Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of halogen-free flame retardant non-melting nylon66 fabric

A flame-retardant nylon and its manufacturing method technology, applied in the field of preparation of halogen-free flame-retardant non-melting nylon 66, can solve problems such as easy formation of molten droplets, failure to achieve good flame-retardant effect, poor surface activity, etc.

Inactive Publication Date: 2014-07-02
BEIJING UNIV OF CHEM TECH
View PDF6 Cites 6 Cited by
  • 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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0020] (2) Configuration of flame retardant liquid: Weigh 20% PNF, 10% AS, and 1% HEDP respectively, dissolve them in water at a certain temperature and stir well to obtain a flame retardant liquid.

[0021] (3) Two-dipping and two-pressing process: fully immerse the fabric in the prepared flame retardant liquid for 10 minutes, and then complete the experimental procedure of two-dipping and two-pressing.

[0022] (4) Baking: The fabrics after two dipping and two pressing were pre-baked at 100°C for 6 minutes and at 150°C for 2 minutes respectively.

Embodiment 2

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

[0025] (2) Configuration of flame retardant liquid: Weigh 26% PNF, 14% AS, and 2% HEDP respectively, dissolve them in water at a certain temperature and stir well to obtain a flame retardant liquid.

[0026] (3) Two-dipping and two-pressing process: fully immerse the fabric in the prepared flame retardant liquid for 20 minutes, and then complete the experimental process of two-dipping and two-pressing.

[0027] (4) Baking: The fabrics after two dipping and two pressing were pre-baked at 100°C for 5 minutes and at 150°C for 2 minutes respectively.

Embodiment 3

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

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

[0031] (3) Two-dipping and two-pressing process: fully immerse the fabric in the prepared flame retardant liquid for 30 minutes, and then complete the experimental process of two-dipping and two-pressing.

[0032] (4) Baking: The fabrics after two dipping and two pressing were pre-baked at 100°C for 5 minutes and 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
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Continue burningaaaaaaaaaa
Login to View More

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 its large difference between its melting temperature and the ignition 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 areas. The material causes a 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 the flame retardants are difficult to penetrate into the fibers, resulting in phosphorus and halogen flame retardants that are effective for other synthetic fiber fabrics. It can not achieve a g...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com