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Preparation method of electric welding protective clothing fabric and prepared electric welding protective clothing fabric

A technology for protective clothing and fabrics, applied in textiles and papermaking, fiber types, fiber treatment, etc., can solve the problems of low moisture permeability of fabrics, heat stroke, health injuries of welding workers, etc., to improve fabric strength and flame retardancy, The effect of high infrared reflectivity and good reflective ability

Active Publication Date: 2018-01-19
思迈(威海)新材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the face of the radiant heat released by molten metal, the existing welding protective clothing only uses light colors such as white or beige as reflectors, and the reflection and shielding work for heat rays is very small; it is also difficult to block outdoor electric welding operations under the hot summer sun Incidence of heat rays from the sun
[0007] After the flame-retardant coating is applied to the cotton fabric, the moisture permeability of the fabric is very small. When the human body sweats a lot under high-intensity work, the sweat cannot be dissipated smoothly. The human body poses the risk of heat stroke and leads to a decrease in work efficiency
[0008] In short, the existing electric welding protective clothing has defects in flame retardancy, molten metal defense performance, heat ray shielding performance, electromagnetic shielding performance, sweat-conducting and moisture-permeable performance, etc., and there is a problem that the price is too high when leather or aramid fabric is used , unable to establish effective protection for a large number of welding workers, resulting in health damage to welding workers, and also affecting the efficiency of welding operations

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] The fabric (vinylon acetalization degree wherein is 10%) that is made by 82 weight % cotton fiber and 18 weight % modified vinylon blending, enters padding machine after low-temperature cleaning and dyeing (dyed beige), at 220g / Add 2g / l penetrating agent JFC and 20g / l softener XL-300 to the aqueous solution of tetrakishydroxymethyl phosphorus chloride with a concentration of 1, and carry out two-dipping and two-rolling processing, so that the flame-retardant working liquid can penetrate into the amorphous area of ​​the fiber at the same time Tetrahydroxymethylphosphorus chloride chemically reacts with hydroxyl groups of modified vinylon and cotton fibers, and the application amount of tetrakishydroxymethylphosphorus chloride is 28g / m 2 Fabric; dried at a temperature of 80°C to a moisture content of 18% by weight, then carried out ammonia fumigation at 90°C for 15 minutes under the condition of an ammonia flow rate of 900 liters / minute, and then entered 27% hydrogen pero...

Embodiment 2

[0030] The fabric (wherein the degree of acetalization of vinylon is 24%) made of 80% by weight cotton fiber and 20% by weight modified vinylon blending enters the padding machine after low-temperature cleaning and dyeing (dyed into light blue), at 200g 2g / l penetrating agent JFC and 15g / l softener XL-300 are added to the aqueous solution of tetrakis hydroxymethylphosphorus sulfate at a concentration of 1 / l, and the two dipping and two rolling processes are carried out, so that the flame retardant working liquid can penetrate into the amorphous area of ​​the fiber at the same time Phosphate tetrakis hydroxymethyl sulfate chemically reacts with hydroxyl groups of modified vinylon and cotton fibers, and the application amount of phosphorous tetrakis hydroxymethyl sulfate is 25g / m 2 Fabric; dry at a temperature of 75°C to a moisture content of 16% by weight, then carry out ammonia fumigation at 90°C for 10 minutes at an ammonia flow rate of 700 liters / min, then enter 27% hydrogen ...

Embodiment 3

[0033] The fabric (wherein the acetalization degree of vinylon is 55%) made of 75% by weight cotton fiber and 25% by weight of ordinary vinylon blended, enters the padding machine after low-temperature cleaning and dyeing (dyed into light green), at 200g / l 4g / l penetrating agent JFC and 18g / l softener XL-300 are added to the aqueous solution of tetrakishydroxymethylphosphorus sulfate-urea condensate at a high concentration, and two dipping and two rolling processes are carried out so that the flame retardant working fluid can penetrate into the amorphous fiber At the same time, tetrakis hydroxymethyl phosphorus sulfate-urea condensate reacts with the remaining hydroxyl groups of cotton fiber and ordinary vinylon, and the application amount of tetrakis hydroxymethyl phosphorus sulfate-urea condensate is 35g / m 2 Fabric; dried at a temperature of 80°C to a moisture content of 16% by weight, then carried out ammonia fumigation at 90°C for 12 minutes under the condition of an ammoni...

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Abstract

The invention relates to a preparation method of an electric welding protective clothing fabric and the prepared electric welding protective clothing fabric. The method comprises the following steps:a) cellulose fibers and unmodified vinylon or modified vinylon are provided for blending, and a textile is obtained; b) the textile obtained in step a) is dyed with a dye, and a dyed textile is obtained; c) the dyed textile obtained in step b) is soaked in a tetrahydroxymethyl phosphorus compound aqueous solution, drying, ammonia fumigation and oxidation are performed, and a flame retardant textile is obtained; d) coating composition is applied to the front of the flame retardant textile obtained in step c), then thermally setting is performed, and a front-coated flame retardant textile is obtained, wherein the coating composition contains aqueous polyurethane resin, a crosslinking agent, aluminum hydroxide powder, decabromodiphenyl ethane, antimony trioxide, a penetrant and lignin powder;e) a fluorine-based water repellent is locally applied to the reverse side of the front coated flame retardant textile obtained in step d).

Description

technical field [0001] The invention relates to a preparation method of a fabric for electric welding protective clothing and the prepared fabric for electric welding protective clothing. Background technique [0002] There are nearly 2 million workers engaged in electric welding in my country. Welding workers, especially those who perform upward welding operations in narrow spaces, face physical damage from molten metal. [0003] Existing welding protective clothing fabrics are mainly pure cotton fabrics through flame-retardant finishing, and advanced welding protective clothing also uses leather or aramid fabrics as fabrics, but the price is very expensive. In order to prevent the molten metal produced by the electric welding operation from spilling on the fabric and causing burns to the human body, a square meter weight ≥ 300g / m is usually used 2 , even up to 450g / m 2 heavy fabric. [0004] GB 8965.2-2009 (Protective Clothing, Flame Retardant Protection, Part 2: Weldi...

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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IPC IPC(8): D06M13/282D06M13/44D06M11/60D06M11/50D06M11/38D06M23/16D06M15/564D06M11/45D06M13/08D06M11/47D06M15/01D06M15/256D06M101/06D06M101/24
Inventor 管宝莲吴银施楣梧
Owner 思迈(威海)新材料科技有限公司
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