbon fiber reinforced plastic according to the present invention is a woven article of a spun yarn containing: about 10 wt % to about 60 wt % of a carbon fiber staple in which the content of carbon components is equal to or greater than about 97 wt %; and about 40 wt % to about 90 wt % of a thermoplastic resin fiber, wherein the carbon fiber staple is obtained by carbonizing carbon fiber reinforced plastic scrap at a temperature of about 900 to about 1400° C. The woven article for a carbon fiber reinforced plastic includes a carbon fiber staple manufactured from scrap generated during manufacture of the carbon fiber reinforced plastic, and allows economic recycling of the carbon fiber reinforced plastic scrap without a reduction in mechanical properties. When molded, productivity is high due to a short cycle time, there is almost no orientation, and an excellent flexural modulus is exhibited.

In a woven fabric woven from first constituent yarns as one of warps and wefts and second constituent yarns as the other, a part of the first constituent yarns are side emission type optical fibers; at least a part of the second constituent yarns are light shielding yarns; the woven fabric has a light shielding structure which shields light emission on a design surface side of the side emission type optical fiber; the light shielding structure includes a first group of light shielding yarns and a second group of light shielding yarns each formed of the 2 to 4 continuous light shielding yarns intersecting the side emission type optical fiber on the design surface side; the one light shielding yarn arranged between the first group of light shielding yarns and the second group of light shielding yarns and intersecting the side emission type optical fiber on a non-design surface side.

A flexible second gas barrier for a liquefied gas storage tank which includes a stiffener fabric weaved with two or more kinds of fiber yarn selected from a group consisting of a glass fiber, a carbon fiber, an aramid fiber, and a synthetic fiber. The stiffener fabric is weaved so that a hybrid fiber yarn is made by 2-ply yarning two or more kinds of a single yarn or a twisted yarn of fiber yarn selected from a group consisting of a glass fiber, a carbon fiber, an aramid fiber, or a synthetic fiber, is included in the weft and/or warf so that repeated fatigue resistance, even under cryogenic conditions, is achieved, which ultimately has the effect of solving the problems associated with repeated load increase imposed on the second gas barrier as the thickness of LNGC Foam increases.