Provided is a glass cloth that can reduce a delay time difference of a printed wiring board and for which high productivity can be achieved. In the glass cloth, a glass filament diameter of the warp yarn and the weft yarn is from 0.5 to 4.5 m, the filament number of each is from 150 to 3000, the weaving density of each is from 1.0 to 50.0 filaments/25 mm, the average yarn width of each is from 550 to 10000 m, the fiber-opening efficiency coefficient of each is from 0.600 to 1.500, the ratio of the filament number to the filament diameter is from 68.6 to 555.5, the geometric mean of the opening efficiency coefficients of the warp yarn and the weft yarn is from 0.770 to 1.200, and the thickness of the glass cloth is less than 10.0 m.

A method for preparing a liquid crystal polymer film, comprising: (1) spinning a liquid crystal polymer into fibers, and maintaining the fibers for 0.1 hour to 36 hours at a temperature of 200 C. to 400 C. under a vacuum degree less than 500 Pa for later use; (2) weaving the fibers prepared in step (1) into cloth for later use; and (3) pressing the cloth prepared in step (2) into a film at a temperature of 200 C. to 400 C., and then stretching the film to obtain the liquid crystal polymer film. The liquid crystal polymer film prepared by the preparation method is good in mechanical property, and has a tensile strength that can exceed 170 MPa. The prepared liquid crystal polymer film is applied to a FPC, which makes the FPC have a dielectric constant less than 3, and a small dielectric loss tangent angle.

Provided is a glass cloth that can reduce a delay time difference of a printed wiring board and for which high productivity can be achieved. In the glass cloth, a glass filament diameter of the warp yarn and the weft yarn is from 0.5 to 4.5 m, the filament number of each is from 150 to 3000, the weaving density of each is from 1.0 to 50.0 filaments/25 mm, the average yarn width of each is from 550 to 10000 m, the fiber-opening efficiency coefficient of each is from 0.600 to 1.500, the ratio of the filament number to the filament diameter is from 68.6 to 555.5, the geometric mean of the opening efficiency coefficients of the warp yarn and the weft yarn is from 0.770 to 1.200, and the thickness of the glass cloth is less than 10.0 m.

A system and method of manufacturing MXene-based coils on textile substrates. The system and method enable wireless charging of embedded devices in textiles, including energy storage, sensors, and wireless charging coils, removing the need for rigid physical connections. The systems manage print content by deposition of MXene ink compositions with a custom-generated coil design comprising specific geometric parameters that are configured to target required performance targets. Such an approach allows for the augmentation of e-textiles with sufficient energy and/or data transmission capacities so as to support the use of a wide range of smart devices and applications.

Provided is a glass fabric formed by weaving warp and weft glass yarns comprising a plurality of glass filaments, wherein the surface of the glass fabric is subjected to surface treatment with a surface treatment agent, and the difference between the dielectric loss tangent and the bulk dielectric loss tangent of the glass fabric as measured by using a split cylinder resonator is greater than 0 and not more than 1.010.sup.3 at 10 GHz.