CN103266466B - Method for pre-treating mulberry noil silk fabric with biological enzyme - Google Patents
Method for pre-treating mulberry noil silk fabric with biological enzyme Download PDFInfo
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- CN103266466B CN103266466B CN201310205402.0A CN201310205402A CN103266466B CN 103266466 B CN103266466 B CN 103266466B CN 201310205402 A CN201310205402 A CN 201310205402A CN 103266466 B CN103266466 B CN 103266466B
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Abstract
The invention discloses a method for pre-treating a mulberry noil silk fabric with a biological enzyme. The method comprises the steps of scouring and bleaching, washing and drying and is characterized in that the scouring and bleaching step comprises the sub-step of adding the mulberry noil silk fabric to a scouring and bleaching solution to be scoured and bleached, wherein the mass ratio of the mulberry noil silk fabric to the scouring and bleaching solution is (1:12)-(1:18); the temperature is controlled to be 50-60 DEG C; the treatment time is 30-90 minutes; and the scouring and bleaching solution comprises the following components by weight percent: 2-4% of compound biological enzyme, 5-10% of hydrogen peroxide, 1-2% of tetra acetyl ethylene diamine, 0.1-0.3% of sodium capryloamphoacetate, 0.1-0.3% of magnesium sulfate and the balance of water. The method has the advantages of desizing and bleaching in one bath, mild treatment conditions, small damage to the fabric and short treatment time.
Description
Technical field
The present invention relates to a kind of fabric pretreatment method, particularly relate to a kind of silkworm Tsumugi silk fabrics Bio-enzyme pretreatment method.
Background technology
In weave dyeing and finishing technique, take yarn as the fabric of warp, before weaving, all have to pass through starching process, to improve the brute force of warp thread, ABRASION RESISTANCE and smooth degree, thus reduce warp end break, ensureing weaves cotton cloth carries out smoothly.Warp sizing oar material used has natural slurry as starch, wild starch, and chemical sizwe is as polyvinyl alcohol (PVA), polyacrylic acid (PAA), and cellulose preparation is as carboxymethyl cellulose (CMC) etc.Other composition is also added as preservative agent, softener, hygroscopic agent, anti-friction composition etc. in sizing liquor.The height of warp sizing rate and the quality of fiber, yarn count, density etc. are relevant, the fabric that yarn count is thin, density is large, and warp sizing rate is high, the general fabrics rate of sizing 4% ~ 8%.
Grey cloth spreading mass is unfavorable to dyeing and printing process, because the existence of slurry can stain dyeing and finishing working solution, expends dye material, even can hinder the contact of dye material and fiber, affect the quality of dyeing and printing products.Therefore, fabric just has to pass through destarch process at the beginning of dyeing and finishing processing, removes grey cloth spreading mass as much as possible.Destarch requires different and different according to the kind of following process, such as dyeing, the fabric of stamp, destarch requires higher, and requiring the destarch of BLEACHED FABRIC then can be slightly lower.
Warp thread institute spreading mass kind is relevant with the fiber species that fabric uses, and starch slurry is used for cellulose base fiber fabric, and as COTTON FABRIC, linen etc., chemical sizwe is used for closing fine fabric.Sometimes also mixed slurry starching is used.Destarch carries out destarch under desizing agent and certain effect condition.
Fabric is after kiering, and on fabric, the natural and artificial impurity of major part removes, and capillary effect significantly improves, and can meet the processing request of some kinds.But to light figured cloth, the painting cloth class of BLEACHED FABRIC and lovely luster, also need to improve whiteness, therefore need to remove the pigment on fabric further, make fabric pure whiter.Though fabric is through kiering besides, especially normal pressure decatize kiering, still have partial impurities such as cotton seed hulls to fail entirely to remove, by the effect of bleaching agent, these impurity can remove completely.
Cotton dyeing factory widely uses the oxidative bleaches such as hypochlorite, hydrogen peroxide.To cotton and cotton fabric bleaching, peracid compound as perboric acid receive, peracetic acid, sodium percarbonate etc. are also even application, sodium chlorite is used for the bleaching of synthetic fiber and BLENDED FABRIC thereof.Usually floated referred to as chlorine by hypochlorite bleaching, hydrogen peroxide bleaching is referred to as oxygen bleaching, and chlorite bleaching floats referred to as Asia.
(1) hypochlorite bleaching
Conventional hypochlorite has bleaching powder and clorox two kinds.Bleaching powder is that chlorine and calcium hydroxide effect form, and if logical chlorine is in milk of lime, can obtain the bleaching powder doubled containing active ingredient; Logical chlorine in soda bath, then can obtain clorox.In bleaching powder and bleaching powder, active ingredient is calcium hypochlorite, and total effect is not as clorox.Cotton dyeing factory larger is at present normal oneself manufactures clorox, or buys clorox for bleaching to neighbouring chemical plant, and bleaching powder is difficult to obtain the small-sized printing and dyeing mill in area of clorox for small city or rural area.Bleaching powder price is more expensive, uses less.
Sodium hypochlorite bleaching technology and equipment is comparatively simple, is used for COTTON FABRIC and victoria blended spinning fabric bleaching, sometimes also bleaches for polyester cotton.But the bleaching of the protein fibre such as silk, wool can not be used for, because clorox has destruction to protein fibre, and make fiber yellowing.
(2) hydrogen peroxide bleaching
Hydrogen peroxide also claims hydrogen peroxide.Better with the fabric whiteness of hydrogen peroxide bleaching, pure color light, not easily yellowing during storage, is widely used in the bleaching of cotton fabric.Oxygen bleaching has larger adaptability than chlorine drift.
(3) chlorite bleaching
The great advantage that sodium chlorate is used for when COTTON FABRIC is bleached is under the condition not damaging fiber, can destroy pigment and impurity.Sodium chlorite is again the good bleaching agent of chemical fibre, the retention of whiteness of BLEACHED FABRIC is better than the fabric of chlorine drift and oxygen bleaching, but sodium chlorite price is more expensive, strong to metal protection, need by titanium or titanium alloy etc materials, and producing poisonous ClO2 gas in sub-drift process, equipment need have good sealing, therefore in use, is subject to a definite limitation.
Existing fabric pretreatment, generally includes above-mentioned destarch and blanching step, and each step is consuming time longer, and energy consumption is larger.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is to provide a kind of silkworm Tsumugi silk fabrics Bio-enzyme pretreatment method, and destarch and blanching step one step complete.
For solving the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of silkworm Tsumugi silk fabrics Bio-enzyme pretreatment method, comprise kiering bleaching, washing and baking step, it is characterized in that, described kiering blanching step is:
Silkworm Tsumugi silk fabrics added in kiering bleaching liquid and carry out kiering bleaching, the mass ratio of silkworm Tsumugi silk fabrics and described kiering bleaching liquid is 1:12-1:18, and control temperature is at 50-60 DEG C, and the processing time is 30-90 minute;
Described kiering bleaching liquid, is made up of following compositions in weight percentage: compound biological enzyme 2-4%, hydrogen peroxide 5-10%, tetraacetyl ethylene diamine 1-2%, and decoyl both sexes guanidine-acetic acid sodium 0.1-0.3%, magnesium sulfate 0.1-0.3%, surplus is water.
Described compound biological enzyme, is made up of by weight following component: cutinase 10-20 part, alkaline pectase 30-50 part, Isosorbide-5-Nitrae-Β-D-Glucose-4-glucoside hydrolase 10-20 parts, laccase 20-40 part.
Concrete, in the inventive solutions:
Cutinase, Cutinase, EC3.1.1.74, be that a kind of ester bond that can destroy cutin polymer molecules makes the outer induced hydrolysis enzyme of its born of the same parents being hydrolyzed to monomer and Small molecular oligomer, belong to serine easterase.Cutinase both can the ester bond of the insoluble polymer Plant Cuticular of catalyzing hydrolysis, and also can act on other long-chain, short-chain aliphatic ester, the triglycerides of emulsification and the synthetic ester etc. of solubility, be a kind of multi-functional lyases.
Alkaline pectase is a kind of biological enzyme formulation, can be used for come unstuck preliminary treatment and the boiling-off additive of textile fabric.Alkaline-resisting, can use under alkaline environment, have good place to go to act on to inoglia, and less to native cellulose fibre damage, fiber can be kept to have good physical property.Alkaline pectase Biopmp3000L (Novozymes Company, enzyme activity 3000U/mL) can be selected in the present invention.
Isosorbide-5-Nitrae-Β-D-Glucose-4-glucoside hydrolase, CAS accession number: 9012-54-8, EINECS accession number: 232-734-4, English name: Isosorbide-5-Nitrae-[1,3:1,4]-BETA-D-GLUCAN4-GLUCANO-HYDROLASE.
Laccase, English name: Laccase, CAS number: 80498-15-3, EINECS accession number: 420-150-4.Laccase is copper-containing metal enzyme, has four copper atoms in each laccase molecule.The typical reaction of laccase is oxidation phenolic compound, along with reducing molecular oxygen Cheng Shui in course of reaction.In the catalytic oxidation process of laccase, substrate loses an electronics and forms free radical, and unstable free radical can participate in the oxygenation reaction of Laccase Catalyzed or non-enzymatic reaction, further as hydration reaction, polymerisation.
Decoyl both sexes guanidine-acetic acid sodium, SODIUM CAPRYLOAMPHOACETATE, 68647-46-1.
The present invention adopts complex enzyme-oxygen technique to carry out pre-treatment, utilize respective synergy and biocompatibility each other, adopt cutinase, alkaline pectase, Isosorbide-5-Nitrae-Β-D-Glucose-4-glucoside hydrolase and laccase four kinds of composite uses of biology enzyme, produce synergistic function; Further, magnesium sulfate plays activation to this compound biological enzyme, adding of preferred amphoteric surfactant decoyl both sexes guanidine-acetic acid sodium, more plays further synergistic effect to enzyme.
Relative to prior art, the advantage major embodiment of technical solution of the present invention is:
The present invention adopts compound biological enzyme to carry out with bath destarch and bleaching to silkworm Tsumugi silk fabrics, and treatment conditions are gentle, little to fabric damage, and technological process is short.
Detailed description of the invention
Silkworm Tsumugi silk fabrics, initial whiteness is 46.5%.
Embodiment 1
(1) preparation of compound biological enzyme
Take cutinase 15 weight portion, alkaline pectase 40 weight portion, Isosorbide-5-Nitrae-Β-D-Glucose-4-glucoside hydrolase 15 weight portion and laccase 30 weight portion, be uniformly mixed, be i.e. this compound biological enzyme obtained.
(2) preparation of kiering bleaching liquid
Under room temperature, compound biological enzyme, hydrogen peroxide, tetraacetyl ethylene diamine, decoyl both sexes guanidine-acetic acid sodium and magnesium sulfate are added to the water, are uniformly mixed, obtained kiering bleaching liquid,
Described kiering bleaching liquid, is made up of following compositions in weight percentage: described compound biological enzyme 3%, hydrogen peroxide 7.5%, tetraacetyl ethylene diamine 1.5%, decoyl both sexes guanidine-acetic acid sodium 0.2%, and magnesium sulfate 0.2%, surplus is water.
(3) with bath kiering bleaching
Silkworm Tsumugi silk fabrics added in kiering bleaching liquid and carry out kiering bleaching, the mass ratio of silkworm Tsumugi silk fabrics and kiering bleaching liquid is 1:15, and control temperature is at 55 DEG C, and dip time is 60 minutes.
(4) adopt conventional method washing, dry.
Comparative example 1
(1) preparation of kiering bleaching liquid
Under room temperature, compound biological enzyme, hydrogen peroxide, tetraacetyl ethylene diamine, penetrating agent JFC and the magnesium sulfate embodiment 1 prepared are added to the water, be uniformly mixed, obtained kiering bleaching liquid, described kiering bleaching liquid, be made up of following compositions in weight percentage: described compound biological enzyme 3%, hydrogen peroxide 7.5%, tetraacetyl ethylene diamine 1.5%, penetrating agent JFC 0.2%, magnesium sulfate 0.2%, surplus is water.
(2) with bath kiering bleaching
Silkworm Tsumugi silk fabrics added in kiering bleaching liquid and carry out kiering bleaching, the mass ratio of silkworm Tsumugi silk fabrics and kiering bleaching liquid is 1:15, and control temperature is at 55 DEG C, and dip time is 60 minutes.
(3) adopt conventional method washing, dry.
Comparative example 2
(1) preparation of kiering bleaching liquid
Under room temperature, α-amylase, hydrogen peroxide, tetraacetyl ethylene diamine, decoyl both sexes guanidine-acetic acid sodium and magnesium sulfate are added to the water, are uniformly mixed, obtained kiering bleaching liquid,
Described kiering bleaching liquid, is made up of following compositions in weight percentage: α-amylase 3%, hydrogen peroxide 7.5%, tetraacetyl ethylene diamine 1.5%, decoyl both sexes guanidine-acetic acid sodium 0.2%, and magnesium sulfate 0.2%, surplus is water.
(2) with bath kiering bleaching
Silkworm Tsumugi silk fabrics added in kiering bleaching liquid and carry out kiering bleaching, the mass ratio of silkworm Tsumugi silk fabrics and kiering bleaching liquid is 1:15, and control temperature is at 55 DEG C, and dip time is 60 minutes.
(3) adopt conventional method washing, dry.
Test case 1
Test the silkworm Tsumugi silk fabrics after the process of embodiment 1, comparative example 1 and comparative example 2, concrete data see the following form.
Silkworm Tsumugi silk fabrics performance test table
| Destarch rate, % | Whiteness, % | Strength retention, % | |
| Embodiment 1 | 92.2 | 81.3 | 94 |
| Comparative example 1 | 86.4 | 76.2 | 93 |
| Comparative example 2 | 85.3 | 75.0 | 93 |
Destarch rate represents that a basic technical indicator of degree removed by textile sizing material, available following formulae discovery:
Destarch rate=[before (before destarch after fabric sizing percentage-destarch fabric sizing percentage)/destarch fabric sizing percentage] × 100%.
With Elmendorf Tear tester test strength retention.One is of a size of the test sample two ends clamping of 6.5cm × 10cm, the otch of a 2cm is vertically cut at position therebetween, tearing to the maximum grams shown by this point of 4.5cm place measurement, measure 3 times, average, and with the measured value of this mean value divided by undressed sample, its quotient is strength retention.Strength retention is larger, illustrates that the damage of this operation to fabric is less.
The present invention adopts compound biological enzyme to carry out with bath destarch and bleaching silkworm Tsumugi silk fabrics, and treatment conditions are gentle, little to fabric damage, environmental friendliness, and technological process is short only needs 30-90 minute, energy efficient; Fabric softness after process is high, good hand touch, and dye penetration, level-dyeing property significantly improve.
Claims (1)
1. a silkworm Tsumugi silk fabrics Bio-enzyme pretreatment method, comprise kiering bleaching, washing and baking step, it is characterized in that, described kiering blanching step is:
Silkworm Tsumugi silk fabrics added in kiering bleaching liquid and carry out kiering bleaching, the mass ratio of silkworm Tsumugi silk fabrics and described kiering bleaching liquid is 1:12-1:18, and control temperature is at 50-60 DEG C, and the processing time is 30-90 minute;
Described kiering bleaching liquid, is made up of following compositions in weight percentage: compound biological enzyme 2-4%, hydrogen peroxide 5-10%, tetraacetyl ethylene diamine 1-2%, decoyl both sexes guanidine-acetic acid sodium 0.1-0.3%, magnesium sulfate 0.1-0.3%, and surplus is water;
Described compound biological enzyme, is made up of by weight following component: cutinase 10-20 part, alkaline pectase 30-50 part, Isosorbide-5-Nitrae-Β-D-Glucose-4-glucoside hydrolase 10-20 parts, laccase 20-40 part.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070021A (en) * | 1992-09-28 | 1993-03-17 | 营口市光达漂染厂 | Tussah silk, tow dyeing technique |
| CN1104269A (en) * | 1994-09-20 | 1995-06-28 | 泰安大麻纺织科学研究所 | Silk and bast fiber mixed silk and its production method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070021A (en) * | 1992-09-28 | 1993-03-17 | 营口市光达漂染厂 | Tussah silk, tow dyeing technique |
| CN1104269A (en) * | 1994-09-20 | 1995-06-28 | 泰安大麻纺织科学研究所 | Silk and bast fiber mixed silk and its production method |
Non-Patent Citations (2)
| Title |
|---|
| 棉织物酶精练漂白同浴处理工艺;阎贺静等;《印染》;20110501(第9期);第5-9页 * |
| 生物酶在印染加工上的应用";许益;《2006/2007中国纺织工业技术进步研究报告》;20061231;第355-362页 * |
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