344results about How to "Strong and good" patented technology

The invention provides a high-strength stretch-proof flame-retardant textile. The flame-retardant textile is formed by weaving a flame-retardant composite yarn, wherein the flame-retardant composite yarn is formed by compounding a core yarn and a leather yarn and is one of a covering yarn and a fasciated yarn; the core yarn adopts a flame-retardant filament yarn as a raw material; the leather yarn adopts a flame-retardant short fiber as a raw material; and the weight ratio of the flame-retardant filament yarn to the flame-retardant short fiber is 30-90:10-70. Compared with the conventional flame-retardant textile, the high-strength stretch-proof flame-retardant textile has higher strength and overcomes the defects of difficult weaving, difficult dyeing and uncomfortableness of the high-strength fiber; the high-strength stretch-proof flame-retardant textile has permanent flame retardance which cannot decrease after the textile is washed, and better textile strength; the textile has soft and comfortable handfeel, rich color and good strength, meets the requirements of various flame-retardant clothes and related standards; the product has rich and varied appearances and is durable; and the combustion performance of the textile can meet the national standards of flame-retardant products.

Provided are high-temperature resisting flame-retarding composite polysulfonamide fiber yarns and a manufacturing method. The manufacturing method is used for providing high-quality yarns for high-temperature resisting flame-retarding fabrics. The technical scheme is that the yarns are 16.7*2 tex yarns formed by spinning raw materials including polysulfonamide fibers 50-70%, flame-retarding mucilage glue 28-48% and conductive fibers 1-2%, wherein the conductive fibers are carbon fibers. Proportions of various raw materials are prepared reasonably, a best proportion is obtained through multiple technological optimization, related technological parameters are further controlled in the processes including opening and picking, cotton carding, drawing, roving, spinning, plying and the like according to the characteristics of the raw materials so as to enable various fibers in products to be distributed evenly, the requirements of high-temperature resistance and flame retarding are met, the yarns are detected according to the SJ/T11090-96 standard, and density of electric charge caused by friction of the fabrics manufactured by the yarns reaches to the standards of first-grade products.

At present, researchers do the research of reasonable utilization of chrome-containing leather shavings all the time; however, the leather shavings of leather making enterprises are difficult to treat in batch. The invention provides an environment-friendly collagen fiber leather substrate which is characterized by comprising an intermediate-layer fiber web, a surface-layer fiber web tightly connected on the upper surface of the intermediate-layer fiber web, and a bottom-layer fiber web tightly connected on the lower surface of the intermediate-layer fiber web, wherein the surface-layer fiber web and the bottom-layer fiber web respectively comprise the components by mass percentage of: 90 to 97 percent of collagen fibers, 3 to 10 percent of polylactic acid bi-component fibers; the intermediate-layer fiber web is made of polylactic acid bi-component fibers; the weight of the surface-layer fiber web and the weight of the bottom-layer fiber web are both 30 to 150 grams per square meter; and the weight of the intermediate-layer fiber web is 10 to 30 grams per square meter. The non-woven synthetic leather substrate prepared by using collagen fiber extracted from leather leftovers has good simulation performance, avoids secondary pollution to the environment, and is beneficial to the follow-up coating of PU (polyurethane).

An automatic classification method for distinguishing between indolent and clinically significant carcinoma using multiparametric MRI (mp-MRI) imaging is provided. By utilizing a convolutional neural network (CNN), which automatically extracts deep features, the hierarchical classification framework avoids deficiencies in current schemes in the art such as the need to provide handcrafted features predefined by a domain expert and the precise delineation of lesion boundaries by a human or computerized algorithm. This hierarchical classification framework is trained using previously acquired mp-MRI data with known cancer classification characteristics and the framework is applied to mp-MRI images of new patients to provide identification and computerized cancer classification results of a suspicious lesion.

The invention provides degradable polyurethane. The degradable polyurethane comprises the following raw materials by mass: 5.30 to 38.00% of poly(propylene carbonate) polyol, 0 to 31.00% of polyester dihydric alcohol, 0 to 15.50% of polyether dihydric alcohol, 9.20 to 13.50% of diisocyanate, 0.02 to 0.04% of a catalyst, 1.80 to 3.10% of a chain extender and 50.00% of an organic solvent, wherein the contents of the above-mentioned raw materials sum to 100%. The invention further discloses a preparation method for the polyurethane. The method comprises the following steps: preparing three precursors from weighed raw materials, selecting one of the three precursors, putting the selected precursor in a reaction vessel, subjecting the precursor to vacuum-pumping and dehydration so as to obtain a dehydrated precursor and then mixing diisocyanate, the catalyst and the dehydrated precursor so as to obtain a prepolymer; and mixing the organic solvent, the chain extender and the prepolymer so as to obtain the degradable polyurethane. The degradable polyurethane provided by the invention has good storage stability, excellent film properties and good degradability.

The invention discloses a method for processing fine-count flax/cotton blended knitted fabric, which is characterized in that: processes such as demineralization, high-temperature boiling and soft finishing of yarn are added prior to a conventional weaving process, and the processes of mercerization, biological enzyme treatment, fabric soft finishing, calendering and shape forming are added in a dyeing and finishing process. The method has the following advantage that: the fine-count flax/cotton blended knitted fabric processed by the method has relatively higher strength, is hardly damaged in the weaving process and has soft and smooth hand feel, bright and clean fabric surface, luster, shape-preserving property, comfortableness and stiffness.

The invention aims to provide polytetrafluoroethylene chopped fiber with high intensity, high uniformity and low production cost and preparation technology thereof. A process flow comprises the following steps of: mixing polytetrafluoroethylene micro powder and a lubricating agent; stirring; standing; performing pre-compression molding; performing push molding; performing rolling molding; drying; performing hot stretching; parting off; twisting; performing primary hot drawing; performing secondary hot drawing; curling and thermally forming; cutting off; loosening; and inspecting and packaging so as to obtain high-intensity polytetrafluoroethylene chopped fiber. In a manufacturing process, the temperature rises gradually from the primary hot stretching to the secondary hot stretching to the curling and thermally forming.

The invention discloses a dyeing and finishing process for a polyester blended fiber fabric. The process comprises the following steps of 1, pretreatment, wherein the polyester blended fiber fabric is sequentially subjected to scouring, bleaching and enzyme washing; 2, mercerizing and sizing, wherein the fabric is subjected to padding of alkali liquor under the room temperature for pre-sizing; 3, dyeing, wherein the fabric is soaked into dye liquor formed by disperse dyes, dyeing is performed under the temperature of 30-40 DEG C, temperature is increased to 90-110 DEG C at the heating rate being 0.8-1 DEG C/min, washing is performed through warm water, infrared ray pre-heating is performed, and then hot-blast air drying is performed; padding is performed again under the room temperature to reduce the suspended solid dye liquor formed by dyes, a reduction solution is subjected to padding, steam reduction and oxidation are performed, washing is performed through warm water, soaping is performed, and then washing and drying are performed; 4, after-treatment, wherein soft and flame-proof treatment is performed in sequence. According to the dyeing and finishing process for the polyester blended fiber fabric, the touch feeling, elasticity and other properties of the fabric are improved remarkably, dyeing is uniform, the color fastness is high, and the color is full.

The invention relates to a polyester/cotton blended flame-retardant core spun yarn and a production method thereof. The yarn is produced by blending 40 to 60 weight percent of polyester and 40 to 60 weight percent of cotton fibers. A process comprises the following steps: performing opening picking and carding on polyester to obtain polyester card slivers, performing blowing-carding, pre-drawing and combing on cotton to obtain cotton drawn slivers, performing drawing, roving and spinning on the polyester card slivers and the cotton drawn slivers to obtain polyester/cotton core yarns, and performing plasma pretreatment and yarn flame-retardant finishing to obtain flame-retardant polyester/cotton core yarns; blending polyester fibers and cotton fibers by a blowing-carding procedure, and performing pre-drawing, combing, drawing and roving to obtain polyester/cotton covering thick yarns; performing spinning on the obtained flame-retardant polyester/cotton core yarns and the obtained polyester/cotton covering thick yarns to obtain polyester/cotton blended core spun yarns in a core spinning manner, and performing plasma pretreatment and yarn flame-retardant finishing to obtain polyester/cotton blended flame-retardant core spun yarns. According to the polyester/cotton blended flame-retardant core spun yarn and the production method thereof, polyester and cotton are blended in the core spinning manner, and the core yarns and spun yarns are subjected to flame-retardant treatment, so that the spun yarns have high flame retardance.

Disclosed is an acoustic probe/wedge holder that facilitates the operation of holding and sliding the probe over often non-flat test surfaces. The probe/wedge holder is configured to allow the adjustment of the probe/wedge so that the footing of the probe holder and the test surface of the probe or wedge collectively match the surface of a test object, allowing the probe or wedge to have intimate contact with the test surface and the probe holder to be stably disposed on or gliding over the surface of the test object. The surface of the test object is often of non-flat surface, such as that of a pipe.

The invention discloses a piece dyeing method of cotton binding textiles, which is characterized in that the invention has the concrete processing process comprising the steps of singeing, desizing, light scouring and bleaching, pre-setting, rendering, color fixation soap washing, forming and preshrinking. The invention has the advantages that the cotton binding textiles obtained through being processed by the method have the advantages of uniform cloth surface color, good luster, high intensity and low washing shrinkage rate, and in addition, the production processing efficiency of the method is high. In addition, the mixed alkali treatment is adopted in the light scouring and bleaching process, so the invention ensures that the processed cotton binding textiles have certain whiteness and water absorption performance, in addition, the plant intensity of the textiles can not be damaged to the furthest extent, and the narrow width of the textiles caused by shrinkage in the following processing work procedure can be avoided through improving the hydrophilicity of the textiles and widening the width of the textiles via the pre-setting process.

The invention provides a manufacturing method of washable non-curling knitting collars and cuffs. The knitting collars and cuffs comprise piece dyeing knitting collars and cuffs and yarn dyeing knitting collars and cuffs; for the piece dyeing knitting collars and cuffs, the method comprises the following steps of knitting, boiling off, enzyme washing, dyeing, squeezing and drying, mercerizing by liquid ammonia, neutralizing, softening, squeezing and drying, soaking in resin, collar rolling and pre-drying, baking, and collar removal; for the yarn dyeing knitting collars and cuffs, the method comprises the following steps of knitting, water washing and oil removal, enzyme washing, squeezing and drying, mercerizing by liquid ammonia, neutralizing, softening, squeezing and drying, soaking in resin, collar rolling and pre-drying, baking, and collar removal. The knitting collars and cuffs manufactured by the method have the advantages that the hand feel is soft after mercerizing by the liquid ammonia, the rebounding property, strength, size stability and washability are obvious improved, the deformation and curling of the collars and the cuffs are avoided after 20 times of water washing, and the good rebounding property is realized; the color change and the fuzzing and pilling resistance respectively reach more than level 4.