32results about How to "High fabric strength" patented technology

Branched crystalline polypropylene compositions and methods for the preparation of branched crystalline polypropylene compositions are provided. For example, described herein is a process of preparing branched crystalline polypropylene composition that comprises contacting a supported metallocene catalyst compound with a polymerization medium that comprises propylene monomers; and conducting polymerization of the propylene monomers at a temperature greater than 70° C. for a time sufficient to provide branched crystalline polypropylene that has from 0.0 wt % to 2.0 wt % ethylene and a heat of fusion of 70 J / g or more.

The invention discloses a cotton and polyester bunchy heterochromatic interwoven fabric, wherein CJ9.7 tex is adopted as warp, CJ11.6Ztex+T11.8Ztex is adopted as weft; and the fabric texture adopted is a 1 / 1 and 2 / 2 modified rib weave. According to a processing process of the cotton and polyester bunchy heterochromatic interwoven fabric, special technological conditions are adopted in processes such as spinning, weaving, and dyeing and finishing. The fabric and the processing process have the beneficial effects that a novel polyester bunchy yarn of the fabric is spun by applying the conventional polyester raw material, a heterochromatic dyeing effect is represented after the novel polyester bunchy yarn is interwoven and dyed with a cotton bunchy yarn, and a considerable effect is achieved after the two conventional fibers are interwoven through the innovative design. Because of embedding of the polyester bunchy yarn, the crease resistance of a cotton product is also improved, the strength and the washing fast-drying property of the fabric are increased and the like, low cost and good quality are realized, and the market positioning on the cost performance of the product is met. The product design has innovativeness and systematicness. During printing and dyeing processing, the heterochromatic effect of the fabric is achieved by using a cotton and polyester heterochromatic dyeing process through an improved process.

The invention discloses a high-density carbon fiber needled felt, which is formed by stacking and needling structural units, each comprising a carbon fiber mesh base and a carbon fiber stretch fabric.The carbon fiber fabric prepared with stretch fibers replaces common carbon fiber fabric, the thickness of the carbon fiber fabric is reduced, the rebound in the needling process caused by gaps amongthe carbon fibers is reduced, and therefore, the overall density and mechanical strength of the carbon fiber needled felt are improved. In addition, the service life of a felting needle for the high-density carbon fiber needled felt can be extended.

The invention relates to printing and dyeing methods, particularly to a cotton-viscose blended fabric reactive dyeing production process. The cotton-viscose blended fabric reactive dyeing production process is applicable to new production processes of dyeing cotton-viscose woven fabrics with an overflow dyeing machine. The cotton-viscose blended fabric reactive dyeing production process is implemented according to the following steps of fabric sample selection, technical process design, gray fabric singeing, alkali desizing design and washing, setting of pretreatment formulas and processes andreactive dye dying formulas and processes, sample vat dyeing, setting of dyeing, oiling and setting processes, after-finished product pre-shrinking, and finished product inspection. The cotton-viscose blended fabric reactive dyeing production process changes the dye yield and the color saturation of cotton fiber of cotton-viscose fabric non-mercerizing processes, ensure consistent dye yield of cotton fiber and viscose fiber, solves the problem of color difference between the cotton fiber and the viscose fiber, and meanwhile, reduces damage of dyeing processes to the viscose fiber and greatlyimproves the strength of fabrics and the quality of products to meet the increasingly strict requirements of clients on quality.

A double-faced woven fabric includes a first and a second weave unit interlocked to each other at a plurality of stitching points. The first weave unit includes a plurality of interlaced first warp and weft threads to define a first face, and the second weave unit includes a plurality of interlaced second warp and weft threads to define a second face, which is not coplanar with the first face. The stitching points are formed by crossing the first warp threads over predetermined second weft threads, so that the stitching points are always covered by float second warp threads adjacent to the stitching points. The double-faced woven fabric with the interlocked first and second weave units has largely increased fabric strength and can present different textures, colors or patterns on the first and the second face to thereby provide good applicability.

The invention provides celestial-axis glass fabric and a weaving method thereof, and the celestial-axis glass fabric comprises warps and wefts. The celestial-axis glass fabric is characterized in thatthe warps comprise two thick warps and one fine warp, the wefts comprise two thick wefts, the two thick warps are arranged side by side, the two thick wefts are arranged side by side, the two thick warps and the two thick wefts are woven into gridding cloth, the fine warp is positioned between the two thick warps, and the fine warp and the two thick warps are arranged side by side, the fine warpis crossed and woven with the two thick warps for clamping the two thick wefts between the fine warp and the two thick warps. For the fabric, the fine warp is arranged between the two thick warps sideby side, and the fine warp is crossed with the thick warps for clamping the thick wefts between the fine warp and the two thick warps, so that the wefts are fixed and do not deviate, and therefore, stability of fabric is improved, and fabric strength is improved.