http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3808094-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1344c5c0f7a3b561aa76dfefb893f85f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21F11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21F1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21F11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21F9-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21F11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21F1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21F9-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21F11-00 |
| filingDate | 1971-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1974-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dbdc1c45095c15ad1fff932f70d02281 |
| publicationDate | 1974-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3808094-A |
| titleOfInvention | Wet-formed nonwoven textile fabrics and methods and apparatus for making the same |
| abstract | A FORAMINOUS, WET-FORMED NONWOVEN TEXTILE FABRIC HAVING A UNITARY STRUCTURE, BALANCED CONSTRUCTION, PREDETERMINED DESIRED PROPERTIES IN THE LONG AND CROSS DIRECTIONS, UNIFORMITY, AND GOOD OPACITY AND COVERING POWER COMPRISING UNCARDED, RELATIVELY STRAIGHT, SMOOTH-SURFACED, SYNTHETIC TEXTILE FIBERS HAVING AN AVERAGE LENGTH OF FROM ABOUT 3/8 INCH TO ABOUT 1 1/2 INCHES OR MORE, THE NONWOVEN TEXTILE FABRIC HAVING TWO MAJOR AXES OF PREDOMINANT FIBER ORIENTATION DIRECTED AT ANGLES TO EACH OTHER AND MIRROR-IMAGED WITH RESPECT TO THE LONG DIRECTION OF THE NONWOVEN TEXTILE FABRIC, A PREPONDERANCE OF THE FIBERS BEING ARRANGED IN GENERALLY ORIENTED IN THE DIRCECTION OF ONE OF WHICH ARE GENERALY ORIENTED IN THE DIRECTION OF ONE OF THE TWO MAJOR AXES OF PREDOMINANT FIBER ORIENTATION, WITH THE BUNDLES HAVING DIAMETERS OF FROM ABOUT 0.04 MM. TO ABOUT 0.6 TO 1 MM. AND EXTENDING ANGULARLY GENERaLLY FROM ONE SIDE OF THE NONWOVEN TEXTILE FABRIC TO THE OTHER SIDE THEREOF AND CONTAINING FROM ABOUT 3 TO ABOUT 200 OR MORE FIBERS IN EACH BUNDLE AND BEING SPACED APART A DISTANCE OF FROM ABOUT 0.2 MM. TO ABOUT 1.5 MM., ON AN APPROXIMATE CENTER-TO-CENTER BASIS. ANOTHER FEATURE IS THE PRESENCE IN THE FIIBROUS STRUCTURE OF A VERY LARGE NUMBER OF RANDOMLY-ARRANGED PORES OR OPENINGS WHICH, HOWEVER, ARE SO EXTREMELY SMALL IN DIAMETER THAT THERE IS VERY LITTLE OPEN SURFACE AREA, THAT IS, FABRIC AREAS OF ZERO OF VERY LOW FIBER DENSITY. AS A RESULT, THE FIBROUS STRUCURE HAS EXCELLENT OPACITY AND COVERING OWER. ALSO INCLUDED ARE METHODS AND APPARATUS FOR MAKING SUCH WET-FORMED NONWOVEN FABRICS COMPRISING: FORMING AN AQUEOUS SLURRY WHICH COMPRISES SYNTHETIC FIBERS HAVING AN AVERAGE LENGTH OF FROM ABOUT 3/8 INCH TO ABOUT 1 1/2 INCHES OR MORE; CAUSING THE AQUEOUS SLURRY OF FIBERS TO FLOW AT A PREDETERMINED VELOCITY IN A THIN, FLAT, SHEET-LIKE, PLANAR CONFIGURATION; ANGULARLY DISCHARGING THE AQUEOUS SLURRY OF FIBERSUPON A MOVING FORMING SURFACE HAVING A PREDETERMINED VELOCITY, AND FORMING A LOOSELY-ASSEMBLED FIRBOUS STRUCTURE THEREON WHEREIN THE INDIVIDUAL FIBERS HAVE A PREDOMINANT ORIENTATION DIRECTED ANGULARLY WITH RESPECT TO THE DIRECTION OF MOVEMENT OF THE FORMING SURFACE, THE ANGULAR DIIRECTION OF PREDOMINANT FIBER ORIENTATION BEING AFFECTED BY THE VELOCITY OF THE AQUEOUS SLURRY, THE ANGLE OF DISCHARGE OF THE AQUEOUS SLURRY ON THE MOVING FORMING SURFACE, AND THE VELOCITY OF TH MOVING FORMING SURFACE; AND THEN SUBSEQUENTLY ANGULARLY DISCHARGING A SECOND AQUEOUS SLURRY OF FIBERS ALSO HAVING A THIN, FLAT, SHEETLIKE, PLANAR CONFIGURATION AND A PREDETERMINED VELOCITY UPON THE LOOSELY-ASSEMBLED FIBROUS STRUCTURE, THE SECOND ANGLE OF DISCHARGE BEING EQUAL TO BUT OPPOSITELY DIRECTED IN MIRRORIMAGE FASHION TO THE FIRST ANGLE OF DISCHARGE WITH RESPECT TO THE LONG DIRECTION OF THE FORMING SURFACE, WITH THE SECOND SLURRY VELOCITY AND SECOND FORMING SURFACE VELOCITY BEING SUBSTANTIALLY EQUAL TO THE FIRST SLURRY VELOCITY AND THE FIRST FORMING SURFACE VELOCITY, RESPECTIVELY, WHEREBY THE SECOND AQUEOUS FIBER SLURRY FORMS A SECONDED LOOSELYASSEMBLED FIBROUS STRUCTURE WHEREIN THE FIBERS HAVE A PREDOMINANT ORIENTATION WHICH IS OPPOSITELY-DIRECTED AND IN MIRROR-IMAGE RELATIONSHIP TO THE FIRST PREDOMINANT FIBERS ORIENTATION WITH RESPECT TO THE LONG DIRECTION OF THE FORMING SURFACE, THE FIBERS OF THE SECOND LOOSELY--ASSEMBLED FIBROUS STRUCTURE INTERMINGLING AND INTERENTANGLING WITH THE FIBERS OF THE FIRST LOOSELY-ASSEMBLED FIBROUS STRUCTURE WHEREBY THERE IS MADE A WET-FORMED NONWOVEN TEXTILE FABRIC HAVING A UNITARY STRUCTURE, BALANCED CONSTRUCTION, PREDETERMINED DESIRED PROPERTIES IN THE LONG AND CROSS DIRECTIONS, UNIFORMITY, AND GOOD OPACITY AND COVERING POWDER. D R A W I N G |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007081926-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4904520-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8475721-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4049491-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11602464-B2 |
| priorityDate | 1971-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.