Method of hot melt seaming of fabric materials using a high frequency electric field
Abstract
Abstract THE CONTINUOUS, RAPID FORMING OF A HOT MELT BONDED SEAM IN ARTICLES OF FABRIC MATERIAL BY FIRST CONSTRUCTING A MULTI-PLY ASSEMBLAGE OF FABRIC MATERIAL WITH A THERMOPLASTIC FILAMENT BETWEEN THE PLIES AND PASSING THE MULTIPLY ASSEMBLY THROUGH A HIGH FREQUENCY ELECTRICAL FIELD THAT WILL INSTANTLY MELT SELECTIVELY THE FILAMENT WHILE THE MULTI-PLY ASSEMBLAGE IS COMPRESSED SO AS TO CAUSE THE MELTED FILAMENT TO PENETRATE EVENLY THE FABRIC PLIES; AND THE SEAM BONDED ARTICLES PRODUCED BY THIS PROCESS. AN APPARATUS THAT CONTINUOUSLY AND RAPIDLY PRODUCES HOT MELT SEAM BONDING OF PILES OF FABRIC MATERIAL HAVING FABRIC MATERIAL, THE POSITIONING OF A THERMOPLASTIC FILAMENT ALONG A LINE OF DESIRED SEAM BONDING IN THE ASSEMBLAGE, AND MEANS FOR PASSING THE MULTI-PLY ASSEMBLAGE THROUGH A HIGH FREQUENCY ELECTRICAL FIELD THAT IS ATTUNED TO MELT SELECTIVELY THE FILAMENT WHILE PRESSURE IS APPLIED TO COMPRESS THE MULTI-PLY ASSEMBLAGE.
Inventors
- 👤 Iven G Nichols
Bibliographic Details
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| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
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