Preparation method of durable and flame retardant preparation for cotton fabric

A durable flame-retardant, cotton fabric technology, applied in the direction of flame-retardant fibers, plant fibers, textiles and papermaking, etc., can solve the problems of limited washable times and unsatisfactory products, and achieve low cost, short reaction time and soft hand feeling Effect

Inactive Publication Date: 2017-02-15
合肥市东方美捷分子材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of washable products after finishing is limited, which cannot meet the requirements of some special products for flame-retardant and washable 100-200 times

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 durable and flame retardant preparation for cotton fabric
  • Preparation method of durable and flame retardant preparation for cotton fabric
  • Preparation method of durable and flame retardant preparation for cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 80 parts by mass of tetrakismethylolphosphine chloride, 20 parts by mass of tetrakishydroxymethylphosphorus sulfate and 15 parts by mass of dicyandiamide into the ceramic mixing reactor, while slowly heating the reactor and stirring continuously; Completely dissolve, add phosphoric acid solution to the reaction kettle to adjust the pH value of the reaction mixture to 4.8, then slowly add 0.2 parts by mass of magnesium chloride to the reaction kettle, when the temperature of the system rises to 60°C, stop heating the reaction kettle, and continue the reaction for 2 hours, Then add 15 parts by mass of 0.1 wt% sodium dimethyl dithiocarbamate aqueous solution, stir evenly, cool down to normal temperature by cooling cycle, and obtain a durable flame retardant for cotton fabrics. The flame retardant and washable properties of the finished cotton fabrics are shown in Table 1.

[0022] Table 1 Washability of flame retardant fabrics

[0023]

Embodiment 2

[0025] Add 75 parts by mass of tetrakismethylolphosphine chloride, 25 parts by mass of tetrakishydroxymethylphosphorus sulfate and 12.5 parts by mass of guanidine into the ceramic mixing reactor, while slowly heating the reactor and stirring continuously; until the dicyandiamide is completely dissolved , add phosphoric acid solution to the reactor to adjust the pH value of the reaction mixture to 5.5, then slowly add 0.1 parts by mass of aluminum chloride and 0.2 parts by mass of potassium chloride to the reactor, and stop heating the reactor when the temperature of the system rises to 65 °C , and continue to react for 1.5 hours, then add 12 parts by mass of 0.5wt% sodium polysulfate aqueous solution, stir evenly, cool down to normal temperature by cooling cycle, and obtain a durable flame retardant for cotton fabrics. The flame retardant and washing durability of cotton fabrics after finishing are shown in Table 2.

[0026] Table 2 Washing resistance of flame retardant fabric...

Embodiment 3

[0029] Add 70 parts by mass of tetrakishydroxymethylphosphorus chloride, 20 parts by mass of tetrakishydroxymethylphosphorus sulfate and 25 parts by mass of urea into the ceramic mixing reactor, while slowly heating the reactor and stirring continuously; when the dicyandiamide is completely dissolved , add phosphoric acid solution to the reaction kettle to adjust the pH value of the reaction mixture to 6, then slowly add 0.2 parts by mass of aluminum phosphate to the reaction kettle, when the temperature of the system rises to 70°C, stop heating the reaction kettle, and continue the reaction for 1.5 hours, then Add 14 parts by mass of 0.3wt% sodium nitrite aqueous solution, stir evenly, cool down to normal temperature by cooling cycle, and obtain a durable flame retardant for cotton fabrics. The flame retardancy and washability of the finished cotton fabrics are shown in Table 3.

[0030] Table 3 Washability of Flame Retardant Fabrics

[0031]

[0032] Note:

[0033] Flam...

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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PUM

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Abstract

The invention discloses a preparation method of durable and flame retardant preparation for cotton fabric. The method is to put into a reaction kettle four hydroxymethyl phosphorus compound and high nitrogen content substance according to a ratio of 4:0.5-4:1, heating and stirring to dissolve; using the phosphoric acid solvent to adjust the pH value of the reaction mixture to 4.5-6, adding in catalyst; when the system temperature rises to 60-70 DEG, the heating is stopped and the reaction is continued for 1.5-2.0 hours; then adding in the terminator, stirring evenly, cooling and cycling to lower the temperature to the normal level, and obtaining the durable and flame retardant preparation for cotton fabric. The method is simple in preparation process, short in reaction time, low in cost, and good in flame retardant effect. The effect of the preparation is lasting and the wash durability lasts 200 times.

Description

[0001] 1. Technical field [0002] The invention relates to a method for preparing a flame retardant, in particular to a method for preparing a durable flame retardant for cotton fabrics. [0003] 2. Background technology [0004] Cotton fabric, as a traditional clothing and industrial material, is welcomed by people because of its excellent physical and mechanical properties, good hygroscopicity, natural hand feeling, comfortable wearing, and economic benefits. The surface of cotton fiber contains a multi-microcapillary structure, and the six carbon atoms of the glucose ring contain active primary hydroxyl groups, which can react with flame retardants with active groups, and the finished cotton fabrics can obtain excellent flame retardancy and durability. washing sex. [0005] At present, there have been relevant literature reports on the preparation of durable flame retardants for cotton fabrics. For example, CN103265577A discloses a novel flame retardant for cotton, the st...

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): D06M13/44D06M13/467D06M101/06
CPCD06M13/44D06M13/467D06M2101/06D06M2200/30D06M2200/50
Inventor 刘蕊平朱守诚张静刘灏褚维发杨宏星漆静秋
Owner 合肥市东方美捷分子材料技术有限公司
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