CN102080331B - Process for pre-treating fabrics by bio-enzymatic method - Google Patents
Process for pre-treating fabrics by bio-enzymatic method Download PDFInfo
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- CN102080331B CN102080331B CN2010105664513A CN201010566451A CN102080331B CN 102080331 B CN102080331 B CN 102080331B CN 2010105664513 A CN2010105664513 A CN 2010105664513A CN 201010566451 A CN201010566451 A CN 201010566451A CN 102080331 B CN102080331 B CN 102080331B
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Abstract
The invention relates to a pretreatment process of fabrics in the printing and dyeing industry, and in particular relates to a process for pre-treating fabrics by a bio-enzymatic method. The method comprises the following steps: padding for the first time; carrying out a cold pad-batch process on the fabrics; sequentially washing with hot water and cold water, and squeezing; padding for the second time; steaming the fabrics; and washing with hot water, then washing with cold water once and drying, wherein, a complex enzyme system is added in the procedure of padding for the first time, and the complex enzyme system comprises alkali pectinase, amylase and lignin degrading enzyme systems. By utilizing the process, the biological enzyme is added to the fabrics for synchronously desizing, refining and bleaching the fabrics; the process has the advantages of moderate action conditions, no damage on the fabrics, energy loss reduction and environmental friendliness; and the wettability, impurity removal rate and whiteness of the obtained fabrics are much higher than those of the fabrics obtained through alkali treatment.
Description
Technical field
The present invention relates to a kind of pre-treatment process of dyeing fabric, particularly adopt the technology of biological enzyme fabric pretreatment.
Background technology
In printing and dyeing processing, traditional following several steps of the general employing of the pre-treatment to COTTON FABRIC: destarch, kiering, bleaching.Adopt above-mentioned method to handle COTTON FABRIC, the amount of water, electricity, vapour is all very big.Use alkali to come destarch in the traditional handicraft, under the condition of HTHP, thereby impurity saponification, emulsifications such as pectin, wax and protein are removed from fiber.Use highly basic to come destarch that following shortcoming is arranged: must carry out destarch to the slurry on the warp thread and handle, dying material is contacted with fiber fully, reduce the consumption of dying material.Most producers that print and dye adopt the mode of alkali destarch to remove the slurry on the fabric, adopt this method destarch rate lower, and generally 50～70%, remaining slurry also will further remove through concise.Other one big shortcoming of alkali destarch is the difficult control of the washing after the destarch, and the alkali destarch can not make the big molecule of slurry destroy, and stains slurry again if wash insufficient being prone to, and the destarch effect is descended.
General employing high-temperature bleaching technology of the prior art, the shortcoming of this method is: 1. the process energy consumption is high, and the bleaching temperature of hydrogen peroxide solution is more than 98 ℃; 2. increase the weight of the damage of fiber, reduce brute force, contain excessive iron ion or other heavy metal ion if handle in the bath, this damage meeting is more serious; 3. the fabric degreasing is more, influences the natural lubricity of fiber, causes fabric feeling coarse, and easy pilling.
Owing to used chemical article in a large number in the traditional handicraft, caused the COD value in the waste water too high, the sewage disposal difficulty of getting up does not meet the requirement that current environmental protection is processed.
Summary of the invention
Technical problem to be solved by this invention is, a kind of method with fabric simultaneous desizing, concise and bleaching is provided, and this method has been simplified technology, has alleviated the damage to cloth cover, has reduced energy consumption, has shortened the production time, has improved production efficiency.
A kind of biological enzyme of the present invention comprises following step to the technology of fabric pretreatment:
A. pad for the first time: the grey cloth after the hot water wash is put into desizing machine, add auxiliary agent and complex enzyme system, auxiliary agent is: stabilizing agent, alkaline agent, activator and concentration are 27.5% hydrogen peroxide solution; Complex enzyme system is: alkaline pectase, amylase and lignin-degrading enzymes system;
B. with fabric at 40 ℃ of following cold dome 18h;
C. 80 ℃～100 ℃ following hot water wash 2～4 times, again cold wash once, squezzing, the temperature of cold wash is below 20 ℃, pick-up is 75%;
D. pad for the second time: in the grey cloth of desizing machine, go into to add auxiliary agent: bleeding agent, stabilizing agent, activator, scouring agent and concentration are 27.5% hydrogen peroxide solution;
E. at 70 ℃～90 ℃ following fabric decatize 0.8～1.2h;
F. 80 ℃～100 ℃ following hot water wash 2～4 times, again cold wash once, the temperature of cold wash is below 20 ℃, oven dry.
Among the step a, auxiliary dosage is: stabilizing agent: 2～4g/L, alkaline agent: 3～6g/L, activator: 0.1～0.25g/L, concentration are 27.5% hydrogen peroxide solution: 30～34g/L; Complex enzyme system: 8～12g/L; The weight ratio of alkaline pectase, amylase, lignin-degrading enzymes system is 1:1:1～4:1:1, and lignin-degrading enzymes system comprises that laccase, manganese peroxidase, lignin peroxidase, their weight ratio are 1:1:1.
In the steps d, auxiliary dosage is: bleeding agent: 3～5g/L, stabilizing agent: 1～3g/L, activator: 3～5g/L, concentration are 27.5% hydrogen peroxide solution: 30～34g/L.
Destarch, kiering and bleaching are carried out synchronously, reduced energy consumption, owing in this technology, added complex enzyme system, the mild condition of effect has been eliminated because alkali has brought damage to cloth cover.Added lignin-degrading enzymes is very effective to the cotton seed hulls of removing fabric face, can carry out delignification's effect to wood pulp; Manganese peroxidase can produce the Mn of strong oxidation state
3+, Mn
3+Aromatic ring part as in diffusible redox mediator cracking lignin polymer under the synergy of other enzyme, finally causes macromolecular fracture then.
Adopted the enzyme of said ratio, various enzymes can be brought into play synergy at low temperatures, better fabric are carried out destarch, kiering and bleaching and handle.
Decatize is carried out under 70 ℃～90 ℃, and its temperature will be lower than the temperature in the traditional handicraft, and the temperature in the traditional handicraft generally is in destarch more than 100 ℃, kiering and bleaching, therefore compares with traditional handicraft, and technology of the present invention has been practiced thrift energy consumption.
Beneficial effect of the present invention is: adopted above-mentioned biological enzyme with the fabric simultaneous desizing, concise and the bleaching method; Action condition is gentle; Fabric is not caused damage; And reduced energy consumption, and environmentally friendly, and the whiteness of the wetting property of the fabric that is obtained, removal of impurity and fabric all is higher than the fabric that obtains with alkali treatment far away.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is illustrated further, but do not limit the present invention with this.
Embodiment 1
A. pad for the first time: the grey cloth after the hot water wash is put into desizing machine, add the reagent of following dosage successively:
Stabilizing agent 3g/L
Alkaline agent 4g/L
Complex enzyme 10g/L
Activator 0.17g/L
Concentration is 27.5% hydrogen peroxide solution 32.7g/L;
Wherein, comprise alkaline pectase, amylase, lignin-degrading enzymes system in the complex enzyme, they weight ratio be 1:1:1, lignin-degrading enzymes system comprises that laccase, manganese peroxidase, lignin peroxidase, their weight ratio are 1:1:1.
B. with fabric 40 ℃ of following cold domes 18 hours;
C. 90 ℃ of following hot water wash 3 times, use again 20 ℃ cold wash once, squezzing;
D. pad for the second time: the reagent of in desizing machine, going into to add successively following dosage:
Bleeding agent 4g/L
Stabilizing agent 2g/L
Activator 4g/L
Scouring agent 18g/L
Concentration is 27.5% hydrogen peroxide solution 32.7g/L;
E. at 80 ℃ of following fabric decatize 1h;
F. 90 ℃ of following hot water wash 3 times, use again 20 ℃ cold wash once, oven dry.
Embodiment 2
A. pad for the first time: the grey cloth after the hot water wash is put into desizing machine, add the reagent of following dosage successively:
Stabilizing agent 3g/L
Alkaline agent 4g/L
Complex enzyme 12g/L
Activator 0.15g/L
Concentration is 27.5% hydrogen peroxide solution 32g/L;
Wherein, comprise alkaline pectase, amylase, lignin-degrading enzymes system in the complex enzyme, they weight ratio be 2:1:1, lignin-degrading enzymes system comprises that laccase, manganese peroxidase, lignin peroxidase, their weight ratio are 1:1:1.
B. with fabric 40 ℃ of following cold domes 20 hours;
C. 90 ℃ of following hot water wash 3 times, use again 20 ℃ cold wash once, squezzing;
D. pad for the second time: the reagent of in desizing machine, going into to add successively following dosage:
Bleeding agent 5g/L
Stabilizing agent 2g/L
Activator 4g/L
Scouring agent 20g/L
Concentration is 27.5% hydrogen peroxide solution 33g/L;
E. at 80 ℃ of following fabric decatize 1h;
F. 90 ℃ of following hot water wash 3 times, use again 20 ℃ cold wash once, oven dry.
Embodiment 3
A. pad for the first time: the grey cloth after the hot water wash is put into desizing machine, add the reagent of following dosage successively:
Stabilizing agent 2g/L
Alkaline agent 3g/L
Complex enzyme 8g/L
Activator 0.1g/L
Concentration is 27.5% hydrogen peroxide solution 30g/L;
Wherein, comprise alkaline pectase, amylase, lignin-degrading enzymes system in the complex enzyme, they weight ratio be 3:1:1, lignin-degrading enzymes system comprises that laccase, manganese peroxidase, lignin peroxidase, their weight ratio are 1:1:1.
B. with fabric 40 ℃ of following cold domes 18 hours;
C. 80 ℃ of following hot water wash 4 times, use again 20 ℃ cold wash once, squezzing;
D. pad for the second time: the reagent of in desizing machine, going into to add successively following dosage:
Bleeding agent 3g/L
Stabilizing agent 1g/L
Activator 3g/L
Refining agent 15g/L
Concentration is 27.5% hydrogen peroxide solution 30g/L;
E. at 70 ℃ of following fabric decatize 1.2h;
F. 80 ℃ of following hot water wash 4 times, use again 20 ℃ cold wash once, oven dry.
Embodiment 4
A. pad for the first time: the grey cloth after the hot water wash is put into desizing machine, add the reagent of following dosage successively:
Stabilizing agent 4g/L
Alkaline agent 6g/L
Complex enzyme 12g/L
Activator 0.25g/L
Concentration is 27.5% hydrogen peroxide solution 34g/L;
Wherein, comprise alkaline pectase, amylase, lignin-degrading enzymes system in the complex enzyme, they weight ratio be 4:1:1, lignin-degrading enzymes system comprises that laccase, manganese peroxidase, lignin peroxidase, their weight ratio are 1:1:1.
B. with fabric 40 ℃ of following cold domes 18 hours;
C. 100 ℃ of following hot water wash 4 times, use again 20 ℃ cold wash once, squezzing;
D. pad for the second time: the reagent of in desizing machine, going into to add successively following dosage:
Bleeding agent 5g/L
Stabilizing agent 3g/L
Activator 5g/L
Refining agent 22g/L
Concentration is 27.5% hydrogen peroxide solution 34g/L;
E. at 90 ℃ of following fabric decatize 0.8h;
F. 100 ℃ of following hot water wash 4 times, use again 20 ℃ cold wash once, oven dry.
The key technical indexes
1. technical indicator
(1) bleach product technical indicator
Whiteness>=72%, hair effect>=9cm/30min; Strength loss≤10% (in fabric after destarch, the kiering), product meets the ecological textile standard-required.
(2) energy-saving and emission-reduction index
Realize that bleaching process is energy-conservation 30%, water saving 10% reduces discharge of wastewater more than 10%.Myriametre fabric water consumption is about 2,500,000 tons, about 125 tons of pre-treatment water, and wherein the bleaching process water is about 40 tons, and project reaches postpartum, realizes water saving 10%, then can economize on water 4000 tons, and 90% calculating as if according to discharge of wastewater being water then reduces 3600 tons of discharge of wastewater.
Claims (5)
1. a biological enzyme is to the technology of fabric pretreatment, and this technology comprises following step:
A. pad for the first time: the grey cloth after the hot water wash is put into desizing machine, add auxiliary agent and complex enzyme system, auxiliary agent is: stabilizing agent, alkaline agent, activator and concentration are 27.5% hydrogen peroxide solution; Complex enzyme system is: alkaline pectase, amylase and lignin-degrading enzymes system;
B. with fabric at 40 ℃ of following cold dome 18h;
C. 80 ℃～100 ℃ following hot water wash 2～4 times, again cold wash once, squezzing, the temperature of cold wash is below 20 ℃, pick-up is 75%;
D. pad for the second time: in desizing machine, add auxiliary agent: bleeding agent, stabilizing agent, activator, scouring agent and concentration are 27.5% hydrogen peroxide solution;
E. at 70 ℃～90 ℃ following fabric decatize 0.8～1.2h;
F. 80 ℃～100 ℃ following hot water wash 2～4 times, again cold wash once, the temperature of cold wash is below 20 ℃, oven dry.
2. a kind of biological enzyme as claimed in claim 1 is to the technology of fabric pretreatment; It is characterized in that; Among the described step a, auxiliary dosage is: stabilizing agent: 2～4g/L, alkaline agent: 3～6g/L, activator: 0.1～0.25g/L, concentration are 27.5% hydrogen peroxide solution: 30～34g/L; Complex enzyme system: 8～12g/L.
3. a kind of biological enzyme as claimed in claim 1 is characterized in that to the technology of fabric pretreatment among the described step a, the weight ratio of alkaline pectase, amylase, lignin-degrading enzymes system is 1:1:1～4:1:1.
4. a kind of biological enzyme as claimed in claim 1 is characterized in that to the technology of fabric pretreatment among the described step a, lignin-degrading enzymes system comprises that laccase, manganese peroxidase, lignin peroxidase, their weight ratio are 1:1:1.
5. a kind of biological enzyme as claimed in claim 1 is to the technology of fabric pretreatment; It is characterized in that; In the described steps d; Auxiliary dosage is: bleeding agent: 3～5g/L, stabilizing agent: 1～3g/L, activator: 3～5g/L, scouring agent: 15～22g/L, concentration is 27.5% hydrogen peroxide solution: 30～34g/L.
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| CN2010105664513A CN102080331B (en) | 2010-12-01 | 2010-12-01 | Process for pre-treating fabrics by bio-enzymatic method |
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|---|---|---|---|
| CN2010105664513A CN102080331B (en) | 2010-12-01 | 2010-12-01 | Process for pre-treating fabrics by bio-enzymatic method |
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| CN102080331B true CN102080331B (en) | 2012-08-22 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517909B (en) * | 2011-12-14 | 2014-07-02 | 华纺股份有限公司 | Method for synchronously desizing, refining and bleaching fabrics |
| CN103668826B (en) * | 2012-09-11 | 2016-03-16 | 广东溢达纺织有限公司 | A kind of cold pad--batch method of whitening of COTTON FABRIC |
| CN103993485A (en) * | 2014-04-23 | 2014-08-20 | 江苏华艺服饰有限公司 | Desizing agent suitable for wool fabrics |
| CN103952918B (en) * | 2014-05-13 | 2015-12-02 | 清华大学 | Cotton fabrics biology enzyme cold pad--batch short route open width continual scouring and bleaching dye production technology |
| CN104018336B (en) * | 2014-06-25 | 2016-01-20 | 江苏联发纺织股份有限公司 | A kind of desizing method of textile yarn-dyed fabric |
| CN104018337B (en) * | 2014-06-25 | 2015-12-02 | 江苏联发纺织股份有限公司 | With the desizing method of the textile yarn-dyed fabric of starch and the starching of PVA mixed slurry |
| CN104109587B (en) * | 2014-07-03 | 2018-03-20 | 赵彰 | Low temperature soaping enzyme and its application in vital staining soaps technique |
| CN105256591A (en) * | 2015-11-13 | 2016-01-20 | 浙江森悦纺织科技有限公司 | Production technology for environment-friendly sun-proof cotton fabric |
| CN107419458A (en) * | 2017-08-01 | 2017-12-01 | 如皋市协和印染有限公司 | A kind of desizing of pure tencel on long vehicle |
| CN109853265A (en) * | 2019-01-14 | 2019-06-07 | 华纺股份有限公司 | A kind of dyeing and finishing technology containing original liquid coloring dacron cotton tencel ammonia multifilament component spandex fabric functional fabric |
| CN113529402B (en) * | 2021-07-12 | 2022-06-24 | 武汉纺织大学 | Cold-batch bleaching method for pure cotton spunlace non-woven fabric |
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| CN1723272A (en) * | 2001-06-29 | 2006-01-18 | 诺维信北美公司 | Preparation of cellulosic materials |
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