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Production method of BCF nylon 66 medium-low denier yarn and BCF nylon 66 medium-low denier yarn

A production method and technology of medium and low denier, applied in the field of BCF nylon 66 medium and low denier yarns, can solve the problems such as the difficulty of stable deformation spinning of BCF nylon yarns, and achieve good spinnability, less clogging and low failure rate. Effect

Inactive Publication Date: 2019-03-26
SHEN MA INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the above-mentioned problems and deficiencies, to provide a production method for BCF nylon 66 medium and low denier yarns, so as to solve the problem that low denier BCF nylon yarns are difficult to stably deform and spin at low deniers

Method used

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  • Production method of BCF nylon 66 medium-low denier yarn and BCF nylon 66 medium-low denier yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: see figure 1 , the production method of low denier yarn in BCF nylon 66 of the present invention, the detailed steps of this production method are as follows:

[0033] a. Spinning and cooling: Add the dried nylon 66 chips into the screw extruder, extrude and melt to become spinnable nylon 66 melt, and send the spinnable nylon 66 melt into the spinning box Spinning, the spinning method adopts the commonly used ordinary spinning process, and the tow coming out of the spinning box is cooled and formed;

[0034] B, oiling: the tow after cooling and forming in step a is oiled through the oil agent nozzle, and the oil agent adhesion is 0.8% of the tow quality;

[0035] c, drafting: the tow after oiling in step a is drawn between the first roll and the second roll after the pre-drawing roll, the temperature of the first roll is 60 degrees, the temperature of the second roll is 20 °C, and the draft ratio is 2.8; The roll speed is 956 m / min, and the second roll s...

Embodiment 2

[0045] Embodiment 2: basically the same as Embodiment 1, the difference is:

[0046] The production method of low denier yarn in BCF nylon 66 of the present invention, the detailed steps of this production method are as follows:

[0047] a. Spinning and cooling: Add the dried nylon 66 chips into the screw extruder, extrude and melt to become spinnable nylon 66 melt, and send the spinnable nylon 66 melt into the spinning box Spinning, the spinning method adopts the commonly used ordinary spinning process, and the tow coming out of the spinning box is cooled and formed;

[0048] b, oiling: the tow after cooling and forming in step a is oiled through the oil agent nozzle, and the oil agent adhesion is 1.0% of the tow quality;

[0049]c, drafting: the yarn after oiling in step b is drafted between the first roll and the second roll after the pre-drawing roll, the temperature of the first roll is 70 degrees, the temperature of the second roll is 205, and the draft ratio is 2.8. T...

Embodiment 3

[0059] Embodiment 3: basically the same as Embodiment 1, the difference is:

[0060] The production method of low denier yarn in BCF nylon 66 of the present invention, the detailed steps of this production method are as follows:

[0061] a. Spinning and cooling: Add the dried nylon 66 chips into the screw extruder, extrude and melt to become spinnable nylon 66 melt, and send the spinnable nylon 66 melt into the spinning box Spinning, the spinning method adopts the commonly used ordinary spinning process, and the tow coming out of the spinning box is cooled and formed;

[0062] B, oiling: the tow after cooling and forming in step a is oiled through the oil agent nozzle, and the oil agent adhesion is 0.9% of the tow quality;

[0063] c, drafting: the tow after oiling in step a is drafted between the first roll and the second roll after the pre-drawing roll, the temperature of the first roll is 70 degrees, the temperature of the second roll is 200, and the draft ratio is 2.77. ...

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Abstract

The invention belongs to the technical field of nylon 66 spinning production, and relates to a production method of a BCF nylon 66 medium-low denier yarn, which comprises the following steps of: a, spinning and cooling; b, firstly oiling tows through an oiling agent nozzle; c, drafting the tows after oiling in step b between a first roller and a second roller; d, feeding the drawn tows in step c into a deforming machine for heating deformation, arranging a suction pipe at the rear part of a deformation nozzle of the deforming machine, wherein the suction pipe is convenient to disassemble and clean, and the suction direction of the suction pipe is perpendicular to the direction of a filament path of the tows; e, cooling and shaping the deformed tows in step d on a cooling drum; f, punchingnetwork points on the tows cooled and shaped in step e; g, sending the tow punched with the network points in the step f into a winding machine to be wound into a bobbin, and winding to obtain the finished yarn. The BCF nylon 66 medium-low denier yarn has a fineness of 400 to 700 dtex, and the BCF nylon 66 medium-low denier yarn is prepared by using the method. The method solves the problems of serious filament, low breaking strength, large elongation and the like of the prior medium-low denier yarn.

Description

technical field [0001] The invention belongs to the technical field of production of BCF nylon 66 yarns, and in particular relates to a production method of BCF nylon 66 medium and low denier yarns and the BCF nylon 66 medium and low denier yarns. Background technique [0002] Nylon (nylon) BCF yarn: also known as: bulky filament (English name Bulk Continuous Filament), nylon BCF yarn has good elasticity, strong toughness, wear resistance, no lint, no pilling, durable, easy to clean, etc. Features: The nylon tufted carpet made of nylon BCF yarn is superior to all other carpets in terms of tread resistance, resilience, dust resistance and stain resistance. [0003] Therefore, nylon BCF yarn has developed rapidly since it entered the tufted carpet industry in the 1950s. Especially in recent years, nylon BCF yarn has become a more important pile fiber at present. In chemical fiber tufted carpets, nylon tufted yarn has been internationally recognized. Carpet is the main variety...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D13/00D01D5/16D02G1/00D02J13/00D02J1/08
CPCD01D5/16D01D13/00D02G1/004D02J1/08D02J13/00D10B2331/02
Inventor 杨东辉王安乐刘淼王劼任蕾王晓峰张阳阳石华
Owner SHEN MA INDUSTRY CO LTD
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