CN109056236A - The method of supercritical carbon dioxide extracting acrylic fibers surface finish - Google Patents
The method of supercritical carbon dioxide extracting acrylic fibers surface finish Download PDFInfo
- Publication number
- CN109056236A CN109056236A CN201810912686.XA CN201810912686A CN109056236A CN 109056236 A CN109056236 A CN 109056236A CN 201810912686 A CN201810912686 A CN 201810912686A CN 109056236 A CN109056236 A CN 109056236A
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- extraction
- acrylic fibers
- carbon dioxide
- supercritical carbon
- kettle
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- 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
-
- 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
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of method of supercritical carbon dioxide extracting acrylic fibers surface finish, supercritical carbon dioxide fluid flow velocity is 10-40g/min, and extraction temperature in the kettle is 50-100 DEG C, and pressure is 10-20MPa, extraction time 30-120min in extraction kettle.It is extracted using supercritical carbon dioxide extracting system, the system uses horizontal extraction kettle.The system also includes separating stills I and separating still II.The present invention solves water resource waste problem, horizontal extraction kettle and separating still I caused by traditional acrylic fibers high temperature and pressure alkali process oil removing and the improvement of separating still II also improves the extraction yield of acrylic fabric finish extraction.Using oil removing process of the invention, the acrylic fibers for industrialization production can be obtained, treated, and product does not need the post-processing such as to be cleaned, dried, and realizes the anhydrous removal acrylic fibers surface finish of overall process, saves production cost, improves dyeing quality, reduces environmental pollution.
Description
Technical field
It is of the invention be related to technical field of textile printing, in particular to supercritical carbon dioxide extracting acrylic fibers surface finish
Method.
Background technique
Acrylic fabric is free of natural impurity, and pre-treatment is simple, need to only remove and the slurry used in process such as make in weaving
Expect and the greasy dirt stain being stained with etc..The dye of positive ion is used in the dyeing and printing process of acrylic fabric, and most of detergent are electropositivity,
If acrylic fabric pre-treatment cationic detegent, excessive cation can be gathered in fiber surface after washing, and sun from
Sub- surfactant can be combined with fiber negatively charged in water-bath, reduce dyestuff to the Percentage bound of fiber, after leading to stamp
Tinctorial yield reduce, and reduce color fastness.And handled acrylic fibers then will not be in fiber surface area for supercritical carbon dioxide
Polycation does not influence printing and dyeing post-processing.The removal of acrylic fibers oil agent is the key that its one step of pre-treatment, the residual of finish
The dyeing and finishing effect of fabric is affected, detergent and soda ash (Na are usually used2CO3) in 60 DEG C of progress kierings, it can remove on long filament
Spinning oil and polyvinyl alcohol or other synthetic slurries on lubricant and woven.But the processing mode wastes largely
Water, and a large amount of alkali waste water can be generated, cause environmental pollution, and traditional method is more expended due to the complexity of its technique
The energy.
China is the country of a shortage of water resources, and water resource environment is also constantly deteriorating, along with the waste with water, water
Resource situation is even more to allow of no optimist.It is additional to height to restrict acrylic fibers for the remaining influence of the acrylic fibers oil agent dyeing and finishing effect of fabric
It is worth the development of textile.Requirement of the 2l century to property easy to control, high efficiency, nonstaining property and recyclable property is more and more prominent
Out.The supercritical carbon dioxide extraction method of last century Mo is developed in because of outstanding features quilts such as its is pollution-free, short route, high efficiency
It is considered a kind of " green, sustainable development " technology, and by favor.
Summary of the invention
One of the objects of the present invention is to provide a kind of pollution-free, short routes, efficient removal acrylic fibers surface finish
Method, above-mentioned purpose of the invention adopt the following technical scheme that realize.
A method of removal acrylic fibers surface finish, it is characterised in that: acrylic fibers are removed using supercritical carbon dioxide extracting
On finish.
Further, in the above-mentioned technical solutions, the extraction conditions of the extraction process are as follows: supercritical carbon dioxide fluid
Flow velocity is 10-40g/min, and extraction temperature in the kettle is 50-100 DEG C, and pressure is 10-20MPa, extraction time 30- in extraction kettle
120min。
Further, in the above-mentioned technical solutions, it is extracted using supercritical carbon dioxide extracting system, the system
Using horizontal extraction kettle 9.It is extracted, is solved due to acrylic fibers itself weight by finish of the horizontal extraction kettle to acrylic fabric surface
Amount generates packing phenomenon in vertical extraction kettle, so that leading to the problem of can not be such that acrylic fibers extraction yield is optimal.The horizontal extraction
Kettle 9 and heater 8, magnetic force circulating pump 10 is taken to form circulating system.
Further, in the above-mentioned technical solutions, the system comprises separating stills I 11 and separating still II 12.Compared to biography
The level-one separating still of the supercritical carbon dioxide extracting system of system, present invention employs the second-order separation kettle, pressure can be obtained in kettle
To sharing, keep pressure relatively small, extraction yield is to be improved.
Further, in the above-mentioned technical solutions, supercritical carbon dioxide extracting acrylic fibers surface Spin Finish System, carbon dioxide
Horizontal extraction kettle is reached by carbon dioxide booster pump and preheater, is separated after the reaction was completed by the second-order separation kettle, most
Carbon dioxide returns to carbon dioxide storage tank therewith afterwards.
Decompression separates finish with carbon dioxide gas after extraction, takes out extraction sample, and sample is dry without cleaning
Dry equal post-processing.Extraction yield mainly passes through extraction time, extraction temperature, extracting pressure, the variation of the factors such as carbon dioxide flow rate
To control.Wherein, the metering of the supercritical carbon dioxide fluid flow velocity is the supercriticality dioxy to flow through per minute
The quality for changing carbon is standard.
The extraction temperature in the kettle is 70-100 DEG C as a preferred technical solution,.
Pressure is 15-20MPa in the extraction kettle as a preferred technical solution,.
The extraction time is 60-120min as a preferred technical solution,.
Beneficial effects of the present invention: the present invention provides a kind of new supercritical carbon dioxide extracting acrylic fibers surface finish system
System, which is equipped with CO 2 fluid entrance using horizontal extraction kettle, in the bottom of autoclave body, and top is equipped with outlet,
Bottom silicon dioxide carbon flow body flows into autoclave body when extraction, impacts acrylic fibers and carries out extraction surface finish, the system in a manner of non-static
Using the second-order separation kettle, in kettle, pressure is available shares, to improve extraction yield.It can also be by controlling supercritical carbon dioxide
The flow velocity of fluid realizes the variation of air-flow, so that acrylic fibers be made to move under the gear shift shock of air-flow, avoids acrylic fibers weight
The extraction at folded place stops.Using extraction process of the invention, the acrylic fibers used for subsequent dyeing can be obtained, it is extracted
Product does not need the post-processing such as to be cleaned, dried, and realizes the anhydrous removal acrylic fibers surface finish of overall process, saves production cost,
It improves and removes oil quality, reduce environmental pollution.
Detailed description of the invention
Fig. 1 is the schematic diagram of supercritical carbon dioxide extracting acrylic fibers of the present invention surface Spin Finish System；
In figure, 1, CO2Storage tank, 2, clarifier, 3, preheater, 4, liquid delivery pump, 5, cosolvent tank, 6, ultrasonic atomization
Device, 7, CO2Booster pump, 8, heater, 9, horizontal extraction kettle, 10, magnetic force circulating pump, 11, separating still I, 12, separating still II.
Specific embodiment
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
Embodiment 1-9
A kind of supercritical carbon dioxide extracting acrylic fibers surface Spin Finish System, as shown in Figure 1, carbon dioxide is stored up from carbon dioxide
It is exported in tank 1, horizontal extraction kettle 9 is reached by clarifier 2, carbon dioxide booster pump 7 and preheater 3, is heated in reaction process
Device 8, magnetic force circulating pump 10, horizontal extraction kettle 9 belong to circulating system, and heater 8 constantly provides corresponding pressure and temperature,
After the reaction was completed by separating still I 11, separating still II 12 carries out secondary separation, and last carbon dioxide returns to carbon dioxide storage therewith
In tank 1.
It is carried out in horizontal extraction kettle 9 using supercritical carbon dioxide extracting acrylic fibers surface Spin Finish System as shown in Figure 1
Acrylic fibers surface finish extraction process includes the following steps:
1, the acrylic fabric of suitable dimension is cut；
2, the horizontal extraction kettle for opening supercritical carbon dioxide extracting acrylic fibers surface Spin Finish System, using in horizontal extraction kettle
Pull ring that the lid with holes of cylinder is equipped with proposes entire cylinder, is placed on acrylic fabric is smooth in cylinder, puts back to cylinder；
3, refrigeration system and compression system are opened, more than carbon dioxide pressurization to critical pressure, then passes through heating system
Carbon dioxide is heated to critical point temperature or more, carbon dioxide is made to reach supercriticality；
4, supercritical carbon dioxide is passed through in the cylinder of horizontal extraction kettle with the speed of 10-40g/min, is using heating
System makes horizontal extraction temperature in the kettle reach 50-100 DEG C, keeps temperature constant；High-pressure system is opened, pressure in horizontal extraction kettle is made
Reach 10-20MPa, keeps pressure constant, extract 30-120min under constant temperature and pressure；
5, high-pressure pump, the circulatory system and heating system are closed after reaching setting extraction time, then discharge and makes fluid
Pressure reaches 7.9Mpa or less, temperature reaches 30 degree or less the recycling for carrying out carbon dioxide；Continue discharge to normality, takes out acrylic fibers
Fabric；The speed of the supercritical carbon dioxide in horizontal extraction kettle is wherein passed through with the supercritical carbon dioxide with finish by crouching
The speed that formula extraction kettle is passed through the second-order separation kettle is identical, guarantees CO 2 fluid in supercritical carbon dioxide extracting acrylic fibers with this
Dynamic equilibrium in the Spin Finish System of surface.
Table 1 is the extraction conditions used in embodiment 1-9, specifically: extraction temperature, extracting pressure, extraction time and two
The flow of carbon oxide fluid.
The extraction conditions used in 1 embodiment 1-9 of table
Table 2 is the characterisitic parameter for the product being obtained by extraction under the extraction conditions using embodiment 1-9, specifically: according to GB/
The moisture content and oil content of T 6504-2008 detection extraction acrylic fibers, detect the white of extraction acrylic fibers according to GB/T 17644-2008
Degree.
The characterisitic parameter for the product being obtained by extraction under the extraction conditions of the use of table 2. embodiment 1-9
As it can be seen that carrying out the extraction of acrylic fibers surface finish using method of the invention, apparent moisture content is the result of table 2
1.83-2.14%, oil content 0.95-1.06%, acrylic fibers surface oil content is 7.26% before handling, and oil removal rate reaches
86.3%, reach effect similar in conventional method, illustrates that this method can successfully remove acrylic fibers surface finish by process conditions, and
Meet the requirement of factory, and its whiteness and feel are improved, whiteness is 70% or more.
Claims (5)
1. a kind of method for removing acrylic fibers surface finish, it is characterised in that: using on supercritical carbon dioxide extracting removal acrylic fibers
Finish.
2. removing the method for acrylic fibers surface finish according to claim 1, it is characterised in that the extraction item of the extraction process
Part are as follows: supercritical carbon dioxide fluid flow velocity is 10-40g/min, and extraction temperature in the kettle is 50-100 DEG C, and pressure is in extraction kettle
10-20MPa, extraction time 30-120min.
3. removing the method for acrylic fibers surface finish according to claim 1, it is characterised in that: extracted using supercritical carbon dioxide
System is taken to be extracted, the extracting system uses horizontal extraction kettle (9).
4. according to claim 3 remove acrylic fibers surface finish method, it is characterised in that: the horizontal extraction kettle (9) with
Heater (8), magnetic force circulating pump (10) form circulating system.
5. removing the method for acrylic fibers surface finish according to claim 2, it is characterised in that: the system also includes separating stills
I (11) and separating still II (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810912686.XA CN109056236A (en) | 2018-08-10 | 2018-08-10 | The method of supercritical carbon dioxide extracting acrylic fibers surface finish |
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| CN201810912686.XA CN109056236A (en) | 2018-08-10 | 2018-08-10 | The method of supercritical carbon dioxide extracting acrylic fibers surface finish |
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| CN109056236A true CN109056236A (en) | 2018-12-21 |
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| CN201810912686.XA Pending CN109056236A (en) | 2018-08-10 | 2018-08-10 | The method of supercritical carbon dioxide extracting acrylic fibers surface finish |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021143455A (en) * | 2021-06-22 | 2021-09-24 | 伊澤タオル株式会社 | Method for scouring fiber product, and method for scouring fiber product and producing scoured fiber product |
| CN113941171A (en) * | 2021-11-18 | 2022-01-18 | 浙江金斯顿流体设备有限公司 | Supercritical extraction and separation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021143455A (en) * | 2021-06-22 | 2021-09-24 | 伊澤タオル株式会社 | Method for scouring fiber product, and method for scouring fiber product and producing scoured fiber product |
| JP7162850B2 (en) | 2021-06-22 | 2022-10-31 | 伊澤タオル株式会社 | Method for scouring textiles, and method for scouring textiles to produce textiles after scouring |
| WO2022270254A1 (en) * | 2021-06-22 | 2022-12-29 | 伊澤タオル株式会社 | Method for scouring fiber product and method for scouring fiber product to produce scoured fiber product |
| CN113941171A (en) * | 2021-11-18 | 2022-01-18 | 浙江金斯顿流体设备有限公司 | Supercritical extraction and separation device |
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Application publication date: 20181221 |