CN111286798A

CN111286798A - Preparation method of auxiliary agent bag applied to ultra-black technology

Info

Publication number: CN111286798A
Application number: CN201911200861.3A
Authority: CN
Inventors: 曹欣羊; 汪森军; 杨德佑; 赵江峰; 严忠伟; 项利民; 樊伟良; 李荣光; 胡正华; 王安新; 乔志强
Original assignee: Zhejiang Huaxin Advanced Materials Co ltd
Current assignee: Zhejiang Huaxin Advanced Materials Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-06-16

Abstract

The application discloses a preparation method of an auxiliary agent bag applied to a super-black technology. Belongs to the technical field of polyester fiber production, and the method can prevent flocculation. The preparation method of the auxiliary agent package comprises the following steps: firstly, the method comprises the following steps: selecting 10 parts of coupling agent, 18 parts of first dispersing agent and 8 parts of antioxidant, mixing and stirring to prepare a mixture A; II, secondly: selecting 5 parts of coupling agent, 12 parts of second dispersing agent and 3 parts of antioxidant, mixing and stirring to prepare a mixture B; thirdly, the method comprises the following steps: mixing the mixture A and the mixture B according to the proportion of 1:1 to prepare a mixture C; fourthly, the method comprises the following steps: and mixing the mixture C with the polystearate according to the proportion of 14:11, and stirring to prepare the auxiliary agent bag.

Description

Preparation method of auxiliary agent bag applied to ultra-black technology

Technical Field

The invention relates to the technical field of polyester fiber production, in particular to a preparation method of an auxiliary agent bag applied to an ultra-black technology.

Background

The polyester fiber in the printing and dyeing processing mode has good color blackness but not good color fastness. The black PET fiber produced by the color master batch method has good color fastness, no dyeing wastewater, low energy consumption of system processing and relative ecological environmental protection, but the blackness of the fiber can not be close to or reach the black effect of printing and dyeing processing all the time; meanwhile, the traditional masterbatch method for producing the black silk is also limited by two aspects of technologies: the carbon black for the fiber is limited, and the produced black master batch cannot be greatly improved; the addition of the color master batch during spinning cannot be improved without limit, the spinnability is obviously influenced when the general mixture ratio exceeds 6 percent, and the physical index of the fiber is also influenced.

Disclosure of Invention

The invention provides a preparation method of an auxiliary agent bag which can prevent flocculation and is applied to the ultra-black technology to solve the defects; the addition of the small-particle-size carbon black pigment master batch can cause unstable melt rheological property, reduce fiber forming strength and hardly improve spinning speed. However, too high a viscosity not only affects the flow properties of the melt, but also tends to cause "flocculation" of the carbon black colorant in the spinning melt, which is detrimental to spinning. Therefore, the project prevents the carbon black particles from flocculating due to agglomeration by adding a compound auxiliary agent bag in the spinning process, ensures good melt flow property, and improves the addition proportion of master batches and the spinning speed. The additive package is a viscous liquid prepared by mixing and compounding a plurality of additives such as a coupling agent, a dispersing agent, an antioxidant and the like, takes the multi-element stearate as a solvent, has a certain viscosity and a plurality of functions of lubrication, coupling, dispersion, compatibilization and the like, can be automatically adjusted along with the stop and start of spinning positions on a production line, and is the key of high-proportion addition of the ultra-black spinning. The 'on-line addition' is that the auxiliary agent bags are accurately metered and continuously fed at the screw feeding position on the production line through a program control technology according to the requirements of spinning temperature and spinning speed.

The technical problem is solved by the following technical scheme:

a preparation method of an auxiliary agent bag applied to a super black technology comprises the following steps: firstly, the method comprises the following steps: selecting 10 parts of coupling agent, 18 parts of first dispersing agent and 8 parts of antioxidant, mixing and stirring to prepare a mixture A; II, secondly: selecting 5 parts of coupling agent, 12 parts of second dispersing agent and 3 parts of antioxidant, mixing and stirring to prepare a mixture B; thirdly, the method comprises the following steps: mixing the mixture A and the mixture B according to the proportion of 1:1 to prepare a mixture C; fourthly, the method comprises the following steps: and mixing the mixture C with the polystearate according to the proportion of 14:11, and stirring to prepare the auxiliary agent bag.

Optionally, the first step, the second step and the third step are all prepared at normal temperature.

Alternatively, step four is prepared at a temperature of 40 ℃ to 50 ℃.

Optionally, the coupling agent in step one and step two is Dow Corning silane coupling agent Z-6121.

Optionally, the antioxidant in step one and step two is antioxidant 1010.

Optionally, the first dispersant in the first step is polyether hyperdispersant S-100.

Optionally, the second dispersant in the second step is a multifunctional dispersant YY-5023.

Optionally, the meta-stearate of step four comprises glycerol-stearate, ethylene glycol-stearate.

The invention can achieve the following effects:

the invention provides a preparation method of an auxiliary agent bag applied to a super-black technology, which can prevent flocculation.

Detailed Description

The present invention will now be described more fully hereinafter with reference to specific examples.

Example, a method of making an additive package for use in ultra-black technology, the method comprising the steps of: firstly, the method comprises the following steps: selecting 10 parts of coupling agent, 18 parts of first dispersing agent and 8 parts of antioxidant, mixing and stirring to prepare a mixture A; II, secondly: selecting 5 parts of coupling agent, 12 parts of second dispersing agent and 3 parts of antioxidant, mixing and stirring to prepare a mixture B; thirdly, the method comprises the following steps: mixing the mixture A and the mixture B according to the proportion of 1:1 to prepare a mixture C; fourthly, the method comprises the following steps: and mixing the mixture C with the polystearate according to the proportion of 14:11, and stirring to prepare the auxiliary agent bag.

In this example, step one, step two and step three were all prepared at room temperature. Step four is prepared at a temperature of 40 ℃ to 50 ℃. The coupling agent in the first step and the second step is Dow Corning silane coupling agent Z-6121. The antioxidant in step one and step two is antioxidant 1010. The first dispersant in the first step is polyether hyperdispersant S-100. The second dispersant in the second step is a multifunctional dispersant YY-5023. The meta stearate in step four comprises glycerol stearate, ethylene glycol stearate.

Due to the fact that the rheological property of the melt is unstable due to the addition of the small-particle-size carbon black pigment master batch, the fiber forming strength is reduced, and the spinning speed is difficult to improve, the rheological stability of the spinning melt is ensured through moderate solid-phase tackifying in the slice drying process. However, too high a viscosity not only affects the flow properties of the melt, but also tends to cause "flocculation" of the carbon black colorant in the spinning melt, which is detrimental to spinning. Therefore, the project prevents the carbon black particles from flocculating due to agglomeration by adding a compound auxiliary agent bag in the spinning process, ensures good melt flow property, and improves the addition proportion of master batches and the spinning speed. The additive package is a viscous liquid prepared by mixing and compounding a plurality of additives such as a coupling agent, a dispersing agent, an antioxidant and the like, takes the multi-element stearate as a solvent, has a certain viscosity and a plurality of functions of lubrication, coupling, dispersion, compatibilization and the like, can be automatically adjusted along with the stop and start of spinning positions on a production line, and is the key of high-proportion addition of the ultra-black spinning. The 'on-line addition' is that the auxiliary agent bags are accurately metered and continuously fed at the screw feeding position on the production line through a program control technology according to the requirements of spinning temperature and spinning speed.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents which may be directly or indirectly applied to other related technical fields using the contents of the present specification are included in the scope of the present invention.

Claims

1. A preparation method of an auxiliary agent bag applied to a super black technology is characterized by comprising the following steps:

firstly, the method comprises the following steps: selecting 10 parts of coupling agent, 18 parts of first dispersing agent and 8 parts of antioxidant, mixing and stirring to prepare a mixture A;

II, secondly: selecting 5 parts of coupling agent, 12 parts of second dispersing agent and 3 parts of antioxidant, mixing and stirring to prepare a mixture B;

thirdly, the method comprises the following steps: mixing the mixture A and the mixture B according to the proportion of 1:1 to prepare a mixture C;

fourthly, the method comprises the following steps: and mixing the mixture C with the polystearate according to the proportion of 14:11, and stirring to prepare the auxiliary agent bag.

2. The method for preparing an additive package for use in a super black technology according to claim 1, wherein the first, second and third steps are all prepared at room temperature.

3. The method for preparing an additive package for use in ultra black technology as claimed in claim 1, wherein the fourth step is performed at a temperature of 40 ℃ to 50 ℃.

4. The method of claim 1, wherein the coupling agent used in step one and step two is Dow Corning silane coupling agent Z-6121.

5. The method as claimed in claim 1, wherein the antioxidant in the first and second steps is 1010.

6. The method as claimed in claim 1, wherein the first dispersant in the first step is polyether hyperdispersant S-100.

7. The method for preparing an additive package for ultra black technology according to claim 1, wherein the second dispersant in the second step is a multifunctional dispersant YY-5023.

8. The method as claimed in claim 1, wherein the meta stearate in the fourth step comprises glycerin stearate, ethylene glycol stearate.