The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 1976
Filed:
Nov. 27, 1974
Toyo Boseki KK, Osaka, JA;
Abstract
A method for manufacturing a textured yarn from an artificial multi-filament yarn consisting of a plurality of continuous mono-filaments, by folding up the mono-filaments in multiple layers and entwining them by genuine twists to form a textured yarn which has the appearance, touch and texture resembling a spun yarn. The process is made up of the steps of spreading into individual filaments a continuous multi-filament yarn of artificial fiber, passing part or all of the spread-out filaments onto the periphery of a rapidly-rotating spindle of a conical or cylindrical shape, assembling the filaments around the spindle in the form of a sleeve constituted by thin filament layers, and continuously withdrawing the sleeve from the spindle at a speed which is lower than the feed speed of the multi-filament yarn, the sleeve being withdrawn either in a straight forward direction along the spindle axis or in a backward direction through an axially-extending passage in the spindle after being everted at the nose thereof. Alternatively, an additional yarn may be introduced as a core thread into the sleeve while it is being withdrawn from the spindle, which also results in a core yarn which has the appearance, handling and texture resembling a spun yarn.