Provided is a multiple woven gauze fabric capable of controlling the degree of wrinkling according to use. A double woven gauze fabric is formed by stacking a front surface gauze structure A and a back surface gauze structure B. The front surface gauze structure A and the back surface gauze structure B are formed, and the front surface gauze structure A and the back surface gauze structure B are joined, as appropriate. The front surface gauze structure A is composed of a non-twist yarn, and the back surface gauze structure B is composed of a hollow yarn. That is, a gauze structure composed only of twisted yarn (solid yarn) is not included. The degree of wrinkling is controlled by considering the hollow rate of the hollow yarn.

A structure for use in industrial fabrics such as paper machine clothing and engineered fabrics is disclosed. The structure includes axially and radially elastic hollow members, and relatively inelastic yarns in various patterns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.

A structure for use as a compressible ultra-resilient pad is disclosed. The structure includes axially and radially elastic hollow members and relatively inelastic yarns in various patterns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.

A fiber structure including a multi-layered fabric includes a first fabric layer and a second fabric layer. The first fabric layer and the second fabric layer are stacked one over another in the thickness direction of the multi-layered fabric. A warp yarn in the first fabric layer is thicker than a warp yarn in the second fabric layer, and/or a weft yarn in the first fabric layer is thicker than a weft yarn in the second fabric layer, and a pitch in the first fabric layer is smaller than a pitch in the second fabric layer, where each of the pitches refers to a distance between any two main axes of yarns adjacent to each other in each of the warp layer and the weft layer.

Disclosed are exemplary embodiments of woven filtration fabrics that include core-sheath spun yarns in either or both of the warp and weft directions.

An airbag base fabric satisfying characteristics A to D: (A) the cross-sectional deformation (WR), calculated by formula (1), of multifilament warp threads constituting a textile is 4.0 to 6.0,
WR=(Major axis of warp thread cross section in textile)/(Minor axis of warp thread cross section in textile)(1) (B) the cross-sectional deformation (FR), calculated by formula (2), of multifilament weft threads constituting the textile is 2.4 to 4.0,
FR=(Major axis of weft thread cross section in textile)/(Minor axis of weft thread cross section in textile)(2) (C) the single fiber cross-sectional shape of the multifilament threads constituting the textile is substantially circular, and (D) the multifilament threads constituting the textile have total fineness of 145 to 720 dtex, single fiber fineness of 2 to 7 dtex, and tensile strength of 6.5 to 8.5 cN/dtex.

Described herein is an anti-capillary barrier geotextile which includes a wicking yarn in its structure and has a volumetric moisture content at breakthrough of less than 0.30 as determined by the TenCate Test. In one aspect the anti-capillary barrier geotextile is a single-layer woven geotextile and includes a wicking yarn set and, optionally, a first non-wicking yarn disposed in one axis of the geotextile; and a second non-wicking yarn disposed in another axis of the geotextile and interweaving the wicking yarn set and optional first non-wicking yarn.

Disclosed are multi-layer knit fabrics having improved filter properties when applied as fabrics for a mask, including a surface knit fabric, a back knit fabric, and a connection loop, and a mask filter and a mask using the same. The present disclosure provides multi-layer knit fabrics including a surface knit fabric, a back knit fabric, and a connection loop for binding the surface knit fabric and the back knit fabric, in which the surface knit fabric, the back knit fabric, and the connection loop are made of C-shaped yarns, and the connection loop includes a first connection loop and a second connection loop, which are formed in a zigzag shape, and also provides a mask filter and a mask using the same.

Disclosed are multi-layer knit fabrics having improved filter properties when applied as fabrics for a mask, including a surface knit fabric, a back knit fabric, and a connection loop, and a mask filter and a mask using the same. The present disclosure provides multi-layer knit fabrics including a surface knit fabric, a back knit fabric, and a connection loop for binding the surface knit fabric and the back knit fabric, in which the surface knit fabric, the back knit fabric, and the connection loop are made of C-shaped yarns, and the connection loop includes a first connection loop and a second connection loop, which are formed in a zigzag shape, and also provides a mask filter and a mask using the same.

A method for producing a woven heat exchanger, includes providing a plurality of microchannel tubes for insertion into a weaving apparatus and weaving the plurality of microchannel tubes within a central region of the heat exchanger by the weaving apparatus. The method further includes merging the plurality of woven microchannel tubes within a first and second end region arranged on the central region for producing a first and second end portion having a circular cross-section. The method further includes gluing the plurality of woven and merged microchannel tubes within the first and second end region and shortening the plurality of weaved, merged, and glued microchannel tubes within the first and second end region.