Polymer for increasing speed for spinning fine-denier filaments in Nisshinbo dry process

A technology of fine denier silk and polymer, which is applied in the manufacture of rayon, textiles and papermaking, mono-component polyamide rayon, etc. The effect of increasing production capacity, increasing concentration and reducing cost

Inactive Publication Date: 2013-07-10
浙江四海氨纶纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps increase productivity by making it faster than traditional methods like spun threads that require more energy or expensive equipment. It also improves stability during fiber formation due to its high molecular weight and low solubility properties.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency with which nylon fibre can be spun into threads without losing its strength or shape during storage.

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

[0021] The polytetramethylene ether glycol in the tank car is transported to the storage tank through a gear pump, and then measured by a mass flow meter, and about 867kg of polytetramethylene ether glycol is transported to the pre-polymerization reactor, and in addition The metering tank measures 4,4'-diphenylmethane diisocyanate, measures 201kg, and sends it to the pre-polymerization reactor, and reacts under the condition of 65°C heat preservation water. After about 100 minutes, the pre-polymerization ends, and the pre-polymerization transferred to the polymerization reactor.

[0022] In the polymerization reactor, the pre-polymer is cooled to about 10°C, and then ethylenediamine 17.34kg, propylenediamine 4.36kg and di-n-butylamine 5.27kg are added dropwise, according to the power curve of the polymerization reactor stirrer to determine the end point of the polymerization reaction. After the reaction was finished, 9.76kg of anti-yellowing agent, 4.80kg of antioxidant and 4...

Embodiment 2

[0024] The polytetramethylene ether glycol in the tank car is transported to the storage tank through a gear pump, and then measured by a mass flow meter, and about 860kg of polytetramethylene ether glycol is transported to the pre-polymerization reactor, and in addition The metering tank measures 4,4'-diphenylmethane diisocyanate, measures 201kg, and sends it to the pre-polymerization reactor, and reacts under the condition of 65°C heat preservation water. After about 100 minutes, the pre-polymerization ends, and the pre-polymerization transferred to the polymerization reactor.

[0025] The prepolymer is cooled to about 10°C in the polymerization reactor, and then ethylenediamine 17.76kg, propylenediamine 4.47kg and di-n-butylamine 4.93kg are added dropwise, according to the power curve of the polymerization reactor stirrer to determine the end point of the polymerization reaction. After the reaction, 9.61kg of anti-yellowing agent, 4.73kg of antioxidant and 4.73kg of light ...

Embodiment 3

[0027] The polytetramethylene ether glycol in the tank car is transported to the storage tank through a gear pump, and then measured by a mass flow meter, and about 863kg of polytetramethylene ether glycol is transported to the pre-polymerization reactor, and in addition The metering tank measures 4,4'-diphenylmethane diisocyanate, measures 201kg, and sends it to the pre-polymerization reactor, and reacts under the condition of 65°C heat preservation water. After about 100 minutes, the pre-polymerization ends, and the pre-polymerization transferred to the polymerization reactor.

[0028] In the polymerization reactor, the pre-polymer is cooled to about 10°C, and then ethylenediamine 17.66kg, propylenediamine 4.44kg and di-n-butylamine 4.70kg are added dropwise, according to the power curve of the polymerization reactor stirrer to determine the end point of the polymerization reaction. After the reaction was finished, 9.64kg of anti-yellowing agent, 4.75kg of antioxidant and 4...

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 relates to a polymer for increasing speed for spinning fine-denier filaments in a Nisshinbo dry process. The polymer comprises the following components in percentage by weight: 23%-24% of polytetramethylene ether glycol, 5.0%-6.5% of 4, 4'-diphenyl-methane-diisocyanate, 0.3%-0.6% of ethylenediamine, 0.1%-0.15% of propane diamine, 0.1%-0.15% of dibutylamine, 68%-70% of dimethylacetamide and 0.5%-0.6% of additive. The polymer for increasing the speed for spinning the fine-denier filaments in the Nisshinbo dry process effectively improves the concentration of polymer liquor under the condition that the viscosity is not changed, provides stable spinning dope for spinning spandex, and is beneficial to improvement of the spinning speed, so that purposes of increasing the production capacity and reducing the cost can be reached.

Description

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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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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Owner 浙江四海氨纶纤维有限公司
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