CN112981591A - Environment-friendly pollution-free production process of regenerated polyester staple fiber - Google Patents
Environment-friendly pollution-free production process of regenerated polyester staple fiber Download PDFInfo
- Publication number
- CN112981591A CN112981591A CN201911288552.6A CN201911288552A CN112981591A CN 112981591 A CN112981591 A CN 112981591A CN 201911288552 A CN201911288552 A CN 201911288552A CN 112981591 A CN112981591 A CN 112981591A
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- CN
- China
- Prior art keywords
- raw material
- polyester staple
- regenerated polyester
- environment
- production process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/10—Filtering or de-aerating the spinning solution or melt
- D01D1/106—Filtering
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
Abstract
The invention relates to an environment-friendly and pollution-free production process of regenerated polyester staple fibers, which comprises the following steps: s1, preparing a raw material mixed solution, namely heating the raw materials to obtain a molten raw material melt, adding multi-walled carbon nanotubes into the molten raw material melt, and uniformly stirring to obtain a raw material mixed solution; s2, filtering and removing impurities from the raw material mixed liquor; s3, primary drying is carried out on the filtered and impurity-removed raw material solution, and moisture is removed; s4, spinning the raw material solution subjected to primary drying; and S5, cleaning, drying twice and winding the formed spinning to obtain the multi-wall carbon nano tube regenerated polyester staple fiber. The environment-friendly pollution-free production process of the regenerated polyester staple fiber can provide the multi-wall carbon nano tube regenerated polyester staple fiber with good self-supporting performance and strong toughness, has simple process, convenient operation and wide application range, has no pollution in the preparation process, and has good environmental benefit and economic benefit.
Description
Technical Field
The invention relates to the technical field of fiber spinning, in particular to an environment-friendly pollution-free production process of regenerated polyester staple fibers.
Background
The regenerated polyester staple fibers are polyester staple fibers with different lengths formed by using waste polyester bottle chips, spinning waste silk, bubble materials and pulp blocks as raw materials, crushing and cleaning the waste polyester bottle chips, drying a mixture of various materials, carrying out melt extrusion, spinning and other processes. The length of the material is generally 30 to 150mm, and the material has various specifications and belongs to the full utilization of renewable resources. It has wide market prospect due to low cost and good performance.
Specifically, the regenerated polyester staple fibers have various varieties, such as common fibers, hollow fibers, triangular yarns, flame-retardant fibers and the like, and can be applied to the filling industry of furniture and toys, the bedding industry, the clothing industry, the needle cotton industry and the stitch-bonding fabric industry according to requirements.
However, the conventional regenerated polyester staple fibers have poor self-supporting property and toughness, and therefore, a further solution to the above problem needs to be provided.
Disclosure of Invention
The invention aims to provide an environment-friendly and pollution-free production process of regenerated polyester staple fibers.
In order to achieve the aim, the invention provides an environment-friendly pollution-free production process of regenerated polyester staple fibers, which comprises the following steps:
s1, preparing a raw material mixed solution, namely heating the raw materials to obtain a molten raw material melt, adding multi-walled carbon nanotubes into the molten raw material melt, and uniformly stirring to obtain a raw material mixed solution;
s2, filtering and removing impurities from the raw material mixed liquor;
s3, primary drying is carried out on the filtered and impurity-removed raw material solution, and moisture is removed;
s4, spinning the raw material solution subjected to primary drying;
and S5, cleaning, drying twice and winding the formed spinning to obtain the multi-wall carbon nano tube regenerated polyester staple fiber.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fibers, the step S1 further comprises the steps of crushing the provided raw materials and sorting the raw materials through a cyclone separator.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fiber, in step S1, the temperature is raised to 320 ℃.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fiber, in the step S1, the tube diameter of the multi-wall carbon nano tube is 0.6-145nm, and the length is 350nm-0.05 mm.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fibers, in step S2, the raw material mixed liquid is filtered and decontaminated in a screen filtering mode.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fiber, in step S3, primary drying is carried out under the vacuum condition, the vacuum degree is controlled to be lower than 0.05MPa, and the drying temperature is controlled to be 90-140 ℃.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fiber, in step S4, wet spinning is adopted to spin the raw material solution.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fiber, the temperature of the wet spinning is controlled between 265 ℃ and 285 ℃.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fiber, in step S5, deionized water is used for cleaning spinning.
As an improvement of the environment-friendly and pollution-free production process of the regenerated polyester staple fiber, in the step S5, the winding speed is 25-165 m/min.
Compared with the prior art, the invention has the beneficial effects that: the environment-friendly pollution-free production process of the regenerated polyester staple fiber can provide the multi-wall carbon nano tube regenerated polyester staple fiber with good self-supporting performance and strong toughness, has simple process, convenient operation and wide application range, has no pollution in the preparation process, and has good environmental benefit and economic benefit.
Detailed Description
The present invention will now be described in further detail.
The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
The invention relates to an environment-friendly pollution-free production process of regenerated polyester staple fibers, which comprises the following steps:
s1, preparing a raw material mixed solution, namely heating the raw materials to obtain a molten raw material melt, adding multi-walled carbon nanotubes into the molten raw material melt, and uniformly stirring to obtain the raw material mixed solution.
Wherein the step S1 further comprises crushing the provided raw material and sorting the raw material by a cyclone so that the size of the provided raw material meets the requirements of production and preparation. The added multi-wall carbon nano-tube has the preferred tube diameter of 0.6-145nm and the preferred length of 350nm-0.05 mm. When the raw material was heated, the heating temperature was controlled to 320 ℃. + -. 2 ℃.
And S2, filtering and removing impurities from the raw material mixed liquor.
The purpose of filtering and removing impurities of the mixed liquid is to improve the purity of the mixed liquid of the raw materials and ensure the quality of subsequent textile products. Preferably, in step S2, the raw material mixture is filtered by a screen filter.
And S3, carrying out primary drying on the filtered and impurity-removed raw material solution to remove water.
Wherein, primary drying is carried out under the vacuum condition, the vacuum degree is controlled to be lower than 0.05MPa, and the drying temperature is controlled to be 90-140 ℃. The aim of removing water is to ensure thorough drying and simultaneously avoid the formation of bubbles in the subsequent spinning process so as to generate broken filaments or broken ends.
And S4, spinning the raw material solution subjected to primary drying.
Wherein, the raw material solution is preferably spun by wet spinning, and the temperature of the wet spinning is controlled between 265 ℃ and 285 ℃.
And S5, cleaning, drying twice and winding the formed spinning to obtain the multi-wall carbon nano tube regenerated polyester staple fiber.
Wherein the spinning is cleaned with deionized water. Meanwhile, the winding speed is controlled to be 25-165 m/min.
In addition, a test experiment is also carried out on the obtained multi-wall carbon nano tube regenerated polyester staple fiber.
Therefore, the multi-wall carbon nano tube regenerated polyester staple fiber obtained by the production process has good self-supporting performance and strong toughness, the process flow of the invention is simple, the operation is convenient, the application range is wide, no pollution is generated in the preparation process, and the environment benefit and the economic benefit are good.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The environment-friendly pollution-free production process of the regenerated polyester staple fibers is characterized by comprising the following steps of:
s1, preparing a raw material mixed solution, namely heating the raw materials to obtain a molten raw material melt, adding multi-walled carbon nanotubes into the molten raw material melt, and uniformly stirring to obtain a raw material mixed solution;
s2, filtering and removing impurities from the raw material mixed liquor;
s3, primary drying is carried out on the filtered and impurity-removed raw material solution, and moisture is removed;
s4, spinning the raw material solution subjected to primary drying;
and S5, cleaning, drying twice and winding the formed spinning to obtain the multi-wall carbon nano tube regenerated polyester staple fiber.
2. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein the step S1 further comprises crushing the provided raw material and sorting the crushed raw material by a cyclone separator.
3. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein in the step S1, the temperature is raised to 320 ℃.
4. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein in the step S1, the tube diameter of the multi-wall carbon nanotube is 0.6-145nm, and the length is 350nm-0.05 mm.
5. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein in step S2, the raw material mixed solution is filtered to remove impurities by a screen filtering method.
6. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein in the step S3, primary drying is carried out under vacuum condition, the vacuum degree is controlled to be lower than 0.05MPa, and the drying temperature is controlled to be 90-140 ℃.
7. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein in step S4, the raw material solution is spun by wet spinning.
8. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 7, wherein the temperature of the wet spinning is controlled between 265 ℃ and 285 ℃.
9. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein in the step S5, the spun yarn is cleaned by deionized water.
10. The environment-friendly pollution-free production process of the regenerated polyester staple fiber as claimed in claim 1, wherein in the step S5, the winding speed is 25-165 m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288552.6A CN112981591A (en) | 2019-12-12 | 2019-12-12 | Environment-friendly pollution-free production process of regenerated polyester staple fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911288552.6A CN112981591A (en) | 2019-12-12 | 2019-12-12 | Environment-friendly pollution-free production process of regenerated polyester staple fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112981591A true CN112981591A (en) | 2021-06-18 |
Family
ID=76342840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911288552.6A Pending CN112981591A (en) | 2019-12-12 | 2019-12-12 | Environment-friendly pollution-free production process of regenerated polyester staple fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112981591A (en) |
-
2019
- 2019-12-12 CN CN201911288552.6A patent/CN112981591A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210618 |
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| WD01 | Invention patent application deemed withdrawn after publication |