Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Application of rhamnolipid in serving as printing and dyeing auxiliary

A technology of rhamnolipid and printing and dyeing auxiliaries, which is applied in the fields of dyeing, textiles and papermaking, fiber treatment, etc., can solve the problems that have not been reported on the application of printing and dyeing auxiliaries, reduce the harm to the human body and the environment, and improve the development level , The effect of overcoming green barriers

Active Publication Date: 2013-04-24
浙江圣达紫金生物科技有限公司
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although rhamnolipid has potential wide application, it has not been reported as a printing and dyeing auxiliaries

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Application of rhamnolipid in serving as printing and dyeing auxiliary
  • Application of rhamnolipid in serving as printing and dyeing auxiliary
  • Application of rhamnolipid in serving as printing and dyeing auxiliary

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: the wetting effect of debacterial body rhamnolipid to fabric

[0019] The rhamnolipid solution is prepared from paste-like rhamnolipid and tap water with a mass percentage of about 85%, and the concentration is 35g / L. Another chemical surfactant for comparison is nonylphenol polyoxyethylene ether ( OP-10). The wetting target is a commercially available cotton gray cloth which is difficult to wet with water. The gray cloth is cut into discs with a diameter of 50 mm, and each disc weighs about 0.43 g. Insert the pin into the canvas test piece at a distance of 2mm from the edge, gently clamp the cotton gray cloth disc with tweezers, place it at the bottom of the center of a 250mL beaker containing 200ml of water with or without surfactant, and start the stopwatch. Initially, the disc floats from the bottom to the top of the test solution, and as the test solution enters the fiber gap and the air bubbles are driven out, the test piece begins to sink. When t...

Embodiment 2

[0023] Embodiment 2: the dispersing action of rhamnolipid to dyestuff

[0024] Calcium soap dispersibility is an important index to characterize the dispersant ability of dispersant, that is, the minimum gram of dispersant that needs to be added to disperse 100g sodium oleate in 3 hard water. First prepare 1000ppm hard water (CaCl2.033g / L, MgSO4.049g / L), use a micropipette to draw 1mL of sodium oleate solution (5g / L) into a 10ml stoppered colorimetric tube, and then add microvolumes of Rhamnolipid solution (200g / l, prepared with 40% mass percentage of concentrated glycolipid), OP-10 solution (100g / L) and sodium alkyl alcohol ether carboxylate (100g / L), add 2mL hard water to each , and then diluted to 6mL with distilled water, vibrated up and down 20 times vigorously and stood for 1min to observe the dispersion state of the calcium soap particles. As the amount of dispersant increases, the amount of calcium soap suspended matter gradually decreases until the calcium soap just ...

Embodiment 3

[0028] Embodiment 3: the retardation effect of rhamnolipid

[0029] Drop into 50g fabric at 50 ℃ in the 250ml acid scarlet solution of 0.3% (mass), add or do not add the rhamnolipid solution prepared in Example 2 in advance in this solution so that its final concentration is 0-0.15g / L, Then the temperature was raised to 80°C at a rate of about 1°C / min. Samples are taken every 10 minutes after the fabric is put into the dye solution, and the percentage of dye uptake is determined. Detected uptake rates see figure 1 .

[0030] From figure 1 It can be seen that, compared with the control blank group, rhamnolipid has slow staining effect, and with the increase of concentration, the slow staining effect increases. It can be seen that rhamnolipid has the effect of slowing down the coloring of dyes on fabrics, that is, it has a slowing effect, and the effect is very significant.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

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 [0001] The invention relates to the technical field of biosurfactants, in particular to the application of a rhamnolipid as a printing and dyeing auxiliary agent. Background technique [0002] Biosurfactants are a class of substances produced by microorganisms, animals or plants that are very similar in performance to chemically synthesized surfactants. Their molecules are composed of polar hydrophilic groups and non-polar lipophilic groups. It can form a molecular layer on the phase interface, reduce the interface energy, and has good surface activity, such as emulsification, dispersion, wetting, cleaning and penetration, and many other functions. Compared with chemically synthesized surfactants, biosurfactants have stronger surface activity due to their complex and large number of chemical groups; they are non-toxic, use less, are easily degraded by microorganisms, and have good environmental and environmental protection properties. Health friendly propert...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D06P1/651D06M13/148D06M13/11D06L3/00D06L4/13D06L4/23
Inventor 孟琴张国亮
Owner 浙江圣达紫金生物科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com