Industrial warp-knitted base fabric and method of producing same

Abstract

The invention discloses industrial warp-knitted base fabric of high intensity, large size and good stability. The geometric base fabric with good stability and high strength is knitted from false-twisted yarn and fully-drawn yarn which is made of polyolefin or / and polyphenylene sulfide. The Japanese industrial standard (JIS) L1018 8.14.2 constant load elongation rate test proves that the industrial warp-knitted base fabric has the elongation rate of less than 5 percent; the JIS L10188.13 tensile strength and elongation rate test proves that the industrial warp-knitted base fabric has the tensile strength of 400-1200 N; and the industrial warp-knitted base fabric has the gram weight of 40-500 g / m<2>. To achieve the better geometric stability performance of the base fabric, at least two combs are used for knitting the base fabric, wherein the front comb is used for circularly-knitting, and at least one of the rear combs is used for weft-knitting.

Description

technical field

[0001] The invention relates to a warp-knitted textile, in particular to a warp-knitted textile with stable geometry and high strength. Background technique

[0002] At present, the method of reinforcing non-woven fabrics is generally to use acupuncture technology to compound the base cloth and fiber layer to achieve the purpose of improving the tear strength of non-woven fabrics. The base fabrics currently used in the market are all woven base fabrics. Due to the use of thicker yarns and lower warp and weft density for weaving, the base fabrics have poor delamination resistance and relatively serious slippage of the yarns. , will adversely affect the strength of the composite nonwoven fabric. In addition, if this kind of base fabric is used for the production of film-laminated products, the above-mentioned dedispersibility will have a greater impact on the quality of the product. Invention content:

[0003] The object of the present invention is to provi...