CN111172651B - Moisture-absorbing quick-drying double-layer knitted fabric and preparation method thereof - Google Patents
Moisture-absorbing quick-drying double-layer knitted fabric and preparation method thereof Download PDFInfo
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- CN111172651B CN111172651B CN202010049643.0A CN202010049643A CN111172651B CN 111172651 B CN111172651 B CN 111172651B CN 202010049643 A CN202010049643 A CN 202010049643A CN 111172651 B CN111172651 B CN 111172651B
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- 239000004744 fabric Substances 0.000 title claims abstract description 173
- 238000001035 drying Methods 0.000 title claims abstract description 128
- 238000002360 preparation method Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title description 3
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 106
- 238000009792 diffusion process Methods 0.000 claims abstract description 83
- 238000010521 absorption reaction Methods 0.000 claims abstract description 38
- 239000002131 composite material Substances 0.000 claims abstract description 15
- 238000009941 weaving Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 58
- 238000002791 soaking Methods 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 48
- 238000007639 printing Methods 0.000 claims description 43
- 230000008569 process Effects 0.000 claims description 35
- 239000004900 Hydrophilic Finishing Agent Substances 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 21
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 18
- 229920000728 polyester Polymers 0.000 claims description 18
- 235000010413 sodium alginate Nutrition 0.000 claims description 18
- 239000000661 sodium alginate Substances 0.000 claims description 18
- 229940005550 sodium alginate Drugs 0.000 claims description 18
- 229920000742 Cotton Polymers 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 229920003043 Cellulose fiber Polymers 0.000 claims description 10
- 238000010021 flat screen printing Methods 0.000 claims description 8
- 238000009940 knitting Methods 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 7
- 238000007730 finishing process Methods 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 239000004627 regenerated cellulose Substances 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 4
- 229920000570 polyether Polymers 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 125000001153 fluoro group Chemical group F* 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 239000010410 layer Substances 0.000 description 296
- 239000007788 liquid Substances 0.000 description 26
- 210000004243 sweat Anatomy 0.000 description 15
- 238000001704 evaporation Methods 0.000 description 11
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
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- 238000009736 wetting Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 2
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- WHKUVVPPKQRRBV-UHFFFAOYSA-N Trasan Chemical compound CC1=CC(Cl)=CC=C1OCC(O)=O WHKUVVPPKQRRBV-UHFFFAOYSA-N 0.000 description 1
- 102000007641 Trefoil Factors Human genes 0.000 description 1
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- 210000004722 stifle Anatomy 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/102—Patterned fabrics or articles with stitch pattern
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/102—Patterned fabrics or articles with stitch pattern
- D04B1/104—Openwork fabric, e.g. pelerine fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/12—Patterned fabrics or articles characterised by thread material
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B9/00—Solvent-treatment of textile materials
- D06B9/04—Successively applying two or more different solvent-based treating materials
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
- D06P1/48—Derivatives of carbohydrates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
- D06P1/5271—Polyesters; Polycarbonates; Alkyd resins
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing 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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/11—Oleophobic properties
-
- 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
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
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- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/021—Moisture-responsive characteristics hydrophobic
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/022—Moisture-responsive characteristics hydrophylic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Knitting Of Fabric (AREA)
Abstract
The invention relates to a moisture-absorbing quick-drying double-layer knitted fabric and a preparation method thereof, wherein the preparation method comprises the following steps: weaving a double-layer knitted fabric with a moisture conducting function on an inner layer and a moisture absorbing function on an outer layer, performing mild discontinuous hydrophilic finishing on the inner layer surface and performing mild discontinuous hydrophobic finishing on the outer layer surface to prepare a moisture absorbing and quick drying double-layer knitted fabric; the prepared moisture-absorbing quick-drying double-layer knitted fabric is of a double-layer composite structure consisting of a moisture-conducting diffusion layer and a moisture-absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilic property of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer. The preparation method of the moisture-absorbing quick-drying double-layer knitted fabric is simple and convenient, is easy to operate, and the prepared moisture-absorbing quick-drying double-layer knitted fabric has excellent moisture-absorbing quick-drying effects.
Description
Technical Field
The invention belongs to the technical field of high-quality heat-humidity comfortable textiles, and relates to a moisture-absorbing quick-drying double-layer knitted fabric and a preparation method thereof.
Background
Along with the higher requirements of people on living quality, people not only provide beautiful requirements for clothes, but also pay more attention to the wearing comfort, and the proportion of the heat and humidity comfort in the comfort of the clothes is larger. Particularly, when a human body sweats in a hot environment or strenuous exercise in a large amount, if sweat cannot be timely transmitted to the external atmosphere through the fabric, humidity in the microclimate between the skin and the fabric tends to rise, evaporation of the sweat is hindered by the increase of the humidity, the fabric is easy to adhere to the skin, and then the human body feels hot and sticky.
The common moisture-absorbing quick-drying fabric is a moisture-absorbing and sweat-releasing fabric prepared on the basis of a one-way moisture-conducting principle, and from the viewpoint of bionics, the one-way moisture-conducting mechanism comprises a differential capillary effect, a transpiration effect and a moisture gradient effect.
Common pure cotton fabrics and polyester fabrics obtain a one-way moisture-conducting effect through hydrophilic and hydrophobic finishing so as to improve the quick-drying function of the fabric. For example, the moisture-absorbing and quick-drying pure cotton fabric disclosed in patent CN109208337A, which is subjected to discontinuous hydrophobic finishing on one side and discontinuous superhydrophilic finishing on the other side, realizes one-way conduction in the thickness direction of the pure cotton fabric, and because the discontinuous superhydrophilic finishing on the surface of the fabric forms a humidity gradient, when liquid water is conducted in the horizontal direction of the outer layer, the conduction speed in the superhydrophilic region is faster, so that the diffusion area of moisture on the surface of the fabric is increased, the fabric only considers that the diffusion of the liquid water on the surface of the fabric is increased, and because of the pure cotton fabric, when a large amount of sweat is produced in a human body, the fabric absorbs a large amount of moisture and is attached to the skin to generate discomfort; patent CN102888754A is through carrying out hydrophobic and hydrophilic treatment to ordinary dacron, has prepared a double-deck dacron knitted fabric with leading wet quick-drying gradient structure, and its inlayer is the moisture absorption hydrophobic layer, and the skin is leading wet hydrophilic layer, and this type of surface fabric is after human sweat, and sweat is not at the fabric inner surface layer diffusion, but by direct absorption to the outer diffusion evaporation of fabric, however this type of surface fabric is because of pure dacron raw materials, produces stifle sensation easily.
Common double-layer fabrics are usually woven by yarns with different hydrophilicity and hydrophobicity or different moisture absorption and sweat releasing fibers to form a differential capillary effect, when a human body sweats in a large amount, the sweat is quickly absorbed by the inner layer of the fabric and is quickly transmitted to the outer layer of the fabric, the inner layer of the fabric is dry and comfortable, and the sweat evaporates on the outer layer of the fabric. For example, patent CN2839315Y discloses a moisture-absorbing quick-drying composite pure polyester knitted fabric with unidirectional moisture-guiding, which is knitted by selecting two different cross-section yarns with different moisture-absorbing capacities, a knitted inner layer with poor moisture-absorbing capacity and a knitted outer layer with better moisture-absorbing capacity, the method must select two different fibers with different moisture-absorbing capacities, is not suitable for conventional common polyester fibers, and has great limitation on application; patent CN203923573U discloses by cotton yarn, spandex elastic fiber, the two-sided compound surface fabric that the dacron filament was interweaved, openly be cotton yarn, the reverse side of contact skin is the dacron, evaporate on the dacron sweat-absorbing back conducts positive cotton yarn with the sweat rapidly, this type surface fabric is the quick-drying type surface fabric of moisture absorption of relative ideal, the sweat is at the inlayer diffusion hardly, transmit the outer one-way moisture of leading of realization fast, at the outer diffusion evaporation of fabric, the surface fabric inlayer keeps dry and comfortable, even can not adhere skin production cool feeling when wet attitude yet, but cotton fiber has stronger water retentivity, easily pin the moisture, hinder the diffusion of liquid water on the horizontal plane, be unfavorable for moisture at the great diffusion area of fabric surface formation, and then evaporate from the surface fabric sooner.
Therefore, the research on the moisture-absorbing and quick-drying double-layer fabric with excellent moisture-absorbing and quick-drying effects and the preparation method thereof have very important significance.
Disclosure of Invention
The invention aims to solve the problem that the moisture absorption and quick drying effects of a moisture absorption and quick drying double-layer knitted fabric in the prior art are poor, and provides the moisture absorption and quick drying double-layer knitted fabric and a preparation method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a preparation method of a moisture-absorbing quick-drying double-layer knitted fabric comprises the steps of weaving the double-layer knitted fabric with a moisture conducting function on an inner layer and a moisture absorbing function on an outer layer, performing mild discontinuous hydrophilic finishing on the inner layer surface and performing mild discontinuous hydrophobic finishing on the outer layer surface to obtain the moisture-absorbing quick-drying double-layer knitted fabric;
the process of mild discontinuous hydrophilic finishing is that the process of hydrophilic finishing is carried out on the local area on the inner layer surface and the hydrophilicity is controlled to be weaker than that of the hydrophilic area on the outer layer; the slightly discontinuous hydrophobic finishing process is a process of performing hydrophobic finishing on a local area on the outer layer surface and controlling the hydrophobic property of the local area to be weaker than that of the hydrophobic area of the inner layer.
The fabric prepared by the preparation method of the moisture-absorbing and quick-drying double-layer knitted fabric is excellent in moisture-absorbing and quick-drying performance, because liquid water can be diffused in both the inner layer and the outer layer of the fabric in the horizontal direction, and because the outer layer is stronger in hydrophilic performance than the inner layer in the thickness direction, the liquid water can be transferred in a single direction, the liquid water is firstly diffused to a certain degree in the inner layer and then further diffused after being transferred to the outer layer, the liquid water is diffused in a trapezoid shape from inside to outside, the evaporation area is larger, and therefore the moisture-absorbing and quick-drying performance of the fabric is excellent;
the reason why the liquid water can diffuse to some extent in the inner layer is two:
the inner layer is a hydrophobic layer, and a local area of the inner layer is subjected to slight discontinuous hydrophilic finishing, so that part of the area of the inner layer is hydrophobic, and part of the area is hydrophilic, so that liquid water can be quickly soaked and spread in the inner layer of the fabric to form a larger diffusion area;
in the liquid water transfer process, the outer layer has stronger hydrophilic performance and the liquid water transfer speed is higher, so that the liquid water is not beneficial to forming a larger diffusion area in the inner layer.
As a preferred technical scheme:
according to the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric, the double-face circular knitting machine is adopted for knitting, the texture structure of the moisture-absorbing quick-drying double-layer knitted fabric is a rib type composite texture structure, the inner layer is completely looped, the inner layer is flat and favorable for liquid to diffuse in the inner layer of the fabric, and partial tucking of the outer layer is of a mesh structure with a concave-convex appearance, so that the contact area of liquid water and the environment is increased, and the drying rate is increased.
According to the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric, the inner layer is mainly formed by weaving hydrophobic yarns or moisture-absorbing moisture-conducting composite yarns prepared by adopting a novel spinning technology.
According to the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric, the hydrophobic yarns are polyester filament yarns or polyester staple yarns, and the cross section of each monofilament is cross-shaped, Y-shaped or trilobal; the moisture absorption and moisture conduction type composite yarn is polyester-cotton twisted yarn or polyester-cotton core-spun yarn.
According to the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric, the outer layer is mainly formed by weaving hydrophilic yarns.
According to the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric, the hydrophilic yarn is composed of more than one of natural cellulose fibers and regenerated cellulose fibers.
The selection of the material of the inner layer and the outer layer of the fabric enables the inner layer and the outer layer of the fabric to meet the differential capillary effect in the thickness direction, and finally sweat is conducted to the outer layer of the fabric to ensure that the inner layer is dry, comfortable and comfortable.
According to the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric, the mild discontinuous hydrophilic finishing and the mild discontinuous hydrophobic finishing are performed by adopting a flat screen printing method or a spraying method, preferably, the flat screen printing method is adopted, and the process flow is as follows: printing paste → drying → baking, wherein the hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, the hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing, and the hydrophilic finishing area and the hydrophobic finishing area are both 25%. The mild discontinuous hydrophilic finishing and the mild discontinuous hydrophobic finishing of the invention can also be separate finishing in sequence, and the sequence is not limited.
According to the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric, the hydrophilic printing paste mainly comprises 1-7 wt% of hydrophilic finishing agent, 2-7 wt% of sodium alginate and water, and the hydrophilic finishing agent is more than one of efficient multifunctional hydrophilic finishing agent TF-629C, hydrophilic finishing agent SE and polyester polyether type hydrophilic finishing agent DP 9992;
the hydrophobic printing paste mainly comprises 1-7 wt% of hydrophobic finishing agent, 2-7 wt% of sodium alginate and water, wherein the hydrophobic finishing agent is fluorine-containing hydrophobic finishing agent or fluorine-free hydrocarbon compound;
the drying temperature is 70-90 ℃, the baking temperature is 150-180 ℃, and the baking time is 3-5 min;
the pretreatment is carried out before the mild discontinuous hydrophilic finishing and the mild discontinuous hydrophobic finishing, and the process flow is as follows: preparing a cylinder → deoiling and washing → dehydrating → scutching → sizing → coiling;
after the mild discontinuous hydrophilic finishing and the mild discontinuous hydrophobic finishing, carrying out post-treatment, wherein the process flow is as follows: soaping → warm water washing → cold water washing → drying, wherein the temperature of soaping is 60-80 ℃.
The invention also provides the moisture-absorbing and quick-drying double-layer knitted fabric prepared by the preparation method of the moisture-absorbing and quick-drying double-layer knitted fabric, which is a double-layer composite structure consisting of the moisture-conducting diffusion layer and the moisture-absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilic property of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer.
As a preferred technical scheme:
according to AATCC 201-2014, the fabric is tested by adopting an RF4008HP fabric drying rate tester, the drying rate of the moisture-absorbing and quick-drying double-layer knitted fabric is 0.9536-1.0475 mL/h, the fabric is tested by adopting MMT according to AATCC195-2009, the soaking time of the inner layer of the fabric is 3.651-5.990 s, the soaking time of the outer layer of the fabric is 2.340-4.025 s, the diffusion speed of the inner layer is 2.053-4.025 mm/sec, the maximum soaking radius of the inner layer is 13.33-18.33 mm, the maximum soaking radius of the outer layer is 20-25 mm, the fabric is tested by adopting a contact angle tester, the contact angle after the surface of the inner layer of the fabric is finished is 72.453-82.192 degrees, and the contact angle after the surface of the outer layer of the fabric is finished is 105.322-122.118 degrees.
Has the advantages that:
(1) the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric is simple and convenient and easy to operate;
(2) according to the moisture-absorbing quick-drying double-layer knitted fabric, due to the existence of the hydrophilic finishing area on the surface of the inner layer of the fabric, when sweat is conducted in the horizontal direction of the inner layer of the fabric, liquid water can be quickly soaked and spread in the inner layer of the fabric to form a larger diffusion area due to the fact that the surface of the inner layer contains the slight discontinuous hydrophilic area, the soaking time of the outer layer is prolonged due to the fact that the surface of the outer layer contains the slight discontinuous hydrophobic area, the diffusion time of the liquid water in the inner layer is prolonged, the acquisition of the larger diffusion area is facilitated, the evaporation rate of the fabric is increased, and the better moisture-absorbing.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric comprises the following specific steps:
(1) the double-layer knitted fabric with the inner layer having the moisture conducting function and the outer layer having the moisture absorbing function is knitted by a double-side circular knitting machine, the inner layer is completely looped, and partial tucks on the outer layer are of a mesh structure with a concave-convex appearance; wherein, the inner layer is formed by weaving yarns (the yarns are formed by polyester filaments with cross-shaped monofilament cross sections); the outer layer is formed by weaving yarns (the yarns are made of cotton fibers);
(2) the pretreatment comprises the following process flows: preparing a cylinder → deoiling and washing → dehydrating → scutching → sizing → coiling;
(3) adopting a flat screen printing method to carry out mild discontinuous hydrophilic finishing on the inner layer surface firstly, and then carrying out mild discontinuous hydrophobic finishing on the outer layer surface, wherein the hydrophilic finishing area and the hydrophobic finishing area are both 25%, and the process flow of the two finishing processes is as follows: printing paste → drying → baking, wherein the hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, and the hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing; the hydrophilic printing paste consists of 5 wt% of high-efficiency multifunctional hydrophilic finishing agent TF-629C, 4 wt% of sodium alginate and water; the hydrophobic printing paste consists of 5 wt% of fluorine-containing hydrophobic finishing agent AG-E7500, 4 wt% of sodium alginate and water; the process conditions of the two finishing steps are as follows: the drying temperature is 80 ℃, the baking temperature is 150 ℃, and the baking time is 3 min;
(4) carrying out post-treatment, wherein the process flow is as follows: soaping → warm water washing → cold water washing → drying, wherein the temperature of soaping is 60 ℃;
the finally prepared moisture-absorbing quick-drying double-layer knitted fabric is of a double-layer composite structure consisting of a moisture-conducting diffusion layer and a moisture-absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilicity of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer; the drying rate of the hydroscopic and fast-dry double-layer knitted fabric is 0.9648mL/h, the infiltration time of the inner layer of the fabric is 3.931s, the infiltration time of the outer layer is 3.650s, the diffusion speed of the inner layer is 2.9544mm/sec, the maximum infiltration radius of the inner layer is 15mm, the maximum infiltration radius of the outer layer is 25mm, the contact angle of the surface of the inner layer of the fabric is 78.532 degrees, and the contact angle of the surface of the outer layer of the fabric is 110.721 degrees.
Comparative example 1
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric, which has the same specific steps as the example 1, and is different from the specific steps in the step (3) that the inner surface is not subjected to slight discontinuous hydrophilic finishing. The drying rate of the finally prepared moisture-absorbing and quick-drying double-layer knitted fabric is 0.7337mL/h, the soaking time of the inner layer of the fabric is 7.395s, the soaking time of the outer layer is 4.961s, the diffusion speed of the inner layer is 2.0771mm/sec, the maximum soaking radius of the inner layer is 15mm, the maximum soaking radius of the outer layer is 20mm, the contact angle of the surface of the inner layer of the fabric is 130.121 degrees, and the contact angle of the surface of the outer layer of the fabric is 112.313 degrees. Comparing example 1 with comparative example 1, it can be seen that the moisture absorption and quick-drying performance of the moisture absorption and quick-drying double-layer knitted fabric prepared in example 1 is better, because part of the inner layer is hydrophilic, and part of the inner layer is hydrophobic, which is beneficial to increase the wetting and spreading of liquid water in the horizontal direction, increase the diffusion area, further diffuse the liquid water when being transferred to the outer layer, increase the evaporation area, and further improve the moisture absorption and quick-drying performance, all the inner layer of the moisture absorption and quick-drying double-layer knitted fabric prepared in comparative example 1 is hydrophobic, the diffusion area of the liquid water in the horizontal direction is relatively smaller, the evaporation area is relatively smaller, and therefore the moisture absorption and quick-drying performance is poorer.
Comparative example 2
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric, which has the same specific steps as the example 1, and is different from the specific steps in the step (3) that the surface of the outer layer is not subjected to slight discontinuous hydrophobic finishing. The drying rate of the finally prepared moisture-absorbing quick-drying double-layer knitted fabric is 0.8597mL/h, the soaking time of the inner layer of the fabric is 4.680s, the soaking time of the outer layer is 4.587s, the diffusion speed of the inner layer is 2.1111mm/sec, the maximum soaking radius of the inner layer is 15mm, the maximum soaking radius of the outer layer is 15mm, the contact angle of the surface of the inner layer of the fabric is 76.412 degrees, and the contact angle of the surface of the outer layer of the fabric is 0 degree. Comparing the example 1 with the comparative example 2, it can be seen that the moisture absorption and quick-drying performance of the moisture absorption and quick-drying double-layer knitted fabric prepared in the example 1 is better, because part of the outer layer is hydrophilic, and part of the outer layer is hydrophobic, which is beneficial to increase the diffusion area of liquid water in the horizontal direction of the inner layer and increase the evaporation area, thereby improving the moisture absorption and quick-drying performance, all the outer layer of the moisture absorption and quick-drying double-layer knitted fabric prepared in the comparative example 2 is hydrophilic, the diffusion area of the liquid water in the horizontal direction of the inner layer is relatively smaller, and the evaporation area is relatively smaller, so the moisture absorption and.
Comparative example 3
The specific steps of the preparation method of the moisture-absorbing quick-drying double-layer knitted fabric are basically the same as those in the example 1, and the difference is that the step (3) is not carried out, namely, the light discontinuous hydrophilic finishing is not carried out on the inner layer surface, and the light discontinuous hydrophobic finishing is not carried out on the outer layer surface. The drying rate of the finally prepared moisture-absorbing and quick-drying double-layer knitted fabric is 0.8236mL/h, the soaking time of the inner layer of the fabric is 10.015s, the soaking time of the outer layer is 2.527s, the diffusion speed of the inner layer is 1.0997mm/sec, the maximum soaking radius of the inner layer is 10mm, the maximum soaking radius of the outer layer is 23.33mm, the contact angle of the surface of the inner layer of the fabric is 133.664 degrees, and the contact angle of the surface of the outer layer of the fabric is 0 degree. Comparing the example 1 with the comparative example 3, it can be seen that the moisture absorption and quick-drying performance of the moisture absorption and quick-drying double-layer knitted fabric prepared in the example 1 is better, because part of the surface area of the inner layer is hydrophilic, part of the surface area is hydrophobic, the wetting and spreading of liquid water in the horizontal direction can be increased, the diffusion area is increased, part of the surface area of the outer layer is hydrophilic, and part of the surface area is hydrophobic, because the surface of the outer layer contains a slightly discontinuous hydrophobic area, the wetting time of the outer layer is increased, the diffusion time of the liquid water in the inner layer is prolonged, the diffusion area of the liquid water in the horizontal direction can be increased, the moisture absorption and quick-drying performance is improved, and the drying rate; the whole surface area of the inner layer of the moisture-absorbing and quick-drying double-layer knitted fabric prepared in the comparative example 3 is hydrophobic, the diffusion area of liquid water in the horizontal direction is relatively small, the evaporation area is relatively small, the whole area of the outer layer is hydrophilic, the diffusion area of liquid water in the horizontal direction is relatively small, the evaporation area is relatively small, and therefore the moisture-absorbing and quick-drying performance is poorer than that of the example 1.
Example 2
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric comprises the following specific steps:
(1) weaving a jacquard double-face double-layer knitted fabric with a moisture conducting function on an inner layer and a moisture absorbing function on an outer layer by using a double-face circular knitting machine, wherein the inner layer is completely looped, and partial tucks on the outer layer are of a mesh structure with a concave-convex appearance; wherein, the inner layer is woven by yarn (the yarn is composed of polyester staple fiber with a trilobal cross section of monofilament); the outer layer is woven by yarns (the yarns are composed of regenerated cellulose fibers);
(2) the pretreatment comprises the following process flows: preparing a cylinder → deoiling and washing → dehydrating → scutching → sizing → coiling;
(3) adopting a flat screen printing method to carry out mild discontinuous hydrophilic finishing on the inner layer surface firstly, and then carrying out mild discontinuous hydrophobic finishing on the outer layer surface, wherein the hydrophilic finishing area and the hydrophobic finishing area are both 25%, and the process flow of the two finishing processes is as follows: printing paste → drying → baking, wherein the hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, and the hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing; the hydrophilic printing paste consists of 2 wt% of hydrophilic finishing agent SE, 3 wt% of sodium alginate and water; the hydrophobic printing paste consists of 2 wt% of a composition of fluorine-free hydrocarbon compounds X5210 and ZELAN R3 (the mass ratio is 1:1), 3 wt% of sodium alginate and water; the process conditions of the two finishing steps are as follows: the drying temperature is 70 ℃, the baking temperature is 165 ℃, and the baking time is 4 min;
(4) carrying out post-treatment, wherein the process flow is as follows: soaping → warm water washing → cold water washing → drying, wherein the temperature of soaping is 60 ℃;
the finally prepared moisture-absorbing quick-drying double-layer knitted fabric is of a double-layer composite structure consisting of a moisture-conducting diffusion layer and a moisture-absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilicity of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer; the drying rate of the moisture-absorbing quick-drying double-layer knitted fabric is 0.9536mL/h, the soaking time of the inner layer of the fabric is 5.429s, the soaking time of the outer layer is 2.715s, the diffusion speed of the inner layer is 2.1137mm/sec, the maximum soaking radius of the inner layer is 13.33mm, the maximum soaking radius of the outer layer is 21.67mm, the contact angle of the inner layer of the fabric is 81.072 degrees, and the contact angle of the outer layer of the fabric is 107.263 degrees.
Example 3
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric comprises the following specific steps:
(1) weaving a double-layer knitted fabric with a honeycomb mesh structure, wherein the inner layer has a moisture conducting effect, and the outer layer has a moisture absorbing effect by using a double-side circular knitting machine, the inner layer is completely looped, and partial tucks of the outer layer are in a mesh structure with a concave-convex appearance; wherein, the inner layer is woven by yarn (the yarn is formed by polyester filament with the cross section of a monofilament in a Y shape); the outer layer is woven by yarns (the yarns are composed of regenerated cellulose fibers);
(2) the pretreatment comprises the following process flows: preparing a cylinder → deoiling and washing → dehydrating → scutching → sizing → coiling;
(3) adopting a flat screen printing method to carry out mild discontinuous hydrophilic finishing on the inner layer surface firstly, and then carrying out mild discontinuous hydrophobic finishing on the outer layer surface, wherein the hydrophilic finishing area and the hydrophobic finishing area are both 25%, and the process flow of the two finishing processes is as follows: printing paste → drying → baking, wherein the hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, and the hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing; the hydrophilic printing paste consists of 6 wt% of polyester polyether type hydrophilic finishing agent DP9992, 5 wt% of sodium alginate and water; the hydrophobic printing paste consists of 6 wt% of fluorine-containing hydrophobic finishing agent AG-E7500, 5 wt% of sodium alginate and water; the process conditions of the two finishing steps are as follows: the drying temperature is 70 ℃, the baking temperature is 170 ℃, and the baking time is 3 min;
(4) carrying out post-treatment, wherein the process flow is as follows: soaping → warm water washing → cold water washing → drying, wherein the temperature of soaping is 65 ℃;
the finally prepared moisture-absorbing quick-drying double-layer knitted fabric is of a double-layer composite structure consisting of a moisture-conducting diffusion layer and a moisture-absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilicity of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer; the drying rate of the hydroscopic and fast dry double-layer knitted fabric is 0.9787mL/h, the soaking time of the inner layer of the fabric is 3.837s, the soaking time of the outer layer is 3.463s, the diffusion speed of the inner layer is 2.9621mm/sec, the maximum soaking radius of the inner layer is 15mm, the maximum soaking radius of the outer layer is 23.33mm, the contact angle of the surface of the inner layer of the fabric is 74.866 degrees, and the contact angle of the surface of the outer layer of the fabric is 121.322 degrees.
Example 4
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric comprises the following specific steps:
(1) the double-layer knitted fabric with the hexagonal mesh structure is knitted by a double-sided circular knitting machine, wherein the inner layer has a moisture conducting effect, the outer layer has a moisture absorbing effect, the inner layer is completely looped, and partial tucks on the outer layer are in a mesh structure with a concave-convex appearance; wherein, the inner layer is formed by weaving polyester cotton and twisted yarn prepared by adopting a novel spinning technology; the outer layer is formed by weaving hydrophilic yarns formed by blending natural cellulose fibers and regenerated cellulose fibers in a mass ratio of 1: 1;
(2) the pretreatment comprises the following process flows: preparing a cylinder → deoiling and washing → dehydrating → scutching → sizing → coiling;
(3) the method comprises the following steps of firstly carrying out mild discontinuous hydrophobic finishing on the surface of an outer layer by adopting a flat screen printing method, and then carrying out mild discontinuous hydrophilic finishing on the surface of an inner layer, wherein the hydrophilic finishing area and the hydrophobic finishing area are both 25%, and the process flow of twice finishing is as follows: printing paste → drying → baking, wherein the mild discontinuous hydrophilic finishing adopts hydrophilic printing paste, the mild discontinuous hydrophobic finishing adopts hydrophobic printing paste, and the hydrophilic finishing area and the hydrophobic finishing area are both 25%; the hydrophilic printing paste consists of 5 wt% of a mixture of a high-efficiency multifunctional hydrophilic finishing agent TF-629C and a hydrophilic finishing agent SE in a mass ratio of 1:1, 2 wt% of sodium alginate and water; the hydrophobic printing paste consists of 5 wt% of fluorine-containing hydrophobic finishing agent AG-E7500, 2 wt% of sodium alginate and water; the process conditions of the two finishing steps are as follows: the drying temperature is 85 ℃, the baking temperature is 175 ℃, and the baking time is 5 min;
(4) carrying out post-treatment, wherein the process flow is as follows: soaping → warm water washing → cold water washing → drying, wherein the temperature of soaping is 76 ℃;
the finally prepared moisture-absorbing quick-drying double-layer knitted fabric is of a double-layer composite structure consisting of a moisture-conducting diffusion layer and a moisture-absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilicity of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer; the drying rate of the hydroscopic and fast dry double-layer knitted fabric is 1.0132mL/h, the soaking time of the inner layer of the fabric is 3.744s, the soaking time of the outer layer is 2.902s, the diffusion speed of the inner layer is 3.3933mm/sec, the maximum soaking radius of the inner layer is 16.33mm, the maximum soaking radius of the outer layer is 25mm, the contact angle of the surface of the inner layer of the fabric is 70.962 degrees, and the contact angle of the surface of the outer layer of the fabric is 111.684 degrees.
Example 5
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric comprises the following specific steps:
(1) weaving a double-layer knitted fabric with a bead ground mesh structure, wherein the inner layer has a moisture conducting effect, the outer layer has a moisture absorbing effect, the inner layer is completely looped, and partial tucks of the outer layer are in a mesh structure with a concave-convex appearance; wherein, the inner layer is woven by polyester cotton core-spun yarns prepared by a novel spinning technology; the outer layer is formed by weaving hydrophilic yarns formed by blending natural cellulose fibers and regenerated cellulose fibers in a mass ratio of 1: 1;
(2) the pretreatment comprises the following process flows: preparing a cylinder → deoiling and washing → dehydrating → scutching → sizing → coiling;
(3) adopting a flat screen printing method to carry out mild discontinuous hydrophilic finishing on the inner layer surface firstly, and then carrying out mild discontinuous hydrophobic finishing on the outer layer surface, wherein the hydrophilic finishing area and the hydrophobic finishing area are both 25%, and the process flow of the two finishing processes is as follows: printing paste → drying → baking, wherein the hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, and the hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing; the hydrophilic printing paste consists of 1 wt% of hydrophilic finishing agent (specifically, a mixture of a polyester polyether type hydrophilic finishing agent DP9992, a high-efficiency multifunctional hydrophilic finishing agent TF-629C and a hydrophilic finishing agent SE in a mass ratio of 1:1: 1), 7 wt% of sodium alginate and water; the hydrophobic printing paste consists of 1 wt% of fluorine-containing hydrophobic finishing agent AG-E7500, 7 wt% of sodium alginate and water; the process conditions of the two finishing steps are as follows: the drying temperature is 80 ℃, the baking temperature is 180 ℃, and the baking time is 4 min;
(4) carrying out post-treatment, wherein the process flow is as follows: soaping → warm water washing → cold water washing → drying, wherein the temperature of soaping is 75 ℃;
the finally prepared moisture-absorbing quick-drying double-layer knitted fabric is of a double-layer composite structure consisting of a moisture-conducting diffusion layer and a moisture-absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilicity of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer; the drying rate of the hydroscopic and fast dry double-layer knitted fabric is 0.9767mL/h, the soaking time of the inner layer of the fabric is 5.990s, the soaking time of the outer layer is 3.464s, the diffusion speed of the inner layer is 2.0531mm/sec, the maximum soaking radius of the inner layer is 15mm, the maximum soaking radius of the outer layer is 20mm, the contact angle of the surface of the inner layer of the fabric is 82.192 degrees, and the contact angle of the surface of the outer layer of the fabric is 105.322 degrees.
Example 6
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric is basically the same as that in example 1, except that in the step (3), a hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, and a hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing; the hydrophilic printing paste consists of 7 wt% of hydrophilic finishing agent, 6 wt% of sodium alginate and water; the hydrophobic printing paste consists of 7 wt% of hydrophobic finishing agent AG-E7500, 6 wt% of sodium alginate and water; the process conditions of the two finishing steps are as follows: the drying temperature is 90 ℃, the baking temperature is 190 ℃, and the baking time is 4 min;
the drying rate of the prepared moisture-absorbing and quick-drying double-layer knitted fabric is 0.9321mL/h, the soaking time of the inner layer of the fabric is 3.651s, the soaking time of the outer layer of the fabric is 4.025s, the diffusion speed of the inner layer is 3.3633mm/sec, the maximum soaking radius of the inner layer is 15mm, the maximum soaking radius of the outer layer is 25mm, the contact angle of the surface of the inner layer of the fabric is 72.453 degrees, and the contact angle of the surface of the outer layer of the fabric is 122.118.
Example 7
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric is basically the same as that in example 1, except that in the step (3), a hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, and a hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing; the hydrophilic printing paste consists of 4 wt% of hydrophilic finishing agent, 4 wt% of sodium alginate and water; the hydrophobic printing paste consists of 4 wt% of hydrophobic finishing agent AG-E7500, 4 wt% of sodium alginate and water; the process conditions of the two finishing steps are as follows: the drying temperature is 80 ℃, the baking temperature is 178 ℃, and the baking time is 5 min;
the drying rate of the prepared moisture-absorbing quick-drying double-layer knitted fabric is 1.0475mL/h, the soaking time of the inner layer of the fabric is 4.212s, the soaking time of the outer layer is 2.995s, the diffusion speed of the inner layer is 2.5219mm/sec, the maximum soaking radius of the inner layer is 18.33mm, the maximum soaking radius of the outer layer is 25mm, the contact angle of the surface of the inner layer of the fabric is 79.526 degrees, and the contact angle of the surface of the outer layer of the fabric is 109.302 degrees.
Example 8
A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric comprises the following specific steps, which are basically the same as those in example 1, and is characterized in that polyester filament yarns with cross-shaped cross sections of monofilaments in the step (1) are replaced by polyester filament yarns with trefoil cross sections of the monofilaments;
the drying rate of the prepared moisture-absorbing quick-drying double-layer knitted fabric is 0.9536mL/h, the soaking time of the inner layer of the fabric is 4.012s, the soaking time of the outer layer is 2.340s, the diffusion speed of the inner layer is 2.7211mm/sec, the maximum soaking radius of the inner layer is 13.33mm, the maximum soaking radius of the outer layer is 25mm, the contact angle of the surface of the inner layer of the fabric is 79.206 degrees, and the contact angle of the surface of the outer layer of the fabric is 111.453 degrees.
Claims (10)
1. A preparation method of a moisture-absorbing quick-drying double-layer knitted fabric is characterized by comprising the following steps: weaving a double-layer knitted fabric with a moisture conducting function on an inner layer and a moisture absorbing function on an outer layer, performing mild discontinuous hydrophilic finishing on the inner layer surface and performing mild discontinuous hydrophobic finishing on the outer layer surface to prepare a moisture absorbing and quick drying double-layer knitted fabric;
the process of mild discontinuous hydrophilic finishing is that the process of hydrophilic finishing is carried out on the local area on the inner layer surface and the hydrophilicity is controlled to be weaker than that of the hydrophilic area on the outer layer; the slightly discontinuous hydrophobic finishing process is a process of performing hydrophobic finishing on a local area on the outer layer surface and controlling the hydrophobic property of the local area to be weaker than that of the hydrophobic area of the inner layer.
2. The preparation method of the moisture-absorbing quick-drying double-layer knitted fabric according to claim 1, characterized in that a double-sided circular knitting machine is adopted for knitting, the texture structure of the moisture-absorbing quick-drying double-layer knitted fabric is a rib type composite texture structure, the inner layer is completely looped, and partial tucks on the outer layer are of a mesh structure with a concave-convex appearance.
3. The method for preparing the moisture-absorbing quick-drying double-layer knitted fabric according to claim 1, wherein the inner layer is mainly formed by weaving hydrophobic yarns or moisture-absorbing moisture-conducting composite yarns.
4. The preparation method of the moisture-absorbing quick-drying double-layer knitted fabric according to claim 3, wherein the hydrophobic yarns are polyester filament yarns or polyester staple yarns, and the cross section of each monofilament is cross-shaped, Y-shaped or trilobal; the moisture absorption and moisture conduction type composite yarn is polyester-cotton twisted yarn or polyester-cotton core-spun yarn.
5. The method for preparing a moisture-absorbing quick-drying double-layer knitted fabric according to claim 1, wherein the outer layer is mainly woven from hydrophilic yarns.
6. The method for preparing a moisture-absorbing quick-drying double knit fabric according to claim 5, wherein the hydrophilic yarn is composed of one or more of natural cellulose fibers and regenerated cellulose fibers.
7. The preparation method of the moisture-absorbing quick-drying double-layer knitted fabric according to claim 1, characterized in that the mild discontinuous hydrophilic finishing and the mild discontinuous hydrophobic finishing are performed by a flat screen printing method, the hydrophilic finishing area and the hydrophobic finishing area are both 25%, and the process flow is as follows: printing paste → drying → baking, wherein the hydrophilic printing paste is adopted for mild discontinuous hydrophilic finishing, and the hydrophobic printing paste is adopted for mild discontinuous hydrophobic finishing.
8. The preparation method of the moisture-absorbing quick-drying double-layer knitted fabric according to claim 7, wherein the hydrophilic printing paste mainly comprises 1-7 wt% of hydrophilic finishing agent, 2-7 wt% of sodium alginate and water, and the hydrophilic finishing agent is more than one of efficient multifunctional hydrophilic finishing agent TF-629C, hydrophilic finishing agent SE and polyester polyether type hydrophilic finishing agent DP 9992;
the hydrophobic printing paste mainly comprises 1-7 wt% of hydrophobic finishing agent, 2-7 wt% of sodium alginate and water, wherein the hydrophobic finishing agent is fluorine-containing hydrophobic finishing agent or fluorine-free hydrocarbon compound;
the drying temperature is 70-90 ℃, the baking temperature is 150-180 ℃, and the baking time is 3-5 min;
the pretreatment is carried out before the mild discontinuous hydrophilic finishing and the mild discontinuous hydrophobic finishing, and the process flow is as follows: preparing a cylinder → deoiling and washing → dehydrating → scutching → sizing → coiling;
after the mild discontinuous hydrophilic finishing and the mild discontinuous hydrophobic finishing, carrying out post-treatment, wherein the process flow is as follows: soaping → warm water washing → cold water washing → drying, wherein the temperature of soaping is 60-80 ℃.
9. The moisture-absorbing and quick-drying double-layer knitted fabric prepared by the preparation method of the moisture-absorbing and quick-drying double-layer knitted fabric according to any one of claims 1 to 8 is characterized in that: the structure is a double-layer composite structure consisting of a moisture conducting diffusion layer and a moisture absorbing diffusion layer; the moisture-conducting diffusion layer is partially hydrophilic and partially hydrophobic; the moisture absorption diffusion layer is partially hydrophilic and partially hydrophobic; the whole hydrophilic property of the moisture absorption diffusion layer is higher than that of the moisture conduction diffusion layer.
10. The moisture-absorbing and quick-drying double-layer knitted fabric according to claim 9, wherein the drying rate of the moisture-absorbing and quick-drying double-layer knitted fabric is 0.9536-1.0475 mL/h, the soaking time of the inner layer of the fabric is 3.651-5.990 s, the soaking time of the outer layer is 2.340-4.025 s, the diffusion speed of the inner layer is 2.053-4.025 mm/sec, the maximum soaking radius of the inner layer is 13.33-18.33 mm, the maximum soaking radius of the outer layer is 20-25 mm, the finished contact angle of the inner layer of the fabric is 72.453-82.192 degrees, and the finished contact angle of the outer layer of the fabric is 105.322-122.118 degrees.
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Effective date of registration: 20231114 Address after: No. 8 Huaxin Road, Huashi Town, Jiangyin City, Wuxi City, Jiangsu Province, 214421 Patentee after: Jiangyin Hailan Technology Co.,Ltd. Address before: 201620 No. 2999 North Renmin Road, Shanghai, Songjiang District Patentee before: DONGHUA University |