Metod and apparatus for continuously producing clouring polyester

A polymerization equipment and polyester technology, applied in the field of colored polyester manufacturing, can solve the problems of numerous procedures, environmental pollution, high cost, etc., and achieve the effects of uniform dispersion, easy operation and low production cost.

Inactive Publication Date: 2007-08-29
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sending the polyester in solid form to the blend production site requires the polyester to be cooled in the production unit and then optionally pelletized to achieve solidification. This commonly used traditional method b

Method used

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  • Metod and apparatus for continuously producing clouring polyester

Examples

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Example Embodiment

[0017] Example 1

[0018] Use terephthalic acid and ethylene glycol as raw materials for esterification reaction at a temperature of 200-260℃, and then carry out a recondensation reaction at a temperature of 280-300℃ and a vacuum of less than 300Pa to continuously produce poly-p-phenylene with a viscosity of 0.655 Ethylene glycol dicarboxylate (abbreviated as: PET) melt. The polyethylene terephthalate melt in the continuous polymerization equipment 1 is fed through the main pipeline 2 at a rate of 1000 kg / h at a temperature of 220-320°C (for example, 220°C, 240°C, 280°C, 320°C) Co-mixing device 3, while branch pipe 4 feeds polyethylene terephthalate into screw mixer 5, the supply amount is 5kg / h; cyan dye powder (functional particles) (or iron oxide red, medium chrome yellow) , Titanium white or cobalt black, phthalocyanine green, toluidine purple dye) first add dispersant polyethylene glycol (or trimethylolethane, metal stearate, polyvinylpyrrolidone, aluminum titanium composite ...

Example Embodiment

[0019] Example 2: The preparation process is the same as that of Example 1, except that the supply amount of polyester and the amount of pigment in the branch pipe are different (see Table 1), and the amount of cyan dye in the produced colored polyester is 4 wt%.

Example Embodiment

[0020] Example 3: The preparation process is the same as in Example 1, except that the polyester supply in the branch pipe and the amount of pigment are different (see Table 1), and the amount of cyan dye in the produced colored polyester is about 12wt%

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Abstract

The invention discloses a method and device to continuously produce pigmented polyester that includes the following steps: polyester melt passing through main pipeline inputting commixing device; taking crashing and decentralizing process to organic or inorganic powder with auxiliary agent in jet mill; taking commixing process to gain the non-dropping fire resistance property polyester. The invention has the advantages of simple method, reasonable device structure, easy to operate, stable species, low cost, etc.

Description

Technical field: [0001] The invention relates to a method for producing colored polyester. Background technique: [0002] It is known that in order to obtain colored polyester with high added value, people have adopted polyester blending technology or post-spinning dyeing. In the existing technology for producing polyester blends, polyester is sent to the site of producing blends in solid form. The production of the polyester prior to said feeding generally takes place at a remote location from the blend production site and involves chemically bonding the monomeric building blocks into one body. Sending the polyester in solid form to the blend production site requires the polyester to be cooled in the production unit and then optionally pelletized to achieve solidification. This commonly used traditional method brings the following disadvantages: cooling, solidification, pelletizing, Said steps of storage, transport and melting are costly and complicated. Moreover, the re...

Claims

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Application Information

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IPC IPC(8): C08L67/03C08K5/18B29B7/00C08K3/00C08K5/09
Inventor 叶红梅李旭本田圭介
Owner TORAY FIBER RES INST(CHINA) CO LTD
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