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Preparation method of antibacterial polyester DTY mother yarn

A technology of mother silk and polyester, which is applied in the field of preparation of antibacterial polyester DTY mother silk, can solve the problems of low energy utilization rate, and achieve the effect of improving energy utilization rate, increasing stirring area, and large stirring area

Active Publication Date: 2020-10-16
浙江金旗新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a preparation method of antibacterial polyester DTY mother silk, which makes the existing preparation method of antibacterial polyester DTY mother silk solve the existing preparation method of antibacterial polyester DTY mother silk, the energy utilization rate is low, and a large amount of Shielding Gas Defects

Method used

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  • Preparation method of antibacterial polyester DTY mother yarn
  • Preparation method of antibacterial polyester DTY mother yarn
  • Preparation method of antibacterial polyester DTY mother yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method for antibacterial polyester DTY mother silk, comprising the steps of:

[0033] 1) Esterification and beating process: Add terephthalic acid, ethylene glycol, anti-ether agent, catalyst and heat stabilizer into the upper beating tank of the beating and esterification kettle, and perform beating at 70-80°C for 40-50 minutes Obtain esterification beating liquid;

[0034] 2) Esterification reaction: after the esterification beating is completed, the esterification beating liquid is introduced into the lower esterification kettle of the beating esterification kettle through the diversion hose, during which the upper beating tank is cooled with cold water, under the protection of helium, During this period, lower the upper beating tank to the bottom, and control the esterification reaction temperature to 235-245°C, the esterification reaction pressure to 0.18-0.20MPa, and the esterification reaction time to 2.0-2.4h. After the reaction, the esterified pro...

Embodiment 2

[0041] The invention discloses a beating esterification kettle (see attached figure 1 , 2 , 3), including: an upper beating tank 1, a lower esterification tank 2 with an opening at the upper end, and a hollow stirring shaft 3 passing through the upper beating tank and the lower esterification tank for introducing helium, and the upper beating tank is fixedly connected Elevator 4, the elevator is used to drive the upper beating tank to rise or fall; a plurality of insertion rods 5 are fixed on the outer wall of the upper beating tank, and a plurality of inserting rods 5 are fixed on the side wall of the upper end of the lower esterification tank. The chute 6 that plunger matches. A suction pipe 7 is inserted into the upper beating tank, and the liquid suction pipe is externally connected with a diversion hose 8, and the end of the diversion hose is connected to the upper part of the lower esterification tank, and the diversion hose is equipped with a suction pipe 8. Oil pump ...

Embodiment 3

[0045] The invention discloses a beating and esterification kettle, which comprises: an upper beating tank, a lower esterification tank with an opening at the upper end, and a hollow stirring shaft passing through the upper beating tank and the lower esterification tank for introducing helium gas. The beating tank is fixedly connected to an elevator, and the elevator is used to drive the upper beating tank to rise or fall; a suction pipe is inserted into the upper beating tank, and the suction pipe is externally connected to a diversion hose, and the end of the diversion hose Connected to the upper part of the lower esterification tank, the diversion hose is equipped with an oil pump; the stirring shaft is externally connected to an external air source through an adapter, the top of the stirring shaft is equipped with a driven wheel, and the upper beating tank is inserted into the lower esterification tank. The upper end of the tank is opened, and the lower esterification tank ...

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Abstract

The invention discloses a preparation method of an antibacterial polyester DTY mother yarn. The preparation method comprises the following steps: 1) esterification pulping process; 2) esterification reaction; after esterification pulping is completed, the esterification pulping liquid is guided into a lower esterification kettle of a pulping esterification kettle through a flow guide hose; an upper pulping tank is cooled with cold water during pulping; under the helium protection, the upper pulping tank is descended to the bottom end during the reaction, the esterification reaction temperatureis controlled to be 235-245 DEG C, the esterification reaction pressure is controlled to be 0.18-0.20 MPa, the esterification reaction time is 2.0-2.4 h, an esterification product is obtained after the reaction is finished, and the esterification product is fed into the upper pulping tank 40-50 min before the esterification reaction is finished; 3) polycondensation reaction; 4) final polycondensation reaction; and 5) preparation of the polyester DTY fiber distribution mother yarn. The lower esterification tank and the upper pulping tank inserted into the lower esterification tank are adopted,heat of the lower esterification tank is used for heating the upper pulping tank, the energy utilization rate is increased, meanwhile, the lower esterification tank is used for compressing the loweresterification tank, high pressure (0.18-0.2 Mpa) is maintained in the lower esterification tank, and use of helium is reduced.

Description

technical field [0001] The invention relates to the technical field of textile production, in particular to a preparation method of antibacterial polyester DTY mother silk. Background technique [0002] The key to the development of the textile industry lies in the development of new products. Products with multi-purpose, high performance and high added value using new technology, new equipment and new technology will become a new development trend. More and more companies have begun to join the ranks of developing new high-tech and differentiated functional chemical fiber products. [0003] Polyester filaments with a monofilament fineness of 10-30D are widely used in civilian applications such as wedding dresses, evening dresses, and warp-knitted fabrics, as well as in industrial printing screens and ribbons. Traditional monofilament production is done through UDY-DT process. This production process cannot meet the market demand. As a result, the domestic polyester mono...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10C08G63/183C08G63/78B01J19/18
CPCD01F6/92D01F1/103C08G63/183C08G63/785B01J19/1862B01J19/1881B01J19/0066B01J19/0053Y02P70/62
Inventor 金桢皓
Owner 浙江金旗新材料科技有限公司