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Preparation method for natural cellulose melt-blown non-woven fabric with burning-resistant function

A technology of natural cellulose and melt-blown non-woven fabrics, which can be used in dry-cleaning fiber products, single-component cellulose rayon, fiber processing, etc., and can solve the problems of non-natural degradation of waste and environmental pollution.

Active Publication Date: 2013-09-11
张文波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned non-woven fabrics made of flame-resistant fibers such as polypropylene (PP), polyester (PET), polyethylene (PE) and nylon (Nylon) are all non-degradable fibers, and the waste after use is of course It cannot be degraded naturally, and causes more serious environmental pollution problems

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 for natural cellulose melt-blown non-woven fabric with burning-resistant function
  • Preparation method for natural cellulose melt-blown non-woven fabric with burning-resistant function
  • Preparation method for natural cellulose melt-blown non-woven fabric with burning-resistant function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 (sample numbers D1~D6 and F1~F6 of the present invention):

[0042] Mix wood pulp cellulose with a degree of polymerization of 650 and oxidized methyl marlene (NMMO) solvent to form a slurry, and add different proportions of phenyloxazole (1,3-phenylene-bis 2-oxazoline, BOX) to stabilize Then use a vacuum thin film evaporator to evaporate excess water, heat at 80°C to 120°C, and remove the water to 5% to 13% within 5 minutes to dissolve the cellulose into mucus ( dope), the mucus composition table is shown in the sample numbers D1-D6 in Table 1, and then the mucus is extruded through the spinning nozzle in a meltblown manner (meltbrown) to form cellulose tow, and water mist is sprayed to solidify the cellulose tow After regeneration, the natural cellulose non-woven fabric is made into natural cellulose non-woven fabric by water washing, water needle rolling and drying. Carry out padding, and its rolling liquid rate is 65%~70%, this N-hydroxymethyl-3-(dimet...

Embodiment 2

[0043] Embodiment two (sample numbers D7~D12 and F7~F12 of the present invention):

[0044] Mix wood pulp cellulose with a degree of polymerization of 1050 and methyl marin oxide (NMMO) solvent to form a slurry, and add different proportions of phenyloxazole (1,3-phenylene-bis 2-oxazoline, BOX) to stabilize Then use a vacuum thin film evaporator to evaporate excess water, heat at 80°C to 120°C, and remove the water to 5% to 13% within 5 minutes to dissolve the cellulose into mucus ( dope), the mucus composition table is shown in the sample number D7-D12 in Table 1, and then the mucus is extruded through the spinning port in a meltblown manner (meltbrown) to form cellulose tow, and water mist is sprayed to solidify the cellulose tow After regeneration, the natural cellulose non-woven fabric is made into natural cellulose non-woven fabric by water washing, water needle rolling and drying. Carry out padding, and its rolling liquid rate is 65%~70%, this N-hydroxymethyl-3-(dimetho...

Embodiment 3

[0049] Embodiment three (flame-resistant function test):

[0050] Wood pulp cellulose with a degree of polymerization of 650 and 1050 was mixed with oxidized methyl marin (NMMO) solvent to form a slurry, and phenyloxazole (1,3-phenylene-bis 2-oxazoline, 3-phenylene-bis 2-oxazoline, BOX) stabilizer and anti-polymerization degree decay agent, and then use a vacuum thin film evaporator to evaporate excess water, heat at 80 ° C to 120 ° C, remove water to 5% to 13% within 5 minutes, and then dissolve the cellulose into Mucus (dope), and then the mucus is melt-blown (meltbrown) through the spinning nozzle to form cellulose tow, spray water mist to solidify and regenerate the cellulose tow, and then wash with water, water needle rolling and drying. Make natural cellulose non-woven fabric, this natural cellulose non-woven fabric and N-hydroxymethyl-3-(dimethoxyphosphoryl) propionamide flame retardant are pad-rolled, and its rolling rate is 65%~70% %, the concentration of the N-methy...

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Abstract

The invention relates to a preparation method for a natural cellulose melt-blown non-woven fabric with a burning-resistant function. The preparation method comprises the following steps of: mixing wood pulp with a methyl morpholine oxide solvent to form a pulp solution; removing water by a vacuum film evaporator to form a spinning adhesive solution; extruding the adhesive solution from a spinning hole in a melt-blowing way to form a cellulose tow; solidifying, regenerating, washing by water, rolling by a water needle and drying to prepare a natural cellulose non-woven fabric; carrying out pad-rolling on the natural cellulose non-woven fabric and a burning-resistant agent namely N-hydroxymethyl-3-(dimethoxy phosphoryl) propanamide; drying, baking, neutralizing, soaping, washing by the water and drying in sequence; finally washing by alkali, washing by water, drying and rolling to prepare the natural cellulose non-woven fabric with the long-acting burning-resistant function. According to the preparation method, the natural cellulose non-woven fabric and the burning-resistant agent namely N-hydroxymethyl-3-(dimethoxy phosphoryl) propanamide can produce a special crosslinking reaction in the preparation process, the burning-resistant effect of the natural cellulose melt-blown non-woven fabric completely conforms with the test standards of ASTM (American Society for Testing Material) D6413-1999 and ASTM D2863-1995, and the natural cellulose melt-blown non-woven fabric can be naturally decomposed after being used and thrown away, so that the natural cellulose melt-blown non-woven fabric becomes an environment-friendly material harmless to the natural environment.

Description

technical field [0001] The invention relates to a method for preparing a natural cellulose melt-blown non-woven fabric with a flame-resistant function, which belongs to the technical field of green and environmentally friendly manufacturing of natural fiber non-woven fabrics. It uses N-hydroxymethyl-3-(dimethoxyphos Acyl) propionamide flame retardant and natural cellulose non-woven fabric are padded, dried, baked, neutralized, soaped, washed and dried, so that the active N-methylol and natural cellulose non-woven fabric are cross-linked After reaction, alkali washing, water washing, drying, oiling and coiling, the natural cellulose non-woven fabric with long-lasting flame-resistant function can be made. Background technique [0002] In the current non-woven fabric manufacturing technology, the direct polymer extrusion method (polymer laid, spunlaid) has the advantages of simple production process and high economic benefits. After the molten polymer is extruded and extended t...

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): D06M13/447D04H3/013D01D1/02D01D1/10D01F2/00D01F1/10D06L1/16D06M101/06
Inventor 周文东赖明毅黄坤山
Owner 张文波
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