CN104195837B - A kind of based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method - Google Patents
A kind of based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method Download PDFInfo
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Abstract
The present invention relates to a kind of based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, its feature is that the operation of this wool carpet mercerising method comprises: the cleaning of wool carpet, Protease Treatment, scale mechanical stripping, the process of protease inactivation and washing, in order to improve the efficiency of proteases on wool fiber hydrolysis, oxidation or reduction pretreatment operation can also be added before Protease Treatment operation, soft or the level and smooth feel of rear wool carpet is arranged in order to give, soft finish operation is added after the process of protease inactivation and washing step of wool carpet.This mercerising method is based on the decrement treatment of protease and mechanical external force synergy, appropriateness peels off wool scale, reach the object to wool fabric mercerized finish, and the chemical action reduced due to simple dependent protein enzyme and other chemicals and cause the undue damage of wool, and the pollution that chloridization process brings environment.
Description
Technical field
The present invention relates to wool carpet mercerising technical field, be specifically related to a kind of based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method.
Background technology
The carpet made with other fibers is compared, and wool carpet outward appearance is luxurious, and quality is fluffy, and the warm and high resilience of sense of touch is the indoor textile product of a class top grade.But the structure of wool fibre is special, and surface exists scale layer, cause wool textile goods ubiquity wash shrink, dress exist prodding and itching feeling and dyeing difficulty etc. shortcoming.And for wool carpet, if appropriateness wool fibre scale can be divested, then because wool fibre fineness declines, and the skin-friction coefficient of fiber declines, carpet morphological stability in use can be made to increase, carpet sense of touch soft smooth more, gloss is softer, and therefore and greatly the added value of carpet also can improve.Therefore, wool textile industry custom calls the process destroying or peel off wool surface scale mercerized finish or the processing of wool fabric.
At present, in the mercerising process of wool fabric, removal wool surfaces scale is effective and widely used method carries out chlorination process to wool fabric, namely adopts chlorination reagent to destroy or removes wool surfaces scale.The chemicals of many chlorine systems, as clorox, sodium chlorite, chloramines, chlorosulfuric acid, DCCA salt, TCCA etc., may be used in the chlorination mercerising processing of wool.Because these chlorination reagents are all weak oxidants, therefore, be chlorination and the coefficient result of oxidation reaction in essence to the destruction of wool scale.Although the chlorination wool mercerization comparative maturity at present in industry, and reach that certain wool strength damage is little, the effect of good finishing effect, but this chloridization process exists wool all the time inhales the shortcomings such as chlorine turns yellow and feel is coarse, especially this chloridization process can produce poisonous, absorbable organohalogen compounds (AbsorbableOrganicHalogen, be called for short AOX), cause serious ecological environmental pollution.Therefore, develop the little or free of contamination Novel wool mercerized finish technique of environmental pollution to have great importance.
And enzyme to be one have active and narrow spectrum biocatalyst, itself be also protein, biodegradable, and the condition of enzyme catalysis is quite gentle.Therefore, from environmental protection and energy-conservation aspect, enzyme has application potential in textile dyeing and finishing processing, and utilizes the catalyzing hydrolysis of proteases on wool thus destroy even Boli scale and also day by day cause scholar to pay attention to.But there is significantly selective and inhomogeneity in the catalyzing hydrolysis of proteases on wool.Because each horn cell of wool fibre, cortex cell and be spaced from each other by cell membrane complexes (CMC) between horn cell and cortex cell, and run through fibrous inside primarily of the CMC of the intercellular binding of non-keratin matter, lipides and Impedance Membrane composition, form the inner unique continuous print phase of wool fibre.Enzyme molecule to the hydrolysis of fiber be first via run through whole fibrous inside and extend to surface cell membrane complexes (CMC) in iuntercellular binding start, and then to spread gradually along CMC to fibrous inside and to have an effect, therefore cause the decrement effect of proteases on wool to be uneven and mainly occur in wool fibre inside, and unexpected ecto-entad carries out, therefore the hydrolysis of protease is relied on merely, wool fibre inside may be caused severely degrade to occur, and wool scale is also quite complete, the processing procedure of proteases on wool is consequently caused to be difficult to control, very easily there is the technical problems such as fibrous inside damage and powerful degradation, therefore also limit the application of protease decrement treatment in wool mercerization.Meanwhile, the inhomogeneity in protease decrement treatment wool process and the restive problem of protease hydrolytic degree are also face in the industrial applications of current protease decrement treatment in wool carpet process one unsolved technical barriers so far.
Summary of the invention
Technical problem to be solved by this invention, be exactly for the deficiency existing for above prior art, and propose a kind of based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, this technique is based on the decrement treatment of protease and mechanical external force synergy, appropriateness peels off wool scale, reach the object to wool fabric mercerized finish, and reduce due to simple dependent protein enzyme and other chemicals chemical action and cause the undue damage of wool, and the pollution that chloridization process brings environment.
Technical scheme of the present invention is achieved by the following technical measures:
A kind of based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, its feature is that this wool carpet mercerising method comprises the combination of Protease Treatment and the process of wool scale mechanical stripping, and in the process of wool scale mechanical stripping, machinery is swiped or hairbrush polish-brush or both combinations for scraper.
The operation of this wool carpet mercerising method above-described comprises: the cleaning of wool carpet, Protease Treatment, scale mechanical stripping, the process of protease inactivation and washing, and concrete technology step is as follows:
(1) cleaning of wool carpet: the dosage of scour that wool carpet uses under neutral or weak basic condition is 1% ~ 10%(o.w.f); bath raio 1:10 ~ 1:50; temperature is 30 ~ 80 DEG C, washs 30 ~ 120min under the condition of pH6.0 ~ 9.0, then dewaters with clear water rinsing;
(2) Protease Treatment: fabric is temperature 30 ~ 65 DEG C after redox preliminary treatment, pH6 ~ 9.0; under bath raio 1:20 ~ 1:50 condition, be added with 0.5%(o.w.f) ~ 8%(o.w.f) protease, fatty alcohol polyethenoxy ether class surfactant 0 ~ 15g/L solution in dipping 30 ~ 120min;
(3) scale mechanical stripping: the fabric after Protease Treatment, still carpet is swiped or polish-brush with the frequency of 1 time/min ~ 15 time/min with scraper or hairbrush in former Protease Treatment liquid, time is 15 ~ 120min, when scraper and hairbrush conbined usage, first use hairbrush polish-brush with after scraper scraping;
(4) process of protease inactivation, washing: the fabric after scale mechanical stripping is washed 5 ~ 20min in 85 DEG C ~ 95 DEG C hot water, protease is lost activity, then fully washes and dewaters.
In order to improve the efficiency of proteases on wool fiber hydrolysis, after the matting of the wool carpet in the operation of the above this wool carpet mercerization and before Protease Treatment operation, oxidation or reduction pretreatment operation can also be added.When also comprising oxidation pre-treatment operation after matting and before Protease Treatment operation, oxidation pre-treatment step is, by the wool carpet after cleaning in pH7 ~ 9.5, temperature is under the condition of 30 DEG C ~ 65 DEG C, at the 30%H containing 2 ~ 20g/L
2o
2, 0 ~ 10g/L sodium metasilicate the aqueous solution in soak 15 ~ 60min, dehydration; When also comprising reduction pretreatment operation after matting and before Protease Treatment operation, reduction pretreatment step is, by the wool carpet after cleaning in pH7 ~ 9.5, temperature is under the condition of 30 DEG C ~ 65 DEG C, at the NaHSO containing 2 ~ 20g/L
3the aqueous solution in soak 15 ~ 60min, dehydration.
Soft or the level and smooth feel of rear wool carpet is arranged in order to give, for the wool carpet through protease decrement and mechanical external force Combined Treatment, amino-modified silicone oil can be used to carry out soft finish, namely can also add soft finish operation after the protease inactivation process of wool carpet in the operation of the above this wool carpet mercerization and washing step.Soft finish process is: the fabric after dehydration is soaked in 2% ~ 15%(o.w.f again) in amino-modified silicone oil solution, at bath raio 1:10 ~ 1:50,20 ~ 60min is soaked under temperature 35 DEG C ~ 65 DEG C conditions, again dewater, at 60 DEG C ~ 100 DEG C preliminary drying 30 ~ 90min after dehydration, then at 120 ~ 180 DEG C, cure 0.5 ~ 10min.
Above-described scraper is made up of metal or resin material, and described " hair " brush is made up of elastomeric material, and elastomeric material is nylon or rubber.
Beneficial effect of the present invention:
1, the present invention adopts the synergy of protease and mechanical stripping, under the suitable hydrolysis of CMC between proteases on wool scale, wool scale occurs that rake angle increase and scale and wool main body link and loosens, on this basis, by the mechanism of scraper or hairbrush, physically or the biochemical synergy of physics and protease, peel off the scale of wool, when avoiding simple dependence protease effect, if when the processing time is short or intensity is low, be not enough to cause enough destruction to scale, and long action time or intensity large time, although there occurs etching to scale, but the inside of wool fibre is caused to the situation generation of serious damage.
The physical action of the decrement treatment combine external force of the protease 2, in technical solution of the present invention; appropriateness peels off wool scale; not only avoid too relying on chemical action and cause damage to wool fibre inside and powerful undue decline; wool carpet morphological stability is in use increased; carpet sense of touch soft smooth more, gloss is softer, also reduces the consumption of auxiliary chemicals in wool fabric mercerization finish process; decrease the discharge of waste water, have obvious meaning to environmental protection.
3, because wool scale surface exists the cystine of high level in class lipid layer and scale skin, the large molecule of protease is made to be difficult to be diffused in scale, anticipating of oxidant or reductant, the hydrophobic structure of wool surface class lipid layer can be destroyed, the outer cystine disulfide bond of partial cut scale simultaneously, protease molecule is made from outward appearance to inner essence to spread in fiber scale more easily and to have an effect to it, improve the hydrolysis of proteases on wool scale layer, so wool anticipating through oxidant or reductant, improve the activity of wool in the decrement treatment of protease, improve the hydrolysis effect of wool under Protease Treatment, for follow-up mechanical stripping technique provides good basis.
4, compare with traditional chlorination wool mercerising method, successful Application bio protease, completely avoid the use of chlorination reagent, can not produce poisonous Absorbable rod organohalogen compounds, thoroughly avoids the pollution of organohalogen compounds to environment.
Detailed description of the invention
Clearly understand to make technical scheme of the present invention; the present invention is further illustrated to use embodiment below; but it is not limited to any embodiment, all changes in the claims in the present invention protection domain or in equivalent the claims in the present invention protection domain are all protected by the application's claim.
Embodiment 1: protease and the symphyogenetic wool carpet of mechanical external force are without chlorine mercerized finish
1. protease and the symphyogenetic wool carpet of mechanical external force are without chlorine mercerized finish
Fabric type: pure wool carpet
(1) cleaning of fabric: hair can be 3%(o.w.f only), at bath raio 1:30, under temperature 35 DEG C of conditions, fabric is soaked 1 hour, then clear water rinsing 1 time, dewaters stand-by.
(2) Protease Treatment under alkali condition: with 2%(o.w.f) Savinase16L protease temperature 55 DEG C, 30min in pH8.0, the bath raio 1:30 aqueous solution.
(3) Protease Treatment under neutrallty condition: with 2%(o.w.f) papain temperature 55 DEG C, flood 30min in pH7.0, the bath raio 1:30 aqueous solution.
(4) scraper is peeled off the physics of scale: wool carpet, after Protease Treatment, is still swiped to carpet with the frequency of 3 times/min with aluminium alloy scraper in Protease Treatment liquid, direction be from bottom carpet to carpet surface, the time is 30min.
(5) resilient bristles is peeled off the physics of scale: wool carpet is after Protease Treatment, the hairbrush still made with nylon fiber in Protease Treatment liquid carries out polish-brush with the frequency of 3 times/min to carpet, polish-brush direction is run from bottom carpet to carpet surface, and the time is 30min.
(6) process of protease inactivation and washing: fabric washes 5min in 90 DEG C of hot water, makes protease lose activity, then the fully rear centrifugal dehydration of washing.
(7) soft treatment: at bath raio 1:20, under temperature 35 DEG C of conditions, fabric after rinse dehydration is immersed in 4%(o.w.f) 30min in amino-modified silicone class softener solution, then in Water Extraction Machinery dehydration 1min, at 60 DEG C of preliminary drying 40min, at 145 DEG C, cure 3min.
Sample 1: the carpet sample of only cleaning the process of a step through fabric.
Sample 2: through fabric cleaning, Protease Treatment, scraper to be peeled off the physics of scale and the carpet sample of process of the process of protease inactivation and washing four steps under alkali condition.
Sample 3: through fabric cleaning, Protease Treatment, scraper to be peeled off the physics of scale and the carpet sample of process of the process of protease inactivation and washing four steps under neutrallty condition.
Sample 4: through fabric cleaning, Protease Treatment, resilient bristles to be peeled off the physics of scale and the carpet sample of process of the process of protease inactivation and washing four steps under alkali condition.
Sample 5: through fabric cleaning, Protease Treatment under alkali condition, scraper, the physics of scale to be peeled off, the carpet sample of the process of the process of protease inactivation and washing and soft treatment five steps.
Sample 6: through fabric cleaning, Protease Treatment under alkali condition, resilient bristles, the physics of scale to be peeled off, the carpet sample of the process of the process of protease inactivation and washing and soft treatment five steps.
2. the test of finishing effect:
Wool fibre fineness is tested: adopt microscope projector's method test wool fibre fineness.
(2) test of weight-loss ratio: sample dries to constant weight in 105 DEG C respectively in an oven before and after treatment, then accurate weighing sample weight, after process, sample weight-loss ratio presses formulae discovery:
Sample weight before weight-loss ratio (%)=100% × (before process, sample weighs the-rear sample weight of process)/process
(3) fall by force the test of rate: according to standard GB/T4711-1984 " Single fiber ultimate strength and extend experimental technique ", test the Single fiber ultimate strength through different disposal, fall rate by force according to sample after formulae discovery process.
The ultimate strength of rate (%)=100% × (ultimate strength of the rear sample of ultimate strength-process of the front sample of process) front sample of/process falls by force
The test result of 3 finishing effects
Test the fibre fineness of various sample, broken filament brute force and weight, and calculate the weight-loss ratio of each sample and fall rate by force, the results are shown in Table 1.
The single protease of table 1 and mechanical external force symphyogenetic wool carpet mercerized finish effect
Conclusion is: although sample 2, sample 3, sample 4, sample 5 and sample 6 have difference on finishing technique, but all have passed through the synergy that protease hydrolytic and physical external force are peeled off, compare with the sample 1 of physical external force effect with without protease decrement treatment, the average fineness of wool fibre all has reduction in various degree, particularly for sample 2 and sample 5, fineness reduces close to a micron, and does not occur that undue weight reduces and loss of strength.
Embodiment 2 has pretreated protease and the symphyogenetic wool carpet mercerized finish of mechanical external force
Fabric variety: pure wool carpet
(1) cleaning of fabric: the clean A of hair energy is 3%(o.w.f), at bath raio 1:30, under temperature 35 DEG C of conditions, fabric is soaked 1 hour, clear water rinsing 1 time, dewaters stand-by.
(2) oxidation pre-treatment of hydrogen peroxide: wool sample is through 90 DEG C of hot water preimpregnation, and at pH8.0, temperature 50 C, under the condition of bath raio 1:30, with the 30%H of 3g/L
2o
2solution-treated 1 hour.
(3) reduction pretreatment of sodium hydrogensulfite: at bath raio 1:30, under temperature 40 DEG C of conditions, is immersed in fabric containing 15%(o.w.f) NaHSO
3and 3%(o.w.f) Na
2cO
3in the aqueous solution, the processing time is 40min, then dewaters.
(4) Protease Treatment: at temperature 50 C, under the condition of pH8.0, bath raio 1:50, fabric is 2.0%(o.w.f at Esperase8.0L protease consumption), penetrating agent JFC concentration is soak 45min in the solution of 5g/L.
(5) the tool power effect of scraper: wool carpet, after Protease Treatment, is still swiped to carpet with the frequency of 2 times/min with aluminium alloy scraper in Protease Treatment liquid, direction be from bottom carpet to carpet surface, the time is 30min.
(6) mechanism of resilient bristles: wool carpet is after Protease Treatment, the hairbrush still made with nylon fiber in Protease Treatment liquid carries out polish-brush with the frequency of 2 times/min to carpet, polish-brush direction is run from bottom carpet to carpet surface, and the time is 30min.
(7) process of protease inactivation and washing:
Fabric washes 5min in 90 DEG C of hot water, and protease is lost activity, then the fully rear centrifugal dehydration of washing.
Soft treatment: at bath raio 1:30, under temperature 35 DEG C of conditions, is immersed in 4%(o.w.f by fabric) 30min in amino-modified silicone class softener solution, then in Water Extraction Machinery dehydration 1min, at 85 DEG C of preliminary drying 30min, cures 5min at 130 DEG C.
Sample 1: the carpet sample of only cleaning the process of a step through fabric.
Sample 2: through fabric cleaning, the oxidation pre-treatment of hydrogen peroxide, Protease Treatment, scraper are peeled off the physics of scale, resilient bristles is peeled off the physics of scale, the carpet sample of the process of the process of protease inactivation and seven steps such as washing and soft treatment.
Sample 3: through fabric cleaning, the reduction pretreatment of sodium hydrogensulfite, Protease Treatment, scraper are peeled off the physics of scale, resilient bristles is peeled off the physics of scale, the carpet sample of the process of the process of protease inactivation and seven steps such as washing and soft treatment.
The test of finishing effect: the wool fibre fineness of embodiment, reduction rate and the test of falling by force the indexs such as rate are carried out with reference to embodiment 1 performance test part.
The test result of 3 finishing effects
Test the fibre fineness of three samples, broken filament brute force and weight, and calculate the reduction rate of sample 2 and sample 3 and fall rate by force, the results are shown in Table 2.
Table 2 has pretreated protease and the symphyogenetic wool carpet mercerized finish of mechanical external force
Conclusion: oxidation pre-treatment and reduction pretreatment can improve protease decrement functioning efficiency, under the effect of combine external force, compare with the sample 1 of physical external force effect with without protease decrement treatment, in sample 2 and sample 3, the average fineness of wool fibre decreases a micron, although reduction rate and loss of strength enlarge markedly, but still within the scope of acceptable.
Embodiment 3 compound protease and the symphyogenetic wool carpet mercerized finish of mechanical external force
Fabric variety: pure wool carpet
(1) cleaning of fabric: the clean A of hair energy is 5%(o.w.f), at bath raio 1:30, under temperature 50 C condition, fabric is soaked 1 hour, clear water rinsing 1 time, dewaters stand-by.
(2) oxidation pre-treatment of hydrogen peroxide: at pH8.5, temperature 60 C, under the condition of bath raio 1:50, fabric is immersed in the 30%H containing 5g/L
2o
2with the Na of 1.5g/L
2siO
39H
2in the O aqueous solution, process 45min.
(3) mixed protein ferment treatment: temperature 55 DEG C, under the condition of pH8.0, bath raio 1:50, with containing 1%(o.w.f) Savinase16L protease and 1%(o.w.f) aqueous solution process fabric 30min of Esperase8.0L protease.
(4) the tool power effect of scraper: wool carpet, after Protease Treatment, is still swiped to carpet with the frequency of 3 times/min with aluminium alloy scraper in Protease Treatment liquid, direction be from bottom carpet to carpet surface, the time is 30min.
(5) process of protease inactivation and washing: fabric washes 9min in 90 DEG C of hot water, makes protease lose activity, and then fully washes and dewaters.
(6) soft treatment: at bath raio 1:30, under temperature 35 DEG C of conditions, is immersed in 4%(o.w.f by fabric) 60min in amino-modified silicone class softener solution, then in dehydration, at 60 DEG C of preliminary drying 60min, cures 6min at 130 DEG C.
Sample 1: the carpet sample of only cleaning the process of a step through fabric.
Sample 2: through fabric cleaning, mixed protein ferment treatment, scraper, the physics of scale to be peeled off, the carpet sample of the process of the process of protease inactivation and the five steps such as washing and soft treatment.
Sample 3: through fabric cleaning, the oxidation pre-treatment of hydrogen peroxide, mixed protein ferment treatment, scraper, the physics of scale to be peeled off, the carpet sample of the process of the process of protease inactivation and six steps such as washing and soft treatment.
2. the test of finishing effect: the wool fibre fineness of embodiment, reduction rate and the test of falling by force the indexs such as rate are carried out with reference to embodiment 1 performance test part.
The test result of 3 finishing effects
Test the fibre fineness of three samples, broken filament brute force and weight, and calculate the reduction rate of sample 2 and sample 3 and fall rate by force, the results are shown in Table 3.
Table 3 compound protease and mechanical external force symphyogenetic wool carpet mercerized finish effect
Conclusion: compound protease and mechanical external force synergy effectively to reduction wool fineness, and can not cause the undue damage of wool fibre.The oxidation pre-treatment of hydrogen peroxide, makes compound protease improve the hydrolysis efficiency of wool, and under the effect of combine external force, the average fineness of wool fibre reduces by more than a micron, and reduction rate is suitable, and loss of strength can accept.
Claims (8)
1. one kind based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, it is characterized in that this wool carpet mercerization comprises the combination of Protease Treatment and the process of wool scale mechanical stripping, in the process of wool scale mechanical stripping, machinery is swiped or hairbrush polish-brush or both combinations for scraper, the operation of this wool carpet mercerization comprises: the cleaning of wool carpet, Protease Treatment, scale mechanical stripping, the process of protease inactivation and washing, scale mechanical stripping step is: the fabric after Protease Treatment, still carpet is swiped or polish-brush with the frequency of 1 time/min ~ 15 time/min with scraper or hairbrush in former Protease Treatment liquid, time is 15 ~ 120min, when scraper and hairbrush conbined usage, first use hairbrush polish-brush with after scraper scraping.
2. one according to claim 1 based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, it is characterized in that the cleaning step of wool carpet is: the dosage of scour that wool carpet uses under neutral or weak basic condition is 1% ~ 10%(o.w.f); bath raio 1:10 ~ 1:50; temperature is 30 ~ 80 DEG C; wash 30 ~ 120min under the condition of pH6.0 ~ 9.0, then dewaters with clear water rinsing.
3. one according to claim 1 based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, it is characterized in that protease treatment step is: fabric is temperature 30 ~ 65 DEG C after redox preliminary treatment, pH6 ~ 9.0; under bath raio 1:20 ~ 1:50 condition, be added with 0.5%(o.w.f) ~ 8%(o.w.f) protease, fatty alcohol polyethenoxy ether class surfactant 0 ~ 15g/L solution in dipping 30 ~ 120min.
4. one according to claim 1 based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, it is characterized in that the process of protease inactivation, water-washing step is: the fabric after scale mechanical stripping is washed 5 ~ 20min in 85 DEG C ~ 95 DEG C hot water, protease is lost activity, then fully washes and dewater.
5. one according to claim 1 is based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, it is characterized in that: also comprise oxidation or reduction pretreatment operation after the matting of the wool carpet in the operation of this wool carpet mercerization and before Protease Treatment operation.
6. one according to claim 1 based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, it is characterized in that: after the protease inactivation process of the wool carpet in the operation of this wool carpet mercerization and washing step, also comprise soft finish operation, soft finish operation is: the fabric after dehydration is soaked in 2% ~ 15%(o.w.f again) in amino-modified silicone oil solution, at bath raio 1:10 ~ 1:50, 20 ~ 60min is soaked under temperature 35 DEG C ~ 65 DEG C conditions, again dewater, at 60 DEG C ~ 100 DEG C preliminary drying 30 ~ 90min after dehydration, then at 120 ~ 180 DEG C, 0.5 ~ 10min is cured.
7. one according to claim 5 based on protease and the symphyogenetic wool carpet of mechanical force without chlorine mercerising method, it is characterized in that: when also comprising oxidation pre-treatment operation after matting and before Protease Treatment operation, oxidation pre-treatment step is, by the wool carpet after cleaning in pH7 ~ 9.5, temperature is under the condition of 30 DEG C ~ 65 DEG C, at the 30%H containing 2 ~ 20g/L
2o
2, 0 ~ 10g/L sodium metasilicate the aqueous solution in soak 15 ~ 60min, dehydration; When also comprising reduction pretreatment operation after matting and before Protease Treatment operation, reduction pretreatment step is, by the wool carpet after cleaning in pH7 ~ 9.5, temperature is under the condition of 30 DEG C ~ 65 DEG C, at the NaHSO containing 2 ~ 20g/L
3the aqueous solution in soak 15 ~ 60min, dehydration.
8. the one according to claim 1 or 2 or 3 or 4 or 6, is characterized in that: the protease in described Protease Treatment is at least one in Esperase protease, Savinase protease, papain without chlorine mercerising method based on protease and the symphyogenetic wool carpet of mechanical force.
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