Method of Spinning of Yarn by Means of a Pressurized Fluid and a Spinning Device - Specification

Sep 21, 2026

Uploaded by Aria

A patent specification describing a method and device for spinning yarn using a pressurized fluid and a spinneret. The process extrudes a fiber-forming liquid into a pressure chamber, then ejects the formed filaments together with the pressurized fluid through a cylindrical, vertically movable tubular nozzle. The nozzle is equipped with a funnel-shaped yarn receiver with a specified aperture angle range to enable easier control and stabilization, while addressing drawbacks of earlier pressure-chamber and ejector-based spinning techniques.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages22

Reading Time55 min

AccessFree to download

1. Title of Invention

2. Claims

3. Detailed Description of Invention

Prior art and problems

Principle of the present invention

Yamane,S.;Nakanishi,T.;Shiogawa,H. Method of spinning of yarn by means of a pres-surized fluid and a spinning device.9 p. Patent(Japanese)no.56-13806(4.81).Filed: TRANSLATION NO.4458 T RAN SL A T I0 N PATENT BUREAU OF JAPAN OFFICIL GAZETTE FOR EXAMINED PATENTS Japanese Patent Publication(Kohoku)No.56-13806 Publication date:March 31,1981 Nunber of Inventions:2 International ClassIntrabureau No. D01 D 5/08 7211-4L D01 D 7/00 7211-4L METHOD OF SPINNING OF YARN BY MEANS OF A PRESSURIZED FLUID AND ASPINNING DEVICE Appiication No:51-14379 Application Date:December 1,1976 Public Disclosure No:53-70114 Disclosure Date:June之2,1973 Inventors:S.Yamane,T.Nakanishi,H.Shiogawa Applicant:Toray Industries Inc.,Tokyo,Japan Referenices Cited by the Examiner: Patent Publication(Kohoku)No.47-31362(JP,B1) Patent Publication(Kohoku)No.48-23981 (JP,B1) SPECIFICATION # 1.Title of Invention Method of Spinning of Yarn by Means of a Pressurized Fluidand a Spinning Device 2.Claims 1.A method of spinning yarn by means of a pressurized fluid cha:acterized by the fact that when the fibers are forn:ed byextruding a fiber-forming liquid throuyh a spinneret into apressure chaiber and ejecting it along with tie pressurized fluidthrough a nozzle located at the end of the chamber opposite tothe spinneret,the spinning is carried out through a cylindricaltubular nozzle which is movable within the pressure chamber andis provided on its upper end with a funnel-snaped yarn receiverhaviny an aperture angle within a range of 90°to 180. 2.A device for spinning yarn by means of a pressurizedfluid,the device comprising:a pressure chamber which can beriidly ana hermetically attached to a spinneret for creating apressurized atmosphere at the orifices of the spinneret,openingsfor guiding a pressurized fluid into the pressure chamber,and acylindrical tubular nozzle for ejecting the fiber-formingsubstance along with the pressurized fluid, said nozzle beingprovided at its top end with a funnel-shaped yarn receiverhaving an aperture angle within a range of 90°to 18°,saianozzle being removably attached to the pressure chamber andmovable ina verticaldirection so that its vertical positionwith reyara to the spinneret can be adjusted. 3.Detailed Description of Invention The present invention relates to a method of spinaing yarnby means of a pressurized fluid and to a spinning device. Moreparticularly,the present invention relates to a method ofspinning yarn and to a spinning aevice according to which afiber-forming substance along with the pressurized fluid areejected at high speed through a nozzle under conditions whichallow easy control and stabilization of the process. The authors of the present invention have developed a aethodof spinning which was disclosed in Japanese Patent Publication(Kohoku)No.47-31362 and according to which a spinneret ismaintained in an elevated pressure atmosphere and the fiber-forming substance is ejected along with the fluid at high speedthrough a nozzle located at the side of the device opposite tothe spinneret. Compared to spinning processes known before, e.g.,the drawing of yarn between rotating rollers,the methoddescribed in the invention mentioned above is advantageous inthat it is more simple and speedy since it allows the obtainingof fibers by mere drawing without the use of subsequenttechnological steps. Moreover,comparea to a spinning methoausiny a suction force through a so-called "ejector",this methodaoes not depend on external factors and is characterizea byincreased speed. Nevertheless,the previous invention required that thespinneret be maintained under an increased pressure and dictatealarger overall dimensions of the device as compared to theejector method. Especially when the type of proauct had to bechanged,the process required either the use of a number ofpressure chambers or frequent disassembling and reassembling ofthe device. Digitized by the Internet A

FAQs

What is the core principle of the described spinning method?

A fiber-forming liquid is extruded through a spinneret into a pressure chamber, and the formed filaments are ejected with the pressurized fluid through a movable cylindrical tubular nozzle.

How does the device support the spinning process?

It uses a pressure chamber attached to the spinneret to create a pressurized atmosphere, guiding openings for the pressurized fluid, and a removable cylindrical tubular nozzle with a funnel-shaped yarn receiver.

What disadvantages of earlier spinning approaches does the invention aim to address?

It targets complexity and operational inefficiency of conventional pressure-chamber setups, and also improves stabilization issues seen in prior methods that relied on porous structures for guiding fluid.

Sep 21, 2026

Uploaded by Aria