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7615173 |
Process for preparing bicomponent fibers having latent crimp
The present invention is directed to a process for preparing bicomponent fibers by melt spinning two semi-crystalline polymers differing in crystallization rate.
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7585442 |
Process for making cellulose acetate tow
A process for making a cigarette tow comprising: spinning a dope; taking-up the as-spun cellulose acetate filaments; lubricating the filaments; forming a tow from the filaments; crimping the tow...
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7585441 |
Process of making cellulose acetate tow
In the manufacture of a fiber tow, particularly cellulose acetate tow, the tow is plasticized prior to entry into the crimper. The preferred plasticizer is water.
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7578957 |
Process of making staple fibers
Improved staple fibers and processes for producing them are provided. The processes are particularly useful for forming staple fibers from poly(trimethylene terephthalate), especially carpet staple...
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7534380 |
Cellulose acetate tow and method of making same
In the manufacture of a fiber tow, particularly cellulose acetate tow, a stuffer box crimper has a steam injector in communication with the stuffer channel of the crimper. The steam injector...
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7534379 |
Process of making cellulose acetate tow
In the manufacture of a fiber tow, particularly cellulose acetate tow, a stuffer box crimper has a pair of tow edge lubricators adapted to lubricate the lateral edges of the tow immediately prior...
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7445737 |
Cellulose acetate tow and method of making same
In the manufacture of a fiber tow, particularly cellulose acetate tow, a stuffer box crimper has one roller adapted to induce crimp into the tow. This roller induces crimp by preferentially...
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7425289 |
Process of making cellulose acetate tow
In the manufacture of a fiber tow, particularly cellulose acetate tow, a stuffer box crimper has a pair of nip rollers, at least one, made of a solid ceramic material.
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7291239 |
High loft low density nonwoven webs of crimped filaments and methods of making same
High loft, low density nonwoven webs are produced by forming substantially continuous, spunbond, crimped, bicomponent fibers of A/B bilateral morphology in an unheated fiber draw unit. The fibers...
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7036197 |
Stretchable multiple-component nonwoven fabrics and methods for preparing
A method for preparing stretchable bonded nonwoven fabrics which involves forming a substantially nonbonded nonwoven web of multiple-component continuous filaments or staple fibers which are...
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7029611 |
Process of making poly(trimethylene terephthalate) bulked continuous filament carpet yarn
This invention relates to a poly(trimethylene terephthalate) BCF carpet yarn having a Y-shaped cross-section that has an modification ratio and a arm angle within a specific range, and a method for...
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7025914 |
Multilayer approach to producing homofilament crimp spunbond
A multilayer laminate is produced with in-line fabric deposition. One layer of the multilayer laminate has stable, heat-set, helically crimped fibers which are uncompacted and therefore retain...
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6984276 |
Method for preparing high bulk composite sheets
This invention relates to a method for preparing nonwoven fabrics having an improved balance of properties in the machine and cross-directions. More specifically, the invention utilizes nonwoven...
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6967057 |
Poly(trimethylene dicarboxylate) fibers, their manufacture and use
A process for preparing poly(trimethylene terephthalate) fibers including (a) providing a poly(trimethylene terephthalate) composition comprising about 0.05 to about 10 weight % ionomer and (b)...
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6923925 |
Process of making poly (trimethylene dicarboxylate) fibers
A process for preparing poly(trimethylene dicarboxylate) multifilament yarns and monofilaments. One process for preparing poly(trimethylene dicarboxylate) multifilament yarns includes (a) providing...
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6896843 |
Method of making a web which is extensible in at least one direction
A method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R 1 and the second component has a recovery percentage R 2 ,...
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6890466 |
Elastically stretchable nonwoven fabric and process for making the same
An elastically stretchable nonwoven fabric including thermoplastic elastomer filaments; the filaments being heat-sealed and/or mechanically intertwined together to form the nonwoven fabric that has...
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6887423 |
Process for making a stretchable nonwoven web
A process for preparing nonwoven webs including multiple component continuous filaments having high levels of three-dimensional helical crimp utilizing draw rolls to provide a high degree of...
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6881375 |
Method of forming a 3-dimensional fiber into a web
A method includes the steps of co-extruding a first component and a second component. The first component has a recovery percentage R 1 and the second component has a recovery percentage R 2 ,...
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6872352 |
Process of making web or fiberfill from polytrimethylene terephthalate staple fibers
The invention relates to webs or batts including polytrimethylene terephthalate crimped staple fibers and fiberfill products comprising such webs and batts, as well as the processes of making the...
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6861480 |
Yarn-forming composition of polyamide and sulfonated acid dye disabler
An acid dye stain-resistant fiber-forming polyamide composition comprising a fiber-forming polyamide and a reagent, at least a portion of which associates with free acid dye sites in the polyamide,...
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6835339 |
Process for preparing poly(trimethylene terephthalate) tetrachannel cross-section staple fiber
Poly(trimethylene terephthalate) tetrachannel cross-section staple fibers, as well as yarns, fiberfill webs, batts and products, and fabrics made therewith. Also, the process of making such staple...
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6830640 |
Dual capillary spinneret for production of homofilament crimp fibers
Robust homofilament fibers are meltspun from a differently shaped dual capillary spinneret design to induce differential fiber morphology to produce crimping. Crimping may further be aided by...
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6780357 |
Splittable multicomponent polyester fibers
Mechanically divisible multicomponent fibers have at least a component including poly(lactic acid) polymer and at least a second component including at aromatic polyester. The multicomponent fibers...
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6753385 |
Fiber-forming polyamide and sulfonated acid for disabling acid dye sites
An acid dye stain-resistant fiber-forming polyamide composition comprising a fiber-forming polyamide and a reagent, at least a portion of which associates with free acid dye sites in the polyamide,...
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6752945 |
Process for making poly(trimethylene terephthalate) staple fibers
A process of making polytrimethylene terephthalate staple fibers, including (a) providing polytrimethylene terephthalate, (b) melt spinning the melted polytrimethylene terephthalate at a...
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6709996 |
Crimped multicomponent filaments and spunbond webs made therefrom
Spunbond multicomponent filaments and nonwoven webs made from the filaments are disclosed. In accordance with the present invention, the multicomponent filaments contain a crimp enhancement...
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6682672 |
Process for making polymeric fiber
Spinnerette including a plate including a plurality of capillaries which have capillary ends with dividers which divide each capillary end into a plurality of openings, and a process of making...
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6680018 |
Melt extrusion spinning polyamide fibers with sulfonated reagent and thermoplastic carrier
A method of producing a stain-resistant and soil-resistant polyamide yarn comprises the steps of (a) melt compounding a sulfonated aromatic acid with a thermoplastic polyester or polyamide carrier...
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6673437 |
Luminescent coating compound
A luminescent coating compound of organic binder and luminescent fibers containing at least one organic binder and fibers which of a fiber-forming material with at least one luminescent dye or...
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6635199 |
Process for producing a precursor fiber bundle and a carbon fiber bundle
A separable tow of elongated polymeric filaments comprises a plurality of distinct sub-tows lightly and individually and separably joined, as by light crimping together along their edges or, if...
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6632386 |
In-line heat treatment of homofilament crimp fibers
Stable, heat-set, helically crimped fibers are economically produced with in-line fabric deposition and heat setting and are uncompacted to retain their loft.
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6632313 |
Centralized process for the manufacture of a spunbonded fabric of thermobonded curled bicomponent fibers
A process is disclosed for the manufacture of a spunbonded fabric consisting of thermobonded curled bicomponent fibers where the bicomponent fibers consist of two plastic materials with different...
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6627129 |
Process of making high RV polyamide filaments
The present invention relates to industrial high relative viscosity (RV) filaments, such as, for use in papermaking machine felts and other staple fiber applications. The invention is further...
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6537473 |
Process of making polyolefin fibers
Polyolefin fibers and polyolefin yarns of high strength and elongation and textile fabrics produced therefrom, which consist of modified propylene polymers, unmodified propylene polymers and...
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6518208 |
Continuous fiber nonwoven and the method for producing it
A continuous fiber nonwoven comprising composite continuous fibers having the spiral crimps obtained by compositely spinning two thermoplastic resins having the difference in the melting points of...
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6454989 |
Process of making a crimped multicomponent fiber web
The present invention provides continuously crimped propylene polymer nonwoven fabrics as well as processes for forming crimped multicomponent propylene polymer fibers by melt-attenuating extruded...
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6332993 |
Process of making heat-retaining fibers
A method for making heat-retaining fiber and fabrics. According to the present invention, the white conductive particles and the white particles with good radiating efficiency of far-infrared...
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6312545 |
Method for producing a spunbonded fabric from thermobonded crimped bicomponent fibers
A process is disclosed for the manufacture of a spunbonded fabric consisting of thermobonded curled bicomponent fibers where the bicomponent fibers consist of two plastic materials with different...
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6210622 |
Process of making polymeric fibers
A for the production of polymeric fibers in the form of a tow includes drawing and heat setting, with and without crimping, in which the tow has a constant denier per inch during the processing....
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6177191 |
Internally lubricated fiber, cardable hydrophobic staple fibers therefrom, and methods of making and using the same
Hydrophobic polyolefin fibers are provided with an internal hydrophobic polysiloxane of the formula ##STR1## in which X, Y, R 1 , and R 2 , which may be the same or different, or substituted or...
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6136436 |
Soft silky large denier bicomponent synthetic filament
A method for producing a yarn for constructing non-carpet textile articles which comprises producing a large denier synthetic carpet face yarn by a bulked continuous filament or bulked crimped...
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6123886 |
Method and apparatus for producing crimped thermoplastics
A method for producing a substantial helical crimp in a continuous filament of thermoplastic material by generating a turbulence in the thermoplastic material while the material is in its glass...
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6109015 |
Process for making poly(trimethylene terephthalate) yarn
In a method of producing poly(trimethylene terephthalate) yarn from PTT chip which has been extruded through a spinneret into filaments and coated, the coated filaments are passed between an...
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6080257 |
Multi-fold mat structure
A protective cover for application to multi-surface or multi-faceted structures or objects, such as posts, piers, stairs, which have two or more parallel edges or corners. The protective cover...
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6067480 |
Method and apparatus for in-situ formation of three-dimensional solid objects by extrusion of polymeric materials
An apparatus for thermal extrusion of a polymeric material to manufacture prototype mechanical elements from said polymeric material, said apparatus used for deposition of a liquefied ribbon of...
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6054002 |
Method of making a seamless tubular band
Side-by-side conjugate filaments made from thermoplastic elastomers and spunbond-type polyolefins exhibit an extremely high propensity to self-crimp. At appropriate polymer ratios and processing...
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5993714 |
Method of making low density microfiber nonwoven fabric
The present invention provides a lofty nonwoven web containing pneumatically drawn filaments, wherein the web has a density from about 0.01 g/cc to about 0.075 g/cc and the microfilaments have a...
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5965084 |
Process for producing non-woven fabrics of ultrafine polyolefin fibers
A process for producing a non-woven fabric of ultrafine polyolefin fibers by subjecting a web of splittable conjugate polyolefin fibers to a water needle processing, and non-woven fabric thus...
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5853635 |
Method of making heteroconstituent and layered nonwoven materials
The present invention is directed to a method of forming a heteroconstituent nonwoven web including a mixture of different filament types simultaneously formed into the same web. The filament types...
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