The present disclosure discloses a comfortable breathable warp-knitted fabric free of deformation, yarn hooking and unraveling, which includes a fabric body formed by warp-knitting four strands of yarns, wherein the four strands of yarns are respectively a first yarn, a second yarn, a third yarn and a fourth yarn, the first yarn is a closed-end satin stitch, the second yarn is a closed-end tricot stitch, and the third yarn and the fourth yarn both are weft laid-in stitches. According to the present disclosure, the fabric does not unravel during shearing, is convenient to use, does not leave traces on a wearer, and is very comfortable. The present disclosure has the advantages of being free of deformation, yarn hooking and unraveling, comfortableness, breathability, etc.

The present disclosure discloses a comfortable breathable warp-knitted fabric free of deformation, yarn hooking and unraveling, which includes a fabric body formed by warp-knitting four strands of yarns, wherein the four strands of yarns are respectively a first yarn, a second yarn, a third yarn and a fourth yarn, the first yarn is a closed-end satin stitch, the second yarn is a closed-end tricot stitch, and the third yarn and the fourth yarn both are weft laid-in stitches. According to the present disclosure, the fabric does not unravel during shearing, is convenient to use, does not leave traces on a wearer, and is very comfortable. The present disclosure has the advantages of being free of deformation, yarn hooking and unraveling, comfortableness, breathability, etc.

A knitted component may include a first portion, where the first portion at least partially forms an underfoot area of an article of footwear. A second portion may be included, where the second portion at least partially forms an outer surface of a medial or a lateral side of an article of footwear. A forward portion may extend from an end of the first portion and may include a toebox area in a toe region of the knitted component. A knitted connection structure may be located between the toebox area of the forward portion and the second portion, where the second portion includes a first course, where the toebox area of the second portion includes a second course, and where the first course is secured to the second course through the knitted connection structure.

A knitted component may include a first portion, where the first portion at least partially forms an underfoot area of an article of footwear. A second portion may be included, where the second portion at least partially forms an outer surface of a medial or a lateral side of an article of footwear. A forward portion may extend from an end of the first portion and may include a toebox area in a toe region of the knitted component. A knitted connection structure may be located between the toebox area of the forward portion and the second portion, where the second portion includes a first course, where the toebox area of the second portion includes a second course, and where the first course is secured to the second course through the knitted connection structure.

A seamless double layered porous woven structure comprises a seamless circular inner layer structure and a porous outer layer structure. The outer layer structure is weaved upon the seamless circular inner layer structure to provide a seamless double layered tubular structure, which is further gaited together with yarns at the edges of the double layered tubular structure. The inner layer structure is made of circular weaving process while the outer layer structure is made of warp weaving process. There are several porous regions and jacquard regions at the outer layer structure.

A warp knitted fabric formed of yarns fed from at least three guide bars including front, middle, and back guide bars, in which a back yarn fed from the back guide bar forms a cord knit texture, a front yarn fed from the front guide bar and a middle yarn fed from the middle guide bar are arranged alternately in a weft direction, each of the front yarn and the middle yarn forms a stitch formation texture (a denbigh knit texture or a cord knit texture) and an insertion texture alternately in a warp direction, and the insertion texture formed by the front yarn and the insertion texture formed by the middle yarn are arranged alternately at least in the warp direction so that the front yarn and the middle yarn are exposed alternately at least in the warp direction on sinker loops of the back yarn.

A warp knitted fabric formed of yarns fed from at least three guide bars including front, middle, and back guide bars, in which a back yarn fed from the back guide bar forms a cord knit texture, a front yarn fed from the front guide bar and a middle yarn fed from the middle guide bar are arranged alternately in a weft direction, each of the front yarn and the middle yarn forms a stitch formation texture (a denbigh knit texture or a cord knit texture) and an insertion texture alternately in a warp direction, and the insertion texture formed by the front yarn and the insertion texture formed by the middle yarn are arranged alternately at least in the warp direction so that the front yarn and the middle yarn are exposed alternately at least in the warp direction on sinker loops of the back yarn.

Provided is a synthetic leather in which the occurrence of ease wrinkles can be inhibited or reduced. This synthetic leather comprises a cloth (10), and a resin layer (20) laminated on the cloth (10). The cloth (10) is a tricot knitted fabric knitted with front yarn, middle yarn, and back yarn, and having a nap (12). The tricot knitted fabric has a cord stitch structure knitted with the front yarn, a denbigh stitch structure or cord stitch structure knitted with the middle yarn, and an inlay structure or cord stitch structure knitted with the back yarn. The nap (12) is formed by napping a sinker loop side of the tricot knitted fabric.

Provided is a synthetic leather in which the occurrence of ease wrinkles can be inhibited or reduced. This synthetic leather comprises a cloth (10), and a resin layer (20) laminated on the cloth (10). The cloth (10) is a tricot knitted fabric knitted with front yarn, middle yarn, and back yarn, and having a nap (12). The tricot knitted fabric has a cord stitch structure knitted with the front yarn, a denbigh stitch structure or cord stitch structure knitted with the middle yarn, and an inlay structure or cord stitch structure knitted with the back yarn. The nap (12) is formed by napping a sinker loop side of the tricot knitted fabric.

Provided is a spiral membrane element that has a restricted outer diameter and is capable of being decreased in operation energy therefor. The element is a spiral membrane element including plural membrane leaves in each of which a permeation-side flow-channel member is interposed between opposed separation membranes a supply-side flow-channel member interposed between any two of the membrane leaves a perforated central pipe on which the membrane leaves and the supply-side flow-channel member are wound and a sealing part that prevents a supply-side flow-channel member from being mixed with a permeation-side flow-channel member. This element has an efficiency index E of 0.005 to 0.10, and the thickness of the supply-side flow-channel member is from 10 to 110 mil.