Manufacture method of native cellulose fiber with flameproof function

A natural cellulose and cellulose technology, applied in the field of fiber production, can solve the problems of personal safety hazards in the home, increase of non-dissolving fiber waste, poor flame resistance, etc.

Active Publication Date: 2013-09-11
ACELON CHEM & FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, all of the above-mentioned flame-resistant fibers are non-dissolving fibers, and the waste after use cannot be naturally degraded and pollutes the environment. Since countries have successively formulated technical regulations on textile flammability, if the products do not meet the requirements of these regulations, they will be blocked. enter the country's market
Therefore, the demand for textiles with flame-retardant properties continues to increase, but at the same time it also leads to a large increase in non-dissolving fiber waste and causes more serious environmental pollution problems
In addition, some flame retardant effects are achieved by adding flame retardants or surface coatings. Although the manufacturing cost is relatively low, the flame retardant effect is relatively poor, which will cause hidden dangers to home or personal safety.

Method used

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  • Manufacture method of native cellulose fiber with flameproof function
  • Manufacture method of native cellulose fiber with flameproof function
  • Manufacture method of native cellulose fiber with flameproof function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 (sample numbers D1~D12 and F1~F12 of the present invention):

[0034] 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 the excess water, heat at 80°C to 120°C, remove the water to 5% to 13% within 5 minutes, and then dissolve the cellulose into mucus (dope). The composition of the mucus is shown in the table As shown in the sample numbers D1 to D12 in Table 1, the viscous liquid is sent to the spinning machine with a metering pump for spinning, extruded through the spinning port by extrusion, and dry-jet wet spinning method (Dry-jet Wet Spinning) After being regenerated in a coagulation bath, washed with water and dried to make natural cellulose fibers, the natural cellulose fibers are padded with N-hydroxymethyl-3-(dimethoxyphosphoryl)p...

Embodiment 2

[0035] Embodiment two (sample numbers D13~D24 and F13~F24 of the present invention):

[0036] 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 the excess water, heat at 80°C to 120°C, remove the water to 5% to 13% within 5 minutes, and then dissolve the cellulose into mucus (dope). The composition of the mucus is shown in the table As shown in the sample numbers D13-D24 in Table 1, the viscous liquid is sent to the spinning machine with a metering pump for spinning, extruded through the spinning port by extrusion, and dry-jet wet spinning method (Dry-jet Wet Spinning) After being regenerated in a coagulation bath, washed with water and dried to make natural cellulose fibers, the natural cellulose fibers are padded with N-hydroxymethyl-3-(dimethoxyphosphoryl)pro...

Embodiment 3

[0041] Embodiment three (flame-resistant function test):

[0042] 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 mixed with phenyloxazole (1,3-phenylene-bis 2-oxazoline, BOX) stabilizer, Then use a vacuum thin film evaporator to evaporate the 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), and then measure the mucus The pump is sent to the spinning machine for spinning, extruded through the spinning port by extrusion, and regenerated in the coagulation bath by dry-jet wet spinning method (Dry-jet Wet Spinning), and then washed and dried to make natural cellulose fibers , the natural cellulose fiber is padded with N-methylol-3-(dimethoxyphosphoryl)propionamide flame retardant, and the squeeze rate is 65% to 70%, and the N-methylol-3 -(Dimethoxyphosphoryl)propionamide flame retardant concentration is 0...

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Abstract

The invention relates to a manufacture method of a native cellulose fiber with a flameproof function. The manufacture method comprises the following steps of: mixing wood pulp with an N-methylmorpholine-N-oxide monohydrate (NMMO) solvent into slurry, removing water by using a vacuum film evaporator to form a spinning viscous solution, extruding the spinning viscous solution from a spinning nozzle by adopting a dry spraying wet type spinning method, regenerating, washing and drying by using a coagulating bath, padding the spinning viscous solution and an N-hydroxymethyl-3-(dimethoxyphosphoryl) propanamide flameproof compound, sequentially carrying out drying, roasting, neutralizing, soaping, washing and drying, and finally, carrying out alkali washing, washing and drying and oiling to manufacture the native cellulose fiber with a long-effect type flameproof function. The native cellulose fiber and the N-hydroxymethyl-3-(dimethoxyphosphoryl) propanamide flameproof compound can generate a special crosslinking reaction in a manufacture process, and the flameproof effect of the native cellulose fiber has the flameproof effect completely according with the testing standards of ASTM (American Society for Testing Material) D6413-1999 and ASTM D2863-1995; meanwhile the native cellulose fiber can be naturally degraded after being discarded, and becomes an environment-friendly material which is harmless to the nature environment.

Description

technical field [0001] The invention relates to a method for preparing natural cellulose fibers with flame-resistant function, which belongs to the technical field of green and environment-friendly fiber manufacturing. The cellulose fiber is padded, dried, baked, neutralized, soaped, washed with water and dried to make the active N-methylol and natural cellulose fiber have a cross-linking reaction, and then through alkali washing, water washing, drying, After oiling and coiling, it can be made into natural cellulose fiber with long-lasting flame-resistant function. Background technique [0002] The flame-resistant fiber production method currently used for fire-proof and flame-resistant fabrics or fabrics is made by uniformly mixing polyacrylonitrile fibers and polyamide fibers mechanically, such as shown in Taiwan Invention No. I248488, or directly with multiple bundles of polyacrylonitrile fibers It is made by rolling traction and heating in the rolling step, as shown in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/10D01F11/02D01F13/02D06M13/447
CPCY02P70/62
Inventor 周文东赖明毅黄坤山
Owner ACELON CHEM & FIBER
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