KR860002599A - Flat yarn manufacturing method - Google Patents

Abstract

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Description

Flat yarn manufacturing method

As this is a public information case, the full text was not included.

The process flow diagram of an embodiment according to the invention.

Claims (23)

Polyesters, in particular polyethylene teles, which are filament drawn in a continuous draw by means of a draw roll (Godette) device, which are drawn into the yarns and are drawn with crazy drawing forces by looping a static braking surface which is curved in four directions, advancing fluid friction A method for producing a flat yarn of phthalate or polyamide, wherein a filament advancing from a spinning zone is joined into a parallel filament bundle and is guided through a fluid band in which a measurement amount is applied to the surface and the measurement quantity is supplied to the fluid. Extends in the forward yarn direction, and the amount of fluid supplied per unit time is more than 20%, preferably 25 to 35%, of the advanced amount of yarn per unit time, and the ability of the filament bundle to absorb liquid inside The filament bundle is soaked and exceeded so that the outer surface of the filament bundle is covered with liquid; The filament bundle is guided at a speed of more than 1000 m / min on the curved surface of the bent several times in the alternating direction of the curved path in the wet state and drawn out by a stretching roll (Godette) at a speed higher than 3,500 m / min, The total length and the dead velocity of the hibernating surface are mutually adjusted so that the bundle of the filaments receives moderate tension for flexible stretching, and the spinning process is applied to the bundle of the filaments before or after the stretching roll (Godette) device. Manufacturing method of flat yarn. A method for producing a flat yarn according to claim 1, wherein the fluid is heated to 50 ° C or higher, preferably 70 to 90 ° C. The method of claim 1, wherein the amount of fluid supplied to the filament bundle is between 25% and 35% of the advanced amount (weight) of the yarn per unit time. The method according to claim 1, wherein the total length and the firing speed of the braking surface are mutually controlled so as to be subjected to a tension between 0.5 and 2 CN / dtex, preferably between 0.7 and 1.5 CN / dtex, by the yarn stretching roller device. Manufacturing method of flat yarn. The method of claim 1 or 4, wherein the length of the spinneret, the cooling in the spinneret, the distance between the surfaces to which the fluidband is fed, and the spinneret, delivery speed, and denier of the filament allow the filament to enter the fluidband. Flat glass manufacturing method characterized in that it is adjusted to have a temperature in the glass transition temperature range. A method according to any one of claims 1 to 5, characterized in that the application of the fluid and then the guidance on the braking surface takes place in a very limited space filled with fluid mist. 7. A flat according to any one of the preceding claims, wherein the fluid is applied on a fixed surface which guides the yarn and the fluid stream spouts upwards from the nozzle orifice located in the yarn passage and approaches the fluid band. Manufacturing method of the company. 8. The method for manufacturing a flat yarn according to claim 7, wherein the nozzle orifice is provided in the groove through which the yarn moves forward. The process according to any of claims 1 to 6, wherein the fluid rotates slowly so that the stream of fluid is designed and configured as a yarn guide groove extending circumferentially or formed laterally adjacent fluid-rejection zones. Method for producing a flat yarn, characterized in that applied to the outer circumference of the roll applied to the adjacent zone. The method for producing a flat yarn according to any one of claims 1 to 9, wherein the viscosity of the fluid is less than or equal to the viscosity of water. The method for producing a flat yarn according to any one of claims 1 to 10, wherein the main component of the fluid is water. Process according to claim 11, characterized in that the fluid contains water with additives, in particular up to 5% by weight, preferably up to 1% by weight of oil additives. The method for producing a flat yarn according to any one of claims 1 to 12, wherein a humectant is added to the fluid. The method of claim 13, wherein the fluid is water having a wetting agent component of 1 wt% or less, preferably 0.5 wt% or less. 15. A method according to any one of the preceding claims, characterized in that the loops of the individual braking surfaces are adjusted in particular between 15 and 120 degrees. Method according to any one of the preceding claims, characterized in that the path between the braking surfaces is guided downward and is deflected below 70 °, preferably below 60 ° from the vertical. 17. The method for producing a flat yarn according to any one of claims 1 to 16, wherein the yarn passages comprise at least three braking surfaces that are arranged in sequence and curved in an alternating direction. 18. The drawing roll apparatus according to any one of claims 1 to 17, wherein the die after advancing on the braking surface is subjected to the drawing roll apparatus following the braking surface at a contact temperature of 100 ° C ± 20 ° C for polyamide and 140 ° C ± 20 ° C for polyester der. Method for producing a flat yarn, characterized in that heated by. 19. The method for producing a flat yarn according to any one of claims 1 to 18, wherein a circumferential speed of the stretching roll is higher than 4000 m / min. 20. The method for producing a flat yarn according to any one of claims 1 to 19, wherein a processing fluid is added after the stretching roll. 20. The method of any one of claims 1 to 19, wherein the working fluid is applied between the last braking surface and the stretching roll device. The method for producing a flat yarn according to any one of claims 1 to 21, wherein the filament denier is 5.5 dtex or less. The method for producing a flat yarn according to any one of claims 1 to 22, wherein the yarn denier is 360 dtex or less. ※ Note: The disclosure is based on the initial application.