CN104452319A - Desizing pretreatment method of textile - Google Patents
Desizing pretreatment method of textile Download PDFInfo
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- CN104452319A CN104452319A CN201410552860.6A CN201410552860A CN104452319A CN 104452319 A CN104452319 A CN 104452319A CN 201410552860 A CN201410552860 A CN 201410552860A CN 104452319 A CN104452319 A CN 104452319A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
- D06L1/06—De-sizing
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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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Treatment Of Fiber Materials (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Enzymes And Modification Thereof (AREA)
Abstract
The invention discloses a desizing pretreatment method of textile, which belongs to the technical field of textile dyeing and finishing processing, and is designed for solving the problems of high water consumption, large waste water discharge amount, and the like in the traditional desizing technology. The method comprises the following steps: A. dissolving a surface active agent into a mixed solution of ethyl alcohol and water; B. feeding desizing enzyme into the mixed solution, and stirring until the system is clear to obtain desizing working liquid; C. putting the desizing working liquid into a supercritical carbon dioxide fluid treatment system; D. enabling the desizing working liquid to form microemulsion by a supercritical carbon dioxide medium, and carrying out desizing pretreatment on the textile under the conditions that the temperature is 30-95 DEG C, the pressure is 6-30 MPa, and the total pretreatment time is 0.5-24.0 hours. According to the desizing pretreatment method, the technology is simple, and the desizing pretreatment for the textile can be realized; the desizing efficiency of enzyme in the supercritical carbon dioxide medium can be improved by controlling the reaction parameters such as temperature, pressure and treatment time, so that the energy is saved, and the environment is protected.
Description
Technical field
The invention belongs to textile dyeing and finishing processing technique field, particularly relate to a kind of supercritical carbon dioxide fluid that utilizes and the method for destarch pre-treatment is carried out to textiles.
Background technology
Supercritical carbon dioxide fluid enzyme desizing technology, has the feature of the cleanly production such as significant ecology, environmental protection and energy-saving and emission-reduction, significant to the present situation such as high pollution, high energy consumption changing traditional textile pre-treatment processing.At present, biology enzyme has broad application prospects in dyeing and finishing processing, because enzyme preparation is as a kind of biologic product, nontoxic, its Application and Development has complied with the requirement of green processing and sustainable development.Wherein the application of destarch enzyme is comparatively ripe and extensively, more and more accept by colourist, and be applied to the impurity such as the starch slurry removed on fabric.Wherein there is synergy during some enzyme conbined usage, such as, the epidermal area of pectase degraded substrate, can be cellulase and produces more multiaction site; And the degradation of cellulase can make the pectic substance in more multilist cortex expose, and with pectase effect.
But the enzyme desizing of textiles in supercritical carbon dioxide fluid, but wants complicated and much more difficult relatively.Its difficult point is how to make the high molecular protein compound-enzyme of polarity, enters in hydrophobic High-pressure supercritical CO 2 fluid medium, and can keep its greater activity.Secondly, applicable its is provided to carry out chemical environment and the condition of enzymic catalytic reaction how to the enzyme in High-pressure supercritical CO 2 medium.In addition, the most conventional slurry that textiles uses is all polarity macromolecular compound, before and after textile fiber surface filming, all cannot carry out expansion and and then dissolve removal in hydrophobic supercritical carbon dioxide fluid.Therefore, for a long time, supercritical carbon dioxide fluid obtains more investigation and application as dyeing medium, but in the destarch pre-treatment of textiles, the investigation and application of especially enzyme desizing in supercritical carbon dioxide fluid, there is no people and set foot in viewed from existing document.But destarch pre-treatment is the important manufacturing procedure of textile production, traditional textiles destarch pre-treatment then needs to consume a large amount of water, energy and chemicals, and produces a large amount of high-concentration waste water, causes serious threat to protection of resources and ecological environment.
Therefore, research and develop textiles in supercritical carbon dioxide fluid medium, especially natural fabric carried out to the method for efficient destarch processing, to dyeing and finishing process technologies such as the anhydrous destarch pre-treatments of implementation textiles, thoroughly realize the cleaner production of textile printing and dyeing enterprises, have very important significance and wide market prospects.
Summary of the invention
The object of the invention is to propose a kind of destarch pre-treatment realized textiles, improve the destarch efficiency of enzyme in supercritical CO 2 medium, the destarch pre-treating method of the textiles of energy-conservation environmental protection again.
For reaching this object, the present invention by the following technical solutions:
The invention provides a kind of destarch pre-treating method of textiles, comprise the following steps:
A, proper amount of surfactant is dissolved in the mixed solution of second alcohol and water of certain volume ratio;
B, appropriate destarch enzyme to be added in described mixed solution, and be stirred to system clarification, obtained destarch working solution;
C, the desizing liquid described destarch working solution being placed in desizing device store in still, and described desizing device are placed in supercritical carbon dioxide fluid treatment system;
D, described destarch working solution utilize supercritical CO 2 medium original position to form microemulsion, and are 30 DEG C-95 DEG C in temperature, and pressure is 6Mpa-30Mpa, and destarch process total time is carry out destarch pre-treatment to pending textiles under the condition of 0.5h-24.0h.
Further, in described steps A, described surfactant is succinate sodium 2-ethylhexyl (AOT).
Further, in described steps A, the volume ratio of second alcohol and water is 1: 4.
Further, in described step B, described destarch enzyme is the composition of a kind of or its any ratio in cellulase, pectase, lipase, α-amylase.
Further, described destarch enzyme is the composition that cellulase, pectase, lipase and α-amylase form with 1: 1: 1: 1 ratio.
Further, in described step B, described destarch working solution also comprises the buffer system formed with citric acid and salting liquid thereof, and its system pH is 4.0-10.0.
Further, in described step D, described destarch process total time comprises fluid circulation timei and static processing time, and the time ratio of fluid circulation and static process is 1: 20-10: 1.
Beneficial effect of the present invention is:
The invention provides a kind of destarch pre-treating method of textiles, destarch working solution containing destarch enzyme utilizes hydrophobic supercritical CO 2 medium original position to form microemulsion, while microemulsion penetrates cotton products with fluid, discharge active destarch enzyme, thus realize the destarch pre-treatment to green compact textiles.
This method is by controlling response parameter, as reaction temperature, pressure and destarch process total time etc., effectively can improve the destarch efficiency of enzyme in supercritical CO 2 medium, and instrument and supplies is simple, easy to operate, reaction temperature and, without the need at high temperature carrying out, avoid large water gaging in traditional desizing, heat and the application of high concentration alkali, and have efficiently, green, the feature such as environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of the desizing device of textiles in supercritical carbon dioxide fluid of the embodiment of the present invention one.
In figure: 1, desizing liquid stores still; 11, fluid distributor; 111, circulation of fluid inlet tube; 112, circulation of fluid outlet; 2, destarch still; 21, textiles wireline reel; 3, destarch working solution; 4, pending textiles; 5, circulation of fluid outlet; 6, fluid flow guiding cover; 7, filter; 8, jockey.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment one
The invention provides a kind of destarch pre-treating method of textiles, this enzyme desizing pre-treating method adopts the supercritical carbon dioxide fluid desizing device of structure as shown in Figure 1 to realize.This desizing device comprises desizing liquid and stores still 1 and store by jockey 8 and desizing liquid the destarch still 2 that still 1 is tightly connected.
It is cylindrical shape kettle that desizing liquid stores still 1, desizing liquid stores the tubular fluid distributor 11 being provided with inversion " mountain " type in still 1, it is primarily of three the pipeline compositions be interconnected, the pipeline being positioned at center is circulation of fluid inlet tube 111, and the bottom of circulation of fluid inlet tube 111 is connected with the supercritical carbon dioxide fluid treatment system (not shown) of band circulating pump; Two pipelines being positioned at both sides are that the mouth of pipe of circulation of fluid outlet 112, two circulation of fluid outlets 112 bends towards below, and the open at one end of below all stretches into desizing liquid stores below the liquid level of the destarch working solution 3 in still 1.The top of destarch still 2 is provided with circulation of fluid outlet 5, and circulation of fluid outlet 5 is connected with supercritical carbon dioxide fluid treatment system.
Destarch still 2 is cylindrical shape kettle too, is provided with the textiles wireline reel 21 of inner hollow in destarch still 2, textiles wireline reel 21 is wound with pending textiles 4, the bottom end opening top closure of textiles wireline reel 21, and its axle sidewall offers through hole.Be connected with tubaeform fluid flow guiding cover 6 near the bottom of the textiles wireline reel 21 of jockey 8, the below of fluid flow guiding cover 6 is provided with filter 7, effectively can filter the precipitated impurities contained in destarch working solution 3 and circulation of fluid mixed liquor.In the present embodiment, filter 7 is preferably covered with the single or multiple lift board-like material of 50-2000 order micropore.
The axle body of textiles wireline reel 21 adopts Teflon or non heat conductivity material to be made, or its surfaces externally and internally adopts Teflon or non heat conductivity material to make, prevent textiles wireline reel to flow through because of the destarch working solution of uniform temperature and circulation of fluid mixed liquor and produced the phenomenon of cause thermal damage, extend the service life of textiles wireline reel.
The top of destarch still 2 is provided with circulation of fluid outlet 5, and circulation of fluid outlet 5 is connected with the supercritical carbon dioxide fluid treatment system of band circulating device.Desizing liquid stores still 1 and destarch still 2 realizes the connection with supercritical carbon dioxide fluid treatment system by above-mentioned circulation of fluid inlet tube 111 and circulation of fluid outlet 5.
Add man-hour, destarch working solution 3 being added to desizing liquid stores in still 1, the mouth of pipe of two circulation of fluid outlets 112 of fluid distributor 11 is placed in destarch working solution 3, pending textiles 4 is entirely wound on textiles wireline reel 21 in loose formula state, and overlap the seamless netted infantees of last layer at the outermost layer of winding up textile product, then be placed in destarch still 2, and the openend of textiles wireline reel 21 is well communicated with fluid flow guiding cover 6 downwards.
The destarch pre-treating method of a kind of textiles that the present embodiment provides, comprises the following steps:
A, by 0.6g surfactant succinate sodium 2-ethylhexyl (AOT), be dissolved in volume ratio be 1: 4 10mL ethanol and 40mL water mixed solution in.
B, by cellulase, pectase, lipase and α-amylase with 1: 1: 1: 1 quality than Homogeneous phase mixing, and get appropriate mixed enzyme and be dissolved in above-mentioned mixed solution, and be stirred to system clarification, obtained destarch working solution 3; Wherein, the weight of pending textiles 4 is 2g, destarch enzyme is the composition of the cellulase of each 0.01g, pectase, lipase and α-amylase, and destarch working solution 3 also comprises the buffer system formed with citric acid and salting liquid thereof, and its system pH can be controlled in the scope of 4.0-10.0.
C, destarch working solution 3 is placed in desizing liquid and stores in still 1, the pending textiles 4 be wound on textiles wireline reel 21 is placed in destarch still 2, desizing liquid stores still 1 and destarch still 2 and to be tightly connected formation desizing device, the open at one end of guarantee textiles wireline reel 21 and destarch working solution 3 liquid level keep the distance of 45cm, to prevent because the stirring of fluid distributor and the effect of carrying secretly of fluid make destarch working solution and textiles occur directly to contact, and desizing device is placed in the supercritical carbon dioxide fluid device of band circulating device.
Circulating device is started after D, closed system, destarch working solution 3 utilizes supercritical CO 2 medium original position to form microemulsion, and be 30 DEG C-95 DEG C in temperature, pressure is 6Mpa-30Mpa, and destarch process total time is carry out destarch pre-treatment to pending textiles 4 under the condition of 0.5h-24.0h.
Concrete, desizing device is connected with the supercritical carbon dioxide fluid treatment system of circulation of fluid outlet 5 with band circulating pump through circulation of fluid inlet tube 111, or desizing device is placed in the supercritical carbon dioxide fluid treating apparatus of band circulating pump, after closed system, by predetermined desizing flow process and parameter, (reaction temperature is 30 DEG C again, pressure is 13Mpa, and the destarch processing time is 1h, fluid circulation and the time ratio of static process is adopted to be to pending textiles 4 carry out destarch process at 1: 10), start the circulating pump in external supercritical carbon dioxide fluid treatment system, make circulation of fluid store tubular fluid distributor 11 in still 1 by desizing liquid to mix with destarch working solution 3 and fully contact, and microemulsion is formed under the effect of surfactant, destarch enzyme is transferred and enters in hydrophobic fluid, and and then flow in textiles wireline reel 21, had an effect by through hole and the pending textiles 4 be wound on textiles wireline reel 21, complete destarch process.
This destarch pre-treating method improves the reactivity of destarch enzyme to fiber spreading mass and impurity, improves the destarch efficiency of textiles slurry, effectively achieves the destarch pre-treatment to textiles slurry in supercritical carbon dioxide fluid medium.
After destarch completes, fluid stops circulation, and carries out pressure release to supercritical carbon dioxide fluid treatment system, utilizes external separation and recovery system carry out being separated to destarch working solution 3 and circulation of fluid and reclaim.Pressure release terminates rear unlatching jockey 8, and takes out the textiles after enzyme desizing process.Desizing liquid stores mixed solution residual in still 1 and can reclaim, or after adding component, carry out continuous using.
The weight-loss ratio of the textiles after destarch process and capillary effect value are tested, wherein weight-loss ratio and capillary effect value method of testing as follows:
Weight-loss ratio is tested: taking-up cloth specimen after destarch completes, and after water cleaning 2-3 time, textiles being placed in electric drying oven with forced convection is bake and bank up with earth 120min under the condition of 105 DEG C in temperature, uses sealing bag seal sample, in drier, balances more than 24h, its weight of weighing.Textiles before destarch processes in an identical manner, by the weight of textiles before and after contrast destarch process, obtains the weight-loss ratio of textiles.
Capillary effect value is tested: measure with reference to textile industry standard FZ/T01071-2008 textiles capillary effect test method, get the fabric after destarch process, 15min tested by ZBW04019 type capillary effect tester.
Obtain result after tested, the textiles weight-loss ratio through destarch process is 5.8%, and capillary effect value is 6.0cm.
Embodiment two:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 50 DEG C, and pressure is 13Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 6.0%, and capillary effect value is 7.0em.
Embodiment three:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 60 DEG C, and pressure is 13Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 4.2%, and capillary effect value is 6.1cm.
Embodiment four:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 80 DEG C, and pressure is 13Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 1.6%, and capillary effect value is 3.2cm.
Embodiment five:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 90 DEG C, and pressure is 13Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 0.4%, and capillary effect value is 1.2cm.
Embodiment six:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 7Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 5.2%, and capillary effect value is 6.4cm.
Embodiment seven:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 10Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 5.6%, and capillary effect value is 6.7cm.
Embodiment eight:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 13Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 6.8%, and capillary effect value is 7.5cm.
Embodiment nine:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 16Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 6.0%, and capillary effect value is 7.2cm.
Embodiment ten:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 19Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 5.3%, and capillary effect value is 6.0cm.
Embodiment 11:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 22Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 4.8%, and capillary effect value is 5.8cm.
Embodiment 12:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 13Mpa, and destarch process total time is 0.5h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 5.4%, and capillary effect value is 4.2cm.
Embodiment 13:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 13Mpa, and destarch process total time is 1h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 6.0%, and capillary effect value is 6.8cm.
Embodiment 14:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 13Mpa, and destarch process total time is 1.5h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 8.4%, and capillary effect value is 7.6cm.
Embodiment 15:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 13Mpa, and destarch process total time is 2h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 8.5%, and capillary effect value is 7.7cm.
Embodiment 16:
The invention provides a kind of destarch pre-treating method of textiles, its enzyme desizing pre-treating method is substantially identical with the destarch pre-treating method described in embodiment one, does not repeat them here.
Difference part is: the reaction temperature of the present embodiment is 40 DEG C, and pressure is 13Mpa, and destarch process total time is 3h.
The present embodiment through the weight-loss ratio of the textiles of destarch process and capillary effect value test result is: weight-loss ratio is 8.6%, and capillary effect value is 7.9cm.
The weight-loss ratio of table 1 textiles and the relation table of capillary effect value and treatment temperature
Can be found out by embodiment one to embodiment five and table 1, when treatment temperature is lower, not easily there is inactivation in enzyme, activity is higher, and destarch is effective, when temperature is at about 40 DEG C, weight-loss ratio and the capillary effect value of textiles reach maximum, destarch effect is best, after increase along with the continuation of temperature, destarch effect is deteriorated gradually.It is much lower that this temperature needed for destarch pre-treating method compares to conventional destarch, can reduce the use of heat energy greatly, reduce cost and realize energy-saving and emission-reduction.
As can be seen from embodiment six to embodiment 11 and table 2, under different system pressures, this desizing method all has good destarch effect, and 13Mpa is a lower pressure, reaching than being easier in actual production, therefore, there is good prospects for commercial application.
The weight-loss ratio of table 2 textiles and the relation table of capillary effect value and system pressure
As can be seen from embodiment 10 two to embodiment 16 and table 3, the processing time is longer, and destarch effect is more obvious.In actual production, due to cost, can not stack process for a long time, so under the prerequisite ensureing product quality, the selected suitable processing time is very important.
The weight-loss ratio of table 3 textiles and the relation table in capillary effect value and processing time
In destarch working solution of the present invention, the volume ratio of ethanol and water mixed solution can be controlled in the scope of 1: 2-1: 5.In addition, the time ratio of supercritical carbon dioxide fluid circulation and static process, in the scope of 1: 20-10: 1, can do further optimization to the destarch treatment effect of textiles.
The destarch pre-treating method of textiles provided by the invention, operating procedure is easy, the low cost of manufacture of production equipment, enzyme desizing avoids prior art reaction system at desizing processes middle and high concentration, adding of a large amount of alkali, especially highly corrosive, the use of strong oxidizing property caustic soda, not only reduce waste resource thus, reduce production cost, and to production equipment, technological operation and the aspect such as control and production safety all simplify requirement, meanwhile, achieve anhydrous destarch, due to the non-combustible nonirritant of carbon dioxide in desizing processes, safety is ecological nontoxic, reusable, instead of the medium of water as desizing processes, achieve energy-saving and emission-reduction, and significantly reduce production cost, there is higher actual application value, novelty and the feature of environmental protection.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (7)
1. a destarch pre-treating method for textiles, is characterized in that: comprise the following steps:
A, proper amount of surfactant is dissolved in the mixed solution of second alcohol and water of certain volume ratio;
B, appropriate destarch enzyme to be added in described mixed solution, and be stirred to system clarification, obtained destarch working solution;
C, the desizing liquid described destarch working solution being placed in desizing device store in still, and described desizing device are placed in supercritical carbon dioxide fluid treatment system;
D, described destarch working solution utilize supercritical CO 2 medium original position to form microemulsion, and are 30 DEG C-95 DEG C in temperature, and pressure is 6Mpa-30Mpa, and destarch process total time is carry out destarch pre-treatment to pending textiles under the condition of 0.5h-24.0h.
2. the destarch pre-treating method of textiles according to claim 1, is characterized in that: in described steps A, and described surfactant is succinate sodium 2-ethylhexyl (AOT).
3. the destarch pre-treating method of textiles according to claim 1, is characterized in that: in described steps A, and the volume ratio of second alcohol and water is 1: 4.
4. the destarch pre-treating method of textiles according to claim 1, is characterized in that: in described step B, and described destarch enzyme is the composition of a kind of or its any ratio in cellulase, pectase, lipase, α-amylase.
5. the destarch pre-treating method of textiles according to claim 4, is characterized in that: described destarch enzyme is the composition that cellulase, pectase, lipase and α-amylase form with 1: 1: 1: 1 ratio.
6. the destarch pre-treating method of textiles according to claim 1, is characterized in that: in described step B, and described destarch working solution also comprises the buffer system formed with citric acid and salting liquid thereof, and its system pH is 4.0-10.0.
7. the destarch pre-treating method of textiles according to claim 1, it is characterized in that: in described step D, described destarch process total time comprises fluid circulation timei and static processing time, and the time ratio of fluid circulation and static process is 1: 20-10: 1.
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| CN201410552860.6A CN104452319B (en) | 2014-10-17 | A kind of desizing pre-treating method of textile | |
| PCT/CN2014/093364 WO2016058257A1 (en) | 2014-10-17 | 2014-12-09 | Textile desizing pretreatment method |
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| CN201410552860.6A CN104452319B (en) | 2014-10-17 | A kind of desizing pre-treating method of textile |
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| CN104452319A true CN104452319A (en) | 2015-03-25 |
| CN104452319B CN104452319B (en) | 2017-01-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058252A1 (en) * | 2014-10-17 | 2016-04-21 | 苏州大学 | Method for enzyme desizing cotton in a supercritical carbon dioxide fluid |
| CN105568591A (en) * | 2016-01-25 | 2016-05-11 | 苏州大学 | Hydrogen peroxide desizing pretreatment method for cotton in supercritical carbon dioxide fluid |
| CN105735014A (en) * | 2016-04-01 | 2016-07-06 | 太仓市锦达印染有限公司 | Dyeing and finishing process of PLA fiber/pearl fiber blended fabric |
| CN107099995A (en) * | 2017-03-24 | 2017-08-29 | 苏州大学 | The supercritical fluid phase transfer catalysis (PTC) desizing method of textile |
| WO2020097965A1 (en) * | 2018-11-14 | 2020-05-22 | 苏州大学 | Supercritical carbon dioxide fluid mercerizing treatment method for wool product |
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| CN105735014A (en) * | 2016-04-01 | 2016-07-06 | 太仓市锦达印染有限公司 | Dyeing and finishing process of PLA fiber/pearl fiber blended fabric |
| CN107099995A (en) * | 2017-03-24 | 2017-08-29 | 苏州大学 | The supercritical fluid phase transfer catalysis (PTC) desizing method of textile |
| CN107099995B (en) * | 2017-03-24 | 2019-11-12 | 苏州大学 | The supercritical fluid phase transfer catalysis (PTC) desizing method of textile |
| WO2020097965A1 (en) * | 2018-11-14 | 2020-05-22 | 苏州大学 | Supercritical carbon dioxide fluid mercerizing treatment method for wool product |
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