CN103061164A - 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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- CN103061164A CN103061164A CN2012103756543A CN201210375654A CN103061164A CN 103061164 A CN103061164 A CN 103061164A CN 2012103756543 A CN2012103756543 A CN 2012103756543A CN 201210375654 A CN201210375654 A CN 201210375654A CN 103061164 A CN103061164 A CN 103061164A
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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 the biosurfactant technical field, relate in particular to a kind of rhamnolipid as the application of printing and dyeing assistant.
Background technology
Biosurfactant be a class by microorganism, animal or plant produce on performance with the material of synthetic surfactant fairly similar, its molecule is comprised of polarity hydrophilic radical and nonpolar lipophilic group two parts, can form molecular layer at boundary, reduce interfacial energy, has good surface-active action, such as various functions such as emulsification, dispersion, wetting, cleaning and infiltrations.Compare with synthetic surfactant, biosurfactant makes its surface-activity stronger because chemical group complexity and number also more; Itself is nontoxic, and use amount still less easily is degraded by microorganisms, and has good environment and healthy friendly characteristic.Rhamnolipid has stronger surface and interface activity as a kind of biosurfactant, and low toxicity, biodegradable are widely used on oil exploitation, environmental protection, medication chemistry, food and the agricultural.Rhamnolipid is exactly class biosurfactant of greatest concern wherein, is combined into the covalent bond form by carbohydrate and LCFA or hydroxy fatty acid, take sugar as hydrophilic group, take aliphatic acid as the hydrophobic group.Its chemical constitution has determined that this biosurfactant is very easily water-soluble, but is 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.80%～83% printing and dyeing assistant belongs to surfactant.Because the chemical surfactant group is simple, cause each surfactant role single, therefore each operation of printing and dyeing all tends to use nearly tens kinds of surfactants, respectively printing and dyeing pretreatment procedure in as wetting agent, detergent, dispersant, scouring agent and desizing agent etc., perhaps in dyeing process as levelling agent, defoamer, accelerant and emulsifying agent etc.But, a large amount of chemical printing and dyeing assistants that use are difficult to be biodegradable, the destructible ecosystem and polluted surface underground water, and its impact on environment is larger, and often there is healthy toxicity in itself at (such as Toximul series), makes a lot of printing and dyeing assistants fall into " green barrier " limits.For example; the effect that the printing and dyeing assistants such as nonyl phenol and polyoxyethylene nonylphenol ether class have environmental hormone; in case enter human body; can make human hormone's level unbalance; have a strong impact on the sexual organ development, slow down neurodevelopment and reduce human body autoimmunity ability, therefore listed in the chemicals that restriction is used as far back as the eighties in last century by the Atlantic Ocean, northeast 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 brands still at a large amount of surfactants that use multiple restriction to use.In addition, chemical printing and dyeing assistant can affect the bioenzyme activity in the printing and dyeing biological treatment usually, has hindered the development of printing and dyeing biotechnologys.Because chemical surfactant exists performance single and be difficult for acid and alkali resistance, oxidant and high temperature, causes general printing and dyeing pre-treatment to comprise destarch, refining and three operations of bleaching.The defectives such as this technique exists that route is long, alkaline consumption is high, auxiliary agent is many, power consumption height and quantity of wastewater effluent are 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 it as the application report of printing and dyeing assistant.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, the application of a kind of rhamnolipid as printing and dyeing assistant is provided.
The objective 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, the rhamnolipid concentrate that can adopt mass percent concentration to be higher than 80% paste rhamnolipid or the about 30-50% of mass percent concentration disposes after adding water and forms, and surplus is water; Described rhamnolipid is during as printing and dyeing assistant, and consumption is 50-1000mg/L.
Further, described rhamnolipid has the integrated functionality of number of chemical surfactant, have concurrently wetting, disperse, slowly dye, move and dye and the several functions such as level dyeing, and do not affect the activity of biology enzyme.In addition, rhamnolipid can with alkali, the bleaching agent effect of decrement, become one-step method printing and dyeing pretreating reagent.
The beneficial effect that the present invention has is:
1, utilization of the present invention remove thalline rhamnolipid as the printing and dyeing wetting agent, greatly reduce the conventional chemical wetting agent for the harm of human body and environment, it is obvious for the wetting effect of various fabrics to contain 50-1000mg/L rhamnolipid solution.
2, utilization of the present invention remove thalline rhamnolipid as the printing and dyeing dispersant, greatly reduce the conventional chemical dispersant for the harm of human body and environment, contain 50-1000mg/L rhamnolipid solution and have the short remarkable result that disperses for various dyestuffs.
3, utilization of the present invention remove thalline rhamnolipid as levelling agent, greatly reduce the conventional chemical levelling agent for the harm of human body and environment, contain 50-200mg/L rhamnolipid solution and have and significantly slowly dye, move and dye and even dyeing effect.
4, utilization of the present invention remove thalline rhamnolipid as printing and dyeing assistant, greatly reduce the conventional chemical auxiliary agent for the harm of human body and environment, contain 50-200mg/L rhamnolipid solution and do not produce inhibition for multiple biology enzyme.
5, utilization of the present invention goes the rhamnolipid of thalline as the printing and dyeing pretreating reagent, with alkali and bleaching agent synergy, greatly reduce routine and boil, refine and float complexity printing and dyeing pre-treatment that three steps formed for the harm of human body and environment, it is obvious for the pre-treatment finishing effect of various fabrics to contain 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 own can overcome the development of World Textile auxiliary agent and trade set " green barrier ", significantly promotes the development level of China's printing and dyeing assistant.
Description of drawings
Fig. 1 is the slow design sketch that dyes of rhamnolipid.
The specific embodiment
The present invention has adopted the aqueous solution that contains 35～500g/L rhamnolipid, this solution can be that the rhamnolipid concentrate that adopts mass percent concentration to be higher than 80% paste rhamnolipid or the about 30-50% of mass percent concentration disposes after adding water and forms, surplus is water, water quality is not limit, and makes things convenient for meter can use running water.
The remarkable result that particular content of the present invention is described in detail in detail and brings below in conjunction with the drawings and specific embodiments.
Embodiment 1: go the thalline rhamnolipid to the wetting effect of fabric
Rhamnolipid solution is to adopt paste rhamnolipid and the running water of mass percent about 85% formulated, and concentration is 35g/L, and the chemical surfactant that another kind compares is selected polyoxyethylene nonylphenol ether (OP-10).Wetting object is the commercially available cotton grey cloth that is difficult to by water-wet.Grey cloth is cut into the disk of diameter 50mm, and each disk weight is about 0.43g.Pin is inserted the canvas test piece apart from limit 2mm place, clamp gently the cotton grey cloth disk with tweezers, place the 250mL beaker centre bottom that contains or do not contain surfactant 200 ml waters is housed, open stopwatch.When initial, disk floats on test solution top from the bottom, and along with test solution enters driving out of of fibre gap and bubble, test piece begins to sink.When beaker bottom is down in test piece, press the second hand stop table, write down the sedimentation time.Do continuously 5 times 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 obviously is better than OP-10.
Embodiment 2: rhamnolipid is to the peptizaiton of dyestuff
Dispersion of calcium soap is the important indicator that characterizes the dispersant dispersibility, that is: make the 100g enuatrol be dispersed in the minimum dispersant grams of required interpolation in 3 hard water.Prepare first 1000ppm hard water (CaCl2.033g/L, MgSO4.049g/L), draw 1mL sodium oleate solution (5g/L) with the micropipette rifle and put into the 10ml color-comparison tube, rhamnolipid solution (the 200g/l that adds respectively more micro-volume, formulated with the concentrated glycolipid of mass percent 40%), OP-10 solution (100g/L) and alkyl alcohol ether carboxylic acid sodium (100g/L), each adds 2mL hard water, then with distilled water diluting to 6mL, firmly shake up and down 20 times and leave standstill 1min after observe the calcium soap particle dispersity.Along with the increase of dispersant dosage, the quantity of calcium soap suspended matter just reduces gradually, just disappears to calcium soap, and the dispersant dosage of record this moment is dispersion of calcium soap.Detailed results sees Table 2.
Table 2, rhamnolipid and the contrast of OP-10 dispersion effect
As can be known from the above table, the lime soap dispersing power of rhamnolipid obviously is better than OP-10, and is similar with the dispersed optimum alkyl alcohol ether metal carboxylate of bibliographical information.
Embodiment 3: rhamnolipid slow dyes effect
At 50 ℃ of lower 50g fabrics that drop into to the 0.3%(quality) 250ml acid scarlet solution in, it is 0-0.15g/L that the rhamnolipid solution that adds in advance in this solution or do not add embodiment 2 preparation makes its ultimate density, and then the speed with about 1 ℃/min is warming up to 80 ℃.After being put into dye solution, fabric every the 10min sampling, measures the dye uptake of dyestuff.The dye-uptake that detects is seen Fig. 1.
As can be seen from Figure 1, compare with the blank group of contrast, rhamnolipid has the slow effect of dying, and along with the increase of concentration, the slow effect of dying increases.As seen, rhamnolipid has and slows down the effect of dye coloring to the fabric, namely has slow right effect, and the effect highly significant.
Embodiment 4: rhamnolipid move the effect of dying
Rhamnolipid solution (100g/L) is to prepare with the paste rhamnolipid of purity 90% to obtain.Carry out first the dyeing of dacron with acid scarlet, then the dacron that this was dyeed is put in the rhamnolipid (100mg/L) or OP-10 solution (100mg/L) that does not add dyestuff, carry out stripping treatment according to dyeing, dye with the liquid of stripping at last, be calculated according to the following formula and move staining index and move and dye (direct dyes).The results are shown in Table 3.
Table 3 rhamnolipid and OP-10 move and 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 to move and dye effect, but moving of rhamnolipid dye successful and be better than OP-10, compare with the blank group, and moving of RL dyed effect near 2 times.
Embodiment 5: the level dyeing effect of rhamnolipid
Real silk grey cloth through pre-treatment destarch and refining adopts the rhamnolipid solution-dyed to process, and the preparation of rhamnolipid solution and staining procedure are with embodiment 3.Under different rhamnolipid ultimate densities (0,10,25,50,100mg/L), observe dye uniformity.Found that the above rhamnolipid of 25mg/L has significant even dyeing effect.
Embodiment 6: the effect that rhamnolipid is lived to the 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 dosages of rhamnolipid are lived on dyeing four kinds of biology enzymes (cellulase, papain, laccase and pectase) enzyme commonly used.Each enzyme conventional method that adopts alive detects: 3,5-dinitrosalicylic acid method detection fibers element enzyme enzyme is lived, DNS reducing sugar method survey pectase enzyme is lived, forint-phenol reagent process is surveyed protease, ABTS is the AAS laccase activity of substrate.
The impact that table 4, rhamnolipid are lived on four kinds of biology enzyme enzymes
Find out that from upper table rhamnolipid can promote the enzyme of cellulase and pectase to live, and papain and laccase are not had significant inhibitory action yet in the 50-200mg/L concentration range.
Embodiment 7: adopt the high cotton grey cloth of rhamnolipid one-step method pre-treatment
In the present embodiment, the rhamnolipid of the kinds of surface active function such as collection emulsification, dispersion, wetting and infiltration and alkaline-resisting, oxidant and high temperature is used to the one-step method pre-treatment, bring into play the advantage of its strong surface-activity and strong tolerance, with alkali and the bleaching agent effect of decrement, finish pre-treatment process.Particularly, highly dense (185x100) cotton grey cloth that feel is stiff is cut into the 10x10cm square, each cloth drops into and contains rhamnolipid 0-1000mg/L, 10g/LNaOH and 5g/L(effective chlorine) in the 200mL solution of bleaching agent clorox, employing was processed 1 hour under 70 ° of C and gentle agitation (10 rev/mins), then at room temperature washed 5 minutes twice totally.At last, cloth is dried, estimate whiteness, wettability and the pliability of cloth.Every kind for the treatment of conditions repeat three batches.Wherein, whiteness softens so to spend and then estimates with feel then at the moistening height (cm) of the vertical water surface 1min of fabric with the whiteness instrument test of ZBD type, wettability.The results are shown in Table 5.
Table 5, different formulations are processed the pliability of high degree of knitting COTTON FABRIC
| 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 | ★★★ |
From upper table, find out, can jointly realize one-step process preprocessing technology with alkali and hydrogen peroxide more than the rhamnolipid 500mg/L, reduce auxiliary dosage, have the advantages such as easy and simple to handle, that 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 blending thing.Used Na2SiO3 concentration is 2g/L, oxydol H 2O2 (2g/l), and rhamnolipid 0,250,500mg/L, treatment conditions: bath raio 1:20 at 95 ℃ of lower 1.5h that process, then at room temperature washes 5min.With embodiment 7, detect whiteness, wettability and pliability.Found that the existence of rhamnolipid (being higher than 250mg/L) can significantly improve the whiteness of fabric, wettability and gentle right degree.Illustrate to have the kinds of surface active function concurrently and can alkaline-resistingly can increase substantially the pre-treatment effect with rhamnolipid oxide, realize the printing and dyeing pre-treatment that the number of chemical combinations-of surfactants is arranged and just can finish through destarch, refining and three steps of bleaching.
Above-described embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes 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's, the rhamnolipid concentrate that can adopt mass percent concentration to be higher than 80% paste rhamnolipid or the about 30-50% of mass percent concentration disposes after adding water and forms, and surplus is water; Described rhamnolipid is during as printing and dyeing assistant, and consumption is 50-1000 mg/L.
2. the according to claim 1 application of described rhamnolipid in printing and dyeing assistant is characterized in that, described printing and dyeing assistant is retarding agents.
3. the according to claim 1 application of described rhamnolipid in printing and dyeing assistant is characterized in that, described printing and dyeing assistant is for moving stain.
4. the according to claim 1 application of described rhamnolipid in printing and dyeing assistant is characterized in that, described printing and dyeing assistant is levelling agent.
5. described rhamnolipid is characterized in that as the application of printing and dyeing assistant according to claim 1, and described printing and dyeing assistant is the one-step method pretreating reagent, described pretreating reagent also comprises alkali and bleaching agent, wherein, the concentration of alkali is 2000-10000 mg/L, and bleaching agent concentration is 2000-5000 mg/L.
6. described rhamnolipid pretreating reagent according to claim 5 is characterized in that the alkali that described pretreating reagent comprises can be NaOH, sodium metasilicate etc.
7. described rhamnolipid pretreating reagent according to claim 5 is characterized in that the bleaching agent that described pretreating reagent comprises can be hydrogen peroxide, clorox etc.
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Cited By (3)
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| CN109944055A (en) * | 2019-03-19 | 2019-06-28 | 天津工业大学 | A kind of environment-friendly type desizing method of 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 |
| CN112574829A (en) * | 2019-09-29 | 2021-03-30 | 天津工业大学 | Environment-friendly soaping agent for dyeing cotton fabric by reactive dye and preparation method and application thereof |
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| CN109944055A (en) * | 2019-03-19 | 2019-06-28 | 天津工业大学 | A kind of environment-friendly type desizing method of fabric |
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| 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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Effective date of registration: 20220207 Address after: 317200 No. 758, Renmin East Road, Chicheng street, Tiantai County, Taizhou City, Zhejiang Province Patentee after: Zhejiang Shengda Zijin Biotechnology Co.,Ltd. Address before: Room 1112, South Taihu science and technology innovation building, 1366 Hongfeng Road, Huzhou City, Zhejiang Province, 313000 Patentee before: HUZHOU GEMKING BIOTECH Co.,Ltd. |