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Colorful fiber preparation method based on composite spinning technology and fabric prepared by method

A composite spinning and composite fiber technology, which is applied in the directions of adding pigments, fiber treatment, and conjugated synthetic polymer rayon to the spinning solution. Cost and pressure, difficulty in fiber color matching, etc., to achieve rich and lasting colors, promote sustainable development, and promote water saving and environmental protection.

Pending Publication Date: 2021-08-27
QINGDAO UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as many kinds of colored fibers are produced in actual production, as many kinds of masterbatches need to be produced, which virtually increases the inventory cost and pressure of pigments or masterbatches
Second, color matching is difficult. The traditional method is to prepare the masterbatch of the target color first, and then spin
There are following deficiencies in the application dye dyeing process: (1) waste of water resources
Dyeing 1 ton of microfiber requires more than 100 tons of water, and the discharge of dyeing wastewater is large
(2) Large dye consumption
(3) Uneven dyeing
Due to the low solubility of disperse dyes in water, they mainly exist in the form of particles in water. These particles are easy to aggregate under the influence of external factors such as high temperature, resulting in uneven dyeing.
(4) Poor washing fastness
However, it adopts the dyeing method. Although the technical problems of light color and poor color fastness of superfine fiber dyeing can be solved to a certain extent by adding macromolecular dyes, it cannot fundamentally solve the problem.
At the same time, there are still technical problems of large dye consumption and large water consumption.
[0008] In view of this, there is an urgent need for a new microfiber dyeing technology to solve the traditional microfiber dyeing difficulties, uneven dyeing, poor color fastness, high dyeing cost, and difficult color matching of fibers. People have been eager to solve the technical problems. But never succeeded in technical problems

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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  • Colorful fiber preparation method based on composite spinning technology and fabric prepared by method
  • Colorful fiber preparation method based on composite spinning technology and fabric prepared by method
  • Colorful fiber preparation method based on composite spinning technology and fabric prepared by method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like Figure 1-5 Shown, a kind of multicolored fiber preparation method based on composite spinning technology comprises the following steps:

[0037] (1) Preparation of color masterbatch

[0038] (1) Uniformly mix the required pigment with the polymer matrix according to the corresponding weight ratio, and then dry the mixed sample so that the water content of the mixed sample is less than 0.1%. During the drying process, the temperature is set at 80-100°C , the drying time is 20-24h;

[0039] (2), adding the mixed sample obtained in step (1) into a twin-screw extruder to melt, extrude and granulate to prepare a color masterbatch;

[0040] In this example, black masterbatches were prepared under a SHJ-20 twin-screw extruder using copper carbon pigments. Specifically, 20 parts of pigments and 80 parts of PA6 slices were uniformly mixed in a high-speed mixer for 5 minutes, and then the mixed samples were dried at 100°C for 24 hours to make the water content less than ...

Embodiment 2

[0064]The same parts as in Example 1 will not be repeated, and the difference is that the fiber cross-section prepared in this example is orange segment fiber. Wherein, the number of orange segments is 32, and the weight ratio of the two polymers is 20:80. That is to say, the ratio of color A to color B is set to 20:80. The design with different proportions of the two components breaks the balanced fusion between the two colors, and when the two colors are juxtaposed, a new color that is biased towards a high-proportion color will be produced. In this example, color A is red, color B is blue, and the ratio of color A to color B is set to 20:80. When the fiber spun by composite spinning is thin enough to a certain extent, the human eye observes blue Purple.

[0065] The invention carries out color diversification innovation based on the excellent characteristics of synthetic fiber itself, and formulates a dyeing scheme with many colors and a wide range of options by means of ...

Embodiment 3

[0067] The same as Example 2 will not be repeated, the difference is that in this embodiment, the blue-violet orange segment fiber is prepared, and the cross section of the orange segment fiber is composed of a "rice"-shaped skeleton and a sector between the "rice"-shaped skeletons. , so it is also called "rice type" or "skeleton type" orange segmental fiber, which has the advantage of natural skeleton. The color masterbatch includes red masterbatch and blue color masterbatch. The above two kinds of color masterbatches and mutually incompatible high polymers are added to the composite spinning machine for composite spinning. Among them, the above two kinds of color masterbatches are in The percentage by weight of each component of high polymer is 2%. When compound spinning in the composite spinning machine, the red masterbatch and high polymer are mixed to obtain a red high polymer mixture, and the blue color masterbatch and high polymer are mixed to obtain a blue high polymer...

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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Abstract

The invention relates to the technical field of colorful superfine fiber preparation, in particular to a colorful fiber preparation method based on a composite spinning technology. The method comprises the following steps of (1) preparing color master batches; and (2) preparing colorful fibers, and then carrying out multi-phase separation by a physical or chemical treatment process to obtain superfine colorful fibers. The invention also provides a fabric prepared by the preparation method. According to the invention, orange petal composite spinning and a stock solution dyeing technology are combined for the first time, and the colorful fibers are prepared on the basis of the color juxtaposition principle, so that the purpose of spinning infinite types of color fibers by utilizing limited types of color master batches is achieved; and the problems that dyeing is difficult, the dyeing cost is high, pollution is serious and the dyeable color is single in the field of colored fibers at present are solved, meanwhile, the chromaticity of the fibers is accurately controlled, and the problem that the color difference of the fibers among batches is difficult to control during large-batch dyeing is solved. The preparation method disclosed by the invention is simple, environment-friendly, uniform in dyeing, high in color fastness and low in energy consumption.

Description

technical field [0001] The invention relates to the technical field of ultrafine fiber preparation, in particular to a method for preparing colorful fibers based on composite spinning technology and fabrics thereof. Background technique [0002] With the advancement of synthetic fiber technology and industrial development, synthetic fiber, as a new chemical fiber material, has developed rapidly in the past 20 years. "Chemical fiber", especially "polyester" and "nylon" are no longer just durable A synonym for wear and durability, it is also a synonym for "beautiful" and "fashionable". Among them, the progress and development of fiber dyeing technology plays a key role in promoting. [0003] Colored spinning technology has been introduced into my country as early as the 1980s. After 30 years of rapid development, colored spinning has become one of the main varieties of yarns in my country. Color spun yarn is a yarn made by blending two or more colored fibers in a certain pro...

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): D01F8/06D01F8/12D01F8/14D01F1/04D01D5/36D03D15/292D03D15/33D03D15/54D04B1/16D06B3/04
CPCD01F8/06D01F8/12D01F8/14D01F1/04D01D5/36D06B3/04D03D15/292D03D15/33D03D15/54D04B1/16
Inventor 马建伟李磊李晓云金龙升蓝鹏飞白冰
Owner QINGDAO UNIV
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