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Spinning-solution-colored three-dimensional crimped hollow PTT fibers and preparation method thereof

A three-dimensional crimping and dope coloring technology, applied in hollow filament manufacturing, fiber processing, fiber chemical characteristics, etc., can solve problems such as restricting the development and application of PTT fibers, serious product homogeneity, and hard fiber feel, and achieve resilience. Good, soft feel, free from environmental pollution

Pending Publication Date: 2021-04-30
SHANGHAI DEFULUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] PTT is produced by polycondensation reaction of terephthalic acid and 1,3-propanediol. In the past, domestic 1,3-propanediol was basically imported from abroad, which limited the development and application of PTT fiber. With the domestic 1,3-propanediol The improvement of 3-propanediol production technology, the expansion of production capacity and the progress of PTT synthesis technology have conditions for the development of PTT fiber products and their high-value applications
At present, the domestic three-dimensional crimped hollow polyester (PET) fiber dominates, but the fiber feels hard and the homogeneity of the product is serious. Therefore, according to the customer's demand intention, the differences between PTT and polyester (PET) are combined Development of Pigment Properties Solution Colored Three-dimensional Curly Hollow PTT Fiber

Method used

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  • Spinning-solution-colored three-dimensional crimped hollow PTT fibers and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Preparation of blue three-dimensional crimped hollow PTT fibers

[0057] The first step, the preparation of PTT carrier blue masterbatch

[0058] Add 6g of C.I. Pigment Blue 10 powder and 94g of 3-glycidyl etheroxypropyltrimethoxysilane coupling agent powder into the tank of the high-energy nano-impact mill tank by weight percentage 6%:94%, and add Φ8mm zirconia ball mill Medium 114g, the weight ratio of Φ8mm zirconia ball milling medium to the environmental pigment is 95%:5%; stop the ball milling after 2 hours of continuous ball milling, put the powder into the bag through the sieve and tie the bag tightly to obtain the environmental pigment powder; The average particle size of the fiber-grade pigment powder is 0.8-1.0um, and it is 0.4-0.5um after grinding.

[0059] Remove water from the PTT slices with a melting point of 228°C and an intrinsic viscosity of 1.034dl / g and cool them to room temperature, then put them into the tank of a high-energy nano-impact mill, and...

Embodiment 2

[0072] Preparation of yellow three-dimensional crimped hollow PTT fibers

[0073] The first step, the preparation of PTT carrier yellow masterbatch

[0074] Put 5g of Pigment Yellow 138 powder and 95g of 3-glycidyl etheroxypropyltrimethoxysilane coupling agent powder into the tank body of the high-energy nano-impact grinding tank according to the weight percentage of 5%:95%, and add Φ8mm zirconia ball milling medium 114g, the weight ratio of Φ8mm zirconia ball milling medium to environmental pigment is 95%:5%; stop the ball milling after 2 hours of continuous ball milling, put the powder into the bag through the sieve and tie the bag tightly to obtain the environmental pigment powder; fiber The average particle size of the pigment powder is 0.8-1.0um, and it is 0.4-0.5um after grinding, no special instructions are required.

[0075] Remove water from the PTT slices with a melting point of 228°C and an intrinsic viscosity of 1.034dl / g and cool them to room temperature, then pu...

Embodiment 3

[0087] Preparation of green three-dimensional crimped hollow PTT fibers

[0088] The first step, the preparation of PTT carrier yellow masterbatch

[0089] Add 6g of C.I Pigment Green 8 powder and 94g of 3-glycidyl etheroxypropyl trimethoxysilane coupling agent powder into the tank of the high-energy nano-impact mill tank by weight percentage 6%:94%, and add Φ8mm zirconia ball mill Medium 114g, the weight ratio of Φ8mm zirconia ball milling medium to the environmental pigment is 95%:5%; stop the ball milling after 2 hours of continuous ball milling, put the powder into the bag through the sieve and tie the bag tightly to obtain the environmental pigment powder; The average particle size of fiber-grade pigment powder is 0.8-1.0um, and after grinding, it is 0.4-0.5um, no special instructions are required.

[0090] Remove water from the PTT slices with a melting point of 228°C and an intrinsic viscosity of 1.034dl / g and cool them to room temperature, then put them into the tank ...

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Abstract

The invention discloses spinning-solution-colored three-dimensional crimped hollow PTT fibers. The fibers are prepared from the following components in percentage by weight of 4-8% of PTT carrier color master batches and 92-96% of PTT slices, wherein the PTT carrier color master batches are prepared from the following components in percentage by weight of 15-25% of environment-friendly pigment powder and 75-85% of PTT powder; the environment-friendly pigment powder is prepared from the following components in percentage by weight of 4 to 6 percent of environment-friendly pigment and 94 to 96 percent of coupling agent powder; and the PTT powder is prepared from the following components in percentage by weight of PTT slices and calcium stearate powder accounting for 0.01-0.1% of the weight of the PTT slices. The fibers can be used for preparing colored imitation fur, filling materials and the like.

Description

technical field [0001] The invention belongs to the technical field of preparing poly(trimethylene terephthalate) fibers, and in particular relates to a dope-colored three-dimensional crimped hollow PTT fiber and a preparation method thereof. Background technique [0002] PTT and PET (abbreviation of polyethylene terephthalate) belong to homologues. There are rigid benzene rings and flexible methylene groups in the molecular chains of the two and they are connected by ester groups. They are typical rigid and flexible linear systems. macromolecule. But the main difference between the two chemical structures is that there are two methylene groups on the chain link of PET molecular chain, and three methylene groups on the chain link of PTT molecular chain. An odd number of methylene units in this chemical structure will cause an "odd carbon effect" between the molecular chains, so that the benzene ring cannot be in the same plane as the three methylene groups, and the repulsio...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/04D01F1/10D01F1/08D01D5/08D01D5/253D01D5/088D01D5/14D01D10/02
CPCD01F6/92D01F1/04D01F1/10D01F1/08D01D5/08D01D5/253D01D5/088D01D5/14D01D10/02
Inventor 陆育明冯忠耀王缘顾惠琴朱亚宏李东华杨卫忠李忠王佳欢高俊杰
Owner SHANGHAI DEFULUN CHEM FIBER
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