Preparation process of spiral yarn

A preparation technology, a helical technology, is applied in the field of helical yarn preparation technology, which can solve the problems of limited preparation methods, need for further improvement, and uneven cloth and noodle shadow, and achieve simple and easy operation, reasonable design, uniform shadow effect

Inactive Publication Date: 2020-06-12
绍兴天普纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing PTT / PET helical yarn preparation methods are limited, and the tensile breaking strength and maximum tensile length of the helical fiber yarn prepared by traditional methods need to be further improved, especially the prepared fabric is prone to For defects such as uneven stripe shadow and weft skew, the invention provides a helical yarn prepared by PTT / PET fibers reinforced by carbon fiber intercalated graphene composite materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation process of spiral yarn

Examples

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Effect test

Embodiment 1

[0017] A preparation process of a helical yarn, which is prepared by heat treatment after melt spinning by 8 parts of carbon fiber intercalated graphene composite material, 30 parts of PET fiber, 60 parts of PTT fiber, and 0.8 part of catalyst. The preparation process of the wire includes the following steps:

[0018] Step 1, preparation of carbon fibers: place cellulose nanofibers in a tube furnace, then pass through the protective gas argon, raise the temperature to 250°C at a heating rate of 2°C / min and keep it for 2h, and then heat it up at a heating rate of 5°C / min The heating rate is raised to 600°C and kept for 1 hour. After the carbon fiber synthesis reaction is completed, it is naturally cooled to room temperature under vacuum conditions, and finally the product is taken out to obtain carbon fiber;

[0019] Step 2, preparation of carbon fiber intercalated graphene composite material: dispersing cellulose nanofibers in an aqueous solution to prepare a 1wt% dispersion, ...

Embodiment 2

[0024] A preparation process of a helical yarn, prepared by heat treatment after melt spinning by 10 parts of carbon fiber intercalated graphene composite material, 35 parts of PET fiber, 65 parts of PTT fiber, and 1.2 parts of catalyst, the helical yarn The preparation process of the wire includes the following steps:

[0025] Step 1, preparation of carbon fibers: place cellulose nanofibers in a tube furnace, and then pass in protective gas nitrogen, raise the temperature to 265°C at a heating rate of 3°C / min and keep it for 2 hours, and then raise the temperature at a rate of 8°C / min Raise the temperature to 700°C and keep it warm for 1 hour. After the carbon fiber synthesis reaction is completed, it is naturally cooled to room temperature under vacuum conditions, and finally the product is taken out to obtain carbon fiber;

[0026] Step 2, preparation of carbon fiber intercalated graphene composite material: disperse cellulose nanofibers in an aqueous solution to prepare a ...

Embodiment 3

[0031] A preparation process for a helical yarn, which is prepared from 12 parts of carbon fiber intercalated graphene composite materials, 40 parts of PET fibers, 70 parts of PTT fibers, and 2 parts of catalysts through heat treatment after melt spinning, the helical yarn The preparation process of the wire includes the following steps:

[0032] Step 1, preparation of carbon fibers: place cellulose nanofibers in a tube furnace, then pass through the protective gas argon, raise the temperature to 280°C at a heating rate of 5°C / min and keep it for 1h, and then heat it up at a heating rate of 10°C / min The heating rate is raised to 600°C and kept for 1 hour. After the carbon fiber synthesis reaction is completed, it is naturally cooled to room temperature under vacuum conditions, and finally the product is taken out to obtain carbon fiber;

[0033] Step 2, preparation of carbon fiber intercalated graphene composite material: disperse cellulose nanofibers in aqueous solution to pr...

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Abstract

The invention discloses a preparation process of a spiral yarn. The spiral yarn is prepared from 8-12 parts of a carbon fiber intercalated graphene composite material, 30-40 parts of PET fiber, 60-70parts of PTT fiber and 0.8-2 parts of a catalyst through melt spinning and heating treatment. The preparation process of the spiral yarn specifically comprises the steps of preparation of carbon fibers, preparation of the carbon fiber intercalated graphene composite material, melt extrusion preparation of the spiral yarn and heat treatment of the spiral yarn. The preparation process is reasonablein design, the operation process is simple and feasible, the obtained spiral yarn is PET/PTT fiber reinforced by the carbon fiber intercalated graphene composite material, the crimp rate reaches 48%,a tensile fracture experiment proves that the tensile strength of the spiral yarn is enhanced by 15-20 %, the tensile ratio is increased to 1.6 from 1.2, and the strip shadow property of the cloth face of a fabric prepared by using the spiral yarn product is uniform.

Description

technical field [0001] The invention relates to the technical field of yarns, in particular to a preparation process of helical yarns. Background technique [0002] Fiber products made by melt spinning of two polymers are called bicomponent composite fibers, also known as conjugate or heterogeneous fibers. According to the distribution of the two component materials in the fibers, such fibers can be divided into It is sheath-core type, side-by-side type, mosaic type, matrix-fibril type, polymer hybrid type, etc. These bicomponent composite fibers have special functions that single-component fibers do not have. The two-component composite fiber is the most important. It uses the difference in thermal shrinkage properties of the two components to make the fiber bend away from the fiber axis and present a permanent three-dimensional helical crimp to obtain a curl similar to wool fiber. The crimping of this kind of fiber does not require the deformation processing of ordinary t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F1/10D01D5/22D01D5/08D01D10/02
CPCD01F8/14D01F1/10D01D5/22D01D5/08D01D10/02
Inventor 李成德毛金娣李希尔高春风
Owner 绍兴天普纺织有限公司
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