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Class 57/310 - With stretching


Subclass of Class 57 - Textiles: spinning, twisting, and twining
Definition: Subject matter wherein the strand being twisted is stretched
No. of patents: 66
Last issue date: 04/19/2011


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NumberTitleIssue Date
7926254Electrically conductive elastic composite yarn, methods for making the same, and articles incorporating the same
An electrically conductive elastic composite yarn comprises an elastic member that is surrounded by at least one conductive covering filament(s). The elastic member has a predetermined relaxed unit length L and a predetermined drafted length of (N×L), where N is a ...
04/19/2011
7282638Protection profile for subsea cables
An elongated object for use in subsea having a heating pipe and an electrical cable fixed to the surface of the heating pipe. The electrical cable has a protective sleeving for surrounding the electrical cable, composed of a series of elongated synthetic plastics co...
10/16/2007
7081298Specific gravity-adjustable yarns with low elongation rate and excellent abrasion resistance
This invention is to provide yarns including fishing lines which contain ultra-high molecular weight polyethylene filaments with low elongation rate, adjustable specific gravity and excellent abrasion resistance, and to provide a method for manufacturing the same.
07/25/2006
6740276Process for preparing pigmented shaped articles comprising poly (trimethylene terephthalate)
A process of making a pigmented shaped article comprising: (a) providing polytrimethylene terephthalate chips and two or more colored pigmented chips each containing at least one different color pigment; (b) heating the polytrimethylene terephthalate chips and color...
05/25/2004
6524501Pitch fiber bundle and pitch type carbon fiber bundle and method for production thereof
This invention provides a pitch fiber bundle for carbon fibers of small size, a carbon fiber bundle, and a method for the production thereof, i.e. a method for the production of carbon fibers of a small size, a pitch fiber bundle, and a carbon fiber bundl...
02/25/2003
6238605Low-fibrillation moulded bodies
The invention relates to a process for the production of a low-fibrillation moulded body containing polytetrafluorethylene. The process is characterised in that a pre-moulded body of polytetrafluorethylene is twisted and then pressed flat. The pre-moulded...
05/29/2001
5985192Process for the manufacture of spiralled bristles
The invention relates to a method for the manufacture of screwlike bristles by extruding monofilaments. In order to provide a method with which screwlike bristles can be inexpensively manufactured in the same way as conventional bristles with an identical...
11/16/1999
5901632Rope construction
A method for forming a braided rope. Twisted yarns are first braided together to form braided strands, and the braided strands are then braided together to form the rope. The diameter of the individual twisted yarns is kept to a minimum, thereby reducing ...
05/11/1999
5827464Making high filament count fine filament polyester yarns
A direct melt spinning process for providing high filament count fine filament polyester yarns having excellent mechanical quality and along-end uniformity and unitary interlace by spinning all the filaments of such high filament count yarn from a single ...
10/27/1998
5817417Method for continuous production of polyester weft yarn for tire cord fabric and weft yarn made by same
The method for continuous production of a multifilament stretchable weft yarn for tire cord fabric includes swirling polyester-POY-filaments with an initial titre of from 170 to 260 dtex by means of a gas having a pressure of from 0.5 to 3 bar in a swirli...
10/06/1998
5775084Recyclable string
Recyclable string and methods and apparatus for making the same are disclosed. The recyclable string is made by the disclosed apparatus from a strip of recyclable stretch film by twisting the stretch film about its longitudinal axis and stretching the twi...
07/07/1998
5758483Twisting apparatus
Apparatus for twisting a travelling strand includes a rotary structure rotatable about a rotational axis X--X and a series of pulleys mounted on the structure in an array disposed about the rotational axis X--X with each pulley in the series mounted on th...
06/02/1998
5749214Braided or twisted line
Braided or twisted lines made from gel spun polyolefin yarns are stretched to increase line tenacity. If desired, stretching conditions can also be chosen to significantly reduce the denier of the line....
05/12/1998
5487860Continuous process for spinning and drawing polyamide and apparatus thereof
A continuous process for spinning and drawing polyamide filaments with the steps of melting a polyamide and spinning the filaments from the molten polyamide through a spinnerette, quenching the filaments, applying a yarn finish to the filaments, applying ...
01/30/1996
5487859Process of making fine polyester hollow filaments
A post-coalescence melt-spinning process for preparing fine undrawn hollow polyester filaments having excellent mechanical quality and uniformity at high speeds (2-5 km/min) involving selection of polymer viscosity and spinning conditions, whereby the voi...
01/30/1996
5477669Process for stretching staple fibers and staple fibers produced thereby
A process for stretching natural staple fibers to reduce the diameter includes the steps of treating a substantially untwisted traveling assembly of natural fibers to plasticize the natural fibers, twisting the traveling assembly sufficiently to substanti...
12/26/1995
5439626Process for making hollow nylon filaments
A melt spinning process and the nylon hollow filaments and yarns made by such process which includes extruding molten nylon polymer having a relative viscosity (RV) of at least about 50 and a melting point (TM) of about 210° C. to about 310° ...
08/08/1995
5417902Process of making polyester mixed yarns with fine filaments
Polyester mixed fine filament yarns having excellent mechanical quality and uniformity, and preferably with a balance of good dyeability and shrinkage, are prepared by a simplified direct spin-orientation process by selection of polymer and spinning condi...
05/23/1995
5407621Process for preparing polyester fine filaments
Polyester fine filaments having excellent mechanical quality and uniformity, and preferably with a balance of good dyeability and shrinkage, are prepared by a simplified direct spin-orientation process by selection of polymer viscosity and spinning condit...
04/18/1995
5384082Process of making spin-oriented polyester filaments
Polyester filaments of high shrinkage and high shrinkage tension may be prepared by heat treatment of undrawn crystalline filaments of low shrinkage and shrinkage tension, and may be used for making polyester yarns of mixed shrinkage and bulky polyester y...
01/24/1995
5365729Apparatus for stretching stable fibers
An apparatus for stretching natural staple fibers to reduce their diameter includes a plurality of rotatable arrays of driven pulleys which are mounted for rotation between two twist blocking nips. The rotatable arrays are rotatable on a longitudinal axis...
11/22/1994
5356582Continuous hollow filament, yarns, and tows
Hollow polyester undrawn filaments having excellent mechanical quality and uniformity are prepared by a simplified post-coalescence melt spinning process at speeds of e.g. 2-5 km/min by selection of polymer and spinning conditions whereby the void content...
10/18/1994
5091130Process for the production of highly filled yarns
A highly filled yarn is formed by melt spinning a thermoplastic fibre-forming polymer containing at least 25% by weight of a particulate filler through a spinneret to form a continuous multi-filament yarn. The filaments are drawn away from the spinneret a...
02/25/1992
5083419Method of producing a yarn and an apparatus for carrying out this method
In a method and apparatus for producing a yarn, a synthetic pre-oriented multifilament yarn is fed at a first velocity to a non-heated pin having a diameter less than 10 mm. After turning the yarn around the pin for an angle between 270° and 360°, the y...
01/28/1992
5077126Process for making cotton blend warp yarns for durable fabrics
Staple yarns of cotton and high modulus fiber are wet and then dried under tension to provide warp yarn for durable, abrasion resistant fabrics....
12/31/1991
5034174Texturing yarns
Modifying a polyester with special chain-brancher residues in carefully controlled amounts to provide a draw-texturing feed yarn that can be draw-textured at a speed of 1,000 mpm without excessive filament breaks, and with other advantages in the resultin...
07/23/1991
5006294Process for making composites of stretch broken aligned fibers
A stretch broken fiber reinforced resin tow is formed from resin reinforced with continuous filaments by tensioning the two while heating it to a temperature sufficient to soften the resin in the tensioning zone to break all of the filaments in a random m...
04/09/1991
4966740Texturing polyester yarns
Modifying a polyester with tetraethyl silicate or like oxysilicon chain-brancher to provide a draw-texturing feed yarn that can be draw-textured at a speed of at least 500 mpm without excessive filament breaks, and with other advantages in the resulting t...
10/30/1990
4961307Textile processing employing a stretching technique
This invention provides methods by which any staple fiber or continuous filament fiber can be stretch processed similiar to continuous filament fiber stretch processing methods heretofore used, in that the fiber's internal molecular structure is oriented ...
10/09/1990
4944821Adhesive treatment for nylon cords
Nylon cords having a yarn strength of not less than 12 g/d are subjected to a stretch heating treatment under specified conditions before the dipping and then dipped in a dipping solution having a particular composition, whereby the strength and adhesion ...
07/31/1990
4763468Process for manufacturing a high strength cord from optimally drawn yarn
The present invention reveals a process for manufacturing a high strength woven fabric that is particularly suitable for use as a tire reinforcement which comprises: (a) drawing a polymeric yarn to a draw ratio that is 70% to 99% of the draw ratio that wo...
08/16/1988
4615167Highly entangled thread development
A method and apparatus for forming a yarn or sewing thread from core and effect yarns. The effect yarn is drawn at no higher than a normal drawing ratio for material from which the effect yarn is made and the effect yarn is softened by sufficient heating,...
10/07/1986
4610060Drafting system for yarns
Drafting system for textile yarns and including a driven feed roll, a driven output roll, a low friction freely rotatable heated roll located between the driven feed roll and the driven output roll and operating at essentially the same surface speed as th...
09/09/1986
4568415Method of producing strings for ball rackets, particularly for tennis rackets, and a string produced by this method
In the method for manufacturing strings, a plurality of narrow strip layers (22) of synthetic material are successively and coaxially helically wound on the cylindrical surface of a continuous core. The winding (3) thus produced is conveyed hot to a weldi...
02/04/1986
4562694Device for attachment to drawtwister machines to produce multifilament yarns with S or Z twist effect
The present invention relates to the manufacture of textile multifilament yarns and, in particular, to a device for twisting multifilament yarns in conventional drawtwister machines. The device includes a pair of twisting rollers mounted to rotate freely ...
01/07/1986
4543697Low friction drafting system for yarns
Low friction drafting system for yarn and having in sequence a driven feed roll, a low friction freely rotatable hot roll for preheating the yarn, a low friction freely rotatable hot roll for thermally stabilizing the yarn, a driven output roll, with tens...
10/01/1985
4488397Device for stretching, condensing and transporting a rove of fibers during a spinning operation
A device for stretching a rove of fibers during a spinning operation to permit forming the rove into spun yarn, the device comprising a condenser element placed after the actual stretching system. According to the invention, the condensing element is in the fo...
12/18/1984
4484435Method and device for the production of textile fibre yarns
A method is disclosed in which a silver (2) of textile fibers is drawn in a drawing mechanism (3), strengthened in a wrapping unit (4) by wrapping with a fine filament yarn into a roving (5) and the latter is drawn in the drawing mechanism (11, 12) of a s...
11/27/1984
4481996Fatigue resistant cables
In order to improve the fatigue resistance of a cable, particularly a rubber adherable cable for reinforcing rubber articles such as vehicle tires, substantially uniformly distributed residual compressive stress is induced in substantially the complete pe...
11/13/1984
4408376Apparatus for drawing yarn
A plurality of yarns are drawn from supply sources onto feed rolls and over a set of draw rolls in adjacent relationship. The yarns are urged into a desired contiguous relationship on the draw rolls by a concave guide surface in the course of passing from...
10/11/1983
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