A preparation method of flame-retardant and water-repellent double-functional cotton fabric

A cotton fabric, water double technology, applied in the field of dyeing and finishing, to achieve the effect of easy operation, broad application prospects and simple process

Inactive Publication Date: 2016-02-24
华腾地毯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It can be seen from the above that most of the currently successfully marketed flame retardants have the problem of releasing free formaldehyde, and the fluorine-based C8 waterproof finishing agent is also facing a ban; obtaining the dual functions of flame retardancy and water repellency of cotton fabrics often requires the use of multiple functional finishing agents or multiple steps to achieve

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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  • A preparation method of flame-retardant and water-repellent double-functional cotton fabric
  • A preparation method of flame-retardant and water-repellent double-functional cotton fabric
  • A preparation method of flame-retardant and water-repellent double-functional cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of flame-retardant cotton fabric, the steps are as follows:

[0022] (1) Add 1 mol of natural phytic acid compound and 2 mol of γ-glycidoxytrimethoxysilane into 100 mL of acetone solution, stir and react at 70°C for 1 hour to obtain a flame retardant finishing solution, which contains 2 Phytic acid derivatives with active groups;

[0023] (2) Add 4 mol of silane coupling agent octyltriethoxysilane and 2 mol of ethyl orthosilicate to the above-mentioned flame retardant finishing solution, and stir and react continuously at 80°C for 5 hours to obtain a compound with dual functions of flame retardant and water repellency finishing fluid;

[0024] (3) The cotton fabric is soaked in the flame-retardant and water-repellent double-functional finishing solution obtained in step (2) for 10 minutes, then dipped and rolled twice, and the excess rate is 90%, and then the cotton fabric is dried at 80° C. for 5 minutes, and then dried at 170 Bake at ℃ for 3 min...

Embodiment 2

[0028] A kind of preparation method of flame-retardant cotton fabric, its process is as follows:

[0029] (1) Add 0.8 mol of natural phytic acid compound and 2.4 mol of γ-glycidoxytrimethoxysilane into 150 mL of methanol solution, stir and react continuously at 80°C for 0.5 h to obtain a flame retardant finishing solution, It is a phytic acid derivative containing 3 active groups;

[0030] (2) Add 3 mol of silane coupling agent hexadecyltrimethoxysilane and 1 mol of ethyl orthosilicate to the above-mentioned flame retardant finishing solution, and stir and react continuously at 70°C for 8 hours to obtain a flame retardant and water-repellent double Functional finishing fluid;

[0031] (3) The cotton fabric is soaked in the flame-retardant and water-repellent double-functional finishing solution obtained in step (2) for 10 minutes, then dipped and rolled twice, and the excess rate is 100%, and then the cotton fabric is dried at 60° C. for 8 minutes, and then dried at 160 Bake...

Embodiment 3

[0035] A kind of preparation method of flame-retardant cotton fabric, its process is as follows:

[0036] (1) Add 1.5mol of natural phytic acid compounds and 3mol of γ-glycidoxytrimethoxysilane into 200mL of ethanol solution, stir and react at 60°C for 2 hours to obtain a flame retardant finishing solution, which contains Phytic acid derivatives with 2 active groups;

[0037] (2) Add 5 mol of silane coupling agent tridecaperfluorohexyltriethoxysilane and 2 mol of tetraethoxyethyl orthosilicate to the above-mentioned flame retardant finishing solution, and continuously stir and react at 75°C for 4 hours to obtain a flame retardant and repellent Water dual-function finishing fluid;

[0038] (3) Immerse the cotton fabric in the flame-retardant and water-repellent double-functional finishing solution obtained in step (2) for 10 minutes, then dip and roll twice, and the excess rate is 110%, then dry the cotton fabric at 70°C for 4 minutes, and then dry it at 180 Bake at ℃ for 2 m...

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 discloses a preparation method of flam-retardant and water-repellency dual-function cotton fabric. The method takes natural phytic acid and gamma-epoxy propoxy trimethoxy silane as reaction raw materials and comprises the steps of adding the reaction raw materials into an organic solvent to have a reaction to obtain flame-retardant finishing liquid; then, adding a silane coupling agent and ethyl orthosilicate into the flame-retardant finishing liquid, and mixing to have a reaction to obtain flam-retardant and water-repellency dual-function finishing liquid; dipping the cotton fabric in the obtained finishing liquid for 8-15 minutes, and then respectively dipping and rolling twice; after that, drying the cotton fabric at the temperature of 60-90 DEG C, and braking the dried cotton fabric at the temperature of 150-180 DEG C. The prepared flam-retardant and water-repellency dual-function fabric does not have free formaldehyde, so that the problem that most existing fire retardants release formaldehyde can be solved; the prepared fire retardant contains multiple reactive groups, so that the problem of durability of the cotton fabric subjected to flame-retardant finishing can be solved; alkyl group or a fluorine-containing long-chain silane coupling agent is introduced into molecules of a fire-retardant water repellent, so that the prepared finishing agent has the function of water-repellency. The technical scheme is simple in technology and convenient to operate, thus having wide application scope.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and in particular relates to a method for preparing flame-retardant and water-repellent double-functional cotton fabrics. The prepared finishing agent can endow the fabric with better durability of flame-retardant and water-repellent finishing. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, the demand for textile fabrics with two functions of flame retardant and water repellency is increasing. In the most commonly used flame retardant finishing agents for cotton fabrics, tetramethylol flame retardants (THPC or THPOH) and N-hydroxymethyl-3-dimethoxyphosphoryl propionamide flame retardants (trade name PyrovatexCP) all have the release problem of free formaldehyde. Among the current water and oil repellent finishing agents, fluorine-based C8 waterproof finishing agents have been banned, and most manufacturer...

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): D06M13/513C07F9/117D06M101/06
Inventor 曹机良孟春丽王延伟卢奎程献伟
Owner 华腾地毯有限公司
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