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

A polyester fiber and biomass technology, which is applied in the field of biomass polyester fiber and its preparation, can solve the problems that biomass fiber cannot realize atmospheric pressure boiling dyeing characteristics, cannot be continuously produced, and has high equipment costs, so as to promote sustainable development , cost saving and high dyeing rate

Active Publication Date: 2014-12-17
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 terephthalic acid 66wt%, biomass ethylene glycol 28.48wt%, biomass 1,2-propanediol 1.5wt%, add to the reaction kettle, heat up and maintain pressure, and carry out esterification reaction at a temperature of 225 ° C and a pressure of 0.4 MPa. After cooling, add diethylene glycol isophthalate-5-sodium sulfonate (SIPE) 4wt% and catalyzer potassium fluotitanate 0.02wt% to carry out temperature rise vacuum polycondensation reaction, make biomass polyester chip, whole reaction is in Completed in batch production plant. The prepared biomass polyester chips are dried, spun on the LHV431 type spinning machine, drawn and spun on the LHV903 combined drawing machine, and dried, spun, wound, formed, bundled, drawn, crimped, The biomass polyester fiber is obtained after cutting, and its main control production process parameters are shown in Table 1.

[0024] The control dyeing test is: the PET fiber prepared in the same spinning and drawing equipment using the convention...

Embodiment 2

[0029] Configure 64wt% terephthalic acid, 1.5wt% biomass ethylene glycol, and 32.47wt% biomass 1,2-propanediol, add them to the reactor, heat up and maintain pressure, and carry out 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 Fluotitanate 0.03wt% to carry out temperature rise vacuum polycondensation reaction to make biomass polyester chips, the whole reaction is carried out in a batch production device The prepared biomass polyester chips are dried in the process, spun on the LHV431 type spinning machine, drawn and spun on the LHV903 combined drawing machine, and dried, spun, wound, formed, bundled, drawn, The biomass polyester fiber is obtained after crimping and cutting, and its main control production process parameters are shown in Table 2.

[0030] Table 2 A kind of production process parameter of atmospheric pressure boiling dyeing biomass polyester fi...

Embodiment 3

[0035] Configure terephthalic acid 65wt%, biomass ethylene glycol 26.4wt%, biomass 1,2-propanediol 5.58wt%, add to the reaction kettle, heat up and maintain pressure, and carry out esterification reaction at a temperature of 230 ° C and a pressure of 0.6 MPa. Add diethylene glycol isophthalate-5-sodium sulfonate (SIPE) 3wt% and catalyst potassium fluorotitanate 0.02wt% to carry out temperature-raising vacuum polycondensation reaction to obtain biomass polyester chips, and the whole reaction is carried out in a batch production device The prepared biomass polyester chips are dried in the process, spun on the LHV431 type spinning machine, drawn and spun on the LHV903 combined drawing machine, and dried, spun, wound, formed, bundled, drawn, The biomass polyester fiber is obtained after crimping and cutting, and its main control production process parameters are shown in Table 3.

[0036] The control dyeing test is: using the conventional production process, PET fibers prepared in...

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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 normal pressure boiling dyeing function and a preparation method thereof. Background technique [0002] China is the largest producer of chemical fiber in the world. The development of chemical fiber has been strong in recent years. By 2015, the production capacity of chemical fiber will reach 46 million tons, and the proportion of chemical fiber in the total textile fiber processing will reach 76%. The growth depends on limited and non-renewable petroleum resources. The raw material with the largest demand for synthetic chemical fiber polyester chips is ethylene glycol. In 2012, the apparent demand for ethylene glycol in China was about 7 million tons. If all oil refining is used, It will consume 70 million tons of crude oil, which is equivalent to the annual output of 1.4 Daqing Oilfields. This will undoubtedly bring gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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