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Normal-pressure boiling dyeable biomass polyester fiber and preparation method thereof

A polyester fiber and biomass technology, applied in the field of biomass polyester fiber and its preparation, can solve the problems that biomass fiber cannot achieve normal pressure boiling dyeing characteristics, cannot be continuously produced, and has low production efficiency, so as to promote sustainable development. Development, cost saving, good resilience

Active Publication Date: 2013-03-13
SHANGHAI DEFULUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Invention patent 201210069191.8 discloses that it uses corn-based biomass ethylene glycol developed by Changchun Dacheng Group as raw material, esterifies with terephthalic acid, and then polycondenses to obtain poly-component diol ester of terephthalate (PDT ), which limits the content of other polyols in biomass ethylene glycol, such as propylene glycol, butanediol, and sorbitol, but the biomass fibers produced by it cannot achieve atmospheric pressure boiling dyeing characteristics
Based on the above mechanism, fiber is usually dyed by high-temperature and high-pressure dyeing method, which needs to be carried out in a high-temperature and high-pressure dyeing container with a temperature of 130°C and a pressure of 0.1-0.2 MPa. high cost

Method used

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  • Normal-pressure boiling dyeable biomass polyester fiber and preparation method thereof
  • Normal-pressure boiling dyeable biomass polyester fiber and preparation method thereof
  • Normal-pressure boiling dyeable biomass polyester fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Configure 66wt% terephthalic acid, 28.48wt% biomass ethylene glycol, 1.5wt% biomass 1,2-propanediol, put them into the reactor, increase the pressure, and perform the esterification reaction at a temperature of 225°C and a pressure of 0.4MPa. After cooling, 4wt% of diethylene glycol isophthalate-5-sodium sulfonate (SIPE) and 0.02wt% of potassium fluorotitanate as a catalyst were added for heating and vacuum polycondensation to obtain biomass polyester chips. Completed in batch production facility. The prepared biomass polyester chips are dried, spun on the LHV431 spinning machine, and drafted and spun on the LHV903 combined drafting machine. After drying, spinning, winding, forming, bundling, drawing, crimping, After cutting, the biomass polyester fiber is obtained, and the main control production process parameters are shown in Table 1.

[0024] The control dyeing test is: PET fiber prepared with the same spinning and drawing equipment using conventional production techn...

Embodiment 2

[0029] Dispose 64wt% terephthalic acid, 1.5wt% biomass ethylene glycol, and 32.47wt% biomass 1,2-propanediol, put them into the reactor, increase the pressure, and perform the esterification reaction at a temperature of 220°C and a pressure of 0.6MPa. Add diethylene glycol isophthalate-5-sodium sulfonate (SIPE) 2wt% and catalyst potassium fluorotitanate 0.03wt% to perform heating vacuum polycondensation reaction to obtain biomass polyester chips. The whole reaction is carried out in a batch production unit In the process, the prepared biomass polyester chips are dried, spun on the LHV431 spinning machine, and drafted and spun on the LHV903 combined drafting machine. After drying, spinning, winding, forming, bundling, drawing, After crimping and cutting, the biomass polyester fiber is obtained. The main control production process parameters are shown in Table 2.

[0030] Table 2 The production process parameters of a normal pressure boiling-dyeing biomass polyester fiber

[0031] ...

Embodiment 3

[0035] Prepare 65% by weight of terephthalic acid, 26.4% by weight of biomass ethylene glycol, and 5.58% by weight of biomass 1,2-propanediol, add them to the reactor, increase the pressure, and carry out the esterification reaction at a temperature of 230°C and a pressure of 0.6MPa. Add 3wt% of diethylene glycol isophthalate-5-sodium sulfonate (SIPE) and 0.02wt% of the catalyst potassium fluorotitanate for heating and vacuum polycondensation to obtain biomass polyester chips. The whole reaction is carried out in a batch production unit In the process, the prepared biomass polyester chips are dried, spun on the LHV431 spinning machine, and drafted and spun on the LHV903 combined drafting machine. After drying, spinning, winding, forming, bundling, drawing, After crimping and cutting, the biomass polyester fiber is obtained. The main control production process parameters are shown in Table 3.

[0036] The control dyeing test is: PET fiber prepared with the same spinning and drawin...

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Abstract

The invention discloses a novel normal-pressure boiling dyeable biomass polyester fiber which comprises the following raw materials: 63-68wt% of terephthalic acid, 1.5-33wt% of biomass ethylene glycol, 1.5-33wt% of biomass 1,2-propanediol, 2-8wt% of monomer 5-sodiumsulfa bis-isophthalate (SIPE) and 0.01-0.03wt% of catalyst potassium fluotitanate. A preparation method of the polyester fiber comprises the following steps: performing esterification and polycondensation reaction on the raw materials to obtain a biomass polyester chip; and based on optimal fiber-spinning process parameters, producing to obtain the biomass polyester fiber having a normal-pressure boiling dyeable function. The fiber has the characteristics of natural softness, low static, favorable resilience and low-temperature dyeing, is boiling dyeable under normal pressure, has high dye-uptake rate and dye exhaustion rate, can be blended with a natural fiber such as wool and the like, has the advantages of cost saving, energy consumption reduction and clean production, can reduce the dependence of the chemical fiber industry on petroleum and can greatly relieve resource restriction and environment pressure.

Description

Technical field [0001] The invention relates to a biomass polyester fiber and a preparation method thereof, in particular to a biomass polyester fiber with a normal pressure boiling dyeing function and a preparation method thereof. Background technique [0002] China is the world’s largest producer of chemical fiber. Chemical fiber has developed strongly in recent years. By 2015, chemical fiber production capacity will reach 46 million tons. Chemical fiber accounts for 76% of the total textile fiber processing. However, more than 90% of the chemical fiber industry is currently Growth depends on limited, non-renewable petroleum resources. The raw material for synthetic chemical fiber polyester chips is ethylene glycol. In 2012, the apparent demand for ethylene glycol in China was about 7 million tons. It will consume 70 million tons of crude oil, which is equivalent to the annual output of 1.4 Daqing oil fields. This will undoubtedly bring great risks and instability to the health...

Claims

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Application Information

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IPC IPC(8): D01F6/84C08G63/688C08G63/85D01D1/04D01D5/12
Inventor 陆正辉刘萍孔彩珍陈辉华邱杰峰冯忠耀沈飞杨卫忠
Owner SHANGHAI DEFULUN CHEM FIBER
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