47results about How to "Increase the degree of splitting" patented technology

The invention relates to a blending method using a hemp fiber as a main material. The method comprises the following steps of: firstly, processing the hemp fiber into rovings; secondly, mixing the roving yarns of the hemp fiber with the rovings or filaments of other fibers in proportion to form bunch yarns; and finally, spinning the mixed bunch yarns in the second step into spun yarns. The blending method has the advantages of improving the disintegration degree of the hemp fiber and removing impurity without damaging the performance of the blended fibers, ensuring a high spinning yam count and quality of the blended yarns and greatly improving the quality of the blended yarns of the hemp fiber along with simple process.

The invention provides a wet spinning method of low-proportion high-spun flax macrofiber, which comprises the steps of: a first step, combing original flax fiber to obtain flax macrofiber; a third step, carrying out hemp proportioning on the flax macrofiber obtained after crystal transition modification in a former step, gilling, paralleling and spinning by a roving process to obtain flax roving; and a fifth step, carrying out wet spinning on the flax roving obtained after water blanching in a former step by a wet spinning frame to obtain the flax yarn. The wet spinning method is characterized in that a second step of carrying out crystal transition modification treatment on the flax macrofiber is performed between the first step and the third step, and a fourth step of carrying out water blanching on the flax roving is performed between the third step and the fifth step. The method has the advantages that the utilization ratio of the flax macrofiber is greatly improved and reaches more than 70%, and the material resources are saved; high-count linen yarn can be spun according to the fiber proportion of the traditional wet spinning method; and the water blanching replaces the scouring blanching in the traditional wet spinning method, so that the process is simplified, the energy sources are saved and the cost is lowered.

The invention relates to a sesaron combing and sorting method and a device; combed ramie stripes with different specifications and lengths are obtained through a plurality of layers of combing; the split degree of the ramie stripes is decided by comb needle models used in all the layers of combing; and the lengths of the ramie stripes are changed by adjusting a pulling vehicle. In a combing and sorting mechanism of the device, circular comb needle strips are lined in a circumference of 0 to 270 degrees respectively through a rack method and a rack and needle row combined method, and top combs are in a single row or a plurality of rows. A pulling separation mechanism comprises the pulling vehicle, the pulling vehicle is arranged on a regulation frame, the regulation frame is provided with a rod and a circular arc-shaped chute, a bolt is inserted into the circular arc-shaped chute, the bolt is fastened on a frame, the bolt is loosened, and the regulation frame can slide along the circular arc-shaped chute by triggering the rod. At least two pairs of curl rollers are arranged in a strip discharge mechanism. The ramie stripe fibers processed by the method and the device are even and uniform, have short fiber rate, uniform fiber length and low ultra-long length fiber content, so that the fibers are more parallel and straighter, the operation is convenient, the efficiency is high, and the labor intensity is low.

The invention provides a method integrated with long spinning, wet spinning and blended spinning for bast fibers. The method comprises the following steps: the bast fibers are scotched into flax; the flax is humidified and soaked for a period of time; the flax is carded into long flax; and the long flax is subjected to matching, silvering, drawing, roving, scouring, bleaching, spinning, drying and winding. The method is characterized in that after the bast fibers are bleached, the obtained rove of the bast fibers and rove or filaments of other fibers are blended on a spinning machine. With the method, blended fibers are not bleached and scoured together with the bast fibers, so the defect that the performance of blended yarn is affected due to the damage of bleaching and scouring agents to the blended fibers in the prior wet spinning and blended spinning is overcome, and the obtained blended yarn has the characteristics of bright and clean yarn body, less hairness, evenness and good wear resistance. In addition, the method can fully play a role in respective advantages of the bast fibers and the blended fibers, complement respective disadvantages of the bast fibers and the blended fibers, has simple process, is favorable for improving the quality of blended yarn of the bast fibers, and realizes the high count, high grade and diversification of varieties of the bast fibers.

The invention relates to a mechanical rolling-exploding-carding for edulcorating combined degumming method for hemp, belonging to the technical field of textile fiber processing. A product hemp fiber with original color is obtained through pre-treatment, explosion, chlorine bleaching, drying, edulcorating and post-treatment. The hemp fiber produced by the method provided by the invention is fluffy and flexible, and shows the original color of the hemp. The lignin content can be reduced to below 1%, the fiber fineness ranges from 200 to 600 Nm, and the process fiber is 25mm-50mm long. According to the degumming method provided by the invention, except for a spinning lubricant agent which has a softening effect, a penetrant, sodium hypochlorite and crude oil, any other chemical reagent is not used in the whole degumming process, so that the environment-friendly physical degumming method is free from environmental pollution and damage to fibers.

The invention relates to a hemp fiber manufacturing production line, in particular to a processing system for processing hemp into hemp fiber. The processing system for processing the hemp into the hemp fiber comprises devices for arranging hemp, degumming, dividing fiber and water washing, rinsing and softening, drying, softening and oiling, permeating and health maintaining, crush cutting and teasing, and combing and arranging; a degumming device comprises a mechanical degumming device, a biological degumming device and a high-temperature scouring-bleaching degumming device, and the device is special; a yarn hanging rack is composed of a hollow post and a plurality of hollow beams in a connecting mode, the hollow beams are provided with a plurality of hanging rods, and a plurality of holes are formed in the sides of the hanging rods; the crush cutting and teasing use a drafting roller set and a snapping roller set, and the drafting roller set and snapping roller set run in differential speeds and pressurize simultaneously. The combing and arranging use a round comb and a top comb to comb and a pulling vehicle to pull, along the rotating direction, the density of gill bars is increased gradually, and the fineness is reduced gradually. The processing system for processing the hemp into the hemp fiber changes a traditional hemp processing device, improves the long hemp yield and facilitates subsequent processing, and the produced hemp fiber is stable in quality.

The invention relates to a fiber bundle dividing and washing method and a fiber bundle dividing and washing device. The method comprises the following steps of: 1) arranging a plurality of groups of fiber dividing and washing units and a fiber output unit on a frame, wherein each unit is provided with a running rotating crawler; 2) passing a feeding roller through a crawler input end of each fiber dividing and washing unit so as to convey the fiber bundle forward, making the fiber bundle enter a fiber dividing and washing area which is provided with a beater and a fiber dividing roller at intervals, simultaneously opening a high pressure water pipe which is arranged above the beater and the fiber dividing roller, and performing washing soaking, beating, carding and fiber dividing on the fiber bundle edges; 3) feeding the fiber treated by the previous fiber dividing and washing unit to the next fiber dividing and washing unit for continuous fiber dividing and washing; and 4) feeding the fiber treated by the last fiber dividing and washing unit into a fiber dividing input area, performing water squeezing operation through a squeezing roll, feeding the fiber into a cloth arrangement mechanism, arranging and folding the strip-shaped fiber through the cloth arrangement mechanism, and feeding the fiber into a fiber storage box. The fiber bundle dividing and washing method and the fiber bundle dividing and washing device can be widely applied to fiber dividing and washing treatment for various bast fibers, leaf fibers, and grass family fibers.

The invention relates to a short-flow environment-friendly degumming and bleaching method for hemp fibers. The method is characterized by performing one-bath degumming and bleaching on hemp bast by adopting a deep oxidation principle and utilizing materials such as a nano-clay preparation, hydrogen peroxide and the like. The method comprises the following steps of: 1) performing impurity-removing washing on the hemp bast for 1 to 3 times by using recycled washing water; 2) performing temperature-rising washing on the hemp bast for 1 to 3 times by using the recycled water again; 3) performing the one-bath degumming and bleaching on the hemp bast by using 3 to 4 g/l nano-clay preparation, 3 to 4 g/l sodium hudroxide, 1 to 2 g/l sodium carbonate and 5 to 10 g/l hydrogen peroxide; 4) washing with water after performing the one-bath degumming and bleaching; and 5) processing the hemp bast into ramie cotton blended yarns after shaking hemp, curing and drying. Compared with the prior art, the method has the advantages that: the processes of embossing the hemp and beating the hemp are saved by adopting a deep oxidation method; the production flow is shortened; and the water dosage is greatly reduced; 2) the whiteness and the softness are high; and 3) the chemical oxygen demand (COD) value of the process waste water is low.

The invention relates to flax tow-to-yarn direct spinning method. It includes the following steps: combing, gilling, roving, boiling off, bleaching, spinning, and tow-to yarn direct spinning. The invention has the advantages of little fiber damage, high regularity, increasing flax yarn quality, simplifying original spinning system, shorting process scheme.

The invention relates to a China hemp fiber one-step fiber forming and carding machine and belongs to the technical field of design and manufacturing of China hemp combined fiber forming and carding machines. Equipment is composed of a vehicle wallboard and an equipment body. The equipment body is composed of a feeding part, a carding region I, a carding region II and a net strip forming part. A transferring licker-in roller is arranged between a cylinder A and a cylinder B, and a doffer is arranged at the front part of the cylinder B. Transferring rollers above the cylinder A and the cylinder B are respectively provided with a small chain wheel. During operation, a hemp roll is unwound and fed to a roller to be held and then is fed into the cylinder A, a hemp layer is stripped and carded step by step in the cylinder A, then the hemp layer subjected to carding enters the cylinder B, carding treatment is carried out on the hemp raw material by virtue a working roller and a transferring roller, and finally the net strip is output. The machine provided by the invention has the characteristics of simple equipment structure, short operational process, one-step carding, less wet dissipation, optimum degree of carding strength, improvement of the split degree and increase of fiber length, thereby solving the problems of the existing equipment.

A biological treatment method of flax staple fibre relates to a method for preparing flax staple fibre. Said method includes the following steps: a). enzyme catalysis degradation; (b). dissolution by using hot water; (c). extraction; (d). dissolution by hot water; (e). dewatering; (f). softening; (g). dewatering; (h). oven-drying; and (i). mechanically-splitting fibre.

A ramie blended yarn processing method includes the following steps: opening is conducted on ramie fiber and other fiber besides the ramie fiber respectively; stowing and preserving are conducted on the ramie fiber obtained after the opening treatment so as to soften the ramie fiber, and refined ramie fiber is obtained; the refined ramie fiber and the other fiber obtained after the opening treatment are mixed and spread to be fiber web, cotton carding is conducted on the fiber web, and blended card slivers are obtained; drawing, roving, and spinning are sequentially conducted on the blended card silvers, and the ramie blended yarn is obtained. The ramie blended yarn processing method is used for ramie blended yarn, the quality of formed yarn is improved, the ramie blended yarn with a higher ramie blending proportion can be obtained, and the technological process is shortened.

The invention relates to a hemp fiber woven product and an application thereof, and aims to solve the problems that the existing hemp fiber woven product is low in quality and difficult to impart highcount so that the application thereof is limited. The hemp woven product is formed by blending and weaving hemp fibers and other fibers, wherein the other fibers include ES (ethylene-propylene side by side) fibers, Visil fibers and cotton fibers; the hemp fiber woven product manufactured by the invention is used for manufacturing a filter screen. The hemp woven product disclosed by the inventionallows the hemp fibers to be blended with the ES fibers, the Visil fibers and the cotton fibers, and the hemp woven product is treated by a special process, so that the hemp woven product is soft to touch, smooth and stiff, natural and comfortable, high in processing and production efficiency, high in splitting degree, low in product loss and good in quality, and the high count degree of the hempfibers can be produced is increased. The hemp fiber woven product is applied to the field of hemp fiber manufacture.