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Flame retardant anti-dripping blended fabric and preparation method thereof

A blended fabric, anti-dripping technology, applied in textiles and papermaking, fiber treatment, yarn, etc., can solve the problems of low protection, sharp decrease in strength, poor shape retention of flame-retardant viscose fabrics, etc., to achieve good The effect of anti-dripping and good flame retardancy

Inactive Publication Date: 2012-08-15
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. The strength of the flame-retardant viscose itself has defects, and its strength will decrease sharply in a wet state.
2. The flame-retardant viscose fabric has poor shape retention and serious deformation after washing
Patent CN 101864631A discloses a method of blending aramid fiber and carbon fiber to make yarn, which is characterized in that aramid fiber and carbon fiber are blended at a ratio of 1:1, but there are unavoidable disadvantages: 1. Both the aramid fiber and carbon fiber have poor wearing properties. It is not very ideal, especially in terms of moisture absorption and wearing comfort. 2. Aramid and carbon fiber are relatively expensive, and the blending ratio of 1:1 makes the fabric cost higher
Its disadvantages are: 1. The blending process of flame retardant viscose and stainless steel fiber is not easy to control, and spinning is more difficult
2. Flame-retardant viscose strength, especially wet strength and low shape retention after washing
3. Stainless steel fibers have good thermal conductivity. When used in high-temperature fires outside, their thermal conductivity is greater than heat dissipation. Although they are flame-retardant, their protection is low.
But no one used flame retardant polyester and aramid for blending, and got both flame retardant and better anti-dripping properties, and how to make better cohesion in the blend of the two fibers was seldom mentioned

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Take 200g of aramid fiber 1313, add a cleaning solution consisting of sodium hydroxide, degreasing agent and water at a bath ratio of 1:10 (wherein the concentration of sodium hydroxide is 8g L -1 , the degreaser concentration is 2g·L -1 ); clean, then take out tap water to wash and dry;

[0028] (2) Put the washed aramid fibers into a beaker, add 200mL / L acetone solution, control the bath ratio at 1:30, treat at 90°C for 60min, wash with water and dry ;

[0029] (3) Take 500 grams of reactive phosphorus-based flame-retardant polyester (phosphorus content 8000ppm), add 4g / L sodium hydroxide solution at a bath ratio of 1:6 for treatment, the treatment time is 90min, and the treatment temperature is controlled at 50°C. Wash and dry with tap water;

[0030] (4) The treated aramid fiber and flame-retardant polyester account for 8% by mass, and the flame-retardant polyester accounts for 92% for blending and weaving to obtain a flame-retardant and anti-dripping fabric....

Embodiment 2

[0033] (1) Take 200g of aramid fiber 1313, add a cleaning solution consisting of sodium hydroxide, degreaser DO and water at a bath ratio of 1:15 (wherein the concentration of sodium hydroxide is 3g L -1 , the DO concentration of degreaser is 3g·L -1 ), cleaned, and then taken out of tap water to wash and dry;

[0034] (2) Put the washed aramid fibers into a beaker, add 300mL / L dimethylformamide solution, control the liquor ratio at 1:20, treat at 60°C for 100min, and use water after treatment wash and dry;

[0035] (3) Take 300 grams of reactive phosphorus-based flame-retardant polyester (phosphorus content 10000ppm) and add 8g / L sodium hydroxide solution at a bath ratio of 1:5 for treatment. The treatment time is 30 minutes, and the treatment temperature is controlled at 80 ℃, wash and dry with tap water;

[0036] (4) The processed aramid fiber and flame-retardant polyester account for 20% of the mass ratio of aramid fiber, and 80% of the flame-retardant polyester is used...

Embodiment 3

[0039] (1) Take 200g of aramid fiber 1313, and add a cleaning solution composed of sodium hydroxide, degreaser DO and water at a bath ratio of 1:13 (wherein the concentration of sodium hydroxide is 6g L -1 , the DO concentration of degreaser is 5g·L -1 ), cleaned, and then taken out of tap water to wash and dry;

[0040] (2) Put the washed aramid fibers into a beaker, add 250mL / L dimethyl sulfoxide solution, control the liquor ratio at 1:25, treat at 80°C for 80 minutes, and use water after treatment wash and dry;

[0041] (3) Take 300 grams of reactive phosphorus-based flame-retardant polyester (phosphorus content 7000ppm), add 6g / L sodium hydroxide solution at a bath ratio of 1:8 for treatment, the treatment time is 60min, and the treatment temperature is controlled at 70°C. Wash and dry with tap water;

[0042] (4) The treated aramid fiber and flame-retardant polyester account for 10% of the mass ratio of aramid fiber, and 90% of flame-retardant polyester is used for blend...

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 flame retardant anti-dripping blended fabric and a preparation method of the blended fabric. The blended fabric is formed by blending aramid fiber and flame retardant terylene according to the mass ratio of (8-20): (80-92). The preparation method comprises the pretreatment process of aramid staple fiber and the blending process of the flame retardant terylene, wherein before blending, polar solvent is used for treating the aramid fiber for 60-90min at the temperature controlled within the range of 60-90 DEG C, and the flame retardant terylene is treated by 4-8g / L alkali for 30-90min at the temperature controlled within the range of 50-80 DEG C. Surface treatment is carried out on the aramid fiber and the flame retardant terylene, so that the fiber surface becomes appropriately rough, and blending can be better carried out. The prepared fabric woven by mixed yarn not only has good flame retardant property, but also has good dripping resistance.

Description

technical field [0001] The invention relates to a flame-retardant and anti-dripping blended fabric and a preparation method thereof. Background technique [0002] Due to its excellent performance, polyester fiber is a synthetic fiber with the fastest development, the highest output and the widest application range among all kinds of synthetic fibers. Its fiber textiles are widely used in clothing, curtains, curtains, bedding, interior decoration and various A special material with a wide range of applications and industrial bases. However, polyester fibers are flammable fibers with a limiting oxygen index (LOI) of around 21. With the wide application of fiber fabrics, the potential danger of fire is becoming more and more prominent. In addition, polyester fabrics are easy to form molten droplets when they burn, and molten droplets are easy to bring Secondary injuries including burns, etc., so the flame retardant and anti-droplet modification of polyester fibers has become a...

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): D02G3/04D06M11/38
Inventor 冯新星张建春张华郝新敏来侃马天丁川
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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