CN103061164B - Application of rhamnolipid in serving as printing and dyeing auxiliary - Google Patents
Application of rhamnolipid in serving as printing and dyeing auxiliary Download PDFInfo
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- CN103061164B CN103061164B CN201210375654.3A CN201210375654A CN103061164B CN 103061164 B CN103061164 B CN 103061164B CN 201210375654 A CN201210375654 A CN 201210375654A CN 103061164 B CN103061164 B CN 103061164B
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Abstract
The invention discloses application of rhamnolipid in serving as a printing and dyeing auxiliary. Rhamnolipid obviously promotes humidification, dispersion, retardant dyeing and mobile dyeing; an average dyeing effect is outstanding; the bio-enzyme activity in a printing and dyeing process cannot be influenced; the rhamnolipid can replace various chemical surfactants and can resist alkaline and oxidants, so that the rhamnolipid can be mixed with the alkaline and a decolorizer to finish one-step pretreatment; the using amount of auxiliaries is reduced; and therefore, the conventional pretreatment process consisting of three steps including stewing, refining and bleaching is greatly simplified, and the flow is shortened. The rhamnolipid replaces the chemical surfactant and serves as the printing and dyeing auxiliary, so that an effect is outstanding; and the rhamnolipid realizes biodegradation, is non-toxic and has remarkable environment-friendly and healthy characteristics.
Description
Technical field
The present invention relates to biosurfactant technical field, particularly relate to the application of a kind of rhamnolipid as printing and dyeing assistant.
Background technology
Biosurfactant be a class by microorganism, animal or plant produce in performance with the material of synthetic surfactant fairly similar, its molecule is made up of polar hydrophilic group and nonpolar lipophilic group two parts, molecular layer can be formed on boundary, reduce interfacial energy, the surface-active action had, as various functions such as emulsification, dispersion, wetting, cleaning and infiltrations.Compared with synthetic surfactant, biosurfactant is due to chemical group complexity and number is also many, makes its surface-activity stronger; Itself is nontoxic, and use amount is less, is easily degraded by microorganisms, has good environment and healthy complimentary nature.Rhamnolipid, as a kind of biosurfactant, has stronger surface and interface active, low toxicity, biodegradable, is widely used in oil exploitation, environmental protection, medication chemistry, food and agriculturally.Rhamnolipid is exactly the biosurfactant that wherein a class is of greatest concern, and be combined into covalent bond form by carbohydrate and LCFA or hydroxy fatty acid, being hydrophilic group with sugar, take aliphatic acid as hydrophobic group.It is very easily water-soluble that its chemical constitution determines this biosurfactant, but be soluble in solvent, can be widely used in the industries such as environment remediation, cosmetics and medicine.
Printing and dyeing assistant is one of most important Application Areas of chemical surfactant.The printing and dyeing assistant of 80% ~ 83% belongs to surfactant.Because chemical surfactant group is simple, cause each surfactant role single, therefore each operation of printing and dyeing all often uses nearly tens kinds of surfactants, printing and dyeing as wetting agent, detergent, dispersant, scouring agent and desizing agent etc. in pretreatment procedure respectively, or as levelling agent, defoamer, accelerant and emulsifying agent etc. in dyeing process.But, the chemical printing and dyeing assistant of a large amount of use is difficult to be biodegradable, the destructible ecosystem and polluted surface underground water, and it is larger on the impact of environment, and often there is healthy toxicity in itself (as Toximul series), makes a lot of printing and dyeing assistant fall into " green barrier " limits.Such as; the printing and dyeing assistants such as nonyl phenol and polyoxyethylene nonylphenol ether class have the effect of environmental hormone; once enter human body; human hormone's level can be made unbalance; have a strong impact on sexual organ development, slow down neurodevelopment and reduce human autoimmune's ability, therefore listed in the chemicals of restriction use as far back as the eighties in last century by Northeast Atlantic Ocean marine environmental protection pact.Because these chemical printing and dyeing assistants have excellent wetting, osmosis, until in August, 2011, green peace organization still detects numerous internationally renowned brand still at a large amount of surfactant using multiple restriction to use.In addition, chemical printing and dyeing assistant can affect the bioenzyme activity in printing and dyeing biological treatment usually, hinders the development of printing and dyeing biotechnology.Because chemical surfactant exists performance single and not easily acid and alkali resistance, oxidant and high temperature, general printing and dyeing pre-treatment is caused to comprise destarch, refining and bleaching three operations.This technique exists that route is long, alkaline consumption is high, auxiliary agent is many, it is high to consume energy and the defect such as quantity of wastewater effluent is many.The pretreating technology for printing and dyeing of high efficiency shortened process is latest development trend both at home and abroad.
Although the extensive use that rhamnolipid is potential, it there is not yet its application report as printing and dyeing assistant.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of rhamnolipid as the application of printing and dyeing assistant.
The object of the invention is to be achieved through the following technical solutions: a kind of rhamnolipid is as the application of printing and dyeing assistant, the concentration of described rhamnolipid is 35 ~ 500g/L's, can adopt mass percent concentration higher than 80% paste rhamnolipid or the mass percent concentration rhamnolipid concentrate that is about 30-50% configure after adding water and form, surplus is water; When described rhamnolipid is as printing and dyeing assistant, consumption is 50-1000mg/L.
Further, described rhamnolipid has the integrated functionality of number of chemical surfactant, has wetting, dispersion, slow dye concurrently, moves the several functions such as dye and level dyeing, and do not affect the activity of biology enzyme.In addition, rhamnolipid can with the alkali of decrement, bleaching agent effect, become one-step method printing and dyeing pretreating reagent.
The beneficial effect that the present invention has is:
1, the present invention utilizes and goes the rhamnolipid of thalline as printing and dyeing wetting agent, greatly reduces the harm of conventional chemical wetting agent for human body and environment, obvious for the wetting effect of various fabric containing 50-1000mg/L rhamnolipid solution.
2, the present invention utilizes and goes the rhamnolipid of thalline as printing and dyeing dispersant, greatly reduces the harm of conventional chemical dispersant for human body and environment, containing 50-1000mg/L rhamnolipid solution, various dyestuff is had to the remarkable result of short dispersion.
3, the present invention utilizes and goes the rhamnolipid of thalline as levelling agent, greatly reduces the harm of conventional chemical levelling agent for human body and environment, containing 50-200mg/L rhamnolipid solution have significantly slow dye, move dye and even dyeing effect.
4, the present invention utilizes and goes the rhamnolipid of thalline as printing and dyeing assistant, greatly reduces the harm of conventional chemical auxiliary agent for human body and environment, does not produce inhibition containing 50-200mg/L rhamnolipid solution for multiple biology enzyme.
5, the present invention utilizes and goes the rhamnolipid of thalline as printing and dyeing pretreating reagent, act synergistically with alkali and bleaching agent, greatly reduce the harm of complexity printing and dyeing pre-treatment for human body and environment that three steps compositions were boiled, and refined and floated to routine, obvious for the pre-treatment finishing effect of various fabric containing 50-1000mg/L rhamnolipid solution.
In a word, rhamnolipid can have the function of several functions textile auxiliary concurrently, and simultaneously nontoxic and environmental friendliness itself, can overcome the development of World Textile auxiliary agent and " green barrier " set by trade, significantly promote the development level of China's printing and dyeing assistant.
Accompanying drawing explanation
Fig. 1 is the slow dye design sketch of rhamnolipid.
Detailed description of the invention
Present invention employs the aqueous solution containing 35 ~ 500g/L rhamnolipid, this solution can be adopt mass percent concentration higher than 80% paste rhamnolipid or the mass percent concentration rhamnolipid concentrate that is about 30-50% configure after adding water and form, surplus is water, water quality is not limit, and facilitates meter to use running water.
Below in conjunction with the remarkable result that the drawings and specific embodiments describe particular content of the present invention in detail and bring.
Embodiment 1: go thalline rhamnolipid to the wetting effect of fabric
Rhamnolipid solution be adopt the paste rhamnolipid of mass percent about 85% and running water formulated, concentration is 35g/L, and the chemical surfactant that another kind compares selects polyoxyethylene nonylphenol ether (OP-10).Wetting object is the commercially available cotton grey cloth being difficult to be spontaneously wet out by water.Grey cloth is cut into the disk of diameter 50mm, each disk weight is about 0.43g.Pin is inserted canvas test piece apart from 2mm place, limit, clamp cotton grey cloth disk gently with tweezers, be placed in the 250mL beaker centre bottom being equipped with containing or not containing surfactant 200 ml water, open stopwatch.Time initial, disk floats on test solution top from bottom, and along with test solution enters driving out of of fibre gap and bubble, test piece starts to sink.When beaker bottom is down in test piece, by second hand stop table, write down the sedimentation time.Do 5 times continuously with same condition, average.The results are shown in following table 1.
Table 1 rhamnolipid is to the wetting effect of cotton grey cloth
From the above results, the wettability of rhamnolipid is obviously better than OP-10.
Embodiment 2: rhamnolipid is to the peptizaiton of dyestuff
Dispersion of calcium soap is the important indicator characterizing dispersant ability, that is: make 100g enuatrol be dispersed in required minimum dispersant grams of adding in 3 hard water.First prepare 1000ppm hard water (CaCl2.033g/L, MgSO4.049g/L), draw 1mL sodium oleate solution (5g/L) with micropipette rifle and put into 10ml color-comparison tube, add the rhamnolipid solution (200g/l of micro-scale volume more respectively, concentrate glycolipid by mass percent 40% formulated), OP-10 solution (100g/L) and alkyl alcohol ether carboxylic acid sodium (100g/L), respectively add 2mL hard water, then with distilled water diluting to 6mL, firmly shake 20 times up and down and observe the dispersity of calcium soap particle after leaving standstill 1min.Along with the increase of dispersant dosage, the quantity of calcium soap suspended matter just reduces gradually, just disappears to calcium soap, and record dispersant dosage now, is dispersion of calcium soap.Detailed results is in table 2.
Table 2, rhamnolipid contrast with OP-10 dispersion effect
As can be known from the above table, the lime soap dispersing power of rhamnolipid is obviously better than OP-10, similar with the dispersed optimum alkyl alcohol ether metal carboxylate of bibliographical information.
Embodiment 3: the slow dye effect of rhamnolipid
At 50 DEG C, drop into 50g fabric to 0.3%(quality) 250ml acid scarlet solution in, add in advance in this solution or do not add embodiment 2 prepare rhamnolipid solution make its ultimate density be 0-0.15g/L, be then warming up to 80 DEG C with the speed of about 1 DEG C/min.Every 10min sampling after fabric is put into dye solution, measure the dye uptake of dyestuff.The dye-uptake detected is shown in Fig. 1.
As can be seen from Figure 1, compared with blank group of contrast, rhamnolipid has slow dye effect, and along with the increase of concentration, slow dye effect increases.Visible, rhamnolipid has and slows down dye coloring to the effect on fabric, namely has slow right effect, and effect highly significant.
Embodiment 4: rhamnolipid move dye effect
Rhamnolipid solution (100g/L) obtains with the paste rhamnolipid preparation of purity 90%.The dyeing of dacron is first carried out with acid scarlet, then the dacron that this dyeed is put in the rhamnolipid (100mg/L) not adding dyestuff or OP-10 solution (100mg/L), stripping treatment is carried out according to dyeing, finally dye with liquid of stripping, calculating moves staining index and moves dye (direct dyes) according to the following formula.The results are shown in Table 3.
Table 3 rhamnolipid and OP-10 move dye effect comparison
| Blank | Rhamnolipid | OP-10 | |
| Move staining index % | 25.4 | 41.3 | 32.1 |
It can be seen from the table, rhamnolipid and OP-10 have and move dye effect, but the dye successful that moves of rhamnolipid is better than OP-10, and compared with blank group, RL moves dye effect close to 2 times.
Embodiment 5: the level dyeing effect of rhamnolipid
Real silk grey cloth through pre-treatment destarch and refining adopts the process of rhamnolipid solution-dyed, and the preparation of rhamnolipid solution and staining procedure are with embodiment 3.Under different rhamnolipid ultimate density (0,10,25,50,100mg/L), observe dye uniformity.Found that, the rhamnolipid of more than 25mg/L has significant even dyeing effect.
Embodiment 6: the effect that rhamnolipid is lived to biology enzyme enzyme
Rhamnolipid solution adopts the concentrated rhamnolipid of 50% purity formulated, and its concentration is 100g/L, and surplus is deionized water.Detect the impact that the different dosage of rhamnolipid is lived on four kinds of biology enzymes (cellulase, papain, laccase and the pectase) enzyme that dyeing is conventional.Each enzyme is lived and is adopted conventional method to detect: 3,5-dinitrosalicylic acid system detection fibers element enzyme enzyme is lived, DNS reducing sugar method surveys the AAS laccase activity that pectase enzyme is lived, forint-phenol reagent process surveys protease, ABTS is substrate.
The impact that table 4, rhamnolipid are lived on four kinds of biology enzyme enzymes
Find out from upper table, rhamnolipid can promote that in 50-200mg/L concentration range the enzyme of cellulase and pectase is lived, and does not also have significant inhibitory action to papain and laccase.
Embodiment 7: adopt a rhamnolipid one-step method pre-treatment height cotton grey cloth
In the present embodiment, kinds of surface active functions such as collection emulsification, dispersion, wetting and infiltration and the rhamnolipid of alkaline-resisting, oxidant and high temperature is used to one-step method pre-treatment, play the advantage of its strong surface-activity and strong tolerance, alkali and bleaching agent effect with decrement, complete pre-treatment process.Particularly, highly dense stiff for feel (185x100) cotton grey cloth is cut into 10x10cm square, each cloth drops into containing rhamnolipid 0-1000mg/L, 10g/LNaOH and 5g/L(effective chlorine) in the 200mL solution of bleaching agent clorox, adopt and process 1 hour under 70 ° of C and gentle agitation (10 revs/min), then at room temperature wash 5 minutes twice totally.Finally, cloth is dried, evaluate the whiteness of cloth, wettability and pliability.Often kind for the treatment of conditions repeat three batches.Wherein, the whiteness whiteness instrument of ZBD type is tested, and wettability is then at the moistening height (cm) of the vertical water surface 1min of fabric, and soft right degree is then estimated by feel.The results are shown in Table 5.
The pliability of table 5, high degree of the knitting COTTON FABRIC of different formulations process
| Rhamnolipid concentration, mg/L | Whiteness | Moistening height, cm | Pliability |
| 0 | 55 | 0.8 | Firmly |
| 250 | 71 | 2.5 | ★ |
| 500 | 70 | 3.4 | ★ |
| 750 | 79 | 3.7 | ★★ |
| 1000 | 81 | 3.6 | ★★★ |
Find out from upper table, more than rhamnolipid 500mg/L can realize one-step process preprocessing technology jointly with alkali and hydrogen peroxide, reduces auxiliary dosage, has the advantages such as easy and simple to handle, technological process is short.
Embodiment 8 adopts rhamnolipid one-step method pre-treatment real silk/rhizoma Gastrodiae blending
With embodiment 7, adopt rhamnolipid with sodium metasilicate and hydrogen peroxide acting in conjunction, carry out one-step method pre-treatment real silk/rhizoma Gastrodiae blend.Na2SiO3 concentration used is 2g/L, oxydol H 2O2 (2g/l), rhamnolipid 0,250,500mg/L, treatment conditions: bath raio 1:20, process 1.5h, then at room temperature wash 5min at 95 DEG C.With embodiment 7, detect whiteness, wettability and pliability.Found that the existence of rhamnolipid (higher than 250mg/L) can significantly improve the whiteness of fabric, wettability and soft right degree.Illustrate and have kinds of surface active function concurrently and alkaline-resistingly can increase substantially pre-treatment effect with rhamnolipid that is oxide, realize having number of chemical group of surfactants to merge the printing and dyeing pre-treatment that just can complete through destarch, refining and bleaching three steps.
Above-described embodiment is used for explaining and the present invention is described, instead of limits the invention, and in the protection domain of spirit of the present invention and claim, any amendment make the present invention and change, all fall into protection scope of the present invention.
Claims (7)
1. the application of rhamnolipid in printing and dyeing assistant, it is characterized in that, the concentration of described rhamnolipid is 35 ~ 500g/L, adopt mass percent concentration to configure after adding water higher than the paste rhamnolipid of 80% or the rhamnolipid concentrate of mass percent concentration 30-50% to form, surplus is water; When described rhamnolipid is as printing and dyeing assistant, consumption is 50-1000 mg/L.
2. the application of rhamnolipid in printing and dyeing assistant according to claim 1, is characterized in that, described printing and dyeing assistant is retarding agents.
3. the application of rhamnolipid in printing and dyeing assistant according to claim 1, is characterized in that, described printing and dyeing assistant is for moving stain.
4. the application of rhamnolipid in printing and dyeing assistant according to claim 1, is characterized in that, described printing and dyeing assistant is levelling agent.
5. rhamnolipid, as the application of printing and dyeing assistant, is characterized in that according to claim 1, and described printing and dyeing assistant is one-step method pretreating reagent, described pretreating reagent also comprises alkali and bleaching agent, wherein, paper mill wastewater is 2000-10000 mg/L, and bleaching agent concentration is 2000-5000 mg/L.
6. rhamnolipid, as the application of printing and dyeing assistant, is characterized in that according to claim 5, and the alkali that described pretreating reagent comprises is NaOH, sodium metasilicate.
7. rhamnolipid, as the application of printing and dyeing assistant, is characterized in that according to claim 5, and the bleaching agent that described pretreating reagent comprises is hydrogen peroxide, clorox.
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| CN109944055B (en) * | 2019-03-19 | 2021-06-04 | 天津工业大学 | Environment-friendly desizing method for fabric |
| CN110656514A (en) * | 2019-09-03 | 2020-01-07 | 无锡德冠生物科技有限公司 | Biomass printing auxiliary and preparation method thereof |
| CN112574829B (en) * | 2019-09-29 | 2021-11-09 | 天津工业大学 | Soaping agent for dyeing cotton fabric by reactive dye and preparation method and application thereof |
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| CN101413207A (en) * | 2008-11-20 | 2009-04-22 | 杨宝林 | Dyeing and finishing process for sea silk fabric |
| CN101649330A (en) * | 2009-08-28 | 2010-02-17 | 东华大学 | Method for producing biologic surfactant by fermenting desized wastewater |
| CN102433780A (en) * | 2011-08-10 | 2012-05-02 | 无锡市联盛印染有限公司 | Process for printing and dyeing pure cotton fabric |
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| CN101275363B (en) * | 2008-05-08 | 2010-09-08 | 江南大学 | Method for scouring and bleaching cotton fabric with combined enzyme preparation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101413207A (en) * | 2008-11-20 | 2009-04-22 | 杨宝林 | Dyeing and finishing process for sea silk fabric |
| CN101649330A (en) * | 2009-08-28 | 2010-02-17 | 东华大学 | Method for producing biologic surfactant by fermenting desized wastewater |
| CN102433780A (en) * | 2011-08-10 | 2012-05-02 | 无锡市联盛印染有限公司 | Process for printing and dyeing pure cotton fabric |
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