CN110952165A - Skin-core type bionic fiber capable of guiding sweat and quickly drying and preparation method thereof - Google Patents

Skin-core type bionic fiber capable of guiding sweat and quickly drying and preparation method thereof Download PDF

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Publication number
CN110952165A
CN110952165A CN201910957733.7A CN201910957733A CN110952165A CN 110952165 A CN110952165 A CN 110952165A CN 201910957733 A CN201910957733 A CN 201910957733A CN 110952165 A CN110952165 A CN 110952165A
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China
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skin
fiber
core
hydrophilic
master batch
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CN201910957733.7A
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Inventor
刘庆备
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Guangdong Charming Co ltd
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Guangdong Charming Co ltd
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Priority to CN201910957733.7A priority Critical patent/CN110952165A/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41BSHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B17/00Selection of special materials for underwear
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/04Materials specially adapted for outerwear characterised by special function or use
    • A41D31/12Hygroscopic; Water retaining
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/28Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30Conjugate filaments; Spinnerette packs therefor
    • D01D5/34Core-skin structure; Spinnerette packs therefor
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41BSHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B2400/00Functions or special features of shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
    • A41B2400/60Moisture handling or wicking function

Abstract

The invention discloses a skin-core bionic fiber for guiding sweat and quickly drying, which is a short fiber spun by a core layer and a skin layer, wherein the core layer of the skin-core bionic fiber is polyester, and the skin layer of the skin-core bionic fiber comprises a polymer and hydrophilic master batches. The skin-core type bionic fiber with the functions of sweat guiding and quick drying adopts micromolecules with hydrophilic groups and polymers to be uniformly mixed during spinning, so that a hydrophilic agent is uniformly added into the skin layer instead of fiber surface treatment after spinning, and the skin-core type bionic fiber has the advantages of long slow release time, washing resistance, small difference of hydrophilic performance after washing before washing and lasting hydrophilic effect; the adding proportion of the hydrophilic master batch to the economic benefit and the sweat guiding and quick drying is 5%, the wicking height is 165-175mm, the performance difference value is less than or equal to 3% after washing before washing, the water absorption rate is more than or equal to 250%, and the dripping water diffusion time is less than or equal to 3 seconds.

Description

Skin-core type bionic fiber capable of guiding sweat and quickly drying and preparation method thereof
Technical Field
The invention belongs to the technical field of chemical fiber spinning, and particularly relates to a skin-core type bionic fiber capable of guiding sweat and quickly drying and a preparation method thereof.
Background
In recent years, requirements of people on comfortableness, health, safety, environmental protection and the like of the garment fabric are higher and higher, along with the increase of outdoor activity time of people, the trend that the casual wear and the sportswear are mutually permeated and integrated is gradually enlarged, the casual wear is deeply loved by consumers, the fabric of the garment has good comfortableness, and even if sweat is flowing down to the back when the casual activity is carried out, the garment can not be stuck on the body to generate cold and wet feeling, so new requirements of moisture absorption and sweat releasing functions are provided for fibers of the fabric.
The natural fiber material takes cotton as an example, the moisture absorption performance is good, the wearing is comfortable, however, because the hollow structure in the cotton fiber enables the cotton fiber to be like a thin suction pipe, water molecules can be absorbed into the cotton fiber through the capillary effect, meanwhile, the hollow structure also leaves a sufficient storage space for the water molecules, the moisture absorption performance is improved, a large amount of moisture is absorbed, the volatilization is required to be carried out for a longer time, and therefore, the cotton clothes are generally slower than the chemical fiber clothes. When the sweat amount of a person is slightly large, the cotton fiber can be expanded due to moisture absorption, the air transportation performance of the cotton fiber is reduced, the cotton fiber is stuck on the skin, and meanwhile, the moisture dispersion speed is slow, so that the cold and wet feeling is brought to the person. Synthetic fibers have long played an important role in satisfying the increasing society of clothing, and for example, polyester fibers have low water absorption and poor moisture permeability, are liable to cause entanglement during wearing due to static electricity accumulation, and are liable to cause stuffiness during activities. Since the industrialization of terylene, the research on the modification of terylene has never been interrupted, and certainly, the improvement of the water absorption and moisture permeability of terylene is the most concerned research and development direction of terylene production and scientific research departments in various countries.
Some moisture absorption and sweat releasing functional fibers adopt a fiber section special-shaped design, a high-special-shaped degree four-channel fiber section structure and a fluffy yarn structure, so that the capillary action of the yarn is increased, and the fabric can quickly absorb water, transport water, diffuse and volatilize due to the wicking action of capillary channels on the fibers or among the fibers, thereby keeping the skin of a human body dry and comfortable. Meanwhile, the polyester fiber does not fall down like cotton fiber in a wet state, so that the microclimate state between the fabric and the skin can be always kept, and the aim of improving the comfort and dryness is fulfilled. In developing hygroscopic fibers, U.S. dupont, korea and monarch corporation, such as Coolmax fiber from U.S. dupont, began earlier and received corresponding patents. At present, some chemical fiber manufacturers in taiwan also successively develop special-shaped polyester fibers with moisture absorption and sweat releasing functions, such as Topcool fiber of the far east textile company, Coolplus fiber of the zhongxing textile company, and the like. They all increase the capillary action by shaping the cross section of the fiber, so that the fabric has dry and comfortable sweat-guiding performance due to the wicking action of the capillary channels on the fiber or among the fibers. However, the fibers are filaments, the fabric product is not fluffy enough, the hand feeling is rough, and the key is that the two performances of quick absorption and quick drying are difficult to meet at the same time. More importantly, the fibers are all terylene which belongs to ester polymers and only contains alkyl and ester groups, and the two are typical hydrophobic groups which are not hydrophilic, and attempt to form a capillary phenomenon through grooves on the surfaces of the fibers to promote moisture absorption and sweat conduction, so the fibers are not communicated in principle (see a schematic diagram 1, wherein glass is hydrophilic, the liquid level in a glass tubule is higher than the horizontal plane, wax is hydrophobic, and the liquid level in a wax tubule is lower than the horizontal plane). Previous studies by the applicant have found that if the surface of the fibres is water repellent, the fabric will be less hydrophilic and will not sweat due to capillary phenomena. At present, most of the sweat guiding effect of the sweat guiding quick-drying fabric on the market is solved by the surface post-treatment agent, but the effect duration of the surface treatment agent is short.
Disclosure of Invention
Based on the problem that the existing chemical fiber fabric is difficult to simultaneously meet two performances of quick absorption and quick drying, the invention develops a special functional fiber for processing a single-direction sweat-absorbent quick-drying fabric, can well solve two problems of non-sweat absorption of a common chemical fiber fabric and slow drying of a cotton fabric, and has the characteristics of soft hand feeling and comfortable wearing.
The invention aims to provide a bionic special fiber for guiding sweat and quickly drying, which is characterized in that firstly, the inner layer of a cloth close to the skin absorbs moisture and guides sweat, and the sweat is dredged from the surface of the skin to the outer layer of the cloth, so that the skin is kept dry and comfortable, and the problem of no sweat absorption is solved; meanwhile, a layer of dry and comfortable special fibers is arranged between the skin and the dry and slow cotton, so that sweat on the outer layer of the clothes does not contact the skin, and a human body does not feel uncomfortable. The moisture absorption and sweat conduction performance of the special fiber is properly controlled, so that the moisture absorption performance of the outer layer material is stronger than that of the bionic special fiber, and a one-way sweat conduction function is formed.
In order to achieve the purpose, the invention adopts the technical scheme that:
the skin-core type bionic fiber for guiding sweat and quickly drying comprises the following components in parts by mass: 30-65 of short fiber obtained by spinning a skin layer and a core layer, wherein the core layer is made of polyester, and the skin layer comprises polymer and hydrophilic master batch.
Preferably, the mass ratio of the skin layer to the core layer is 45-65: 30-55.
The bionic arbor skin-core structure has the advantages that the skin layer such as bark absorbs moisture and conducts sweat; the core layer is a tree core, physical and mechanical properties are enhanced, meanwhile, the core layer does not absorb sweat, and the rapid drying of the fiber is guaranteed (see a schematic diagram 2, wherein the skin layer components are hydrophilic, sweat-conducting, soft and soft, and the core layer does not absorb water, store water and enhance the degree). The cortex can properly adjust the adding proportion of the hydrophilic master batch according to the use requirement so as to control the hydrophilic performance of the cortex and handle the contradiction between good water absorption and quick drying. The leather layer is hydrophilic, so that the cloth can absorb moisture and guide sweat quickly, but the hydrophilicity is only limited to the leather layer, so that the water absorption capacity is effectively controlled; the core layer does not absorb water, so the quick-drying effect is achieved, otherwise, if the core layer absorbs water, the water absorption amount is increased, more time is naturally needed for vaporization, the drying time is prolonged, and the quick-drying effect cannot be achieved.
The invention adopts polyester fiber (terylene) as a core layer, and the polyester fiber has the following characteristics:
(1) the strength is high, the strength of the short fiber is 2.6-5.7cN/dtex, the strength of the high-strength fiber is 5.6-8.0cN/dtex, and the impact strength is 4 times higher than that of chinlon;
(2) the elasticity is good, the elasticity is close to wool, when the elongation is 5% -6%, the fabric can be almost completely recovered, the wrinkle resistance exceeds that of other fibers, namely the fabric is not creased, the dimensional stability is good, the elastic modulus is 22-141cN/dtex, and is 2-3 times higher than that of chinlon, so that the fabric is firm and durable, and is wrinkle-resistant and easy-care;
(3) the melting point of the terylene is higher, and the specific heat capacity and the heat conductivity are both smaller, so that the heat resistance and the heat insulation of the terylene fiber are both higher, and the terylene fiber is the best of synthetic fibers;
(4) the polyester fiber also has better wear resistance, light resistance and corrosion resistance than other natural fibers and synthetic fibers;
(5) the terylene has poor moisture absorption, is easy to dry after washing, has basically the same wet strength as dry strength due to low moisture absorption, is not easy to deform and has good washing and wearing performance.
Preferably, the polymer component is one or more of Polyethylene (PE), Polyamide (PA), Polyester (PET), polypropylene (PP) and polyacrylonitrile. More preferably, the polymer component is Polyethylene (PE) or Polyamide (PA).
Preferably, the polyester is one or more of polyethylene terephthalate, polytrimethylene terephthalate and polybutylene terephthalate.
Preferably, the hydrophilic master batch is one or more of polypropylene hydrophilic master batch, polyethylene hydrophilic master batch and polyamide hydrophilic master batch. More preferably, the hydrophilic master batch is polyethylene hydrophilic master batch. Specifically, the polypropylene hydrophilic master batch and the polyamide hydrophilic master batch are purchased from state crane chemical fiber limited company in Ningbo city; the polyethylene hydrophilic master batch is DHSG-01 produced by Guangdong colorful limited shares.
Preferably, the hydrophilic master batch contains hydrophilic groups, and the hydrophilic groups comprise one or more of hydroxyl, amide, carboxyl and amino. The use of chemical fiber products in areas where high moisture or water absorption is required is limited due to their hydrophobic nature. The modified chemical fiber fabric has the advantages of good hygroscopicity of natural fibers and comfortable wearing, and can thoroughly solve the defect that the clothes cling to the body and feel wet and cold due to the fact that the natural fibers have large perspiration amount.
Preferably, the mass of the hydrophilic master batch accounts for 0.5-20 wt% of the mass of the polymer.
More preferably, the mass of the hydrophilic master batch accounts for 2-15 wt% of the mass of the polymer. Further preferably, the mass of the hydrophilic master batch particles accounts for 2-10 wt% of the mass of the polymer. Still more preferably, the mass of the hydrophilic master batch accounts for 2-5 wt% of the mass of the polymer. The hydrophilic master batch is adopted to carry out hydrophilic moisture absorption modification on the cortical fiber. The hydrophilic master batch is made of composite high water absorption materials, comprises carrier resin and other hydrophilic materials, has excellent hydrophilicity, is safe and non-toxic, has good dispersibility, does not hurt the skin, can realize the process of replacing hydrophilic post treatment in fiber by adding the hydrophilic master batch, and can ensure that the product keeps permanent hydrophilicity. The hydrophilic master batch can endow the fiber with high-efficiency permanent hydrophilic performance and good water permeability, and keeps the characteristics of original mechanical and physical properties, strength, surface smoothness, difficult fluffing and pilling, difficult fiber peeling and good air permeability of the product, and meanwhile, the hydrophilic master batch hardly has any influence on the spinning process.
Preferably, the skin layer further comprises one or more of color master batches, softening master batches and antibacterial master batches. More preferably, the total mass of the color master batch, the softening master batch and the antibacterial master batch accounts for 0-5 wt% of the mass of the polymer. The color master batch, the soft master batch and the antibacterial master batch are all commercially available products.
The invention also provides a preparation method of the skin-core bionic fiber for guiding sweat and quickly drying, which comprises the following steps:
(1) slicing and blending the polymer and the hydrophilic master batch to obtain a skin layer mixture;
(2) melting the obtained skin layer mixture and polyester, and performing spinning to obtain a skin-core type bionic fiber semi-finished product;
(3) and stretching, curling and heat setting the obtained skin-core type bionic fiber semi-finished product to obtain the skin-core type bionic fiber with sweat guiding and quick drying functions.
Preferably, the polymer component is one or more of polyethylene, polyamide, polyester, polypropylene and polyacrylonitrile. More preferably, the polyester is one or more of polyethylene terephthalate, polytrimethylene terephthalate and polybutylene terephthalate.
Preferably, the mass of the hydrophilic master batch is 0.5-20 wt% of the mass of the polymer. More preferably, the mass of the hydrophilic master batch is 2-15 wt% of the mass of the polymer. Further preferably, the mass of the hydrophilic master batch is 2-10 wt% of the mass of the polymer. Still more preferably, the mass of the hydrophilic master batch is 2-5 wt% of the mass of the polymer.
Preferably, the polymer is blended with the hydrophilic master batch and one or more slices of the color master batch, the softening master batch and the antibacterial master batch to obtain the skin layer mixture. More preferably, the total mass of the color master batch, the softening master batch and the antibacterial master batch is 0-5 wt% of the mass of the polymer
Preferably, the mass ratio of the skin layer mixture to the polyester is 35-70: 30-65.
Preferably, the obtained skin layer mixture and polyester are melted by a spinning coating device (CN 209368400U) and are subjected to spinning to obtain a skin-core type bionic fiber semi-finished product.
Utility model CN 209368400U discloses a spinning coating device, and it has following beneficial effect: the core material distribution groove and the skin material distribution groove are arranged on the distribution plate in a combined mode, the core material and the skin material are further distributed through the core material distribution groove and the skin material distribution groove, only one circle of skin material straight hole and one circle of core material inclined hole are required to be formed, and a circle of core material flow channel is not required to be formed in each of the inner layer and the outer layer, so that the manufacturing flow and period are greatly reduced, and the manufacturing efficiency is improved; and through mutually independent and interval crossing arrangement with core material distributing groove and cladding material distributing groove, can flow in the diffuse flow groove around each group of spinneret orifice more evenly cladding material fuse-element to skin material coating's uniformity in the spinning has been improved, and then has promoted the spinning quality.
Preferably, the stretching comprises hot water stretching and/or steam stretching. And stretching the obtained core-skin type bionic fiber semi-finished product to 5-8 times of the original length by stretching.
Preferably, the hot water stretching temperature is 70-100 ℃, and the steam stretching temperature is 110-130 ℃.
Preferably, the heat-setting temperature is 80-90 ℃.
The preparation method of the core-skin type bionic fiber ensures that the hydrophilic agent with hydrophilic groups is uniformly added into the skin layer, ensures the lasting hydrophilicity of the fiber skin layer, and is different from the prior hydrophilic oil agent treatment technology of common textiles, and the hydrophilic oil agent treated by the technology of the latter is not washable and is easy to lose efficacy.
Specifically, the preparation method of the skin-core type bionic fiber with sweat guiding and quick drying functions comprises the following steps:
(1) slicing and blending a polymer and hydrophilic master batch accounting for 0.5-20 wt% of the polymer, and color master batch, soft master batch and antibacterial master batch (the color master batch, the soft master batch and the antibacterial master batch accounting for 0-5 wt% of the polymer) to obtain a skin layer mixture;
(2) melting the obtained skin layer mixture and polyester (the mass ratio is 35-70: 30-65), and spinning to obtain a skin-core type bionic fiber semi-finished product;
(3) and (3) carrying out hot water stretching at 70-100 ℃, steam stretching at 110-130 ℃, curling and heat setting at 80-90 ℃ on the obtained core-skin type bionic fiber semi-finished product to obtain the sweat-guiding quick-drying core-skin type bionic fiber.
More specifically, the preparation method of the skin-core type bionic fiber with sweat guiding and quick drying functions comprises the following steps:
(1) slicing and blending polyethylene, polyethylene hydrophilic master batch accounting for 5 wt% of polyethylene, and color master batch, soft master batch and antibacterial master batch (the color master batch, the soft master batch and the antibacterial master batch account for 2.7 wt% of polymer) to obtain a skin layer mixture;
(2) melting the obtained cortex mixture and polyethylene glycol terephthalate (mass ratio is 50: 50) by a spinning coating device (CN 209368400U), and performing spinning to obtain a skin-core type bionic fiber semi-finished product;
(3) and sequentially carrying out hot water stretching at 80 ℃, steam stretching at 120 ℃, curling and heat setting at 85 ℃ on the obtained skin-core type bionic fiber semi-finished product to obtain the skin-core type bionic fiber with sweat guiding and quick drying functions.
The invention also provides application of the skin-core type bionic fiber for guiding sweat and quickly drying, and the skin-core type bionic fiber for guiding sweat and quickly drying is adopted as an inner layer, and natural fiber is adopted as an outer layer to be compositely woven into double-layer or multi-layer fabrics, fabrics or clothes. Preferably, the natural fiber comprises one or more of cotton, hemp, wool, silk and asbestos. The double-layer or multi-layer fabric, fabric or garment which is formed by compositely spinning the skin-core type bionic fiber as the inner layer and the natural fiber as the outer layer has the characteristics of hydrophilicity sweat conductivity, single sweat conductivity and quick drying.
At present, the textile and clothing industry in China has low-end goods which are seriously more than the demand, and the periodic and structural excess of production energy exists in partial fields. The effective supply of medium and high-end products is insufficient, and the high-end market is occupied by international famous brands. The low cost contention mode is difficult to relay. The method needs to enhance innovation and improve the development capability of textile and clothing products. The invention takes market demand as guidance, develops mature industrial cluster and research and development advantages, solves the defects of 'non-sweat-absorbing' of chemical fiber cloth and 'slow drying' of cotton cloth, develops a new bionic fiber variety, has hydrophilic and sweat-conducting properties on the fiber surface layer, does not absorb water or store water on the high-strength core layer, dries quickly and has soft hand feeling. Through the textile structure design, the unidirectional sweat-conducting quick-drying fabric is developed. The successful development and application of the project endow the fiber with new functions, and have wide application markets in the aspects of infant clothes, sportswear, jeans and the like.
The skin-core type composite fiber staple fiber which is originally created in the project and has the advantages and the characteristics that:
(1) the bionic arbor skin-core structure has the advantages that the skin layer such as bark is hydrophilic, and can absorb moisture and guide sweat; the core layer is like the tree core, strengthens physical and mechanical properties, and the core layer is not sweat-absorbing simultaneously, ensures that the fibre can the rapid-curing cutback. The cortex can properly adjust the adding proportion of the hydrophilic master batch according to the use requirement so as to control the hydrophilic performance of the cortex and handle the contradiction between good water absorption and quick drying.
(2) The skin-core type bionic fiber with the functions of sweat guiding and quick drying adopts micromolecules with hydrophilic groups and polymers to be uniformly mixed during spinning, so that a hydrophilic agent is uniformly added into the skin layer instead of fiber surface treatment after spinning, and the skin-core type bionic fiber has the advantages of long slow release time, washing resistance, small difference of hydrophilic performance after washing before washing and lasting hydrophilic effect; the addition proportion of the hydrophilic master batch with economic benefit and sweat-guiding and quick-drying is 5%, the wicking height is 165-175mm, the hydrophilic performance difference is less than or equal to 3% before washing, the water absorption is more than or equal to 250%, and the dripping water diffusion time is less than or equal to 3 seconds.
(3) The skin-core type bionic fiber capable of guiding sweat and quickly drying is soft and close to skin, absorbs moisture and guides sweat, is quick-drying, heavy in moisture prevention, cold in moisture prevention, free from yellowing and antibacterial. The fabric is applied to the textile industry, is used for processing moisture-absorbing sweat-releasing quick-drying fabric, and is applied to cleaning cloth, children clothes, school uniforms, sportswear, casual clothes and the like;
drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic representation of capillary phenomenon in glass (hydrophilic) and wax (hydrophobic) tubules.
FIG. 2 is a schematic view of the structure of the skin-core type bionic fiber for guiding sweat and drying rapidly.
Detailed Description
For better explanation of the present invention, the following specific examples are further illustrated, but the present invention is not limited to the specific examples.
Example 1
A preparation method of a skin-core bionic fiber for guiding sweat and quickly drying comprises the following steps:
(1) polyamide and polyamide hydrophilic master batch slices accounting for 0.5 wt% of the polyamide are mixed to obtain a skin layer mixture;
(2) melting the obtained cortex mixture and polyethylene glycol terephthalate (mass ratio is 55: 45) by a spinning coating device (CN 209368400U), and performing spinning to obtain a skin-core type bionic fiber semi-finished product;
(3) and sequentially carrying out hot water stretching at 70 ℃, steam stretching at 125 ℃, curling and heat setting at 80 ℃ on the obtained skin-core type bionic fiber semi-finished product to obtain the skin-core type bionic fiber with sweat guiding and quick drying functions.
Example 2
A preparation method of a skin-core bionic fiber for guiding sweat and quickly drying comprises the following steps:
(1) polyamide and polyamide hydrophilic master batch slices accounting for 2 wt% of the polyamide are mixed to obtain a skin layer mixture;
(2) melting the obtained cortex mixture and polyethylene glycol terephthalate (mass ratio is 45: 55) by a spinning coating device (CN 209368400U), and performing spinning to obtain a skin-core type bionic fiber semi-finished product;
(3) and sequentially carrying out hot water stretching at 90 ℃, steam stretching at 130 ℃, curling and heat setting at 90 ℃ on the obtained skin-core type bionic fiber semi-finished product to obtain the skin-core type bionic fiber with sweat guiding and quick drying functions.
Example 3
A preparation method of a skin-core bionic fiber for guiding sweat and quickly drying comprises the following steps:
(1) blending polyethylene and polyethylene hydrophilic master batch slices accounting for 5 wt% of the polyethylene to obtain a skin layer mixture;
(2) melting the obtained cortex mixture and polyethylene glycol terephthalate (mass ratio is 50: 50) by a spinning coating device (CN 209368400U), and performing spinning to obtain a skin-core type bionic fiber semi-finished product;
(3) and sequentially carrying out hot water stretching at 80 ℃, steam stretching at 120 ℃, curling and heat setting at 80 ℃ on the obtained skin-core type bionic fiber semi-finished product to obtain the skin-core type bionic fiber with sweat guiding and quick drying functions.
Example 4
A preparation method of a skin-core bionic fiber for guiding sweat and quickly drying comprises the following steps:
(1) blending polyethylene and polyethylene hydrophilic master batch slices accounting for 10 wt% of the polyethylene to obtain a skin layer mixture;
(2) melting the obtained cortex mixture and polyethylene glycol terephthalate (mass ratio is 50: 50) by a spinning coating device (CN 209368400U), and performing spinning to obtain a skin-core type bionic fiber semi-finished product;
(3) and sequentially carrying out hot water stretching at 80 ℃, steam stretching at 120 ℃, curling and heat setting at 80 ℃ on the obtained skin-core type bionic fiber semi-finished product to obtain the skin-core type bionic fiber with sweat guiding and quick drying functions.
Comparative example 1
The preparation method of the skin-core type bionic fiber is similar to the preparation method of the embodiment 3, but the hydrophilic master batch is not added in the skin layer, namely the skin-core type bionic fiber is not modified by the hydrophilic master batch.
The skin-core type bionic fiber in the comparative example 1 and the skin-core type bionic fiber in the examples 1 to 4 for sweat guiding and quick drying are compared in the addition ratio and the performance of the skin-layer hydrophilic master batch, wherein the wicking height is detected according to FZ/T01071-. The results are shown in Table 1.
TABLE 1 proportion of hydrophilic master batch added and Performance comparison
As can be seen from the performance comparison data in Table 1, compared with comparative example 1, the wicking height and the water absorption of examples 1-4 are obviously improved, the water drop diffusion time is obviously reduced, the difference of the hydrophilic performance after washing is small, which indicates that the hydrophilic effect is durable, wherein the adding proportion of the economic benefit of the hydrophilic master batch and the sweat-guiding quick drying is 5%, the wicking height is 165-175mm, the difference of the hydrophilic performance after washing is less than or equal to 3%, the water absorption is more than or equal to 250%, and the water drop diffusion time is less than or equal to 3 seconds. The performance test results of other fiber varieties in the market and the skin-core type bionic fiber for sweat guiding and quick drying in the embodiment 3 are shown in the table 2.
TABLE 2 comparison of the Performance of other fiber varieties on the market with that of the core-sheath type bionic fiber of the present invention
Contrast item Cotton Common polyester Coolmax Core-sheath type bionic fiber
Hydrophilicity High water absorption capacity Low water absorption capacity General water absorption capacity High water absorption capacity
Permeability of sweat Pasting wet and cold Stuffy heat and wet adhesion Good air permeability Good air permeability
Quick drying method Poor drying efficiency High drying efficiency The drying efficiency is higher High drying efficiency
Soft feeling of softness Comfortable hand feeling Rough hand feeling Rough hand feeling Soft and soft hand feeling
The above description is only an example of the present invention, and should not be taken as limiting the scope of the present invention. The insubstantial changes from the claimed invention, variations from the disclosed processes, or insubstantial changes from the disclosed processes, substitutions, or other related techniques, or direct or indirect use of the disclosed processes or embodiments within the scope of the claimed invention are intended to be covered by the claims.

Claims (10)

1. The skin-core bionic fiber capable of guiding sweat and quickly drying is characterized by comprising the following components in parts by mass: 30-65 of short fiber obtained by spinning a skin layer and a core layer, wherein the core layer is made of polyester, and the skin layer comprises polymer and hydrophilic master batch.
2. The sheath-core type bionic fiber as claimed in claim 1, wherein the mass ratio of the sheath layer to the core layer is 45-65: 30-55.
3. The sheath-core biomimetic fiber according to claim 1, wherein the polymer is one or more of polyethylene, polyamide, polyester, polypropylene and polyacrylonitrile.
4. The sheath-core biomimetic fiber according to any one of claims 1-3, wherein the polyester is one or more of polyethylene terephthalate, polytrimethylene terephthalate and polybutylene terephthalate.
5. The sheath-core type bionic fiber according to claim 1, wherein the hydrophilic master batch is one or more of polypropylene hydrophilic master batch, polyethylene hydrophilic master batch and polyamide hydrophilic master batch.
6. The sheath-core type bionic fiber according to claim 1, wherein the mass of the hydrophilic master batch accounts for 0.5-20 wt% of the mass of the polymer.
7. The skin-core type bionic fiber as claimed in claim 1, wherein the skin layer further comprises one or more of color master batch, softening master batch and antibacterial master batch.
8. The method for preparing the sheath-core biomimetic fiber according to any of claims 1-7, comprising the steps of:
slicing and blending the polymer and the hydrophilic master batch to obtain a skin layer mixture;
melting the obtained skin layer mixture and polyester, and performing spinning to obtain a skin-core type bionic fiber semi-finished product;
and stretching, curling and heat setting the obtained semi-finished product of the skin-core type bionic fiber to obtain the skin-core type bionic fiber.
9. The method of claim 8, wherein the stretching comprises hot water stretching and/or steam stretching.
10. The method as claimed in claim 8, wherein the hot water drawing temperature is 70-100 ℃ and the steam drawing temperature is 110-130 ℃.
CN201910957733.7A 2019-10-10 2019-10-10 Skin-core type bionic fiber capable of guiding sweat and quickly drying and preparation method thereof Pending CN110952165A (en)

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