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1061results about "New-spun product collection" patented technology

Figured sea-island super-fine fiber, and preparation method thereof and synthetic leather preparing process method using same

The invention relates to a figured sea-island super-fine fiber, and a preparation method and a synthetic leather preparing process method using the same, which belong to the technical field of leather and leather manufacture methods. The figured sea-island super-fine fiber is characterized in that the weight percentage ratio of island components of the fiber to sea components of the fiber is 50 percent to 80 percent/50 percent to 20 percent, wherein the island components are polyamide (PA) 6 or polyethylene terephthalate (PET), and the sea components are polyolefins or phospholamban (PLB) or polyvinyl alcohol (PVOH). The preparation method comprises the steps of slice drying and melting, composite spinning, oiling and falling into a barrel, drafting curling and drying cutting. The synthetic leather preparing method comprises the following steps that: 1. the components are sequentially prepared into a single-layer fiber net, a composite layer fiber net, needle-punched non-woven cloth and needle-punched non-weaving cloth; 2.soakage and coagulation are sequentially carried out on the non-weaving cloth, the non-weaving cloth is washed, so that a synthetic leather impregnated substrate is formed, repeated soaking squeezing, azeotropic distillation and drying are sequentially carried out, so the synthetic leather is obtained. The synthetic leather produced by the invention has the advantages of excellent mechanical performance, excellent dyeing performance, excellent dyefastness, better production controllability, economy and environment protection. Compared with natural leather and products of the natural leather, the synthetic leather has the advantages that use performance such as durability, weatherability, antibacterium mothproofing, dyefastness and the like of products is much superior to that of the natural leather and the products of the natural leather.
Owner:烟台万华超纤股份有限公司

Device for preparing nano fibers with ordered arrangement and cross structures

The invention belongs to the technical field of electrostatic spinning, and relates to a low-pressure centrifugal electrostatic spinning device for preparing nano fibers with ordered arrangement and cross structures for nano electronic devices and optical devices. A spinning solution container with a processed hollow stainless steel needle is fixed on the upper side of an insulating rotary table, a rotary shaft of a rotary motor is connected with the insulating rotary table together through an insulating support body and drives the insulating rotary table to rotate, the processed hollow stainless steel needle is connected with an anode of a high-voltage power supply, a metal rod coaxial with the rotary shaft is fixed at the circle center of the insulating rotary table, and the metal rod is communicated with the processed hollow stainless steel needle through a metal lead; both a rotational speed control panel of the motor and the high-voltage power supply or a voltage control panel have a power supply switch and an adjusting knob; and the cathode of the high-voltage power supply is connected with an annular metal collector and grounded. The device has the advantages of simple structure, reliable principle, low working voltage and good safety; and the prepared nano fibers have high order degree and attractive appearance.
Owner:QINGDAO UNIV

Method for manufacturing flexible stretchable device based on ordered arrangement torsion structure

InactiveCN104153128AAccurate realization of pre-strain controlAchieve pre-strain controlNew-spun product collectionFilament/thread formingPre strainElectrospinning
The invention belongs to the technical field of flexible device manufacturing, and relates to a method for manufacturing a flexible stretchable device based on an ordered arrangement torsion structure. The method includes the steps that firstly, a flexible macromolecule substrate is pre-stretched to be fixed to a glass sheet, and electrodes are manufactured at the four edges of the pre-stretched flexible macromolecule substrate; secondly, the flexible macromolecule substrate is placed on an annular metal collector connected with the negative electrode of a power source to serve as a collecting substrate, and a machined hollow stainless steel needle serves as a spinning spraying head; a spinning solution is injected into a spinning solution container for electrospinning; the flexible macromolecule substrate is horizontally rotated by 90 degrees for continuous electrospinning and then taken down from the glass sheet, and the flexible stretchable device based on an ordered arrangement torsion structure is obtained. The method is simple in manufacturing process and convenient to operate; the manufactured flexible stretchable device can be stressed and tensioned in one or two of the two-dimensional directions respectively, pre-strain control over materials in the two directions can be accurately achieved, and the application range is wide.
Owner:QINGDAO UNIV

Method and system for preparing nanofiber coating on surface of yarn or fiber bundle

The invention discloses a method and a system for preparing a nanofiber coating on the surface of a yarn or a fiber bundle and belongs to the field of the textile industry. The method includes: arranging a spinning sprayer and a collector oppositely by a certain distance so that the yarn or the fiber bundle passes through between a nozzle of the spinning sprayer and the collector; continuously supplying spinning solution into the spinning sprayer by the aid of an automatic solution delivery device, enabling the collector to be grounded, applying high-voltage direct current on the spinning sprayer, and generating electric field force between the spinning sprayer and the collector; and controlling the high-voltage direct current on the spinning sprayer, enabling the electric field force between the spinning sprayer and the collector to be larger than surface tension of the spinning solution at the nozzle of the spinning sprayer, and enabling the spinning solution in the spinning sprayer to be sprayed out of the nozzle of the same by jet flow to be coated on the surface of the passing yarn or the passing fiber bundle so that a nano coating is formed, and the yarn with the nano coating formed on the surface is a prepared nano fiber. The method is simple in process steps, good in controllability and capable of producing nano fibers uniform in diameter distribution and excellent in performance with low cost.
Owner:ACADEMY OF ARMORED FORCES ENG PLA +1

Preparation method of continuous filament of asphalt-based carbon fiber

The invention discloses a preparation method of a continuous filament of an asphalt-based carbon fiber, and belongs to the field of carbon fiber production. The preparation method solves the problems that the existing spinning speed is lower, the fiber bundle damage is large, the infusibility efficiency is low, and doubling and embrittlement are easy. The preparation method comprises the specific process steps that a, spinning asphalt is extruded into fines by spinning position fusion, humidified, oiled and bundled to form a protogenic asphalt fiber bundle; b, double roller stranding and tensioning are conducted; c, the asphalt fiber bundle is wound on a spinning roller sleeve; d, an asphalt fiber reel is immersed in an oxidability liquid phase, and a liquid-phase oxidized fiber bundle reel is obtained; e, the reel is immersed in a high-temperature-resistant oil solution; the filament is unreeled and rollers are removed at a low speed; the oxidized fiber bundle continuously enters a continuous infusible furnace and a continuous low-temperature pre-carbonization furnace to form a pre-carbonization fiber bundle reel; and f, drawing heat treatment is conducted through a continuous carbon-fiber high-temperature carbonization furnace and a graphitization furnace, and then the continuous filament of the asphalt-based carbon fiber is obtained.
Owner:SICHUAN CHUANGYUE CARBON MATERIAL

Process for producing polyester industrial yarns by liquid-phase tackified melts in multi-end direct spinning manner

The invention discloses a process for producing polyester industrial yarns by liquid-phase tackified melts in a multi-end direct spinning manner, which belongs to the technical field of polyester industrial yarns and includes the following steps: liquid-phase tackifying; obtaining high-viscosity polyester melts with intrinsic viscosity ranging from 0.90dl / g to 1.10dl / g by tackifying low-viscosity polyester melts in a liquid phase; double-end spinning; directly conveying the polyester melts after being subjected to liquid-phase tackifying to different spinning positions capable of spinning in 16-24 ends; drafting and thermal-forming; winding and forming; and utilization of a twin winding machine to perform high-speed winding of 16-24 spindle spinning cakes. In the process, 16-end direct spinning of high-strength or low-shrinkage polyester industrial yarns with a single end ranging from 800D to 1300D and 24-end direct spinning of low-denier polyester industrial yarns with a single end ranging from 100D to 500D can be realized on the same spinning position, and product production efficiency is high, performance is stable, production energy consumption and equipment investment cost are low.
Owner:ZHEJIANG GUXIANDAO POLYESTER DOPE DYED YARN CO LTD

Semi-continuous high-speed spinning machine

The invention relates to spinning equipment, in particular to a semi-continuous high-speed spinning machine. The semi-continuous high-speed spinning machine comprises a rack, a glue supply device, a strip forming device, a spinning device and a winding device, wherein a spinning roller of the spinning device is horizontally arranged relative to an operating surface of a spinning surface. The operating surface of the spinning surface is a horizontal working surface in a spinning surface area, and the fact that the spinning roller is horizontally arranged relative to the operating surface of the spinning surface refers to that the spinning roller is horizontally installed relative to spinning workers when the spinning workers face towards the winding device. According to the semi-continuous high-speed spinning machine, the spinning roller is horizontally arranged relative to the operating surface of the spinning surface, and two ends of the horizontally arranged spinning roller are fixed, so that the spinning speed can be increased on the basis of the semi-continuous high-speed spinning machine, the spinning roller is ensured to rotate stably without shaking, and the problems of intertwining and breakage of strips caused by shaking of the spinning roller during spinning are solved.
Owner:YIBIN HIEST FIBER +2

Process for producing melt direct-spinning multifunctional PET (Polyester) industrial yarns

The invention discloses a process for producing melt direct-spinning multifunctional PET (Polyester) industrial yarns and belongs to the technical field of preparation of PET industrial yarns. The process is characterized by comprising the following steps of: (1) melt tackification, i.e., tackifying low-viscosity PET melt obtained by condensation polymerization by a melt tackifying reactor to obtain high-viscosity PET melt; (2) mixing of functional melt, i.e., conveying the high-viscosity PET melt to a spinning manifold through a melt pipeline to carry out spinning and mixing the functional melt and the high-viscosity PET melt in the melt pipeline according to a certain ratio; and (3) spinning, i.e., directly conveying the mixed functional high-viscosity PET melt to each spinning positions to carry out spinning; (4) drafting heat setting, i.e., carrying out two-stage drafting one-stage loosening heat setting on functional high-tenacity PET industrial yarns and carrying out two-stage drafting two-stage loosening heat setting on functional low-shrink PET industrial yarns; and (5) winding formation, i.e., carrying out winding formation after carrying out network processing on fibers subjected to drafting heat setting. According to the invention, the aim of producing the multifunctional PET industrial yarns by adopting the melt to carry out direct spinning is fulfilled; and the process has the advantages of low cost, high efficiency, uniformity and stability.
Owner:ZHEJIANG GUXIANDAO POLYESTER DOPE DYED YARN CO LTD

Electrostatic spinning device

ActiveCN103334165APromote stretch refinementIncreased Jet Jet VelocityNew-spun product collectionFilament/thread formingFiberFiltration
The invention relates to the technical field of preparation of polymer electrospun fibers by adopting an electrostatic spinning technique, and provides an electrostatic spinning device which comprises a liquid supply device, a liquid distribution device, a plurality of electrostatic spinning nozzles, a high-voltage power supply, an auxiliary gas generating device, a cylindrical guiding device and a double-net-cylinder collector, wherein the auxiliary gas generating device comprises an air feed pump, an air tube and a vent hood, and the vent hood is communicated with the air feed pump through the air tube, so as to form an auxiliary airflow channel; the plurality of electrostatic spinning nozzles are uniformly distributed in the vent hood; the cylindrical guiding device is arranged below the auxiliary gas generating device; the double-net-cylinder collector is arranged inside the cylindrical guiding device. The electrostatic spinning device introduces auxiliary airflow to promote jetting and stretching of jet flow, and utilizes the squeezing effect of the airflow to guide spinning nanofibers to perform multilayered three-dimensional deposition in the double-net-cylinder collector, so as to realize quick manufacturing of a columnar nano-fiber filter, and promote the application of the electrostatic spinning technique in the field of filtration.
Owner:XIAMEN UNIV

Polyethylene terephthalate and polyurethane composite artificial blood vessel and preparation thereof

The invention discloses a polyethylene terephthalate and polyurethane composite artificial blood vessel and a preparation method thereof, belonging to the field of biomedical engineering. The artificial blood vessel is prepared from polyethylene terephthalate and polyurethane by means of an electrostatic spinning device with a stirrer. The prepared artificial blood vessel is a tubular object witha microporous structure. The polyurethane added in the artificial blood vessel can improve the elasticity of the blood vessel under the condition of not damaging the strength of the polyethylene terephthalate material, increase the compliance of the artificial blood vessel and achieve the requirements of clinical use. The polyethylene terephthalate and polyurethane composite artificial blood vessel has the advantages of high strength, large elasticity and compliance, good biocompatibility, strong anticoagulant property and large cell adhesion, and can meet the requirements of the clinical useof the artificial blood vessels with large diameter and small diameter. The preparation process is simple and practical, and applicable to preparing the artificial blood vessels with various different requirements on mechanical properties.
Owner:宁波贝昂生物材料有限公司
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