CN113969501A - Preparation method of down-like polyester fiber yarns - Google Patents
Preparation method of down-like polyester fiber yarns Download PDFInfo
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- CN113969501A CN113969501A CN202111561684.9A CN202111561684A CN113969501A CN 113969501 A CN113969501 A CN 113969501A CN 202111561684 A CN202111561684 A CN 202111561684A CN 113969501 A CN113969501 A CN 113969501A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/35—Heterocyclic compounds
- D06M13/355—Heterocyclic compounds having six-membered heterocyclic rings
- D06M13/358—Triazines
- D06M13/364—Cyanuric acid; Isocyanuric acid; Derivatives thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
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Abstract
The invention discloses a preparation method of down-like polyester fiber yarns, which comprises the following steps: s1, spraying a first oiling agent on polyester fiber yarns formed by spinning at normal temperature, and carrying out primary drafting; s2, adding a first oil agent into the oil bath tank, controlling the temperature in the oil bath tank to be kept at 70-75 ℃, adding the polyester fiber yarn obtained in the step S1 into the oil bath tank, fully mixing the polyester fiber yarn with the first oil agent, and performing second drafting after the mixing is finished; s3, placing the polyester fiber yarn obtained in the step S2 into a heating box, heating to 105-115 ℃, and performing a third drafting; s4, curling the polyester fiber yarn obtained in the step S3; s5, putting the polyester fiber yarn obtained in the step S4 into an oil bath, and adding a second oil agent for oiling for the second time; s6, putting the polyester fiber yarn obtained in the step S5 into an oven for drying and shaping, and shearing through a shearing machine to obtain the down-like polyester fiber yarn.
Description
Technical Field
The invention belongs to the technical field of chemical fiber preparation, and particularly relates to a preparation method of down-like polyester fiber yarns.
Background
The natural down feather fiber is a well-known warm-keeping material, is widely applied to the fields of high-grade clothing and cotton wadding, but because the natural down feather fiber is small in quantity and expensive in price, the natural down feather fiber can not meet the increasingly-improved physical living needs of people; the down-like fiber is a novel fiber for wadding developed in the field of synthetic fibers, belongs to a fiber of three-dimensional curled hollow polyester fiber which is finished by organic silicon, can keep warm, has good fluffiness, smooth and soft hand feeling like natural down fiber, can be compared favorably with the natural down fiber in the aspects of fluffiness and compression resilience, is not mildewed and mothproof, has rich resources and is lower in price than the natural fiber.
When the polyester raw material is melted at high temperature and the polyester melt is extruded into a spinneret plate at high pressure, polyester fibers with corresponding diameters can be obtained, and then the polyester fibers are processed into short fibers with various specifications through post treatment. In the subsequent drafting process, the oil solution with proper proportion is applied to the fiber to make the fiber and the oil solution physically combined fully in a certain temperature range, so that the original coarse polyester fiber has the general silky characteristic of down. But the process links are complex, and the cost is increased to a certain extent in the production process, so the price of the polyester fiber is improved in this respect, and the additional value of the fiber is increased.
Disclosure of Invention
Aiming at the problems of easy breakage, rough surface, insufficient smoothness and the like of polyester fibers in the prior art, the invention aims to provide a preparation method of down-like polyester fibers, and in order to achieve the aim, the invention adopts the following technical means:
a preparation method of down-like polyester fiber yarns comprises the following steps:
s1, spraying a first oiling agent for enhancing the strength of polyester fiber yarns onto the polyester fiber yarns formed by spinning at normal temperature, and performing primary drafting;
s2, adding a first oil agent into the oil bath tank, controlling the temperature in the oil bath tank to be kept at 70-75 ℃, adding the polyester fiber yarn obtained in the step S1 into the oil bath tank, fully mixing the polyester fiber yarn with the first oil agent, and performing second drafting after the mixing is finished;
s3, placing the polyester fiber yarn obtained in the step S2 into a heating box, heating to 105-115 ℃, and performing a third drafting;
s4, curling the polyester fiber yarn obtained in the step S3;
s5, putting the polyester fiber yarn obtained in the step S4 into an oil bath, and adding a second oiling agent for softening the polyester fiber yarn for secondary oiling;
s6, putting the polyester fiber yarn obtained in the step S5 into an oven for drying and shaping, and shearing through a shearing machine to obtain the down-like polyester fiber yarn.
Wherein, the specific process of S5 is as follows: and (3) putting the polyester fiber yarns into an oil bath, and adding a second oiling agent to control the temperature to be 98-102 ℃ for second oiling.
Preferably, the first oil agent comprises the following components in parts by weight: 60-80 parts of phenolic epoxy resin, 0.6-0.8 part of polyoxyethylene sorbitan fatty acid ester, 0.8-1.2 parts of span and 3-8 parts of colloidal silicon dioxide.
Preferably, the second oil agent comprises the following components in parts by weight: 10-20 parts of hydroxyl hydrogen-containing silicone oil, 5-8 parts of cyanuric acid and 150 parts of ethyl acetate.
Further preferably, the polyester fiber yarn is 0.9-2.5D polyester fiber yarn.
More preferably, the dosage of the first oiling agent is 20L per ton of polyester fiber yarns.
More preferably, the dosage of the second oiling agent is 14.6L of the second oiling agent added to each ton of polyester fiber yarns.
The invention has the advantages of
Compared with the prior art, the invention has the following beneficial effects:
the invention improves the characteristics of rough surface, insufficient smoothness and the like of the polyester fiber. The elongation at break of the polyester fiber can be effectively reduced through modification of the first oiling agent; by using the second oiling agent, the polyester fiber yarn can have excellent elasticity and smoothness. By oiling twice before and after drafting, the polyester fiber is combined with the oiling agent by utilizing the change of the stress of the polyester fiber in the drafting, so that the oiling agent is firmly attached to the surface of the fiber, and the polyester fiber has the characteristics of good smoothness, no wool sticking and no knotting. The hand feeling and the characteristics of the feather-free environment-friendly down feather are closer to those of animal feathers, the price of the feather-free environment-friendly down feather is only 3-5% of the cost of the down feather, and meanwhile, the feather-free environment-friendly down feather can protect animals and can clean the environment.
Detailed Description
Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentages herein are by weight and the testing and characterization methods used are synchronized with the filing date of the present application. Where applicable, the contents of any patent, patent application, or publication referred to in this application are incorporated herein by reference in their entirety and their equivalent family patents are also incorporated by reference, especially as they disclose definitions relating to synthetic techniques, products and process designs, polymers, comonomers, initiators or catalysts, and the like, in the art. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.
The numerical ranges in this application are approximations, and thus may include values outside of the ranges unless otherwise specified. A numerical range includes all numbers from the lower value to the upper value, in increments of 1 unit, provided that there is a separation of at least 2 units between any lower value and any higher value. For example, if a compositional, physical, or other property (e.g., molecular weight, melt index, etc.) is recited as 100 to 1000, it is intended that all individual values, e.g., 100, 101, 102, etc., and all subranges, e.g., 100 to 166, 155 to 170, 198 to 200, etc., are explicitly recited. For ranges containing a numerical value less than 1 or containing a fraction greater than 1 (e.g., 1.1, 1.5, etc.), then 1 unit is considered appropriate to be 0.0001, 0.001, 0.01, or 0.1. For ranges containing single digit numbers less than 10 (e.g., 1 to 5), 1 unit is typically considered 0.1. These are merely specific examples of what is intended to be expressed and all possible combinations of numerical values between the lowest value and the highest value enumerated are to be considered to be expressly stated in this application.
When used with respect to chemical compounds, the singular includes all isomeric forms and vice versa (e.g., "hexane" includes all isomers of hexane, individually or collectively) unless expressly specified otherwise. In addition, unless explicitly stated otherwise, the use of the terms "a", "an" or "the" are intended to include the plural forms thereof.
The terms "comprising," "including," "having," and derivatives thereof do not exclude the presence of any other component, step or procedure, and are not intended to exclude the presence of other elements, steps or procedures not expressly disclosed herein. To the extent that any doubt is eliminated, all compositions herein containing, including, or having the term "comprise" may contain any additional additive, adjuvant, or compound, unless expressly stated otherwise. Rather, the term "consisting essentially of … …" excludes any other components, steps or processes from the scope of any of the terms hereinafter recited, insofar as such terms are necessary for performance. The term "consisting of … …" does not include any components, steps or processes not specifically described or listed. Unless explicitly stated otherwise, the term "or" refers to the listed individual members or any combination thereof.
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments.
Examples
The following examples are used herein to demonstrate preferred embodiments of the invention. It will be appreciated by those of skill in the art that the techniques disclosed in the examples which follow represent techniques discovered by the inventor to function in the invention, and thus can be considered to constitute preferred modes for its practice. Those of skill in the art should, in light of the present disclosure, appreciate that many changes can be made in the specific embodiments which are disclosed and still obtain a like or similar result without departing from the spirit or scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and the disclosures and references cited herein and the materials to which they refer are incorporated by reference.
Those skilled in the art will recognize, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments of the invention described herein. Such equivalents are intended to be encompassed by the following claims.
The instruments used in the following examples are, unless otherwise specified, laboratory-standard instruments; the test materials used in the following examples were purchased from a conventional biochemical reagent store unless otherwise specified.
Example 1
A preparation method of down-like polyester fiber yarns comprises the following steps:
s1, spraying a first oiling agent added for enhancing the strength of polyester fiber yarns onto 0.9-2.5D polyester fiber yarns formed by spinning at normal temperature, and carrying out primary drafting;
s2, first oil solution is filled in the oil bath tank, the temperature in the oil bath tank is controlled to be kept at 72 ℃, the polyester fiber yarn obtained in the step S1 is added into the oil bath tank, the polyester fiber yarn and the first oil solution are fully mixed, and second drafting is carried out after the mixing is finished; wherein the dosage of the first oiling agent is 20L per ton of polyester fiber.
S3, putting the polyester fiber yarn obtained in the step S2 into a heating box, heating to 110 ℃, and performing a third drafting;
s4, curling the polyester fiber yarn obtained in the step S3;
s5, putting the polyester fiber yarn obtained in the step S4 into an oil bath, adding a second oiling agent for softening the polyester fiber yarn, controlling the temperature to be 100 ℃, adding 14.6L of the second oiling agent into each ton of the polyester fiber yarn, and oiling for the second time;
s6, putting the polyester fiber yarn obtained in the step S5 into an oven for drying and shaping, and shearing through a shearing machine to obtain the down-like polyester fiber yarn.
The first oil agent comprises the following components in parts by weight: 70 parts of phenolic epoxy resin, 0.7 part of polyoxyethylene sorbitan fatty acid ester, 1.0 part of span and 5 parts of colloidal silicon dioxide.
The second oil agent comprises the following components in parts by weight: 15 parts of hydroxyl hydrogen-containing silicone oil, 7 parts of cyanuric acid and 125 parts of ethyl acetate.
Comparative example 1
A preparation method of down-like polyester fiber yarns comprises the following steps:
s1, spraying a first oiling agent on 0.9-2.5D polyester fiber yarns formed by spinning at normal temperature, and performing primary drafting;
s2, adding a first oil agent into the oil bath, controlling the temperature in the oil bath to be kept at 72 ℃, adding the polyester fiber yarn obtained in the step S1 into the oil bath, fully mixing the polyester fiber yarn with the first oil agent, and performing second drafting after the mixing is finished; wherein the dosage of the first oiling agent is 20L per ton of polyester fiber.
S3, putting the polyester fiber yarn obtained in the step S2 into a heating box, heating to 110 ℃, and performing a third drafting;
s4, curling the polyester fiber yarn obtained in the step S3;
s5, putting the polyester fiber yarn obtained in the step S4 into an oil bath, adding a second oiling agent for softening the polyester fiber yarn, controlling the temperature to be 100 ℃, adding 14.6L of the second oiling agent into each ton of the polyester fiber yarn, and oiling for the second time;
s6, putting the polyester fiber yarn obtained in the step S5 into an oven for drying and shaping, and shearing through a shearing machine to obtain the down-like polyester fiber yarn.
The first oil agent comprises the following components in parts by weight: 70 parts of phenolic epoxy resin, 0.7 part of polyoxyethylene sorbitan fatty acid ester, 1.0 part of span and 5 parts of silicon dioxide.
The second oil agent comprises the following components in parts by weight: 15 parts of hydroxyl hydrogen-containing silicone oil, 7 parts of cyanuric acid and 125 parts of ethyl acetate.
Comparative example 2
A preparation method of down-like polyester fiber yarns comprises the following steps:
s1, spraying a first oiling agent on 0.9-2.5D polyester fiber yarns formed by spinning at normal temperature, and performing primary drafting;
s2, adding a first oil agent into the oil bath, controlling the temperature in the oil bath to be kept at 72 ℃, adding the polyester fiber yarn obtained in the step S1 into the oil bath, fully mixing the polyester fiber yarn with the first oil agent, and performing second drafting after the mixing is finished; wherein the dosage of the first oiling agent is 20L per ton of polyester fiber.
S3, putting the polyester fiber yarn obtained in the step S2 into a heating box, heating to 110 ℃, and performing a third drafting;
s4, curling the polyester fiber yarn obtained in the step S3;
s5, putting the polyester fiber yarn obtained in the step S4 into an oil bath, adding a second oiling agent for softening the polyester fiber yarn, controlling the temperature to be 100 ℃, adding 14.6L of the second oiling agent into each ton of the polyester fiber yarn, and oiling for the second time;
s6, putting the polyester fiber yarn obtained in the step S5 into an oven for drying and shaping, and shearing through a shearing machine to obtain the down-like polyester fiber yarn.
The first oil agent comprises the following components in parts by weight: 70 parts of phenolic epoxy resin, 0.7 part of polyoxyethylene sorbitan fatty acid ester, 1.0 part of span and 5 parts of colloidal silicon dioxide.
The second oil agent comprises the following components in parts by weight: 15 parts of hydroxyl hydrogen-containing silicone oil, 7 parts of urea and 125 parts of ethyl acetate.
Comparative example 3
A preparation method of down-like polyester fiber yarns comprises the following steps:
s1, adding an oiling agent into an oil bath, controlling the temperature of the oiling agent in the oil bath at 72 ℃, and adding the polyester fiber yarns formed by spinning for 0.9-2.5D into the oil bath for oiling; wherein 20L of oiling agent is added into each ton of polyester fiber.
S2, carrying out three-pass drafting on the oiled polyester fiber yarn, and heating the polyester fiber yarn in the drafting process, wherein the heating temperature is 160 ℃;
s3, putting the polyester fiber yarns obtained in the step S2 into an oven after curling, controlling the temperature of the oven at 150 ℃, drying for 33min, drying and shaping, and shearing by using shearing machines with different specifications to obtain the down-like yarn polyester fiber yarns with different specifications.
The oil agent comprises the following components in parts by weight: 70 parts of phenolic epoxy resin, 0.7 part of polyoxyethylene sorbitan fatty acid ester, 1.0 part of span and 5 parts of colloidal silicon dioxide.
Comparative example 4
A preparation method of down-like polyester fiber yarns comprises the following steps:
s1, spraying a first oiling agent on 0.9-2.5D polyester fiber yarns formed by spinning at normal temperature, and performing primary drafting;
s2, adding a first oil agent into the oil bath, controlling the temperature in the oil bath to be kept at 72 ℃, adding the polyester fiber yarn obtained in the step S1 into the oil bath, fully mixing the polyester fiber yarn with the first oil agent, and performing second drafting after the mixing is finished; wherein the dosage of the first oiling agent is 20L per ton of polyester fiber.
S3, putting the polyester fiber yarn obtained in the step S2 into a heating box, heating to 110 ℃, and performing a third drafting;
s4, curling the polyester fiber yarn obtained in the step S3;
s5, putting the polyester fiber yarn obtained in the step S4 into an oil bath, adding a second oiling agent for softening the polyester fiber yarn, controlling the temperature to be 100 ℃, adding 14.6L of the second oiling agent into each ton of the polyester fiber yarn, and oiling for the second time;
s6, putting the polyester fiber yarn obtained in the step S5 into an oven for drying and shaping, and shearing through a shearing machine to obtain the down-like polyester fiber yarn.
The first oil agent comprises the following components in parts by weight: 15 parts of hydroxyl hydrogen-containing silicone oil, 7 parts of cyanuric acid and 125 parts of ethyl acetate.
The second oil agent is 147 parts by weight of ethyl acetate.
Comparative example 5
Comparative example 5 is different from example 1 in that the first oil agent of comparative example 5 is EP-4470 parts by weight of epoxy resin, 0.7 part by weight of polyoxyethylene sorbitan fatty acid ester and 5 parts by weight of silica.
Comparative example 6
Comparative example 6 differs from example 1 in that the first and second oil agents of comparative example 6 are both oil agents disclosed in patent CN 106757427A.
Comparative example 7
Commercially purchased Pfimaloft.
The down-like polyester fiber yarns prepared in example 1 and comparative examples 1 to 7 were subjected to performance tests, and the results are shown in table 1:
table 1 results of performance test of down-like polyester fiber yarns prepared in example 1 and comparative examples 1 to 7
| Breaking strength (cN/dtex) | Elongation at Break (%) | Crimping rate (%) | Dry heat shrinkage (%) | Crimp elastic recovery (%) | |
| Example 1 | 4.5 | 45 | 75 | 10.5 | 93 |
| Comparative example 1 | 3.1 | 43 | 60 | 15.3 | 79 |
| Comparative example 2 | 3.9 | 40 | 58 | 14.8 | 62 |
| Comparative example 3 | 2.5 | 10 | 32 | 20.6 | 65 |
| Comparative example 4 | 2.0 | 35 | 43 | 25.3 | 70 |
| Comparative example 5 | 2.6 | 46 | 55 | 23.9 | 63 |
| Comparative example 6 | 1.9 | 50 | 53 | 21.8 | 72 |
| Comparative example 7 | 2.1 | 20 | 50 | 18.3 | 75 |
The invention obviously improves the three-dimensional curling, elasticity and hand feeling of the polyester fiber yarn by oiling the polyester fiber yarn twice.
All documents referred to herein are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention can be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the present invention as defined by the appended claims.
Claims (8)
1. A preparation method of down-like polyester fiber yarns is characterized by comprising the following steps:
s1, spraying a first oiling agent for enhancing the strength of polyester fiber yarns onto the polyester fiber yarns formed by spinning at normal temperature, and performing primary drafting;
s2, adding a first oil agent into the oil bath tank, controlling the temperature in the oil bath tank to be kept at 70-75 ℃, adding the polyester fiber yarn obtained in the step S1 into the oil bath tank, fully mixing the polyester fiber yarn with the first oil agent, and performing second drafting after the mixing is finished;
s3, placing the polyester fiber yarn obtained in the step S2 into a heating box, heating to 105-115 ℃, and performing a third drafting;
s4, curling the polyester fiber yarn obtained in the step S3;
s5, putting the polyester fiber yarn obtained in the step S4 into an oil bath, and adding a second oiling agent for softening the polyester fiber yarn for secondary oiling;
s6, putting the polyester fiber yarn obtained in the step S5 into an oven for drying and shaping, and shearing through a shearing machine to obtain the down-like polyester fiber yarn.
2. The method for preparing the down-like polyester fiber yarn as claimed in claim 1, wherein the S5 comprises the following steps: and (3) putting the polyester fiber yarns into an oil bath, and adding a second oiling agent to control the temperature to be 98-102 ℃ for second oiling.
3. The preparation method of the down-like polyester fiber yarn as claimed in claim 1, wherein the first oil agent comprises the following components by weight: 60-80 parts of phenolic epoxy resin, 0.6-0.8 part of polyoxyethylene sorbitan fatty acid ester, 0.8-1.2 parts of span and 3-8 parts of colloidal silicon dioxide.
4. The preparation method of the down-like polyester fiber yarn as claimed in claim 1, wherein the second oil agent comprises the following components by weight: 10-20 parts of hydroxyl hydrogen-containing silicone oil, 5-8 parts of cyanuric acid and 150 parts of ethyl acetate.
5. The method for preparing the down-like polyester fiber yarn as claimed in claim 1, wherein the polyester fiber yarn is 0.9-2.5D polyester fiber yarn.
6. The method for preparing the down-like polyester fiber yarn as claimed in claim 1, wherein the amount of the first oil agent is 20L per ton of the polyester fiber yarn.
7. The method for preparing the down-like polyester fiber yarn as claimed in claim 1, wherein the amount of the second oil agent is 14.6L per ton of the polyester fiber yarn.
8. The down-like polyester fiber yarn prepared by the method for preparing the down-like polyester fiber yarn according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111561684.9A CN113969501A (en) | 2021-12-20 | 2021-12-20 | Preparation method of down-like polyester fiber yarns |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757427A (en) * | 2016-12-28 | 2017-05-31 | 福建闽瑞环保纤维股份有限公司 | A kind of preparation method of down-like fiber product |
| CN108914235A (en) * | 2018-08-30 | 2018-11-30 | 绍兴美纶化纤有限公司 | A kind of terylene short fiber terylene short fiber production technology |
-
2021
- 2021-12-20 CN CN202111561684.9A patent/CN113969501A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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