A kind of preparation method of halogen-free flame-retardant non-melting nylon 66 fabric

A manufacturing method and fabric technology, applied in textiles and papermaking, fiber type, fiber treatment, etc., can solve problems such as poor surface activity, failure to achieve good flame retardant effect, and difficulty in infiltrating flame retardants.

Inactive Publication Date: 2016-02-03
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although nylon 66 fiber fabric has a wide range of applications, due to the large difference between its melting temperature and ignition point temperature, the fabric shrinks sharply when it is burned, and it is easy to form molten droplets. These droplets can easily burn the skin and spread the fire to other places. Material causes secondary fire
This shortcoming greatly affects the application of nylon 66 fabrics
[0003] In recent years, people have carried out a lot of research on the flame retardant finishing of nylon fabrics, but its surface activity is poor, and it is difficult for flame retardants to penetrate into the fiber, resulting in phosphorus and halogen flame retardants that are effective in flame retardant of other synthetic fiber fabrics. No good flame retardant effect can be achieved on nylon fiber fabrics

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Pretreatment of nylon with alkali solution: prepare 1g / L alkali solution, heat it until the solution boils, put it into the fabric, continue to boil for 40 minutes, and then wash it with water and dry it for use.

[0020] (2) Prepare flame retardant solution: Weigh 20% PNF, 10% AS, and 1% HEDP respectively, dissolve in water at a certain temperature and stir thoroughly to prepare a flame retardant solution.

[0021] (3) Two-dipping and two-pressing process: The fabric is fully immersed in the prepared flame retardant solution, soaked for 10 minutes, and then the experimental process of two-dipping and two-pressing is completed.

[0022] (4) Baking: The fabric after the second soaking and second pressing is prebaked at 100°C for 6 minutes and baked at 150°C for 2 minutes respectively.

Embodiment 2

[0024] (1) Pretreatment of nylon with alkali solution: prepare 2g / L alkali solution, heat it until the solution boils, put it into the fabric, continue to boil for 30 minutes, and then wash it with water and dry it for use.

[0025] (2) Prepare flame retardant solution: Weigh 26% PNF, 14% AS, and 2% HEDP respectively, dissolve in water at a certain temperature and stir thoroughly to prepare a flame retardant solution.

[0026] (3) Two-dipping and two-pressing process: The fabric is fully immersed in the prepared flame retardant solution for 20 minutes, and then the experimental process of two-dipping and two-pressing is completed.

[0027] (4) Baking: The fabric after the second dipping and second pressing is prebaked at 100°C for 5 minutes and baked at 150°C for 2 minutes respectively.

Embodiment 3

[0029] (1) Pretreatment of nylon with alkali solution: prepare 2g / L alkali solution, heat it until the solution boils, put it into the fabric, continue to boil for 25 minutes, and then wash it with water and dry it for use.

[0030] (2) Prepare flame retardant liquid: Weigh 23% PNF, 19% AS, and 1% HEDP respectively, dissolve in water at a certain temperature and stir well to prepare flame retardant liquid.

[0031] (3) Two-dipping and two-pressing process: The fabric is fully immersed in the prepared flame retardant solution for 30 minutes, and then the experimental process of two-dipping and two-pressing is completed.

[0032] (4) Baking: The fabric after the second dipping and second pressing is pre-baked at 100°C for 5 minutes and baked at 150°C for 1 minute respectively.

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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Abstract

The invention relates to a manufacturing method of a halogen-free flame retardant non-melting nylon66 fabric, and belongs to the fields of flame retarding and modifying of fabrics. Firstly, the fabric is pretreated, then the fabric undergoes the processes of sufficient steeping and conventional steeping pressing with a nitrogen-phosphorus flame retardant containing PNF, AS and HEDP, and baking is carried out to firmly combine the flame retardant with the fabric so as to achieve the aims of retarding flame and preventing molten drop. The manufacturing method of the halogen-free flame retardant non-melting nylon 66 fabric is capable of overcoming the abuses that halogen is contained and the molten drop is serious in the prior art. Through the manufacturing method, the treated fabric has favorable flame retardance, and the color and the hand feel of the fabric have no obvious change; experiments show that the oxygen index value of the treated chinlon sample is improved from 21.1% to 26.0%; the vertical combustion results show that the damaged length of the treated chinlon fabric sample is reduced from 14.0cm to 10.6cm, the after flame time is shortened from 68.9s to 1.3s, the molten drop number during the combustion is decreased, the carbonization of the fabric is favorable, the dosage of the flame retardant is less, the process is simple and the cost is low, so that the method is an efficient flame retarding method.

Description

technical field [0001] The invention relates to a preparation method of nylon 66 fabric, in particular to a preparation method of halogen-free flame-retardant non-melting nylon 66. Background technique [0002] Although nylon 66 fiber fabric has a wide range of applications, due to the large difference between its melting temperature and ignition point temperature, the fabric shrinks sharply when it is burned, and it is easy to form molten droplets. These droplets can easily burn the skin and spread the fire to other places. Material caused secondary fire. This shortcoming greatly affects the application of nylon 66 fabric. [0003] In recent years, people have carried out a lot of research on the flame retardant finishing of nylon fabrics, but its surface activity is poor, and it is difficult for flame retardants to penetrate into the fiber, resulting in phosphorus and halogen flame retardants that are effective in flame retardant of other synthetic fiber fabrics. No good...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/282D06M11/66D06M13/288D06M101/34
Inventor 张胜陈宸谷晓昱孙军
Owner BEIJING UNIV OF CHEM TECH
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