CN105926272A - Preparation method of superfine-velvet Lyocell fiber fabric - Google Patents
Preparation method of superfine-velvet Lyocell fiber fabric Download PDFInfo
- Publication number
- CN105926272A CN105926272A CN201610315764.9A CN201610315764A CN105926272A CN 105926272 A CN105926272 A CN 105926272A CN 201610315764 A CN201610315764 A CN 201610315764A CN 105926272 A CN105926272 A CN 105926272A
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- Prior art keywords
- lyocell fiber
- preparation
- ultra
- pile fabrics
- fiber fabric
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
-
- 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
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Abstract
The invention relates to a preparation method of a superfine-velvet Lyocell fiber fabric. The preparation method comprises the steps that a Lyocell fiber fabric is pretreated and then put into concentrated alkali liquid to be stirred and infiltrated, and then the swelled Lyocell fiber fabric is obtained; after the concentrated alkali liquid is removed, ultrasonic treatment, cleaning, drying and napping treatment are conducted, and then the superfine-velvet Lyocell fiber fabric is obtained. According to the preparation method, the Lyocell fiber product is uniformly treated by adopting the cavatition effect of ultrasonic waves in a liquid medium as external force, therefore, Lyocell fibers can more rapidly generate the uniform fibrillation effect to be shown as superfine fibers, the product performance can be significantly improved, operation is easy and convenient, and energy conservation and environment protection are achieved.
Description
Technical field
The invention belongs to the preparation field of pile fabrics, particularly to the preparation side of the ultra-fine pile fabrics of a kind of Lyocell fiber
Method.
Background technology
Lyocell fiber is with NMMO as solvent, is directly dissolved by cellulosic raw material, and the regeneration prepared through wet spinning is fine
Cellulose fiber.Its course of processing solvent for use NMMO can be the most pollution-free close to the recovery of 100%.The product of Lyocell fiber
Bio-degradable or natural degradation after product use, will not be referred to as " 21 century green fiber " to environment.
Lyocell fiber has highly crystalline highly oriented internal structure, and the structure comparison between fibrous inside fibrillar structure unit is loose,
Horizontal integration force rate is more weak, and fibril self highly crystalline and trend so that it easily produces fibrillation.In use,
Fiber surface easily divides more tiny fiber floss, i.e. fibril or fibril bundle, causes fabric face the most scared, Fabric Style
The undesirable situations such as localized variation occur, is considered as a big defect of plain edition Lyocell fiber always.Acordis was public later
Department with Lenzing company develop improve this fibrid defect cross-linking type Lyocell fiber, the most do not study or
Product manages to utilize the characteristic of Lyocell fiber fibrillation.
Velvet is the sense of touch of very pro-skin, and the velvet of superfine fibre is received by the market the most again, peach face and suede nap once because
Ultra-fine velvet obtained application on bed necessaries, but, owing to they are terylene or polyamide composite filaments product, non-hygroscopic, have electrostatic
Fail to walk far in the textile field of intimate contact skin etc. defect.And Lyocell fiber is regenerated celulose fibre, comfortableness with
Cotton similar, the ultra-fine velvet fabric utilizing Lyocell fiber to make just can fill up answering of the ultra-fine velvet product of synthetic fibers making
Use vacancy.Further, because work in-process may divide the fibril and the most sufficiently be separated, would not fibril again in using
Changing, cloth style is just stablized constant.
Lyocell fiber only possessed certain condition it is possible to occur fibrillation, J.Schurz et al. research find wet swollen
Under swollen state, and applying the effect of certain mechanical external force and frictional force, Lyocell fiber can be with fibrillation.Develop
This series products, the most efficiently realizes fibrillation, and accomplishes that the uniform and stable cloth style after fibrillation is crucial.
Summary of the invention
The technical problem to be solved is to provide the preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber, its feature
It is: the present invention uses the cavitation of ultrasound wave in liquid medium as external force, to process Lyocell fiber goods equably, can
Make Lyocell fiber produce uniform fibrillation effect faster, show as superfine fibre, easy and simple to handle, energy-conserving and environment-protective.
A kind of preparation method of the ultra-fine pile fabrics of the Lyocell fiber of the present invention, including:
(1) Lyocell fiber fabric being carried out pre-treatment, be then placed in high alkali liquid, stirring allows high alkali liquid contact rapidly Lyocell
Fiber, then infiltrates, and makes Lyocell fiber produce sufficient swelling, obtains the Lyocell fiber after swelling processes and knits
Thing；
(2), after the Lyocell fiber fabric after above-mentioned swelling processes sloughs high alkali liquid, ultrasonic Treatment, then cleaning-drying are carried out,
Napping processes, and obtains the ultra-fine pile fabrics of Lyocell fiber.
In described step (1), Lyocell fiber fabric carries out pre-treatment particularly as follows: Lyocell fiber fabric is immersed sodium hydroxide
Solution boils 2-10min.
The concentration of described sodium hydroxide solution is 0.1mol/L～1.0mol/L.
Because Lyocell fiber surface used has preparation medium, mixed surface of natural fibers to there is the impurity such as adipocere, fibrillation is processed
Front elder generation boils 2～10min in the NaOH solution that concentration is 0.1mol/L～1.0mol/L, removes the chemical fibre of fiber surface
The impurity such as oil preparation, adipocere, in order to when the later stage processes, liquid medium can be uniformly applied to Lyocell fiber, and is conducive to
Subsequent treatment liquid keeps clean and recycling.
After Lyocell fiber fabric carries out pre-treatment in step (1), slough the alkali liquor of pre-treatment.
In described step (1), the concentration of high alkali liquid is 1.0～5.0mol/L.
In step (1), Lyocell fiber fabric carries out pre-treatment, is then placed in high alkali liquid, and bath raio is 1:5-50.
In described step (1), after stirring, infiltration is: mixing time is 1-10min；Infiltrating time is 10-30min.
Described step (2) is sloughed high alkali liquid and sloughs high alkali liquid for centrifugal or extruding.
Ultrasonic Treatment in described step (2) is particularly as follows: immerse in ultrasonic Treatment tank, and the ultrasound wave sound intensity is 0～10W/cm2,
Supersonic frequency is 20～80kHz, and the process time is 10-60min.
Lyocell fiber goods after swelling processes, slough high alkali liquid, immerse in ultrasonic Treatment tank, utilize ultrasound wave
Cavitation carries out the most fully impact to Lyocell fiber, processes 10～60min.
Described step (2) cleaning-drying: the fibre after being ultrasonically treated takes out from tank, after rinsing with clear water,
Dry.
In step (2), napping carries out brushing process after processing.
Napping, brushing process: although it is more weak between fibril or fibril bundle by ultrasonic destruction to be in goods Lyocell fiber
Adhesion, but be affected by the constraint of yarn twist, pilotaxitic texture, most Lyocell fiber in spatial shape still in
It is now the loose heap building materials for laying of fiber one by one, really fibril bundle, needs external force to make these fibrils Shu Yiwei, macroscopically
It is rendered as superfine fibre floss.Way is that the Lyocell fiber goods after drying carry out slight napping, in order to allow by ultrasound wave
Space length between isolated fibril amplifies, and macroscopically shows as superfine fibre.Brushing arranges and is then conducive to ultra-fine floss to one
Determine direction arrangement and embody smooth outward appearance and feel.
Napping, brushing process and use existing conventional equipment.
The present invention is the cavitation utilizing ultrasound wave to produce in a liquid, produces the Lyocell fiber surface under wet swelling state
Percussion, promotes that fiber surface divides fiber fines floss, and the energy of ultrasound wave is to flow along the direction of propagation of sound wave
, make liquid in groove produce convection current, can stepless action in the Lyocell fiber being in liquid medium and goods thereof so that it is uniformly
Ground fibrillation.
Beneficial effect
The present invention is the super-refinement process technology of Lyocell fiber, makes every effort under conditions of the resource utilization maximums such as energy time,
Lyocell fiber is made to produce fibrillation, and the negative shadow to fibre faster, more fully in the environment of external force stepless action
Ring minimum.This technology is applied to fabric post-treatment operation, develops the textile with ultra-fine velvet, it is possible to exploitation Lyocell
Other products of fiber super-refinement, can significantly promote perception and the added value of textile.
The present invention uses the cavitation of ultrasound wave in liquid medium as external force, to process Lyocell fiber goods equably, can make
Lyocell fiber produces uniform fibrillation effect faster, shows as superfine fibre, easy and simple to handle, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the Lyocell superfine fibre of biology microscope sem observation after embodiment 1 technical finesse；
Fig. 2 is Lyocell superfine fibre overall under field emission microscope after embodiment 2 technical finesse；
Fig. 3 is the Lyocell superfine fibre after embodiment 2 technical finesse under field emission microscope；
Fig. 4 is undressed Lyocell fiber Flied emission electromicroscopic photograph.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments be merely to illustrate the present invention and not
For limiting the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, those skilled in the art can
To make various changes or modifications the present invention, these equivalent form of values fall within the application appended claims limited range equally.
Embodiment 1
Lyocell fiber (Shandong Ying Li company product), specification is 1.4dtex × 38mm.
Infiltrating 20min after Lyocell fiber is directly placed in the NaOH solution that concentration is 2.5mol/L stirring, bath raio is 1:50.
After the abundant swelling of fiber, fiber is taken out from NaOH solution and puts into the beaker equipped with water, by straight for the probe of ultrasonic grinding instrument
Patching to fill and process 10min in the beaker of fiber and water, the ultrasound wave sound intensity is 100W/cm2, supersonic frequency is 20kHz.
It appeared that the solution infiltrating Lyocell fiber gradually becomes thickness during ultrasonic Treatment, illustrated fibril from
Split off in Lyocell fiber pass into solution.Solution after ultrasonic Treatment is dripped at biology microscope Microscopic observation on microscope slide,
Amplifying 400 times, fiber be can be observed and produce obvious fibrillation, slippage becomes the superfine fibre of a diameter of 1～5 μm, sees Fig. 1,
Illustrate that the process technology of the present invention is effective.
Embodiment 2
Lyocell fiber (Shandong Ying Li company produces, and specification is 1.4dtex × 38mm) used by embodiment 1 is made 32 English
Count yarn, the conventional twist, then it is made into latitude jersey.
Compound concentration is the NaOH solution of 1.0mol/L, after knitted fabric is boiled 5min, sloughs the alkali liquor of pre-treatment, is placed on
Concentration be 2.5mol/L NaOH solution in stirring after infiltrate 20min, bath raio is 1:50, after the abundant swelling of fiber, sloughs
Alkali liquor, a directly flushing is dried；Another part carries out ultrasonic Treatment, immerses in ultrasonic Treatment tank, and the ultrasound wave sound intensity is
5W/cm2, supersonic frequency is 25kHz, takes out flushing and dry after processing 30min.2 pieces of knitted fabrics are carried out under same process
Napping processes, and then carries out hand valuation, finds that the fabric crossed through ultrasonic Treatment has obvious superfine fibre velvet.Take it
Middle fiber is at the micro-Microscopic observation of field emission electron (fiber after supersound process), after finding Ying Saier fiber ultrasonic Treatment, almost
All fibres can isolate tiny fine hair, and most fibers show as a big fiber and physically divide several tiny fine hair,
Seeing Fig. 2 Fig. 3, few fibers radially almost all is split into superfine fibre, sees Fig. 3.Isolate thin on Ying Saier fiber
The average diameter of floss 2.6 microns, diameter variation coefficient is 40%.And another block fabric is exactly common sanded fabric, from
In it can be seen that the quantity of tiny fine hair little.
Embodiment 3
The Lyocell fiber (Shandong Ying Li company produces, and specification is 1.4dtex × 38mm) of embodiment 1 is made 40 English and props up yarn
Line, the conventional twist.Interweave with terylene organizine again and be fabricated to Warp Satin woven fabric.
Compound concentration is the NaOH solution of 0.5mol/L, sloughs the alkali liquor of pre-treatment, put into concentration after fabric boils 5min
For infiltrating 30min in the NaOH concentrated solution of 2.0mol/L, bath raio is 1:10, and after the abundant swelling of fiber, sloughing high alkali liquid will
Fabric puts into ultrasonic Treatment tank, and the ultrasound wave sound intensity is 5W/cm2, supersonic frequency is 20kHz, middle process 30min, at general
Fabric after reason rinse with clear water after dewatered drying, then fabric backing is carried out napping, brushing processes, that makes in satin face floss is double
Face ultra-fine velvet fabric, can be used for nightwear, autumn in winter vest etc..From fabric, take out Lyocell fiber examine under a microscope, can
To see the fiber fines floss having divided.
Claims (10)
1. a preparation method for the ultra-fine pile fabrics of Lyocell fiber, including:
(1) Lyocell fiber fabric is carried out pre-treatment, be then placed in high alkali liquid, infiltrate after stirring, after obtaining swelling process
Lyocell fiber fabric；
(2), after the Lyocell fiber fabric after above-mentioned swelling processes sloughs high alkali liquid, ultrasonic Treatment, cleaning-drying, napping are carried out
Process, obtain the ultra-fine pile fabrics of Lyocell fiber.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 1, it is characterised in that: described
In step (1), Lyocell fiber fabric carries out pre-treatment particularly as follows: Lyocell fiber fabric is immersed sodium hydroxide solution
In boil 2-10min.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 2, it is characterised in that: described
The concentration of sodium hydroxide solution is 0.1mol/L～1.0mol/L.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 2, it is characterised in that: step
(1), after Lyocell fiber fabric carries out pre-treatment in, the alkali liquor of pre-treatment is sloughed.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 1, it is characterised in that: described
In step (1), the concentration of high alkali liquid is 1.0～5.0mol/L.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 1, it is characterised in that: step
(1) in, Lyocell fiber fabric carries out pre-treatment, is then placed in high alkali liquid, and bath raio is 1:5-50.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 1, it is characterised in that: described
In step (1), after stirring, infiltration is: mixing time is 1-10min；Infiltrating time is 10-30min.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 1, it is characterised in that: described
Step (2) is sloughed high alkali liquid and sloughs high alkali liquid for centrifugal or extruding.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 1, it is characterised in that: described
Ultrasonic Treatment in step (2) is particularly as follows: immerse in ultrasonic Treatment tank, and the ultrasound wave sound intensity is 0～10W/cm2, super
Acoustic frequency is 20～80kHz, and the process time is 10-60min.
The preparation method of the ultra-fine pile fabrics of a kind of Lyocell fiber the most according to claim 1, it is characterised in that: step
(2) in, napping carries out brushing process after processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315764.9A CN105926272A (en) | 2016-05-12 | 2016-05-12 | Preparation method of superfine-velvet Lyocell fiber fabric |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610315764.9A CN105926272A (en) | 2016-05-12 | 2016-05-12 | Preparation method of superfine-velvet Lyocell fiber fabric |
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| CN105926272A true CN105926272A (en) | 2016-09-07 |
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| CN201610315764.9A Pending CN105926272A (en) | 2016-05-12 | 2016-05-12 | Preparation method of superfine-velvet Lyocell fiber fabric |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108708220A (en) * | 2018-05-20 | 2018-10-26 | 复旦大学 | A kind of anti-fake hand-made paper of double wave length fluorescent and its production method |
| CN110172754A (en) * | 2019-02-26 | 2019-08-27 | 东华大学 | A kind of preparation method of antigen fibrillated fibers element fiber |
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| CN104005225A (en) * | 2014-06-05 | 2014-08-27 | 山东英利实业有限公司 | Method for reducing lyocell cellulosic fiber fibrillation tendency |
| CN104278469A (en) * | 2013-07-11 | 2015-01-14 | 无锡市唐帛服饰有限公司 | Sanding process for producing polyester peach skin effect of Lyocell fabric |
| CN104278534A (en) * | 2013-07-11 | 2015-01-14 | 无锡市唐帛服饰有限公司 | Process for producing polyester peach skin effect of Lyocell fabric |
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2016
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Patent Citations (3)
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| CN104278469A (en) * | 2013-07-11 | 2015-01-14 | 无锡市唐帛服饰有限公司 | Sanding process for producing polyester peach skin effect of Lyocell fabric |
| CN104278534A (en) * | 2013-07-11 | 2015-01-14 | 无锡市唐帛服饰有限公司 | Process for producing polyester peach skin effect of Lyocell fabric |
| CN104005225A (en) * | 2014-06-05 | 2014-08-27 | 山东英利实业有限公司 | Method for reducing lyocell cellulosic fiber fibrillation tendency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708220A (en) * | 2018-05-20 | 2018-10-26 | 复旦大学 | A kind of anti-fake hand-made paper of double wave length fluorescent and its production method |
| CN110172754A (en) * | 2019-02-26 | 2019-08-27 | 东华大学 | A kind of preparation method of antigen fibrillated fibers element fiber |
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Application publication date: 20160907 |