Process for forming crepe fabrics and for temporarily stabilizing high twist filament yarn in the manufacture of such fabrics
AssigneeBurlington Industries, Inc.
InventorsDelano M. Conklin, Joe F. London, Jr.
Life of this patent
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Abstract
A process for forming crepe fabrics on a shuttleless loom is provided which includes temporary stabilization of highly twisted (e.g., 40-70 TPI) filament yarn. To this end, hot melt size is applied at a predetermined temperature in predetermined amounts (e.g., add-on of about 10.5-13.5%) immediately after twisting so as to reduce the liveliness of the yarn and to thereby permit it to be woven. After weaving, the yarn stabilization is reversed by a desizing operation. The fabric is subsequently heat treated to develop crepe characteristics.
Claims5
A crepe fabric comprising highly twisted continuous filament yarn woven on a shuttleless loom after having been treated with a hot-melt size, half the yarn having Z-twist and half the yarn having S-twist, said fabric characterized by the appearance, hand and drape of silk and having a selvage consisting of severed weft yarns.
A crepe fabric comprising highly twisted continuous filament yarn woven on a shuttleless loom after having been treated with a hot-melt size, half the yarn having Z-twist and half the yarn having S-twist, said fabric characterized by the appearance, hand and drape of silk and having a tucked selvage.
A crepe fabric produced by the steps of:
- (a) twisting a continuous filament yarn to a level of about 40-70 TPI followed immediately by;
- (b) applying a hot melt size at a temperature of about 290.degree.-300.degree. F. with an add-on of between about 10.5 and 13.5% to said yarn to stabilize the yarn such that the liveliness of the yarn is temporarily reduced;
- (c) backwinding the yarn onto a weft delivery package;
- (d) weaving a fabric from said yarn on a shuttleless loom;
- (e) desizing the woven fabric to restore the original liveliness to the fabric yarns;
- and
- (f) heat treating the fabric to develop crepe characteristics.
A crepe fabric produced by the steps of:
- (a) highly twisting a continuous filament yarn followed immediately by;
- (b) temporarily reducing the liveliness of the yarn by applying a hot melt size at a temperature of about 290.degree.-300.degree. F. with an add-on of between about 10.5 and 13.5%;
- (c) weaving a fabric from said yarn on a shuttleless loom;
- (d) restoring the liveliness of the yarn by desizing the woven fabric;
- and
- (e) gradually raising the temperature of the fabric to about 240.degree. F. to develop the crepe of the fabric;
- (f) dyeing the fabric;
- and
- (g) framing the fabric.
Dependencies are inferred from the claim text.