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Preparation method of wool fabric with flame-retardant function

A fabric and wool spinning technology, which is applied in the field of wool fabric preparation, can solve problems such as pollution of metal oxides and heavy metals, difficulty in realizing industrialized production, and difficulty in large-scale industrialized production, and achieve the effects of cost saving, convenient operation, and reduced consumption

Active Publication Date: 2014-07-23
吴江耀程纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Before the present invention was made, Chinese invention patent CN101250810 used SnO-containing 2 , zinc oxide, and manganese oxide sol flame retardant treatment on wool fabrics to obtain flame retardant wool fabrics, but metal oxides will bring heavy metal pollution
Chinese invention patent CN102720053A uses carbon spheres as a flame retardant, and deionized water and γ-mercaptopropyltriethoxysilane to make a carbon sphere flame retardant suspension. The wool fiber is impregnated in the carbon sphere flame retardant suspension. In a microwave reactor, heat to 70°C for microwave irradiation, and then perform flame retardant treatment in an ultrasonic disperser. This method requires the use of a microwave reactor, which is difficult for large-scale industrial production
Chinese invention patent CN102660869A uses the method of graft polymerization of phosphorus-containing acrylamide to prepare wool flame-retardant fabrics, but the technology is cumbersome and it is difficult to realize industrial production

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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  • Preparation method of wool fabric with flame-retardant function
  • Preparation method of wool fabric with flame-retardant function
  • Preparation method of wool fabric with flame-retardant function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 21ml of TEOS dropwise into a 500ml three-necked round-bottomed flask containing 22ml of EtOH and an appropriate amount of HCl, adjust the pH to 2-3, and stir vigorously for 30 minutes to obtain a uniform and clear silicon alkoxide system; while vigorously stirring, add a phosphate aqueous solution (0.92 k 2 HPO 4 +36ml H 2 O), and continued stirring at 70°C for 3 hours to obtain a colorless, transparent and uniform phosphorus / silica sol system.

[0020] The woolen fabric is dipped and rolled twice in the phosphorus / silica sol system, and the pressure is 1-3kg / cm 2 , the residual rate is 70-90%; then pre-baked at a temperature of 60-100°C, baked at a temperature of 120-180°C for 2-10 minutes, washed with water, and dried naturally to obtain a Wool fabric with flame retardant function.

[0021] See attached figure 1 , which is the particle size distribution diagram of the phosphorus-containing nano-silica sol provided in this example. Depend on figure 1 It can ...

Embodiment 2

[0023] Add 21ml TEOS, 22ml EtOH and appropriate amount of HCl into a 500ml three-neck round bottom flask in sequence, and adjust the pH to 2-3. Aqueous phosphate solution (0.69 g NH 4 h 2 PO 4 +36mlH 2 O), and continue to stir at 70°C for 3 hours to obtain a colorless, transparent and uniform phosphorus / silica sol system. The woolen fabric is dipped and rolled twice in the phosphorus / silica sol system, and the pressure is 1-3kg / cm 2 , with a residual rate of 70-90%, pre-baking at a temperature of 60-100°C, then baking at a temperature of 120-180°C for 2-10 minutes, washing with water, and drying naturally to obtain a Wool fabric with flame retardant function.

[0024] See attached figure 2 , which is the particle size distribution diagram of the silicon / phosphorus / nitrogen nano-sol prepared in this example. Depend on figure 2 It can be seen that the particle size distribution of the sol is around 10nm, indicating that the prepared silicon / phosphorus / nitrogen composit...

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 a wool fabric with a flame-retardant function. The preparation method comprises the steps of preparing nano composite sol by taking ethyl silicate as a hydrolysis precursor and inorganic phosphate as a flame-retardant additive; adsorbing nano silicon dioxide composite phosphate on the wool fabric through sol-to-gel conversion; carrying out after finishing on the wool fabric by means of the synergistic effect of silicon and phosphorus to obtain a favorable flame-retardant effect. A nano sol-gel finishing technology is adopted in the preparation method, so that the consumption of phosphorous components can be greatly reduced, the flame-retardant efficiency can be increased, and the industrial production can be favorably realized.

Description

technical field [0001] The invention relates to a method for preparing a woolen fabric with a flame-retardant function, and belongs to the technical field of textile functional finishing. Background technique [0002] About 50% of fire accidents are caused by textiles, therefore, the demand for flame-retardant fabrics is gradually increasing. Protein fibers such as wool and silk are widely used in pajamas, bedding, aircraft, high-speed trains, and high-end car interior materials due to their comfort, health care and high-grade materials. Once these items are burned, it will bring human life danger and property loss. Therefore, in order to adapt to a wider range of uses, it is very necessary to carry out flame-retardant finishing on protein fiber fabrics. Therefore, since the 1970s, a lot of research has been done on the flame retardancy of wool fabrics. Regarding the flame retardant treatment of wool, the earliest method is to immerse in phosphate and borate solutions and...

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 Applications(China)
IPC IPC(8): D06M15/643D06M11/71D06M11/72D06M101/10
Inventor 邢铁玲张维陈国强
Owner 吴江耀程纺织有限公司
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