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Composite polyester filament and processing method thereof

A technology of polyester filament and processing method, which is applied in filament/thread forming, melting of filament raw materials, and manufacture of fire-resistant and flame-retardant filaments. It can solve problems such as poor layering and single flame-retardant effect, and achieve improved dispersion properties, avoiding the loss of flame retardant performance, and the effect of high phosphorus content

Inactive Publication Date: 2019-10-22
福建百宏聚纤科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] Chinese patent application number 2018107671310 relates to a curtain fabric with flame retardant and negative oxygen ion composite functions, including bottom surface texture, inner texture and floral texture, the bottom surface texture is eight warp satin weaves, the inner Both the weave and the flower part are composed of warp yarns and weft yarns. The weft yarns include A weft yarns and B weft yarns. Combustible polyester yarn, the flower part uses sixteen satin weaves as the hemming structure, and the inner and flower parts are made of flame-retardant polyester fiber and negative oxygen ion fiber interwoven through jacquard, which has flame-retardant The curtain fabric with the composite function of negative oxygen ions, the surface layer of the fabric presents a three-dimensional effect with distinct tones, which enriches the layering of the fabric, and solves the problem that the existing curtain fabrics have poor layering and only have a single flame-retardant effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Composite polyester filament and processing method thereof
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Examples

Experimental program
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Effect test

Embodiment 1

[0053] A composite polyester filament with a flame-retardant property of LOI of 31%, a fineness of 0.20dpf, a breaking strength of 3.3cN / dtex, and a breaking elongation of 20%.

[0054] A processing method for composite polyester filament, the concrete steps are:

[0055] (1) Preparation of molten phosphorus-containing flame retardant:

[0056] Using furandicarbaldehyde and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxa (DOPO) as raw materials, firstly DOPO was dissolved in dichloroethane, and then under nitrogen protection, the furan The dichloroethane solution of diformaldehyde was added to the reaction system, and then refluxed at 60-80°C for 12 hours to obtain a white powder precipitate. Vacuum drying for 24 hours to prepare a molten phosphorus-containing flame retardant;

[0057] The phosphorus content of the molten phosphorus-containing flame retardant is 11.5 wt%, and the melting point of the molten phosphorus-containing flame retardant is 156-160°C.

[0058] The m...

Embodiment 2

[0070] A composite polyester filament with a flame-retardant property of LOI of 32%, a fineness of 2dpf, a breaking strength of 3.5cN / dtex, and a breaking elongation of 30%.

[0071] A processing method for composite polyester filament, the concrete steps are:

[0072] (1) Preparation of molten phosphorus-containing flame retardant:

[0073] Using furandicarbaldehyde and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxa (DOPO) as raw materials, firstly DOPO was dissolved in dichloroethane, and then under nitrogen protection, the furan The dichloroethane solution of diformaldehyde was added to the reaction system, and then refluxed at 60-80°C for 12 hours to obtain a white powder precipitate. Vacuum drying for 24 hours to prepare a molten phosphorus-containing flame retardant;

[0074] The phosphorus content of the molten phosphorus-containing flame retardant is 11.6 wt%, and the melting point of the molten phosphorus-containing flame retardant is 156-160°C.

[0075] The mass...

Embodiment 3

[0086] A composite polyester filament with a flame-retardant property of LOI of 33%, a fineness of 3.3dpf, a breaking strength of 4.0cN / dtex, and a breaking elongation of 45%.

[0087] A processing method for composite polyester filament, the concrete steps are:

[0088] (1) Preparation of molten phosphorus-containing flame retardant:

[0089] Using furandicarbaldehyde and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxa (DOPO) as raw materials, firstly DOPO was dissolved in dichloroethane, and then under nitrogen protection, the furan The dichloroethane solution of diformaldehyde was added to the reaction system, and then refluxed at 60-80°C for 12 hours to obtain a white powder precipitate. Vacuum drying for 24 hours to prepare a molten phosphorus-containing flame retardant;

[0090] The phosphorus content of the molten phosphorus-containing flame retardant is 11.8 wt%, and the melting point of the molten phosphorus-containing flame retardant is 156-160°C.

[0091] Descri...

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Abstract

The invention relates to a composite polyester filament and a processing method thereof. The composite polyester filament is characterized in that the flame retardation LOI is 31-33%, the fineness is0.20-3.3dpf, the breaking strength is 3.3-4.0cN / dtex, and the elongation at break is 20-45%. The composite polyester filament and the processing method thereof have advantages of high efficiency, highproductivity and great scale benefits by a melt direct-spinning process and further have advantages of flexibility and multifunctional processing by an online adding and pre-pumping injection type masterbatch adding process.

Description

technical field [0001] The invention relates to the technical field of textile production, in particular to a composite polyester filament and a processing method thereof. Background technique [0002] Polyester fiber, commonly known as "polyester". It is a synthetic fiber obtained by spinning polyester obtained by polycondensation of organic dibasic acid and dibasic alcohol, referred to as PET fiber, which belongs to polymer compounds. Invented in 1941, it is currently the largest variety of synthetic fibers. The biggest advantage of polyester fiber is that it has good wrinkle resistance and shape retention, and has high strength and elastic recovery ability. It is strong and durable, anti-wrinkle and non-ironing, and non-sticky. [0003] Polyester (PET) fiber is a synthetic fiber spun from each chain link in the macromolecular chain through an ester group to form a fiber-forming polymer. The English abbreviation of polyester is PET. In my country, fibers with a polyeth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01F6/92D01F1/07D01D1/04D01D1/06D01D5/092D01D5/098
CPCD01D1/04D01D1/06D01D5/092D01D5/098D01F1/07D01F6/92
Inventor 沈家庆
Owner 福建百宏聚纤科技实业有限公司