A kind of preparation method of flame-retardant cotton fabric

A flame-retardant cotton and cotton fabric technology, applied in chemical instruments and methods, plant fibers, textiles and papermaking, etc., can solve the problems of free formaldehyde, release, etc., achieve simple process, broad application prospects, and solve durability problems

Active Publication Date: 2016-08-31
新乡市新科防护科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing flame-retardant cotton fabrics in view of the problem of release of free formaldehyde in the flame retardants commonly used for cotton fabrics in the current market, using natural organic phosphoric acid compounds phytic acid and sodium phytate as The raw material of cotton fabric flame retardant finishing agent is reacted with γ-glycidoxytrimethoxysilane to prepare a flame retardant containing multiple active groups

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 kind of preparation method of flame-retardant cotton fabric
  • A kind of preparation method of flame-retardant cotton fabric
  • A kind of preparation method of flame-retardant cotton fabric

Examples

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Effect test

Embodiment 1

[0016] A kind of preparation method of flame-retardant cotton fabric, its process is as follows:

[0017] (1) Add 0.5mol of natural phytic acid compound and 2mol of γ-glycidoxytrimethoxysilane into 100ml of acetone, and stir and react continuously for 1h at 70°C to obtain a flame retardant finishing solution. The flame retardant finishing solution contains phytic acid derivatives with 4 active groups, and the structural formula is:

[0018]

[0019] (2) Immerse the cotton fabric in the above-mentioned flame-retardant finishing solution for 10 minutes, then soak it twice and roll it twice, and the excess rate is 90%, then dry the cotton fabric at 80°C for 5 minutes, then bake it at 170°C for 3 minutes, and finally wash the fabric with water, Soap, dry.

Embodiment 2

[0021] A kind of preparation method of flame-retardant cotton fabric, its process is as follows:

[0022] (1) Add 1 mol of natural phytic acid compound and 3 mol of γ-glycidoxytrimethoxysilane into 80 ml of isopropanol, and keep stirring and reacting for 0.5 h at 80° C. to obtain a flame retardant finishing solution. The flame retardant finishing solution contains phytic acid derivatives with 3 active groups, and the structural formula is:

[0023]

[0024] (2) Immerse the cotton fabric in the above-mentioned flame retardant finishing solution for 10 minutes, then soak it twice and roll it twice, and the excess rate is 80%, then dry the cotton fabric at 70°C for 6 minutes, then bake it at 160°C for 4 minutes, and finally wash the fabric with water, Soap, dry.

Embodiment 3

[0026] A kind of preparation method of flame-retardant cotton fabric, its process is as follows:

[0027] (1) Add 1 mol of natural phytic acid compound and 5 mol of γ-glycidoxytrimethoxysilane into 150ml of methanol, and keep stirring and reacting at 60°C for 2 hours to obtain a flame retardant finishing solution. The finishing solution contains phytic acid derivatives with 5 active groups, the structural formula is:

[0028]

[0029] (2) Immerse the cotton fabric in the above-mentioned flame-retardant finishing solution for 10 minutes, then soak it twice and roll it twice, and the excess rate is 100%, then dry the cotton fabric at 60°C for 10 minutes, then bake it at 180°C for 1.5 minutes, and finally wash the fabric with water , Soap, Dry.

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 method for preparing a flame-retardant cotton fabric. Natural phytic acid compounds and γ-glycidoxytrimethoxysilane are added to an organic solvent, and stirred and reacted at 50-80°C for 0.5-2 hours to obtain Flame retardant finishing solution, soak the cotton fabric in the above flame retardant finishing solution for 8-15 minutes, then dip and roll twice, then dry the cotton fabric at 60-90°C, and then bake it at 150-180°C for 2 ~8 min, finally wash with water, soap and dry. Using natural phytic acid as the reaction raw material, there is no release of free formaldehyde on the prepared flame retardant textiles, which solves the problem of formaldehyde release from most current flame retardants, and introduces γ‑glycidoxytrimethoxysilane into the flame retardant In the molecule, the prepared flame retardant contains multiple reactive groups, which solves the durability problem of flame-retardant finishing of cotton fabrics. The technical solution of the invention is simple in process, easy to operate, and has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and relates to a flame retardant finishing method using natural phytic acid derivatives as raw materials as flame retardants for cotton fabrics. The phytic acid used in the method is a natural phytic acid extracted from plant seeds. Phosphorus compounds, in particular, can realize the safety and environmental protection of flame-retardant finished fabrics. The prepared flame retardant has multiple reactive groups, which can endow the fabric with better flame-retardant durability. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, the demand for flame-retardant textile fabrics is increasing. Among the flame-retardant finishing agents for cotton fabrics, tetramethylol-based flame retardants (THPC or THPOH) and N-methylol- 3-Dimethoxyphosphorylpropionamide flame retardants (trade name Pyrovatex CP) are currently...

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 新乡市新科防护科技有限公司
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