11results about How to "Reduce end break rate" patented technology

The invention provides a false twisting and dividing device for superfine denier high-elastic polyester filament yarn, and belongs to the technical field of polyester yarn processing, the false twisting and dividing device comprises a false twister, the false twister is connected with a vertical rod, the upper end of the vertical rod is provided with a supporting plate and a bearing assembly, the inner side of the bearing assembly is provided with a yarn dividing frame, the false twisting and dividing device further comprises an adjusting assembly, and the adjusting assembly comprises a fixing plate and an adjusting plate; the baking assembly comprises a fixed cylinder; the removing assembly comprises a partition frame plate, a U-shaped frame and a rotating mechanism; the collecting assembly comprises a collecting frame, a mounting frame and a return pipe; the device has the beneficial effects that uniform removal of yarn burrs is completed through mutual cooperation of the baking assembly and the removal assembly, the smoothness of the surfaces of polyester yarns can be improved, the quality of false twisting processing is improved, the abrasion and end breakage rate of the yarns can be reduced, the production efficiency is improved, and the production cost is reduced. And internal stress generated by twisting can be eliminated by utilizing thermal motion of molecules, so that the twisting tension can be reduced.

The invention relates to the technical field of spinning oils, and discloses a low-fuel-consumption polyester FDY spinning oil for WINGS equipment and a preparation method thereof. The components of the spinning oil include a smoothing agent and an anti-splashing agent. The branched structure of the smoothing agent can significantly improve the penetration wettability of the oil to fiber filaments and the oil film strength, and significantly reduce the oil consumption when the spinning oil is used; the structure of the anti-splashing agent includes sulfur and / or phosphorus, and the anti-splashing agent can form a three-dimensional structure in the oil, reduce the splashing effect of the oil during the collision between the oil and the fiber filaments, and further reduce the oil consumption when the spinning oil is used; in addition, the spinning oil emulsion is stable, and there is no obvious corruption phenomenon during a long-term production process. It has the technical effects of strong anti-corrosion, excellent antistatic property, high smoothness, stable and uniform oil content of filament bundles, good spinnability, and low breakage rate.

The invention discloses a textile process of polyester staple fiber warp woven cloth, and belongs to the technical field of textile woven cloth. Spinning of the polyester staple fiber yarn is improved, the strength unevenness of the yarn is reduced, hairiness is reduced, the strength of the yarn is improved, and the end breakage rate during weaving is greatly reduced; the drying-free sizing agent is used for sizing, a sectional warping machine is used for warping and slashing (not drying) to complete a warp beam at a time, the warp beam is directly fed to a water jet loom for weaving, the investment cost of slashing equipment, the labor cost and the steam cost are greatly reduced, the production cost is greatly reduced, and the energy consumption in the spinning process is reduced; the quality and the production efficiency of textile products are improved, energy conservation and environmental protection are realized, the cost is reduced, the efficiency is improved, and the additional value of the products is improved.

The invention discloses a plain-weave through-hole fabric and a weaving method thereof, and belongs to the technical field of textile fabric design and weaving. The plain weave through hole fabric comprises a plain weave, a transition weave and a first weave, the plain weave and the first weave are connected through the transition weave; the first weave is a plain weave, a stripe weave or a through hole weave. In addition, the invention further provides a weaving method of the plain-weave through-hole fabric, and the weaving method comprises a longitudinal weaving mode and a transverse weaving mode. According to the plain ground through hole structure, the wrinkling phenomenon is basically eliminated, the pattern effect of the fabric is obviously improved, and the end breakage rate in the weaving process is reduced.

The invention provides a high-melt-strength regenerated polyester fiber fine-denier filament and a production process thereof, and relates to the technical field of fiber production. The high-melt-strength regenerated polyester fiber fine-denier yarn is prepared from the following raw material components in parts by weight: 100 parts of regenerated polyester and 0.5 to 5 parts of POSS (Polyhedral Oligomeric Silsesquioxane) modified polyurethane, the POSS modified polyurethane is obtained by reacting polyester polyol with a polyisocyanate compound and then reacting with monoamino POSS. Preferably, the degree of functionality of one of the polyester polyol and the polyisocyanate compound is gt; 2. The high-melt-strength regenerated polyester fiber fine-denier filament has the characteristics of high melt strength, high tensile strength and the like, and the spinning stability and the production efficiency can be obviously improved.

The present invention belongs to the field of polymer synthetic materials, and specifically relates to a kind of PBT fiber with stable melt viscosity and low breakage rate and a preparation method thereof. By accurately controlling the production parameters of temperature, pressure and reaction time of each step, the process is made more scientific; by refining and accurately producing process parameters, the multi-step reaction increases the contact probability between materials, avoids the change of reaction conditions during production, and the obtained product performance parameters are more stable and uniform, effectively reduces energy consumption, realizes the controllable polymerization of PBT performance parameters, and the prepared PBT fiber has stable melt viscosity and low breakage rate. The present invention can be applied to industrial production, and is of great significance for expanding product categories and reducing idle production lines.

The invention relates to a skin layer material for a skin-core fiber, a biodegradable skin-core fiber containing the skin layer material, and a preparation method of the skin-core fiber. The surface layer material is a surface layer PBAT / PBS material, and the surface layer PBAT / PBS material is a product obtained by melting and blending 10-90 parts by weight of PBAT, 10-90 parts by weight of PBS and a transesterification catalyst accounting for 0.05-0.2 wt% of the total weight of the surface layer PBAT / PBS material and carrying out transesterification reaction. The skin layer material is PBAT obtained after PBS ester exchange modification, so that PBAT and PBS have good compatibility, and spinning processing is better facilitated.

The double-action electronic faucet device with the clear opening comprises supporting frames (2) installed at the two ends of a rotating shaft (1), and a first eccentric wheel (31) and a second eccentric wheel (32) are fixedly connected to the positions, located on the two supporting frames (2), of the rotating shaft (1). The first eccentric wheel (31) and the second eccentric wheel (32) are each composed of two fan-shaped parts (33) which are connected through an arc transition part (34) and are different in radius, a first swing arm (41) abutting against the circumferential face of the first eccentric wheel (31) and a second swing arm (42) abutting against the circumferential face of the second eccentric wheel (32) are rotationally connected to the supporting frame (2), and the first swing arm (41) and the second swing arm (42) are both connected with a griffe through a connecting rod (43). The utility model has the characteristics that the opening is clear, and the effective opening time is prolonged.

The utility model discloses an air bag type buffering device which structurally comprises a supporting beam, a supporting plate, a baffle, a yarn guide plate, an elastic steel plate structure, an air bag structure and an air path device. The air path device is connected with the air bag structure, the air bag structure is fixed on the supporting beam, the elastic steel plate structure is connected with the supporting plate, the baffle and the yarn guide plate are connected with the supporting plate, the supporting plate is connected with the supporting beam, and the supporting beam is connected with the weaving machine. According to the buffer device, the air bag type buffer structure is adopted, so that tension adjustment of different fabrics and yarns during weaving of the weaving machine is realized. By arranging the air path device, the air pressure in the air bag can be freely adjusted, the device can adapt to any yarn and fabrics with different tensions, the variety adaptability is improved, the buffering effect is soft, the end breakage rate of warp is reduced, the cloth cover quality is improved, the service life of parts is prolonged, and therefore the weaving cost is saved, the fault rate is reduced, and the production efficiency is improved.

The invention discloses a drawing frame winding forming mechanism and an intelligent control method thereof, and relates to the technical field of spinning, the drawing frame winding forming mechanism comprises a base, a translation mechanism, a clamping mechanism and a rotating mechanism, the translation mechanism is installed in the base, and the clamping mechanism and the rotating mechanism are both installed on the translation mechanism; the clamping mechanism is arranged on the outer side of the rotating mechanism; the translation mechanism comprises a dragging box, a lapping plate, a belt transmission unit, a driving part and a sensing unit; the invention further discloses an intelligent control method of the drawing frame winding forming mechanism. According to the winding forming mechanism of the drawing frame, through servo cooperation and program control, accurate dynamic laying of a cotton sliver track can be achieved through an optimized high-density space filling curve, the space filling rate in a can and the stability of a winding structure can be remarkably improved, the can changing frequency is reduced, and the production efficiency is improved; and the system has the advantages of flexible process, intelligent adjustability, reliable operation, simplicity and convenience in maintenance and the like, and provides key support for continuous and automatic production.

The invention relates to the technical field of pre-oxidized fibers, and particularly discloses a cotton spinning pre-oxidized fiber and a preparation method thereof. The preparation method comprises the following steps: mixing a polyacrylonitrile precursor with a first modified oil agent to obtain a pretreated precursor; the first modified oil agent comprises polytetrafluoroethylene dispersion liquid, nano aluminum oxide and a silane coupling agent; carrying out gradient pre-oxidation on the pre-treated precursor in an air atmosphere under the conditions that the temperature is 215-255 DEG C and the tension is 1650-2100 cN, so as to obtain a pre-oxidized fiber; immersing the pre-oxidized fiber into a second modified oiling agent for oiling and curling to obtain a cotton spinning pre-oxidized fiber; the second modified oiling agent comprises an antistatic agent, a bundling agent and a moisture absorption friction increasing agent. According to the invention, the structural stability and antistatic property of the fiber are improved by controlling the condition parameters of pre-oxidation and optimizing the components and proportion of the first modified oil agent and the second modified oil agent, so that the spinnability of the cotton spinning pre-oxidized fiber is improved, and high-quality and large-scale cotton spinning processing of the pre-oxidized fiber is realized.